Evidence map›Paper›PMID 29328413›Full record

ArticleMolecular medicine reports2018

Prevalence of the CYP2C19*2 (681 G>A), *3 (636 G>A) and *17 (‑806 C>T) alleles among an Iranian population of different ethnicities.

Mahshid Dehbozorgi, Behnam Kamalidehghan, Iman Hosseini, Zahra Dehghanfard, Mohammad Hossein Sangtarash, Maryam Firoozi, Fatemeh Ahmadipour, Goh Yong Meng, Massoud Houshmand

Open access · hybridAbstract read
In one paragraph

Article in Molecular medicine reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
4.2field-weighted citation impact, top 7% 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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Cilostazole versus clopidogrel in acute large-vessel moderate and moderate-to-severe ischemic stroke: a randomized controlled trial.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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  13. The Frequency ofThe application of clinical genetics · 2025
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  20. Impact of Pharmacogenomics in Clinical Practice.Pharmaceuticals (Basel, Switzerland) · 2023
    Review
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 6 institutions in 2 countries.

Mahshid DehbozorgiDepartment of Biology, University of Sistan and Baluchestan, Zahedan 98155‑987, Iran.
Behnam KamalidehghanMedical Genetics Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran 198396‑3113, Iran.
Iman HosseiniDepartment of Cellular and Molecular Biology, Nourdanesh Institute of Higher Education, Isfahan 8351711111, Iran.
Zahra DehghanfardDepartment of Cellular and Molecular Biology, Nourdanesh Institute of Higher Education, Isfahan 8351711111, Iran.
Mohammad Hossein SangtarashDepartment of Biology, University of Sistan and Baluchestan, Zahedan 98155‑987, Iran.
Maryam FirooziDepartment of Medical Genetics, National Institute of Genetic Engineering and Biotechnology, Tehran 14965/161, Iran.
Fatemeh AhmadipourPharmacy Department, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia.
Goh Yong MengDepartment of Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor 43400, Malaysia.
Massoud HoushmandDepartment of Medical Genetics, National Institute of Genetic Engineering and Biotechnology, Tehran 14965/161, Iran.
National Institute of Genetic Engineering and Biotechnology · IRNourDanesh Institute of Higher EducationUniversity of Sistan and Baluchestan · IRShahid Beheshti University of Medical Sciences · IRUniversiti Putra Malaysia · MYUniversity of Malaya · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polymorphisms in the cytochrome P (CYP) 450 family may cause adverse drug responses in individuals. Cytochrome P450 2C19 (CYP2C19) is a member of the CYP family, where the presence of the 681 G>A, 636 G>A and 806 C>T polymorphisms result in the CYP2C19*2, CYP2C19*3 and CYP2C19*17 alleles, respectively. In the current study, the frequency of the CYP2C19*2, CYP2C19*3 and CYP2C19*17 alleles in an Iranian population cohort of different ethnicities were examined and then compared with previously published frequencies within other populations. Allelic and genotypic frequencies of the CYP2C19 alleles (*2, *3 and *17) were detected using polymerase chain reaction (PCR)‑restriction fragment length polymorphism analysis, PCR‑single‑strand conformation polymorphism analysis and DNA sequencing from blood samples of 1,229 unrelated healthy individuals from different ethnicities within the Iranian population. The CYP2C19 allele frequencies among the Iranian population were 21.4, 1.7, and 27.1% for the CYP2C19*2, CYP2C19*3 and CYP2C19*17 alleles, respectively. The frequency of the homozygous A/A variant of the CYP2C19*2 allele was significantly high and low in the Lur (P<0.001) and Caspian (P<0.001) ethnicities, respectively. However, the frequency of the homozygous A/A variant of the CYP2C19*3 allele was not detected in the Iranian cohort in the current study. The frequency of the heterozygous G/A variant of the CYP2C19*3 allele had the significantly highest and lowest frequency in the Fars (P<0.001) and Lur (P<0.001) groups, respectively. The allele frequency of the homozygous T/T variant of the CYP2C19*17 allele was significantly high in the Caspian (P<0.001) and low in the Kurd (P<0.05) groups. The frequency of the CYP2C19 alleles involved in drug metabolism, may improve the clinical understanding of the ethnic differences in drug responses, resulting in the advancement of the personalized medicine among the different ethnicities within the Iranian population.

Indexed as

AllelesGenetics, PopulationGenotypePolymorphism, GeneticBase SequenceCytochrome P-450 CYP2C19EthnicityExonsGene ExpressionGene FrequencyHumansIranIsoenzymesPolymorphism, Restriction Fragment LengthPromoter Regions, GeneticSequence Analysis, DNACYP2C19 protein, humanCytochrome P-450 CYP2C19IsoenzymesCaspianCYP2C19CYP2C19*3 alleleFarsIranian populationsKurdLurTurk

Identifiers

PMID29328413
PMCPMC5802190
OpenAlexW2782162836

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

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.