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  • Title: [Icodextrin improve angiogenesis of peritoneal membrane in continuous ambulatory peritoneal dialysis patients].
    Author: Dai HL, Lin AW, Qian JQ, Fang W, Ni ZH, Cao LO, Lin XH, Wu QW.
    Journal: Zhonghua Yi Xue Za Zhi; 2010 Nov 02; 90(40):2843-7. PubMed ID: 21162796.
    Abstract:
    OBJECTIVE: To observe the effect of icodextrin on peritoneal membrane angiogenesis in continuous ambulatory peritoneal dialysis (CAPD) patients. METHODS: This was a randomized double-blind perspective study of CAPD patients at our center between January 2006 to December 2006. The patients were randomized to receive either 7.5% icodextrin (ICO, n = 27) or glucose (GLU, n = 27) solution at night for 4 weeks. Peritoneal membrane function was defined as dialysate dwell for 4 hours to plasma ratio of creatinine (4 h D/Pcr) at baseline. Ultrafiltration volume, creatinine clearance (Ccr), VEGF and IL-6 in peritoneal effluent during the long night dwell (UF) dialysate were measured at baseline and after 4 weeks. The VEGF appearance was used to adjust the influences of dwell time and ultrafiltration volume. RESULTS: A total of 54 patients were enrolled. The baseline conditions showed no difference between the groups. After 2 and 4 weeks of therapy, both net UF and peritoneal creatinine clearance of long dwell were significantly higher in the ICO group than the GLU group. VEGF in night dwell PD solution was positively correlated with D/PCr (r = 0.68, P < 0.01)and negatively correlated to 4 hour ultrafiltration volume (r = -0.51, P < 0.01). The VEGF appearance was comparable between two groups at baseline. After a follow-up of 4 weeks, the VEGF appearance had an increasing tendency in the GLU group and a decreasing tendency in the ICO group but there was no significant difference. The ΔVEGF appearance (VEGF appearance in 4 week-VEGF appearance at baseline) was different between the GLU and ICO groups (9.5 ± 20.2 vs -13.4 ± 26.1, P < 0.01). IL-6 in night dwell dialysate had no difference between two groups. CONCLUSION: As compared with glucose-based solution, 7.5% icodextrin significantly decreases the local VEGF level in dialysate.
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