RGD Reference Report - Relationship between ABCB1 polymorphisms, thromboelastography and risk of bleeding events in clopidogrel-treated patients with ST-elevation myocardial infarction. - Rat Genome Database

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Relationship between ABCB1 polymorphisms, thromboelastography and risk of bleeding events in clopidogrel-treated patients with ST-elevation myocardial infarction.

Authors: Zhang, Jia-Hui  Tang, Xiao-Fang  Zhang, Yin  Wang, Jing  Yao, Yi  Ma, Yuan-Liang  Xu, Bo  Gao, Run-Lin  Gao, Zhan  Chen, Jue  Song, Lei  Wu, Yuan  Meng, Xian-Min  Yuan, Jin-Qing 
Citation: Zhang JH, etal., Thromb Res. 2014 Nov;134(5):970-5. doi: 10.1016/j.thromres.2014.08.017. Epub 2014 Aug 29.
RGD ID: 14700903
Pubmed: PMID:25217066   (View Abstract at PubMed)
DOI: DOI:10.1016/j.thromres.2014.08.017   (Journal Full-text)


INTRODUCTION: This study sought to investigate the relationship of polymorphisms in ABCB1 and the predictive value of thromboelastography (TEG) on bleeding risk in clopidogrel-treated patients with ST-elevation myocardial infarction (STEMI).
METHODS: 467 consecutive patients with STEMI undergoing percutaneous coronary intervention (PCI) were enrolled. Twenty tag single nucleotide polymorphisms (SNPs) selected from ABCB1 gene and CYP2C19*2, *3, *17 were detected by the ligase detection reaction. Platelet reactivity was assessed by TEG. The follow-up period was 12months.
RESULTS: By receiver operating characteristic curve analysis, the TEG platelet mapping assay value of ADP inhibition had the best predictive value of bleeding academic research consortium definition (BARC) >= 3b bleedings, yielding an area under the curve (AUC) of 0.707 (95% CI 0.662-0.749, p=0.009; cut-off value > 93.4%). ADP inhibition can also predict BARC >= 3 bleedings with an AUC of 0.594 (95% CI 0.546-0.640, p = 0.05; cut-off value > 92.5%). After adjustment for established risk factors of bleeding including the gain of function CYP2C19*17 allele, age, female gender, renal function, the multivariable logistic regression model demonstrated that ADP inhibition > 92.5% (OR 2.247, 95%CI 1.082-4.665, P=0.03), carriage of rs1045642 (OR 2.943, 95%CI 1.195-7.247, P = 0.019) and rs7779562 (OR 0.453, 95%CI 0.219-0.936, P = 0.032) were independent predictors of BARC >= 3 bleedings. These associations were validated in a second cohort of 504 STEMI patients.
CONCLUSIONS: In STEMI patients treated with clopidogrel after PCI, the ABCB1 tag SNP rs1045642 is associated with higher risk of bleedings while rs7779562 is associated with lower bleeding risk, and ADP inhibition in TEG has a predictive value of bleedings.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
ABCB1HumanST Elevation Myocardial Infarction treatmentIAGP DNA:SNPs: :rs1045642 and rs7779562(human)RGD 
Abcb1aRatST Elevation Myocardial Infarction treatmentISOABCB1 (Homo sapiens)DNA:SNPs: :rs1045642 and rs7779562(human)RGD 
Abcb1aMouseST Elevation Myocardial Infarction treatmentISOABCB1 (Homo sapiens)DNA:SNPs: :rs1045642 and rs7779562(human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Abcb1a  (ATP binding cassette subfamily B member 1A)

Genes (Mus musculus)
Abcb1a  (ATP-binding cassette, sub-family B member 1A)

Genes (Homo sapiens)
ABCB1  (ATP binding cassette subfamily B member 1)


Additional Information