Search Content | Science News

SUPPORT SCIENCE NEWS.

Science News is a nonprofit.

Support us by subscribing now.

Search Content

E.g., 08/18/2019
E.g., 08/18/2019
Your search has returned 232 articles:
  • News

    Tea compound aids dying brain cells

    From Washington, D.C., at the Fourth International Scientific Symposium on Tea and Human Health

    A constituent of green tea can revive moribund brain cells, Israeli researchers report. The team experimented with animal neurons that had been chemically poisoned to model the death of dopamine-producing cells in Parkinson's disease.

    In a test-tube study, low doses of epigallocatechin...

    09/26/2007 - 12:04 Biomedicine
  • News

    Universities seek armchair astronomers

    Nonscientists and researchers alike have a chance to see something no one else ever has—a few of the million far-off galaxies that the Sloan Digital Sky Survey has recently photographed. The price of admission: People viewing the new images online must do a little work for the astronomers in charge, classifying individual galaxies as either spiral armed or elliptical collections of stars....

    07/23/2007 - 14:59 Humans & Society
  • News

    Age and gender affect soot's toxic impact

    From second to second, blood vessels must alternately constrict and dilate to regulate blood flow. That ability can diminish markedly in rodent vessels exposed to an oily constituent of diesel soot, researchers report.

    The team took arteries from rats' thighs and exposed them to the soot chemical phenanthraquinone.

    Vessels came from female rats that were 6, 14, and 24 months old—...

    06/12/2007 - 13:23 Earth & Environment
  • News

    Slimming on oolong

    Without skimping on portions, rats eating diets including oolong tea gain less weight than those dining teafree, a new study finds. The tea apparently impairs the body's ability to absorb fat.

    The finding supports a weight-control strategy—oolong consumption—advocated by practitioners of traditional Chinese medicine, note Lauren E. Budd and her colleagues at the University of California...

    05/15/2007 - 15:09 Nutrition
  • News

    Alzheimer's marker yields blood test

    From Washington, D.C., at the Experimental Biology 2007 meeting

    Despite memory-test and brain-imaging advances in recent years, diagnosis of Alzheimer's disease remains a challenge. Usually, only the presence of clumps of the protein amyloid-beta in the brain at autopsy confirms that a person's dementia was Alzheimer's. A study in mice, however, suggests that a test for excess amyloid-...

    05/08/2007 - 13:55
  • News

    Pollution Fallout: Are unattractive males Great-gram's fault?

    A new study of mate preferences in rodents raises the prospect that pollutant exposures can have behavioral repercussions that persist generation after generation. In the experiment, female rats shunned males whose grandfathers had been exposed in the womb to a fungicide used on fruit crops.

    Though brief, the vinclozolin exposures occurred when the fetal males' reproductive organs were...

    03/28/2007 - 12:49 Earth & Environment