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Сентябрь
2022

Новости за 16.09.2022

Bacterial concentration and Campylobacter spp. quantification differ when fresh or ultra-frozen samples are analysed over time using molecular biology and culture-based methods

Plos.org 

by Farina Khattak, Salvatore Galgano, Jos Houdijk

The study aimed to delineate the robustness of the culture-based and molecular biology methods to assess the total bacterial concentration and Campylobacter jejuni (C. jejuni) quantification in caecal content, analysed as fresh or after being stored immediately at ultra-low (-80°C) temperature at different time points (for 3, 7, 14, 28 and 62 days post collection). The caecal content was collected from birds that were artificially colonised with C. Читать дальше...

Impact of ultrasonographic blind spots for early-stage hepatocellular carcinoma during surveillance

Plos.org 

by Junghwan Lee, Su Bee Park, Soyoung Byun, Ha Il Kim

Background

Abdominal ultrasonography (US) is the backbone of hepatocellular carcinoma (HCC) surveillance. Although previous studies have evaluated clinical factors related to surveillance failure, none have focused specifically on US blind spots.

Methods

This study included 1,289 patients who underwent 6 months intervals surveillance using US and serum alpha-fetoprotein (AFP) and were eventually diagnosed with single-nodular HCC. Читать дальше...



Hematological parameters in a population of male bakers exposed to high heat work environment

Plos.org 

by Sultan T. Al-Otaibi

Objectives

The aim of this study was to determine the hematological changes associated with heat exposure in a population of bakers.

Materials and methods

Personal information was collected using a questionnaire, and a venous blood sample was drawn at the end of a work shift from the bakers and from a control group. The average wet-bulb globe temperature (WBGT) index was measured in the workplaces of both the bakers and the controls.

Results

This cross-sectional... Читать дальше...

Accuracy of vertical cup-to-disc ratio discrimination among clinical optometry trainees with different years of clinical experience

Plos.org 

by Mohd Izzuddin Hairol, Yun Rou Lee

Purpose

Accurate evaluation of the cup-to-disc ratio is crucial for optometrists and may be influenced by their clinical experience. The study’s objective was to compare the thresholds for discriminating vertical cup-to-disc ratio (VCDR) between years 2, 3, and 4 clinical optometry trainees.

Methods

One hundred fundus photos with various VCDR sizes were selected from a clinic database. The median VCDR (0.43) photo was assigned as the standard... Читать дальше...

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