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Lipid microsphere-coated PGE1 improves peritoneal transport and reduces inflammation in peritoneal dialysis: A
Jianwen Wang1, Shiqi Tang1, Yang Xie1
1Department of Nephropathy, Third Xiangya Hospital of Central South University, Changsha, China.
Objective:
To evaluate the effects of lipid microspheres coated with prostaglandin E1 (lipo-PGE1) on peritoneal transport function and inflammation in patients with end-stage renal disease undergoing continuous ambulatory peritoneal dialysis (CAPD).
Methods:
In total, 89 patients were randomly allocated to the lipo-PGE1 and control groups. All the patients received conventional treatment, and those in the lipo-PGE1 group received lipo-PGE1 intravenously for 2 weeks. The levels of β2-microglobulin (β2-MG), cystatin C, albumin, urea, creatinine, interleukin-6 (IL-6), matrix metalloproteinase-2 (MMP-2), and high-sensitivity C-reactive protein (hs-CRP) were measured before and at 1 and 2 weeks after treatment.
Results:
In the lipo-PGE1 group, the peritoneal clearance rates of β2-MG, cystatin C, and albumin were significantly increased comparing with pre-treatment values, and the IL-6 appearance rate (AR) in the peritoneal dialysate and the serum levels of IL-6 and hs-CRP were markedly decreased (p < 0.05). The lipo-PGE1 group had significantly higher peritoneal clearance rates of β2-MG and cystatin C and lower IL-6 AR in the peritoneal dialysate than the control group (p < 0.05).
Conclusions:
Lipid microspheres coated with prostaglandin E1 may increase the peritoneal clearance of moderately sized molecules and macromolecules with insignificant effect on the clearance of small molecules. The reduction in IL-6 level following treatment with lipo-PGE1 may alleviate inflammation.
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