Prevalence of comorbid asthma in Tunisian patients with COVID-19: clinical features and outcomes.

Introduction: The coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has resulted in around 1 million COVID-19 infection cases and over 29,000 deaths in Tunisia thus far. There is great variability in the prevalence of asthma among patients with COVID-19, but the impact of asthma on patients with COVID-19 is not clear. We sought to describe the clinical features of Tunisian patients with COVID-19 and to compare asthmatic and non-asthmatic patients.

Chiroptically Active Multi-Modal Calcium Carbonate-Based Nanocomposites.

The development of multimodal nano- and micro-structures has become an increasingly popular area of research in recent years. In particular, the combination of two or more desirable properties within a single structure opens multiple opportunities from biomedicine, sensing, and catalysis, to a variety of optical applications. Here, for the first time, we report the synthesis and characterization of multimodal chiroptically active CaCO nanocomposites.

The effects of prolonged stress exposure on the brain of rats and insights to understand the impact of work-related stress on caregivers.

Introduction: Stress exposure is a significant concern in the healthcare sector. This animal model study aims to reproduce caregivers' working conditions and determine their impact on the brain.

Method: Twenty-four healthy male rats of the Wistar strain were divided into four groups.

Effect of the incorporation of polysaccharides from green alga Bryopsis plumosa on beef sausages quality.

Maintaining the quality and stability of functional meat products during storage is one of the major challenges of these products. The aim of this study was to evaluate the potential of polysaccharides extracted from green alga Bryopsis plumosa as a new natural additive in the formulation of beef sausages. In order to evaluate the impact of the incorporation of polysaccharides in beef sausages formulation, the physico-chemical, microbiological, and antioxidant properties were investigated during 12 days of storage at 4°C.

Interest of surgical vascular reconstructions aiming at preserving hemodialysis access.

Background: Vascular hemodialysis access is a very precious asset for patients with end-stage renal failure. Ideally complications in these accesses should be detected early in order to treat them in time. The aim of this study was to evaluate the effectiveness of vascular reconstructions to preserve the vascular access for hemodialysis and to examine their benefits in terms of conserving the venous network, using hemodialysis catheters, time of cannulation after surgery, patency and postoperative morbi-mortality, by comparing them to those of newly created arterio-venous fistula (AVF).