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Science News

Low Fat, High Sugar Diets Prompt Production of Saturated Fats

Eating a low-fat diet may not always be as healthy as people wish. Results from a study, reported in the May 1 The Journal of Clinical Investigation by scientists at The Rockefeller University and the University of California, Berkeley, show that people on weight-maintenance diets low in fat bu...
Science News

Gene Involved in Brain Development Identified

Astrotactin is a Nerve's Ticket to Ride the Glial Highway Scientists from The Rockefeller University and the Howard Hughes Medical Institute (HHMI) have for the first time identified a gene involved in directing nerve cells to their destinations as the brain grows. Their work appears in the April...
Science News

Mucosal Tissue Site of AIDS Virus Replication in Clinically Well HIV-Infected People

Virus appears to continuously replicate in tissues other than the lymph system The mucous membranes that lie above the lymph glands of the throat can be a major site of HIV-1 replication in people infected with the virus that causes AIDS but who have not yet developed clinical symptoms, report sc...
Science News

Light Sets the Molecular Controls of Circadian Rhythm

Light sets the circadian rhythm by eliminating a key protein needed for the molecular mechanism of the body's clock, according to scientists in the March 22 Science. The findings, from fruit fly studies, may help explain light's effect on the daily cycle that influences sleep, mental alertness, p...
Science News

Students from 16 New York Metro High Schools Compete in Science Fair

More than 70 juniors and seniors from 16 high schools in the metropolitan area will participate in the New York City regional competition of the International Science and Engineering Fair (ISEF), Friday and Saturday, March 15 and 16, at The Rockefeller University. Students earning first and secon...
Science News

Cells Leap Frog On The Way To Becoming Nerve Cells

Clues to movement may help design therapies for diseased, injured brains. Kids aren't the only ones who play Leap Frog. Cells destined to become nerves in the brain do too, according to scientists from The Rockefeller University, who published their findings in the Feb. 16 Science. The informatio...
Science News

Genes in Overweight Mice, Rats Carry Instructions for Leptin Receptor

The diabetes (db) gene in mice and the fatty (fa) gene in rats are not only the same genes, they also carry instructions to make the receptor for the protein called leptin, which is known to signal the body's fat, report scientists at The Rockefeller University and Millennium Pharmaceuticals Inc...
Science News

Mutations in a Leptin Receptor Cause Obesity in Mice

The weight-reducing effects of leptin, a hormone that signals the size of the body's fat stores, result from an interaction with a receptor in the brain's hypothalamus, report scientists from the Howard Hughes Medical Institute (HHMI) at The Rockefeller University in the Feb. 15 Nature. "When we...
Science News

Tracking Global Threats Via the Internet

International Monitoring of Emerging Infectious Diseases Provides Early Warnings A global system that allows for early warning, communications, diagnosis, prevention and control could greatly limit the public health threats of illness and death that emerging diseases pose, says Stephen S. Morse, ...
Science News

How Many People Can The Earth Support?

The number depends on nature and on human choices If the human population continued growing at the rate seen in 1990, the world would tally 694 billion people by the year 2150, the United Nations predicts. But that's not likely, says Joel E. Cohen, Ph.D., professor and head of the Laboratory of P...
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