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Association of the MDR1 3435 Polymorphism in Patients with Refractory Rheumatoid Arthritis in a Chinese Han Population
Author: ChenLiXiao
Tutor: ChenJinWei
School: Central South University
Course: Division of Rheumatology
Keywords: MDR1 P-glycoprotein refractory rheumatoid arthritis SNP
CLC: R593.22
Type: Master's thesis
Year: 2011
Downloads: 9
Quote: 0
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Abstract
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Objective To evaluate whether the MDR1 exon26 polymorphismas are associated with the refractory rheumatoid arthritis.Methods The study was carried out on two hundred and twenty three patients with RA treated and one hundred and three normal controls. The RA treated were divided into two groups according the response to disease-modifying antirheumatic drugs. There were 108 patients in the effective group and 115 patients in the ineffective group. Genetypes of the C3435T polymorphism were determined by polymerase chain reaction followed by restriction digestion(PCR-RFLP).Results There were significant differences in the genotype frequency and allele frequency among three groups. Compared to responders and controls, the nonresponders carried more CC genotype (x2=5.306, p=0.021; x2=7.810, P=0.005) and more C allele (x2=6.601, p=0.010; x2=12.172, P=0.000). But there were no statistically significant differences in genotype nor allele frequency between RA and healthy controls.Conclusion The results from our study suggest that the C3435T MDR1 gene polymorphism may not be related with the RA susceptibility, but may influence the efficacy of RA therapy with disease-modifying antirheumatic drugs and the 3435CC genotype may be related with refractory rheumatoid arthritis.
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CLC: > Medicine, health > Internal Medicine > Systemic disease > Autoimmune diseases > Autoimmune diseases, connective tissue disease > Rheumatoid arthritis
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