31 May '12, 8am

Genes affect the success rate in attempts to quit smoking

(THE KOREA HERALD/ASIA NEWS NETWORK)- Genetics can predict success of smoking cessation and whether a person is likely to respond to drugs for nicotine addiction, United States researchers say. 'We found that the effects of smoking cessation medications depend on a person's genes,' first author Li Shiun Chen of the Washington University School of Medicine in St Louis, said in a statement. The research focused on specific variations in a cluster of nicotinic receptor genes, CHRNA5-CHRNA3-CHRNB4, which prior studies have shown contribute to nicotine dependence and heavy smoking, Dr Li said. The researchers used data from the National Heart Lung and Blood Institute and showed that individuals carrying the high-risk form of this gene cluster reported a two-year delay in the median quit age compared to those with the low-risk genes. Please enable JavaScript to view the comments...

Full article: http://www.straitstimes.com/BreakingNews/ANN/Story/STISto...

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