Brightsurf Science News & Current Events

November 19, 2002
Researchers show COX-2 inhibitors interfere with bone growth, healing
Researchers at Stanford University Medical Center have found that selective COX-2 inhibitors - a class of medications widely prescribed for painful inflammatory conditions such as osteoarthritis and rheumatoid arthritis - interfere with the healing process after a bone fracture or cementless joint implant surgery.

Statin drugs may help patients with heart valve disease avoid surgery
A study by Mayo Clinic researchers indicates that narrowing of the heart's

UF study suggests schools boost empty calories to raise test scores
Faced with ever-increasing pressure to boost state-mandated test scores, some school districts have sought an advantage by pumping up their pupils with extra calories from junk food, a study conducted at the University of Florida suggests.

Non-invasive imaging technique detects plaques beginning to form in vessels
A new imaging method successfully identifies miniscule, young blood vessels that form during the development of plaques, according to a study in rabbits led by Washington University School of Medicine in St.

Study: Heart-assist device yields excellent survival
An implanted pumping device that helps a failing heart may improve survival for desperately ill patients and allow them to go home from the hospital, a new study finds -- whether they're waiting for a heart transplant or aren't eligible for one.

Social Science techniques are important to anti-terrorism programs
The American Psychological Association (APA) and the Behavioral Science Unit of the Federal Bureau of Investigation (FBI) released a report today on the potential culprits of terrorism and strategies derived from simulated scenarios that could prevent future acts of terrorism.

Genotyping targets individuals at high risk for H. pylori-associated stomach cancer
A new study indicates that people carrying certain strains of the Helicobacter pylori bacterium who also have specific genetic polymorphisms are more likely to develop stomach cancer than others.

Scientists reveal a new way viruses cause cells to self-destruct
Scientists at Brookhaven National Laboratory and their collaborators have discovered that some viruses can use the most abundant protein in the cells they are infecting to destroy the cells and allow new viruses to escape to infect others.

By repairing vessels, bone marrow cells slow atherosclerosis in mice
Duke University Medical Center researchers have shown that an age-related loss of specific stem cells that continually repair damage to blood vessels is critical to determining the onset and progression of atherosclerosis.

Heart gone haywire blamed in some sudden infant deaths
The world's first comprehensive population-based genetic autopsy suggests that an electrical problem in the heart may cause one out of 20 cases (5 percent) of sudden infant death syndrome (SIDS).

Three inferior prefrontal regions of the brain found receptive to somatosensory stimuli
Research has shown that three inferior prefrontal regions of the monkey's brain all receive somatosensory stimuli (indirect sensations to the body as opposed to specific stimuli such as light).

Influences of sex on gene expression discussed at annual conference
New discoveries on the interplay between genes and biological sex were the topic of discussions at the Third Annual Conference on Sex and Gene Expression, hosted by the Society for Women's Health Research.

Study of menopausal women finds no benefit from hormone therapy and antioxidant vitamins
A study found that postmenopausal women with heart disease who took hormone therapy and high dose antioxidant vitamins - either alone or in combination with hormones - did not have fewer heart attacks, deaths, or progression of coronary disease.

ACS grant to study estrogen's role in breast cancer
A $650,000 Research Scholar Grant from the American Cancer Society (ACS) will help Cornell University biologists learn more about how the hormone estrogen binds to growing cells in the human body -- including cells that produce breast cancer tumors.

Council for Responsible Nutrition questions WAVE study conclusions
The Council for Responsible Nutrition (CRN), a leading dietary supplement industry trade association, questions the Women's Angiographic Vitamin and Estrogen (WAVE) Trial investigators' conclusions and considers the design flawed and conclusions as based on statistically insignificant data.

Other highlights in the November 20 issue of JNCI
Other highlights include a study suggesting that arsenic exposure may influence the aggressiveness of bladder cancer, a study indicating that smoking is associated with a decreased the risk of classical Kaposi's sarcoma, a study associating leptin with the proliferation of breast cancer cells, and a study examining the use of allelic imbalance as a screening tool for ovarian cancer.

American Heart Association statement on high-protein, low-carbohydrate diet study
Media reports about a small study funded by the Robert C.

Large US airlines fear terrorists less than security measures, aviation expert charges
Large US airlines are now more afraid of security measures than of terrorist attacks, an attitude that raises the risk of another cataclysm, according to an aviation safety expert.

Economists may have much to offer child development experts
In examining how and why children thrive, child development experts frequently consider the role of economic factors, such as a family's income.

Diverse employment in Europe
In Denmark, 67 per cent of mothers of children under 16 are in full-time employment; in the Netherlands the proportion is only 11 per cent.

Heart devices, transplants have similar costs; what will we pay?
Implanting lifesaving heart pumps in people with severe congestive heart failure (CHF) costs about the same as heart, liver and other transplants.

Osama bin Laden and other thoroughly modern muslims take on the World
Osama bin Laden may have operated from a cave in one of the least-developed countries in the world, but his radical Islamic movement is thoroughly modern.

Targeting bone metastasis and hypercalcemia
Most cancer patients are not killed by their primary tumors but succumb to metastatic disease.

Nisqually earthquake damaged 300,000 Puget Sound households
Even thought it wasn't the 'big one,' last year's Nisqually earthquake caused damaged to nearly 300,000 or almost one out of every four households in Washington State's Puget Sound area.

New research approach to mental health issues
In March 2003, a major national symposium will address crucial issues in the mental health of Australians.

Ocean robots watching our climate
Robots are being installed deep in the Indian Ocean to help scientists understand Australia's changing climate.

Inaccurate arsenic test kits jeopardize water safety in Bangladesh and India
A new study of wells in Bangladesh and West Bengal, India, suggests the arsenic test kits used by field workers are frequently inaccurate.

Ovarian cancer detected in blood samples
Scientists at Johns Hopkins have successfully detected ovarian cancer using a blood test for DNA shed by tumors.

Researchers create DNA 'nanocircles' to probe the mystery of aging in human cells
A new form of nanotechnology developed at Stanford University may lead to a better understanding of the life and death of human cells.

Chest compression device outperforms manual CPR
A battery-operated compression belt buckled around the chest restores blood flow better than manual chest compressions and conventional CPR, according to a Johns Hopkins-led animal study.

US child care seriously lags behind that of Europe
While working parents in the United States struggle to find and afford private child care of even mediocre quality, parents in most European countries easily find publicly funded programs offering good-to-excellent care.

The growing Staphylococcus aureus arsenal
In the November 18 issue of the Journal of Clinical Investigation Eric Brown and colleagues from the Texas A&M University Health Science Center further investigate the role of another interesting member of the S. aureus artillery.

Robotic heart surgery: making repairs without lifting the hood
For the first time in the United States, open-heart surgery was performed without opening the chest, in more than a dozen patients.

Imatinib shows early promise against Ewing's sarcoma
Imatinib mesylate, also known as Gleevec, is showing early signs of promise in preclinical trials against Ewing's sarcoma, a bone tumor in children and adolescents.
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