Evidence map›Paper›PMID 25994870›Full record

ArticleJournal of human genetics2015

Association analysis of CYP2C9*3 and phenytoin-induced severe cutaneous adverse reactions (SCARs) in Thai epilepsy children.

Supharat Suvichapanich, Jiraphun Jittikoon, Nuanjun Wichukchinda, Wasu Kamchaisatian, Anannit Visudtibhan, Suwat Benjapopitak, Somjai Nakornchai, Wiparat Manuyakorn, Surakameth Mahasirimongkol

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In one paragraph

Article in Journal of human genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Association of decreased CYP2C9 function,Frontiers in pharmacology · 2026
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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

9 authors at 2 institutions in 1 country.

Supharat SuvichapanichDepartment of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.
Jiraphun JittikoonDepartment of Biochemistry, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.
Nuanjun WichukchindaMedical Genetic Centre, Medical Life Science Institute, Department of Medical Science, Ministry of Public Health, Nontaburi, Thailand.
Wasu KamchaisatianDepartment of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Anannit VisudtibhanDepartment of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Suwat BenjapopitakDepartment of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Somjai NakornchaiDepartment of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.
Wiparat ManuyakornDepartment of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Surakameth MahasirimongkolMedical Genetic Centre, Medical Life Science Institute, Department of Medical Science, Ministry of Public Health, Nontaburi, Thailand.
Mahidol University · THRamathibodi Hospital · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CYP2C9 is the key enzyme in aromatic antiepileptic drugs (AEDs) metabolism. CYP2C9*3 is a loss of function polymorphism. This study was designed to investigate genetic association between CYP2C9*3 and aromatic AED-induced severe cutaneous adverse reactions (SCARs) in Thai children. The 37 aromatic AED-induced SCARs patients (20 phenobarbital and 17 phenytoin) and 35 tolerances (19 phenobarbital and 16 phenytoin) were enrolled. CYP2C9*3 was genotyped by allele-specific PCRs. The association between CYP2C9*3 with phenytoin-induced SCARs and phenobarbital-induced SCARs were analyzed in comparison with tolerances and healthy samples. Significant association between phenytoin-induced SCARs and CYP2C9*3 was discovered (odds ratio=14.52; 95% confidence interval (CI)=1.18-∞, P-value=0.044). CYP2C9*3 was not associated with phenobarbital-induced SCARs. This study is the first report of CYP2C9*3 association to phenytoin-induced SCARs in Thai epileptic children. The CYP2C9*3 is a reasonable predictive genetic marker to anticipate SCARs from phenytoin.

Indexed as

AnticonvulsantsChildChild, PreschoolCytochrome P-450 CYP2C9Drug EruptionsEpilepsyFemaleGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansMalePhenytoinSeverity of Illness IndexThailandAnticonvulsantsCYP2C9 protein, humanCytochrome P-450 CYP2C9Phenytoin

Identifiers

PMID25994870
OpenAlexW1484447267

What OpenQuestion holds

Textmetadata
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.