Brain News and Research

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The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium, it has the same general structure as the brains of other mammals, but is over three times as large as the brain of a typical mammal with an equivalent body size.

Study sheds light on why addiction is a chronic disease

Drug addiction dramatically shifts a person's attention, priorities, and behaviors towards a focus almost entirely on seeking out and taking drugs. Now, an animal study funded by the National Institute on Drug Abuse, part of the National Institutes of Health, has identified some of the specific long-term adaptations in the brain's reward system that may contribute to this shift.

31 Jul 2008

Mechanism for postpartum depression found in the brains of mice

Researchers have pinpointed a mechanism in the brains of mice that could explain why some human mothers become depressed following childbirth. The discovery could lead to improved treatment for postpartum depression.

31 Jul 2008

Unusual chromosomal changes increase the risk of schizophrenia

People with schizophrenia have an increased number of unusual chromosomal changes, particularly structural changes that have the potential to alter the function of the genes. These results were published today in the scientific journal Nature.

31 Jul 2008

Top Doc slams cancer treatment in Australia

One of Australia's top cancer specialists says the standard of treatment for cancer victims in the country leaves a lot to be desired.

30 Jul 2008

microRNA may influence development of alcohol tolerance

In recent years, a class of small molecules known as microRNAs have been found to play an important role in regulating gene products in most animal and plant species.

30 Jul 2008

Stanford Medicine explores the complex world of clinical trials

Back just 100 years ago, the notion of testing treatments and drugs through randomized clinical trials was unheard of. Clinical trials began to proliferate only in 1800, placebos were first used in 1863 and randomization wasn't introduced until 1923.

30 Jul 2008

Rember, new Alzheimer's drug offers hope to sufferers

An experimental drug to treat Alzheimer's disease has had some promising results in early trials with patients.

30 Jul 2008

Estrogen treatments may sharpen mental performance in some women

Estrogen treatments may sharpen mental performance in women with certain medical conditions, but University of Florida researchers suggest that recharging a naturally occurring estrogen receptor in the brain may also clear cognitive cobwebs.

29 Jul 2008

Sleep gene - search is on!

While scientists and physicians know what happens if you don't get six to eight hours of shut-eye a night, investigators have long been puzzled about what controls the actual need for sleep.

29 Jul 2008

Cerebral malaria may be a major cause of brain injury in African children

Researchers at the University of Minnesota have found that cerebral malaria is related to long-term cognitive impairment in one of four child survivors. The research is published in the current issue of the journal Pediatrics.

29 Jul 2008

Obesity predisposition linked to brain's reward system

The tendency toward obesity is directly related to the brain system that is involved in food reward and addictive behaviors, according to a new study. Researchers at Tufts University School of Medicine (TUSM) and colleagues have demonstrated a link between a predisposition to obesity and defective dopamine signaling in the mesolimbic system in rats.

29 Jul 2008

Healthy children of Alzheimer's patients show early brain changes

Medical College of Wisconsin researchers in Milwaukee have reported that children of Alzheimer's patients who are carriers of a genetic risk factor for Alzheimer's disease have neurological changes that are detectable long before clinical symptoms may appear.

29 Jul 2008

Cholesterol lowering drugs may protect against dementia

A new study has found more evidence that the drugs commonly used to lower cholesterol may also offer protection from dementia and memory loss.

29 Jul 2008

Study first to show range and severity of birth defects associated with Type 1 and Type 2 diabetes

Women who receive a diagnosis of diabetes before they become pregnant are three to four times more likely to have a child with one or even multiple birth defects than a mother who receives a diagnosis of diabetes while pregnant or a mother who is not diabetic, according to a study by the Centers for Disease Control and Prevention (CDC), released in the American Journal of Obstetrics and Gynecology

29 Jul 2008

Bladder problems may leave mark on brain contributing to sleep and attention problems

Bladder problems may leave a mark on the brain, by changing patterns of brain activity, possibly contributing to disrupted sleep and problems with attention. For one in six Americans who have overactive bladder, the involuntary bladder contractions that often trigger more frequent urges to urinate, such mind-body connections may be of more than academic interest.

29 Jul 2008

Australian Alzheimer's trial published in the Lancet

Prana Biotechnology Limited announced today the publication of the results of its Phase 2a clinical trial on Alzheimer's disease patients in The Lancet Neurology journal.

29 Jul 2008

Markers in blood and spinal fluid, and a new imaging agent, show promise for early detection of Alzheimer's

With the continued aging of the population and the growing epidemic of Alzheimer's, early detection of the disease is crucial for risk assessment, testing new therapies, and eventual early intervention with better drugs, once they are developed. Four studies reported today at the Alzheimer's Association's 2008 International Conference on Alzheimer's Disease (ICAD 2008) in Chicago bring us closer to that goal of early detection by describing advances in biomarkers.

29 Jul 2008

Aging impairs the consolidation of memories during sleep

Aging impairs the consolidation of memories during sleep, a process important in converting new memories into long-term ones, according to new animal research in the July 30 issue of The Journal of Neuroscience. The findings shed light on normal memory mechanisms and how they are disrupted by aging.

29 Jul 2008

Alzheimer's disease patients show improvement in trial of new drug

A new drug has been shown to improve the brain function of people with early stage Alzheimer's disease and reduce a key protein associated with the disease in the spinal fluid, in a small study published today in the journal Lancet Neurology and presented at the 2008 Alzheimer's Association International Conference on Alzheimer's Disease.

29 Jul 2008

Laboratory and mouse studies show targeted drug blocks the growth of breast cancer cells that spread to the brain

Using laboratory and mouse models of human breast cancer, researchers have found that a small molecule capable of targeting specific proteins on the surface of breast cancer cells can inhibit the growth of breast cancer cells that migrate to the brain.

29 Jul 2008