Volume 7 Issue 242
Published - 14:00 UTC 08:00 EST 30-Aug-2005 
Next Update - 14:00 UTC 08:00 EST 31-Aug-2005

Editor: Susan K. Boyer, RN
Vidyya.
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Further research needed on HIV and aging

HIV is often regarded as a disease of young people, due to its status as a drug-related or sexually transmitted disease. However, the number of people over age 50 who are infected with HIV is significant--and growing--according to an article in the Sept. 15 issue of Clinical Infectious Diseases, now available online. more  

Virginia Tech engineer investigates enzyme link to neurological disease

Several neurologically based afflictions, such as Huntington's, Parkinson's, and Alzheimer diseases, have been correlated to a higher than normal presence of a specific type of enzymes, called transglutaminases (TGase) in the human body. TGases, whose function is to catalyze covalent bonds among proteins, are commonly found in several different human tissues. more

Childhood exposure to second-hand smoke has long-lasting effects

A new study finds early life exposure to second-hand smoke can produce life-long respiratory problems. The study of 35,000 adult non-smokers in Singapore found that those who lived with a smoker during childhood had more respiratory problems, including chronic cough. Study participants who reported eating more fruit and soy fiber as adults seemed to be protected against some of the negative health effects often associated with early tobacco exposure. more  

Scientists determine structure of enzyme that disrupts bacterial virulence

A team of biomedical researchers from Brandeis University and the University of Texas at Austin has determined the first 3-dimensional structure of an enzyme that may be pivotal in preventing certain bacterial infections in plants, animals and humans, according to a study published in the Proceedings of the National Academy of Sciences. more

Were you born to be sad?  

Researchers at the University of Manchester are testing our genetic disposition to depression with a unique internet test. more

Blood flow to brain may be clue to certain dementias 

The amount of blood flowing into the brain may play a larger role in the development of dementia than previously believed, according to a study in the September issue of the journal Radiology. more

Thyroid hormone, brain development, and behavior

Dr. Bjorn Vennstrom and colleagues in Spain and at the Karolinska Institute (Sweden) have identified novel neural functions of thyroid hormone (TH), revealing that it is required during discrete periods of brain development to confer "normal" behavior. more