Bisphosphonate kinetics in patients undergoing continuous ambulatory peritoneal dialysis: Relations to dynamic bone histomorphometry, osteocalcin and parathyroid hormone

Preben Joffe, Lars Hyldstrup, James G. Heaf, Jan Pødenphant, Jens H. Henriksen

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    Abstrakt

    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 < 0.05), as well as tetracycline-labelled surface, bone formation rate, surfaces, volume and tissue referents, respectively (p < 0.01). Furthermore, levels of alkaline phosphatase showed significant correlations to mineral appositional rate, tetracycline-labelled surface and bone formation rate, volume referent (p < 0.05). Values of parathyroid hormone were significantly correlated to resorption surface (p < 0.02), active resorption surface, mineral appositional rate and mineralization lag time (p < 0.05). In conclusion, BBC was of no use in patients treated with CAPD as a noninvasive test for evaluation of bone histomorphometry. However, osteocalcin correlated best with resorption and bone dynamics indices. Levels of alkaline phosphatase and parathyroid hormone were of a more limited value.

    OriginalsprogEngelsk
    Sider (fra-til)419-424
    Antal sider6
    TidsskriftAmerican Journal of Nephrology
    Vol/bind12
    Udgave nummer6
    DOI
    StatusUdgivet - 1 jan. 1992

    Fingeraftryk Udforsk hvilke forskningsemner 'Bisphosphonate kinetics in patients undergoing continuous ambulatory peritoneal dialysis: Relations to dynamic bone histomorphometry, osteocalcin and parathyroid hormone' indeholder.

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