Entries by دکتر امین اظهری

,

Increased infectivity, antibody escape drive SARS-CoV-2 evolution

First announced by the World Health Organization on Nov. 26, 2021, the SARS-CoV-2 omicron variant spread rapidly around the world, becoming the dominant variant in the U.S. and elsewhere. Now, researchers report in ACS Infectious Diseases and the Journal of Chemical Information and Modeling that omicron and other variants are evolving increased infectivity and antibody […]

,

Antibodies improve in quality for months after COVID-19 vaccination

For at least six months after COVID-19 vaccination, antibodies produced by immune cells become steadily more formidable and more precisely targeted against the virus that causes COVID-19, according to a study of the antibody response to the Pfizer-BioNTech vaccine by researchers at Washington University School of Medicine in St. Louis. The idea that antibodies increase […]

High levels of hazardous chemicals found in Canadian nail salons

Researchers at the University of Toronto’s Dalla Lana School of Public Health, in collaboration with Parkdale Queen West Community Heath Centre and the Healthy Nail Salons Network, have found that nail technicians in discount salons are exposed to several chemicals widely used as plasticizers and flame retardants. The study, published this week in the journal […]

,

COVID-19 vaccination boosts mental health along with immunity

Getting vaccinated for COVID-19 measurably improved the psychological well-being of participants in the Understanding Coronavirus in America study, a large longitudinal look at the impact of the pandemic on individuals in the United States. Vaccination was associated with declines in distress and perceived risks of infection, hospitalization, and death. The study, appearing in the American […]

, ,

Exercise post-vaccine bumps up antibodies

Researchers at Iowa State University found 90 minutes of mild- to moderate-intensity exercise directly after a flu or COVID-19 vaccine may provide an extra immune boost. In the newly published study, participants who cycled on a stationary bike or took a brisk walk for an hour-and-a-half after getting a jab produced more antibodies in the […]

Poor sleep can triple risk for heart disease

Individual aspects of poor sleep can be detrimental to heart health. But if you combine them, the risk of heart disease can increase by as much as 141 percent. That’s the finding of a new study published in the journal Scientific Reports. The University of South Florida-led study reviewed sleep data of 6,820 U.S. adults […]

,

COVID-19 infections increase risk of heart conditions up to a year later

An in-depth analysis of federal health data indicates that people who have had COVID-19 are at increased risk of developing cardiovascular complications within the first month to a year after infection. Such complications include disruptive heart rhythms, inflammation of the heart, blood clots, stroke, coronary artery disease, heart attack, heart failure or even death. Such […]

,

Alzheimer’s-like Changes in Some COVID Patients’ Brains

A study from researchers at Columbia University Vagelos College of Physicians and Surgeons reports that the brains of a small sample of patients who died of COVID display some of the same molecular changes found in the brains of people with Alzheimer’s disease. The findings could help explain the memory problems reported by sufferers of […]