KCNJ11 Lys23Glu and TCF7L2 rs290487(C/T) polymorphisms affect therapeutic efficacy of repaglinide in Chinese patients with type 2 diabetes.
Clin Pharmacol Ther
; 87(3): 330-5, 2010 Mar.
Article
in En
| MEDLINE
| ID: mdl-20054294
ABSTRACT
This study showed that the polymorphisms KCNJ11 Lys23Glu and TCF7L2 rs290487(C/T) are associated with a heightened risk of developing type 2 diabetes mellitus (T2DM). We also explored the effects of these polymorphisms on the efficacy of repaglinide therapy in Chinese patients with T2DM. A total of 259 patients with T2DM and 188 healthy controls were genotyped. Forty patients with various genotypes were randomly selected to undergo an 8-week repaglinide treatment regimen. Patients with the G allele of the KCNJ11 Lys23Glu polymorphism showed higher levels of fasting plasma glucose (FPG) and postprandial plasma glucose (PPG) (P < 0.05). After repaglinide treatment, patients with the GA or AA genotype showed higher levels of FPG, PPG, and glycated hemoglobin (HbA(1c)) compared with patients with the GG genotype (P < 0.05). Patients with the C allele of TCF7L2 rs290487(C/T) had higher total cholesterol levels and lower body mass index (BMI) (P < 0.05). In patients with the TT genotype, the drug showed better efficacy with respect to levels of fasting insulin, triglycerides, and low-density lipoprotein cholesterol (LDL-c) than in patients with the CC or CT genotype (P < 0.05). The KCNJ11 and TCF7L2 polymorphisms were associated with repaglinide efficacy.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Piperidines
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Polymorphism, Genetic
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Carbamates
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Glutamic Acid
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Potassium Channels, Inwardly Rectifying
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Asian People
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Diabetes Mellitus, Type 2
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TCF Transcription Factors
/
Lysine
Type of study:
Clinical_trials
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Etiology_studies
/
Risk_factors_studies
Limits:
Adult
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Female
/
Humans
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Male
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Middle aged
Language:
En
Journal:
Clin Pharmacol Ther
Year:
2010
Document type:
Article