January 13, 2010
No Sign of Superbugs in Isolated Polar Bears
Scant evidence of antibiotic-resistant superbugs has been found in the droppings of Arctic polar bears that are isolated from humans, potentially suggesting that humans are responsible for the spread of such germs in the animal kingdom at large.
Deployment Takes Toll on Army Wives
War isn't just tough on soldiers. Army wives whose husbands were deployed have higher rates of depression, anxiety, sleep disorders and other mental health issues than the wives of soldiers who stayed home, a new study shows.
Migraine, Depression May Have Genetic Link
Two seemingly unrelated problems might share a genetic component that may make some people more likely to suffer from both migraine and depression, Dutch researchers report.
Cutting Parkinson's Drug Dose Linked to Withdrawal Effects
Reduced dosages of dopamine agonists, drugs routinely used to treat Parkinson's disease, can cause symptoms similar to those experienced by addicts in withdrawal, such as anxiety, panic attacks, pain, dizziness and drug cravings, researchers say.
Males' Y Chromosome Not in Decline
The Y chromosome, found only in males, has evolved faster than expected in humans and chimpanzees over the past 6 million years since the two species emerged from a common ancestor, researchers report.
Taking Viagra Won't Spur Risky Sexual Behavior
Men worried that taking Viagra will lead to sexually risky behavior can relax: A new study suggests that drugs for erectile dysfunction don't make men more likely to engage in potentially unhealthy sex.
Chemical BPA Linked to Heart Disease Risk
New research raises the possibility that people who have the highest levels of a chemical known as BPA in their urine are more likely to be diagnosed with heart disease.
Why Antidepressants Don't Work for Everyone
New research is giving scientists a greater understanding of how a brain becomes susceptible to depression and anxiety on a molecular level and why some people are resistant to antidepressants.
Strides Made in Lung Cancer Treatment
Advances in genetics and biomarker identification and testing are finally bearing fruit in the battle against lung cancer, a new set of studies suggests.