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Science News | Science Current Events | Brightsurf | May 31, 2001


PET scans identify breast-cancer patients who will respond to hormone therapy
New research shows that PET scans can often identify which women with advanced breast cancer are likely to respond to hormone therapies such as tamoxifen.
Combination of drug and behavior interventions are most effective for treating teenagers with ADHD
Ritalin and other stimulants have become the standard treatment for attention deficit hyperactivity disorder (ADHD) in elementary-age children because of their ability to curb disruptive and defiant behavior and allow children to focus.
Stress-induced blood pressure spike linked to increased stroke risk
For the first time, stress has been linked to increased stroke risk in a population study of middle-aged white men, researchers report in the June issue of Stroke.
African Americans have a higher rate of dementia due to strokes
African Americans have a higher rate of dementia due to strokes and a lower prevalence of dementia stemming from Parkinson's Disease than do Caucasians, according to a study by Yale researchers published in the Journal of the American Geriatric Society.
Breast feeding rates in Scottish mothers improve but will fail to hit Government targets
In 1994 the Scottish Office set a target that by 2005, half of all mothers should still be breastfeeding when their babies are six weeks old.
Alzheimer's Disease meets its boxing match: Molecular link between Alzheimer's and "Punch Drunk" syndrome found in humans
Abnormal tau proteins, which form fibrous tangles in the brains of Alzheimer's Disease sufferers, are identical to abnormal tau proteins found in patients with Dementia Pugilistica (DP), according to researchers at the University of Pennsylvania Medical Center.
Making science museums more dynamic, beneficial
Are science and natural history museums warehouses filled with insignificant artifacts, or vital educational centers that shed light on critical contemporary issues?
Scientists record extraordinary sounds made by minke whales
Minke whale vocalizations are rarely reported, and some experts believed the species rarely made any sounds at all.
Shift from forest to crops lowers temperatures
The conversion of forests to croplands in the Midwest over the last century has led to a measurable cooling of the region's climate.
Penn paleontologists locate a new genus of colossal dinosaur along an ancient coastline
University of Pennsylvania researchers have unearthed a new genus of gargantuan dinosaur in a corner of Egypt that paleontologists had all but ignored since World War II, when earlier finds stored in German museums were blasted from existence by Allied warplanes.
Highlights from Stroke, June 2001
Mexican-Americans' study finds barriers to stroke treatment Mexican Americans are less likely to recognize the risk factors of stroke, to call 9-1-1 for stroke, or know that effective stroke therapy exists - significant barriers to both stroke treatment and prevention - according to a report in the June issue of Stroke.
Specialists more likely to recommend appropriate treatments for HIV patients
Generalist physicians and those with little experience caring for HIV/AIDS patients need expert advice for the increasingly complex process of treating them, suggest the results of a survey.
Evolution at a snail's pace: It's faster than you think
By studying genetic data and fossil records of a common California snail, a biologist from Louisiana State University has found that a change in a species' territory can bring on rapid evolutionary changes.
Cosmos Studios, MPH Entertainment and the A&E Network announce capture of major scientific discovery on film
Discovery of new genus of dinosaurs- second most massive ever to walk the earth.
Student-made window guard may save kids from deadly falls
Two Johns Hopkins undergraduates have invented a new type of locking window guard to protect kids in high-rise apartments.
Food safety: French discovery explains how Listeria penetrates the body, and may suggest new drug delivery strategies
Pasteur Institute scientists have discovered exactly how the pathogen, Listeria monocytogenes penetrates the body to sicken and sometimes kill vulnerable individuals who eat contaminated foods.
Common genetic mutation linked to uterine cancer
Scientists have discovered nearly half of pre-menopausal women carry sub-microscopic pre-malignant lesions that may mark them at higher risk of developing uterine cancer later on in life.
Discovery of 'tidal giant'--a new Egyptian dinosaur--reported in Science
Researchers report the discovery of a massive partial skeleton of a new species of late Cretaceous sauropod dinosaur from Egypt.
Study of marine snail suggests conservation efforts should consider factors beyond genetic diversity
A study of climate-induced evolutionary change in a California intertidal snail suggests that resource managers shouldn't focus exclusively on genetic diversity when developing conservation plans for protecting endangered or threatened species.
Higher fat diets show same positive effects on LDLs as low fat diet
Three diets high in monounsaturated fats from either olive oil, peanut oil, or peanuts and peanut butter had the same favorable effects on low density lipoproteins (LDLs, the
Time targets for urgent caesarean delivery are difficult to achieve but may not be necessary
Two papers and an editorial in this week's BMJ describe the difficulties in meeting the target of 30 minutes between the decision that an urgent caesarean section is necessary and delivering the baby.
Penn researchers: Protein may be the essential piece to the pathway by which insulin controls blood sugar
Researchers have mimicked the effects of insulin resistance of human type 2 diabetes by creating mice that lack a functional gene for the enzyme Akt2.
Can voting Labour lead to an early demise?
In this week's BMJ, Dorling, Davey Smith and Shaw describe how mortality relates to voting patterns in different areas.
Study finds personal choices yield long life
The release details the findings of an article in the June 2001 American Journal of Psychiatry which concludes that longevity has as much to do with personal choice as with genes.
Johns Hopkins first in AIDS NIH funding for FY 00
It's been 20 years since the first mysterious reports of HIV/AIDS infections, and researchers at John Hopkins continue their quest to better understand and cure this deadly disease.
ESA recommends cautious approach to releasing GMOs into the environment
The Ecological Society of America issued words of caution today in an official statement on the use of genetically modified organisms.
Increased uterine cancer seen in mice injected with genistein, a soy estrogen, as newborns
Infant mice given genistein developed cancer of the uterus later in life, scientists at the National Institute of Environmental Health Sciences reported today.
Disability-causing artery disease of the legs often overlooked
A condition affecting the arteries of the legs leads to significant disability among the elderly and is underdiagnosed by doctors.
UC archaeologist to launch excavations at Bronze Age harbor town in Cyprus
A University of Cincinnati archaeologist will open new excavations June 18 on the island of Cyprus in hopes of discovering whether a Bronze Age city was actually an important trading center for the Middle East, Egypt and Greece.
Lack of access to food linked to increased medical utilization among diabetics
In an analysis of data on 1,503 people with diabetes gleaned from a survey by the National Center for Health Statistics, those who did not have enough to eat due to financial constraints were more than twice as likely to report having poor or fair health than those who did.
Loss of enzyme produces diabetes-like symptoms
HHMI researchers have identified a protein that plays an important role in signaling muscle cells to take up glucose from the bloodstream.
New research can improve regional U.S. snowfall forecasts during el niños and la niñas winters
For the first time, researchers have identified how El Niños and La Niñas change snowfall in specific regions of the continental United States.
UT Southwestern researchers show tumor-suppressor genes linked to insulin signaling
Researchers at UT Southwestern Medical Center at Dallas have discovered a link between insulin signaling and certain tumor-suppressor genes that may lead to significant progress in diabetes and cancer research.
Tropical glaciers formed while earth was giant snowball
Municipalities seeking to limit harmful air pollution typically target primary pollutants with the assumption that limiting sulfur dioxide, for example, will limit the formation of sulfate particulates in the air, but a team of Penn State meteorologists suggests that, depending on the location, other pollutants may actually be the limiting factors.
Probiotic milk may help prevent common childhood infections
Probiotic milk (milk containing bacteria that colonise the intestine and stimulate antibody production) may slightly reduce respiratory infections among children attending day care centres, finds a study in this week's BMJ.
Lesbians' health may be threatened by lack of Pap smears
Lesbians may risk their health because many do not have Pap smears as often as other women.

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