期刊
BLOOD COAGULATION & FIBRINOLYSIS
卷 24, 期 1, 页码 35-39出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MBC.0b013e328359bc3b
关键词
childhood; Fc gamma receptors; Fc gamma RIIa; Fc gamma RIIIa; immune thrombocytopenia; polymorphisms
类别
Primary immune thrombocytopenia (ITP) is the commonest acquired cause of bleeding in childhood. The aim of the present study was to evaluate the role of Fc gamma RIIa and Fc gamma RIIIa polymorphisms in the pathogenesis and therapeutic result of childhood ITP. The genotypic frequencies for two Fc gamma receptor single-nucleotide polymorphisms, Fc gamma RIIa-131 arginine (R) versus histidine (H) and Fc gamma RIIIa-158 valine (V) versus phenylalanine (F) were examined in 53 children diagnosed with ITP. The genotype frequencies were compared with those of 45 healthy controls. The association between the above frequencies and disease natural course as well as therapeutic result following intravenous immunoglobulin (IVIG) administration was investigated. Fc gamma RIIIa-158V was significantly overrepresented in children with ITP versus controls (P=0.029), whereas no statistically significant difference was noted in Fc gamma RIIa polymorphism distribution. No statistically significant difference was noted in the above genotype frequencies' distribution between children with newly diagnosed and chronic ITP, as well as with regards to the therapeutic result following IVIG administration. High-affinity Fc gamma RIIIa variant (158 V) is possibly implicated in disease susceptibility, but neither of the two Fc gamma receptor single-nucleotide polymorphisms seem to have any impact on chronicity or therapeutic effect of IVIG. Blood Coagul Fibrinolysis 24:35-39 (C) 2012 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.
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