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

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Κυριακή 27 Νοεμβρίου 2022

Silencing of Tropomyosin 1 suppresses the proliferation, invasion and metastasis of oral squamous cell carcinoma in vitro

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Publication date: Available online 24 November 2022

Source: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology

Author(s): Takanori Takenawa, Koji Harada, Tarannum Ferdous, Keisuke Kawasaki, Yasuhiro Kuramitsu, Katsuaki Mishima

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Early warning signals for Omicron outbreaks

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Abstract

The Omicron variant has become the dominant COVID-19 variant worldwide due to its rapid and cryptic spread; therefore, successful early warning is of great importance to be able to control epidemics in their early phase, before developing into large outbreaks. COVID-19-related Baidu search index, which reflects human behavior to a certain degree, was used to retrospectively detect the warning signs for Omicron variant outbreaks in China in 2022. The characteristics and effects of warning signs were analyzed in detail. We detected the presence of early warning signs (both high and low thresholds) and found that these occurred 4–7 days earlier than traditional epidemiological surveillance and >20 days earlier than the implementation of the local "lockdown" policy. Compared with the "high threshold" warning, the early warning effect of the "low threshold" is also vital because it indicates a complacency about epidemic prevention and control. Ho wever, there is obvious heterogeneity in the optimal threshold for detecting early warning signs and their distribution in different cities. Multi-source and multi-point early warning systems should be established via combining internet-based big data in the future to conduct effective and early real-time warning. This would create precious time for the early control of COVID-19 outbreaks.

This article is protected by copyright. All rights reserved.

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Molecular characterization of circulating DENV‐2

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Abstract

Globally, 390 million people are at risk of dengue infection and over the past 50 years the virus incidence increased thirty-fold. In Senegal, an unprecedented occurrence of outbreaks and sporadic cases have been noticed since 2017. In October 2018 an outbreak of Dengue virus 2 (DENV-2) was reported in the north of Senegal affecting multiple areas including Saint-Louis, Richard Toll and Rosso whichare located at the border with Mauritania. Of these 173 blood specimen samples collected from patients, 27 were positive for dengue by qRT-PCR and eight were serologically confirmed to be positive for DENV IgM. Serotyping using qRT-PCR reveals that isolates were positive for DENV-2. A subset of DENV-2 positive samples were selected and subjected to whole-genome sequencing followed by phylogenetic analysis. Analysis of 6 nearly complete genome sequences revealed that the isolates belong to the cosmopolitan genotype and are closely related to the Mauritanian strains detected between 2017 and 2018 and those detected in many West African countries such as Burkina Faso or Cote d'Ivoire. Our results suggest a transboundary circulation of the DENV-2 cosmopolitan genotype between Senegal and Mauritania and call for a need of coordinated surveillance of arboviruses between these two countries. Interestingly, high level of homology between West African isolates highlights endemicity and calls for the set-up of sub-regional viral genomic surveillance which will lead to a better understanding of viral dynamics, transmission and spread across Africa.

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“When you are living and dying at the same time” – a qualitative exploration of living with gastrointestinal motility disorders

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ABSTRACT

Aim

An expanding base of evidence indicates that chronic gastrointestinal disorders impact not only physical wellbeing, but also affect many psychosocial aspects of life. However, less is known about gastrointestinal motility disorders. The aim of this study was to explore how individuals experience gastrointestinal motility disorders and its impact on daily living.

Methods

Eleven people with a gastrointestinal motility disorder participated in semi-structured interviews face-to-face or via telephone. The interviews explored how participants came to be diagnosed, their experiences with health professionals, as well as impact of dysmotility on enjoyment of food, socialising, eating out, and quality of life. Interviews were tape-recorded, transcribed and analysed using an inductive thematic analysis approach.

Results

Analysis revealed an overarching theme of frustration that stemmed from three subthemes: 1) feeling misunderstood, judged, and dismi ssed by health professionals leading to delayed diagnosis, misdiagnosis and multiple diagnoses, 2) severity and unpredictability of undesirable gastrointestinal symptoms and 3) reduced quality of life due to physical and social limitations, impairing their ability to have normal life experiences including education, work, and social activities.

Conclusion

Dysmotility is a complex illness that impacts nearly all aspects of a person's life. In addition to managing reported physical symptoms, the social and psychological burden associated with dysmotility needs to be addressed to improve outcomes and quality of life.

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Salvage treatments for locally recurrent nasopharyngeal cancer: A systematic review and meta‐analysis

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Abstract

The present study aimed to evaluate the effectiveness and safety of various salvage treatments to treat locally recurrent nasopharyngeal carcinoma (IrNPC). A comprehensive search was conducted to gather relevant research publications on salvage treatment for IrNPC. Specifically, 2-, 3-, and 5-year overall survival were the primary outcome. A total of 89 studies with 101 cohorts were collected. Endoscopic nasopharyngectomy was found to be associated with a significantly improved 5-year OS compared with CRT (p = 0.027) and IMRT (p = 0.016). Moreover, based on recurrence T classification, the 2-, 3-, and 5-year OS were similar across different treatments. Endoscopic nasopharyngectomy was associated with a significant reduction in treatment-related complications (grade ≥ 3) compared with IMRT (p < 0.001) and open nasopharyngectomy (p = 0.028). Endoscopic nasopharyngectomy may provide comparable treatment outcomes t o re-irradiation, while offering a better safety profile for selective patients with resectable IrNPC.

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Enteral nutrition support and treatment toxicities in patients with head and neck cancer receiving definitive or adjuvant helical intensity‐modulated radiotherapy with concurrent chemotherapy

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Abstract

Background

Enteral nutrition (EN) is often required in patients with head and neck cancer (HNSCC); however, initiation criteria is limited or inconsistent. This study aimed to describe the relationship of treatment toxicities and requirement for EN and investigate toxicity and baseline characteristics association with EN duration.

Methods

Acute toxicities and baseline characteristics were collected from patients with HNSCC (n = 110) undergoing H-IMRT. Percentage EN contributing to estimated requirements and EN duration were measured.

Results

The threshold for patients needing ≥50% of estimated requirements via EN increased from week 3 to 4 for grade ≥2 oral/pharyngeal mucositis, dysgeusia, thick saliva and nausea, and for grade 3 dysphagia. Patients with grade 2–3 dysphagia had a reduced risk of ceasing EN compared to those with grade 0–1 dysphagia.

Conclusions

Using acute toxicities in clinical practice may be a useful tool to inform prompt initiation of EN prior to decline in nutritional status and anticipate EN duration.

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Hepatic Artery Infusion Pumps: A Surgical Toolkit for Intraoperative Decision-Making and Management of Hepatic Artery Infusion-Specific Complications

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imageBackground: Hepatic artery infusion (HAI) is a liver-directed therapy that delivers high-dose chemotherapy to the liver through the hepatic arterial system for colorectal liver metastases and intrahepatic cholangiocarcinoma. Utilization of HAI is rapidly expanding worldwide. Objective and Methods: This review describes the conduct of HAI pump implantation, with focus on common technical pitfalls and their associated solutions. Perioperative identification and management of common postoperative complications is also described. Results: HAI therapy is most commonly performed with the surgical implantation of a subcutaneous pump, and placement of its catheter into the hepatic arterial system for inline flow of pump chemotherapy directly to the liver. Intraoperative challenges and abnormal hepatic perfusion can arise due to aberrant anatomy, vascular disease, technical or patient factors. However, solutions to prevent or overcome technical pitfalls are present for the majority of cases. Postoperative HAI-specific complications arise in 22% to 28% of patients in the form of pump pocket (8%–18%), catheter (10%–26%), vascular (5%–10%), or biliary (2%–8%) complications. The majority of patients can be rescued from these complications with early identification and aggressive intervention to continue to deliver safe and effective HAI therapy. Conclusions: This HAI toolkit provides the HAI team a reference to manage commonly encountered HAI-specific perioperative obstacles and complications. Overcoming these challenges is critical to ensure safe and effective pump implantation and delivery of HAI therapy, and key to successful implementation of new programs and expansion of HAI to patients who may benefit from such a highly specialized treatment strategy.
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