Body

Researchers say they can determine ethnic origin of stem cell lines

An international team of scientists led by researchers at The Scripps Research Institute has developed a straightforward technique to determine the ethnic origin of stem cells.

Chlorophylls block aflatoxin absorption, study finds

CORVALLIS, Ore. – A new study has found that chlorophyll and its derivative chlorophyllin are effective in limiting the absorption of aflatoxin in humans. Aflatoxin is produced by a fungus that is a contaminant of grains including corn, peanuts and soybeans; it is known to cause liver cancer – and can work in concert with other health concerns, such as hepatitis.

Levels of aflatoxin are carefully regulated in the United States, but are often found in the food supplies of developing nations, especially those with poor storage facilities.

JAMA launches new series on caring of the aging patient

To assist physicians in caring for a patient demographic that is rapidly growing in size, JAMA is launching a new series, "Care of the Aging Patient: From Evidence to Action."

Researchers develop rapid flu detection system

Milwaukee, WI – Researchers from the Medical College of Wisconsin, the Children's Research Institute, and the Children's Hospital of Wisconsin have developed a rapid, automated system to differentiate strains of influenza. The related report by Beck et al, "Development of a rapid automated influenza A, influenza B, and RSV A/B multiplex real-time RT-PCR assay and its use during the 2009 H1N1 swine-origin influenza virus (S-OIV) epidemic in Milwaukee, Wisconsin," appears in the January 2010 issue of the Journal of Molecular Diagnostics.

Targeting TRAP-1 may be viable treatment strategy for prostate cancer

Worcester, MA – Current research suggests that TNF-receptor associated protein-1 (TRAP-1) may prevent cancer cell death. The related report by Leav et al, "Cytoprotective Mitochondrial Chaperone TRAP-1 as a Novel Molecular Target in Localized and Metastatic Prostate Cancer," appears in the January 2010 issue of the American Journal of Pathology.

New acoustic sensors aid marine conservation efforts

Over the past decade, researchers have developed a variety of reliable real-time and archival instruments to study sounds made or heard by marine mammals and fish. These new sensors are now being used in research, management and conservation projects around the world with some very important practical results. Among them is improved monitoring of endangered North Atlantic right whales in an effort to reduce ship strikes, a leading cause of their deaths.

Breast cancer patients could boost sex drive, reduce hot flashes with acupuncture

DETROIT – Not only is acupuncture as effective as drug therapy at reducing hot flashes in breast cancer patients, it has the added benefit of potentially increasing a woman's sex drive and improving her sense of well-being, according to a Henry Ford Hospital study.

Study results show that acupuncture, when compared to drug therapy, has a longer-lasting effect on the reduction of hot flashes and night sweats for women receiving hormone therapy for breast cancer treatment. Women also report that acupuncture improves their energy and clarity of thought.

Rice scientists divide and conquer

Half a protein is better than none, and in this case, it's way better than a whole one. A Rice University lab has discovered that dividing a particular fluorescent protein and using it as a tag is handy for analyzing the workings of live cells, particularly in the way they employ iron-sulfur clusters.

Iron and sulfur in just the right amounts are critical to good health. They're in the food people eat and vitamins they take every day, but having too much or too little in the cells can cause serious problems.

HdeA: the molecular shaperone for bacterial proteins

ANN ARBOR, Mich.---Just like teenagers at a prom, proteins are tended by chaperones whose job it is to prevent unwanted interactions among immature clients. And at the molecular level, just as at the high school gym level, it's a job that usually requires a lot of energy.

New RNA interference technique silences up to 5 genes

CAMBRIDGE, Mass. — Researchers at MIT and Alnylam Pharmaceuticals report this week that they have successfully used RNA interference to turn off multiple genes in the livers of mice, an advance that could lead to new treatments for diseases of the liver and other organs.

First molars provide insight into ape, human evolution

TEMPE, Ariz. – The timing of molar emergence and its relation to growth and reproduction in apes is being reported by two scientists at Arizona State University's Institute of Human Origins in the Dec. 28 online early edition of the Proceedings of the National Academy of Sciences (PNAS).

Your political party might be in your genes

Los Angeles, London, New Delhi, Singapore and Washington DC (Dec 28, 2010) Genetics play a pivotal role in shaping how individual's identify with political parties , according to an article in a recent issue of Political Research Quarterly, the official journal of the Western Political Science Association (published by SAGE).

Student sleuths using DNA reveal zoo of 95 species in NYC homes -- and new evidence of food fraud

Two New York City high school students exploring their homes using the latest high-tech DNA analysis techniques were astonished to discover a veritable zoo of 95 animal species surrounding them, in everything from fridges to furniture, from sidewalks to shipping boxes, and from feather dusters to floor corners.

Emphysema linked to childhood tobacco smoke exposure

December 28, 2009 -- Children regularly exposed to tobacco smoke at home were more likely to develop early emphysema in adulthood. This finding by researchers at Columbia University's Mailman School of Public Health suggests that the lungs may not recover completely from the effects of early-life exposures to tobacco smoke (ETS). The study is published in the December 2009 American Journal of Epidemiology.

BBSome complex protects cilia from excess signaling molecules

A protein complex mutated in human disease removes excess signaling molecules to prevent them from damaging cilia, say researchers from UMass Medical School. The study will be published in the December 28 issue of the Journal of Cell Biology .