Cardiology

Noncalcified coronary plaque burden higher in people with HIV

People living with human immunodeficiency virus (HIV) and without known cardiovascular disease have two to three times the noncalcified coronary plaque burden of non-HIV healthy volunteers, according to a study from Canada ...

Health

The ethics of human challenge trials

The first human challenge trial to test COVID-19 treatments and vaccines is set to begin in January in the United Kingdom. These trials, in which healthy volunteers are infected with the virus after being given different ...

Diseases, Conditions, Syndromes

UK to infect healthy volunteers in vaccine research trial

U.K. researchers are preparing to infect healthy young volunteers with the virus that causes COVID-19, becoming the first to announce plans to use the controversial technique to study the disease and potentially speed up ...

Vaccination

Ethics must not be ignored when testing COVID-19 vaccines

The grassroots organization 1Day Sooner has been asking people to indicate their willingness to volunteer for human challenge studies of COVID-19. Challenge studies, in which healthy people are intentionally exposed to infection, ...

Psychology & Psychiatry

Study finds out why some words may be more memorable than others

Thousands of words, big and small, are crammed inside our memory banks just waiting to be swiftly withdrawn and strung into sentences. In a recent study of epilepsy patients and healthy volunteers, National Institutes of ...

Cardiology

New study shows sex differences in the physiology of the heart

Thanks to new technology, researchers at the Clinical Physiology group, Department of Molecular Medicine and Surgery, Karolinska Institutet, have demonstrated that females have higher myocardial perfusion, blood volume and ...

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