PMID- 18178947 OWN - NLM STAT- MEDLINE DCOM- 20080603 LR - 20200109 IS - 0896-8608 (Print) IS - 0896-8608 (Linking) VI - 28 IP - 1 DP - 2008 Jan-Feb TI - Short-term effects of a new bicarbonate/lactate-buffered and conventional peritoneal dialysis fluid on peritoneal and systemic inflammation in CAPD patients: a randomized controlled study. PG - 44-52 AB - OBJECTIVES: This study was designed to compare the local peritoneal and systemic inflammatory effects of a conventional lactate-based (Lac) peritoneal dialysis (PD) solution and a new biocompatible bicarbonate/lactate-based (Bic/Lac) solution having low concentration of glucose degradation products. METHODS: 26 stable, prevalent PD patients were enrolled in this prospective study. They sequentially underwent 3 months of therapy with the Lac solution and 3 months with the Bic/Lac solution in a randomized order. Flow cytometry was used to measure the expression of inflammatory molecules on peritoneal cells in overnight effluent collected at the end of each study period. RESULTS: 21 patients successfully completed the study. Mean fluorescence intensity of human leukocyte antigen (HLA)-DR and CD14 expression by macrophages were not different between Lac and Bic/Lac. The peritoneal appearance rate of cancer antigen 125 (kU/minute) was 68 +/- 37 with Lac and 133 +/- 66 with Bic/Lac (p < 0.001), and of interleukin (IL)-6 (ng/minute), 0.28 +/- 0.2 with Lac and 0.18 +/- 0.16 with Bic/Lac (p = 0.014). HLA-DR macrophage expression and IL-6 peritoneal appearance rates did not correlate. Serum concentrations with Lac and Bic/Lac were, for IL-6, 3.49 +/- 2.28 and 3.72 +/- 2.46 ng/L (p = 0.17), and for high-sensitivity C-reactive protein, 2.31 +/- 2.98 and 2.71 +/- 3.31 mg/L (p = 0.32) respectively. The concentration of effluent macrophages (x10(6)/L) with Lac was 1.6 +/- 1.6 and with Bic/Lac 2.6 +/- 3.3 (p = 0.07). CONCLUSIONS: We conclude that, although there was a significant reduction in peritoneal IL-6 in patients using Bic/Lac solution, systemic levels of inflammatory markers did not differ between the two solutions and no changes were present in macrophage surface activation markers, suggesting perhaps a less important role of peritoneal macrophages in the intraperitoneal chronic inflammatory process. The number of effluent macrophages tended to be higher in patients using the Bic/Lac solution, possibly contributing to improved intraperitoneal defense. FAU - Pajek, Jernej AU - Pajek J AD - Department of Nephrology, University Medical Center Ljubljana, Slovenia. jernej.pajek@mf.uni-lj.si FAU - Kveder, Radoslav AU - Kveder R FAU - Bren, Andrej AU - Bren A FAU - Gucek, Andrej AU - Gucek A FAU - Ihan, Alojz AU - Ihan A FAU - Osredkar, Josko AU - Osredkar J FAU - Lindholm, Bengt AU - Lindholm B LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Perit Dial Int JT - Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis JID - 8904033 RN - 0 (Bicarbonates) RN - 0 (Buffers) RN - 0 (CA-125 Antigen) RN - 0 (Dialysis Solutions) RN - 0 (Interleukin-6) RN - 33X04XA5AT (Lactic Acid) RN - 9007-41-4 (C-Reactive Protein) SB - IM CIN - Perit Dial Int. 2008 Jan-Feb;28(1):28-31. PMID: 18178944 MH - Adult MH - Aged MH - Ascitic Fluid/metabolism MH - Bicarbonates/*pharmacology MH - Buffers MH - C-Reactive Protein/metabolism MH - CA-125 Antigen/metabolism MH - Cross-Over Studies MH - Dialysis Solutions/*pharmacology MH - Female MH - Flow Cytometry MH - Humans MH - Interleukin-6/metabolism MH - Lactic Acid/*pharmacology MH - Macrophages/metabolism MH - Male MH - Middle Aged MH - Peritoneal Dialysis, Continuous Ambulatory/*methods MH - Peritonitis/*physiopathology MH - Prospective Studies MH - Time Factors EDAT- 2008/01/08 09:00 MHDA- 2008/06/05 09:00 CRDT- 2008/01/08 09:00 PHST- 2008/01/08 09:00 [pubmed] PHST- 2008/06/05 09:00 [medline] PHST- 2008/01/08 09:00 [entrez] AID - 28/1/44 [pii] PST - ppublish SO - Perit Dial Int. 2008 Jan-Feb;28(1):44-52.