Genetic analysis of weak expression of ABO blood group antigens in neonates

[Objective] To perform genetic analysis on samples with weak agglutination and mixed agglutination of ABO blood group antigens in neonates, and to investigate the molecular biological characteristics of ABO subtypes in neonates. [Methods] Serological identification of ABO blood group was performed b...

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Main Authors: YANG Jiali, ZHAO Ding, LI Wei, ZHANG Xiaopan, LI Zhihao, TIAN Dongdong
Format: Article
Language:zho
Published: Institute of Blood Transfusion of Chinese Academy of Medical Sciences 2025-01-01
Series:Zhongguo shuxue zazhi
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Online Access:https://www.cjbt.cn/thesisDetails#10.13303/j.cjbt.issn.1004-549x.2025.01.014&lang=en
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author YANG Jiali
ZHAO Ding
LI Wei
ZHANG Xiaopan
LI Zhihao
TIAN Dongdong
author_facet YANG Jiali
ZHAO Ding
LI Wei
ZHANG Xiaopan
LI Zhihao
TIAN Dongdong
author_sort YANG Jiali
collection DOAJ
description [Objective] To perform genetic analysis on samples with weak agglutination and mixed agglutination of ABO blood group antigens in neonates, and to investigate the molecular biological characteristics of ABO subtypes in neonates. [Methods] Serological identification of ABO blood group was performed by tube method and microcolumn gel method. The ABO exons 2-7 were amplified by PCR, and the amplified products were sequenced by Sanger sequencing method to determine the genotype. [Results] Among the ABO blood group serological results of 14 neonates, 8 cases showed weakened A antigen, and 6 cases showed weakened B antigen. Seven samples were identified with ABO subtype alleles, with genotypes as A102/B101+c.538C>T, Aw26/B102, A205/O02, A205/B101(2 cases), Aw26/O02, B(A)06/O01, B101/O01(3 cases), A102/O01(2 cases), A102/B101 and B101/O02. Additionally, three other family members were also found to carry B(A)06 allele in a pedigree investigation. [Conclusion] For samples showing weakened antigens in ABO blood type identification of neonates, it is necessary to consider the possibility of ABO subtype in addition to age factors, and genetic testing can be used to prevent missed detection of ABO subtypes in neonates.
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language zho
publishDate 2025-01-01
publisher Institute of Blood Transfusion of Chinese Academy of Medical Sciences
record_format Article
series Zhongguo shuxue zazhi
spelling doaj-art-9eea6ad76c0742c4b167498219a913232025-01-27T01:46:11ZzhoInstitute of Blood Transfusion of Chinese Academy of Medical SciencesZhongguo shuxue zazhi1004-549X2025-01-01381859010.13303/j.cjbt.issn.1004-549x.2025.01.0141004-549X(2025)1-0085-07Genetic analysis of weak expression of ABO blood group antigens in neonatesYANG Jiali0ZHAO Ding1LI Wei2ZHANG Xiaopan3LI Zhihao4TIAN Dongdong5Department of Blood Transfusion, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou 450018, ChinaDepartment of Blood Transfusion, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou 450018, ChinaDepartment of Blood Transfusion, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou 450018, ChinaDepartment of Blood Transfusion, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou 450018, ChinaDepartment of Blood Transfusion, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou 450018, ChinaDepartment of Blood Transfusion, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou 450018, China[Objective] To perform genetic analysis on samples with weak agglutination and mixed agglutination of ABO blood group antigens in neonates, and to investigate the molecular biological characteristics of ABO subtypes in neonates. [Methods] Serological identification of ABO blood group was performed by tube method and microcolumn gel method. The ABO exons 2-7 were amplified by PCR, and the amplified products were sequenced by Sanger sequencing method to determine the genotype. [Results] Among the ABO blood group serological results of 14 neonates, 8 cases showed weakened A antigen, and 6 cases showed weakened B antigen. Seven samples were identified with ABO subtype alleles, with genotypes as A102/B101+c.538C>T, Aw26/B102, A205/O02, A205/B101(2 cases), Aw26/O02, B(A)06/O01, B101/O01(3 cases), A102/O01(2 cases), A102/B101 and B101/O02. Additionally, three other family members were also found to carry B(A)06 allele in a pedigree investigation. [Conclusion] For samples showing weakened antigens in ABO blood type identification of neonates, it is necessary to consider the possibility of ABO subtype in addition to age factors, and genetic testing can be used to prevent missed detection of ABO subtypes in neonates.https://www.cjbt.cn/thesisDetails#10.13303/j.cjbt.issn.1004-549x.2025.01.014&lang=enneonateabo blood groupweak expression of antigenabo subtypegene sequencing
spellingShingle YANG Jiali
ZHAO Ding
LI Wei
ZHANG Xiaopan
LI Zhihao
TIAN Dongdong
Genetic analysis of weak expression of ABO blood group antigens in neonates
Zhongguo shuxue zazhi
neonate
abo blood group
weak expression of antigen
abo subtype
gene sequencing
title Genetic analysis of weak expression of ABO blood group antigens in neonates
title_full Genetic analysis of weak expression of ABO blood group antigens in neonates
title_fullStr Genetic analysis of weak expression of ABO blood group antigens in neonates
title_full_unstemmed Genetic analysis of weak expression of ABO blood group antigens in neonates
title_short Genetic analysis of weak expression of ABO blood group antigens in neonates
title_sort genetic analysis of weak expression of abo blood group antigens in neonates
topic neonate
abo blood group
weak expression of antigen
abo subtype
gene sequencing
url https://www.cjbt.cn/thesisDetails#10.13303/j.cjbt.issn.1004-549x.2025.01.014&lang=en
work_keys_str_mv AT yangjiali geneticanalysisofweakexpressionofabobloodgroupantigensinneonates
AT zhaoding geneticanalysisofweakexpressionofabobloodgroupantigensinneonates
AT liwei geneticanalysisofweakexpressionofabobloodgroupantigensinneonates
AT zhangxiaopan geneticanalysisofweakexpressionofabobloodgroupantigensinneonates
AT lizhihao geneticanalysisofweakexpressionofabobloodgroupantigensinneonates
AT tiandongdong geneticanalysisofweakexpressionofabobloodgroupantigensinneonates