HIV & AIDS

Scientists discover how HIV kills immune cells

Untreated HIV infection destroys a person's immune system by killing infection-fighting cells, but precisely when and how HIV wreaks this destruction has been a mystery until now. New research by scientists at the National ...

Immunology

Immune response linked to key enzyme

(Medical Xpress)—A previously unknown function of a family of enzymes familiar to biologists may contribute to scientists' understanding of signaling molecules involved in the body's immune response and could help in the ...

Cardiology

Losing protein helps heart recover, scientists say

When a person has a heart attack, portions of the heart muscle die in the next several days or even weeks if deprived of oxygen for long enough. The recovering heart slowly remodels itself, even fostering the growth of new ...

Genetics

Mystery gene reveals new mechanism for anxiety disorders

A novel mechanism for anxiety behaviors, including a previously unrecognized inhibitory brain signal, may inspire new strategies for treating psychiatric disorders, University of Chicago researchers report.

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