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)... Little Rock, AR (PRWEB) , ... October 13, ... ... owned firm with locations throughout Arkansas that offers insurance and financial preparation services, ... to benefit the Rock City Rescue organization. , Rock City Rescue is a ...
(Date:10/13/2017)... ... October 13, 2017 , ... The International Association ... standards of excellence for the field of eating disorders, announces the opening of ... 2018 in Orlando, Florida at the Omni Resort at ChampionsGate. , ...
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes ... of the facility as part of a disaster drill on October 3rd. , Apple ... Shelton City Emergency Manager, as well as the Connecticut Long Term Care Mutual ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run ... This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed ... geared towards children of all ages; it is a non-competitive, non-timed event, which is ...
(Date:10/13/2017)... ... 13, 2017 , ... “The Journey: From the Mountains to the Mission Field”: ... souls in the Philippines. “The Journey: From the Mountains to the Mission Field” is ... Bible. She has taught all ages and currently teaches a class of ladies at ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... Sept. 28, 2017 Cohen Veterans Bioscience and ... use of wearable and home sensors for real-time monitoring ... Signal Foundation, a nonprofit organization focused on disruptive health ... an affordable analytical system to record and integrate behavioral, ... ...
(Date:9/25/2017)... , Sept. 25, 2017   Montrium ... Master File solutions, today—from the IQPC Trial Master ... , NL)—announced that EastHORN Clinical Services has ... clinical programs and TMF management. EastHORN, a leading ... eTMF platform to increase transparency to enable greater ...
(Date:9/22/2017)... Md. , Sept. 22, 2017  As the ... Republican Senators Bill Cassidy (R-LA) and ... Information notes that the medical device industry is in ... medical device tax, the 2.3% excise tax on medical ... But they also want covered patients, increased visits and ...
Breaking Medicine Technology: