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Nanoparticles advance photodynamic therapy to kill tumor cells

Photodynamic therapy (PDT) is a powerful approach for destroying tumors, one that uses light and a light-sensitive chemical to rapidly kill cells.

20 Feb 2007

Scientists label cells with magnetic nanoparticles

Investigators at the German Cancer Research Center have developed silica-coated iron oxide nanoparticles that allow for cell tracking in a live animal using magnetic resonance imaging (MRI).

20 Feb 2007

Battle looming between NHS and pharma giants

According to the Office of Fair Trading (OFT) in Britain, the National Health Service (NHS) is paying far too much to drug companies for branded medicines.

20 Feb 2007

An aspirin a day keeps heart disease away

According to new guidelines released by the American Heart Association, almost all women are at risk of heart disease and doctors should consider prescribing a daily aspirin for them.

20 Feb 2007

Smoking produces biochemical changes in human brain

New research shows for the first time that smoking produces long-lasting biochemical changes in the human brain similar to those changes previously seen in the brains of animals that used cocaine, heroin, and other illicit drugs.

20 Feb 2007

Psychologists call for replacing sexualized images of girls in media and advertising with positive ones

A report of the American Psychological Association (APA) released found evidence that the proliferation of sexualized images of girls and young women in advertising, merchandising, and media is harmful to girls' self-image and healthy development.

20 Feb 2007

Regulator of cholesterol production identified

By first probing the way primitive yeast make cholesterol, a team of scientists has discovered a long-sought protein whose human counterpart controls cholesterol production and potentially drug metabolism.

20 Feb 2007

Women are more likely than men to show elevated diabetes risk factors

The 'diabetes clock' may start ticking in women years in advance of a medical diagnosis of the disease, new research has shown.

20 Feb 2007

Genetic mutations make people susceptible to schizophrenia

Gene mutations governing a key brain enzyme make people susceptible to schizophrenia and may be targeted in future treatments for the psychiatric illness, according to MIT and Japanese researchers.

20 Feb 2007

Avastin slows growth of gliomas

Avastin, a relatively new type of drug that shrinks cancerous tumors by cutting off their blood supply, can slow the growth of the most common and deadly form of brain cancer, a pilot study conducted at Duke University Medical Center has found.

20 Feb 2007

Hirsute women may benefit from spearmint tea

Women with hirsutism grow hair on their faces, breasts and stomachs. This can cause great distress.

20 Feb 2007

Cell pathway identified which plays critical role in colon cancer

For the one in 18 men and women who will be diagnosed with cancer of the colon and rectum during their lifetime and over 150,000 people diagnosed on a yearly basis, today's genetic research news offers some optimism.

20 Feb 2007

Orthopedic surgeons debate whether knee implant designed for women is better than standard implant

Many orthopedic surgeons are debating whether Warsaw, Ind.-based Zimmer Holdings' knee implant Gender Solutions, which is designed specifically for women, is better for women than the standard artificial knee, Reuters reports.

19 Feb 2007

California Appellate Court panel hears arguments in challenge of State proposition promoting embryonic stem cell research

A three-judge panel of the California Court of Appeal in San Francisco on Wednesday heard oral arguments in two consolidated cases challenging the constitutionality of California's Proposition 71 -- approved by voters in 2004 to provide $3 billion for human embryonic stem cell research -- the Los Angeles Times reports.

19 Feb 2007

Rwanda plans legislation that would limit couples to no more than three children

Rwandan lawmakers are drafting legislation that would limit couples to no more than three children to control the country's population growth and prevent poverty levels from increasing, Francois Sekamondo of Rwanda's Ministry of Finance and Economic Planning said on Wednesday, Reuters South Africa reports.

19 Feb 2007

Teens spending more time in front of the computer and less time being physically active

As they grow older, teenagers are spending more time in front of the computer and television and less time participating in physical activities, according to researchers at the University of Minnesota School of Public Health.

19 Feb 2007

Thimerosal to be discussed at Wednesday's CDC meeting

The Advisory Committee on Immunization Practices (ACIP) will meet this week at the CDC in Atlanta. Thimerosal, a controversial mercury-based vaccine preservative, is scheduled to be discussed Wednesday morning at 10:55 am.

19 Feb 2007

Plant-based omega-3 polyunsaturated fatty acids may have a protective effect on bone health

Normally, most of the omega-3 fatty acids in the diet are plant-derived and come mainly from soybean and canola oil. Other sources are flaxseed, flaxseed oil, walnuts and walnut oil.

19 Feb 2007

Four genes identified that increase risk of developing type 2 diabetes

This form of diabetes is the most common worldwide and affects nearly 2 million Canadians. In recent years, the prevalence of Type 2 diabetes has increased rapidly. This genetic discovery may help stem this rise.

19 Feb 2007

Search for vaccine to prevent Chlamydia

It's the most common bacteria-related sexually transmitted disease in the United States, so researchers at The University of Texas at San Antonio's South Texas Center for Emerging Infectious Diseases (STCEID) and The University of Texas at San Antonio Health Science Center have partnered to discover a vaccine that will prevent Chlamydia.

19 Feb 2007