Navigation Links
New research shows peer drug use may increase an individual's genetic tendency to use drugs
Date:6/21/2010

The nature-nurture debate is usually about how much of something is due to our genes and how much is caused by our environment. New research just published in the academic journal Addiction shows that the case is more interesting for young women who smoke, drink, or use drugs, for two related reasons. First, a young woman with a genetic predisposition to substance use is also predisposed to choose friends who smoke, drink, or use drugs, thereby altering her environment in a way that encourages substance use. Second, a young woman's exposure to substance-using friends not only changes her environment but also increases her genetic inclination to use these drugs regularly, thereby raising even higher her already increased likelihood of substance use.

Using a sample of over 2,000 female twins, researchers from Washington University in St. Louis looked for links between two types of data: 1) women in the sample who regularly used tobacco, alcohol, or drugs and 2) women whose friends were involved in regular substance use. The links they found showed that genetic vulnerability to regular use of alcohol, cigarettes and cannabis is exacerbated by exposure to friends who use alcohol, cigarettes and drugs.

It is well known that adolescents often select peers who engage in behaviors similar to their own. But this study showed that peer selection has a genetic basis whereby one's genetic predisposition to regular substance use is correlated with the likelihood of choosing friends who also use psychoactive substances. The genetic factors that influence our own likelihood of using drugs thus also modify our likelihood of associating with friends who do the same.

However, exposure to these drug-using peers has a second, important influence on our own liability to use drugs. The study found that heritable influences on an individual's own regular substance use increased as they affiliated with more drug-using peers in other words, affiliations with substance-using peers enhances the role that heritable factors play in our own regular substance use. Put simply, increasing affiliations with drug-using peers is correlated with a more 'genetic' form of regular substance use.

According to lead author Dr. Arpana Agrawal, "Nature and nurture don't just combine to produce a woman who smokes, drinks, or uses drugs nurture can also increase the effect of nature."


'/>"/>

Contact: Amy Molnar
amolnar@wiley.com
Wiley-Blackwell
Source:Eurekalert

Related medicine news :

1. New research identifies modifiable risk factors for heart disease
2. Nuvo Research announces early redemption of 5% convertible debentures
3. Researcher to track spread of disease, malware and power outages
4. UCSF Researchers Identify Regulator of Human Sperm Cells
5. Octapharma Accepting Applications for Research Grants Through March 31
6. Valentine Tailgate Party for the Girls with Festive Ideas from Beauty Research
7. New Research Shows Genes of Pregnant Women and Their Fetuses Can Increase the Risk of Preterm Labor
8. University of Maryland chemist receives Astellas Award for blindness prevention research
9. Developing a cyberinfrastructure for comparative effectiveness in cancer research
10. Women should be allowed to eat, drink during labor: Queens University researcher
11. Parkinsons disease research uncovers social barrier
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) of Somerset Hills ... specialty vendors and unique items from across the nation, this holiday-themed event will raise ... offered by the VNA. The boutique will be open Saturday, November 4 (10:00 ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Yisrayl Hawkins, ... week that explains one of the most popular and least understood books in the ... cryptic and puzzling descriptions that have baffled scholars for centuries. Many have tossed it ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... “The Journey: ... faced every danger possible to save lost souls in the Philippines. “The Journey: From ... Carole is a dedicated teacher of the Bible. She has taught all ages and ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent and ... apnea using cutting-edge Oventus O2Vent technology. As many as 18 million Americans ... frequent cessation in breathing. Oral appliances can offer significant relief to about 75 ...
(Date:10/12/2017)... , ... October 12, 2017 , ... IsoComforter, Inc. ( ... announced today the introduction of an innovative new design of the shoulder pad. ... you get maximum comfort while controlling your pain while using cold therapy. By utilizing ...
Breaking Medicine News(10 mins):
(Date:9/22/2017)... 2017 AVACEN Medical (AVACEN) announced that its ... helping those with the widespread pain associated with fibromyalgia ... in Essex, England commented, "I ... experiencing no sleep at all, tremendous pain, with every ... recommend [the AVACEN 100] enough, how this has and ...
(Date:9/18/2017)... , Pa. and KALAMAZOO, Mich. , Sept. ... Penn. , and OptiMed Specialty Pharmacy of ... partnership to offer a strategic hub service that expedites ... highly sought-after personal spirometer, Spiro PD 2.0, and wellness ... A spirometer is a medical device used to measure ...
(Date:9/12/2017)... 12, 2017   EcoVadis , the leading platform for environmental, social ... annual edition of its Global CSR Risk and Performance Index. The report ... based on Scorecard Ratings that analyzed nearly 800,000 data points across the ... ... ...
Breaking Medicine Technology: