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New search method could aid in the discovery of biomarkers for breast cancer

Using a super-efficient method they invented to search for a type of cancer-related change in all genes of a cell, Dana-Farber Cancer Institute researchers have discovered new evidence about how the "microenvironment" of breast cancers helps drive the cancers' growth and migration.

13 Jul 2005

Researchers gain better understanding of how nerves need to be reconnected after spinal cord injury

Nerve cells relay messages at blink-of-the-eye speeds by squirting chemicals called neurotransmitters across tiny gaps called synapses to awaiting message receptors. But lots of different receptors and neurotransmitters work simultaneously. Which goes where to send the proper message?

13 Jul 2005

White blood cell called a neutrophil appears to be crucial to abdominal aortic aneurysm formation

Each year, 200,000 Americans find out that the largest blood vessel in their body, the aorta, may burst open at any time. About 20,000 die suddenly from such a rupture. And another 36,000 have surgery to repair or replace the swelling section of aorta before time runs out.

13 Jul 2005

New method may accelerate the way cancer-causing genes are found

Researchers at the University of Minnesota Cancer Center and the National Cancer Institute (NCI) have discovered a new method that could accelerate the way cancer-causing genes are found and could lead to a more accurate identification of the genes, according to two studies in the July 14, 2005, issue of Nature.

13 Jul 2005

Biologists determine structure of a common-cold virus

Biologists at Purdue University have determined the combined structure of a common-cold virus attached to a molecule that enables the virus to infect its host, information that ultimately may help researchers develop methods for treating certain viral infections.

13 Jul 2005

Research looks at social blunders when we are under strain or fatigued

Some of us can hold our tongues better than others but even the best of us will blurt out the truth when we're tired, stressed or distracted, according to a new research report.

13 Jul 2005

Researchers identify six genes associated with lymphocytic bronchitis - could mean new test, treatments

Researchers at the San Francisco VA Medical Center (SFVAMC) and the University of California, San Francisco (UCSF) have identified six genes associated with lymphocytic bronchitis, which is thought to lead to obliterative bronchitis (OB), the most common cause of long-term failure of transplanted lungs.

13 Jul 2005

Blood testing links common foods and irritable bowel syndrome

Researchers using comparison trials determined that irritable bowel syndrome (IBS) patients have elevated food-specific IgG4 antibodies to common foods such as wheat, beef, pork, lamb, and soya bean. These findings are published in the July issue of The American Journal of Gastroenterology.

13 Jul 2005

Abnormal heart rate variability is partially responsible for depression's effects in heart patients

Scientists have known for years that depression increases the risk of dying in the months after a heart attack, but they haven't understood how depression raises that risk.

13 Jul 2005

Research shows key difference between the eye's light-detecting system and the nose's odor-detecting system

Johns Hopkins scientists have uncovered new details of how smelly things create signals in the nose that eventually go to the brain. The findings raise issues about how the process involved has been described for many years in biology textbooks.

13 Jul 2005

Our thirst for novelty begins in the eye itself

Researchers at Harvard University have found evidence that the retina actively seeks novel features in the visual environment, dynamically adjusting its processing in order to seek the unusual while ignoring the commonplace. The scientists report in this week's issue of the journal Nature on their finding that this principle of novelty-detection operates in many visual environments.

13 Jul 2005

Researchers modify software to predict gene transcription

A modification to an "ace" gene prediction program by computer scientists at Washington University in St. Louis now enables scientists to predict the very beginnings of gene transcription start sites and where the first splice occurs thereby defining the first exon of the gene.

13 Jul 2005

Bling Bling bacteria more dangerous!

Researchers in the U.S. have uncovered the interesting fact that gold-colored bacteria appear to cause more disease than colorless strains.

12 Jul 2005

If strawberries weren't red they wouldn't cause allergies

Researchers say if strawberries were another colour they might be safer for allergy sufferers to eat.

12 Jul 2005

Serotonin may play a role in maintaining circadian rhythm

Researchers at the University of Pennsylvania School of Medicine have determined how serotonin decreases the body's sensitivity to light and that exposure to constant darkness leads to a decrease in serotonin levels in the brain of fruit flies.

12 Jul 2005

Dopamine plays critical role in the modulation of sleep, wake, and arousal states

Methamphetamine, the drug of choice for long-distance truckers and college students pulling all-nighters, appears to do a similar trick for fruit flies, too.

12 Jul 2005

New insights into brain cell metabolism from PET and MRI scans

By discovering a crucial piece of submicroscopic information about how the brain converts fuel into energy for neurons, Cornell University biophysicists have gleaned new insights into brain cell metabolism that will allow neurologists to better interpret data from such diagnostic tests as positron emission tomography (PET) scans and a specialized magnetic resonance imaging (MRI) test.

12 Jul 2005