Genotyping of Human Platelet Antigens by BeadChip Microarray Technology
2015
: Human platelet antigen (HPA) typing plays a critical role in the diagnosis of fetal/neonatal alloimmune thrombocytopenia, and the prevention of posttransfusion purpura and refractoriness to platelet transfusions. The recent development of high-throughput genotyping methods, allowing simultaneous genotyping of as many as 17 HPAs, is of utmost interest for saving time and money. Here, we describe a microarray technology named "BeadChip," designed for HPA-1 to -9, -11, and -15 genotyping of up to 96 individuals, in approximately 5 h. This technology was used to study allele frequencies in Brazilian blood donors, considering the heterogeneous ethnic composition.
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