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Key insight into the process of normal synapse development may lead to improved treatment of conditions such as drug addiction and epilepsy

Communication in the brain travels from one nerve cell to another through critical connections called synapses. These neuron-to-neuron junctions form early in brain development, and their construction was thought to be guided by the nerve cells themselves.

13 Feb 2005

Visual recognition begins with categorization

Take a moment and look at a picture near you. What did you see? How long did it take you to understand what was in the image, meaning how long did it take you to realize the green blob was a tree? Or that the orange circle was a piece of fruit? Most likely you assume that it took you no time at all, you just knew.

13 Feb 2005

New way of transporting medicines into the brain

Dutch researcher Corine Visser investigated a new way of transporting medicines into the brain. Her approach made use of an iron transport system located on the blood-brain barrier. The smaller the medicine, the more easily it penetrates the brain.

13 Feb 2005

Speed dating offers researchers a systematic look at the genuine behavior of people selecting mates

It seems that the heart wants what the heart wants -- and it can figure it out fairly quickly, according to evolutionary psychologists at the University of Pennsylvania. The researchers studied dating data from 10,526 anonymous participants of HurryDate, a company that organizes "speed dating" sessions, and found rare behavioral data on how people genuinely act in dating situations.

13 Feb 2005

Alcohol drinkers three times as lkely to die from injury

People who regularly drink alcohol are three times as likely to die from injury as are non-drinkers and former drinkers of alcohol, according to new research from the Center for Injury Research and Policy at the Johns Hopkins Bloomberg School of Public Health.

10 Feb 2005

St John's Wort helps treat depression

A specially manufactured extract from the herb St John's Wort is at least as effective in treating depression as a commonly prescribed anti-depressant, according to new research published on bmj.com today.

10 Feb 2005

Mouse allergen is everywhere in your house and triggers asthma in children

The amount of mouse allergen found in the air in many inner-city homes could be high enough to trigger asthma symptoms in the children who live there, say researchers at the Johns Hopkins Children's Center.

10 Feb 2005

Experimental drug Revlimid showing promise as treatment for myelodysplastic syndrome (MDS)

Alan List, M.D., leader of the Hematologic Malignancies Program at the H. Lee Moffitt Cancer Center & Research Institute, recently conducted a phase I/II trial of the experimental drug Revlimid showing promise as an innovative way to treat patients with myelodysplastic syndrome (MDS), a form of pre-leukemia.

10 Feb 2005

Protective equipment used in rugby union has only limited effectiveness

Rugby Union has much in common with U.S. football and is played in over 120 countries throughout the world. Much of its value comes from its rich history, traditions, camaraderie and community involvement with the sport.

10 Feb 2005

Researchers show how attention enhances visual perception

The researchers, from NYU's Department of Psychology and Center for Neural Science, found that attending to, or selectively processing information from a given location without directing our eyes to that location, enhances performance in visual tasks as well as the neural activity underlying the processing of ensuing images. The results are published in the latest issue of the journal Neuron.

10 Feb 2005

Sudden emotional stress can result in severe but reversible heart muscle weakness

Shocking news, such as learning of the unexpected death of a loved one, has been known to cause catastrophic events, such as a heart attack.

10 Feb 2005

First evidence of cardiac progenitor cells

The first evidence of cardiac progenitor cells – rare, specialized stem cells located in the newborn heart of rats, mice and humans – has been shown by researchers at the University of California, San Diego (UCSD) School of Medicine. The cells are capable of differentiation into fully mature heart tissue.

10 Feb 2005

Sex hormone progesterone metabolite allopregnanolone reduces stress

A steroid hormone released during the metabolism of progesterone, the female sex hormone, reduces the brain's response to stress, according to research in rats by scientists at Emory University School of Medicine, the Yerkes National Primate Research Center and Atlanta's Center for Behavioral Neuroscience.

9 Feb 2005

Researchers have discovered an ample source of stem cells in an uncharted part of the umbilical cord

The study, published in the February issue of Stem Cells, outlines how researchers discovered that the jelly-like connective tissue surrounding the blood vessels of the human umbilical cord, the so-called "Wharton's Jelly," is rich in mesenchymal progenitor cells – cells that generate bone, cartilage and other tissues – and can be harvested to generate an abundant supply in a short amount of time.

9 Feb 2005

Chronic nicotine exposure worsens some Alzheimer’s-related brain abnormalities

UCI researchers have determined that chronic nicotine exposure worsens some Alzheimer’s-related brain abnormalities, contradicting the common belief that nicotine can actually be used to treat the disease.

9 Feb 2005

Artemisinin could selectively kill cancer cells while leaving normal cells unharmed

Researchers at the University of Washington have blended the past with the present in the fight against cancer, synthesizing a promising new compound from an ancient Chinese remedy that uses cancer cells' rapacious appetite for iron to make them a target.

9 Feb 2005

How polychlorinated biphenyls open brain cells to Parkinson's assault

University of Rochester scientists investigating the link between PCBs, pesticides and Parkinson's disease demonstrated new and intricate reactions that occur in certain brain cells, making them more vulnerable to injury after exposures.

9 Feb 2005

Inserting corrective genes into the brain to fight Parkinson's disease

An international team of scientists has used gene therapy in two separate studies to renew brain cells and restore normal movements in monkeys and rats with a drug-induced form of Parkinson's disease.

8 Feb 2005

Eat carrots to fight cancer

Scientists have given us another reason to eat carrots - a compound found in the popular root vegetable has been found to have an effect on the development of cancer.

8 Feb 2005

Researchers find way to produce cholesterol-lowering snack chips

Brandeis University biology professor K.C. Hayes and Senior Research Associate Andy Pronczuk at the school's Foster Biomedical Research Laboratory, and Senior Scientist Daniel Perlman in the Physics Department have discovered a way to produce chips and other snack foods that can actually lower your cholesterol while you eat them - without having any impact on taste

8 Feb 2005