Jeffrey M. Friedman and colleagues report that the weight-reducing effects of the hormone leptin result from interaction with a receptor in the brain's hypothalamus and other tissues.
New Jersey State Aquarium runs a day camp and other programs where Camden youngsters can explore science.
Participants at HHMI's undergraduate science education conference discuss techniques for determining the impact of their efforts.
Education conference at HHMI focuses on th eimpact of new technology on science education in the schools and other settings.
Garnett L. Keith, chairman of SeaBridge Investment Advisors L.L.C., in Summit, New Jersey, has been elected Trustee of the Howard Hughes Medical Institute, the nation's largest philanthropy.
Graeme Bell and other researchers have found a gene that may make people susceptible to type II diabetes.
Two HHMI physician postdoctoral fellows have developed Medsite Navigator to assist patients, physicians and researchers in locating high-quality medical and scientific information.
Scattered across reservations on the wind-swept plains of North Dakota, a network of schools is encouraging Native American students to pursue science.
The Institute brings together its international research scholars from 10 European countries, in the Czech capital.
A team of HHMI scientists has peered deep inside HIV-1 for a closer view of the fragile shell that envelops the virus' genetic material.
HHMI's international program brings together scientists from the Baltics, Central Europe and the former Soviet Union.
Dan Littman and fellow researchers have found a receptor for HIV that appears to play a key role in the transmission of the virus between individuals.
Michael Naski has helped to identify a genetic mutation that can cause bones to stop growing, leading to a form of dwarfism.
HHMI researchers have learned that basal cell carcinoma is caused by a defect in a gene that restrains cell growth.
HHMI scientists at the University of Texas Southwestern Medical Center are blocking the enzyme telomerase in a new strategy to prevent cancer cells from dividing.
Don Ganem's decision to search for a viral cause for Kaposi's sarcoma was considered risky by many molecular biologists.
Sharon Long's studies of signal transduction pathways in plants could yield insights into cancer and other diseases in humans.