Navigation Links
Genes May Affect Severity of Drug Addiction
Date:3/8/2011

TUESDAY, March 8 (HealthDay News) -- Treatment for drug addiction is affected by a person's genetic makeup and the duration of substance abuse, U.S. scientists report.

A research team at the Brookhaven National Laboratory found that drug addicts who have a certain genetic makeup have lower gray matter density -- and therefore fewer neurons -- in areas of the brain that are important for decision-making, self-control, learning and memory.

"This research shows that genes can influence the severity of addiction," study co-author Nelly Alia-Klein, a medical scientist, said in a Brookhaven news release. "The results suggest that addicted individuals with low MAOA [monoamine oxidase A] genotype may need a different kind of treatment than other addicted individuals who carry the high MAOA genotype."

She said that additional study is needed before treatment strategies should change. "However, addiction treatment professionals and others who manage addicted individuals, such as probation officers and judges, should be informed of these and other new findings in the neurobiology of drug addiction," Alia-Klein said.

The study, which included 40 men addicted to cocaine and 42 non-addicted men, also found that the longer someone abuses cocaine, alcohol and cigarettes, the lower the amount of gray matter in frontal areas of the brain (responsible for decision-making and self-control) and the hippocampus (responsible for learning and memory).

The finding, published March 7 in the Archives of General Psychiatry, suggests that ending drug use may help protect people against such brain changes.

"Only males were part of this study, and therefore it is important for future studies to examine these genetic and brain effects in females as well," Klein said. "Also, further studies will have to be done to track these gene-brain behavior patterns throughout a life span that influence the volume of the brain's neurons."

More information

The U.S. National Institute on Drug Abuse has more about drug addiction treatments.

-- Robert Preidt

SOURCE: Brookhaven National Laboratory, news release, March 7, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Genes Play Role in Prognosis With Non-Small Cell Lung Cancers
2. Researchers Who Discovered First Genes for Stuttering will Present Findings to the National Stuttering Association
3. Genes, environment, or chance?
4. UCLA study reveals how genes interact with their environment to cause disease
5. Long-Distance Runners May Have Endurance in Their Genes
6. Genes Behind Tooth Development Discovered
7. Smoking significantly increases risk of aneurysm in people with certain genes
8. Increasing neurogenesis might prevent drug addiction and relapse
9. Genetic Disease Foundation Encourages Americans to Know Their Genes at KnowYourGenes.org in Observance of World Rare Disease Day
10. Cluster of Genes Tied to Alcoholism
11. Cardiogenesis Reports Fourth Quarter and Full-Year 2009 Results
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genes May Affect Severity of Drug Addiction 
(Date:12/2/2016)... ... December 02, 2016 , ... Mediaplanet’s newest ... patients, standing as living proof that attitude and determination can combine into the ... that spike around the holidays. This campaign will offer patients a new-found hope, ...
(Date:12/2/2016)... ... December 02, 2016 , ... The PAINWeekEnd ... Beach Resort and Spa in Honolulu, offering local frontline clinicians the opportunity to ... , The demand for supplemental training related to pain management has surged ...
(Date:12/2/2016)... ... December 02, 2016 , ... "Pro3rd Accents Volume 2 ... to create versatile lower third titles with just a few clicks of the mouse," ... 2 includes 30 lower third animations. Choose from various styles with accented animations, rigid ...
(Date:12/2/2016)... Miami, FL (PRWEB) , ... December 02, 2016 , ... ... they are winners of $1,000 each from the National Family Partnership and the Drug ... winning families who decorated their homes and the 10 winning schools who decorated their ...
(Date:11/30/2016)... ... November 30, 2016 , ... ... treatment has announced the opening of a new eating disorder treatment center location ... outpatient treatment for adults and adolescents, both males and females ages 10 and ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... SPRING, Md. , Dec. 2, 2016 ... new indication for Jardiance (empagliflozin) to reduce the risk ... diabetes mellitus and cardiovascular disease. "Cardiovascular ... with type 2 diabetes mellitus," said Jean-Marc Guettier ... and Endocrinology Products in FDA,s Center for Drug Evaluation ...
(Date:12/2/2016)... , December 2, 2016 ... global cardiac pacemaker market in its upcoming report titled, "Global Market Study ... a Declining CAGR of -1.4% between 2016 and 2024". The ... Mn in 2015 and this is likely to decline ... revenue, the global cardiac pacemaker market is anticipated to ...
(Date:12/2/2016)... , December 2, 2016 According to ... "Global Market Study on Automated Endoscope Reprocessors: Single Basin Automated ... of 8.6% Between 2016 and 2024 " the global automated endoscope reprocessors ... expected to expand at a CAGR of 7.2% during an ... US$ 1,367.6 Mn by 2024. ...
Breaking Medicine Technology: