Anxiety drugs effectiveness hit, miss
Published: April 21, 2008 at 6:03 PM
ANN ARBOR, Mich., April 21 (UPI) -- About half of all people who take medicine for an anxiety disorder aren't helped much, but U.S. researchers say it is impossible to predict who will benefit.
However, University of Michigan Medical School researchers are working to help doctors and patients choose anxiety treatments, by probing the connection between brain activity, genetics and medication.
In a placebo-controlled design, Dr. K. Luan Phan and his former University of Chicago colleagues, used brain imaging on volunteers given delta-9-tetrahydrocannabinol, or THC, the active ingredient in marijuana, and exposing them to photographs of emotional faces, which served as signals of social communication.
The study, published in the Journal of Neuroscience, showed that THC reduces the response to threat in a brain region called the amygdala, allowing the researchers to zero in on an area of the brain that might serve as a good target for new anti-anxiety drugs.
In a new clinical trial, Phan is searching for more clues as to how anxiety treatment could be tailored to the individual patient, to give the best chance that a treatment will work for him or her.
However, University of Michigan Medical School researchers are working to help doctors and patients choose anxiety treatments, by probing the connection between brain activity, genetics and medication.
In a placebo-controlled design, Dr. K. Luan Phan and his former University of Chicago colleagues, used brain imaging on volunteers given delta-9-tetrahydrocannabinol, or THC, the active ingredient in marijuana, and exposing them to photographs of emotional faces, which served as signals of social communication.
The study, published in the Journal of Neuroscience, showed that THC reduces the response to threat in a brain region called the amygdala, allowing the researchers to zero in on an area of the brain that might serve as a good target for new anti-anxiety drugs.
In a new clinical trial, Phan is searching for more clues as to how anxiety treatment could be tailored to the individual patient, to give the best chance that a treatment will work for him or her.
© 2008 United Press International. All Rights Reserved.
This material may not be reproduced, redistributed, or manipulated in any form.
This material may not be reproduced, redistributed, or manipulated in any form.
» Next in Health:
Healthcare costs employees one month's pay
Latest Headlines
Most Popular
- Spears: Bloating not due to pregnancy
- Sen. Kennedy rushed to Mass. hospital
- Source: Romo to escort Simpson to wedding
- Claim: Obese people cause global warming
- Winehouse's husband blamed for problems
- Riverside, Calif., tops gas prices list
- D.C. cops getting semiautomatic rifles
- Dawkins among Einstein letter bidders