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COVID-19 CAUSES ‘HYPERACTIVITY’ IN BLOOD-CLOTTING CELLS

Changes in blood platelets triggered by COVID-19 could contribute to the onset of heart attacks, strokes, and other serious complications in some patients who have the disease, according to University of Utah Health scientists. The researchers found that inflammatory proteins produced during infection significantly alter the function of platelets, making them “hyperactive” and more prone to form dangerous and potentially deadly blood clots.

CLUES TO COVID-19 COMPLICATIONS COME FROM NET-LIKE INFLAMMATORY RESPONSE

An overactive defense response may lead to increased blood clotting, disease severity, and death from COVID-19. A phenomenon called NETosis—in which infection-fighting cells emit a web-like substance to trap invading viruses—is part of an immune response that becomes increasingly hyperactive in people on ventilators and people who die from the disease.

People try to do right by each other, no matter the motivation, study finds

People want to help each other, even when it costs them something, and even when the motivations to help don’t always align, a new study suggests.

In research published today in the journal Science Advances, sociologists found that people overwhelmingly chose to be generous to others – even to strangers, and even when it seems one motivation to help might crowd out another.