Cited by 396Bone health and osteoporosis researchBone health and treatmentsBone Metabolism and Diseases

The effects of 2-year treatment with the aminobisphosphonate alendronate on bone metabolism, bone histomorphometry, and bone strength in ovariectomized nonhuman primates.

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Balena, R, Toolan, B C, Shea, M, Markatos, A, Myers, E R, Lee, S C, Opas, E E, Seedor, J G +2 more·1993·Journal of Clinical Investigation

Abstract

This study examined the effect of 2 yr of treatment with the aminobisphosphonate alendronate (ALN) (0.05 or 0.25 mg/kg i.v. ALN every 2 wk) on estrogen deficiency bone loss and bone strength changes in ovariectomized (OVX) baboons (n = 7 per group) and the ALN mode of action at the tissue level. Biochemical markers of bone turnover increased in OVX animals and were maintained by ALN treatment at non-OVX levels (low dose) or below (high dose). 2 yr of treatment produced no cumulative effects on bone turnover markers. Histomorphometry showed a marked increase in cancellous bone remodeling in OVX animals. Activation frequency increased from 0.48 to 0.86 per yr (L5 vertebra), and the osteoid surfaces from 9 to 13.5% (P < 0.05). No changes were observed in eroded and osteoclast surfaces. ALN treatment decreased activation frequency and indices of bone formation to control levels (low dose) or below (high dose), did not change indices of mineralization, and increased bone mineral density (BMD) in the lumbar vertebrae (L2-L4) by 15% at 0.25 mg/kg (P < 0.05), relative to vehicle-treated animals. The mean strength of cancellous bone (L4) increased by 44% (low ALN dose) and 100% (high dose), compared with vehicle. The strength of individual bones correlated with the square of the L2-L4 BMD (r = 0.91, P < 0.0034). In conclusion, ALN treatment reversed the effects of ovariectomy on cancellous bone turnover and increased bone mass and bone strength in baboons.

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  1. Baron, R., A. Vignery, L. Neff, A. Silverglate, and A. Santa Maria. 1983. Processing ofundecalcified bone specimens for bone histomorphometry. In Bone Histomorphometry: Techniques and Interpretation. R. Recker, editor. CRC Press, Inc., Boca Raton, FL. 13-35.
  2. Duncan, H. 1973. Cortical porosis: a morphological evaluation. In Bone Morphometry Proceedings of the First Workshop on Bone Morphometry.
  3. Parfitt, A. M. 1990. Bone forming cells in clinical conditions. In Bone, A Treatise, Vol. 1: The Osteoblast and Osteocyte. B. K. Hall, editor. The Telford Press, Caldwell, NJ. 351-429.
  4. Meunier, P. J., and P. Coupron. 1976. Iliac trabecular bone volume in 236 controls representativeness ofiliac samples. In Proceedings ofthe First Workshop on Bone Morphometry. Z. F. G. Jaworski, editor. University of Ottawa Press, Ottawa, Canada. 100-105.

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Authors
Balena, R., Toolan, B. C., Shea, M., Markatos, A., Myers, E. R., Lee, S. C., Opas, E. E., Seedor, J. G., Klein, H., & Frankenfield, D.
Affiliations
Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
Venue
Journal of Clinical Investigation
Published
1993-12-01
Volume
92
Issue
6
Pages
2577-2586
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2022641698
Cited by
396
References
60
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 1 · 2021: 4 · 2020: 7 · 2019: 4 · 2018: 3 · 2017: 8 · 2016: 12 · 2015: 4 · 2014: 8 · 2013: 15 · 2012: 11
FWCI
16.20
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Health Sciences › Medicine › Oncology › Bone health and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
Keywords
alendronate, aminobisphosphonates, ovariectomy, estrogen deficiency, bone loss, bone strength, bone turnover markers, bone histomorphometry, bone mineral density, baboons, non-human primates, osteoporosis
MeSH terms
Acid Phosphatase, Alkaline Phosphatase, Animals, Bone and Bones, Calcification, Physiologic, Calcitonin, Calcium, Creatinine, Diphosphonates, Dose-Response Relationship, Drug, Female, Ovariectomy, Papio, Parathyroid Hormone, Phosphates, Reference Values, Tensile Strength, Time Factors, Biomarkers, Alendronate

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