title: Human platelet alloantigens HPA-1, HPA-2, and HPA-3 polymorphisms associated with extent of severe coronary artery disease.
abstract: The contribution of human platelet antigen (HPA)-1 (GPIIb/IIIa), HPA-2 (GPIb/IX), and HPA-3 (GPIIb/IIIa) polymorphisms to the risk of coronary artery disease (CAD) was investigated in 341 CAD patients and 316 matched control subjects. HPA genotyping was performed by PCR-SSP. Regression analysis was employed in assessing the contribution of these variants to CAD risk. The frequency of HPA-1b (P = .009) and HPA-3b (P = .004) alleles, and HPA-1a/1b (P = .045), HPA-1b/1b (P = .007), and HPA-3b/3b (P = .008) genotypes were higher in patients than control subjects. No significant association was demonstrated between the HPA variants and 1-, 2- and 3-vessel disease. HPA-1b/2a/3b (Pc = .021) and HPA-1b/2b/3a (Pc = .002) haplotypes were positively associated with CAD, thereby conferring a disease susceptibility nature to these haplotypes. Multivariate analysis confirmed the positive association of HPA-1b/2a/3b (aOR = 3.72; 95% CI = 1.49-9.28), and in addition identified HPA-1b/2a/3a (aOR = 2.49; 95% CI = 1.06-5.86) to be positively associated with CAD, after adjusting for a number of covariates. Our results demonstrate positive association of HPA variants and specific HPA-1/HPA-2/HPA-3 haplotypes with CAD in Tunisians.
authors: Research unit of Hematological and Autoimmune Diseases, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia.
authors: Nesrine
authors: N
authors: Abboud
authors: Lakdhar
authors: L
authors: Ghazouani
authors: Sonia
authors: S
authors: Ben-Hadj-Khalifa
authors: Fatma
authors: F
authors: Anabi
authors: Faouzi
authors: F
authors: Added
authors: Ali
authors: A
authors: Khalfallah
authors: Brahim
authors: B
authors: Nsiri
authors: Wassim Y
authors: WY
authors: Almawi
authors: Touhami
authors: T
authors: Mahjoub
mesh_terms: D000368:Aged; D016824:Antigens, Human Platelet / Q000235:genetics*; D003324:Coronary Artery Disease / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease; D006239:Haplotypes; D006801:Humans; D008297:Male; D008875:Middle Aged; D018807:Polymorphism, Single-Stranded Conformational; D012189:Retrospective Studies; D012307:Risk Factors
chemical_list: D016824:Antigens, Human Platelet