Crossing the line: how aggressive cells invade the brain
In diseases such as multiple sclerosis, cells of the immune system infiltrate the brain tissue, where they cause immense damage. For many years, it was an enigma as to how these cells can escape from the bloodstream. This is no trivial feat, given that specialized blood vessels act as a barrier between the nervous system and the bloodstream. Until now, tissue sections provided the sole evidence that the immune cells really do manage to reach the nerve cells.
Researchers explore new ways to prevent spinal cord damage using a vitamin B3 precursor
Substances naturally produced by the human body may one day help prevent paralysis following a spinal cord injury, according to researchers at Weill Cornell Medical College. A recent $2.5 million grant from the New York State Spinal Cord Injury Research Board will fund their research investigating this possibility. more
The consumption of melatonin, a natural hormone segregated by the own human body, regulates sleep better than somniferous
Scientists of the University of Granada state that the exogenous administration of melatonin corrects the sleep/wakefulness pace when human biological clock gets altered. more
Green tea shows promise as chemoprevention agent for oral cancer, M. D. Anderson study finds
Green tea extract has shown promise as cancer prevention agent for oral cancer in patients with a pre-malignant condition known as oral leukoplakia, according to researchers at The University of Texas M. D. Anderson Cancer Center. more
Acetaminophen may be linked to asthma in children and adults
New research shows that the widely used pain reliever acetaminophen may be associated with an increased risk of asthma and wheezing in both children and adults exposed to the drug. Researchers from the University of British Columbia, Vancouver, BC, Canada, conducted a systematic review and metaanalysis of 19 clinical studies (total subjects=425,140) that compared the risk of asthma or wheezing with acetaminophen exposure.
Key player identified in cascade that leads to hypertension-related kidney damage
A key player in a cascade that likely begins with stress and leads to high blood pressure and kidney damage has been identified by researchers who say the finding may lead to better ways to control both. more
New Notre Dame study provides insights into the molecular basis of tumor cell behavior
A new study by a team of researchers led by Crislyn D'Souza-Schorey, associate professor of biological sciences at the University of Notre Dame, sheds light on the molecular basis by which tumor cells modulate their surroundings to favor cancer progression.
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