Abstract
The aim of this study was to evaluate the genetic variability of selected single nucleotide polymorphisms (SNPs) within GAS6 and PEAR1 genes and explore the association between selected SNPs and risk for fetal loss in women with sticky platelet syndrome (SPS). We examined 23 female patients with SPS and history of spontaneous abortion, and 42 healthy women who served as controls. The diagnosis of SPS was established by light transmission aggregometry according to methods and criteria developed by Mammen et al. We also assessed four SNPs within the GAS6 gene (rs7400002, rs1803628, rs8191974, rs9550270) and two SNPs within PEAR1 gene (rs12041331, rs12566888). We identified two SNPs within PEAR1 gene (rs12041331, rs12566888) and one SNP within GAS6 gene (rs9550270) that have higher occurrence in SPS patients with history of abortion. An increased risk for abortion was observed in carriers of the rs7400002 within GAS6 gene. Conversely, we found that the T allele of PEAR1 c. -9-4663G > T polymorphism appears to be protective for fetal loss. Our results support the idea that genetic variability of GAS6 and PEAR1 genes may be associated with platelet hyperaggregability. The study also suggests a possible polygenic type of SPS heredity.
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