Brightsurf Science News & Current Events

March 31, 1998
New Test Opens Window On Corrosive Free-Radical Activity In Individuals
Do antioxidant vitamins protect healthy people from free- radical damage?

Pitt Researchers Find Way To Block Cellular Growth Pathways And Inhibit Tumor Growth
At the annual American Association of Cancer Research meeting in New Orleans, University of Pittsburgh Cancer Institute researchers are presenting exciting evidence from animal models that blocking two cellular growth pathways causes tumor cells to die.

Strengthening The Link Between Service And Science-Learning
Service learning is a relatively new educational concept with old roots and provides a mechanism to bridge the gaps between science, universities and communities.

Researchers Discover Ways The Ulcer/Cancer Bug Can Trigger Disease
A mouse with a human gene has revealed why some people who harbor the peptic ulcer bacterium get sick while others don't.

How Many Helium Atoms Are Needed To Make A Superfluid ?
Physicists at the Max Planck Institute for Fluid Dynamics in Göttingen have discovered, as recently reported in Science (Vol.

American Heart Association Journal Report: Gene Therapy Findings Updated: Treatment Used In Patients With Blocked Leg Vessels
A gene therapy approach to circumvent leg blood vessels obstructed by atherosclerosis that was reported last fall at the American Heart Association's Scientific Sessions has been successfully extended to a larger group of patients.

Smog Spreading To South Pacific
Once a stranger in paradise, migrating smog has begun to pollute the skies over oceans in the southern hemisphere, resulting in tropospheric ozone levels near remote islands that would

New Evidence May Pave Way For Proving Exposure To Tobacco Smoke Has Caused An Individual's Cancer
Researchers have moved a significant step closer to proving a molecular connection between tobacco smoke and one of the key factors associated with some cases of lung cancer: specific mutations in the p53 tumor-suppressor gene of lung cells.

Women Who Smoke While Pregnant Pass Along Genetic Mutations To Their Babies, According To Pitt Researchers
Certain mothers who smoke while pregnant are at high risk of passing along genetic damage to their babies, according to study results presented by University of Pittsburgh scientists on Tuesday, March 31, at the annual American Association for Cancer Research meeting in New Orleans

Tiny Worm Reveals Workings Of Suspected Tumor Protein
The nematode C.elegans has revealed a biological function for a mysterious protein that may play a role in the growth of tumors.

Conference Brief: Balancing Risks And Benefits Of Pesticides On Foods
UC Davis toxicologist Carl Winter describes cases when pesticides actually increase the healthfulness of foods by reducing the levels of naturally occurring toxins produced by the plants or fungi on the plants.

Can The Economic Promise Of Drug Discovery Continue To Preserve The Suriname Forest?
Chemists, conservationists, and botanists working in Suriname to discover new pharmaceuticals and to give the country reasons to preserve its forests have identified one compound with anticancer activity that has made it through several stages of tests, identified another compound that can be enhanced as an as analog, begun to develop new assays for the plants shamans use, identified a new species of plant, and saved some of the tropical forest from wood harvesting.

How Did Life Begin? Biochemical Evolution On Chemical Surfaces
How did life begin on Earth? University of Chicago geophysicist Joseph V.

Common Mutations Linked To Increased Risk Of Breast Cancer
Women with common variations in the class of enzyme known as glutathione S-transferase (GST), which detoxify carcinogens, have an increased risk of developing breast cancer, according to researchers at the Johns Hopkins School of Public Health.

Molecular Defect Could Be Mysterious Cause Of Blood Disorder
A unique molecular defect in an unusual blood disorder first identified and described at Johns Hopkins by the late Sir William Osler almost a century ago has now been discovered by a team of his professional descendants.

Study Finds Some People Are 'Born To Smoke'
New research shows mounting evidence that some people are

Research Reveals Link Between Development And Contamination In Urban Watersheds
A U.S. Geological Survey study of urban watersheds across the United States reveals a link between a class of organic contaminants and urbanization.

Conference Brief: Innovative Application Technologies Target Agricultural Chemicals
Modern application methods involving computers, video cameras and even satellites are dramatically increasing the efficiency of agricultural chemical use while reducing undesired side effects, reports Ken Giles, a UC Davis agricultural engineer and authority on pest-control and crop protection technologies.

Motivating Muscles: New UD Study Might Help People With Paralysis 'Stay Strong Longer'
People who have suffered paralyzing injuries sometimes can regain limited control of their muscles, thanks to electrical stimulation techniques now under development, but pulse patterns should be varied to help patients stay strong longer, University of Delaware researchers report in the new Journal of Neurophysiology.

Oldest Astronomical Megalith Alignment Discovered In Egypt By Science Team
An assembly of huge stone slabs found in Egypt's Sahara Desert that date from about 6,500 years to 6,000 years ago has been confirmed by scientists to be the oldest known astronomical alignment of megaliths in the world.

Poor Heart Disease Patients Pay More For Medications, Get Less Preventative Care
Doctors know that heart disease patients who have a limited education and few economic resources are more likely to die, but now researchers at Duke University Medical Center are beginning to learn why: many can't pay for life saving medications and don't receive preventative care.

Ancient Meteorite Collapsed Margin, Spawned Giant Submarine Avalanches
A giant meteorite smacked the Earth 65 million years ago with the force of a million atomic bombs.

One Year Follow-Up Of Non-Invasive Angina Treatment Suggests A Lasting Benefit
A new non-surgical treatment for heart patients who experience the crushing chest pain of angina appears to confer lasting pain relief for a year or longer for many who undergo one-hour treatment sessions for several weeks, according to a study presented at the recent American College of Cardiology meeting in Atlanta.

Pitt Researchers Find Marker For Bladder Cancer
University of Pittsburgh Cancer Institute researchers are reporting at the annual American Association for Cancer Research meeting in New Orleans that they have found the first specific marker that distinguishes tissues from individuals with bladder cancer from those without disease and that can be easily isolated from urine.

UF Researchers Report Pilot Data From National Study Of Women With Heart Disease
Preliminary findings from a major national study of women with heart disease is revealing important new information, including the possibility of a promising new diagnostic tool for the half of the population that - despite popular perceptions -- has a death rate 10 times that of men.

Conference To Celebrate The Mathematics Of Leon Ehrenpries
Mathematicians have a tradition of honoring the field's living legends with a conference that celebrates their work.

Disagreements Between Clinical Trial Oversight Committees And Physicians Can Affect Drug Trial Results
After reviewing the data from four of the largest multi- center randomized clinical trials of new heart disease drugs, Duke University Medical Center researchers have found significant differences in heart attack....

Designing Materials: 'Pasta-Stringing' Strategy Shows Promise For Creating Enhanced Polymers, UD Prof Says
DALLAS--The properties of materials synthesized by strongly bonding together segments of different
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