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  • Title: Relationship between glycoprotein IIIa platelet receptor gene polymorphism and coronary artery disease.
    Author: Verdoia M, Cassetti E, Schaffer A, Barbieri L, Giovine GD, Nardin M, Marino P, Sinigaglia F, Luca GD, Novara Atherosclerosis Study Group (NAS).
    Journal: Angiology; 2015 Jan; 66(1):79-85. PubMed ID: 24586027.
    Abstract:
    Glycoprotein IIb/IIIa (GP IIb/IIIa) is a key receptor for platelet aggregation and adhesion. We investigated whether a single-nucleotide polymorphism of GP IIIa subunit (Leu33Pro-PlA(1)/PlA(2) allele) is associated with the extent of coronary artery disease (CAD) in a consecutive cohort of 1518 patients undergoing coronary angiography. Significant CAD was defined as at least a stenosis >50% and severe CAD as left main disease and/or trivessel disease. Additionally, carotid intima-media thickness (cIMT) was evaluated in 339 patients. The PlA(2) allele was observed in 458 (30.2%) patients and associated with hypercholesterolemia (P = .03). No difference was observed in the prevalence of CAD (72.6% vs 70.1%, P = .29; adjusted odds ratio, OR [95% confidence interval, CI] = 0.85 [0.67-1.08], P = .19) and severe CAD (27.5% vs 26.5%, adjusted OR [95% CI] = 0.93 [0.72-1.19], P = .55). Furthermore, Leu33Pro polymorphism did not affect cIMT and the prevalence of carotid plaques. Therefore, this polymorphism cannot be regarded as a risk factor for coronary or carotid atherosclerosis.
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