A study of nearly three million fitness club members found a small but definite increase in risk of exercise-related fatal heart attacks or strokes among sporadic exercisers. Regular exercise is recommended to lower this risk, particularly for those with cardiovascular disease.
Researchers found that pre-menopausal levels of LDL cholesterol and cardiovascular risk factors were predictive of post-menopausal coronary artery calcium deposits. Women who developed coronary calcium were significantly heavier with higher body mass index and larger waists.
A new UCLA study reveals an inverse relationship between depression and strong ties to the African American community, independent of demographic and health factors. Women with strong ethnic identity experienced lower levels of depression and less excess weight.
Gary Leal, a professor of chemical engineering at the University of California, Santa Barbara, has been awarded the Society of Rheology's 2000 Bingham Medal. His research on polymeric liquids, liquid crystalline polymers, and suspensions/emulsions has significantly advanced the field of rheology.
A new study by UC Berkeley researchers reveals that premature birth and low birthweight significantly exacerbate asthma symptoms in children when exposed to smog. Children born prematurely or with low birthweight are more likely to experience severe wheezing, coughing, and shortness of breath on days with high air pollution levels.
Two studies found that women with the four risk factors had five times the risk of death as men, and children with metabolic syndrome risk factors were more likely to be obese. Researchers emphasize the need to prevent obesity in young people to reverse alarming trends in heart disease.
Researchers found that African-American Medicare patients received implantable defibrillator devices at one-third the rate of whites and women at less than half the rate of men. The disparity is significant, with defibrillators proven to be superior to existing medical treatments for severe cardiac arrhythmias.
A study by Mayo Clinic researchers reveals a possible cause of sudden deaths among men using Viagra, highlighting the need for safe use guidelines. The interaction between Viagra and nitrates can reduce blood flow through critically narrowed coronary arteries, leading to a life-threatening drop in oxygen supply.
James R. Stewart, a pioneer in scuba diving, was inducted into the NAUI Hall of Honor for his invaluable work on developing training procedures and data collecting techniques. He is recognized as an expert on interactions between divers and marine environments.
A German research team found that people who inherit two copies of the GNB3 825T allele gene have a high risk of obesity if they do not engage in regular physical activity. Exercising for two hours or more a week appears to block the genetic tendency, highlighting the importance of lifestyle in preventing obesity-related diseases.
Researchers compare a large imprinted region in the human genome with its counterpart in the mouse genome, identifying crucial genetic elements that control gene activity. The study provides the first global view of an entire imprinted region in any genome, shedding light on mechanisms of genomic imprinting.
Involuting mammary glands undergo two stages of apoptosis, with the first wave triggered by Fas binding to its ligand FasL. Mutant animals lacking Fas or FasL experience delayed epithelial cell death.
Researchers used MRI to show that statin drugs remove fat from atherosclerotic lesions, reducing the risk of heart attacks and strokes. Statins may detect patients at risk for cardiovascular disease, identify treatment options, and monitor treatment effectiveness.
Scientists at University of Maryland Biotechnology Institute discover ubiquilin controls levels of proteins central to early development of Alzheimer's disease. The molecule increases presenilin levels in cells, a key step in understanding the disease.
Researchers have identified a link between obesity, digestive system malfunctions, and excessive alcohol production in the liver. Feeding obese mice antibiotics significantly reduced alcohol production, suggesting a potential treatment strategy using oral antibiotics or yogurt to constrain intestinal bacterial overgrowth.
Researchers at OHSU are conducting a four-year study to determine whether ginkgo biloba can delay or prevent the early stages of Alzheimer's disease in people 85 years and older. The study aims to recruit 200 subjects who do not display signs of mental impairment and will use written, verbal, and MRI tests to assess cognitive function.
Researchers found that fen-phen use can cause abnormal thickening of heart valve leaflets, possibly due to increased production of TBF-beta-1. Serotonin and tryptophan may play a role in this process.
The University of Michigan has thoroughly investigated the book 'Darkness in El Dorado' by Patrick Tierney and found that major claims are false. The university confirms that Dr. Neel's medical care was humane and medically appropriate, and the measles outbreak occurred before his arrival.
A new Mayo Clinic study suggests that coffee drinkers may have less than half the risk of developing Parkinson's disease compared to non-coffee drinkers. The study found that individuals who consumed four or more cups of coffee per day had an average age of onset eight years older for the disease.
USGS researchers link Mercury levels in Lake Tulane to global climate changes, while also analyzing African dust's role in affecting coral health. Additionally, scientists explore the Chesapeake Bay bolide's crater formation and its structural implications.
OHSU researchers successfully used bone marrow stem cells to repair liver damage in mice with genetic disease Tyrosinemia. The study shows that hematopoietic stem cells are required for liver cell regeneration, offering hope for new therapies using stem cells.
A study found that a combination of statin and niacin can reduce the risk of hospitalization for chest pain or heart attacks by 70% among patients at high risk. The treatment also showed promise in reversing arterial buildup in these patients, with angiograms revealing decreased plaque buildup in most participants.
Researchers at Georgia Tech, HP Labs, and UCLA receive the Feynman Prize in Nanotechnology for their work on building devices with atomic precision. The team, led by Uzi Landman and R. Stanley Williams, successfully created a molecular switch, a key step towards building entire memory chips at the nanoscale.
Renowned botanist Peter H. Raven is among the 12 scientists to receive the prestigious National Medal of Science. He has made significant contributions to plant systematics and evolution, introducing the concept of coevolution and preserving biodiversity worldwide.
Researchers suggest that mountain-front reservoirs store water, smoothing out seasonal fluctuations and leaving only long-term cycles. This process is influenced by the fluctuating position of the water table relative to stream levels.
A study found that 28% of fitness clubs in Ohio failed to conduct pre-entry screenings for cardiovascular problems, while 17% reported heart attacks or sudden deaths. Gyms must implement recommended screening practices and emergency response plans to ensure member safety.
Researchers identify gC1qR as a binding partner for Hepatitis C core protein, allowing the virus to evade immune response and persist in the body. The interaction between gC1qR and core protein may provide new targets for developing therapies to combat chronic hepatitis C.
A University of North Carolina at Chapel Hill study found that 7% of healthy North Carolina schoolchildren already have three risk factors for heart disease and type II diabetes. Obesity is the sole significant predictor of these risk factors, with obese children 53 times more likely to develop insulin resistance syndrome.
A Duke University Medical Center study found that ACE inhibitors are prescribed in just over half the cases they should be, despite clear evidence of their benefits. The study's author suggests increasing physician education and implementing an oversight system to ensure patients receive the best treatments.
A study found that antidiabetic drugs are less effective in mice without adipose tissue, suggesting a possible connection between fatty liver disease and diabetes. The authors also noted that the drugs still had some beneficial effects on lipid metabolism in these animals.
Researchers at UCLA Medical Center found that implementing a dual list for organs increases the supply of usable donor hearts for older adults. The program allows patients over 65 to receive transplants from donor hearts with minor repair needs, previously deemed unsuitable for younger patients. This approach improves patient survival ...