Evidence map›Paper›PMID 32176040›Full record

ArticleMedicine2020

The correlation between recurrent risk and CYP2C19 gene polymorphisms in patients with ischemic stroke treated with clopidogrel for prevention.

Guohua Liu, Sufang Yang, Siqia Chen

Open access · goldAbstract read
In one paragraph

Article in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
1.0field-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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Pooled it
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  11. Observational
  12. ShouldPharmacogenomics and personalized medicine · 2020
    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

3 authors at 1 institution in 1 country.

Guohua LiuDepartment of Pharmacy.
Sufang YangDepartment of Pharmacy.
Siqia ChenDepartment of Neurology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China.
First Affiliated Hospital of Shantou University Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo explore the correlation between recurrent risk and CYP2C19 gene polymorphisms in patients with ischemic stroke (IS) treated with clopidogrel for prevention.

methodsA total of 289 patients with IS treated with clopidogrel regularly were enrolled in this study, and stroke recurrence of all patients were recorded by follow-up. The correlation between CYP2C19 gene polymorphism and stroke recurrence in patients taking clopidogrel regularly was analyzed.

resultsAfter a mean follow-up period of 6 months, there were 289 patients who took clopidogrel regularly, and 41 of which occurred recurrent stroke. Patients of poor metabolizer and intermediate metabolizer had higher risk of recurrent stroke comparing with patients of extensive metabolize, and the odds ratios were 2.88 (95% confidence interval [CI] 1.31-6.33, P = .068) and 3.00 (95% CI 1.09-8.22, P = .027), respectively. The recurrence risk of *2 (G681A)A allele carriers was 3.30 times that of G allele carriers (P = .0065). The recurrence rate of stroke in patients carrying heterozygous and homozygous *2 allele mutant was 1.96 times (P = .071) and 3.30 times (P = .012) that of patients with wild-type genes. Multifactor logistic regression analysis result indicated carrying loss of function (LOF) allele was an independent risk factor of stroke recurrence.

conclusionFor patients with IS treated with clopidogrel regularly for secondary prevention, poor metabolizer, and intermediate metabolizer patients had higher risk of recurrent stroke comparing with extensive metabolize ones. Carrying CYP2C19 LOF allele is an independent risk factor of stroke recurrence in patients with IS.

Indexed as

AdultAgedAged, 80 and overBrain IschemiaClopidogrelCytochrome P-450 CYP2C19FemaleGenetic Predisposition to DiseaseHumansMaleMiddle AgedPlatelet Aggregation InhibitorsPolymorphism, GeneticRecurrenceRetrospective StudiesRisk FactorsClopidogrelCYP2C19 protein, humanCytochrome P-450 CYP2C19Platelet Aggregation Inhibitors

Identifiers

PMID32176040
PMCPMC7440096
OpenAlexW3012418781

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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.