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Worm defecation holds clues to widespread cell-to-cell communication process

The focus of two recent Nobel prizes, a species of roundworm has made possible another advance in the understanding of how cells talk to one another, according to a study published online Feb. 21 in the journal Current Biology.

22 Feb 2008

Daytime dozing linked to increased stroke risk in elderly

Regular daytime dozing forewarns of a significantly increased risk of stroke in older Americans, researchers reported at the American Stroke Association's International Stroke Conference 2008.

21 Feb 2008

New procedures and techniques speed Achilles tendon recovery

Many Achilles tendon surgery patients are getting back on their feet faster, thanks to new procedures and techniques.

21 Feb 2008

Optical tool detects biomarkers in breath

Exhale on a cold winter day and you will see the water vapor coming out of your mouth.

20 Feb 2008

Mix of endocrine disrupters a dangerous cocktail

Endocrine-disrupting chemicals, which are harmless individually in small doses, can together be a dangerous cocktail.

20 Feb 2008

Stereotypes and misinformation about HIV still commonplace in healthcare

The doctor who wouldn't come into the patient's hospital room. The neurologist who avoided eye contact. The ambulance attendant who angrily threw her bloodied gloves into the street after learning the injured patient was HIV-positive.

20 Feb 2008

Biannual mass antibiotic treatment may help reduce contagious eye disease trachoma in Africa

Changing the administration of the antibiotic azithromycin from once to twice a year in villages in Ethiopia substantially reduced eye infections in preschool children caused by chlamydia, which causes the serious, contagious eye disease trachoma, according to a study in the February 20 issue of JAMA.

20 Feb 2008

Personalized medicine can cut breast cancer risk

The time has come for breast cancer risk assessment, counseling and genetic testing to move from cancer specialists to the realm of primary care, according to a presentation at the AAAS annual meeting, held this year in Boston.

17 Feb 2008

Metabolic syndrome linked to climate

Researchers from the University of Chicago have discovered that many of the genetic variations that have enabled human populations to tolerate colder climates may also affect their susceptibility to metabolic syndrome, a cluster of related abnormalities such as obesity, elevated cholesterol levels, heart disease, and diabetes.

17 Feb 2008

Predicting astronauts from radiation

European scientists have developed the most accurate method yet for predicting the doses of radiation that astronauts will receive aboard the orbiting European laboratory module, Columbus, attached to the ISS this week.

14 Feb 2008

New understanding of hearing loss process

A healthy ear emits soft sounds in response to the sounds that travel in.

13 Feb 2008

Fatal shark attacks drop to lowest levels worldwide

Fatal shark attacks worldwide dipped to their lowest levels in two decades in 2007 with the sole casualty involving a swimmer vacationing in the South Pacific, according to the latest statistics from the University of Florida.

13 Feb 2008

Prenatal exposure to maternal antibodies linked to autistic behaviors in offspring

New research from the UC Davis M.I.N.D. Institute shows that an interaction between fetal brain cells and maternal antibodies could be linked with the repetitive behavior - also called stereotypies - that is characteristic of autism.

12 Feb 2008

Learning disabilities associated with language problems later in life

Individuals with a neurodegenerative condition affecting language appear more likely to have had a history of learning disabilities than those with other types of dementia or with no cognitive problems, according to a report in the February issue of Archives of Neurology.

12 Feb 2008

Public smoking ban decreases acute coronary events in Italy

The number of acute coronary events such as heart attack in adults dropped significantly after a smoking ban in public places in Italy, researchers reported in Circulation: Journal of the American Heart Association.

12 Feb 2008

Natural secretion marks difference between mole and melanoma

A protein naturally produced and secreted by the body can make the difference between your average mole and melanoma, which killed more than 8,000 people in the United States last year, reveals a new study in the February 8 issue of the journal Cell, a publication of Cell Press.

8 Feb 2008