Brightsurf Science News & Current Events

November 08, 1999
Human genome bears a virus related to HIV-1
Tiny snippets of DNA, buried in the human genome, reveal that an ancient family of viruses took up permanent residence in our simian ancestors some 30 million years ago.

Mood changes in depressives predict success of therapy
A night without sleep can sometimes provide temporary relief for depressives.

Exercise improves learning and memory
A study in adult mice by Howard Hughes Medical Institute investigator Terrence Sejnowski has shown that regular voluntary exercise somehow allows new nerve cells to grow in the part of the brain that manages long-term memories.

Exercise protects against symptoms of stress
Leisure physical activity may help guard people against physical symptoms and anxiety associated with life's daily stresses, according to a recent study of college students.

Mayo Clinic participates in test of futuristic automobile crash notification system
ROCHESTER, MINN. -- Officials from Mayo Clinic, Minnesota Department of Transportation (Mn/DOT), Minnesota State Patrol and Veridian Corporation today demonstrated the technology behind an operational field test of Mayday Plus, a futuristic automobile crash notification system.

Wake Forest researcher reports cholesterol-lowering drug reduces strokes
A drug already being used to lower cholesterol and prevent heart attacks sharply reduced strokes in patients who already had heart disease, a Wake Forest University researcher told the American Heart Association meeting today (Nov.

Memory uses separate information pathways
The memory has separate pathways for different types of information.

Emotional support during conflict situations elevates blood pressure in African-American boys
Among African-American adolescents, boys who received emotional support had higher blood pressure reactivity than boys who received either problem-solving or no support when dealing with conflict situations, according to scientists at Virginia Commonwealth University.

Purdue researcher finds genetic link to calcium regulation in cells
A Purdue University researcher has discovered a gene in fruit flies that may play a key role in regulating the flow of calcium into cells.

Climate change will have major Northwest impact in next 50 years
Climate models show the three-state Columbia River Basin region is likely to experience significantly higher temperatures and greater precipitation 50 years from now, largely because of human causes.

More bad news for cocaine users: Drug can triple risk of aneurysm
The bad news continues to mount for cocaine users. Cocaine has already been linked to an increased risk of heart attack and stroke.

NASA engineers to operate center for monitoring leonids shower; scientists to launch balloon for clear view of leonids meteors
To keep orbiting satellites operating smoothly, Marshall Center engineers will monitor the impending Leonids meteor shower around the clock.

Scientists identify new pathway of antidepressant action
Scientists at UC San Francisco have discovered a new chemical pathway in the brain by which the most common antidepressants may alter mood.

Physical activity and a low-fat, reduced-calorie diet prevent weight gain in menopausal women, find University of Pittsburgh researchers
Women can avoid weight gain that often accompanies menopause through exercise and a low-fat, reduced-calorie diet, according to a University of Pittsburgh study, the first to demonstrate prevention of weight gain in healthy, but at-risk women.

Dramatic geographic variation in heart attack deaths among men explained by University of Pittsburgh researcher at American Heart Association meeting
Differences in smoking patterns and education levels among men in various states may account for wide fluctuations in the cardiovascular disease rates, according to a University of Pittsburgh Graduate School of Public Health study.

UK College of Medicine researchers develop novel technologies to study neural genes
University of Kentucky College of Medicine researchers are refining novel technologies to study the genes that are active, or expressed, in the central nervous system.

'Chasing the dragon' heroin use causes severe brain dysfunction, death
'Chasing the dragon,' a form of heroin use in which the drug is heated and the resulting vapor is inhaled, can produce a progressive and permanent brain disorder and even death, according to a study published in the November 10 issue of Neurology, the American Academy of Neurology's scientific journal.

Post-traumatic stress disorder may result in heart disease
Combat veterans with post-traumatic stress disorder (PTSD) appear to be at higher risk for coronary heart disease, according to a recent study of U.S.

Social factors important in breast cancer screening decisions
Women who perceive that regular mammography screening is a common, acceptable practice among their peers are more likely than others to get mammograms regularly, new research shows.

Alcohol problems hinder smoking cessation
People with current or past alcohol problems have more trouble quitting smoking and are more dependent on nicotine than people who have never had alcohol problems, new research shows.

Climate change did not influence prehistoric survival techniques in the tropics
One standard archaeological theory says that at the end of the last ice age prehistoric people in the tropics changed their stone tools.

Novel neurotransmitter overturns laws of biology, offers potential for stroke treatment
Johns Hopkins scientists have identified a new and unusual nerve transmitter in the brain, one that overturns certain long-cherished laws about how nerve cells behave.

New treadmill 'scores' may help physicians better diagnose heart disease
A new scoring system used in treadmill testing may help physicians improve their accuracy in diagnosing heart disease, according to a study presented today at the American Heart Association Scientific Sessions.

NTP-CERHR announces the Second Phthalates Expert Panel Meeting to be held December 15-17, 1999
The National Toxicology Program Center for the Evaluation of Risks to Human Reproduction (CERHR) will hold the second meeting of an Expert Panel to evaluate seven Phthalate esters -- plasticizers -- December 15-17, 1999 at the Hawthorn Suites (Research Triangle Park), 300 Meredith Drive, Durham, North Carolina 27713.

Staying involved helps breast cancer survivors
For breast cancer survivors, taking control over aspects of the course of their follow-up care can improve their quality of life, a new study reports.

UCSF Study Finds Drug Abuse Treatment Programs Can Be Effective in Changing High-Risk Behavior for HIV
Drug users participating in a treatment program based on a

Heart disease begins at a young age
Although symptoms of heart disease may not show up until a person is middle-aged or older, a new study presented today at the American Heart Association Scientific Sessions finds heart disease actually begins developing in childhood.

NASA's Chandra X-ray Observatory chosen among 'Best of What's New' by 'Popular Science' magazine
NASA's Chandra X-ray Observatory, the world's largest and most powerful X-ray telescope, has been chosen as one of the

Cranfield pioneers coach safety research
Cranfield University has been working with Dutch coach manufacturers Bova to develop a new coach structure which will dramatically increase the survival rate of passengers in the event of a crash.

Chronic fatigue syndrome not fully understood
Chronic fatigue syndrome (CFS) is a

Study finds reliability problems with nerve test for carpal tunnel syndrome
A nerve test widely used to diagnose carpal tunnel syndrome shouldn't be relied upon to answer the question of whether a person has the painful hand condition.

Doctors of Chiropractic more qualified than osteopaths, PTs and MDs in spinal manipulation/adjustment, according to the American Chiropractic Assoc.
The ACA is embarking on a national campaign to tell the public that doctors of chiropractic are
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