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:6/26/2016)... ... 26, 2016 , ... On June 10-11, 2016, A Forever Recovery, a holistic ... World’s Longest Breakfast Table in Battle Creek, MI, where the rehabilitation facility is located. ... some of the world’s leading providers of cereal and other breakfast foods. Its residents ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the ... several important health care topics including advance care planning, healthcare costs and patient ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern ... Laude and his M.D from the David Geffen School of Medicine at UCLA. He ... Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program ...
(Date:6/24/2016)... ... ... Those who have experienced traumatic events may suffer from a complex set ... drug or alcohol abuse, as a coping mechanism. To avoid this pain and suffering, ... traumatic event. , Trauma sufferers tend to feel a range of emotions, from depression, ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with all ... brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 Research ... Devices Global Market - Forecast to 2022" report to ... the treatment method for the patients with kidney failure, it ... excess fluid from the patient,s blood and thus the treatment ... potassium and chloride in balance. Increasing number ...
(Date:6/23/2016)... startling report released today, National Safety Council research shows ... plan to eliminate prescription opioid overdoses. Prescription Nation ... the worst drug crisis in recorded U.S. history, assigned a "Making ... , New Mexico , Tennessee ... states, three – Michigan , Missouri ...
(Date:6/23/2016)... 23, 2016 Capricor Therapeutics, ... a biotechnology company focused on the discovery, development ... patient enrollment in its ongoing randomized HOPE-Duchenne clinical ... 50% of its 24-patient target. Capricor expects the ... quarter of 2016, and to report top line ...
Breaking Medicine Technology: