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Friday, May 15, 2009

Prevention Program Helps Teens Override a Gene Linked to Risky Behavior
Friday, May 15, 2009


A family-based prevention program designed to help adolescents avoid substance use and other risky behavior proved especially effective for a group of young teens with a genetic risk factor contributing toward such behavior, according to a new study by researchers at the University of Georgia. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) and the National Institute on Drug Abuse (NIDA), components of the National Institutes of Health, supported the study, which appears in the May/June issue of Child Development.

For two-and-a-half years, investigators monitored the progress of 11-year-olds enrolled in a family-centered prevention program called Strong African American Families (SAAF), and a comparison group. A DNA analysis showed some youths carried the short allele form of 5-HTTLPR. This fairly common genetic variation, found in over 40 percent of people, is known from previous studies to be associated with impulsivity, low self-control, binge drinking, and substance use.

The researchers found that adolescents with this gene who participated in the SAAF program were no more likely than their counterparts without the gene to have engaged in drinking, marijuana smoking, and sexual activity. Moreover, youths with the gene in the comparison group were twice as likely to have engaged in these risky behaviors as those in the prevention group.



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