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Genetic polymorphisms in Thai neonates with hyperbilirubinemia
Author(s) -
Prachukthum Sariya,
Nunnarumit Pracha,
Pienvichit Paneeya,
Chuansumrit Ampaiwan,
Songdej Daunthida,
Kajanachumpol Saowanee,
Pakakasama Samart,
Hongeng Suradej
Publication year - 2009
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.2009.01275.x
Subject(s) - medicine , abo blood group system , gene , odds ratio , slco1b1 , single nucleotide polymorphism , gastroenterology , endocrinology , genetics , genotype , biology
Aim: Polymorphisms of the UGT1A1 gene, SLCO1B1 gene and GST gene have been associated with significant hyperbilirubinemia. We would like to determine whether the variation of UGT1A1 gene, SLCO1B1 gene and GST gene may play a significant role in neonatal hyperbilirubinemia in Thai infants. Methods: Ninety‐one study subjects (hyperbilirubinemic group) and 86 control subjects were studied. Results: The cause of neonatal hyperbilirubinemia could not be identified in 64 infants (70.3%), ABO blood group incompatibility in 14.3% and Glucose‐6‐phosphate dehydrogenase (G‐6‐PD) deficiency in 8.8%. In the hyperbilirubinemic group, 23 of 91 (25.3%) infants demonstrated variant of UGT1A1 at nucleotides (nt) 211 as compared to 6 of 86 (7%) in the control group (p = 0.001). There were no significant differences between groups in the variants UGT1A1 at nt 686, SLCO1B1 gene at nt 388, 463 and the GST gene. Male infants with G‐6‐PD deficiency were associated with hyperbilirubinemia (21.2% vs. 4.8% in the control group) with an odds ratio (OR) of 5.37 (p =0.02). The relationship between G‐6‐PD and variant in UGT1A1 gene at nt 211 could not be determined. Conclusion: Thai infants with variant in the UGT1A1 at nt 211 or with G‐6‐PD deficiency are at higher risk for developing neonatal hyperbilirubinemia.