Document Detail

Screening for G71R mutation of the UDP-glucuronosyltransferase 1 (UGT1A1) gene in neonates with pathologic and prolonged hyperbilirubinemia in Turkey.
MedLine Citation:
PMID:  20650040     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Whether the G71R mutation contributes to the high incidence of neonatal indirect hyperbilirubinemia in Turkey remains unknown. In this study we screened for G71R mutation of the UGT1A1 gene in prolonged and pathological hyperbilirubinemia with unexplained etiology in newborns in Turkey.
METHOD: In this study, we screened the G71R mutation of the UGT1A1 gene in 70 Turkish newborn infants: 23 infants with pathologic hyperbilirubinemia, 24 infants with prolonged hyperbilirubinemia and 23 infants without pathologic and prolonged hyperbilirubinemia. Mutations were detected by non-radioactive dye terminator cycle sequencing.
RESULTS: In these seventy infants enrolled in this study, there were 62 with G/G (88.5 %), 8 with G/R (11.5%), and none with R/R. Two (8.7%) infants in the pathologic jaundice group and 5 (20.8 %) infants in the prolonged indirect hyperbilirubinemia, one (4.3%) infant in the control group had G/R genotype. Although G/R mutation is higher in the prolonged indirect hyperbilirubinemia group, genotypic distributions among the three groups were not statistically significant. The allele frequency of the G71R mutation was found 4.3%, 10.4%, and 2.2% in the pathologic jaundice group, in the prolonged indirect hyperbilirubinemia group, and in the control group respectively. When we compared the peak serum total bilirubin concentrations of neonates according to their genotypes, the peak bilirubin concentration was higher in G/R genotype than G/G genotype.
CONCLUSIONS: G71R mutation of UGT1A1 gene is also present in Turkish population and the presence of this mutation is associated with otherwise unexplained pathological or prolonged neonatal hyperbilirubinemia in a Turkish population.
I Kilic; A Koseler; I Cakaloz; E Atalay
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of clinical pharmacology and therapeutics     Volume:  48     ISSN:  0946-1965     ISO Abbreviation:  Int J Clin Pharmacol Ther     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-23     Completed Date:  2010-09-02     Revised Date:  2014-03-28    
Medline Journal Info:
Nlm Unique ID:  9423309     Medline TA:  Int J Clin Pharmacol Ther     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  504-8     Citation Subset:  IM    
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MeSH Terms
Bilirubin / blood*
Follow-Up Studies
Genetic Testing
Glucuronosyltransferase / genetics*
Hyperbilirubinemia, Neonatal / genetics*
Infant, Newborn
Turkey / epidemiology
Reg. No./Substance:
EC 2.4.1.-/UGT1A1 enzyme; EC; RFM9X3LJ49/Bilirubin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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