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.

High rate of disability in extremely premature babies, new research results reveal

The follow-up results of a major study into babies born extremely prematurely have revealed that a high number of these children have a disability, although the levels of severity vary widely.

10 Jan 2005

Scientists identify a protein that regulates alcohol-withdrawal seizures

Seizures are the most life-threatening, as well as disconcerting, symptoms of withdrawal in people who are alcoholics and who abruptly stop drinking. Heavy consumption of alcohol, or ethanol, the substance in beer, wine and liquor that is addictive, leads to changes in the brain.

10 Jan 2005

Groundbreaking study will assist stroke and head injury victims rehabilitate their sight

For the first time, Crawford and his associates used measurements of eye and head movements, computer simulations and brain recordings, to determine how we use vision to guide our movements.

10 Jan 2005

System to help babies avoid brain damage

The same heightened electrical activity that indicates an adult taking a treadmill test isn't getting enough oxygen to his heart is now being measured during labor to see if it can better identify babies in serious distress who need immediate delivery.

9 Jan 2005

Hormone replacement therapy associated with increased risk of stroke

Hormone replacement therapy (HRT) is associated with an increased risk of stroke, especially ischaemic stroke, finds a review of trials published on bmj.com today.

7 Jan 2005

Reduced progression of atherosclerosis tied to statin drugs lowering fats, protein

Aggressive therapy with statins -- drugs that inhibit cholesterol synthesis -- works better than moderate statin therapy in reducing fats and proteins in the blood that have been linked to atherosclerosis, a new multi-center study concludes. Statins’ effects on both complex compounds appear beneficial in cutting patients’ cardiovascular risks.

6 Jan 2005

New insights into the strategies that the brain uses to measure time

From pouring a glass of milk to typing a news article, precise timing--down to the thousandth of a second--is key to the brain's control of movement.

6 Jan 2005

Antibiotics protect nerves in mice by turning on genes

A family of antibiotics that includes penicillin may help prevent nerve damage and death in a wide variety of neurological diseases, including Lou Gehrig's disease, dementia, stroke, and epilepsy, Johns Hopkins researchers have found.

6 Jan 2005

Functional magnetic resonance imaging helps visualize the human brain as a massive, interacting, complex network

A team headed by scientists at Northwestern University, using functional magnetic resonance imaging (fMRI), has shown how to visualize the human brain as a massive, interacting, complex network governed by a few underlying dynamic principles.

5 Jan 2005

Stem cells from umbilical cord blood effectively treated heart attacks

When injected into rats' hearts soon after a heart attack, stem cells taken from human umbilical cord blood (HUCB) greatly reduced the size of heart damage and restored pumping function to near normal. This improvement occurred without the need for drugs to prevent the rats' immune system from rejecting the human cells.

5 Jan 2005

New genetic clues provide better understanding of epilepsy

Two specific areas in chromosome 7 and chromosome 16 have been associated with photosensitivity, an epilepsy-related trait, by a team of European scientists in the January issue of Human Molecular Genetics.

5 Jan 2005

Genomics tools provide clues to what causes 400 million cases of gastrointestinal disease each year

In a study that could benefit medical and food-safety research, scientists have used comparative genomics tools to find clues about why some strains of the bacterium Campylobacter – which each year cause more than 400 million cases of gastrointestinal disease – are more virulent than others.

4 Jan 2005

3 or more alcoholic drinks increases risk of ischemic stroke by 45%

A new study led by researchers at Beth Israel Deaconess Medical Center (BIDMC) and the Harvard School of Public Health (HSPH) has found that heavy drinkers -- men who consume an average of three or more alcoholic beverages per day -- are nearly 45 percent more likely to suffer an ischemic stroke compared with nondrinkers.

4 Jan 2005

Study finds advanced vision testing system highly effective in detecting deficits in pre-verbal children

Clinical results of a new pediatric vision test, the Enfant™ Pediatric Vision Testing System, show a 97 percent sensitivity in detecting vision deficits in children as young as six months of age, according to a study published in the December 2004 issue (Volume 8, Number 6) of the Journal of the American Association for Pediatric Ophthalmology and Strabismus (AAPOS).

4 Jan 2005

Extremely shy children have distinct facial expressions

Children who appear to have higher levels of shyness, or a particular gene, appear to have a different pattern of processing the signals of interpersonal hostility, according to a study in the January issue of The Archives of General Psychiatry.

3 Jan 2005

Scientists have identified genes that promote the growth and recurrence of skin cancer

Dr. Andrzej Dlugosz and colleagues at the University of Michigan and the National Cancer Institute have examined the functions of the Hedgehog (Hh) signaling pathway in basal cell carcinoma, the most common form of cancer, and have uncovered a subset of tumor cells that are resistant to inhibition of the Hh pathway.

28 Dec 2004

Evolution has been working very hard to produce us humans

The genes that regulate brain development and function evolved much more rapidly in humans than in nonhuman primates and other mammals because of natural selection processes unique to the human lineage. Researchers reported their findings in the cover article of the Dec. 29, 2004, issue of the journal Cell.

28 Dec 2004