Navigation Links
NIDA study identifies genes that might help some people abstain from smoking

Scientists supported by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health, have for the first time identified genes that might increase a person’s ability to abstain from smoking. The breakthrough research was conducted by Dr. George Uhl at NIDA’s Intramural Research Program and a team led by Dr. Jed Rose at the Center for Nicotine and Smoking Cessation Research at Duke University Medical Center.

The study, published in the journal BMC Genetics, available on line April 2, brings researchers a step closer toward tailoring individualized drug therapy for addiction based on an individual’s unique genetic makeup.

“This research marks the first time we’ve been able to identify genes involved in the ability to quit smoking,?says NIDA Director Dr. Nora D. Volkow. “It marks a movement from identifying the genetics of addiction vulnerability to identifying the genetic basis of successful abstinence. This knowledge could impact the success rate of cessation programs by helping health care providers choose the most appropriate treatment based on individual differences.?

Dr. Uhl and his colleagues performed a genome-wide analysis on the DNA of two types of nicotine-dependent individuals, one that was able to successfully quit the cigarette- smoking behavior and one that was not.

“We identified 221 genes that distinguished successful quitters from those who were unsuccessful,?says Dr. Uhl. “We know the functions of about 187 of these genes, but 34 have functions that are unknown at present. We also found that at least 62 of the genes that we had previously identified as playing roles in dependence to other drugs also contribute to nicotine dependence.?

Genes that harbor variants that contribute to both success in quitting smoking and in vulnerability to become dependent on multiple substances include cadherin 13 (a molecule involved in cell adhesion, which governs how cells recognize and connect t o their neighbors) and a cyclic G-dependent protein kinase gene, which plays a key role in normal brain development. In addition to genes implicated in intracellular signaling and intercellular interactions, a number of genes involved in other processes have also been identified. While many of the genes identified through this effort make sense because of their role in supporting new neural connections in the brain, more research is now needed to understand the actual mechanisms through which they may increase or reduce the rates of successful quitting.

Dr. Uhl says he and his colleagues have replicated this research in another sample, as he reported at the February 2007 meeting of the Society for Research on Nicotine and Tobacco.

“These findings provide ample justification for continuing the search for even more genetic variants associated with smoking cessation success,?says Dr. Volkow. “We soon may be able to make use of this information to match treatments with the smokers most likely to benefit from them.?
'"/>

Source:NIH/National Institute on Drug Abuse


Related biology news :

1. Bioartificial kidney under study at MCG
2. W.M. Keck Foundation funds study of friendly microbes
3. Yellowstone microbes fueled by hydrogen, according to U. of Colorado study
4. Genome-wide mouse study yields link to human leukemia
5. Clam embryo study shows pollutant mixture adversely affects nerve cell development
6. New imaging method gives early indication if brain cancer therapy is effective, U-M study shows
7. Same mutation aided evolution in many fish species, Stanford study finds
8. Sequencing of marine bacterium will help study of cell communication
9. Genetically modified rice in China benefits farmers health, study finds
10. A new study examines how shared pathogens affect host populations
11. NYU study reveals how brains immune system fights viral encephalitis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/21/2016)... , June 21, 2016 NuData Security announced ... new role of principal product architect and that ... director of customer development. Both will report directly ... officer. The moves reflect NuData,s strategic growth in ... to high customer demand and customer focus values. ...
(Date:6/9/2016)... , June 9, 2016  Perkotek an innovation leader in attendance control systems is ... log work hours, for employers to make sure the right employees are actually signing ... http://photos.prnewswire.com/prnh/20160609/377486LOGO ... ... ...
(Date:6/2/2016)... The Department of Transport Management (DOTM) of ... project, for the , Supply and Delivery of ... Infrastructure , to Decatur , ... Management Solutions. Numerous renowned international vendors participated in the tendering ... selected for the most compliant and innovative solution. The contract ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 27, 2016  Global demand for enzymes is ... 2020 to $7.2 billion.  This market includes enzymes ... products, biofuel production, animal feed, and other markets) ... biocatalysts). Food and beverages will remain the largest ... consumption of products containing enzymes in developing regions.  ...
(Date:6/27/2016)... ... 2016 , ... Parallel 6 , the leading software as a service ... Virtual Patient Encounter CONSULT module which enables both audio and video telemedicine communication ... , Using the CONSULT module, patients and physicians can schedule a face to face ...
(Date:6/27/2016)... BOSTON , June 27, 2016   Ginkgo ... biology to industrial engineering, was today awarded as ... a selection of the world,s most innovative companies. ... at scale for the real world in the ... organism engineers work directly with customers including Fortune ...
(Date:6/24/2016)... ... June 24, 2016 , ... Researchers at the Universita Politecnica delle ... people with peritoneal or pleural mesothelioma. Their findings are the subject of a new ... , Diagnostic biomarkers are signposts in the blood, lung fluid or tissue of mesothelioma ...
Breaking Biology Technology: