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Long term oestrogen-only hormone replacement therapy increases breast cancer risk

According to new research women who take oestrogen-only hormone replacement therapy for 20 years or longer to treat the symptoms of menopause, put themselves at greater risk of developing breast cancer.

10 May 2006

New treatment for food poisoning

A team of researchers working at the University of Bristol has found a potential new treatment for listeriosis, a deadly form of food poisoning. Their work is reported in Nature Medicine.

10 May 2006

Stem cell 'fusion' occurs in tumors

An Oregon Health & Science University study is adding credence to an increasingly popular theory that fusion is what bonds stem cells with bone marrow cells to regenerate organ tissue.

10 May 2006

Scientists detect cancer genes with new algorithm

Researchers at New York University's Courant Institute of Mathematical Sciences have developed a new algorithm that enhances the ability to detect a cancer gene, and have applied their algorithm to map the set of tumor-suppressor genes involved in lung cancer.

10 May 2006

Impact of optional regulations on heart attack treatment

People who have heart attacks are about 15 percent less likely to be treated with bypass surgery or angioplasty within the first few days of the incident in states with certificate of need (CON) regulatory programs.

10 May 2006

Aggressive cancer treated successfully in mice

White blood cells from a strain of cancer-resistant mice cured advanced cancers in ordinary laboratory mice, researchers at Wake Forest University School of Medicine reported.

9 May 2006

That dreadful feeling - most choose more pain sooner rather than less later

According to research into why people experience the feeling of dread, a team of Emory neuroscientists led by Gregory Berns, MD, PhD, used functional magnetic resonance imaging (fMRI) to determine the areas of the brain that are activated when someone gets that dreadful feeling.

9 May 2006

Doctors widely prescribe drugs without adequate scrutiny

In choosing which drugs to prescribe, doctors often select medications for patients despite a lack of conclusive medical evidence of their effects and safety, according to a new study led by a researcher at the Stanford University School of Medicine.

9 May 2006

Long-term estrogen therapy may be related to a higher risk of breast cancer

Previous studies have linked the use of hormone therapy to breast cancer among postmenopausal women, but have primarily focused on the hormone combination of estrogen plus progestin, according to background information in the article.

9 May 2006

Off-label prescribing common, often not backed by data

A study of office-based physicians in the United States suggests that about one-fifth of medications are prescribed to treat conditions for which they are not approved by the U.S. Food and Drug Administration (FDA), and that nearly three-fourths of those uses lack strong scientific support, according to an article in the May 8 issue of Archives of Internal Medicine.

9 May 2006

Corticosteroids may be linked to an increased risk for atrial fibrillation

High doses of medications known as corticosteroids may be linked to an increased risk for atrial fibrillation, a heart rhythm disorder characterized by an irregular heartbeat, according to an article in the May 8 issue of Archives of Internal Medicine.

9 May 2006

Renewed interest in studying influenza A viruses

The emergence of the avian influenza virus H5N1 that is currently devastating chicken flocks in many countries and threatening to unleash a worldwide epidemic among humans has triggered a renewed interest among scientists in studying influenza A viruses, according to investigators at St. Jude Children's Research Hospital.

9 May 2006

Ethnic differences in risks of adverse reactions to drugs used in cardiovascular medicine

Some ethnic groups may be more susceptible to adverse drug reactions, finds a study published online in the British Medical Journal.

9 May 2006

Cardiovascular disease impact varies according to age, gender, other factors

Cardiovascular disease deaths have declined in the last 25 years, but the effect of America's No. 1 killer varies greatly based on gender, age, location and type, according to a study reported in Circulation: Journal of the American Heart Association.

9 May 2006