Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

Αρχειοθήκη ιστολογίου

! # Ola via Alexandros G.Sfakianakis on Inoreader

Η λίστα ιστολογίων μου

Πέμπτη 23 Φεβρουαρίου 2017

Updated evidence-based (S2e) European Dermatology Forum guideline on topical corticosteroids in pregnancy

Abstract

Background

Topical corticosteroids may be needed for treating skin conditions in pregnancy. Nevertheless, only limited data on the fetal effects of topical corticosteroids are available.

Objective

To update an evidence-based guideline on the safe use of topical corticosteroids in pregnancy.

Methods

A guideline subcommittee of the European Dermatology Forum updated the guideline by adding and appraising new evidence.

Results

The current best evidence from 14 observational studies with 1 601 515 study subjects found no significant associations between maternal use of topical corticosteroids of any potency and some adverse pregnancy outcomes including mode of delivery, birth defect, preterm delivery and fetal death. However, maternal use of potent/very potent topical corticosteroids, especially in large amounts, is associated with an increase in the risk of low birthweight.

Conclusion

Mild/moderate topical corticosteroids should be preferred to potent/very potent ones in pregnancy. The well-known topical side-effects of corticosteroids on the mother's side need to be considered as well.



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Omega-3 fatty acids as adjunctive treatment for bexarotene-induced hypertriglyceridaemia in patients with cutaneous T-cell lymphoma

Summary

Background

Bexarotene is an oral retinoid approved for treating cutaneous T-cell lymphoma (CTCL) in patients resistant to first-line systemic treatment. Hypertriglyceridaemia is an unavoidable adverse effect of bexarotene therapy, and requires monitoring because of the risk of developing pancreatitis. Therefore, prophylactic hypolipidaemic therapy, usually with a fibrate alone, is required for preventing bexarotene-induced hypertriglyceridaemia. Despite these measures, a large number of patients develop very severe hypertriglyceridaemia.

Aim

To assess the lipid metabolism changes before and after the use of a combination of omega-3 fatty acids (n-3 FA) plus fenofibrate compared with fenofibrate alone as a more effective lipid-lowering therapy in patients with CTCL treated with bexarotene.

Methods

From January 2005 to January 2013, we analysed all 25 patients with CTCL treated with bexarotene. The first 18 consecutively enrolled patients received fenofibrate alone as a lipid-lowering therapy, and the next 7 consecutively enrolled patients received a combination of fenofibrate and n-3 FA.

Results

Data for all 25 consecutive patients with CTCL treated with bexarotene were evaluated. Of these, 24 patients (96%) developed hypertriglyceridaemia despite the hypolipidaemic therapy, with this being very severe (> 11.2 mmol/L) in 20% of the cases. Of the 18 patients receiving fenofibrate alone, 5 (28%) developed very severe hypertriglyceridaemia, compared with none of the 7 patients treated with the n-3 FA combination.

Conclusions

Our results suggest that the n-3 FA combination may be more effective than fibrate alone for preventing bexarotene-induced hypertriglyceridaemia.



http://ift.tt/2kT0jjC

Higher Dihydrotestosterone Is Associated with the Incidence of Lung Cancer in Older Men

Abstract

Advancing age is associated with increased cancer incidence, but the role of sex hormones as risk predictors for common cancers in older men remains uncertain. This study was performed to assess associations of testosterone (T), dihydrotestosterone (DHT) and estradiol (E2), with incident prostate, lung and colorectal cancer in community-dwelling older men. Plasma T, DHT and E2 were assayed using liquid chromatography-mass spectrometry between 2001 and 2004 in 3690 men. Cancer outcomes until 20 June 2013 were ascertained using data linkage. Analyses were performed using proportional hazards competing-risks models, and adjustments were made for potential confounding factors including smoking status. Results are expressed as subhazard ratios (SHR). There were 348, 107 and 137 cases of prostate, lung and colorectal cancers respectively during a median of 9.1-year follow-up. Mean T was comparable in current and non-smokers, whilst mean DHT was lower in ex- and current smokers compared to non-smokers. After adjusting for confounders including smoking, higher T or DHT was associated with an increased incidence of lung cancer (SHR = 1.30, 95% CI 1.06–1.60; p = 0.012 per 1 SD increase in T and SHR = 1.29, 95% CI 1.08–1.54; p = 0.004 for DHT). Sex hormones were not associated with prostate or colorectal cancer. In older men, higher T or DHT predict increased incidence of lung cancer over the next decade. Sex hormones are not associated with incident prostate or colorectal cancer. Further studies are warranted to determine if similar associations of sex hormones with lung cancer are present in other populations and to investigate potential underlying mechanisms.



http://ift.tt/2kT1pfi

Omega-3 fatty acids as adjunctive treatment for bexarotene-induced hypertriglyceridaemia in patients with cutaneous T-cell lymphoma

Summary

Background

Bexarotene is an oral retinoid approved for treating cutaneous T-cell lymphoma (CTCL) in patients resistant to first-line systemic treatment. Hypertriglyceridaemia is an unavoidable adverse effect of bexarotene therapy, and requires monitoring because of the risk of developing pancreatitis. Therefore, prophylactic hypolipidaemic therapy, usually with a fibrate alone, is required for preventing bexarotene-induced hypertriglyceridaemia. Despite these measures, a large number of patients develop very severe hypertriglyceridaemia.

Aim

To assess the lipid metabolism changes before and after the use of a combination of omega-3 fatty acids (n-3 FA) plus fenofibrate compared with fenofibrate alone as a more effective lipid-lowering therapy in patients with CTCL treated with bexarotene.

Methods

From January 2005 to January 2013, we analysed all 25 patients with CTCL treated with bexarotene. The first 18 consecutively enrolled patients received fenofibrate alone as a lipid-lowering therapy, and the next 7 consecutively enrolled patients received a combination of fenofibrate and n-3 FA.

Results

Data for all 25 consecutive patients with CTCL treated with bexarotene were evaluated. Of these, 24 patients (96%) developed hypertriglyceridaemia despite the hypolipidaemic therapy, with this being very severe (> 11.2 mmol/L) in 20% of the cases. Of the 18 patients receiving fenofibrate alone, 5 (28%) developed very severe hypertriglyceridaemia, compared with none of the 7 patients treated with the n-3 FA combination.

Conclusions

Our results suggest that the n-3 FA combination may be more effective than fibrate alone for preventing bexarotene-induced hypertriglyceridaemia.



http://ift.tt/2kT0jjC

Concept of the Ambulatory Pain Physician

Abstract

Purpose of Review

Given the growing number of ambulatory surgeries being performed and the variability in postoperative pain requirements, early discharge, and inconsistent follow-up, ambulatory surgery presents a unique challenge for this patient population and warrants the presence of an ambulatory pain specialist to evaluate a patient preoperatively and postoperatively to optimize patient safety and satisfaction. This article explores the crucial role that a dedicated pain physician would have in the ambulatory surgery setting.

Recent Findings

The prevalence of chronic pain, opioid use, and substance abuse is growing in this country, while ambulatory and same-day surgery have also experienced considerable growth. Inevitably, more patients with challenging chronic pain or substance abuse are having ambulatory surgery. Increased BMI, advanced age, more comorbidities warranting a higher ASA physical status classification, and longer surgeries are now all components of ambulatory surgery that contribute to increased risk too. Certain surgeries including breast surgery, inguinal hernia repair, and thoracotomy are at higher risk for the conversion of acute to chronic pain, and an ambulatory pain specialist would be beneficial for added focus on these patients.

Summary

Multimodal pain control with non-opioids and regional anesthesia adjuvants are beneficial, while emphasis on a patient's functional capacity may be more useful than quantifying the severity of pain. Despite the best efforts of patients' primary care providers or surgeons, patients often are discharged with more chronic opioid therapy than they presented with, and an ambulatory pain specialist can help manage the complications and prevent further escalation of this opioid epidemic. An onsite anesthesiologist with interest in pain management in each ambulatory surgery center administering anesthesia and available onsite to deal with immediate preoperative, intraoperative, and recovery room would be ideal to curb and manage complication from uncontrolled pain and related pain issues.



http://ift.tt/2lygbXf

Concept of the Ambulatory Pain Physician

Abstract

Purpose of Review

Given the growing number of ambulatory surgeries being performed and the variability in postoperative pain requirements, early discharge, and inconsistent follow-up, ambulatory surgery presents a unique challenge for this patient population and warrants the presence of an ambulatory pain specialist to evaluate a patient preoperatively and postoperatively to optimize patient safety and satisfaction. This article explores the crucial role that a dedicated pain physician would have in the ambulatory surgery setting.

Recent Findings

The prevalence of chronic pain, opioid use, and substance abuse is growing in this country, while ambulatory and same-day surgery have also experienced considerable growth. Inevitably, more patients with challenging chronic pain or substance abuse are having ambulatory surgery. Increased BMI, advanced age, more comorbidities warranting a higher ASA physical status classification, and longer surgeries are now all components of ambulatory surgery that contribute to increased risk too. Certain surgeries including breast surgery, inguinal hernia repair, and thoracotomy are at higher risk for the conversion of acute to chronic pain, and an ambulatory pain specialist would be beneficial for added focus on these patients.

Summary

Multimodal pain control with non-opioids and regional anesthesia adjuvants are beneficial, while emphasis on a patient's functional capacity may be more useful than quantifying the severity of pain. Despite the best efforts of patients' primary care providers or surgeons, patients often are discharged with more chronic opioid therapy than they presented with, and an ambulatory pain specialist can help manage the complications and prevent further escalation of this opioid epidemic. An onsite anesthesiologist with interest in pain management in each ambulatory surgery center administering anesthesia and available onsite to deal with immediate preoperative, intraoperative, and recovery room would be ideal to curb and manage complication from uncontrolled pain and related pain issues.



http://ift.tt/2lygbXf

Primary and secondary prevention of cardiovascular disease in patients with hyperlipoproteinemia (a)

Abstract

General lipoprotein (Lp) (a) screening can help to identify patients at high risk for cardiovascular disease. Non-invasive methods allow early detection of clinically asymptomatic incipient atherosclerotic disease. Medical treatment options are still unsatisfactory. Lp(a) apheresis is an established treatment in Germany for secondary prevention of progressive cardiovascular disease. Statin-based lowering of LDL cholesterol and thrombocyte aggregation inhibitors still represent the basis of medical treatment. Target levels for LDL-cholesterol should be modified in patients with hyperlipoproteinemia (a).



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The German Lipoprotein Apheresis Registry (GLAR) – almost 5 years on

Abstract

Background

Since 2005 an interdisciplinary German apheresis working group has been established by members of both German Societies of Nephrology and of Lipidologists and completed the data set for the registry according to the current guidelines and the German indication guideline for apheresis in 2009. In 2011 the German Lipoprotein Apheresis Registry (GLAR) was launched and data are available over nearly 5 years now.

Methods and results

During the time period 2012–2016, 71 German apheresis centers collected retrospective and prospective observational data of 1435 patients undergoing lipoprotein apheresis (LA) treatment of high LDL-C levels and/or high Lp (a) levels suffering from cardiovascular disease (CVD) or progressive CVD. A total of 15,527 completely documented LA treatments were entered into the database. All patients treated by LA showed a median LDL-C reduction rate of 67.5%, and a median Lp (a) reduction rate of 71.1%. Analog to the Pro(a)LiFe pattern, patient data were analyzed to the incidence rate of coronary events (MACE) 1 and 2 years before the beginning of LA treatment (y-2 and y‑1) and prospectively two years on LA treatment (y + 1 and y + 2). During two years of LA treatment a MACE reduction of 78% was observed. In the years considered, side effects of LA treatment were low (5.9%) and mainly comprised puncture problems.

Conclusions

The data generated by the GLAR shows that LA lowers the incidence rate of cardiovascular events in patients with high LDL-C and/or high Lp (a) levels, progressive CVD, and maximally tolerated lipid lowering medication. In addition, LA treatments were found to be safe with a low rate of side effects.



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Lipoprotein (a) and coronary heart disease – is there an efficient secondary prevention?

Abstract

Lipoprotein (a) (Lp (a)) is one risk factor for the development of cardiovascular diseases. Several studies have shown that Lp (a) hyperlipoproteinaemia has a particular influence on the development of coronary heart disease (CHD). A retrospective single-centre observation study was performed to evaluate the effectiveness of lipid apheresis on the basis of consecutively performed percutaneous coronary interventions (PCI) in patients with high Lp (a) values and angiographically documented CHD.

In 23 pts (male 18, age 60.04 ± 0.58 years) with angiographically documented CHD (first manifestation 48.00 ± 9.41 years), elevated LDL cholesterol (144.39 ± 92.01 mg/dl) and Lp (a) (133.04 ± 39.68 mg/dl), 49 PCI and 3 coronary artery bypass grafting (CABG) procedures had been performed prior to the initiation of lipid apheresis. Following the initiation of weekly lipid apheresis, LDL cholesterol was 99.43 ± 36.53 mg/dl and Lp (a) 91.13 ± 33.02 mg/dl. In a time interval of 59.87 ± 49.49 months (median 51.00, range 1–153 months) 15 pts did not require an additional PCI. In 8 pts (7 pts 3‑vessel disease, 1 pt 2‑vessel disease) 14 PCI – no CABG – were performed after 69.38 ± 71.67 months (median: 32.50, range 17–232 months). The incidence of PCI could thus be reduced by 71.43%.



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Effects of Dietary Macronutrient Composition on FNDC5 and Irisin in Mice Skeletal Muscle

Metabolic Syndrome and Related Disorders , Vol. 0, No. 0.


http://ift.tt/2mrmv0f

Protective Effect of SFE-CO2 of Ligusticum chuanxiong Hort Against d-Galactose-Induced Injury in the Mouse Liver and Kidney

Rejuvenation Research , Vol. 0, No. 0.


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Evaluation of impact of an external breast shield (FlexiShield) in electronic brachytherapy for breast IORT: A phantom study

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Publication date: Available online 23 February 2017
Source:Brachytherapy
Author(s): Yongbok Kim, Jason Wei-Yeong Huynh, Victor J. Gonzalez
PurposeTo investigate Axxent (iCAD, Inc., San Jose, CA) electronic brachytherapy balloon deformation and its dosimetric impact because of an external flexible shield (FlexiShield [FS]; iCAD, Inc.).Methods and MaterialsProstheses breast tissue phantom overlaid three spherical balloon applicators to simulate three clinical scenarios depending on minimum skin-to-balloon surface spacing (SS): balloon with SS of 2 cm, 1 cm, and balloon with 1 cm SS and touching the chest wall. Two sets of megavoltage CT (MVCT) scans were obtained with or without FS for 15 different sizes of balloons. For 45 pairs of MVCT scans, balloon deformation was measured in superior–inferior (dSI) dimension on coronal and sagittal planes and anterior–posterior (dAP) and lateral (dLAT) dimensions on the equatorial plane of balloon. SS was also compared. A treatment plan was made on each MVCT scan. Doses at four balloon surface points and skin were compared. Conformity index value was also compared to evaluate three-dimensional dose distribution. Clinically, 20 Gy was prescribed to the surface of balloon.ResultsBalloon deformation was observed with compression in SI and AP dimensions and expansion in lateral dimension. Average SI compression was 0.5 mm. Average dLat - dAP was 2.4 mm, which resulted in elevated point doses at AP dimension by 10.8% of prescribed dose and reduced point doses at lateral dimension by 4.6%. FS decreased SS by 1.8 mm, increasing skin dose by 1.2 Gy, on average. Conformity index value was decreased from 0.922 to 0.908, on average.ConclusionsThis phantom study demonstrates that use of skin shielding during breast intraoperative radiation therapy can cause balloon deformation and SS reduction, resulting in dosimetric changes that are disregarded in current practice.



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Prostate MRI for brachytherapists: Anatomy and technique

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Publication date: Available online 23 February 2017
Source:Brachytherapy
Author(s): A.M. Venkatesan, R.J. Stafford, C. Duran, P.D. Soni, A. Berlin, P.W. McLaughlin
PurposeTo present an overview of mp MRI techniques necessary for high-resolution imaging of prostate.MethodsWe summarize examples from our clinical experience and concepts from the current literature that illustrate normal prostate anatomy on multiparametric MRI (mp MRI).ResultsOur experience regarding optimal mp MRI image acquisition is provided, as well as a summary of prostate and periprostatic anatomy and anatomical variants that pose challenges for BT.Conclusionsmp MRI provides unparalleled assessment of the prostate and periprostatic anatomy, making it the most appropriate imaging modality to facilitate prostate BT treatment planning, implantation, and followup. This work provides an introduction to prostate mp MR imaging, anatomy, and anatomical variants essential for successful integration mp MRI into prostate brachytherapy practice.



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Escalating dosimetry of UVA-1 in the treatment of alopecia areata

Abstract

Background

Phototherapy can be an option in unresponsive alopecia areata (AA); however, variable results have been reported with its use. We could not find literature of treatment with UVA-1 in AA. A study was designed to evaluate progressive dosimetry to determine the initial dose and its increments.

Methods

Patients with unresponsive AA were recruited. Twenty-five sessions of 30 J/cm2 were administered. If hair regrowth was <75%, the dose was escalated to 60 J/cm2. If hair improvement remained <75%, an additional 25 sessions at 120 J/cm2 were indicated. If total hair regrowth occurred before 75 sessions, a final visit was performed for biopsies and severity of alopecia tool (SALT) evaluation. Clinical and histopathological assessments were performed blindly. Adverse effects were recorded.

Results

Nine men and 13 women were included; 16 were initially S1, one S3, and five S4. Median age was 32 years and median evolution 10 months. Nine patients achieved an S0, eight S1, and five S4 (P = 0.005). The most notable improvement was with 60 J/cm2 (P = 0.02). Biopsies exhibited an absence of inflammation in five patients and mild persistence in 17. An increase of 43.75% in anagen hairs (P ≤ 0.001) was achieved, telogen hairs decreased 16.3% (P = 0.06), and catagen hairs were reduced 22.7% (P = 0.005). Pearson's correlation was −0.82 and P ≤ 0.001, when correlating anagen hairs with final SALT. Improvement has continued for 6 months post treatment. Mild xerosis was observed in all patients, and six (28.6%) developed transient mild hyperpigmentation.

Conclusions

This study provides a basis for UVA-1 dosimetry evaluating its therapeutic value in AA.



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Pseudochromhidrosis: report and review of literature

Abstract

Chromhidrosis is a rare condition where colored sweat comes from the apocrine or eccrine glands. Pseudochromhidrosis is an uncommon condition where colored sweat is related to specific dye-producing bacteria, drugs, dyes, or chemical agents. This article provides a literature review of the various etiology, investigation, treatment, and prognosis. We propose an investigative algorithm to assist dermatologists, pediatric dermatologists, and general practitioners to diagnose this uncommon condition. The treatment options rely on the primary etiology such as removing dyes and chemical agents first and then treating the chromogenic bacteria. Topical and oral erythromycin seems to be the most effective treatment both in unidentified and identified chromogenic bacteria cases. Results and prognosis were excellent and without recurrence.



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Mycetoma-like chromoblastomycosis: a diagnostic dilemma

Abstract

Objectives

Mycetoma and chromoblastomycosis are subcutaneous fungal infections caused by pigmented fungi, common in the tropics and subtropics. Here we report a pregnant woman who presented with a swelling around the ankle joint which was clinically diagnosed as a case of mycetoma; however, further investigations revealed it to be a case of chromoblastomycosis.

Methods

24 year old primigravida presented with an indurated swelling around the ankle joint with multiple nodules and sinuses draining serosanguinous discharge. There was no improvement with antibiotic therapy or surgical debridement. Patient was investigated in detail including radiographs, KOH smear, pus culture and biopsy for histopathology and fungal culture.

Results

o grains were identified from the discharge and KOH smear was negative for fungal elements. Pus culture revealed no bacterial growth. On the other hand, histopathology and fungal culture confirmed it to be a case of chromoblastomycosis caused by Fonsecaea pedrosoi. Treatment was initiated with terbinafine 250 mg daily, and patient showed excellent response within 6 months of therapy.

Conclusion

This unusual mycetoma-like presentation of chromoblastomycosis has not been previously reported in literature and may be attributed to the altered immune status in pregnancy. This should alert the clinician about the need to be vigilant of the atypical presentations of well-known dermatological conditions, especially in special situations like pregnancy.



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Hyperbaric oxygen therapy for chronic ulcers in systemic sclerosis – case series

Abstract

Background

Digital and leg ulcers are extremely painful, hard to heal manifestations of systemic sclerosis (SSc). Many treatments have been tried for these challenging complications, but use of hyperbaric oxygen therapy (HBOT) is very limited. HBOT has been used as an adjunctive therapy for treating chronic wounds, and nonhealing SSc wounds, which have a hypoxic nature, may also benefit from it.

Methods

This is a retrospective analysis of six SSc patients who underwent HBOT for their ulcers. Patient demographics, ulcer properties, and details of treatments were evaluated.

Results

Three patients had digital ulcers, and the other three had leg ulcers. Three patients (two leg ulcers and one digital ulcer) had bilateral lesions. All patients had been treated for at least one and a half months with various modalities. After HBOT was applied, four patients' ulcers healed completely and two patients had near-complete healing. Amputation was not required for any.

Conclusion

This case series, which has the largest patient population up to present, shows adjunctive HBOT may be helpful in the treatment of SSc ulcers.



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Accelerated nail growth rate in HIV patients

Abstract

Background

Many factors have been noted to alter the growth rate of both finger and toe nails, some with harder evidence than others. Infectious diseases are among the ones reported as slowing the growth rate. However, on previous studies we noticed that patients living with HIV and onychomycosis could be cured without the use of antifungal therapy, only with the immunological improvement provided by the combined antiretroviral therapy, and we wanted to prove that the growth rate is also increased in this group and thus probably contributes to the cure of onychomycosis.

Methods

This was an observational, descriptive, and prospective study. We marked with a scalpel the nail plate of the first finger of the non-dominant hand and the same foot, and measured the nail growth in the subsequent medical appointments with a magnifying glass and a millimetric scale.

Results

Thirteen patients completed the study, and were paired with healthy controls by age and gender. After performing Mann-Whitney U test, our results showed statistical significance among both groups, showing that patients with HIV have faster nail growth rates than those in the HIV negative group.

Conclusions

There is little data on HIV nail growth rate to compare our results, but what we see in the clinical practice is that this group of patients shows a faster nail growth rate, as has also been reported for longer eyelashes, and this could be an important factor in the cure rates of onychomycosis.



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Amoxicillin-induced generalized eruption associated with Epstein-Barr virus reactivation in pregnancy



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Pediatric pyoderma gangrenosum: a systematic review and update

Abstract

Pyoderma gangrenosum (PG) is a sterile neutrophilic disorder that rarely affects children. Clinical, epidemiological, and therapeutic data on pediatric PG is poor as there are many newly reported associated diseases and drugs. This paper aims to review all recent available data on pediatric PG. A systematic review of the literature was conducted using Embase, Medline, and Cochrane databases. A total of 132 articles were included in the review. The most commonly reported underlying diseases in pediatric PG are inflammatory bowel diseases followed by hematologic disorders, vasculitis, immune deficiencies and Pyogenic Arthritis, Pyoderma gangrenosum and Acne (PAPA) syndrome. More than half of the cases occur with no underlying disease. The most frequently reported clinical presentation is multiple disseminated ulcers. Treatment should be tailored according to the underlying etiology. It includes systemic steroids, corticosteroid sparing agents such as dapsone and cyclosporine, and TNF-alpha inhibitors such as adalimumab and infliximab. Response to treatment is high with cure rates reaching 90%. A high index of suspicion and a thorough workup are mandatory in the management of pediatric PG.



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Leprosy in Puerto Rico: insight into the new millennia

Abstract

Background

Leprosy, or Hansen's disease, is a chronic infectious disease caused by the bacillus Mycobacterium leprae. In 2000, the World Health Organization (WHO) defined the elimination of the disease as a global prevalence of less than one case per 10,000 population. However, disease transmission is an ongoing worldwide public health concern, as evidenced by the more than 220,000 new cases diagnosed each year.

Methods

This study is an update of the incidence and prevalence of leprosy in Puerto Rico for the period of 2000–2014. A retrospective analysis of data was obtained from the Tropical Disease Clinic (TDC) of the University of Puerto Rico School of Medicine.

Results

Sixty-three new cases of leprosy are detailed in this study. Disease incidence and prevalence were 1.65 and 5.26 per 100,000 inhabitants (of the island of Puerto Rico), respectively, and an average of 4.2 new cases per year. Most of the male patients in the study suffered from lepromatous leprosy (P = 0.026). In all, 47 (74.6%) patients had been born in Puerto Rico, and 29 (46%) had an affected family member or were in close contact with someone with leprosy.

Conclusions

Compared to those of previous studies, these results demonstrate a decrease in both the incidence and prevalence of leprosy in Puerto Rico over the past 15 years. The relatively high prevalence of leprosy in Puerto Rico means that it remains endemic on the island. Concerted efforts must be undertaken to achieve the goal of the elimination of this old and stigmatized disease.



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Common Carotid Artery Diameter, Blood Flow Velocity and Wave Intensity Responses at Rest and during Exercise in Young Healthy Humans: A Reproducibility Study

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Publication date: Available online 23 February 2017
Source:Ultrasound in Medicine & Biology
Author(s): Nicola Pomella, Eurico Nestor Wilhelm Neto Wilhelm, Christina Kolyva, José González-Alonso, Mark Rakobowchuk, Ashraf W. Khir
The aim of this study was to assess the reproducibility of non-invasive, ultrasound-derived wave intensity (WI) in humans at the common carotid artery. Common carotid artery diameter and blood velocity of 12 healthy young participants were recorded at rest and during mild cycling, to assess peak diameter, change in diameter, peak velocity, change in velocity, time derivatives, non-invasive wave speed and WI. Diameter, velocity and WI parameters were fairly reproducible. Diameter variables exhibited higher reproducibility than corresponding velocity variables (intra-class correlation coefficient [ICC] = 0.79 vs. 0.73) and lower dispersion (coefficient of variation [CV] = 5% vs. 9%). Wave speed had fair reproducibility (ICC = 0.6, CV = 16%). WI energy variables exhibited higher reproducibility than corresponding peaks (ICC = 0.78 vs. 0.74) and lower dispersion (CV = 16% vs. 18%). The majority of variables had higher ICCs and lower CVs during exercise. We conclude that non-invasive WI analysis is reliable both at rest and during exercise.



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Biochemical Basis for Increased Activity of Ebola Glycoprotein in the 2013–16 Epidemic

Publication date: Available online 23 February 2017
Source:Cell Host & Microbe
Author(s): May K. Wang, Sun-Young Lim, Soo Mi Lee, James M. Cunningham
Ebola virus (EBOV) infection is characterized by sporadic outbreaks caused by zoonotic transmission. Fixed changes in amino acid sequence, such as A82V in the EBOV glycoprotein (GP) that occurred early in the 2013–16 epidemic, are suspected to confer a selective advantage to the virus. We used biochemical assays of GP function to show that A82V, as well as a polymorphism in residue 544 identified in other outbreaks, enhances infection by decreasing the threshold for activation of membrane fusion activity triggered by the host factors cathepsin B and Niemann-Pick C1. Importantly, the increase in infectivity comes with the cost of decreased virus stability. Thus, emergence of a virus GP with altered properties that can affect transmission and virulence may have contributed to the severity and scope of the 2013–16 EBOV epidemic.

Graphical abstract

image

Teaser

A fixed A82V polymorphism in the EBOV glycoprotein that occurred early in the 2013–16 epidemic is suspected to confer a selective advantage. Wang et al. show that A82V and another polymorphism from other outbreaks confers increased EBOV infectivity and decreased host entry factor dependency, at the cost of decreased virus stability.


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Salmonella enterica Remodels the Host Cell Endosomal System for Efficient Intravacuolar Nutrition

Publication date: Available online 23 February 2017
Source:Cell Host & Microbe
Author(s): Viktoria Liss, A. Leoni Swart, Alexander Kehl, Natascha Hermanns, Yuying Zhang, Deepak Chikkaballi, Nathalie Böhles, Jörg Deiwick, Michael Hensel
Salmonella enterica is a facultative intracellular pathogen that survives and proliferates in the Salmonella-containing vacuole (SCV), yet how these vacuolar bacteria acquire nutrition remains to be determined. Intracellular Salmonella convert the host endosomal system into an extensive network of interconnected tubular vesicles, of which Salmonella-induced filaments (SIFs) are the most prominent. We found that membranes and lumen of SIFs and SCVs form a continuum, giving vacuolar Salmonella access to various types of endocytosed material. Membrane proteins and luminal content rapidly diffuse between SIFs and SCVs. Salmonella in SCVs without connection to SIFs have reduced access to endocytosed components. On a single-cell level, Salmonella within the SCV-SIF continuum were found to exhibit higher metabolic activity than vacuolar bacteria lacking SIFs. Our data demonstrate that formation of the SCV-SIF continuum allows Salmonella to bypass nutritional restriction in the intracellular environment by acquiring nutrients from the host cell endosomal system.

Graphical abstract

image

Teaser

The intracellular proliferation of the vacuolar pathogen Salmonella enterica depends on conversion of the host endosomal system into a network of interconnected tubular vesicles. Liss et al. use single-cell analyses to reveal a role for this tubular network in conveying nutrients from the host endosomal system to vacuolar bacteria.


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It's Time to Earn the Public's Trust.

Author: Kennedy, Maureen Shawn MA, RN, FAAN
Page: 7


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Just a Nurse, or a Bedside Leader?.

Author: Costanzo, Amy J. MSN, RN-BC
Page: 11


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Speaking Up for Patients.

Author: Holder, Jacqueline RN
Page: 13


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Reducing SIDS.

Author: Fife, Patricia MPA, RN
Page: 13


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Stop the Eye Rolling.

Author: P., Marcy
Page: 13


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Stop the Eye Rolling.

Author: Moffa, Nurse
Page: 13


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Stop the Eye Rolling.

Author: H-J., Paul
Page: 13


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Stop the Eye Rolling.

Author: L.G., Stormy
Page: 13


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VA Grants Most APRNs Full Practice Authority.

Author: Sofer, Dalia
Page: 14


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Benefits of Kangaroo Care for Premature Babies Continue into Young Adulthood.

Author: Stockwell, Serena
Page: 15


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NewsCAP: More nurse training results in fewer pressure ulcers in German hospitals.

Author:
Page: 15


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Rollback of Michigan's Motorcycle Helmet Law Results in More Head Injuries.

Author: Halpern, Lucy Wang
Page: 16


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NewsCAP: New Web site allows consumer comparisons of rehabilitation facilities.

Author:
Page: 16


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NewsCAP: A new vaccine against Ebola may be effective and safe to use in an outbreak.

Author:
Page: 16


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Inadequate Handwashing Practices in Childcare Facilities.

Author: Potera, Carol
Page: 17


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Rural Pregnant Women and Newborns Hit Hard by Opioid Crisis.

Author: Stockwell, Serena
Page: 17


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Trends in U.S. Health Care.

Author:
Page: 18


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Do NPs Need Postgraduate Residencies?.

Author: Nelson, Roxanne
Page: 19-20


http://ift.tt/2l697O3

AJN On the Cover.

Author: Szulecki, Diane associate editor
Page: 21


http://ift.tt/2kT1sHN

AJN On the Web.

Author:
Page: 21


http://ift.tt/2l6cuEJ

In situ heart valve tissue engineering using a bioresorbable elastomeric implant – From material design to 12 months follow-up in sheep

Publication date: May 2017
Source:Biomaterials, Volume 125
Author(s): Jolanda Kluin, Hanna Talacua, Anthal I.P.M. Smits, Maximilian Y. Emmert, Marieke C.P. Brugmans, Emanuela S. Fioretta, Petra E. Dijkman, Serge H.M. Söntjens, Renée Duijvelshoff, Sylvia Dekker, Marloes W.J.T. Janssen-van den Broek, Valentina Lintas, Aryan Vink, Simon P. Hoerstrup, Henk M. Janssen, Patricia Y.W. Dankers, Frank P.T. Baaijens, Carlijn V.C. Bouten
The creation of a living heart valve is a much-wanted alternative for current valve prostheses that suffer from limited durability and thromboembolic complications. Current strategies to create such valves, however, require the use of cells for in vitro culture, or decellularized human- or animal-derived donor tissue for in situ engineering. Here, we propose and demonstrate proof-of-concept of in situ heart valve tissue engineering using a synthetic approach, in which a cell-free, slow degrading elastomeric valvular implant is populated by endogenous cells to form new valvular tissue inside the heart. We designed a fibrous valvular scaffold, fabricated from a novel supramolecular elastomer, that enables endogenous cells to enter and produce matrix. Orthotopic implantations as pulmonary valve in sheep demonstrated sustained functionality up to 12 months, while the implant was gradually replaced by a layered collagen and elastic matrix in pace with cell-driven polymer resorption. Our results offer new perspectives for endogenous heart valve replacement starting from a readily-available synthetic graft that is compatible with surgical and transcatheter implantation procedures.

Graphical abstract

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Orthogonal near-infrared upconversion co-regulated site-specific O2 delivery and photodynamic therapy for hypoxia tumor by using red blood cell microcarriers

Publication date: May 2017
Source:Biomaterials, Volume 125
Author(s): Peiyuan Wang, Xiaomin Li, Chi Yao, Wenxing Wang, Mengyao Zhao, Ahmed Mohamed El-Toni, Fan Zhang
Pre-existing hypoxia in tumors can result in an inadequate oxygen supply during photodynamic therapy (PDT), which in turn hampers photodynamic efficacy. To overcome this problem, we developed an orthogonal near-infrared upconversion controlled red blood cell (RBC) microcarriers to selectively deliver O2 in hypoxia area. Moreover, this RBC microcarriers are able to overcome a series of complex biological barriers which include transporting across the inflamed endothelium, evading mononuclear phagocyte system, reducing reticuloendothelial system uptake. Based on these abilities, RBC microcarriers have efficient tumors accumulation and are capable of delivery a large amount of O2 for PDT under near-infrared (NIR) irradiation to realize effective solid tumor eradication.

Graphical abstract

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Der physiologische und der pathologische Schluckvorgang

Zusammenfassung

In Deutschland leiden derzeit schätzungsweise 5 Mio. Menschen an einer Schluckstörung. Diese Zahl wird voraussichtlich aufgrund der längeren Lebenserwartung, aber auch durch das vermehrte Überleben von extrem Frühgeborenen noch zunehmen. Diagnostisch wird ausgehend von den 4 Schluckphasen zunächst analysiert, ob ein anatomisch-organisches oder ein funktionelles Hindernis vorliegt. Dazu gehört die Erhebung einer ausführlichen Anamnese und die Untersuchung der Hirnnervenfunktionen, des orofazialen Bereichs, der Schluckreflexe, des pharyngealen und des ösophagealen Transportwegs. Es wird auf altersabhängige Variationen des Schluckvorgangs, nasale Regurgitation, Retentionen im Zungengrund und Hypopharynx oder Anzeichnen für eine Aspiration geachtet.



http://ift.tt/2mrkHo9

Der physiologische und der pathologische Schluckvorgang

Zusammenfassung

In Deutschland leiden derzeit schätzungsweise 5 Mio. Menschen an einer Schluckstörung. Diese Zahl wird voraussichtlich aufgrund der längeren Lebenserwartung, aber auch durch das vermehrte Überleben von extrem Frühgeborenen noch zunehmen. Diagnostisch wird ausgehend von den 4 Schluckphasen zunächst analysiert, ob ein anatomisch-organisches oder ein funktionelles Hindernis vorliegt. Dazu gehört die Erhebung einer ausführlichen Anamnese und die Untersuchung der Hirnnervenfunktionen, des orofazialen Bereichs, der Schluckreflexe, des pharyngealen und des ösophagealen Transportwegs. Es wird auf altersabhängige Variationen des Schluckvorgangs, nasale Regurgitation, Retentionen im Zungengrund und Hypopharynx oder Anzeichnen für eine Aspiration geachtet.



http://ift.tt/2mrkHo9

Likelihood of Immediate Food Challenge Reactions Varies by Age, History, Allergens, and Levels of Sensitization

Pediatric Allergy, Immunology, and Pulmonology , Vol. 0, No. 0.


http://ift.tt/2mdN0KL

Alveolar Macrophages in Allergic Asthma: the Forgotten Cell Awakes

Abstract

Purpose of Review

The role of alveolar macrophages in innate immune responses has long been appreciated. Here, we review recent studies evaluating the participation of these cells in allergic inflammation.

Recent Findings

Immediately after allergen exposure, monocytes are rapidly recruited from the bloodstream and serve to promote acute inflammation. By contrast, resident alveolar macrophages play a predominantly suppressive role in an effort to restore homeostasis. As inflammation becomes established after repeated exposures, alveolar macrophages can polarize across a continuum of activation phenotypes, losing their suppressive functions and gaining pathogenic functions.

Summary

Future research should focus on the diverse roles of monocytes/macrophages during various types and phases of allergic inflammation. These properties could lead us to new therapeutic opportunities.



http://ift.tt/2lwWLly

Phenotype-Driven Therapeutics in Severe Asthma

Abstract

Inhaled corticosteroids are the mainstay of asthma treatment using a step-up approach with incremental dosing and additional controller medications in order to achieve symptom control and prevent exacerbations. While most patients respond well to this treatment approach, some patients remain refractory despite high doses of inhaled corticosteroids and a long-acting β-agonist. The problem lies in the heterogeneity of severe asthma, which is further supported by the emergence of severe asthma phenotypes. This heterogeneity contributes to the variability in treatment response. Randomized controlled trials involving add-on therapies in poorly controlled asthma have challenged the idea of a "one size fits all" approach targeting specific phenotypes in their subject selection. This review discusses severe asthma phenotypes from unbiased clustering approaches and the most recent scientific evidence on novel treatments to provide a guide in personalizing severe asthma treatment.



http://ift.tt/2mikS5N

Contemporary Use of Corticosteroids in Rhinology

Abstract

Purpose of Review

Exogenously administered corticosteroids are widely used today in the field of rhinology. Allergic rhinitis (AR), non-allergic rhinitis (NAR), acute rhinosinusitis (ARS), chronic rhinosinusitis with (CRSwNP) and without (CRSsNP) nasal polyps, and autoimmune disorders with nasal manifestations are common diseases treated effectively with intranasal and oral glucocorticoids. We focus on physiological pathways, therapeutic benefits, indications, contra-indications, and side effects of glucocorticoid utilization in the treatment of rhinologic disorders such as AR, NAR, ARS, CRSsNP, and CRSwNP.

Recent Findings

Second-generation intranasal steroid (INS) agents have pharmacokinetic characteristics that minimize their systemic bioavailability, resulting in minimum risk for systemic adverse events. Several studies have demonstrated the symptomatic efficacy of both intranasal and oral corticosteroids in ARS. Moreover, intranasal and systemic steroid administration has been repeatedly proven beneficial in the conservative and perioperative management of CRSwNP. For patients with AR, there is no need for oral steroids, with the exception of severe cases, as there is lack of superiority to INS. SCUAD patients challenge currently available treatment schemes, underlining the importance of research in the field.

Summary

Corticosteroids' effectiveness in the treatment of various rhinologic disorders is indisputable. However, their characteristics, and potential side effects, make a clear consensus for utilization difficult.



http://ift.tt/2lwZhZc

Effects of Allergic Sensitization on Antiviral Immunity: Allergen, Virus, and Host Cell Mechanisms

Abstract

Purpose of Review

Multiple clinical and epidemiological studies demonstrate links between allergic sensitization and virus-induced atopic disease exacerbations. This review summarizes the recent findings regarding allergen, viral, and host cellular mechanisms relevant to these observations.

Recent Findings

Recent studies have focused on the molecular pathways and genetic influences involved in allergen-mediated inhibition of innate antiviral immune responses. Multiple tissue and cell types from atopic individuals across the atopy spectrum exhibit deficient interferon responses to a variety of virus infections. Impairment in barrier function, viral RNA and DNA recognition by intracellular sensing molecules, and dysregulation of signaling components are broadly affected by allergic sensitization. Finally, genetic predisposition by numerous nucleotide polymorphisms also impacts immune pathways and potentially contributes to virus-associated atopic disease pathogenesis.

Summary

Allergen-virus interactions in the setting of atopy involve complex tissue and cellular mechanisms. Future studies defining the pathways underlying these interactions could uncover potential therapeutic targets. Available data suggest that therapies tailored to restore specific components of antiviral responses will likely lead to improved clinical outcomes in allergic disease.



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Immunoprofiling as a predictor of patient’s response to cancer therapy—promises and challenges

Daniel Bethmann | Zipei Feng | Bernard A Fox

http://ift.tt/2lQqfvF

Comparison of digital panoramic radiography versus cone beam computerized tomography for measuring alveolar bone

Cone beam computerized tomography (CBCT) has been widely used in dental implanting. However, the local hospitals usually don't have access to CBCT due to the cost and medical investment, especially in West of ...

http://ift.tt/2mr4CPt

Sensitivity of various body indices and visceral adiposity index in predicting metabolic syndrome among Chinese patients with adult growth hormone deficiency

Abstract

Aim

Adult growth hormone deficiency (AGHD) refers to decreased secretion of growth hormones in the adults, which is associated with increased clustering of conventional cardiovascular risk factors such as central obesity, insulin resistance and dyslipidemia. Metabolic syndrome (MetS), a recognized risk factor of cardiovascluar diseases, shares some clinical features. Given that the prevalence of MetS is on the rise in patients with AGHD, and that cardiovascular disease (CVD) is an important cause of morbidity and mortality in that population, the alternative, simple, non-invasive methods of assessing MetS among this population are needed. This study aims to determine the sensitivity of five anthropometric indices [Body mass index (BMI), Waist circumference (WC), Waist-to-hip ratio (WHR), Waist-to-height ratio (WHtR) and Visceral adiposity index (VAI)] in predicting metabolic syndrome in Chinese population-based patients with adult growth hormone deficiency.

Materials and methods

A total of 96 Chinese patients with adult growth hormone deficiency were included in this study. They were compared with equal number of apparently healthy persons with similar characteristics (matched with age and gender) to the previous group. Anthropometric measurements including weight, height, serum lipids indices, blood pressure (BP), fasting plasma glucose (FPG), WC were measured. BMI, WHR, WHtR, and VAI were calculated.

Results and discussion

AGHD patients with MetS had higher WC (91.00 ± 8.28 vs 78.01 ± 7.12), BMI (24.95 ± 2.91 VS 23.30 ± 2.80), WHR (0.92 ± 0.06 VS 0.87 ± 0.07), WHtR (0.53 ± 0.06 VS 0.47 ± 0.05), VAI [(5.59 (4.02, 7.55) VS 1.69 (0.87, 3.05)] levels in comparison to those without MetS. Meantime WC, BMI, WHR, WHtR, VAI was positively correlated to MetS components. ROC curve for participants with AGHD showed that VAI had the highest SS of 92% (BMI 0.812; WHR 0.706; WHtR 0.902; VAI 0.920, respectively) for prediction of MetS in AGHD. The optimal cutoff values for different adiposity markers in predicting MetS were as follows: WC (79.65), BMI (23.46); WHR (0.89); WHtR (0.54); VAI (2.29).

Conclusion

In conclusion, our study showed all adiposity measures of interest present themselves as easy and practical tools for use in population studies and clinical practice for evaluating MetS in AGDH and VAI was identified as the best in Chinese AGHD patients among them.



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Multidisciplinary Management of Breast Cancer During Pregnancy

Background.

Although breast cancer during pregnancy (BCDP) is rare (occurring with only 0.4% of all BC diagnoses in female patients aged 16–49 years), management decisions are challenging to both the patient and the multidisciplinary team.

Materials and Methods.

Experts in breast cancer at the University of North Carolina conducted a targeted literature search regarding the multidisciplinary treatment approaches to BCDP: medical, surgical, and radiation oncology. Supportive care, including antiemetic agents, and imaging approaches were also reviewed.

Results.

Review of the literature revealed key points in the management of BCDP. Surgical management is similar to that in nonpregnant patients; pregnant patients may safely undergo breast-conserving surgery. Recommendations should be tailored to the individual according to the clinical stage, tumor biology, genetic status, gestational age, and personal preferences. Anthracycline-based chemotherapy can be safely initiated only in the second and third trimesters. The rate of congenital abnormalities in children exposed to chemotherapy is similar to the national average (approximately 3%). Dosing of chemotherapy should be similar to that in the nonpregnant patient (i.e., actual body surface area). Antihuman epidermal growth factor receptor 2 therapy, radiation, and endocrine treatment are contraindicated in pregnancy and lactation. Care should include partnership with obstetricians. The literature regarding prognosis of BCDP is mixed.

Conclusion.

To maximize benefit and minimize risk to the mother and fetus, an informed discussion with the patient and her medical team should result in an individualized treatment plan, taking into account the timing of the pregnancy and the stage and subtype of the breast cancer. Because BCDP is rare, it is essential to collect patient data in international registries. The Oncologist 2017;22:1–11

Implications for Practice.

Breast cancer during pregnancy is a major ethical and professional challenge for both the patient and the multidisciplinary treatment team. Although the oncologic care is based on that of the non-pregnant breast cancer patient, there are many challenges from regarding the medical, surgical and radiation oncology and obstetrical aspects of care that need to be considered to deliver the safest and best treatment plan to both the mother and developing fetus.



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Stage IV Gastro-Entero-Pancreatic Neuroendocrine Neoplasms: A Risk Score to Predict Clinical Outcome

Background.

Several risk factors predict clinical outcome in gastro-entero-pancreatic neuroendocrine neoplasms (GEP-NENs); however, the impact of their combination has not been investigated so far.

Patients and Methods.

A retrospective analysis of stage IV GEP-NENs was performed. Multivariate analysis for progression of disease (PD) was performed by Cox proportional hazards method to obtain a risk score. Area under the curve obtained by receiver operating characteristic analysis was used to assess the score performance. Progression-free survival analysis was performed by Kaplan-Meier method.

Results.

Two hundred eighty-three stage IV GEP-NENs were evaluated, including 93 grade 1 neuroendocrine tumors (32.9%), 153 grade 2 neuroendocrine tumors (54%), and 37 grade 3 neuroendocrine carcinomas (13.1%). Independent risk factors for PD were Ki67, proportion of metastatic liver involvement, and presence of extra-abdominal metastases. The risk score was calculated as follows: (0.025 x Ki67) + [(0 if no liver metastases or liver involvement <25%) OR (0.405 if liver involvement 25%–50%) OR (0.462 if liver involvement >50%)] + [(0 if no extra-abdominal metastases) OR (0.528 if extra-abdominal metastases present)]. The risk score accuracy to predict PD was superior compared with the G grading system (area under the curve: 0.705 and 0.622, respectively). Three subgroups of patients with low, intermediate, and high risk of PD according to risk score were identified, median progression-free survival being 26 months, 19 months, and 12 months, respectively.

Conclusion.

In stage IV GEP-NENs, a risk score able to predict PD was obtained by combining Ki67, proportion of metastatic liver involvement, and presence of extra-abdominal metastases. The score may help to discriminate patients with different progression risk level to plan tailored therapeutic approaches and follow-up programs. The Oncologist 2017;22:000–000

Implications for Practice: Clinical outcome of patients with advanced gastro-entero-pancreatic neuroendocrine neoplasms is affected by several risk factors, including the proliferative index Ki67, extension of liver metastases, and the presence of distant extra-abdominal lesions. A risk score that combines these variables may help physicians dealing with these diseases to plan the optimal therapeutic approach and follow-up program.



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Escalating Health Care Expenditures in Cancer Decedents Last Year of Life: A Decade of Evidence from a Retrospective Population-Based Cohort Study in Taiwan

Background.

No population-based longitudinal studies on end-of-life (EOL) expenditures were found for cancer decedents.

Methods.

This population-based, retrospective cohort study examined health care expenditures from 2001 to 2010 among 339,546 Taiwanese cancer decedents' last year of life. Individual patient-level data were linked from administrative datasets. Health care expenditures were converted from Taiwan dollars to U.S. dollars by health-specific purchasing power parity conversions to account for different health-purchasing powers. Associations of patient, physician, hospital, and regional factors with EOL care expenditures were evaluated by multilevel linear regression model by generalized estimating equation method.

Results.

Mean annual EOL care expenditures for Taiwanese cancer decedents increased from 2000 to 2010 from U.S. $49,591 to U.S. $68,773, respectively, with one third of spending occurring in the patients' last month. Increased EOL care expenditures were associated with male gender, younger age, being married, diagnosed with hematological malignancies and cancers other than lung, gastric, and hepatic-pancreatic cancers, and dying within 7–24 months of diagnosis. Patients spent less at EOL when they had higher comorbidities and metastatic disease, died within 6 months of diagnosis, were under care of oncologists, gastroenterologists, and intensivists, and received care at a teaching hospital with more terminally ill cancer patients. Higher EOL care expenditures were associated with greater EOL care intensity at the primary hospital and regional levels.

Conclusion.

Taiwanese cancer decedents consumed considerable National Health Insurance disbursements at EOL, totaling more than was consumed in six developed non-U.S. countries surveyed in 2010. To slow increasing cost and improve EOL cancer care quality, interventions to ensure appropriate EOL care provision should target hospitals and clinicians less experienced in providing EOL care and those who tend to provide aggressive EOL care to high-risk patients. The Oncologist 2017;22:1–10

Implications for Practice.

Cancer-care costs are highest during the end-of-life (EOL) period for cancer decedents. This population-based study longitudinally examined EOL expenditures for cancer decedents. Mean annual EOL-care expenditures for Taiwanese cancer decedents increased from U.S. $49,591 to U.S. $68,773 from the year 2000 to 2010, with one third of spending in patients' last month and more than for six developed non-U.S. countries surveyed in 2010. To slow the increasing cost of EOL-cancer care, interventions should target hospitals/clinicians less experienced in providing EOL care, who tend to provide aggressive EOL care to high-risk patients, to avoid the physical suffering, emotional burden, and financial costs of aggressive EOL care.



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FDA Approval Summary: Nivolumab in Advanced Renal Cell Carcinoma After Anti-Angiogenic Therapy and Exploratory Predictive Biomarker Analysis

On November 23, 2015, the U.S. Food and Drug Administration approved nivolumab (OPDIVO, Bristol-Myers Squibb Company) for patients with advanced renal cell carcinoma (RCC) who have received prior anti-angiogenic therapy. The approval was based on efficacy and safety data demonstrated in an open-label, randomized study of 821 patients with advanced RCC who progressed after at least one anti-angiogenic therapy. Patients were randomized to nivolumab or everolimus and followed for disease progression. The primary end point was overall survival. Subsequent therapies, including everolimus for patients who developed progressive disease on the nivolumab arm, were allowed, but no cross-over was permitted. The median overall survival was 25.0 months on the nivolumab arm and 19.6 months on everolimus arm (hazard ratio: 0.73; 95% confidence interval: 0.60–0.89). The confirmed response rates were 21.5% versus 3.9%; median durations of response were 23.0 versus 13.7 months, and median times to response were 3.0 versus 3.7 months in the nivolumab and everolimus arms, respectively. A statistically significant improvement in progression-free survival was not observed in this trial. The safety profile of nivolumab in renal cell cancer was similar to that in other disease settings. However, the incidence of immune-mediated nephritis appeared to be higher in patients with RCC. The Oncologist 2017;22:1–7

Implications for Practice: The overall benefit/risk profile demonstrated in trial CA209025 supported the approval of nivolumab as an additional treatment option for patients with advanced renal cell carcinoma after anti-angiogenic therapy. The use of nivolumab in patients who had received vascular endothelial growth factor-targeted therapy resulted in a 5.4 month improvement in median overall survival compared with the everolimus arm. This difference is statistically significant and clinically meaningful.



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Likelihood of Immediate Food Challenge Reactions Varies by Age, History, Allergens, and Levels of Sensitization

Pediatric Allergy, Immunology, and Pulmonology , Vol. 0, No. 0.


http://ift.tt/2lfnsZH

Likelihood of Immediate Food Challenge Reactions Varies by Age, History, Allergens, and Levels of Sensitization

Pediatric Allergy, Immunology, and Pulmonology , Vol. 0, No. 0.


http://ift.tt/2lfnsZH

Identification of potential therapeutic target genes, key miRNAs and mechanisms in oral lichen planus by bioinformatics analysis

Publication date: June 2017
Source:Archives of Oral Biology, Volume 78
Author(s): Cuihua Gong, Shangtong Sun, Bing Liu, Jing Wang, Xiaodong Chen
The study aimed to identify the potential target genes and key miRNAs as well as to explore the underlying mechanisms in the pathogenesis of oral lichen planus (OLP) by bioinformatics analysis. The microarray data of GSE38617 were downloaded from Gene Expression Omnibus (GEO) database. A total of 7 OLP and 7 normal samples were used to identify the differentially expressed genes (DEGs) and miRNAs. The DEGs were then performed functional enrichment analyses. Furthermore, DEG-miRNA network and miRNA-function network were constructed by Cytoscape software. Total 1758 DEGs (598 up- and 1160 down-regulated genes) and 40 miRNAs (17 up- and 23 down-regulated miRNAs) were selected. The up-regulated genes were related to nuclear factor-Kappa B (NF-κB) signaling pathway, while down-regulated genes were mainly enriched in the function of ribosome. Tumor necrosis factor (TNF), caspase recruitment domain family, member 11 (CARD11) and mitochondrial ribosomal protein (MRP) genes were identified in these functions. In addition, miR-302 was a hub node in DEG-miRNA network and regulated cyclin D1 (CCND1). MiR-548a-2 was the key miRNA in miRNA-function network by regulating multiple functions including ribosomal function. The NF-κB signaling pathway and ribosome function may be the pathogenic mechanisms of OLP. The genes such as TNF, CARD11, MRP genes and CCND1 may be potential therapeutic target genes in OLP. MiR-548a-2 and miR-302 may play important roles in OLP development.



http://ift.tt/2lftnO5

Targeting NK-cell checkpoints for cancer immunotherapy

Publication date: April 2017
Source:Current Opinion in Immunology, Volume 45
Author(s): Aura Muntasell, Maria C Ochoa, Luna Cordeiro, Pedro Berraondo, Ascension López-Díaz de Cerio, Mariona Cabo, Miguel López-Botet, Ignacio Melero
Natural Killer (NK) cells are cytotoxic lymphocytes specialized in early defense against virus-infected and transformed cells. NK-cell function is regulated by activating and inhibitory surface receptors recognizing their ligands on transformed cells. Modulation of NK numbers and/or function by a variety of agents such as cytokines and monoclonal antibodies may result in enhanced anti-tumor activity. Recombinant cytokines (i.e., IL-15 and IL-2), antibodies blocking inhibitory receptors (i.e., KIR, NKG2A and TIGIT) and agonists delivering signals via CD137, NKG2D and CD16 stand out as the most suitable opportunities. These agents can be used to potentiate NKcell- mediated antibody-dependent cellular cytotoxicity (ADCC) against antibody-coated tumor cells, offering potential for multiple combinatorial immunotherapy strategies against cancer.



http://ift.tt/2lLEh1n

Fluid origin and migration of the Huangshaping W–Mo polymetallic deposit, South China: Geochemistry and 40Ar/39Ar geochronology of hydrothermal K-feldspars

Publication date: June 2017
Source:Ore Geology Reviews, Volume 86
Author(s): Huan Li, Kotaro Yonezu, Koichiro Watanabe, Thomas Tindell
The Huangshaping deposit is a world-class W–Mo–Pb–Zn–Cu polymetallic deposit that formed during the Jurassic magmatic event in the central Nanling region, South China. In order to reveal the three-dimensional development of mineralization and alteration in this complicated fluid-rock system, four typical hydrothermal K-feldspar samples were collected from potassic alteration zones at different elevation levels around main W–Mo ore bodies, followed by precise trace element analysis and 40Ar/39Ar dating. The results show that these K-feldspars have a pronounced lanthanide tetrad effect with high contents of Ga, Ta, Nb, U, Y and HREE but low concentrations of Ba, Sr, Eu and Zr, suggesting a hydrothermal origin. Additionally, correlation between the Ca/Cl/K ratios and the apparent ages suggest that metasomatic fluids played an important role in the formation of the hydrothermal K-feldspars. The plateau 40Ar/39Ar ages which represent the timing of potassic alteration vary from 152.9±0.5 to 154.3±0.6Ma, spatially showing younger trends from north to south and from shallow to deep. These dates correspond to the previous published molybdenite Re–Os data variations in different elevation levels, which record the mineralization event with relatively older ages ranging from 153.8 to 159.4Ma. Combined with the spatial relation analysis among samples, the fluid migration rates associated with the mineralization and alteration are calculated at 10–100mMa−1. Thus, we propose a fluid downward migration model for the Huangshaping polymetallic deposit.

Graphical abstract

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Hydrogenolysis of glycerol over Ni, Cu, Zn, and Zr supported on H-beta

Publication date: 1 June 2017
Source:Chemical Engineering Journal, Volume 317
Author(s): Amit Kant, Yingxin He, Abbas Jawad, Xin Li, Fateme Rezaei, Joseph D. Smith, Ali A. Rownaghi
A series of transition metal oxides (e.g., Ni, Cu, Zn, and Zr) were supported on H-beta with loading of 5–20wt% via wet impregnation. These catalysts were evaluated in the hydrogenolysis of glycerol under aqueous conditions at different reaction temperatures (150–250°C), times (5–15h) and H2 pressures (300–1200psi). The results from characterization of materials by XRD, FT-IR, N2 sorption and NH3-TPD together with the results from the activity test allowed further understanding of the role of transition metals and acid sites on hydrogenolysis of glycerol. The H-beta was found to contain higher Brønsted acidity and catalyst activity compared to those supported metal catalysts. It was found that the acidic properties of the H-Beta zeolite and metal content play a significant role on the final product distribution. The major product over bare H-beta and Zr/H-beta was 1-proponal, while the concentration of 1,2-propanediol and 1,3-propanediol increased significantly by the incorporation of a second metal oxide. A high 1,3-propanediol selectivity of 14% was obtained over the H-beta supported Ni-Zr catalyst at 73% glycerol conversion. The selectivity of 1,2-propanediol and 1,3-propanediol were decreased at higher reaction temperature and time.

Graphical abstract

image


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Global and local investigations of the electrochemical behavior the T6 heat treated Mg–Zn–RE magnesium alloy thixo-cast

Publication date: 31 May 2017
Source:Applied Surface Science, Volume 405
Author(s): Zbigniew Szklarz, Magdalena Bisztyga, Halina Krawiec, Lidia Lityńska-Dobrzyńska, Łukasz Rogal
The influence of semi-solid metal processing (SSM called also as thixoforming) of ZE41A magnesium alloy on the electrochemical behavior in 0.1M NaCl solution was investigated. To describe the corrosion behavior of ZE41A alloy, the electrochemical measurements were conducted in global and local scale for two types of specimens: (1) ingot-feedstock, (2) specimen after thixoforming and T6 treatment. The heat treatment and thixoforming significantly improved mechanical properties of ZE41A alloy. The global corrosion potential is slightly higher for treated sample what is related to the presence of Zr–Zn nanoparticles distributed in solid solution. The corrosion behavior differences between feedstock and thixo-cast after T6 samples are also visible in local scale, what has been revealed by using microcapillary technique. However there is no improvement in corrosion behavior after treatment. Corrosion morphology of the treated sample indicate higher susceptibility to pitting and filiform corrosion. Corrosion rate is also slightly higher.



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Alzheimer's disease neuropathologic change, Lewy body disease, and vascular brain injury in clinic- and community-based samples

Publication date: May 2017
Source:Neurobiology of Aging, Volume 53
Author(s): Willa D. Brenowitz, C. Dirk Keene, Stephen E. Hawes, Rebecca A. Hubbard, W.T. Longstreth, Randy L. Woltjer, Paul K. Crane, Eric B. Larson, Walter A. Kukull
We examined the relationships between Alzheimer's disease neuropathologic change (ADNC), Lewy body disease (LBD), and vascular brain injury (VBI) in 2 large autopsy samples. Because findings may differ between study populations, data came from U.S. Alzheimer's Disease Centers contributing to the National Alzheimer's Coordinating Center (n = 2742) and from the population-based Adult Changes in Thought study (n = 499). Regardless of study population, over 50% of participants with ADNC had co-occurring LBD or VBI; the majority of whom had a clinical AD dementia diagnosis prior to death. Overlap of pathologies was similar between studies, especially after standardizing to the distribution of age and dementia status in the Adult Changes in Thought population. LBD, but not VBI, was positively associated with ADNC in both studies. Interestingly, cortical LBD was more common in those with intermediate ADNC compared to low or high ADNC, especially in the National Alzheimer's Coordinating Center (p < 0.001). High prevalence of co-occurring neuropathologies among older adults with dementia has implications for accurate diagnosis of dementia etiologies and development of disease-modifying strategies.



http://ift.tt/2miN3BA

A putative role for anti-Mullerian hormone (AMH) in optimising ovarian reserve expenditure

The mammalian ovary has a finite supply of oocytes, which are contained within primordial follicles where they are arrested in a dormant state. The number of primordial follicles in the ovary at puberty is highly variable between females of the same species. Females that enter puberty with a small ovarian reserve are at risk of a shorter reproductive lifespan, as their ovarian reserve is expected to be depleted faster. One of the roles of anti-Müllerian hormone (AMH) is to inhibit primordial follicle activation, which slows the rate at which the ovarian reserve is depleted. A simple interpretation is that the function of AMH is to conserve ovarian reserve. However, the females with the lowest ovarian reserve and the greatest risk of early reserve depletion have the lowest levels of AMH. In contrast, AMH apparently strongly inhibits primordial follicle activation in females with ample ovarian reserve, for reasons that remain unexplained. The rate of primordial follicle activation determines the size of the developing follicle pool, which in turn, determines how many oocytes are available to be selected for ovulation. This review discusses the evidence that AMH regulates the size of the developing follicle pool by altering the rate of primordial follicle activation in a context-dependent manner. The expression patterns of AMH across life are also consistent with changing requirements for primordial follicle activation in the ageing ovary. A potential role of AMH in the fertility of ageing females is proposed herein.



http://ift.tt/2lxwe81

Mechanisms for PACAP-induced prolactin gene expression in grass carp pituitary cells

In mammals, pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic hormone with diverse functions but its role in prolactin (PRL) regulation is highly controversial. To shed light on Prl regulation by PACAP in fish model, grass carp pituitary cells was used as a model to examine the receptor specificity and signal transduction for PACAP modulation of prl gene expression in the carp pituitary. Using RT-PCR, PACAP-selective PAC1 receptor was detected in carp lactotrophs. In carp pituitary cells, nanomolar doses of PACAP, but not VIP, could elevate Prl secretion and protein production with concurrent rise in prl mRNA and these stimulatory effects were blocked by PACAP antagonist but not VIP antagonist. PACAP-induced prl mRNA expression could be mimicked by activating adenylate cyclase (AC), increasing cAMP level by cAMP analog, or increasing intracellular Ca2+ ([Ca2+]i) by Ca2+ ionophore/voltage-sensitive Ca2+ channel (VSCC) activator. PACAP-induced prl gene expression, however, was attenuated/abolished by suppressing cAMP production, inhibiting PKA activity, blocking [Ca2+]i mobilization and VSCC activation, calmodulin (CaM) antagonism, and inactivation of JNK and CaM Kinase II (CaMK-II). Similar sensitivity to CaM, JNK, and CaMK-II blockade was also noted by substituting cAMP analog for PACAP as the stimulant for prl mRNA expression. These results, as a whole, provide evidence for the first time that (i) PACAP activation of PAC1 receptor expressed in carp lactotrophs could induce Prl synthesis and secretion, and (ii) Prl production induced by PACAP was mediated by upregulation of prl gene expression, presumably via functional coupling of cAMP/PKA-, Ca2+/CaM-, and MAPK-dependent cascades.



http://ift.tt/2lfa5IU

Skeletal muscle insulin resistance: role of mitochondria and other ROS sources

At present, obesity is one of the most important public health problems in the world because it causes several diseases and reduces life expectancy. Although it is well known that insulin resistance plays a pivotal role in the development of type 2 diabetes mellitus (the more frequent disease in obese people) the link between obesity and insulin resistance is yet a matter of debate. One of the most deleterious effects of obesity is the deposition of lipids in non-adipose tissues when the capacity of adipose tissue is overwhelmed. During the last decade, reduced mitochondrial function has been considered as an important contributor to 'toxic' lipid metabolite accumulation and consequent insulin resistance. More recent reports suggest that mitochondrial dysfunction is not an early event in the development of insulin resistance, but rather a complication of the hyperlipidemia-induced reactive oxygen species (ROS) production in skeletal muscle, which might promote mitochondrial alterations, lipid accumulation and inhibition of insulin action. Here, we review the literature dealing with the mitochondria-centered mechanisms proposed to explain the onset of obesity-linked IR in skeletal muscle. We conclude that the different pathways leading to insulin resistance may act synergistically because ROS production by mitochondria and other sources can result in mitochondrial dysfunction, which in turn can further increase ROS production leading to the establishment of a harmful positive feedback loop.



http://ift.tt/2lf51V2

High fat feeding unmasks variable insulin responses in male C57BL/6 mouse substrains

Mouse models are widely used for elucidating mechanisms underlying type 2 diabetes. Genetic background profoundly affects metabolic phenotype; therefore, selecting the appropriate model is critical. Although variability in metabolic responses between mouse strains is now well recognized, it also occurs within C57BL/6 mice, of which several substrains exist. This within-strain variability is poorly understood and could emanate from genetic and/or environmental differences. To better define the within-strain variability, we performed the first comprehensive comparison of insulin secretion from C57BL/6 substrains 6J, 6JWehi, 6NJ, 6NHsd, 6NTac and 6NCrl. In vitro, glucose-stimulated insulin secretion correlated with Nnt mutation status, wherein responses were uniformly lower in islets from C57BL/6J vs C57BL/6N mice. In contrast, in vivo insulin responses after 18 weeks of low fat feeding showed no differences among any of the six substrains. When challenged with a high-fat diet for 18 weeks, C57BL/6J substrains responded with a similar increase in insulin release. However, variability was evident among C57BL/6N substrains. Strikingly, 6NJ mice showed no increase in insulin release after high fat feeding, contributing to the ensuing hyperglycemia. The variability in insulin responses among high-fat-fed C57BL/6N mice could not be explained by differences in insulin sensitivity, body weight, food intake or beta-cell area. Rather, as yet unidentified genetic and/or environmental factor(s) are likely contributors. Together, our findings emphasize that caution should be exercised in extrapolating data from in vitro studies to the in vivo situation and inform on selecting the appropriate C57BL/6 substrain for metabolic studies.



http://ift.tt/2lLwKj2

Reduced metabolism in the hypothalamus of the anorectic anx/anx mouse

The anorectic anx/anx mouse exhibits a mitochondrial complex I dysfunction that is related to aberrant expression of hypothalamic neuropeptides and transmitters regulating food intake. Hypothalamic activity, i.e. neuronal firing and transmitter release, is dependent on glucose utilization and energy metabolism. To better understand the role of hypothalamic activity in anorexia, we assessed carbohydrate and high-energy phosphate metabolism, in vivo and in vitro, in the anx/anx hypothalamus. In the fasted state, hypothalamic glucose uptake in the anx/anx mouse was reduced by ~50% of that seen in wild-type (wt) mice (P < 0.05). Under basal conditions, anx/anx hypothalamus ATP and glucose 6-P contents were similar to those in wt hypothalamus, whereas phosphocreatine was elevated (~2-fold; P < 0.001) and lactate was reduced (~35%; P < 0.001). The anx/anx hypothalamus had elevated total AMPK (~25%; P < 0.05) and GLUT4 (~60%; P < 0.01) protein contents, whereas GLUT1 and GLUT3 were similar to that of wt hypothalamus. Interestingly, the activation state of AMPK (ratio of phosphorylated AMPK/total AMPK) was significantly decreased in hypothalamus of the anx/anx mouse (~60% of that in wt; P < 0.05). Finally, during metabolic stress (ischemia), accumulation of lactate (measure of glycolysis) and IMP and AMP (breakdown products of ATP) were ~50% lower in anx/anx vs wt hypothalamus. These data demonstrate that carbohydrate and high-energy phosphate utilization in the anx/anx hypothalamus are diminished under basal and stress conditions. The decrease in hypothalamic metabolism may contribute to the anorectic behavior of the anx/anx mouse, i.e. its inability to regulate food intake in accordance with energy status.



http://ift.tt/2lxvJe7

Hormone deprivation alters mitochondrial function and lipid profile in the hippocampus

Mitochondrial dysfunction is a common hallmark in aging. In the female, reproductive senescence is characterized by loss of ovarian hormones, many of whose neuroprotective effects converge upon mitochondria. The functional integrity of mitochondria is dependent on membrane fatty acid and phospholipid composition, which are also affected during aging. The effect of long-term ovarian hormone deprivation upon mitochondrial function and its putative association with changes in mitochondrial membrane lipid profile in the hippocampus, an area primarily affected during aging and highly responsive to ovarian hormones, is unknown. To this aim, Wistar adult female rats were ovariectomized or sham-operated. Twelve weeks later, different parameters of mitochondrial function (O2 uptake, ATP production, membrane potential and respiratory complex activities) as well as membrane phospholipid content and composition were evaluated in hippocampal mitochondria. Chronic ovariectomy reduced mitochondrial O2 uptake and ATP production rates and induced membrane depolarization during active respiration without altering the activity of respiratory complexes. Mitochondrial membrane lipid profile showed no changes in cholesterol levels but higher levels of unsaturated fatty acids and a higher peroxidizability index in mitochondria from ovariectomized rats. Interestingly, ovariectomy also reduced cardiolipin content and altered cardiolipin fatty acid profile leading to a lower peroxidizability index. In conclusion, chronic ovarian hormone deprivation induces mitochondrial dysfunction and changes in the mitochondrial membrane lipid profile comparable to an aging phenotype. Our study provides insights into ovarian hormone loss-induced early lipidomic changes with bioenergetic deficits in the hippocampus that may contribute to the increased risk of Alzheimer's disease and other age-associated disorders observed in postmenopause.



http://ift.tt/2lftY2z

Tissue thyroid hormone metabolism is differentially regulated during illness in mice

Illness induces major modifications in central and peripheral thyroid hormone (TH) metabolism, so-called nonthyroidal illness syndrome (NTIS). As a result, organ-specific changes in local TH availability occur depending on the type and severity of illness. Local TH availability is of importance for the regulation of the tissue-specific TH target genes and determined by the interplay between deiodinating enzymes, TH transport and TH receptor (TR) expression. In the present study, we evaluated changes in TH transport, deiodination and TR expression, the resulting tissue TH concentrations and the expression of TH target genes in liver and muscle in three animal models of illness. We induced (1) acute systemic inflammation by intraperitoneal injection of bacterial endotoxin (LPS), (2) chronic local inflammation by a turpentine injection in the hind limb and (3) severe pneumonia and sepsis by intranasal inoculation with Streptococcus pneumoniae. We found that all aspects of peripheral TH metabolism are differentially regulated during illness, depending on the organ studied and severity of illness. In addition, tissue TH concentrations are not equally affected by the decrease in serum TH concentrations. For example, the decrease in muscle TH concentrations is less severe than the decrease observed in liver. In addition, despite lower TH concentrations in muscle in all three models, muscle T3 action is differentially affected. These observations help to understand the complex nature of the nonthyroidal illness syndrome.



http://ift.tt/2lffC1V

Evaluation of the Self-Fitting Process with a Commercially Available Hearing Aid



http://ift.tt/2miFGua

Does Language Matter When Using a Graphical Method for Calculating the Speech Intelligibility Index?

jaaa.gif



http://ift.tt/2lxrKhw

Build a Better Hearing Assessment and the Patients Will Beat a Path to Your Clinic



http://ift.tt/2lxtmIf

Working Memory, Sleep, and Hearing Problems in Patients with Tinnitus and Hearing Loss Fitted with Hearing Aids



http://ift.tt/2miO9xm

Inner Ear Excitation in Normal and Postmastoidectomy Participants by Fluid Stimulation in the Absence of Air- and Bone-Conduction Mechanisms



http://ift.tt/2lxu740

Potential Benefits of an Integrated Electric-Acoustic Sound Processor with Children: A Preliminary Report



http://ift.tt/2lxpqqE

Validation of a Computer-Administered Version of the Digits-in-Noise Test for Hearing Screening in the United States



http://ift.tt/2miFET4

JAAA CEU Program



http://ift.tt/2lxoHWx

Immediate effects of an anchor system on the stability limit of individuals with chronic dizziness of peripheral vestibular origin

Almir Resende Coelho, Ana Paula do Rego Andre, Júlia Licursi Lambertti Perobelli, Lilian Shizuka Sonobe, Daniela Cristina Carvalho de Abreu
Braz J Otorhinolaryngol 2017;83:3-9

Resumo - Texto Completo - PDF

http://ift.tt/2kSuKWS

Mode of recording and modulation frequency effects of auditory steady state response thresholds

Bahram Jalaei, Moslem Shaabani, Mohd Normani Zakaria
Braz J Otorhinolaryngol 2017;83:10-5

Resumo - Texto Completo - PDF

http://ift.tt/2l5x0Wd

Is there a role for regenerative medicine in chronic rhinosinusitis with nasal polyps?

Fabiana C.P. Valera, Leandra M. Endam, Badr Ibrahim, Emmanuelle Brochiero, Martin Y. Desrosiers
Braz J Otorhinolaryngol 2017;83:1-2

Resumo - Texto Completo - PDF

http://ift.tt/2l5Fk8j

Hearing performance as a predictor of postural recovery in cochlear implant users

Mario Edvin Greters, Roseli Saraiva Moreira Bittar, Signe Schuster Grasel, Jeanne Oiticica, Ricardo Ferreira Bento
Braz J Otorhinolaryngol 2017;83:16-22

Resumo - Texto Completo - PDF

http://ift.tt/2kSyQ1d

A possible cause of epistaxis: increased masked hypertension prevalence in patients with epistaxis

Baran Acar, Bunyamin Yavuz, Erdem Yıldız, Selcuk Ozkan, Mehmet Ayturk, Omer Sen, Onur Sinan Deveci
Braz J Otorhinolaryngol 2017;83:45-9

Resumo - Texto Completo - PDF

http://ift.tt/2kSylEw

Clinical outcome and patient satisfaction using biodegradable (NasoPore) and non‐biodegradable packing, a double‐blind, prospective, randomized study

Pawel Krzysztof Burduk, Malgorzata Wierzchowska, Blazej Grześkowiak, Wojciech Kaźmierczak, Katarzyna Wawrzyniak
Braz J Otorhinolaryngol 2017;83:23-8

Resumo - Texto Completo - PDF

http://ift.tt/2l5GQao

Prevalence of dizziness in the population of Minas Gerais, Brazil, and its association with demographic and socioeconomic characteristics and health status

Tiago Ferreira Martins, Patrícia Cotta Mancini, Luiza de Marilac de Souza, Juliana Nunes Santos
Braz J Otorhinolaryngol 2017;83:29-37

Resumo - Texto Completo - PDF

http://ift.tt/2kSCNDh

Human papillomavirus in oral cavity and oropharynx carcinomas in the central region of Brazil

Guilherme Petito, Megmar Aparecida dos Santos Carneiro, Sílvia Helena de Rabello Santos, Antonio Marcio Teodoro Cordeiro Silva, Rita de Cassia Alencar, Antonio Paulo Gontijo, Vera Aparecida Saddi
Braz J Otorhinolaryngol 2017;83:38-44

Resumo - Texto Completo - PDF

http://ift.tt/2l5ECbc

Assessment of Eustachian tube function in patients with tympanic membrane retraction and in normal subjects

Inesângela Canali, Letícia Petersen Schmidt Rosito, Bruno Siliprandi, Cláudia Giugno, Sady Selaimen da Costa
Braz J Otorhinolaryngol 2017;83:50-8

Resumo - Texto Completo - PDF

http://ift.tt/2l5EfNM

Effectiveness of caudal septal extension graft application in endonasal septoplasty

Yunus Karadavut, Ilker Akyıldız, Hatice Karadaş, Aykut Erdem Dinç, Gökçe Tulacı, Eren Tastan
Braz J Otorhinolaryngol 2017;83:59-65

Resumo - Texto Completo - PDF

http://ift.tt/2kSBioJ

Distinct characteristics of nasal polyps with and without eosinophilia

Changzhi Sun, Hong Ouyang, Renzhong Luo
Braz J Otorhinolaryngol 2017;83:66-72

Resumo - Texto Completo - PDF

http://ift.tt/2l5Lndc

Sonographic scoring of solid thyroid nodules: effects of nodule size and suspicious cervical lymph node

Ozlem Unsal, Meltem Akpinar, Bilge Turk, Irmak Ucak, Alper Ozel, Semra Kayaoglu, Berna Uslu Coskun
Braz J Otorhinolaryngol 2017;83:73-9

Resumo - Texto Completo - PDF

http://ift.tt/2kSBbcF

Is there a role for regenerative medicine in chronic rhinosinusitis with nasal polyps?

Fabiana C.P. Valera, Leandra M. Endam, Badr Ibrahim, Emmanuelle Brochiero, Martin Y. Desrosiers
Braz J Otorhinolaryngol 2017;83:1-2

Resumo - Texto Completo - PDF

http://ift.tt/2l5Fk8j

Mode of recording and modulation frequency effects of auditory steady state response thresholds

Bahram Jalaei, Moslem Shaabani, Mohd Normani Zakaria
Braz J Otorhinolaryngol 2017;83:10-5

Resumo - Texto Completo - PDF

http://ift.tt/2l5x0Wd

Immediate effects of an anchor system on the stability limit of individuals with chronic dizziness of peripheral vestibular origin

Almir Resende Coelho, Ana Paula do Rego Andre, Júlia Licursi Lambertti Perobelli, Lilian Shizuka Sonobe, Daniela Cristina Carvalho de Abreu
Braz J Otorhinolaryngol 2017;83:3-9

Resumo - Texto Completo - PDF

http://ift.tt/2kSuKWS

Hearing performance as a predictor of postural recovery in cochlear implant users

Mario Edvin Greters, Roseli Saraiva Moreira Bittar, Signe Schuster Grasel, Jeanne Oiticica, Ricardo Ferreira Bento
Braz J Otorhinolaryngol 2017;83:16-22

Resumo - Texto Completo - PDF

http://ift.tt/2kSyQ1d

Clinical outcome and patient satisfaction using biodegradable (NasoPore) and non‐biodegradable packing, a double‐blind, prospective, randomized study

Pawel Krzysztof Burduk, Malgorzata Wierzchowska, Blazej Grześkowiak, Wojciech Kaźmierczak, Katarzyna Wawrzyniak
Braz J Otorhinolaryngol 2017;83:23-8

Resumo - Texto Completo - PDF

http://ift.tt/2l5GQao

Prevalence of dizziness in the population of Minas Gerais, Brazil, and its association with demographic and socioeconomic characteristics and health status

Tiago Ferreira Martins, Patrícia Cotta Mancini, Luiza de Marilac de Souza, Juliana Nunes Santos
Braz J Otorhinolaryngol 2017;83:29-37

Resumo - Texto Completo - PDF

http://ift.tt/2kSCNDh

A possible cause of epistaxis: increased masked hypertension prevalence in patients with epistaxis

Baran Acar, Bunyamin Yavuz, Erdem Yıldız, Selcuk Ozkan, Mehmet Ayturk, Omer Sen, Onur Sinan Deveci
Braz J Otorhinolaryngol 2017;83:45-9

Resumo - Texto Completo - PDF

http://ift.tt/2kSylEw

Distinct characteristics of nasal polyps with and without eosinophilia

Changzhi Sun, Hong Ouyang, Renzhong Luo
Braz J Otorhinolaryngol 2017;83:66-72

Resumo - Texto Completo - PDF

http://ift.tt/2l5Lndc

Human papillomavirus in oral cavity and oropharynx carcinomas in the central region of Brazil

Guilherme Petito, Megmar Aparecida dos Santos Carneiro, Sílvia Helena de Rabello Santos, Antonio Marcio Teodoro Cordeiro Silva, Rita de Cassia Alencar, Antonio Paulo Gontijo, Vera Aparecida Saddi
Braz J Otorhinolaryngol 2017;83:38-44

Resumo - Texto Completo - PDF

http://ift.tt/2l5ECbc

Assessment of Eustachian tube function in patients with tympanic membrane retraction and in normal subjects

Inesângela Canali, Letícia Petersen Schmidt Rosito, Bruno Siliprandi, Cláudia Giugno, Sady Selaimen da Costa
Braz J Otorhinolaryngol 2017;83:50-8

Resumo - Texto Completo - PDF

http://ift.tt/2l5EfNM

Effectiveness of caudal septal extension graft application in endonasal septoplasty

Yunus Karadavut, Ilker Akyıldız, Hatice Karadaş, Aykut Erdem Dinç, Gökçe Tulacı, Eren Tastan
Braz J Otorhinolaryngol 2017;83:59-65

Resumo - Texto Completo - PDF

http://ift.tt/2kSBioJ

Association of the C47T polymorphism in superoxide dismutase gene 2 with noise‐induced hearing loss: a meta‐analysis

Jing Wang, Jun Li, Kang Peng, Zi-Ying Fu, Jia Tang, Ming-Jian Yang, Qi-Cai Chen
Braz J Otorhinolaryngol 2017;83:80-7

Resumo - Texto Completo - PDF

http://ift.tt/2l5Hvc0

Sonographic scoring of solid thyroid nodules: effects of nodule size and suspicious cervical lymph node

Ozlem Unsal, Meltem Akpinar, Bilge Turk, Irmak Ucak, Alper Ozel, Semra Kayaoglu, Berna Uslu Coskun
Braz J Otorhinolaryngol 2017;83:73-9

Resumo - Texto Completo - PDF

http://ift.tt/2kSBbcF

The role of Onodi cells in sphenoiditis: results of multiplanar reconstruction of computed tomography scanning

Mehmet Senturk, Ibrahim Guler, Isa Azgin, Engin Umut Sakarya, Gultekin Ovet, Necat Alatas, Ismet Tolu, Omer Erdur
Braz J Otorhinolaryngol 2017;83:88-93

Resumo - Texto Completo - PDF

http://ift.tt/2kSs1Nu

Which features of advanced head and neck basal cell carcinoma are associated with perineural invasion?

André Bandiera de Oliveira Santos, Natalia Martins Magacho de Andrade, Lenine Garcia Brandão, Claudio Roberto Cernea
Braz J Otorhinolaryngol 2017;83:94-7

Resumo - Texto Completo - PDF

http://ift.tt/2l5FyMM

Obstructive sleep apnea and oral language disorders

Camila de Castro Corrêa, Maria Gabriela Cavalheiro, Luciana Paula Maximino, Silke Anna Theresa Weber
Braz J Otorhinolaryngol 2017;83:98-104

Resumo - Texto Completo - PDF

http://ift.tt/2kSqxTc

Sinusitis in patients undergoing allogeneic bone marrow transplantation – a review

Joanna Ewa Drozd‐Sokolowska, Jacek Sokolowski, Wieslaw Wiktor‐Jedrzejczak, Kazimierz Niemczyk
Braz J Otorhinolaryngol 2017;83:105-11

Resumo - Texto Completo - PDF

http://ift.tt/2l5Lqp8

Speech auditory brainstem response (speech ABR) in the differential diagnosis of scholastic difficulties

Milaine Dominici Sanfins, Letícia Reis Borges, Thalita Ubiali, Maria Francisca Colella-Santos
Braz J Otorhinolaryngol 2017;83:112-6

Resumo - Texto Completo - PDF

http://ift.tt/2kSqwyC

Bilateral oropharyngeal hairy polyps: a rare cause of dyspnea in newborns

Rasim Yilmazer, Burak Kersin, Erkan Soylu, Gokhan Altin, Asli Cakir, Fahrettin Yilmaz
Braz J Otorhinolaryngol 2017;83:117-8

Resumo - Texto Completo - PDF

http://ift.tt/2l5Lm98

Transcriptome sequencing reveals maelstrom as a novel target gene of the terminal-system in the red flour beetle Tribolium castaneum [RESEARCH ARTICLE]

Fabian Pridöhl, Matthias Weisskopf, Nikolaus Koniszewski, Andreas Sulzmaier, Steffen Uebe, Arif B. Ekici, and Michael Schoppmeier

Terminal regions of the Drosophila embryo are patterned by the localized activation of the Torso-RTK pathway, which promotes the down-regulation of Capicua. In the short-germ beetle Tribolium, the function of the terminal system appears to be rather different, as the pathway promotes axis elongation and in addition, is required for patterning the extraembryonic serosa at the anterior. Here we show that Torso signalling induces gene expression by relieving CAPICUA-mediated repression also in Tribolium. Given that the majority of Torso target genes remain to be identified, we established a differential gene-expression screen. A subset of 50 putative terminal target genes was screened for functions in early embryonic patterning. Of those, 13 genes show early terminal expression domains and also phenotypes were related to terminal patterning. Among others, we found the PIWI-interacting RNA factor Maelstrom to be crucial for early embryonic polarization. Tc-mael is required for proper serosal size regulation and head morphogenesis. Moreover, Tc-mael promotes growth-zone formation and axis elongation. Our results suggest that posterior patterning by Torso may be realized through Maelstrom depended activation of posterior wnt-domains.



http://ift.tt/2lLupET

Severe preeclampsia is associated with alterations in cytotrophoblasts of the smooth chorion [RESEARCH ARTICLE]

T. Garrido-Gomez, K. Ona, M. Kapidzic, M. Gormley, C. Simon, O. Genbacev, and S. J. Fisher

Preeclampsia (PE), which affects ~8% of first pregnancies, is associated with faulty placentation. Extravillous cytotrophoblasts (CTBs) fail to differentiate properly, contributing to shallow uterine invasion and deficient spiral artery remodeling. We studied the effects of severe PE (sPE) on the smooth chorion portion of the fetal membranes. The results showed a significant expansion of the CTB layer. The cells displayed enhanced expression of stage-specific antigens that extravillous CTBs normally up regulate as they exit the placenta. Transcriptomics revealed the dysregulated expression of many genes (e.g., placental proteins, markers of oxidative stress). We confirmed a sPE-related increase in production of PAPPA1, which releases IGF-1 from its binding protein. IGF1 enhanced proliferation of smooth chorion CTBs, a possible explanation for expansion of this layer, which may partially compensate for the placental deficits.



http://ift.tt/2lfisE8

Genetic redundancy of GATA factors in extraembryonic trophoblast lineage ensures progression of both pre and postimplantation mammalian development [RESEARCH ARTICLE]

Pratik Home, Ram Parikshan Kumar, Avishek Ganguly, Biswarup Saha, Jessica Milano-Foster, Bhaswati Bhattacharya, Soma Ray, Sumedha Gunewardena, Arindam Paul, Sally A. Camper, Patrick E. Fields, and Soumen Paul

GATA transcription factors are implicated in establishing cell fate during mammalian development. In early mammalian embryos, GATA3 is selectively expressed in the extraembryonic trophoblast lineage and regulates gene expression to promote trophoblast fate. However, trophoblast-specific GATA3 function is dispensable for early mammalian development. Here, using dual conditional knockout mice, we show that genetic redundancy of GATA3 with paralog GATA2 in trophoblast progenitors ensures the successful progression of both pre and postimplantation mammalian development. Stage-specific gene deletion in trophoblasts reveals that loss of both GATA genes, but not either one alone, leads to embryonic lethality prior to the onset of their expression within the embryo proper. Using ChIP-seq and RNA-seq analyses, we define the global targets of GATA2/GATA3 and show that they directly regulate a large number of common genes to orchestrate stem vs. differentiated trophoblast fate. Also, in trophoblast progenitors GATA factors directly regulate BMP4, Nodal and Wnt signaling components that promote embryonic-extraembryonic signaling cross-talk, essential for the development of the embryo proper. Our study provides genetic evidence that impairment of trophoblast-specific GATA2/GATA3 function could lead to early pregnancy failure.



http://ift.tt/2lLraxb

FGF signaling enforces cardiac chamber identity in the developing ventricle [RESEARCH ARTICLE]

Arjana Pradhan, Xin-Xin I. Zeng, Pragya Sidhwani, Sara R. Marques, Vanessa George, Kimara L. Targoff, Neil C. Chi, and Deborah Yelon

Atrial and ventricular cardiac chambers behave as distinct subunits with unique morphological, electrophysiological, and contractile properties. Despite the importance of chamber-specific features, chamber fate assignments remain relatively plastic, even after differentiation is underway. In zebrafish, Nkx transcription factors are essential for the maintenance of ventricular characteristics, but the signaling pathways that operate upstream of Nkx factors in this context are not well understood. Here, we show that FGF signaling plays an essential part in enforcing ventricular identity. Loss of FGF signaling results in a gradual accumulation of atrial cells, a corresponding loss of ventricular cells, and the appearance of ectopic atrial gene expression within the ventricle. These phenotypes reflect important roles for FGF signaling in promoting ventricular traits, both in early-differentiating cells that form the initial ventricle and in late-differentiating cells that append to its arterial pole. Moreover, we find that FGF signaling functions upstream of nkx genes to inhibit ectopic atrial gene expression. Together, our data suggest a model in which sustained FGF signaling acts to suppress cardiomyocyte plasticity and to preserve the integrity of the ventricular chamber.



http://ift.tt/2leYABm

Four Cases of Pediatric Deep-Seated/Subcutaneous Pyogenic Granuloma: Review of Literature and Differential Diagnosis

ABSTRACT

Background

Pyogenic granulomas are benign, reactive, typically superficial vascular lesions that can be idiopathic or arise secondary to trauma, underlying vascular malformations, infections, physiologic or pathologic endocrine changes, and hormone therapy. Deep-seated/subcutaneous pyogenic granulomas (DSPG) are rarely seen in any age group. Pediatric DSPGs can be a clinical and pathologic challenge because these lesions mimic other vascular lesions, including kaposiform hemangioendothelioma, infantile hemangiomas, and vascular malformations.

Methods

Retrospective search of DSPG excised at Cincinnati Children's Hospital Medical center between June 2010 and June 2011 was conducted. Clinical information was obtained from patient charts and histologic slides were retrieved and reviewed.

Results

Of the 106 cases of pyogenic granuloma, four (3.8%) were diagnosed as DSPG. We report the details of those four cases and compare them to the other pediatric DSPG cases reported in the literature. We also review the histologic differential diagnosis of DSPG in pediatric population.

Conclusion

Our results suggest that these lesions may not be as rare as inferred by literature, but, rather, underdiagnosed.



http://ift.tt/2lfoLYo

Survival of patients with melanoma brain metastasis treated with stereotactic radiosurgery and active systemic drug therapies

S09598049.gif

Publication date: April 2017
Source:European Journal of Cancer, Volume 75
Author(s): Ee Siang Choong, Serigne Lo, Martin Drummond, Gerald B. Fogarty, Alexander M. Menzies, Alexander Guminski, Brindha Shivalingam, Kathryn Clarke, Georgina V. Long, Angela M. Hong
IntroductionWith new systemic therapies demonstrating activity in melanoma brain metastasis, most of the previously reported stereotactic radiosurgery (SRS) data are superseded. In this study, we report the outcomes (overall survival [OS] and brain control [BC]) and identify factors that associate with such outcomes in the era of modern systemic therapy.MethodA total of 108 patients treated with SRS from 2010 to 2015 were included. Systemic treatment use within 6 weeks of SRS was noted. OS was defined as time from SRS to death or last follow-up, and BC was defined as absence of any active intracranial disease during follow-up. Univariate and multivariate Cox proportional hazard analyses were performed on clinico-pathological prognostic features associated with OS and BC.ResultsThe median age was 64.3 years, and the median follow-up was 8.6 months. Seventy-nine (73.1%) patients received systemic treatment. The median OS were as follows: anti-CTLA4 – 7.5 months (95% CI: 4.4–15.6), anti-PD1 – 20.4 months (95% CI: 8.8 – N/A) and BRAF inhibitor (BRAFi) ± MEK inhibitor (MEKi) – 17.8 months (95% CI: 11.8 – N/A). Median BC was as follows: anti-CTLA4 – 7.5 months (95% CI: 4.0–15.6), anti-PD1 – 12.7 months (95% CI: 5.5 – N/A) and BRAFi ± MEKi – 12.7 months (95% CI: 8.3–18.5). In multivariate analysis, age and type of systemic therapy were strongly associated with OS. Age, Eastern Cooperative Oncology Group performance status, Graded Prognostic Assessment (GPA) score, and presence of symptoms were associated with BC.ConclusionsFavourable outcomes are seen in patients treated with SRS and with the best survival seen in patients treated with anti-PD1. Known independent prognostic factors for survival such as age and performance status and GPA score remain relevant in this setting.



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