Poínhos R
Portugal
Research Article
Associations between Peritoneal Daily Phosphate Removal and Regulators of Phosphate Metabolism Including Fibroblast Growth Factor 23 in Peritoneal Dialysis Patientsy
Author(s): Sarmento-Dias M, Santos-Araújo C, Poínhos R, Oliveira B, Sousa M, Simões Silva L, Soares Silva L, Correia F and Pestana MSarmento-Dias M, Santos-Araújo C, Poínhos R, Oliveira B, Sousa M, Simões Silva L, Soares Silva L, Correia F and Pestana M
Aim: Increased FGF23 blood levels were found intact and biologically active in peritoneal dialysis (PD) patients. We aimed to evaluate in PD patients the associations between regulators of phosphate (Pi) metabolism including FGF23 and peritoneal daily Pi removal (PDPiR).
Methods: Sixty-four adult patients (male 56%, mean age 48 ± 13 years, median time on PD 3.4 months) were evaluated in a cross-sectional study (ST1). Daily Pi intake was assessed by food frequency questionnaire. Intact FGF23 blood levels were evaluated by ELISA (Immutopics, Inc., San Clemente, CA). The first 33 patients who completed 1 year after the first evaluation were re-evaluated. (longitudinal study, ST2).
Results: In ST1, both circulating FGF23 and Pi serum levels were associated with PDPiR (β=0.533, p=0.00.. View More»
