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Platelet Receptor HPA-1 Polymorphism of _IIbß₃ and 807 C/T Polymorphism of ₂ß₁ and Buerger's Disease

Medical Faculty and University Clinic Mostar, Bijeli Brijeg BB, Mostar, Bosnia-Hercegovina, ljerka.ostojic{at}sve-mo.ba

D. Zelenika, MD

Medical Faculty and University Clinic Mostar, Bijeli Brijeg BB, Mostar, Bosnia-Hercegovina

R.B. Zotz, MD, PhD

Institut für Hämostaseologie und Transfusionsmedizin, Heinrich-Heine-Universität, Düsseldorf, Germany

C. Sucker, MD

Institut für Hämostaseologie und Transfusionsmedizin, Heinrich-Heine-Universität, Düsseldorf, Germany

Z. Ostojic, MD, PhD

Medical Faculty and University Clinic Mostar, Bijeli Brijeg BB, Mostar, Bosnia-Hercegovina

R. Loncar, MD

Institut für Hämostaseologie und Transfusionsmedizin, Heinrich-Heine-Universität, Düsseldorf, Germany

Thromboangiitis obliterans or Buerger's disease is an episodic and segmental inflammatory and thrombotic process of the medium and small arteries of the lower extremities. Even though the disease was described 90 years ago, the etiopathogenesis is still under consideration. Afflicted patients are mostly young male cigarette smokers without signs of atherosclerosis or other risk factors for peripheral arterial occlusive disease. This indicates that hereditary thrombophilic factors could play a role in the etiopathogenesis. Recently, increasing evidence shows that platelet receptor polymorphisms (HPA-1 polymorphism of ß3 subunit of IIbß3 and 807 C/T polymorphism 2ß1) are associated with early onset of arterial thrombosis (myocardial infarction, stroke). This case-control study was designed to assess whether the 807 C/T polymorphism or the HPA-1 polymorphism is involved in the pathogenesis of Buerger's disease or has any influence on the clinical course of Buerger's disease. Eighteen patients with Buerger's disease and 81 (sex and age matched) healthy control subjects (mean age 44 ± 10 vs 45 8 years, respectively) were genotyped for platelet receptor HPA-1 and GPIa 807 C/T polymorphism. The gene frequency of HPA-1 and GPIa 807 C/T polymorphisms was identical in both groups. Prevalence of hetero- and homozygous carriers of the HPA-1b allel (1a1b and 1b1b genotype) as well as the prevalence of the 807 C/T and 807 T/T carriers did not differ significantly between the two groups, p >0.05. The grade of clinical disease manifestation as well as disease progression did not reveal any significant relationship with HPA-1 and 807 C/T polymorphisms. A relationship between the age at onset of the disease and HPA-1 polymorphism was not found. Otherwise analysis of the GPIa 807 C/T platelet receptor polymorphism showed that the average age of patients who are carriers of the T allele at early onset of disease was 32 ± 6 years (range 27—48 years) compared to 42 ± 6 years (range 34—53 years) of the C/C carriers (p <0.05). This indicates that the GPIa 807 C/T polymorphism does not represent a risk factor for Buerger's disease itself, but could be associated with premature onset of this disorder in predisposed individuals.

Angiology, Vol. 58, No. 2, 169-174 (2007)
DOI: 10.1177/0003319707300352


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