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Science News Archive March 2000 - Page 3


Page 3 of 7

Tucson researcher receives national award

Chemist F. Ann Walker received the Francis P. Garvan-John M. Olin Medal for her research on heme proteins, including nitrophorin, a molecule found in kissing bugs that releases nitric oxide to facilitate feeding. Her work provides insight into the function of heme proteins and their role in the immune system.

St. Paul researcher receives national award

Philip Portoghese, a medicinal chemist at the University of Minnesota, has received the Alfred Burger Award in Medicinal Chemistry from the American Chemical Society for his work on opioid receptors. His research reveals how drugs such as morphine interact with these receptors, enabling the creation of new, more effective drugs.

Albuquerque researcher receives national award

George Samara, a chemist from Albuquerque, NM, has been honored by the American Chemical Society for his exceptional research management skills. He was awarded the Earle B. Barnes Award for Leadership in Chemical Research Management for his contributions to advancing solar cell technology and developing unique semiconducting materials.

Researchers stalk 'sweet tooth' gene

Researchers at the Monell Chemical Senses Center have narrowed the search for a gene responsible for sweet preference in mice to a specific area of chromosome 4. This region is thought to be a likely candidate for a 'sweet taste gene' that affects both mouse and human perception of sweetness.

Tires of the future

Experts will discuss new synthetic elastomers designed to improve tire traction properties, as well as surface-modified mineral fillers that could increase fuel economy in vehicles. Researchers will also predict fatigue in fiber-reinforced rubber composite laminates in tires.

Cancer-preventive potential of white tea

Researchers found that white tea contains higher levels of polyphenols than green tea, which may contribute to its enhanced cancer-fighting potential. White tea was shown to inhibit DNA mutations more efficiently than green tea in laboratory tests, suggesting it may have a stronger role in preventing colon cancer.

Chapel Hill researcher receives national award

Chemist Slayton Evans Jr. of Chapel Hill has been honored by the American Chemical Society for opening new doors in science, especially chemistry, for minority high-school and college students. He was recognized for fostering programs and scholarships to encourage minority scholarship in his 25 years at the University of North Carolina.

New plastic heals damaged nerves

Researchers have developed a new biomaterial that uses an electricity-conducting polymer in combination with a naturally occurring sugar molecule to stimulate nerve growth. The material breaks down over time, allowing the nerve to grow and reach its target weeks or months later.

Emphysema linked to smoking marijuana

A recent study found that smoking cannabis regularly may increase the risk of developing emphysema, a disease that damages lung tissue and reduces surface area. The study examined four young men who smoked heavily and found large areas of their lungs had disappeared and been replaced with cysts.

SourceBMJ Specialty Journals·JournalThorax·DateMar 20, 2000

How safe is the wait?

Patients awaiting coronary artery bypass grafting (CABG) in Ontario face higher mortality risk compared to the general population. However, a new study found that those on the waitlist may actually have similar or decreased vital risk when compared to patients living with coronary artery disease.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMar 20, 2000

USGS information available on recent MTBE risk findings

A new study from the USGS and Oregon Graduate Institute reveals that up to 9,000 community water wells in 31 states may be contaminated with MTBE due to proximity to leaking underground storage tanks. The EPA has announced plans to phase out MTBE use in gasoline, but it will persist in the environment for at least a decade.

SourceU.S. Geological Survey·JournalEnvironmental Science & Technology·DateMar 20, 2000

UCSD-Salk Institute awards presented to Christopher Reeve, Dr. Donald Seldin, Genentech, Inc. and Dr. Dennis Slamon

Actor Christopher Reeve was awarded the UCSD-Salk Institute Service Award for his tireless efforts to raise awareness of the importance of basic research for human biology and disease. The award recognized his unwavering personal campaign to increase public and legislative awareness of the need to support basic research in health.