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Menopause symptoms return with a vengence when women stop HRT

In somewhat depressing news for women battling that often miserable phase in their lives, the menopause, it appears that more than half of women who start taking hormone replacement therapy to relieve the discomfort, can expect to see a dramatic resurgence of those symptoms, when they discontinue the therapy.

12 Jul 2005

Serotonin may play a role in maintaining circadian rhythm

Researchers at the University of Pennsylvania School of Medicine have determined how serotonin decreases the body's sensitivity to light and that exposure to constant darkness leads to a decrease in serotonin levels in the brain of fruit flies.

12 Jul 2005

Curcumin has potent anticancer powers

Curcumin, a spice commonly used in curries and other south Asian cooking, blocks a key biological pathway needed for development of melanoma and other cancers, say researchers from the University of Texas M. D. Anderson Cancer Center.

12 Jul 2005

Researchers have pinpointed specific gene and protein over-production in metastatic melanoma

Gene amplification is a process that often happens in cancer cells when the normal DNA replication process is altered, causing many copies of the gene to be produced instead of a single copy of a region of a chromosome.

12 Jul 2005

Study focuses on peripheral arterial disease - availability of vascular surgeons impacts amputation rate

Patients with peripheral arterial disease (PAD) are more likely to have a foot or leg amputated if they live in a region that has few vascular surgeons, according to a Rice University/Baylor College of Medicine study published in the July issue of the Journal of Vascular Surgery.

12 Jul 2005

Sunscreen plays a much more important role than just protecting against sunburn

The number of nevi, or moles, a person has is known to be a strong predictor of the future risk of developing skin cancer, particularly melanoma, the most deadly form of the disease. This number also is believed to be affected by the amount of sun exposure an individual receives.

12 Jul 2005

Obese men may not process carbohydrates as efficiently as obese women

Obese men may not process carbohydrates as efficiently as obese women, a condition that can, ultimately, lead to a decrease in fitness level and the development of metabolic disorders.

12 Jul 2005

Many local health directors unsure of authority to curtail smoking

Local health department directors across North Carolina are confused about state laws covering whether their facilities can be made smoke-free, but still strongly support such policies, according to a new University of North Carolina at Chapel Hill study.

11 Jul 2005

Costs of coronary artery bypass graft surgery more than 80 percent higher in US than in Canada

Although there are no differences in clinical outcome, the in-hospital cost of coronary artery bypass graft surgery (CABG) in the U.S. is 82.5 percent higher in the U.S. than in Canada, according to a study in the July 11 issue of Archives of Internal Medicine.

11 Jul 2005

Congenital central hypoventilation syndrome (CCHS) offers clues to SIDS, sleep apnea

Imagine raising a child who stops breathing when falling asleep - and has to be reminded to visit the bathroom after drinking a Big Gulp. That's the dilemma faced by parents of children born with congenital central hypoventilation syndrome (CCHS).

11 Jul 2005

Giving oxygen may do more harm than good

Doctors and paramedics who give their patients oxygen - the most commonly administered "drug" in the world - may be doing more harm than good, a Queen's University researcher contends.

11 Jul 2005

Overactive dopamine receptors may help explain anorexia nervosa symptoms

Just why those with anorexia nervosa are driven to be excessively thin and seem unaware of the seriousness of their condition could be due to over-activity of a chemical system found in a region deep inside the brain, a University of Pittsburgh study suggests.

11 Jul 2005

Discovery of protein deficit that causes drug toxicity

Mayo Clinic researchers have discovered an inherited structural mechanism that can make drugs for some diseases toxic for some patients.

11 Jul 2005

Study compares four standard measures for heart failure treatment

UCLA investigators found large gaps and marked variation in U.S. hospitals' heart failure treatment based on adherence to four standard quality measures. The study points to the need for hospitals to establish education programs and systems to improve quality of care for this patient population.

11 Jul 2005

Obese men may not process carbohydrates as efficiently as obese women

A new study published in the July issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians (ACCP), showed that severely obese men were more carbohydrate intolerant and had less physical endurance than severely obese women, leading researchers to believe that gender plays a strong role in physical fitness and a person's ability to metabolize carbohydrates.

11 Jul 2005

Lack of a blood clotting protein may protect against clogged arteries

Reporting in the July 18 issue of The Journal of Experimental Medicine, a group of scientists in Wurzburg, Germany show that the lack of a blood clotting protein may protect against clogged arteries with no risk of excessive bleeding.

11 Jul 2005

Molecules that give certain bugs their color also help them resist attack by immune cells called neutrophils

A new study in the July 18 issue of The Journal of Experimental Medicine shows that gold-colored bacteria are more harmful than their unpigmented relatives.

11 Jul 2005

Anti-tobacco advertising reduces smoking

According to a recently released study, young people were found to reduce their cigarette smoking and had a more positive attitude to anti-smoking after they were exposed to state-sponsored anti-tobacco advertising.

11 Jul 2005

Prescription drug abuse in the USA exceeds 15 million

A recently released report by the National Center on Addiction and Substance Abuse at Columbia University suggests between 1992 and 2003, more Americans were abusing controlled prescription drugs than cocaine, hallucinogens, inhalants and heroin put together.

11 Jul 2005