Mouse brain cells rapidly recover after Alzheimer's plaques are cleared
Brain cells in a mouse model of Alzheimer'sdisease have surprised scientists with their ability to recuperateafter the disorder's characteristic brain plaques are removed.Researchers at Washington University School of Medicine in St. Louisinjected mice with an antibody for a key component of brain plaques,the amyloid beta (Abeta) peptide. In areas of the brain whereantibodies cleared plaque...Bone Density Recovers After Teens Stop Injected Contraceptive
Lower bone density appears to recover in adolescent females once they stop using the injected contraceptive depot medroxyprogesterone acetate (DMPA), according to a study funded by the National Institute of Child Health and Human Development of the National Institutes of Health. Previous studies had shown that women who use DMPA, marketed under the brand name Depo-Provera, experience a lo...Youth With HIV Take More Risks After New Meds Introduced
Teens with HIV are having more risky sex with more partners than their counterparts did in the years before powerful new medications for HIV were introduced in 1996, according to a new report in the American Journal of Health Behavior. A group of HIV-positive youth studied between 1999 and 2000 reported having more sexual partners, more unprotected sex and more drug use than HIV-positive...After a time-shift, mixed signals from the circadian clock
Circadian rhythms in mammalian behavior, physiology, and biochemistry are controlled by the central clock within a brain structure known as the suprachiasmatic nucleus (SCN). The clock is synchronized to environmental cycles of light and dark. It is well known, from everyday experience, that adjusting to new light schedules takes several days, though the details of how this adaptation takes place...Does vitamin C help prevent or treat the common cold? Maybe not, after all.
Linus Pauling's book Vitamin C and The Common Cold, published in 1970, was a bestseller and led many people to believe in the value of the vitamin for cold prevention and treatment. But an article in this month's PLoS Medicine reviewing all of the best clinical research on this topic, suggests that the public's enthusiasm for the vitamin may be unjustified. Robert M Douglas of the Australi...NimbleGen to discontinue IPO after Roche's $272.5 million acquisition
NimbleGen had sought to raise $75 million in the IPO, but un...JT Packard exec resigns after settling copyright disputes
Jeff Cason, who had served as president of the Verona-based provider of uninterruptible power supply services, resigned after settling two separate legal disputes. Former executive vice pr...Rexnord to slash debt after quarterly loss
In a report of first quarter 2007 results, CFO Tom Jansen highlighted increased quarterly sales growth and CEO Bob Hitt identified encouraging tre...UW System says goodbye to Lawson after 5 years, $26 million
payroll and benefit softwar...Thyroid hormone treatment hastens recovery after cardiac surgery
Thyroid hormone treatment after surgery requiring heart bypass speeds recovery in children undergoing correction of congenital heart defects, according to a clinical trial published in The Lancet. The effects were greatest in the patients who underwent long and difficult surgeries. Following trauma or surgery or during a critical illness, thyroid hormone concentrations plummet. Ma...Morning after pill effective up to five days after having unprotected sex
Canadian researchers say, that the morning after pill, which rescues many women from unwanted pregnancies can be effective up to five days after having unprotected sex. These findings were released after a study conducted by Dr. Isabel Rodrigues, a professor of family medicine at the University of Montreal in Quebec, Canada, and colleagues. The study is published in the March...Liver donors can thrive after transplant
Contrary to belief that donating liver can injure the donor, it is now established without doubt that a living person can donate a part of his liver to a person needing it. And the good news is that the donor would continue to live well and thrive after donating part of his/her liver. Donation of a piece of the liver's right lobe from one adult to another is a relatively new procedure. I...Recouping blood flow after a stroke
The brain can grow new blood vessels after a minor stroke, which helps to restore blood flow in the damaged area. The brain tries to heal itself after a stroke. We know that people gradually recover lost functions - like speech and movement in many cases. Now a study in laboratory rats reveals that the blood supply of the brain can respond to stroke damage. Researchers at the Harvard...