Evidence map›Paper›PMID 27617219›Full record

ReviewMeta gene2016

Impact of CYP2C9, VKORC1 and CYP4F2 genetic polymorphisms on maintenance warfarin dosage in Han-Chinese patients: A systematic review and meta-analysis.

Jinhua Zhang, Zhijie Chen, Chunmei Chen

Open access · greenAbstract readReview
In one paragraph

Review in Meta gene, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
5.1field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Observational
  5. Article
  6. Article
  7. Clinical significance of the series ofFrontiers in cardiovascular medicine · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. The Impact of Gene Polymorphisms on Anticoagulation Control With Warfarin.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis · 2018
    Article
  12. 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 2 institutions in 1 country.

Jinhua ZhangDepartment of Pharmacy, Fujian Medical University Union Hospital, Fuzhou 350001, PR China.
Zhijie ChenDepartment of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou 350001, PR China.
Chunmei ChenDepartment of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou 350001, PR China.
Union Hospital · CNFujian Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWarfarin is the most commonly used antithrombotic drug. Single nucleotide polymorphisms (SNPs) of CYP2C9, CYP4F2, VKORC1 1173 and VKORC1-1639 influence warfarin maintenance dosage. We aimed to determine the impact of SNPs of these genes on mean daily warfarin dosage (MDWD) in Han-Chinese patients.

methodsStrict literature inclusion criteria were established, and literature searching was performed on PubMed, Embase and Cochrane Library for English articles and CNKI, CBM and Wanfang database for Chinese articles before September 2, 2014. Revman 5.3 was used to analyze the relationship between gene SNPs and MDWD in Han-Chinese subjects.

resultsWe included 33 studies researching the impact of gene SNPs on MDWD in Han-Chinese subjects. CYP2C9 *3/*3, *1/*3 and *3 carriers needed a 72% (95% confidence interval [CI]: 62.0%-81.0%), 28% (22.0%-33.0%) and 26% (21.0%-32.0%) lower MDWD, respectively, than CYP2C9 *1/*1 carriers. CYP4F2 TT, CT and T carriers required a 18% (7.0%-30.0%), 7% (7.0%-7.0%) and 11% (7.0%-14.0%) higher MDWD, respectively, than CYP4F2 CC carriers. VKORC1 1173 CC, CT and C carriers required a 98% (78.0%-118.0%), 49% (37.0%-62.0%) and 56% (44.0%-67.0%) higher MDWD, respectively, than VKORC1 1173 TT carriers. VKORC1-1639 GG, GA and G carriers needed a 101% (53.0%-149.0%), 40% (36.0%-45.0%) and 38% (35.0%-42.0%) higher MDWD, respectively, than VKORC1-1639 AA carriers.

conclusionsThis meta-analysis is the first to report the relationship between genotypes and MDWD among Han-Chinese patients. The results showed that SNPs of CYP2C9, CYP4F2, VKORC1 1173 and VKORC1-1639 significantly influenced the MDWD in Han-Chinese patients.

Indexed as

AF, Atrial FibrillationAVR, Atrial Valve ReplacementCI, Confidence IntervalCYP2C9CYP2C9, Cytochrome P450 Complex Subunit 2C9CYP4F2, Cytochrome P450 Complex Subunit 4F2DVT, Deep Vein ThrombosisHan-ChineseHVR, Heart Valve ReplacementINR, International Normalized RatioMD, Mean DifferenceMDWD, Mean Daily Warfarin DoseMeta-analysisMHVR, Mechanical Heart Valve ReplacementMVR, Mitral Valve ReplacementNVAF, Non Valvular Atrial FibrillationPE, Pulmonary EmbolismRHD, Rheumatic Heart DiseaseSD, Standard DeviationSNPs, Single Nucleotide PolymorphismsVKORC1VKORC1, Vitamin K Epoxide Reductase Complex Subunit 1VTE, Venous ThromboembolismWarfarin

Identifiers

PMID27617219
PMCPMC5006145
OpenAlexW2465758986

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.