Brain

Women with low or high levels of the hormone thyrotropin, which affects thyroid gland function and thyroid hormone levels, appear to have a higher risk of developing Alzheimer's disease, according to a report in the July 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

You may want to soak your brown rice.

Researchers have found that a compound that helps rice seed grow, springs back into action when brown rice is placed in water overnight before cooking, significantly reducing the nerve and vascular damage that often result from diabetes.

Strange things are happening in the lowland tropical forests of Panama and Costa Rica. A tiny parasitic fly is affecting the social behavior of a nocturnal bee, helping to determine which individuals become queens and which become workers.

Getting old isn't just about body aches and pains. As we get older, our risk of falling greatly increases. Old bones don't heal like young ones, and for senior citizens, falls are a leading cause of death.

Philadelphia, PA, July 28, 2008 – Oxytocin was originally studied as the "milk let-down factor," i.e., a hormone that was necessary for breast-feeding. However, there is increasing evidence that this hormone also plays an important role in social bonding and maternal behaviors. A new study scheduled for publication in the August 1st issue of Biological Psychiatry now shows that one way oxytocin promotes social affiliation in humans is by enhancing the encoding of positive social memories.

A new analysis of a 2005 survey of American schoolchildren has identified factors that may be used to help improve school safety. The research, published in BioMed Central's open access journal Annals of General Psychiatry, gives detailed information about the carrying of guns, blades and clubs.

13,707 students participated in the study, 6,664 (50.5%) were male and 7,193 (49.5%) were females. Overall, 10.2% of males and 2.6% of females reported carrying a weapon on school property. An estimated 29.8% of males and 19.3% of females had carried weapons elsewhere.

Switch on the mike, start the recording, the stage is set for the local fauna!

Computer scientists from the University of Bonn, in conjunction with the birdsong archives of Berlin's Humboldt University, have developed a kind of 'Big Brother' for birds. This has nothing to do with entertainment, but a lot to do with the protection of nature. The new type of voice detector involved can reliably recognise the characteristic birdsong of different species of birds, thereby facilitating surveys of the bird population.

LOS ANGELES (July 28, 2008) – In a study using laboratory animals, researchers found that medications commonly prescribed for erectile dysfunction opened a mechanism called the blood-brain tumor barrier and increased delivery of cancer-fighting drugs to malignant brain tumors.

The experiments were conducted at Cedars-Sinai Medical Center's Maxine Dunitz Neurosurgical Institute and published in Brain Research.

What Do Squid Hear?

A recent review of the literature has found that hormone deprivation therapy, a commonly used treatment for prostate cancer, may have subtle adverse effects on cognition in patients-- such as in the ability to recall and concentrate. Published in the September 1, 2008 issue of CANCER, a peer-reviewed journal of the American Cancer Society, the study indicates that clinicians and patients should be aware of these potential effects and watch closely for their appearance.

A recent review of the literature has found that hormone deprivation therapy, a commonly used treatment for prostate cancer, may have subtle adverse effects on cognition in patients--such as in the ability to recall and concentrate. Published in the September 1, 2008 issue of CANCER, a peer-reviewed journal of the American Cancer Society, the study indicates that clinicians and patients should be aware of these potential effects and watch closely for their appearance.

Previous estimates of levels of dementia in the developing world may have substantially underestimated the problem, according to research published today. The findings suggest that policymakers in low-income and middle-income countries may need to re-examine the burden and impact that dementia places on their health services.

Boston, MA—Researchers at Boston University School of Medicine (BUSM) have, for the first time, found that angiotensin receptor blockers (ARBs)—a particular class of anti-hypertensive medicines—are associated with a striking decrease in the occurrence and progression of dementia. Data from this study will be presented this weekend (July 27) at the 2008 International Conference on Alzheimer's disease in Chicago.

WHITE PLAIN, N.Y., JULY 27, 2008 – In a new March of Dimes-funded study of pre-eclampsia, a serious and potentially deadly disorder that affects about 5 percent of pregnancies, researchers have found results in mice that may have important implications for diagnosis and treatment in humans.

BUFFALO, N.Y. -- Children born with hydrocephalus, or "water on the brain" must have shunts implanted to drain the fluid away from the brain to reduce harmful pressure.

While shunts do their job well, the rate of shunt infection in children is very high for a variety of reasons, which requires putting the child through another surgery to replace the shunt, bringing with it more hospital time, potential additional neurological complications and an increased risk of death.