Brightsurf Science News & Current Events

December 28, 2006
Sex ends as seasons shift and kisspeptin levels plummet
A hormone implicated in the onset of human puberty also appears to control reproductive activity in seasonally breeding rodents, report Indiana University Bloomington and University of California at Berkeley scientists in the March 2007 issue of Endocrinology.

Researchers identify new drug targets for cancer
Solving a 100-year-old genetic puzzle, researchers at the UCSD School of Medicine have determined that the same genetic mechanism that drives tumor growth can also act as a tumor suppressor.

Sex differences and rheumatoid arthritis
A humanized mouse model may be valuable for not only studying sex differences in RA, but also for understanding why women are particularly vulnerable to autoimmunity and for developing future therapeutic strategies.

Ground spider diversity studied in research project
None of Takesha Henderson's discoveries are named Charlotte, but they are weaving a new chapter in Texas entomology.

Study shows risk of acute pancreatitis low with statins
New research reveals that while cholesterol-lowering drugs do increase the risk of painful inflammation of the pancreas, the side effect is relatively rare, according to Sonal Singh, M.D., from Wake Forest University School of Medicine, and colleagues.

A transplant in time
In hemophilia, a mutated gene prevents the production of a blood-clotting protein.

New treatment hope for systemic sclerosis
Experiments indicate the promise of imatinib mesylate to prevent tissue fibrosis and bring meaningful advances to the treatment of SSc.

Mayo Clinic collaboration mining of ancient herbal text leads to potential new anti-bacterial drug
A unique Mayo Clinic collaboration has revived the healing wisdom of Pacific Island cultures by testing a therapeutic plant extract described in a 17th century Dutch herbal text for its anti-bacterial properties.

Medical teams are key to patient safety
Medical teams -- not individuals -- are critical to the prevention of catheter-related bloodstream infections, as well as for the overall health, safety, and welfare of patients, according to an editorial by two Virginia Commonwealth University physicians published in today's issue of the New England Journal of Medicine.

How many genes does it take to learn? Lessons from sea slugs
At any given time within just a single brain cell of sea slug known as Aplysia, more than 10,000 genes are active, according to scientists writing in Cell.

A new jump start for aging blood vessels
Recent studies show promise for significantly reducing vascular aging by inactivating TNFá, which has been linked to blood vessel dysfunction and cell death.

Dust to gust
More than half of the dust needed for fertilizing the Brazilian rainforest is supplied by a valley in northern Chad, according to an international research team headed by Dr.

For kids with high blood pressure, surgery can help when medicines fail
High blood pressure may seem like something that only adults get, but children can develop it too -- and it can pose serious risks to their hearts, brains and lives.

Roadworks on the motorways of the cell
Microtubules constantly grow and shrink, but during cellular transport they need to be kept stable.

New treatments prevent brain injury hours after stroke in rats
Two novel treatments -- a basic compound found in every cell in the body and an extract of green tea -- may prevent brain damage caused from stroke, according to two studies in rats led by a researcher at the San Francisco VA Medical Center.

Technique quickly identifies bacteria for food safety, health care and homeland security
Researchers at Purdue University have used a new technique to rapidly detect and precisely identify bacteria, including dangerous E. coli, without time-consuming treatments usually required.

Safety experts ill-equipped to handle nanotechnology in workplace
In a new article,

Understanding the Arctic -- NSF-funded expeditions cover new ground in climate science
The effects of climate change appear in the Arctic before becoming apparent in other regions, but scientists know little about the Arctic sea floor.
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