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.

Gene that causes aggression in men under stress discovered

Scientists have found that “macho” gene that makes men behave more aggressively than women under stress. They say this one gene could explain why men have a 'fight or flight' response while women are more likely to try and defuse the situation. The study has been published in the journal BioEssays.

11 Mar 2012

Methylphenidate may affect learning and memory in children with ADHD

New research with monkeys sheds light on how the drug methylphenidate may affect learning and memory in children with attention deficit hyperactivity disorder.

11 Mar 2012

State highlights: Texas doctors feeling the effects of budget cuts; Iowa advocates seeking better services for disabled

(Dr. Javier Saenz's) troubles reflect a statewide problem for doctors who treat a disproportionately high number of the reported 320,000 low-income Texans who are fully and dually eligible for Medicare, the federal insurer of the elderly, and Medicaid, the joint state-federal health care program for indigent children, the disabled and the very poor.

11 Mar 2012

Unknown 'root' extension in hair cells of the inner ear

The hair cells of the inner ear have a previously unknown "root" extension that may allow them to communicate with nerve cells and the brain to regulate sensitivity to sound vibrations and head position, researchers at the University of Illinois at Chicago College of Medicine have discovered. Their finding is reported online in advance of print in the Proceedings of the National Academy of Sciences.

10 Mar 2012

Concerns about aging in good health

Do men harbour concerns about aging in good health? Do they confide these concerns to their physicians? Are men's concerns the same as women's? The answers to these questions can be found in a large cross-sectional survey of 2325 Canadian men, aged 55 to 97 years old, led by Dr. Cara Tannenbaum, Geriatrician and the Michel Saucier Endowed Chair in Geriatric Pharmacology, Health and Aging at the Institut universitaire de gériatrie de Montréal (IUGM) which is affiliated with the Université de Montréal.

10 Mar 2012

Blood vessels that form within brain cancers predominantly not made up of cancer cells

Johns Hopkins scientists have published laboratory data refuting studies that suggest blood vessels that form within brain cancers are largely made up of cancer cells. The theory of cancer-based blood vessels calls into question the use and value of anticancer drugs that target these blood vessels, including bevacizumab (Avastin).

10 Mar 2012

Study uncovers critical process in understanding degeneration of brain cells sensitive to AD

A research group led by Dr. A. Claudio Cuello of McGill University's Faculty of Medicine, Dept. of Pharmacology and Therapeutics, has uncovered a critical process in understanding the degeneration of brain cells sensitive to Alzheimer's disease.

9 Mar 2012

Elekta Clarity 3D system transforms prostate radiotherapy at UHG

Soft tissue imaging with 3D ultrasound both at therapy simulation and just before treatment has transformed prostate radiotherapy at University Hospital Galway.

From Elekta 9 Mar 2012

Single dose of LSD shows promise against alcoholism

Forty years ago, LSD was used in the treatment of alcoholics - with good results. Perhaps it's time to look at it again? In the 1950s, '60s and '70s, researchers in many places in the world experimented with LSD in the treatment of various disorders, including alcoholism. Not all experiments were scientifically tenable by today's standards, but some were.

9 Mar 2012

Maternal obesity may contribute to cognitive impairment in extremely premature babies

Maternal obesity may contribute to cognitive impairment in extremely premature babies, according to a new study by researchers at Wake Forest Baptist Medical Center.

9 Mar 2012

Biologists identify how and where the brain processes FM sweeps

In both animals and humans, vocal signals used for communication contain a wide array of different sounds that are determined by the vibrational frequencies of vocal cords. For example, the pitch of someone's voice, and how it changes as they are speaking, depends on a complex series of varying frequencies. Knowing how the brain sorts out these different frequencies-which are called frequency-modulated (FM) sweeps-is believed to be essential to understanding many hearing-related behaviors, like speech.

9 Mar 2012

MEDVAMC initiates Aeterna Zentaris' AEZS-130 Phase 2A trial in cancer cachexia

Aeterna Zentaris Inc. today announced that the Michael E. DeBakey Veterans Affairs Medical Center, in Houston, Texas, has initiated a Phase 2A trial assessing the safety and efficacy of repeated doses of the Company's ghrelin agonist, AEZS-130 (macimorelin), in patients with cancer cachexia.

9 Mar 2012

Political cartoon: 'Cheapskate?'

Kaiser Health News provides a fresh take on health policy developments with "Cheapskate?" by Harley Schwadron.

8 Mar 2012

Measuring wellbeing in Huntington’s disease

The new tool, the first Huntington’s disease-specific quality of life instrument of its kind, aims to fully capture the impact of this complex disease on the everyday life of sufferers. By using this new tool to more accurately measure the impact of Huntington’s and also any effect of therapeutic interventions, scientists will be in a better position to evaluate the usefulness of interventions on patients’ everyday quality of life to see if there is actually a practical benefit. It is hoped that in this way, this tool will lead to more effective treatments.

8 Mar 2012

Cancer-based blood vessel theory questioned

8 Mar 2012

Patients with advanced Alzheimer’s benefit from drugs: Study finds

According to new developments patients with advanced Alzheimer’s disease could benefit from drug treatment to slow its progression. Scientists have shown for the first time that drugs used to slow the disease in its early stages also work when the condition is advanced, greatly extending the population who could be treated.

8 Mar 2012

Heart rate lowering drug may reduce “implicit” racial prejudices: Study

It was found that volunteers given the beta-blocker, used to treat chest pains and lower heart rates, scored lower on a standard psychological test of “implicit” racist attitudes. They appeared to be less racially prejudiced at a subconscious level than another group treated with a “dummy” placebo pill.

8 Mar 2012

Scientists believe that ageing can be programmed in the womb

Ageing is a complex process involving physical, psychological, and environmental factors. Scientists believe that ageing can be programmed in the womb. One example of stress during pregnancy is the administration of glucocorticoids, i. e. synthetic stress hormones to accelerate fetal lung maturation in premature labor to allow breathing after birth. Could exposure to these stress hormones have an effect on health later in life?

8 Mar 2012

Surgical intervention can be life-restoring for people with intractable temporal lobe epilepsy

While the thought of any type of surgery can be disconcerting, the thought of brain surgery can be downright frightening. But for people with a particular form of epilepsy, surgical intervention can literally be life-restoring.

8 Mar 2012

CB2 receptor involved in regulating impulsive behaviour

A new study lead by the Neuroscience Institute of Alicante reveals how manipulating the endocannabinoid system can modulate high levels of impulsivity. This is the main problem in psychiatric illnesses such a schizophrenia, bipolar disorder and substance abuse.

8 Mar 2012