Oncotarget

Research Papers:

Interaction among CYP2C8, GPIIIa and P2Y12 variants increase susceptibility to ischemic stroke in Chinese population

Xingyang Yi, Jing Lin _, Yanfen Wang, Ju Zhou and Qiang Zhou

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Oncotarget. 2017; 8:70811-70820. https://doi.org/10.18632/oncotarget.19991

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Abstract

Xingyang Yi1, Jing Lin2, Yanfen Wang1, Ju Zhou1 and Qiang Zhou2

1Department of Neurology, People’s Hospital of Deyang City, Deyang 618000, Sichuan, China

2Department of Neurology, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, Zhejiang, China

Correspondence to:

Jing Lin, email: [email protected]

Keywords: ischemic stroke, genetic polymorphism, cytochrome P450, platelet membrane receptor, glycoprotein IIIa

Received: June 12, 2017    Accepted: July 13, 2017    Published: August 07, 2017

ABSTRACT

Purpose: Genetic variants in cytochrome P450 (CYP), platelet membrane receptor (P2Y12, P2Y1), and glycoprotein IIIa (GPIIIa) genes are associated with the efficacy of clopidogrel and adverse clinical events on ischemic stroke (IS) patients. However, few studies have assessed whether gene-gene interactions among these genes influence the risk of IS. The aim of the present study was to investigate the association of fifteen variants with IS and to determine whether these gene-gene interactions increase the risk of IS.

Methods: Fifteen variants in CYP3A4, CYP3A5, CYP2C8, CYP2C9, CYP2C19, P2Y12, P2Y1 and GPIIIa genes were examined using mass spectrometry methods in 396 patients with IS and 378 controls. Gene-gene interactions were analyzed using generalized multifactor dimensionality reduction (GMDR) methods.

Results: Single-gene variant analysis showed no significant differences in the genotype distributions of the fifteen variants between IS patients and controls using the single-locus analytical approach. However, GMDR analysis showed a significant gene-gene interaction among rs17110453A>C, rs2317676A>G, and rs16863323C>T, which scored 10 for cross-validation consistency and 9 for the sign test (P = 0.016). Logistic regression analysis showed that high-risk interactions among rs17110453A>C, rs2317676A>G, and rs16863323C>T were independent risk factor for IS after adjusting for age, hypertension, diabetes mellitus, and hemoglobin A1C (OR=2.24, 95% CI: 1.17–5.62, P=0.005).

Conclusions: The rs17110453A>C, rs2317676A>G, and rs16863323C>T three-loci interaction may confer a higher risk for IS. The combinatorial analysis used in this study may be helpful to elucidate complex genetic risk factors for IS.


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