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  • Title: Association between interleukin-10 gene polymorphism -592 (A/C) and peritoneal transport in patients undergoing peritoneal dialysis.
    Author: Lee YT, Tsai YC, Yang YK, Hsu KT, Liao SC, Wu CH, Cheng BC, Chen JB, Lee CH, Lee CT.
    Journal: Nephrology (Carlton); 2011 Sep; 16(7):663-71. PubMed ID: 21777343.
    Abstract:
    AIM: The aim of this analysis was to know whether these three cytokine polymorphisms, including interleukin-6 (IL-6; -572 G/C), tumour necrosis factor-α (TNF-α; -308 G/A), and IL-10 (-592 A/C) have an effect on baseline peritoneal transport property and longitudinal evolution of peritoneal function. METHODS: A total of 141 stable peritoneal dialysis (PD) patients with mean treatment duration of 84.4 ± 34.2 months were enrolled. We genotyped these three cytokine polymorphisms, together with clinical parameters that were included as factors affecting longitudinal change of property of peritoneal transport over the first 3 year period after commencing therapy. RESULTS: There was no significant association between genotypes and baseline peritoneal transport property. The -592 A/C polymorphism of IL-10 was associated with longitudinal change of peritoneal transport. The ratio of D/P creatinine was significantly higher in patients with AA than those with CC/CA genotypes at 12 months (0.65 ± 0.11 vs 0.62 ± 0.09, P = 0.048) and 24 months (0.64 ± 0.12 vs 0.59 ± 0.09, P = 0.018). In addition, patients with increased peritoneal transport have greater frequency distribution of AA genotype and A allele. Logistic regression analysis revealed that -592 A allele was an independent predictor for the increase in D/P creatinine over the first 12 month period (odds ratio: 2.482, P = 0.017). There was no correlation between either polymorphism of IL-6 -572 (G/C) or TNF-α-308 (G/A) and longitudinal change of peritoneal function. CONCLUSIONS: Single nucleotide polymorphism of IL-10 -592 (A/C) was associated with longitudinal evolution of peritoneal transport rate in PD patients rather than the baseline peritoneal characteristics.
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