Brightsurf Science News & Current Events

February 10, 2008
NIAID scientists identify new cellular receptor for HIV
A cellular protein that helps guide immune cells to the gut has been newly identified as a target of HIV when the virus begins its assault on the body's immune system, according to researchers from the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health.

Study reveals why certain ovarian cancers develop resistance to platinum-based chemotherapy
A team of researchers led by Fred Hutchinson Cancer Research Center has identified a new mechanism that explains why some recurrent ovarian tumors become resistant to treatment with commonly used platinum-based chemotherapy drugs such as cisplatin and carboplatin.

Light echoes whisper the distance to a star
Taking advantage of the presence of light echoes, a team of astronomers have used an ESO telescope to measure, at the 1 percent precision level, the distance of a Cepheid -- a class of variable stars that constitutes one of the first steps in the cosmic distance ladder.

Artificial sweeteners linked to weight gain
Want to lose weight? It might help to pour that diet soda down the drain.

How red blood cells nuke their nuclei
Late in their development, mammalian red blood cells lose their nuclei when a ring of actin filaments contracts and pinches off a segment of the cell that mainly contains the nucleus.
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