Blood group serology and gene detection in patients with B(A) subgroup in Jiaozhou, Qingdao
Journal Title: Chinese Journal of Blood Transfusion - Year 2024, Vol 37, Issue 3
Abstract
Objective To investigate and analyze the serological and molecular biological characteristics of B(A) subgroup in a tertiary hospital in Jiaozhou, Qingdao. Methods From November 2019 to February 2023, the samples of 12 patients were suspected to be AB subgroup by microcolumn glass bead method and saline test tube method. The exons 6 and 7 of ABO gene were further amplified, sequenced and analyzed to determine the ABO allele type. Results A total of 9 cases of B(A) subgroup were detected in 26 065 patients in Jiaozhou, with a detection rate of 0.345 ‰ ( 9/26 065 ). Among the 9 cases of B(A) subgroup, 8 cases of serological reaction showed AweakB, and the gene detection was heterozygous for BA.04 gene and O gene.One case of serological reaction showed ABweak, and the gene detection was heterozygous for BA.04 gene and A gene. Conclusion Blood group serological combined with gene detection can accurately identify ABO blood group. B(A) subgroup alleles can exist in individuals with serological reaction of ABweak.
Authors and Affiliations
Hongwei QIN, Xiaoxia WANG, Ruilan YIN, Shuchao ZHANG
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