Navigation Links
Gene May Be Tied to Both Smoking and ADHD, Study Suggests
Date:10/30/2012

TUESDAY, Oct. 30 (HealthDay News) -- Smoking and attention-deficit/hyperactivity disorder (ADHD) share a common genetic risk factor, and childhood ADHD may increase the likelihood of smoking later in life, a new study suggests.

People with ADHD are more likely to start smoking early and to smoke twice as much as those without ADHD, the researchers noted.

For the new study, the investigators took blood samples from more than 450 children with ADHD, aged 6 to 12, and their siblings and parents. The samples were tested for five genetic variations strongly associated with different aspects of smoking, such as the number of cigarettes smoked every day, and taking up and quitting smoking. The researchers also asked the mothers about their smoking habits during pregnancy.

A genetic variant associated with the number of cigarettes smoked by mothers during pregnancy was more likely than other variants to be associated with ADHD. It was also more likely to be passed on from parents to children and to be associated with more severe ADHD.

This variant was as likely to be found in children whose mothers smoked as it was in those whose mother's did not smoke during pregnancy, which suggests that exposure to tobacco smoke in the womb is not a factor.

The findings suggest that this genetic variant may increase the risk of both ADHD and smoking by prompting behaviors and impaired higher brain function that are typical of childhood ADHD, and which could lead to smoking later in life, concluded Dr. Ridha Joober, of the Douglas Mental Health University Institute in Montreal, and colleagues.

The study was published online Oct. 29 in the journal Archives of Disease in Childhood.

Although these are intriguing findings, further research is needed to determine whether there are actually shared genetic risks for smoking and ADHD, Miriam Cooper and Anita Thapar, of Cardiff University School of Medicine in Wales, wrote in an accompanying editorial.

Such research could lead to a better understanding about developmental and psychiatric disorders in children, the editorialists added in a journal news release.

Although the study found an association between the genetic variant and ADHD and smoking behaviors, it did not prove a cause-and-effect relationship.

More information

The U.S. National Institute of Mental Health has more about ADHD.

-- Robert Preidt

SOURCE: Archives of Disease in Childhood, news release, Oct. 29, 2012


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Smoking During Pregnancy Tied to Extra Weight in Kids
2. Indoor workplace smoking bans garner strong support from Hoosiers
3. Smoking causes asthma in second generation offspring
4. Smoking and hyperactivity share common genetic risk factor
5. Overweight and smoking during pregnancy boost risk of overweight kids
6. Women Who Quit Smoking May Gain Up to 10 Years of Life: Study
7. Models developed from the PLCO may help identify at-risk patients for adverse smoking outcomes
8. Quitting Smoking Just as Hard for Teens: Study
9. Passive smoking also affects neurodevelopment in babies
10. Smoking abstinence tough for teens, too
11. Teen Obesity Linked to Moms Smoking in Pregnancy: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gene May Be Tied to Both Smoking and ADHD, Study Suggests
(Date:6/23/2017)... ... June 23, 2017 , ... All-Star Insurance, a family managed ... clients throughout eastern Texas, is announcing the launch of a new charity drive to ... statistics in the United States reveal that an estimated 252, 710 new cases of ...
(Date:6/22/2017)... ... June 22, 2017 , ... Plastic Surgery Associates is proud to ... for 2017. Each year, research and information firm, Castle Connolly, releases their list of ... 2015, this marks the 3rd time that Dr. Canales has been recognized ...
(Date:6/22/2017)... ... ... Despite its pervasiveness, many physicians are unfamiliar with how best to treat ... practice. Now, however, a timely review has been published in the Journal of ... NeuP and educating preclinical scientists on its diagnosis and choice of treatment. , The ...
(Date:6/22/2017)... (PRWEB) , ... June 23, 2017 , ... ... in the fight against hunger on June 21, 2017, at the Emeryville Center ... food insecurity and malnutrition around the world. , Rise Against Hunger (formerly Stop ...
(Date:6/20/2017)... , ... June 20, 2017 , ... After months of negotiations, FaceCradle USA is proud ... on Wednesday, June 21. , “Introducing our product on QVC is something we all ... promote our travel pillow to more than 90 million homes in the United States,” said ...
Breaking Medicine News(10 mins):
(Date:6/8/2017)... 2017  StatLab Medical Products ("StatLab" or ... of diagnostic supplies for the anatomic pathology ... Company LP ("Cressey & Company"), a healthcare-focused ... investment in the Company. Cressey & Company ... selling shareholder, Prairie Capital, L.P., with certain ...
(Date:6/5/2017)... , June 5, 2017 Kohll,s Pharmacy ... the United States . The Raizer is ... a fallen person up to an almost-standing position ... and operated by one assistant and does not ... is simple enough that a child can operate it, ...
(Date:5/30/2017)... , May 30, 2017 Hill-Rom Holdings, Inc. ... Annual Global Healthcare Conference on Tuesday, June 13, 2017, ... John Greisch , Hill-Rom,s president and chief executive officer, is ... The live audio webcast can be accessed at http://ir.hill-rom.com/events.cfm ... conclusion of the live event through September 13, 2017. ...
Breaking Medicine Technology: