Abstract
Introduction
This study was designed to assess changes in biochemical markers of bone remodeling in early postmenopausal women receiving calcium supplementation.
Materials and methods
In a randomized cross-over study of eighteen weeks duration, the effect of a 6-week calcium supplementation (1000 mg calcium carbonate) on biochemical markers of bone resorption (collagen type I cross-linked C- and N-telopeptides) and bone formation (osteocalcin, total and bone-specific alkaline phosphatase), and total serum calcium was assessed in 27 early postmenopausal women.
Results
While total serum calcium levels increased significantly due to calcium supplementation (p<0.05), biochemical markers of both bone resorption and formation remained virtually unchanged.
Conclusion
In contrast to other investigations, there was no significant short-term effect of calcium supplementation on biochemical markers of either bone resorption or formation.
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Acknowledgments
We wish to thank Gretchen Davis (Laboratory, Department of Obstetrics and Gynecology), Lynne Atley, Ph.D. (Orthopedic Research Laboratories, Department of Orthopaedics and Sports Medicine), Michael Davis (Osteoporosis Research Group, Department of Radiology, University of Washington, Seattle, Washington, USA), and Iris Paffenholz (Laboratory, Department of Obstetrics and Gynecology, University of Bonn, Bonn, Germany) for their excellent assistance. We are also much indebted to Guido Lüchters (University of Bonn, Bonn, Germany) for his professional help with the statistical analysis. Dr. Ulrich was supported by a German Research Foundation grant (Ul 142/1-1).
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Ulrich, U., Miller, P.B., Eyre, D.R. et al. Short-term calcium supplementation has no effect on biochemical markers of bone remodeling in early postmenopausal women. Arch Gynecol Obstet 270, 230–234 (2004). https://doi.org/10.1007/s00404-003-0562-1
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DOI: https://doi.org/10.1007/s00404-003-0562-1