Evidence map›Paper›PMID 26822491›Full record

ArticleMedical science monitor : international medical journal of experimental and clinical research2016

Roles of CYP2C19 Gene Polymorphisms in Susceptibility to POAG and Individual Differences in Drug Treatment Response.

Xiang-Long Liu, Qiu-Ju Jia, Li-Na Wang, Zong-Ming Liu, Hai Liu, Xuan-Chu Duan, Xue-Man Lyu

Open access · hybridAbstract read
In one paragraph

Article in Medical science monitor : international medical journal of experimental and clinical research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

2 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
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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

7 authors at 4 institutions in 1 country.

Xiang-Long LiuDepartment of Ophthalmology, Affiliated Hospital of Beihua University, Jilin City, Jilin, China (mainland).
Qiu-Ju JiaDepartment of Ophthalmology, Central Hospital of Jilin, Jilin City, Jilin, China (mainland).
Li-Na WangDepartment of Ophthalmology, China-Japan Union Hospital of Jilin University, Jilin City, Jilin, China (mainland).
Zong-Ming LiuDepartment of Anesthesiology, Jilin Cancer Hospital, Changchun, Jilin, China (mainland).
Hai LiuDepartment of Ophthalmology, The First People's Hospital of Yueyang, Yueyang, Hunan, China (mainland).
Xuan-Chu DuanDepartment of Ophthalmology, The First People's Hospital of Yueyang, Yueyang, Hunan, China (mainland).
Xue-Man LyuDepartment of Ophthalmology, China-Japan Union Hospital of Jilin University, Jilin City, Jilin, China (mainland).
Yueyang Second People's Hospital · CNJilin City Central Hospital · CNJilin Province Tumor Hospital · CNJilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to investigate the roles of cytochrome P450 2C19 (CYP2C19) polymorphisms in primary open-angle glaucoma (POAG) susceptibility and individual responses to drug treatment. MATERIAL/

methodsThis case-control study consisted of 93 cases with POAG and 125 controls. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to analyze CYP2C19 single-nucleotide polymorphisms (SNPs). After timolol treatment, patients were classified into side effect (SE) group and non-side effect (NSE) group. According to drug treatment responses, patients were divided into 3 groups: excellent group (Ex) (IOP ≥8 mm Hg); utility group (Ut) (5 <IOP ≤8 mm Hg), and ineffective group (In) (IOP ≤5 mm Hg). Data analysis was performed using SPSS software.

resultsWe found no statistical differences in the alleles and genotypes frequencies of CYP2C19 between the case group and the control group (both P>0.05). Frequencies of extensive metabolizer phenotype and poor metabolizer phenotype or poor metabolizer phenotype and intermediate metabolizer phenotype were significantly different between the SE group and NSE group (both P<0.05). The distribution of intermediate metabolizer phenotype and extensive metabolizer phenotype were significantly different among Ex group, Ut group, and In group (all P<0.05).

conclusionsWe found no evidence that CYP2C19 polymorphisms are associated with susceptibility to POAG. However, different CYP2C19 metabolizer phenotypes were identified and observed to have important effects on the individual differences in drug treatment response.

Indexed as

Genetic Predisposition to DiseaseAdultAgedCase-Control StudiesCytochrome P-450 CYP2C19FemaleGene FrequencyGlaucoma, Open-AngleHumansMaleMiddle AgedPhenotypePolymorphism, Single NucleotideTimololTreatment OutcomeYoung AdultCytochrome P-450 CYP2C19Timolol

Identifiers

PMID26822491
PMCPMC4737058
OpenAlexW2256145715

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Registered trials

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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.