Genetic Polymorphisms of UGT1A and their Association with Clinical Factors in Healthy Koreans
Genomics & Informatics
;
: 161-167, 2007.
Artículo
en Inglés
| WPRIM
| ID: wpr-21119
ABSTRACT
Glucuronidation by the uridine diphosphateglucuronosyltransferase 1A enzymes (UGT1As) is a major pathway for elimination of particular drugs and endogenous substances, such as bilirubin. We examined the relation of eight single nucleotide polymorphisms (SNPs) and haplotypes of the UGT1A gene with their clinical factors. For association analysis, we genotyped the variants by direct sequencing analysis and polymerase chain reaction (PCR) in 218 healthy Koreans. The frequency of UGT1A1 polymorphisms, -3279T>G, -3156G>A, -53 (TA)(6>7), 211G>A, and 686C>A, was 0.26, 0.12, 0.08, 0.15, and 0.01, respectively. The frequency of -118 (T)9>10 of UGT1A9 was 0.62, which was significantly higher than that in Caucasians (0.39). Neither the -2152C>T nor the -275T>A polymorphism was observed in Koreans or other Asians in comparison with Caucasians. The -3156G>A and -53 (TA)6>7 polymorphisms of UGT1A were significantly associated with platelet count and total bilirubin level (p=0.01, p=0.01, respectively). Additionally, total bilirubin level was positively correlated with occurrence of the UGT1A9-118 (T)(9>10) rare variant. Common haplotypes encompassing six UGT1A polymorphisms were significantly associated with total bilirubin level (p=0.01). Taken together, we suggest that determination of the UGT1A1 and UGT1A9 genotypes is clinically useful for predicting the efficacy and serious toxicities of particular drugs requiring glucuronidation.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Recuento de Plaquetas
/
Polimorfismo Genético
/
Uridina
/
Bilirrubina
/
Haplotipos
/
Reacción en Cadena de la Polimerasa
/
Polimorfismo de Nucleótido Simple
/
Pueblo Asiatico
/
Genotipo
Tipo de estudio:
Estudio pronóstico
Límite:
Humanos
Idioma:
Inglés
Revista:
Genomics & Informatics
Año:
2007
Tipo del documento:
Artículo
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