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Rise in oxygen content corresponds exactly to a really rapid rise of large, placental mammals

The first, high resolution continuous record of oxygen concentration in the earth's atmosphere shows that a sharp rise in oxygen about 50 million years ago gave mammals the evolutionary boost they needed to dominate the planet, according to Paul Falkowski, Rutgers professor of marine science and lead author of a paper published Sept. 30 in the journal Science.

3 Oct 2005

Survey highlights the need to increase folic acid fortification of the grain supply

Only one-third of childbearing age women are taking a multivitamin containing the B vitamin folic acid daily to prevent serious birth defects of the brain and spine in their future babies, according to a decade of March of Dimes surveys.

3 Oct 2005

Discovery establishes a role for the gene Rsf-1 in ovarian cancer

Johns Hopkins Kimmel Cancer Center researchers have linked alterations in a gene, called Rsf-1, to the most deadly ovarian cancers. The scientists say the discovery is the first to establish a role for the gene in ovarian cancer and may lead to a test that can predict, early on, which patients will develop aggressive disease.

3 Oct 2005

Misoprostol could play an important part in reducing complications of delivery in developing countries

A relatively cheap and easy to use drug could save the lives of thousands of women in the developing world, according to a study in this week's British Medical Journal.

3 Oct 2005

New genes tied to lifespan extension

Drastically reducing calorie intake, or caloric restriction, is known to extend the lifespan of species including yeast, worms and rodents. Previous research linked a gene called Sir2 with lifespan extension due to caloric restriction, but worms and yeast that lack Sir2 also live longer when put on a tough diet, showing that some other genes must be at work.

3 Oct 2005

Organosilicon compounds help improve lithium battery technology

With the help of new silicon-based compounds, scientists -- and patients -- are getting a significant new charge out of the tiny lithium batteries used in implantable devices to help treat nervous system and other disorders.

3 Oct 2005

First identification of the genetic basis of disease in a patient with a complex I assembly defect

Mitochondrial complex I deficiency is one of the most common defects in patients with mitochondrial disease. The deficiency results from a failure to assemble the enzyme properly, but the nature of the molecular chaperones that are necessary for this process in mammals have remained obscure.

3 Oct 2005

Microarray technology may help tailor breast cancer therapy

Microarray technology could be used to tailor therapy according to the individual, and prevent breast cancer patients from having to undergo painful unsuccessful therapies.

3 Oct 2005

Research may help create drugs to target the molecule-binding pathway, beneficial for treating arthritis and reducing inflammation

The first close-up look at a pro-inflammatory signaling molecule involved in immune response in mammals suggests that researchers "should rethink what they are doing" in creating drugs based on a fruit-fly model, scientists say.

3 Oct 2005

Speeding up fetal MRIs

A modified technique that uses the eyes as the line of reference means a 50 percent reduction in the time necessary to take MRI images of the fetal brain.

3 Oct 2005

Concerta, a once-daily form of the drug methylphenidate, successfully controlled ADHD symptoms

A new study has found that an all-day, extended-release stimulant for treating attention-deficit hyperactivity disorder (ADHD) remains effective for up to two years without significant side effects.

3 Oct 2005

Children enrolled in fitness-oriented gym classes showed greater loss of body fat

Overweight children who took part in lifestyle-focused, fitness-oriented gym classes showed significant improvement in body composition, fitness, and insulin levels, according to a study in the October issue of Archives of Pediatrics and Adolescent Medicine.

3 Oct 2005

Giving infants preventive treatment for malaria can reduce malaria and anaemia even in seasonal, high transmission areas

The study followed over 2,400 infants in Ghana who were given a preventive treatment for malaria or a placebo (dummy pill) when they received routine vaccinations and at 12 months of age.

3 Oct 2005

Development of aggressive forms of prostate cancer may be influenced by environmental effects that occur early in life

How heavy a man is at the time he is diagnosed with prostate cancer, as well as his history of weight gain, appear to play significant roles in how aggressive his cancer may become, say researchers at the University of Texas M. D. Anderson Cancer Center.

3 Oct 2005

Clinical trials of daily oral antiretroviral dosing as pre-exposure prophylaxis

Writing in the journal Science, an international team of researchers, clinicians and others explains that a promising, relatively new approach is for people not infected but at high risk to take drugs that might prevent them from contracting HIV. But debate over the particulars of the strategy has slowed progress.

3 Oct 2005

Artemisinin combination therapies have potential to be one of the major public health interventions for Africa in this decade

Despite changes in policy in many African countries, most cases of malaria are still treated with old drugs that often fail, say researchers the British Medical Journal.

3 Oct 2005

MRI may better enable physicians to plan care for infants with heart defects

Magnetic resonance imaging (MRI) techniques can provide real-time measurements of volume in a fetal heart, and may better enable physicians to plan care for infants with heart defects, according to a new study.

3 Oct 2005

Attitudes of a peer group are more influential than a group that is not as closely allied

According to a study at Yale, one of the most effective ways to change negative attitudes about obese people is by addressing perceptions of normative beliefs within particular social groups.

3 Oct 2005

Physical activity may reduce gastrointestinal symptoms in people who are obese

In a study published in the American Gastroenterological Association (AGA) journal Clinical Gastroenterology and Hepatology, researchers found that a high body mass index (BMI) and lack of physical activity were associated with an increase in GI symptoms such as stomach pain, diarrhea, constipation and irritable bowel syndrome (IBS).

3 Oct 2005

What works in preventing and reducing juvenile delinquency?

A new report released by the University of Wisconsin-Madison and the UW-Extension synthesizes the latest research on what works in preventing and reducing juvenile delinquency.

28 Sep 2005

Medical News

Rise in oxygen content corresponds exactly to a really rapid rise of large, placental mammals

Survey highlights the need to increase folic acid fortification of the grain supply

Discovery establishes a role for the gene Rsf-1 in ovarian cancer

Misoprostol could play an important part in reducing complications of delivery in developing countries

New genes tied to lifespan extension

Organosilicon compounds help improve lithium battery technology

First identification of the genetic basis of disease in a patient with a complex I assembly defect

Microarray technology may help tailor breast cancer therapy

Research may help create drugs to target the molecule-binding pathway, beneficial for treating arthritis and reducing inflammation

Speeding up fetal MRIs

Concerta, a once-daily form of the drug methylphenidate, successfully controlled ADHD symptoms

Children enrolled in fitness-oriented gym classes showed greater loss of body fat

Giving infants preventive treatment for malaria can reduce malaria and anaemia even in seasonal, high transmission areas

Development of aggressive forms of prostate cancer may be influenced by environmental effects that occur early in life

Clinical trials of daily oral antiretroviral dosing as pre-exposure prophylaxis

Artemisinin combination therapies have potential to be one of the major public health interventions for Africa in this decade

MRI may better enable physicians to plan care for infants with heart defects

Attitudes of a peer group are more influential than a group that is not as closely allied

Physical activity may reduce gastrointestinal symptoms in people who are obese

What works in preventing and reducing juvenile delinquency?

How microRNA is transforming science: From discovery to diagnostics

Advancing benzodiazepine detection

The Surgeon-Scientist Pioneering Regenerative Engineering

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