Bisphosphonate Kinetics in Patients Undergoing Continuous Ambulatory Peritoneal Dialysis: Relations to Dynamic Bone Histomorphometry, Osteocalcin and Parathyroid Hormone

Abstract
In the evaluation of renal osteodystrophy bone biopsy is often performed. However, a reliable noninvasive test could be very useful, and recently the estimation of osseous tracer uptake as an index of bone formation has been introduced – the bone bisphosphonate clearance (BBC). The aim of the present investigation therefore was to compare BBC with parameters of bone histology, serum levels of osteocalcin, alkaline phosphatase, and parathyroid hormone in patients (n = 8) undergoing continuous ambulatory peritoneal dialysis (CAPD). No significant correlations were found between BBC values and the bone histomorphometrical variables measured. A positive correlation was seen between serum osteocalcin and resorption and active resorption surface (p

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