Navigation Links
Genetic marker may predict smoking quantity in African Americans
Date:5/22/2012

In a step toward understanding possible genetic differences in smoking behaviors, a team of researchers co-led by SRI International has identified a genetic marker associated with smoking quantity in people of African ancestry. The study's findings may help guide future public health decisions related to smoking, because the more people smoke, the higher their risk of lung cancer.

The genetic variant, called rs2036527, appears to function as a marker of smoking quantity in African Americans, predicting the number of cigarettes smoked per day. It is on the same nicotine receptor gene, located on Chromosome 15, as another marker previously identified in people of European descent. Earlier studies have also shown that this gene plays a role in limiting nicotine intake by affecting how pleasurable nicotine is, which in turn affects how much nicotine is consumed.

Findings from the Study of Tobacco Use in Minority Populations (STOMP) Genetics Consortium study are published in the May 22, 2012 issue of Translational Psychiatry (part of Nature Publishing Group).

To find the genetic variants for smoking behavior, researchers combined 13 genome-wide association studies. The result included data for genetics and smoking behavior for more than 32,000 African Americans.

Although African Americans are less likely to smoke than European Americans, if they do start smoking, they tend to start smoking later in life, are less likely to quit smoking, and die more often from smoking-related lung cancer. Smoking is the leading cause of premature death among African Americans. STOMP investigators did not assess lung cancer risk, but other researchers have found that the genetic marker (rs2036527) is associated with risk of lung cancer in African Americans.

"This study may have implications for personalized medicine and the need to identify targets for drug discovery." said Sean P. David, M.D., D.Phil., research physician and director of the Translational Medicine program in the Center for Health Sciences in SRI's Policy Division and also a family medicine physician and Clinical Associate Professor of Medicine at Stanford University School of Medicine. "However, we need to be careful not to draw conclusions about the degree to which a genetic variant associated with smoking quantity affects smoker's ability to quit. Future studies of smoking behavior, including smoking cessation clinical trials, should be performed in non-European ancestry groups, so that other informative biomarkers aren't missed."


'/>"/>
Contact: Dina Basin
dina.basin@sri.com
650-862-1657
SRI International
Source:Eurekalert

Related medicine news :

1. Optogenetics project takes top NIDA Addiction Science Award
2. Genetic test identifies eye cancer tumors likely to spread
3. Molecular subtypes and genetic alterations may determine response to lung cancer therapy
4. Genetic predictor of breast cancer response to chemotherapy
5. Advanced genetic screening method may speed vaccine development
6. Genetic abnormalities in benign or malignant tissues predict relapse of prostate cancer
7. Some women may be genetically predisposed to smoking-related hot flashes
8. Genetically modified T cell therapy shown to be safe, lasting in decade-long study of HIV patients
9. Moffitt researcher awarded GE grant to develop tool to detect breast cancer metastasis genetic risks
10. Research Gets Closer to Genetic Roots of Glaucoma
11. Genetic variants, tobacco exposure and lung cancer risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/6/2016)... ... February 06, 2016 , ... With the FCPX LUT: Summer ... to their footage. A LUT is a Lookup Table that contains a mathematical formula ... indicated by the table. By manipulating each pixel, LUT's can change each color range ...
(Date:2/6/2016)... , ... February 06, 2016 , ... ... of eating disorder treatment helps to reduce the frequency and level of relapse. ... Recovery Phase: Re-Establishing Healthy Identity and Purpose,” will explore the critical tasks of ...
(Date:2/5/2016)... ... , ... Love is in the air at King Kullen! The local grocer ... This staple for Valentine’s Day is a must-have, and can be picked up with ... only are long-stem roses available, but also other flower bouquets, elegantly wrapped and ready ...
(Date:2/5/2016)... ... February 05, 2016 , ... Today, the Whole-Food Warrior ... that the much-anticipated feature with author Jahnavi Foster, specialist in healthy vegetarian cuisine, will ... , Each week, on his weekly Whole-Food Warrior TV show, Frank Davis highlights Whole-Food ...
(Date:2/5/2016)... ... 05, 2016 , ... The event is being held on April 7, 2016 ... Minn. Triumph Over Parkinson’s will fund nearly $100,000 for research for the care and ... Parkinson’s disease and is the architect of this informative event to raise awareness and ...
Breaking Medicine News(10 mins):
(Date:2/4/2016)... 2016  The Senior Care Pharmacy Coalition (SCPC) ... Chairman Jason Chaffetz (R-UT) and Ranking ... hearing , "Developments in the Prescription Drug Market," ... questions about abusive pharmacy benefit manager (PBM) pricing ... Ranking Member Elijah Cummings (D-MD) are diligent, serious ...
(Date:2/4/2016)... , Feb. 4, 2016  Montoya Love is recognized ... the field of Pharmaceuticals. Montoya is the Regulatory Systems ... Manufacturing and selling ... Becton Dickinson provides healthcare institutions, clinical laboratories and ... fifty countries across the globe. ...
(Date:2/4/2016)... -- Mettler-Toledo International Inc. (NYSE: MTD ) today ... the highlights: , Sales in local currency ... year.  Reported sales decreased 3% as currency reduced sales ... earnings per diluted share as reported (EPS) were $4.44, ... EPS was $4.65, an increase of 10% over the ...
Breaking Medicine Technology: