Brightsurf Science News & Current Events

August 01, 2003
Sexually active young women often underestimate STD risk
Most sexually active single women believe they are at low risk for contracting sexually transmitted diseases (STDs), but a new study says their risk profiles are in fact similar to those women in higher risk populations.

Immune response to Alzheimer disease-related protein changes as we age
In the August 1 issue of the Journal of Clinical Investigation Howard Weiner and colleagues from Harvard Medical School and Brigham and Women's Hospital in Boston, Massachusetts, characterize the immune response to the Alzheimer disease (AD)-related protein Abeta in humans and report that as we age, some healthy, elderly individuals, as well as those with AD, exhibit elevated levels of T cells reactive towards Ab.

New gene found for children's lethal kidney disease
Scientists at the University of Michigan Medical School have identified a new gene that, when mutated, causes one type of nephronophthisis or NPHP - a rare disease that leads to kidney failure in infants and children.

Docs see missed opportunities for adult, kid vaccinations
American immunization rates could get a boost from practices like vaccinating people during unrelated medical visits and creating standing orders for vaccinations that personnel other than physicians can administer, according to new recommendations for childhood and adult vaccination.

FDA-approved drugs shown to lower Alzheimer disease-related protein levels in mice
Alzhemier disease is characterized by the progressive accumulation of amyloid beta protein (Abeta) in areas of the brain serving cognitive functions such as memory and language.

Common nutrients fed to pregnant mice altered their offspring's coat color
A startling scientific discovery about nutrition demonstrates that we are more than what we eat: we are likely what our mothers ate, too, according to scientists at the Duke Comprehensive Cancer Center.

mAgic VLIW presented at Stanford conference
Italian National Institute for Nuclear Physics (Infn) in collaboration with Ipitec and Atmel will unveil a new processor called mAgic VLIM - able to do a billion and a half operations per second, spending only half a watt, which means fifty times less than a personal computer with the same computing power - at the Hot Chips 15 conference in Stanford, California, August 18-19, 2003.

Household products database
The National Institutes of Health today unveiled a consumer's guide that provides easy-to-understand information on potential health effects of more than 2,000 ingredients contained in more than 4,000 household products.

Vitamin C may protect against ulcer-causing bacteria, study finds
A study led by researchers at the San Francisco VA Medical Center (SFVAMC) has found that the lower the level of vitamin C in the blood the more likely a person will become infected by Helicobacter pylori, the bacteria that can cause peptic ulcers and stomach cancer.

Mutation may help cause acute myeloid leukemia
Researchers at Washington University School of Medicine in St. Louis have found that a chromosome defect often seen in human acute myeloid leukemia (AML) can cause the same disease in mice when combined with a genetic defect in a molecule known as a tyrosine kinase receptor.

European economies show dramatic differences in innovativeness, says O.R. study
A study of 137 new product launches in 16 European countries shows the persistence of major regional disparity in the era of the European Union, according to an article in a journal of the Institute for Operations Research and the Management Sciences (INFORMS®).

'Pachinko chances'
Scientists from Imperial College London and AstraZeneca have advanced a new theory that animal and human metabolisms often work like a Japanese Pachinko type pinball machine.

Study of leishmania parasite may lead to vaccine, new treatments
Research at Washington University School of Medicine in St. Louis has revealed several essential functions of the molecule covering the surface of the Leishmania parasite.

Protect and serve
US military physicians involved in the

Antidepressant drugs may protect brain from damage due to depression
Studying women with histories of clinical depression, investigators at Washington University School of Medicine in St.

Physicians' emotional responses to patients' deaths increase with care length, says Pitt
The longer a doctor spends caring for a patient, the more vulnerable that doctor is to feelings of loss when that patient dies -- but doctors often suffer these emotions in silence.

Study: Search for life could include planets, stars unlike ours
The search for life on other planets could soon extend to solar systems that are very different from our own, according to a new study by an Ohio State University astronomer and his colleagues.

Stem cell death gives clue to brain cell survival
A signal that triggers half the stem cells in the developing brain to commit suicide at a stage where their survival will likely do more harm than good has been identified by researchers at the Medical College of Georgia and the University of Georgia.

Stress leads kids to unhealthy diets
Stressed-out 11-year-olds eat more unhealthful food than their less-anxious classmates and consume fewer nutritious meals and snacks, according to British researchers.

Jaws of clamworm are hardened by zinc say UCSB scientists
Scientists often look to nature for inspiration in the search for ways to make new materials.

CHRIS/Proba takes lead in Spanish campaign to help hyperspectral sensor development
Braving remorseless July temperatures, more than 40 researchers from across Europe gathered at the hot, dry heart of Spain - a site selected because of the unique opportunity to have three consecutive acquisitions over the area by CHRIS, the high-resolution imager aboard ESA's microsatellite Proba.

$13 million grant puts new herpes-based AIDS vaccine on fast track
In an unlikely twist in the fight against AIDS, scientists have re-engineered a herpes virus - stripping most of its DNA and replacing it with small snippets of DNA from the AIDS virus - in a bid to create a new type of AIDS vaccine.

A new twist on DNA
Using a tool kit of lasers, tiny beads and a Lego set, Howard Hughes Medical Institute researchers have made the first measurement of the torsional, or twisting, elasticity of a single molecule of DNA.

Mirrors can make women feel worse about working out
Mirrored walls are a regular feature of gym décor, but new research suggests that the reflections may make some women feel worse after their workouts.

China's three Gorges Dam
Water churns through diversion holes in the world's largest dam - China's Three Gorges project on the Yangtze River - the image was caught by ESA's Proba satellite this week. 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