Brightsurf Science News & Current Events

April 25, 2002
Mexican Americans more likely to die of heart disease than Caucasians
For years, scientists have been puzzled by reports that Mexican Americans, who have high rates of obesity and diabetes, are less likely than Caucasians to die from heart disease.

New research adds to evidence that acetaminophen may prevent colon cancer in lab animals
Research findings presented at the International Symposium on Antimutagenesis and Anticarcinogenesis at New York Medical College suggest that acetaminophen, the medicine in Tylenol, may have powerful protective effects on colon cells exposed to a cancer-causing agent.

Standards of medical care on adventure holidays raise concerns
Standards of medical care and safety provided by tour operators on adventure holidays in remote mountainous regions of the world are called into question in this week's BMJ.

Optical Society of America announces 2002 award winners
The Optical Society of America (OSA) is proud to announce the distinguished recipients of its 2002 awards.

Satellite data to predict plankton blooms by analyzing ocean color
Scientists analyzing satellite data on ocean color are gaining new insights into ocean productivity and climate.

Erich Bloch honored with Vannevar Bush Award for long-running contributions to S&T
The National Science Board (NSB) has named Erich Bloch for its highest award for scientific achievement and statesmanship.

Need, potential for Hepatitis C vaccine highlighted by Hopkins study
Humans may be able to develop immunity to hepatitis C virus, according to a study by Hopkins researchers published in the April 26 issue of The Lancet, findings that add to a growing body of evidence that immunity to the virus can be acquired.

What causes patients to delay seeking medical help?
What causes patients with symptoms of a heart attack to delay seeking medical help?

USF neuroscientists study potential of cord blood cells to rescue aging brain
As we age, a particularly troubling outcome is that some of us will start to show signs of memory loss.

Women suffering from anorexia are 50 times more likely to commit suicide
In a study of suicidal behavior of 246 women with eating disorders over a span of 8.6 years, Debra L.

Safe, secure and inexpensive power from newest genearations of nuclear reactors
Researchers writing for the latest issue of Physics Today magazine report that more and more people are reconsidering nuclear power as an alternative to fossil fuel.

High-intensity physical training improves cardiovascular fitness in obese adolescents
In a study in the American Journal of Clinical Nutrition of obese adolescents, Gutin et al. investigated whether lifestyle education by itself, or in combination with moderate- or with high-intensity physical training, provided the most significant advantages in the fitness and body composition of juveniles.

Manganese blocks HIV replication; Lab finding points to potential new class of HIV treatments
Johns Hopkins scientists have found that simply increasing manganese in cells can halt HIV's unusual ability to process its genetic information backwards, providing a new way to target the process's key driver, an enzyme called reverse transcriptase.

Gene plays key evolutionary role in food-gathering behaviors
A new discovery in the brain of honeybees has researchers at three institutions suggesting that the gene they studied has played a key evolutionary role in the changes of food-gathering behaviors in many creatures.

UT Southwestern gerontologist offers ways to find the right nursing home
A recent study conducted by the Department of Health and Human Services found that nine out of 10 nursing homes in the United States lacked adequate staffing to properly care for patients.

Cancer patients' loss of taste, smell compromises treatment
Cancer patients who experience taste and smell loss because of the disease and its treatments are at high risk for weight loss and nutritional deficits that can compromise their overall treatment success, according to a small study of 33 lung cancer patients at Duke University Medical Center.

Controlling blood pressure early prevents heart disease in elderly
Hypertensive elderly individuals who begin blood pressure therapy before signs of heart disease appear may completely avoid the associated cardiovascular problems, according to a University of Pittsburgh researcher who presented these findings at the American Heart Association's 42nd Annual Conference on Cardiovascular Disease and Epidemiology Prevention.

Stanford researcher dusts off old drug; uncovers new anti-rejection properties
Thirty years ago, researchers scooped some dirt on Easter Island and discovered bacteria that led to a potential anti-fungal drug.

Health benefits of leanness blown away by cigarette smoke
Although smokers tended to be leaner than nonsmokers overall, their tobacco use negated the heart-protective benefits usually associated with low-body fat, according to an analysis of 23 studies.

Search for schizophrenia genes takes an unplanned turn
Despite promising evidence that a gene closely linked to schizophrenia would be found on human chromosome number 1, an international team of scientists who scoured the chromosome in more than 1,900 patients concludes it isn't there.

Hungry children: more depression, suicide, low grades
Children who sometimes don't have enough to eat do worse in school and have many more social and psychological problems than kids who have enough to eat, according to a Cornell University study.

Simple breath test may replace endoscopy
A simple breath test for detecting H pylori infection is as effective and safe as endoscopy and is less uncomfortable and distressing for the patient, conclude researchers in this week's BMJ.

Color of ocean yields global warming clues
A green ocean is a productive ocean; the light from the sun helps the phytoplankton -- tiny ocean plants -- to be productive.

Sex at birth linked to latitude
In Europe, significantly more boys are born in southern countries than in northern latitudes, whereas the reverse is found in North America.

Poor hearing common among elderly people in the UK
Reduced hearing is common-and the provision of hearing aids inadequate-among elderly people in the UK, conclude authors of a study in this week's issue of THE LANCET.

Nutrition status affects cognitive impairment in the elderly
Publishing in the American Journal of Clinical Nutrition, Duthie et al. investigated the associations between cognitive impairment and plasma concentrations of folate, vitamin B-12, and homocysteine in 331 older subjects.

Calcification of breast blood vessels may predict stroke risk
Women whose routine mammograms revealed calcification in the blood vessels of the breasts were at increased risk for stroke, although those who had calcification only in their milk ducts were not, according to a long-term study presented at the American Heart Association's Asia Pacific Scientific Forum.

We have ignition!
Researchers at Rensselaer have discovered a surprising new property of single-walled carbon nanotubes (SWCN).

Dynamic brain atlas may help diagnose patients using advanced brain scans
Scientists have today unveiled new technology that may one day help doctors identify subtle brain abnormalities that underly major diseases including many psychiatric disorders and dementia.

Researchers determine the influence of bone density results in adolescents with anorexia
Physicians have recognized that early and severe osteoporosis is a serious consequence of anorexia nervosa.

Dutch study links tea drinking to reduced heart attack risk
Tea is a rich source of dietary flavonoids, which have been shown to have a protective effect against ischemic heart disease through their antioxidant properties.

Hospital mortuary services need regular inspection
Recent stories about improper storage of bodies and organs in hospital mortuaries have generated public interest in both pathology and mortuary services.

Smart suture is first application of novel MIT polymer
A smart suture that ties itself into the perfect knot kicks off the first of many potential medical applications for new biodegradable plastics with

UM outreach programs increase kidney transplants among African-Americans
Transplant surgeons at the University of Maryland Medical Center say they have successfully reduced barriers to kidney transplantation for African-Americans to cut the median waiting time for transplant in half.

Antioxidant gene mutation gives free radicals free reign
A gene mutation for a molecule that helps the body ward off free radicals almost doubles the risk of developing atherosclerotic heart or brain vessel disease, according to a study presented today at the American Heart Association's Asia Pacific Scientific Forum.

Single gene leap led to flea-borne transmission of plague bacterium
A single gene change in a relatively benign recent ancestor of the bacterium that causes bubonic plague played a key role in the evolution of the deadly disease.

Declining physical activity levels are associated with increasing obesity
A series of cross-sectional surveys of Finnish men and women were conducted with the aim of assessing the relationship between lifestyle variables and increased obesity over a 15-year period.

Promoting wound repair
Researchers at The Scripps Research Institute (TSRI) have identified a major role in promoting wound repair played by a mysterious type of immune cell that resides mainly in the skin and gut--the gamma-delta T cell.

Tobacco settlement lawyers discuss strategy at NU conference
Northeastern University's Tobacco Products Liability Project gathers attorneys who have secured settlements from tobacco companies to discuss strategies and tactics.

New focus award finalists announced
The Optical Society of America (OSA) has announced the 2002 New Focus Students Award finalists. 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