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Light may play a much more important role in bacterial life than has previously thought

The bacteria that cause brucellosis can sense light and use the information to regulate their virulence, according to a study in the August 24 issue of the journal Science.

24 Aug 2007

Nuclear nanocapsules to target tiny tumors

Rice University chemists have found a way to package some of nature's most powerful radioactive particles inside DNA-sized tubes of pure carbon -- a method they hope to use to target tiny tumors and even lone leukemia cells.

24 Aug 2007

UVA protection in sunscreens to be shown

The U.S. Food and Drug Administration today proposed a new regulation that sets standards for formulating, testing and labeling over-the-counter (OTC) sunscreen drug products with ultraviolet A (UVA) and ultraviolet B (UVB) protection.

24 Aug 2007

Effects of obesity on egg and infertility discovered

A researcher at the University of Adelaide, Australia, has discovered scientific evidence that obesity is a key factor in infertility – because of how it affects women's eggs.

24 Aug 2007

Fat mice gain protection against diabetes

The world's fattest mice can overeat without developing insulin resistance or diabetes thanks to a glut of a key hormone, a dichotomy that helps explain why not all obese people are diabetic, a UT Southwestern Medical Center researcher has found.

24 Aug 2007

Scientist uses novel mass spectrometer to weigh virus particle

With unprecedented sensitivity, Carnegie Mellon University's Mark Bier has characterized large viral particles and bulky von Willebrand factors using a novel mass spectrometer.

24 Aug 2007

In the junk lies treasure when it comes to DNA

Three micro RNA genes appear to be key partners of protective gene p53; their loss is linked to common type of lung cancer

24 Aug 2007

New hope for people with bipolar disorder

Melbourne mental health researchers have succeeded in halving the number of relapses experienced by people with bipolar disorder which strikes two in 100 Australians, accounts for 12 per cent of suicides each year and costs the country at least $1.5 billion annually.

24 Aug 2007

New technology for keeping liver cells alive inside bioartificial liver-assist devices

Such devices enable people who are suffering from acute liver failure to survive while their own liver cells regenerate, or until they receive a liver transplant. The person's blood or plasma circulates through the device. Inside, living cells -- usually pig or human liver cells -- perform normal liver functions.

24 Aug 2007

Roche and WHO reinforce Tamiflu as primary H5N1 treatment

The World Health Organization (WHO) has reinforced that Tamiflu (oseltamivir) is the primary recommended antiviral of choice in managing patients infected with H5N1 in updated guidance published on the WHO website today.

24 Aug 2007

Sex among seniors

The first comprehensive, nationally representative survey on the prevalence of sexual activity among older Americans provides a portrait of the intimate lives of people ages 57 to 85.

24 Aug 2007

Environmental tests help predict hospital-acquired Legionnaires' disease risk

A new study spearheaded by the University of Pittsburgh School of Medicine has determined that environmental monitoring of institutional water systems can help to predict the risk of hospital-acquired Legionella pneumonia, better known as Legionnaires disease.

24 Aug 2007

Global cosmetics and skin-care-product industry skipping out on science!

The multi-billion-dollar global cosmetics and skin-care-product industry sometimes is beset by a me-too mindset in which research and development focuses on matching the competition rather than applying sound science to improve products, a scientist told the 234th national meeting of the American Chemical Society.

24 Aug 2007

New clue to mechanisms of gene signaling and regulation

Scientists have discovered a pattern in the DNA sequence of the mouse genome that may play a fundamental part in the way DNA molecules regulate gene expression.

24 Aug 2007

Discovery on manipulating skin tone and color

In the timeless quest for healthier, younger looking skin, scientists from the University of Cincinnati and Tokyo Medical University have made an important discovery toward manipulating skin tone and color.

24 Aug 2007

Restless legs syndrome common and troublesome in children and adolescents

Restless legs syndrome is a common problem in children 8 years of age and older in the United States and the United Kingdom, according to a new report from an international team of researchers.

24 Aug 2007

New options in treating pigmentation disorders

Melanocytes are not the only cells responsible for differences in skin coloration. New research from the University of Cincinnati (UC) has shown that some of the most basic cells on the skin's surface influence pigment production and help regulate skin coloration.

24 Aug 2007