Medical Research News

RSS

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

Researchers have pinpointed specific gene and protein over-production in metastatic melanoma

Gene amplification is a process that often happens in cancer cells when the normal DNA replication process is altered, causing many copies of the gene to be produced instead of a single copy of a region of a chromosome.

12 Jul 2005

Possible cure for Huntington's disease

Boosting levels of two critical proteins that normally shut down during Huntington's disease, researchers at the University of Wisconsin-Madison and the Cold Spring Harbor Laboratory have cured fruit flies of the genetic, neurodegenerative condition.

12 Jul 2005

Outer lining of the umbilical cord is a rich source of stem cells

CellResearch Corporation in Singapore and its team of scientists, headed by Chief Scientist, Dr Phan Toan Thang, have recently made a revolutionary discovery: that the outer lining of the umbilical cord is a rich source of stem cells.

12 Jul 2005

X-ray crystallography images show how a protein called alpha-actinin performs molecular ballet

As a cell moves forward, physical stress on its skeleton triggers molecular fingers and arms to grasp each other in reinforcing links that stabilize the skeleton, according to images produced by investigators at St. Jude Children's Research Hospital.

12 Jul 2005

Giving oxygen may do more harm than good

Doctors and paramedics who give their patients oxygen - the most commonly administered "drug" in the world - may be doing more harm than good, a Queen's University researcher contends.

11 Jul 2005

Researchers find molecule ephrin-B3 inhibits regrowth of spinal nerve cells

A molecule that helps the body's motor nerve cells grow along proper paths during embryonic development also plays a major role in inhibiting spinal-cord neurons from regenerating after injury, researchers at UT Southwestern Medical Center have found.

11 Jul 2005

Size of the ventromedial prefrontal cortex (vmPFC) in the brain may be associated with the ability to recover emotionally from traumatic events

A new study by researchers from Massachusetts General Hospital (MGH) finds that an area called the ventromedial prefrontal cortex is thicker in volunteers who appear better able to modify their anxious response to memories of discomfort. The report will appear in the Proceedings of the National Academy of Science.

11 Jul 2005