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      Effects on Serum Parathyroid Hormone of Intravenous Treatment with Alphacalcidol in Patients on Chronic Hemodialysis

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          Abstract

          Secondary hyperparathyroidism is common in chronic renal failure and is due to inadequate synthesis of calcitriol, the active metabolite of vitamin D. Intravenous administration of alphacalcidol, a synthetic analogue which is metabolized to calcitriol, was given during 12 weeks to 51 patients on chronic hemodialysis in doses between 1 and 4 μg/dialysis session. The treatment caused a modest rise, by 0.25 mmol/l, in serum calcium but a 60% reduction of intact serum PTH concentrations. Most patients acquired normal PTH values and hypercalcemia was easily avoided by dose adjustments. There was a significant reduction in serum PTH within the 1st week before the serum calcium concentrations were increased, but after that time the induced suppression of PTH was correlated to the induced rise in serum calcium. These observations are compatible with the view that calcitriol exerts both a direct inhibition of PTH release and increases the gland’s sensitivity to calcium. The major implication of the study is that intravenous treatment with alphacalcidol is of great clinical value since it is easy to administer and provides suppression of hypersecretion of PTH with few side effects.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1990
          1990
          10 December 2008
          : 55
          : 4
          : 380-385
          Affiliations
          Departments of Internal Medicine at Sundsvall, Västerås, Mora and Karlstad Hospitals and the Departments of Internal Medicine and Clinical Chemistry, University Hospital, Uppsala, Sweden
          Article
          186004 Nephron 1990;55:380–385
          10.1159/000186004
          2392190
          © 1990 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          Page count
          Pages: 6
          Categories
          Original Paper

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