Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function

Introduction This cross-sectional study investigated the influence of dietary protein intake (DPI) on serum phosphate levels in peritoneal dialysis (PD) patients and determined the DPI cutoff required to prevent hyperphosphatemia.Methods A total of 504 PD patients were categorized into fast (4 h dia...

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Main Authors: Xiao-Pei Wang, Ying Ma, Jing Lv, Yu Liang, Li Jin, Wan-Hong Lu, Chang-Na Liang, Bao Qian, Zhao Li
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Renal Failure
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/0886022X.2022.2148537
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author Xiao-Pei Wang
Ying Ma
Jing Lv
Yu Liang
Li Jin
Wan-Hong Lu
Chang-Na Liang
Bao Qian
Zhao Li
author_facet Xiao-Pei Wang
Ying Ma
Jing Lv
Yu Liang
Li Jin
Wan-Hong Lu
Chang-Na Liang
Bao Qian
Zhao Li
author_sort Xiao-Pei Wang
collection DOAJ
description Introduction This cross-sectional study investigated the influence of dietary protein intake (DPI) on serum phosphate levels in peritoneal dialysis (PD) patients and determined the DPI cutoff required to prevent hyperphosphatemia.Methods A total of 504 PD patients were categorized into fast (4 h dialysate/plasma [D/P] creatinine clearance ≥0.65) or slow (<0.65) peritoneal transporters. Serum phosphorus and peritoneal solute clearance were compared between the groups with different DPI.Results The fast peritoneal transporters (n = 233) were older, had lower serum albumin and phosphorus levels, and had higher peritoneal phosphorus clearance (all p < 0.001). Among the slow transporters (n = 271), serum phosphorus levels were significantly higher among patients with DPI > 1.0 g/kg/d (p < 0.001). High DPI only increased the hyperphosphatemia risk in slow transporters (not in high transporters). DPI ≥1.026 g increased the hyperphosphatemia risk in those patients (area under the curve: 0.66, p = 0.001).Conclusion High DPI increases the hyperphosphatemia risk in PD patients with slower peritoneal transport function.
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spelling doaj.art-157cc3f3d0644c54b5880f8b5aca9dcc2022-12-22T04:36:23ZengTaylor & Francis GroupRenal Failure0886-022X1525-60492022-12-014412085209210.1080/0886022X.2022.2148537Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport functionXiao-Pei Wang0Ying Ma1Jing Lv2Yu Liang3Li Jin4Wan-Hong Lu5Chang-Na Liang6Bao Qian7Zhao Li8Department of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaDepartment of Nephrology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, ChinaIntroduction This cross-sectional study investigated the influence of dietary protein intake (DPI) on serum phosphate levels in peritoneal dialysis (PD) patients and determined the DPI cutoff required to prevent hyperphosphatemia.Methods A total of 504 PD patients were categorized into fast (4 h dialysate/plasma [D/P] creatinine clearance ≥0.65) or slow (<0.65) peritoneal transporters. Serum phosphorus and peritoneal solute clearance were compared between the groups with different DPI.Results The fast peritoneal transporters (n = 233) were older, had lower serum albumin and phosphorus levels, and had higher peritoneal phosphorus clearance (all p < 0.001). Among the slow transporters (n = 271), serum phosphorus levels were significantly higher among patients with DPI > 1.0 g/kg/d (p < 0.001). High DPI only increased the hyperphosphatemia risk in slow transporters (not in high transporters). DPI ≥1.026 g increased the hyperphosphatemia risk in those patients (area under the curve: 0.66, p = 0.001).Conclusion High DPI increases the hyperphosphatemia risk in PD patients with slower peritoneal transport function.https://www.tandfonline.com/doi/10.1080/0886022X.2022.2148537Dietary protein intakehyperphosphatemiaperitoneal dialysisperitoneal transport functionperitoneal phosphate clearance
spellingShingle Xiao-Pei Wang
Ying Ma
Jing Lv
Yu Liang
Li Jin
Wan-Hong Lu
Chang-Na Liang
Bao Qian
Zhao Li
Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
Renal Failure
Dietary protein intake
hyperphosphatemia
peritoneal dialysis
peritoneal transport function
peritoneal phosphate clearance
title Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
title_full Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
title_fullStr Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
title_full_unstemmed Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
title_short Influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
title_sort influence of dietary protein on serum phosphorous levels in peritoneal dialysis patients with different initial transport function
topic Dietary protein intake
hyperphosphatemia
peritoneal dialysis
peritoneal transport function
peritoneal phosphate clearance
url https://www.tandfonline.com/doi/10.1080/0886022X.2022.2148537
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