The relationship between bone morphogenic protein-7 and peritoneal transport characteristics

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
Cheuk-Chun SzetoPhilip Kam-Tao Li

Abstract

After prolonged peritoneal dialysis (PD) and exposure to a non-physiological dialysis solution, peritoneal mesothelial cells undergo the epithelial-to-mesenchymal transition. In other biological systems, bone morphogenic protein-7 (BMP-7) is a key factor that controls this process. However, the role of BMP-7 in peritoneal physiology has not been studied. We studied the peritoneal transport characteristics of 50 consecutive new PD patients at 4 and 52 weeks after PD. Peritoneal permeability will be determined by the standard peritoneal equilibration test (PET). BMP-7 in PD effluent (PDE) at mRNA and protein level at 4 weeks was quantified. At 4 weeks, the mRNA expression of BMP-7 in PDE significantly correlated with peritoneal transport characteristics, including the dialysate-to-plasma creatinine ratio at 4 h (D/P4) (r = 0.422, P = 0.015) and mass transfer area coefficient (MTAC) of creatinine (r = 0.457, P = 0.008). The PDE BMP-7 level by ELISA also had marginal correlation with D/P4 (r = 0.287, P = 0.072) and MTAC creatinine (r = 0.287, P = 0.073), although the result did not reach statistical significance. For the subgroup of patients who remained free of peritonitis, the PDE BMP-7 level by ELISA had significant correlation ...Continue Reading

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Citations

Jan 14, 2010·Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association·Jesús LoureiroManuel López-Cabrera

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