Chitosan as a tool for tissue engineering and rehabilitation: Recent developments and future perspectives - A review.

Chitosan has established itself as a multifunctional and auspicious biomaterial within the domain of tissue engineering, presenting a decade of uninterrupted advancements and novel implementations. This article provides a comprehensive overview of the most recent developments in chitosan-based tissue engineering, focusing on significant progress made in the last ten years. An exploration is conducted of the various techniques utilized in the modification of chitosan and the production of scaffolds, with an analysis of their effects on cellular reactions and tissue regeneration.

A smart handheld magnifier for reflowing printed text notices in public spaces.

Purpose: Individuals with reduced vision may rely on handheld magnifiers for near reading of texts on household items such as food packaging and far reading of information notices and signposts. Smartphones have become favoured magnification devices due to their pervasiveness. Users typically take a photo of the text, view the image with magnification and explore details by panning in two-dimensions.

Risk factors associated with retinopathy in young people with type 1 diabetes in Bangladesh.

Objectives: Diabetic retinopathy (DR) is the most common microvascular complications seen in children and adolescents with type 1 diabetes. The aim of this study was to evaluate the prevalence of retinopathy and its association with other risk factors in young people with type 1 diabetes.

Methods: This study was a cross-sectional study, which was done as part of the ongoing complication assessment in the paediatric diabetes clinic in BIRDEM (Bangladesh Institute of Research and Rehabilitation of Diabetes Endocrine and Metabolic Disorders), a tertiary care hospital.

Malignant Cerebral Ischemia in A COVID-19 Infected Patient: Case Review and Histopathological Findings.

Severe acute respiratory syndrome coronavirus (SARS-CoV-2) is responsible for an unprecedented worldwide pandemic that has severely impacted the United States. As the pandemic continues, a growing body of evidence suggests that infected patients may develop significant coagulopathy with resultant thromboembolic complications including deep vein thrombosis, pulmonary embolism, myocardial infarction, and ischemic stroke. However, this data is limited and comes from recent small case series and observational studies on stroke types, mechanisms, and outcomes.

Patterns of injury detected by pan-computed tomography after road traffic accidents: retrospective review from a trauma center in Saudi Arabia.

Background: Pan-scan (whole-body) computed tomography (CT) has a paramount role in the diagnosis of injuries in road traffic accidents (RTA).

Objective: Identify patterns of injuries on pan-CT scans.

Design: Retrospective medical record review.

Prediction of F NMR Chemical Shifts for Fluorinated Aromatic Compounds.

Scaling factors are reported for use in predicting F NMR chemical shifts for fluorinated (hetero)aromatic compounds with relatively low levels of theory. Our recommended scaling factors were developed using a curated data set of 52 compounds, with 100 individual F shifts spanning a range of 153 ppm. With a maximum deviation of 6.

Hydrogen Bond Directed Photocatalytic Hydrodefluorination: Overcoming Electronic Control.

The photocatalytic C-F functionalization of highly fluorinated arenes is a powerful method for accessing functionalized multifluorinated arenes. The decisive step in the determining regioselectivity in fluorine functionalization is fluoride fragmentation from the radical anion of the multifluorinated arene. To date, the availability of regioisomers has been dictated by the innate electronics of the fluorinated arene, limiting the synthetic utility of the chemistry.

Epidemiological study of chronic tinnitus in Assiut, Egypt.

Background And Aim: Few comprehensive epidemiological studies of the prevalence of tinnitus have been undertaken, and none has been carried out in Egypt. A community-based survey was conducted in the Assiut Governorate to estimate the prevalence of tinnitus, its associations with psychiatric disorders and its effect on the quality of life.

Material And Methods: The study involved 8,484 subjects, 5,783 (68.

Helicobacter pylori Infection and Inflammation: Implication for the Pathophysiology of Diabetes and Coronary Heart Disease in Asian Indians.

Asian Indians living in the Indian subcontinent or abroad experience high rate of coronary heart disease (CHD) and type 2 diabetes mellitus (T2DM). Asian Indians are also known to suffer from various infections, particularly during their childhood. One such chronic infection is with Helicobacter pylori (H.

H. pylori-Induced Higher C-Reactive Protein in Obese African Americans.

African Americans are more susceptible to develop insulin resistance, obesity, Type 2 Diabetes, and coronary heart disease (CHD), and systemic inflammation is central to the pathophysiology of these chronic diseases. African Americans are also more likely to contract H. pylori (cagA) infections during their childhood.

Anthropometric characteristics of elderly people: observations at a large diarrheal hospital in Dhaka, Bangladesh.

There is a lack of evidence-based information to assist health policy makers in preparing for appropriate health, nutrition, and social-support guidelines for the elderly in Bangladesh. We examined selected indicators of the nutritional status of elderly people attending the Dhaka Hospital of ICDDR,B, Dhaka, Bangladesh. The population constituted of 1,196 individuals (718 men and 478 women), aged 60 to 106 years, who attended the hospital between 1 January 1993 and 31 December 2003.

Zinc supplementation as adjunct therapy in children with measles accompanied by pneumonia: a double-blind, randomized controlled trial.

Background: Zinc deficiency, common in developing countries, is associated with decreased immunocompetence. Zinc supplementation benefits children with acute and persistent diarrhea and prevents pneumonia. Most deaths from vaccine-preventable diseases are from measles and whooping cough; pneumonia is the most common complication of measles and often the proximate cause of related deaths.