Evidence map›Paper›PMID 29347970›Full record

ArticleBMC research notes2018

A synergic effect between CYP2C19*2, CYP2C19*3 loss-of-function and CYP2C19*17 gain-of-function alleles is associated with Clopidogrel resistance among Moroccan Acute Coronary Syndromes patients.

Hind Hassani Idrissi, Wiam Hmimech, Nada El Khorb, Hafid Akoudad, Rachida Habbal, Sellama Nadifi

Abstract read
In one paragraph

Article in BMC research notes, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

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

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

  1. Pooled it
  2. Trial
  3. Association ofPharmaceuticals (Basel, Switzerland) · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Frontiers in cardiovascular medicine · 2022
    Article
  8. Article
  9. Cytochrome P450 Enzymes and Drug Metabolism in Humans.International journal of molecular sciences · 2021
    Review
  10. Observational
  11. 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

6 authors.

Hind Hassani IdrissiLaboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco. hassani-idrissi-hind@hotmail.fr.ORCID http://orcid.org/0000-0002-5558-7780
Wiam HmimechLaboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco.
Nada El KhorbDepartment of Cardiology, University Hospital Center Hassan II, Fes, Morocco.
Hafid AkoudadDepartment of Cardiology, University Hospital Center Hassan II, Fes, Morocco.
Rachida HabbalDepartment of Cardiology, University Hospital Center Ibn Rochd, Casablanca, Morocco.
Sellama NadifiLaboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe main objective of our study was to investigate the association of CYP2C19*2 and CYP2C19*3 loss-of-function and CYP2C19*17 gain-of-function variants of CYP2C19 gene with Clopidogrel resistance in a sample of Moroccan Acute Coronary Syndromes patients.

resultsOur results showed the existence of a synergic effect between the three alleles, statistically very significant, on Clopidogrel resistance among the treated patients (P = 0.0033). For the three variants of the CYP2C19 gene, the heterozygous and homozygous mutant genotypes were the most frequent among ACS patients (CYP2C19*2: 82.76% GA and 10.35% AA; CYP2C19*3: 76.67% GA and 18.33% AA; CYP2C19*17: 66.67% CT and 18.66% TT). Allelic frequencies were 51.73% vs 48.27% (P < 0.001); 56.67% vs 43.33% (P < 0.001); and 52% vs 48% (P = 0.01) for the mutant and wild type alleles of the CYP2C19*2, CYP2C19*3 and CYP2C19*17 variants respectively. Our results support a role of CYP2C19 gene variants as a potential marker of Clopidogrel response. Understanding the functional and clinical consequences of these variants may help for treating patients more effectively, they could be genetically screened and appropriate dose adjustments could be made on the basis of their CYP2C19 genotype.

Indexed as

Genetic VariationAcute Coronary SyndromeAgedAllelesClopidogrelCytochrome P-450 CYP2C19Drug ResistanceFemaleGene FrequencyGenotypeHumansMaleMiddle AgedMoroccoPlatelet Aggregation InhibitorsTiclopidineClopidogrelCYP2C19 protein, humanCytochrome P-450 CYP2C19Platelet Aggregation InhibitorsTiclopidineAcute Coronary SyndromesClopidogrel responseCYP2C19*17CYP2C19*2CYP2C19*3Moroccan population

Identifiers

PMID29347970
PMCPMC5774088

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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.