Evidence map›Paper›PMID 20704703›Full record

ArticleBehavioral and brain functions : BBF2010

Association study between a polymorphism at the 3'-untranslated region of CLOCK gene and attention deficit hyperactivity disorder.

Xiaohui Xu, Gerome Breen, Chih-Ken Chen, Yu-Shu Huang, Yu-Yu Wu, Philip Asherson

Open access · goldAbstract read
In one paragraph

Article in Behavioral and brain functions : BBF, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.7field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 97 citations in OpenAlex.

  1. Article
  2. Review
  3. The Role of mRNA Alternative Processing in Mammalian Neurodevelopment.International journal of molecular sciences · 2025
    Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. The Role of the Circadian System in Attention Deficit Hyperactivity Disorder.Advances in experimental medicine and biology · 2021
    Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Impact of adult attention deficit hyperactivity disorder and medication status on sleep/wake behavior and molecular circadian rhythms.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019
    Article
  16. Article
  17. Genes · 2019
    Article
  18. Common and specific genes and peripheral biomarkers in children and adults with attention-deficit/hyperactivity disorder.The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry · 2018
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 3 countries.

Xiaohui XuMRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, UK. x.xu@iop.kcl.ac.uk
Gerome Breen
Chih-Ken Chen
Yu-Shu Huang
Yu-Yu Wu
Philip Asherson
Chang Gung University · TWKing's College London · GBNational Institute on Drug Abuse · USPsychiatry Research Trust · GB

Funding

Wellcome Trust 079314/4/2/06/2
6 · The paper itself

Abstract

backgroundThe circadian locomotor output cycles kaput (CLOCK) gene encodes protein regulation circadian rhythm and also plays some roles in neural transmitter systems including the dopamine system. Several lines of evidence implicate a relationship between attention-deficit hyperactivity disorder (ADHD), circadian rythmicity and sleeping disturbances. A recent study has reported that a polymorphism (rs1801260) at the 3'-untranslated region of the CLOCK gene is associated with adult ADHD.

methodsTo investigate the association between the polymorphism (rs1801260) in ADHD, two samples of ADHD probands from the United Kingdom (n = 180) and Taiwan (n = 212) were genotyped and analysed using within-family transmission disequilibrium test (TDT). Bonferroni correction procedures were used to just for multiple comparisons.

resultsWe found evidence of increased transmission of the T allele of the rs1801260 polymorphism in Taiwanese samples (P = 0.010). There was also evidence of preferential transmission of the T allele of the rs1801260 polymorphism in combined samples from the Taiwan and UK (P = 0.008).

conclusionThis study provides evidence for the possible involvement of CLOCK in susceptibility to ADHD.

Indexed as

3' Untranslated RegionsPolymorphism, Single NucleotideAdolescentAllelesAttention Deficit Disorder with HyperactivityChildChild, PreschoolCLOCK ProteinsFamilyGenetic Association StudiesGenotypeHumansParentsSequence Analysis, DNATaiwanUnited Kingdom3' Untranslated RegionsCLOCK protein, humanCLOCK Proteins

Identifiers

PMID20704703
PMCPMC2925327
OpenAlexW2160715985

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.