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Exploring the roles of noise in the eukaryotic cell cycle

A single cell - whether a yeast cell or one of your cells - is exquisitely sensitive to its surroundings.

24 Feb 2009

Mental fatigue impairs physical performance in humans

When participants performed a mentally fatiguing task prior to a difficult exercise test, they reached exhaustion more quickly than when they did the same exercise when mentally rested, a new study finds.

24 Feb 2009

Guidelines for treating patients with cardiovascular disease often based on weaker evidence

An examination of clinical practice guidelines for treating cardiovascular disease finds that current recommendations are largely based on lower levels of evidence or expert opinion, according to a study in the February 25 issue of JAMA, the Journal of the American Medical Association.

24 Feb 2009

Determining risk for pancreatic cancer

In the latest clinical trial for a technique to detect pancreatic cancer, researchers found they could differentiate cells that are cancerous from those that are benign, pre-cancerous, or even early stage indicators called mucinous cystic lesions.

24 Feb 2009

Inexpensive depression screening tool works in resource poor countries

A study published in the February 2009 issue of the Journal of General Internal Medicine reports that a highly reliable depression screening tool known as the Patient Health Questionnaire-9 (PHQ-9) used across the United States and Europe can be effectively administered in resource poor Africa to HIV/AID patients, a population whose mental health needs have been underserved.

24 Feb 2009

Sexual lyrics in pop music linked to early sexual experiences

With sexual activity among adolescents in the United States resulting in over 750,000 teenage pregnancies each year and reports of up to 25 percent of all female adolescents in the US having sexually transmitted infections, researchers and public health officials are looking for those factors that might increase sexual activity in teens.

24 Feb 2009

Researchers block immune cell rush behind deadly sepsis

Researchers have found a way to block the ability of white blood cells to sprint toward the sites of infection when such speed worsens the damage done by sepsis, the often fatal, whole-body bacterial infection, according to a study published today in the journal Blood.

24 Feb 2009

Updated formula measures kidney function more accurately

Measuring kidney function in children can be expensive, time-consuming for clinicians, and tedious for children, who may be exposed to radioactivity and subjected to a large number of blood draws.

24 Feb 2009

Vitamin D may help fight common colds

Vitamin D may be an important way to arm the immune system against disorders like the common cold, report investigators from the University of Colorado Denver (UC Denver) School of Medicine, Massachusetts General Hospital (MGH) and Children's Hospital Boston.

23 Feb 2009

Breakthrough in human papillomavirus research

UAB (University of Alabama at Birmingham) researchers have developed a new, inexpensive and efficient method for producing and studying a type of human papillomavirus (HPV) that causes cervical cancer.

23 Feb 2009

Hormone disorder drug cabergoline could help drinkers stay sober

A drug prescribed for male and female infertility and menstrual disorders could hold the key to a more effective treatment for alcoholism, according to a study by researchers at the UCSF-affiliated Ernest Gallo Clinic and Research Center.

23 Feb 2009

Take 2: What protein and where it is located are important for drug design

Drugs that target a single signaling pathway that drives tumor development and/or progression have been developed successfully to treat a few forms of cancer.

23 Feb 2009

Internet addiction linked to aggression in teenagers

Armed with the findings of a new study, Taiwanese researchers suggest parents and educators pay more attention to children's online habits because Internet-addicted teens seem more prone to aggression.

23 Feb 2009

SYNTAX defines borders between CABG and PCI with TAXUS drug-eluting stents

Coronary artery bypass grafting (CABG) should remain the "standard of care" for patients with complex coronary artery disease, concludes the SYNTAX study, published in the New England Journal of Medicine (online February 18, 2009, Print edition March 5).

23 Feb 2009

Scientists identify lab-made proteins that neutralize a broad range of influenza A viruses

Scientists have identified a small family of lab-made proteins that neutralize a broad range of influenza A viruses, including the H5N1 avian virus, the 1918 pandemic influenza virus and seasonal H1N1 flu viruses.

23 Feb 2009

Patient knowledge of health information influences cancer treatment

A new analysis finds that when colorectal cancer patients seek out health information from the internet and news media, they are more likely to be aware of and receive the latest treatments for their disease.

23 Feb 2009

Why we turn gray

A team of European scientists have finally solved a mystery that has perplexed humans throughout the ages: why we turn gray.

23 Feb 2009

New technique to determine tumor methylation status

Current research suggests that a new technique to determine tumor methylation status can be used in archived tissue samples.

23 Feb 2009

Mechanisms that prevent Alzheimer's Disease: Enzymatic activity plays key role

In a project involving the collaboration of several institutes, research scientists of the Johannes Gutenberg University Mainz have succeeded in gaining further insight in the functioning of endogenous mechanisms that protect against the development of Alzheimer's disease.

23 Feb 2009

Metastasis-promoting protein identified; could provide a prognostic test or target for breast cancer

Tumors that are about to progress and metastasize go through a process also seen in normal embryonic development, known as the epithelial to mesenchymal transition (EMT).

23 Feb 2009