Brightsurf Science News & Current Events

June 08, 1999
Transplanted neural stem cells migrate throughout the abnormal brain, reduce disease symptoms
For years, researchers have probed the mysteries of neural stem cells -- immature cells that can differentiate into all the cell types that make up the brain -- with the idea that they might be useful for treating brain disorders such as Parkinson's disease.

Postmenopausal hormone replacement therapy linked to increased risk for certain types of rarely occurring breast cancer
Using hormone replacement therapy during menopause increases a woman's risk for developing some types of breast cancer that occur rarely, but not the more commonly occurring ductal carcinoma that remains confined to the site of origin or invasive ductal or lobular cancer, Northwestern University and Mayo Clinic researchers report.

Major study finds effects of child care quality linger into the second grade
A major national study that examined whether quality in child care makes a difference in children's intellectual and social readiness for school showed that indeed it does.

Horseshoe crab studies providing new insight into valuable ancient creatures
At the end of May and during June, hundreds of thousands of these prehistoric creatures emerge from the waters of Delaware Bay to lay and fertilize their eggs in the wet sand.

Cedars-Sinai Medical Center study identifies for the first time a molecular mechanism behind hormonal response to stress
A two-year study led by Shlomo Melmed, M.D., of Cedars-Sinai Medical Center has identified for the first time a molecular mechanism that transduces (translates and conveys) stress signals from the brain to other parts of the body after physical or psychological trauma.

Report: tuberculosis control programs inadequate in developing countries
Swelling HIV infection rates continue driving a tuberculosis epidemic in sub-Saharan Africa, and world health policy makers need to better account for the intertwining of the two diseases, say Johns Hopkins researchers in a new report.

Colorado State hurricane forecasters continue to call for active season; Caribbean, Mexican landfall probabilities predicted
Colorado State University hurricane forecaster William Gray and his team are standing by earlier predictions of an active hurricane season similar to last year's, with 14 tropical storms, nine hurricanes and four intense hurricanes expected in 1999.

NASA physicist realizes her dream by discovering two new stars with space-based observatory
As a child, NASA astrophysicist Dr. Colleen Wilson-Hodge and her father observed craters on the Moon with a small telescope.

Technology transfer results in new Internet technologies
A new company formed by three computer scientists at Washington University in St.

New mechanism explains Alzheimer's damage
Harvard Medical School researchers say they have found a

Three bolts from the blue
Does lightning affect the ozone layer? What causes

Massive pollution documented over Indian Ocean
An international group of scientists has documented widespread pollution covering about 100 million square kilometers of the tropical Indian Ocean -- roughly the same area as the continental United States.

Carnegie Mellon research says accountability is not a social panacea; in fact it makes some problems worse
Some of the talk about making people and organizations more accountable may amount to just that -- talk with little real payoff, a Carnegie Mellon University study shows.

The Foundation for Genetic Education and Counseling
A new foundation devoted to education and counseling about complex human diseases has been formed.

New elements 116 and 118 discovered at Lawrence Berkeley National Lab
Lawrence Berkeley National Lab researchers have announced the discovery of new

Scientist explain a drug's paradoxical action: discovery may lead to new therapies for breast cancer, early puberty
Now scientists at UC San Francisco, working with a new experimental model that turns yeast cells into little versions of human adrenal glands, have learned the answer: they have shown how the drug, medroxyprogesterone acetate (MPA) inhibits one of the key enzymes necessary to produce steroid hormones.

CU-Boulder researchers involved in novel universe creation experiment
More than a dozen faculty and students from the University of Colorado at Boulder are part of an international team that has launched an unprecedented experiment in an attempt to explain how the universe's matter came to exist. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to