Chancellor J. Michael Bishop, MD, who has led the University of California, San Francisco for the past 10 years, today announced plans to step down from his post, effective June 30, 2009.

Active elderly women scored better on tests of mental function than less active women, according to a new study led by researchers at the San Francisco VA Medical Center and the University of California, San Francisco.

A new study looking at unprotected intercourse within gay couples when each partner has established HIV-infection found a correlation between anti-HIV immune response and sexual activity.