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Melatonin useless when it comes to sorting out sleep disorders

According to Canadian scientists there is no evidence to support the belief that melatonin has any effect in the treatment of sleep disorders.

12 Feb 2006

Gut protein protects against infection and intestinal breakdown

A protein that binds to bile in the small intestine may hold the key to preventing infection and intestinal breakdown in people with conditions such as obstructive jaundice or irritable bowel syndrome, researchers at UT Southwestern Medical Center have discovered.

12 Feb 2006

Use of antidepressants during pregnancy linked to neonatal abstinence syndrome in infants

Almost one-third of 60 newborn infants whose mothers took antidepressants during pregnancy experienced neonatal abstinence syndrome, a type of withdrawal with symptoms that include high-pitched crying, tremors and disturbed sleep, according to a study in the February issue of Archives of Pediatrics & Adolescent Medicine.

9 Feb 2006

Physician counseling and computer assessment may improve teen health behaviors

A program that combines advice from a primary care physician with computer assessment, mailings and phone calls may help teens improve some aspects of their diets and physical activity levels, according to a study in the February issue of Archives of Pediatrics & Adolescent Medicine.

9 Feb 2006

Depression linked to Alzheimer's

A lifetime history of depression is associated with increased plaques and tangles in the brains of those with Alzheimer's disease and more rapid cognitive decline, according to a study by researchers at the Alzheimer's Disease Research Center at Mount Sinai School of Medicine.

9 Feb 2006

Bipolar disorder in children

Children with bipolar disorder experience more enduring and rapidly changing symptoms of the disease than adults, according to a study that, for the first time, maps the clinical progression of each of the three sub-types of bipolar disorder in children and adolescents.

9 Feb 2006

First solid data on health effects of a low-fat diet

Adopting a low-fat diet in later life and following such a regimen for nearly a decade does not appear to have a significant impact on reducing the overall risk of breast cancer, colorectal cancer or heart disease, according to a Women's Health Initiative study that involved nearly 50,000 postmenopausal women across the United States.

9 Feb 2006

Low birth weight infants overcome difficulties by adulthood

As young adults, the majority of extremely low birth-weight infants are attaining similar levels of education, employment and independence as normal birth-weight infants, according to a study by researchers at the Michael G. DeGroote School of Medicine at McMaster University in the February 8 issue of the Journal of the American Medical Association (JAMA).

9 Feb 2006

Older women who simply reduce the amount of total fat in their diet won't generally lower cancer risk

Older women who simply reduce the amount of total fat in their diet won't generally lower their risk of breast or colorectal cancer or heart disease, according to the latest findings from the federally funded Women's Health Initiative.

9 Feb 2006

New DNA-based cell adhesion strategy

A new technique in which single strands of synthetic DNA are used to firmly fasten biological cells to non-biological surfaces has been developed by researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley.

9 Feb 2006

Researchers define a new "first step" that initiates sepsis

A Mayo Clinic research team has challenged the accepted theory on the cause of sepsis -- a condition in which the body's cells generate fever, shock and often death. Sepsis is thought to occur when poisons from bacterial infection interfere with the cells.

9 Feb 2006

Case biologists move closer to biologically inspired robots

The brain as command center for bodily movement was too simple an idea, thought the Russian physiologist Nicolas Bernstein some 60 years ago.

9 Feb 2006

Viruses can be forced to evolve in ways to benefit humans

Viruses and humans have evolved together over millions of years in a game of one-upmanship that, often as not, left humans sick or worse.

7 Feb 2006

Discovery of the molecular mechanism that inhibits HCV replication in vitro

Since its discovery several decades ago, the insidious human pathogen has stymied the quest for anti-viral therapies by refusing to reproduce in test tubes for more than a few hours or days, denying scientists an efficient virus production and infection system for experimental research.

7 Feb 2006