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- W4387356784 abstract "Background: Despite several advantages compared to haemodialysis (HD), peritoneal dialysis (PD) remains an underused dialysis technique due to its high technique failure rate related to membrane fibrosis and peritonitis events. Previous work has suggested a harmful role for the complement system in these processes, highlighting the need for a more comprehensive examination in PD. Methods: Plasma levels of C1q, mannose-binding lectin (MBL), Properdin, Factor D, C3d/C3-ratio and soluble membrane attack complex (sC5b-9) were determined in PD patients ( n = 55), HD patients ( n = 41), non-dialysis chronic kidney disease (CKD) patients ( n = 15) and healthy controls ( n = 14). Additionally, C1q, MBL, Properdin, Factor D and sC5b-9 levels were assessed in the peritoneal dialysis fluid (PDF). In a subgroup, interleukin-6, matrix metalloproteinase-2 (MMP-2), myeloperoxidase (MPO) and elastase were measured in the PDF. Results: PD patients had significantly higher systemic levels of sC5b-9 compared to healthy controls, CKD and HD patients ( p < 0.001). Plasma levels of C1q and C3d/C3-ratios were significantly associated with systemic sC5b-9 levels ( p < 0.001). Locally, sC5b-9 was detected in the PDF of all PD patients, and levels were approximately 33% of those in matched plasma, but they did not correlate. In the PDF, only Properdin levels remained significantly associated with PDF sC5b-9 levels in multivariate analysis ( p < 0.001). Additionally, PDF levels of sC5b-9 positively correlated with elastase, MPO and MMP-2 levels in the PDF ( p < 0.01). Conclusions: Our data reveal both systemic and local complement activation in PD patients. Furthermore, these two processes seem independent considering the involvement of different pathways and the lack of correlation." @default.
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- W4387356784 date "2023-10-05" @default.
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- W4387356784 title "Systemic and local complement activation in peritoneal dialysis patients via conceivably distinct pathways" @default.
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- W4387356784 doi "https://doi.org/10.1177/08968608231198984" @default.
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