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.

Discovery of mechanism of action of antibiotic able to reduce neuronal cell death in brain

Virginia Commonwealth University researchers have discovered how an antibiotic works to modulate the activity of a neurotransmitter that regulates brain functions, which eventually could lead to therapies to treat Alzheimer's disease, Huntington's disease, epilepsy, stroke, dementia and malignant gliomas.

11 May 2008

Men more likely to turn to alcohol when they feel down

Women and men tend to have different types of stress-related psychological disorders. Women have greater rates of depression and some types of anxiety disorders than men, while men have greater rates of alcohol-use disorders than women. A new study of emotional and alcohol-craving responses to stress has found that when men become upset, they are more likely than women to want alcohol.

11 May 2008

microRNAs provide more clues to genetics of schizophrenia

Researchers at Columbia University Medical Center have illuminated a window into how abnormalities in microRNAs, a family of molecules that regulate expression of numerous genes, may contribute to the behavioral and neuronal deficits associated with schizophrenia and possibly other brain disorders.

11 May 2008

Fruit fly avoidance mechanism could lead to new ways to control pain in humans

At first, fruit flies eat like horses. Hatching inside over-ripe fruit where they were laid, they feed wildly in the sugar-rich environment until nature sends them an offer they can't refuse. To survive, they must leave the fruit, wander off and burrow into the earth where they avoid food as if it were poison. Only then can the larvae grow and hatch into flies that will take wing to lay their own eggs.

11 May 2008

New guidelines say botulinum toxin effective for many neurological disorders, but not headache

New guidelines developed by the American Academy of Neurology confirm that the drug botulinum toxin is safe and effective for treating a variety of neurological conditions. Surprisingly, the drug may not be effective for chronic headaches, accrding to Allison Brashear, M.D., professor and chairman of the Department of Neurology at Wake Forest University Baptist Medical Center, who helped develop the guidelines.

9 May 2008

Cytopia announces novel anti-cancer drug development collaboration

Cytopia Limited today announced that it has entered into an anti-cancer drug discovery and development collaboration with Cancer Therapeutics CRC Pty Ltd. This agreement leverages Cytopia's early stage drug discovery pipeline of kinase inhibitors, a class of targeted therapeutics that is one of the fastest growing segments of the cancer drug market.

9 May 2008

Big differences in depressed brains

Depressed people may have far fewer of the receptors for some of the brain's "feel good" stress-response chemicals than non-depressed people, new University of Michigan Depression Center research shows.

8 May 2008

Lack of motivation in schizophrenia linked to brain chemical imbalance

A study of patients with psychotic illnesses such as schizophrenia suggests an alternative explanation for why many sufferers lack motivation. The research is described in BioMed Central's journal BMC Psychiatry.

8 May 2008

Nanoworms developed to target tumors

Scientists at UC San Diego, UC Santa Barbara and MIT have developed nanometer-sized "nanoworms" that can cruise through the bloodstream without significant interference from the body's immune defense system and-like tiny anti-cancer missiles-home in on tumors.

7 May 2008

Study suggests caution on a new anti-obesity drug in children

A new class of anti-obesity drugs that suppresses appetite by blocking cannabinoid receptors in the brain could also suppress the adaptive rewiring of the brain necessary for neural development in children, studies with mice have indicated.

7 May 2008

A new search for causes of autism

Dr. Eric Fombonne, from the Research Institute of the MUHC at the Montreal Children's Hospital, is involved in a multi-site consortium to gather DNA samples from 2,000 autism patients and their families over the next three years.

7 May 2008

Enkephalin pathway shows potential as new target for Alzheimer's

Alzheimer's disease (AD) is an incurable disease that is increasing in prevalence and will increase even more rapidly as the Baby Boom generation enters the age of highest risk. The available AD drugs are only partially effective in some patients. New strategies are urgently needed.

7 May 2008

New study shows how sounds are amplified in the inner ear

St. Jude Children's Research Hospital investigators have found that an electrically powered amplification mechanism in the cochlea of the ear is critical to the acute hearing of humans and other mammals. The findings will enable better understanding of how hearing loss can result from malfunction of this amplification machinery due to genetic mutation or overdose of drugs such as aspirin.

7 May 2008

Major mental disorders cost society billions in unearned income

Major mental disorders cost the nation at least $193 billion annually in lost earnings alone, according to a new study funded by the National Institutes of Health's National Institute of Mental Health (NIMH). The study was published in the May 2008 issue of the American Journal of Psychiatry.

7 May 2008

Obesity can increase dementia risk by up to 80 per cent - people who are underweight also face an elevated risk

Being obese can increase the risk of Alzheimer's Disease by as much as 80 per cent, according to a study in the May issue of the UK-based journal Obesity Reviews.

7 May 2008

Suicide victims who were abused have genetic brain difference

Canadian researchers have found that childhood abuse victims who later commit suicide have marked genetic differences in their brains.

7 May 2008

Chemical in plastic baby bottles worrying Brits

Concerns raised by scientists in the U.S. last month about Bisphenol A, a controversial chemical found in most plastic baby bottles has led to calls from groups in Britain for all baby bottles to be clearly labelled.

7 May 2008

Nurse care for schizophrenia patients

Drug and psychosocial interventions for the symptoms of schizophrenic disorders contribute to a lower incidence and prevalence of schizophrenia. Nurses will be able to offer better care through the use of nursing models and theories in the care of Schizophrenics.

6 May 2008

Corticosteroids provide no survival benefit for children with bacterial meningitis

Corticosteroids given to children who are hospitalized for bacterial meningitis do not provide a benefit in survival or in reduced hospital stays, according to a large multicenter study by pediatric researchers. This finding stands in contrast to previous studies in hospitalized adults, for which corticosteroids dramatically reduced mortality.

6 May 2008