Evidence map›Paper›PMID 29486545›Full record

ArticlePsychiatry investigation2018

The Alpha-2A Adrenergic Receptor Gene -1291C/G Single Nucleotide Polymorphism is Associated with the Efficacy of Methylphenidate in Treating Taiwanese Children and Adolescents with Attention-Deficit Hyperactivity Disorder.

Hui-Ching Huang, Lawrence Shih-Hsin Wu, Shun-Chieh Yu, Bo-Jian Wu, Ahai Chang Lua, Shin-Min Lee, Chao-Zong Liu

Open access · diamondAbstract read
In one paragraph

Article in Psychiatry investigation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Review and Meta-analysis on the Impact of theBiological psychiatry global open science · 2022
    Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. 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

7 authors at 4 institutions in 1 country.

Hui-Ching HuangDepartment of Pharmacy, Yuli Hospital, Ministry of Health and Welfare, Hualien, Taiwan.
Lawrence Shih-Hsin WuInstitute of Medical Science, Tzu Chi University, Hualien, Taiwan.
Shun-Chieh YuDepartment of General Psychiatry, Yuli Hospital, Ministry of Health and Welfare, Hualien, Taiwan.
Bo-Jian WuDepartment of General Psychiatry, Yuli Hospital, Ministry of Health and Welfare, Hualien, Taiwan.
Ahai Chang LuaDepartment of Laboratory Medicine and Biotechnology, Tzu Chi University, Hualien, Taiwan.
Shin-Min LeeDepartment of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
Chao-Zong LiuDepartment of Pharmacology, School of Medicine, Tzu Chi University, Hualien, Taiwan.
Tzu Chi University · TWYuli Hospital · TWMinistry of Health and Welfare · TWNational Defense Medical Center · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe therapeutic effect of methylphenidate (MPH) in treating attention-deficit/hyperactivity disorder (ADHD) has been related to the alpha-2A adrenergic receptor (ADRA2A) gene -1291C/G single nucleotide polymorphism (SNP). We investigated the effect of MPH in treating Taiwanese children and adolescent with ADHD and its relation to the ADRA2A gene -1291C/G SNP.

methodsThe subjects with DSM-IV ADHD diagnosis underwent a titration period to find out the dose of MPH for maintenance treatment. After 4 weeks maintenance treatment, the effect of MPH was evaluated by the Swanson, Nolan and Pelham version IV total scores. The subjects with more than 25% score reduction were referred to responders and those with ≥50% improvement were considered as better responders. The -1291C/G variant of the ADRA2A gene was identified by DNA sequencing and what relevance it has to the MPH response was examined by binary logistic regression analysis.

resultsOf the 59 subjects, 44 (74.6%) were responsive to MPH treatment and the responsiveness was not shown to be associated with the ADRA2A gene -1291C/G SNP. As the responsive subjects were categorized as moderate responders and better responders and subjected to statistical analysis, the GG homozygotes showed a greater chance to have a better response to MPH treatment than CC homozygotes (p=0.02), with an odds ratio of 32.14 (95% CI=1.64-627.80).

conclusionThe ADRA2A gene -1291C/G SNP is associated with the efficacy of MPH for the treatment of ADHD in Taiwanese children and adolescents. The responsive subjects bearing homozygous -1291G allele are more likely to have a better response to MPH treatment.

Indexed as

Alpha-2A adrenergic receptorAttention-deficit/hyperactivity disorderMethylphenidatePharmacogenetics

Identifiers

PMID29486545
PMCPMC5900374
OpenAlexW2791433310

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.