home
RSS
ADHD is a genetic condition, study says
September 29th, 2010
06:30 PM ET

ADHD is a genetic condition, study says

A new study in the Lancet provides the first direct evidence that genetic abnormalities are responsible for attention-deficit hyperactivity disorder, ADHD.

Although previous research had shown that ADHD can be inherited, no specific genes have been identified before that seem to underlie this condition. But that doesn't mean that someone with these particular genetic markers will have ADHD, experts say.

"This tells us that there is a biological marker that tells us that this person is susceptible to develop this disease," said Dr. Robert Marion, chief of genetics and developmental medicine at the Children’s Hospital at Montefiore and Albert Einstein College of Medicine, who was not involved in the study.

Researchers led by Dr. Nigel Williams at the Cardiff University School of Medicine in Wales fully analyzed data from 366 children with ADHD and 1,047 who did not have ADHD.

The Lancet study finds that children with ADHD have more large, rare copy-number variants than children without the condition. "Copy-number variants" are pieces of DNA that are either missing or extraneous in the chromosomes. Other studies have suggested that these variants may be associated with schizophrenia, autism, epilepsy, and other neurodevelopmental disorders.

Specifically, this study suggests a shared biological basis between ADHD and autism because of the shared genetic characteristics found in this study. Researchers also found genetic overlaps with schizophrenia.

""Eventually we’re going to be able to do testing that will identify susceptibility to ADHD or other conditions," Marion said.

But that test won't be available any time soon, especially because there appear to be a large number of variations in DNA that predispose a person to ADHD, Marion said.

The results suggest that ADHD is "not purely a social construct," the study authors wrote. "It’s a real hard and true disorder," Marion added.

On the other hand, this doesn't rule out environmental factors, Marion said. It may be that specific environments determine whether a person with these genetic variations goes on to develop ADHD, autism, schizophrenia, or nothing at all. However, scientists do not yet know precisely what those factors are.

In the future, as more becomes known about the genetics of ADHD, interventions may be tailored toward specific children before they begin to have serious problems in school, Marion said.

The study's "results are exciting, but how these findings will be clinically translated is still speculative," writes J. Peter Burbach, of the University Medical Center Utrecht in the Netherlands, in a Comment in the journal. More research should be done to further examine the associations between these genes and their outcomes.

ADHD has caused a great deal of controversy as parents struggle to appropriately treat their children.

Given that there may be nearly 1 million misdiagnoses of ADHD in the United States, a better grip on the biological basis of it may help mental health professionals distinguish ADHD from other problems.


soundoff (618 Responses)
  1. FbsgZisse

    cialis black generic cialis prices cialis bleck

    February 15, 2021 at 21:28 | Report abuse | Reply
  2. NbnhZisse

    cheap brand viagra http://vigedon.com/ sildenafil 100mg canadian pharmacy

    February 16, 2021 at 02:30 | Report abuse | Reply
  3. AhbzEncox

    payday loans telford payday advance without a bank account where can i cash advance american express

    February 17, 2021 at 01:55 | Report abuse | Reply
  4. AbcfTeneseelt

    xanax with viagra http://viagriyvik.com/ buy viagra using paypal

    February 18, 2021 at 05:12 | Report abuse | Reply
  5. zithromax 1000mg

    zithromax 100 mg zithromax pill zithromax 500 mg tablets

    February 19, 2021 at 23:24 | Report abuse | Reply
  6. ClarkTauts

    le72a ls670 8czx

    February 28, 2021 at 14:54 | Report abuse | Reply
  7. KndnMile

    viagra without a doctor prescription usa how long does viagra take viagra warnings

    March 1, 2021 at 18:54 | Report abuse | Reply
  8. FjjuZisse

    walgreens viagra http://viagraonlinejc.com/ viagra commercial actress 2015

    March 2, 2021 at 10:49 | Report abuse | Reply
  9. NbmoZisse

    generic cialis site:.au cialis price comparison no prescription cialis in canada pharmacy

    March 2, 2021 at 16:43 | Report abuse | Reply
  10. FbshEncox

    https://thesisacloud.com/ – help thesis good thesis statement phd no thesis best thesis editing services

    March 23, 2021 at 22:47 | Report abuse | Reply
  11. LmoppEncox

    http://essaywriteris.com/ – expert essay writers buy essay online cheap best website for essays who will write my essay for me

    March 24, 2021 at 19:53 | Report abuse | Reply
  12. JvqqEncox

    https://dissertationahelp.com/ – dissertation help online dissertation topics examples of dissertation dissertation binding

    March 24, 2021 at 21:27 | Report abuse | Reply
  13. FbshEncox

    https://thesisacloud.com/ – thesis writing tips thesis editing services help in thesis writing thesis literature review

    March 26, 2021 at 16:50 | Report abuse | Reply
  14. GrvCrulk

    https://kloviagrli.com/ – cheapest viagra https://vigedon.com/ – does viagra make your penis bigger https://llecialisjaw.com/ – generic cialis 20mg https://jwcialislrt.com/ – cialis interactions https://jecialisbn.com/ – cialis 20 mg price costco

    March 27, 2021 at 02:10 | Report abuse | Reply
  15. BrfgMile

    https://ljcialishe.com/ – over the counter cialis walgreens https://cialisvja.com/ – cialis or viagra https://viagraonlinejc.com/ – viagra and cialis https://viagratx.com/ – female viagra walgreens https://buycialisxz.com/ – how much cialis to take

    March 30, 2021 at 03:23 | Report abuse | Reply
  16. FbshEncox

    https://thesisacloud.com/ – thesis statistics help phd thesis database write my thesis thesis proposal help

    March 31, 2021 at 22:25 | Report abuse | Reply
  17. FbshEncox

    https://thesisacloud.com/ – thesisacloud.com thesis for phd thesisacloud.com writing my thesis

    April 8, 2021 at 15:46 | Report abuse | Reply
  18. Gaye Bertella

    Thanks for expressing your ideas. Something is that college students have an option between federal government student loan and a private education loan where it can be easier to decide on student loan debt consolidation than with the federal student loan.

    https://extraproxies.com/citizen-journalist-in-india/

    April 12, 2021 at 13:25 | Report abuse | Reply
  19. do you need prescription for canadian perscribition of cialis in usa

    canadian generic cialis 20mg https://canadacialisstore.com/ canadian pharmacy tadalafil viagara cialis

    April 15, 2021 at 20:23 | Report abuse | Reply
  20. cvs pharmacy male enhancement pills

    erectile performance https://canadaerectiledysfunctionpills.com/ erectile pills online india

    April 16, 2021 at 10:35 | Report abuse | Reply
  21. vardenafil hcl 20mg tab

    vardenafil nortwest pharmacy https://vegavardenafil.com/ vardenafil 20mg dosage

    April 17, 2021 at 05:39 | Report abuse | Reply
  22. can viagra be legally bought from canada

    pfizer viagra canada pharmacy https://canadaviagrastore.com/ getting viagra from canada with no prescription

    April 20, 2021 at 08:42 | Report abuse | Reply
  23. FbsfEncox

    london drugs canada https://uspharmus.com/ Thorazine

    April 23, 2021 at 06:18 | Report abuse | Reply
  24. BbdfMile

    what does viagra do? http://gensitecil.com/ – over the counter viagra cvs is viagra a controlled substance

    April 24, 2021 at 05:23 | Report abuse | Reply
  25. GvdbCrulk

    tadalafil 20 mg soft chewable tablets https://boxtadafil.com/ tadalafil goodrx

    April 24, 2021 at 08:42 | Report abuse | Reply
  26. RfvbZisse

    cialis online america https://cileve.com/ order cialis online cheap generic

    April 24, 2021 at 10:57 | Report abuse | Reply
  27. LhdvZisse

    5mg cialis http://asciled.com/ cialis egypt

    April 25, 2021 at 03:31 | Report abuse | Reply
  28. RfvbZisse

    cheap cialis http://cileve.com/ cheep cialis

    April 25, 2021 at 20:00 | Report abuse | Reply
  29. LrbsEncox

    does generic levitra work levitra pills levitra package insert

    April 25, 2021 at 22:24 | Report abuse | Reply
  30. LrbsEncox

    levitra 20 mg cost http://uslevitraanna.com/ levitra dosage timing

    April 25, 2021 at 23:04 | Report abuse | Reply
  31. JbsdEncox

    Lasix https://onlinecanda21.com/ canada rx

    April 26, 2021 at 02:45 | Report abuse | Reply
  32. AbdgEncox

    Fildena http://canadianeve21.com/ Tegretol

    April 26, 2021 at 06:17 | Report abuse | Reply
  33. LhdvZisse

    viagra, cialis levitra online https://asciled.com/ cialis

    April 26, 2021 at 17:03 | Report abuse | Reply
  34. JbsdEncox

    discount canadian drugs http://onlinecanda21.com/ national pharmacies online

    April 26, 2021 at 22:47 | Report abuse | Reply
  35. GvdbCrulk

    combitic global caplet pvt ltd tadalafil https://boxtadafil.com/ – 20 cialis mg tadalafil ambrisentan and tadalafil

    April 27, 2021 at 13:18 | Report abuse | Reply
  36. FbsfEncox

    Duphaston http://uspharmus.com/ Frumil

    April 27, 2021 at 17:54 | Report abuse | Reply
  37. AbdgEncox

    pharmacies online https://canadianeve21.com/ canadian pharmacy online viagra

    April 27, 2021 at 21:34 | Report abuse | Reply
  38. avanafil

    avana 50 mg buy avanafil usa

    April 28, 2021 at 00:49 | Report abuse | Reply
  39. canadian pharmacy generic cialis

    do you need prescription for canadian prescription of cialis in usa https://canadacialisstore.com/ canadian viagra cialis

    April 28, 2021 at 11:05 | Report abuse | Reply
  40. FbsfEncox

    trust pharmacy canada https://uspharmus.com/ – buying prescription drugs canada Uroxatral

    May 1, 2021 at 02:42 | Report abuse | Reply
  41. RfvbZisse

    cialis generic canada pharmacy https://cileve.com/ – cialis at canadian pharmacy cialis with dapoxetine

    May 1, 2021 at 04:38 | Report abuse | Reply
  42. BbdfMile

    what drugs should not be taken with viagra? http://gensitecil.com/ african viagra

    May 1, 2021 at 06:41 | Report abuse | Reply
  43. viagra without a doctor prescription in canada

    generic viagra canada https://canadaviagrastore.com/ viagra canada pharmarcy

    May 1, 2021 at 16:16 | Report abuse | Reply
  44. LhdvZisse

    us cialis online pharmacy https://asciled.com/ cialis pre

    May 2, 2021 at 00:07 | Report abuse | Reply
  45. RfvbZisse

    cialis payment paypal https://cileve.com/ – cialis no prescription overnight shipping generic cialis uk online

    May 2, 2021 at 21:06 | Report abuse | Reply
  46. priligy

    buy priligy priligy 30

    May 3, 2021 at 15:10 | Report abuse | Reply
  47. FmrfEncox

    cialis brand no prescription needed https://cialisee.com/ cialis canada org doc

    May 4, 2021 at 02:00 | Report abuse | Reply
  48. BbshMile

    what happens when you take viagra for the first time http://loxviagra.com/ – street value of viagra buy viagra connect usa

    May 4, 2021 at 17:49 | Report abuse | Reply
  49. GtnbCrulk

    how long does it take for viagra to take effect https://jokviagra.com/ – extenze vs viagra how long does viagra work

    May 4, 2021 at 19:44 | Report abuse | Reply
  50. RebfZisse

    buy cialis generic online 10 mg https://rcialisgl.com/ viagra c20 cialis

    May 5, 2021 at 08:49 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10

Leave a Reply to LhdvZisse


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.