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Calcified Tissue International

, Volume 37, Issue 2, pp 158–164 | Cite as

The effect of metabolic acidosis on vitamin D metabolites and bone histology in uremic rats

  • Yuk-Luen Chan
  • Elliott Savdie
  • Rebecca S. Mason
  • Solomon Posen
Laboratory Investigations

Summary

Biochemical data and skeletal histomorphometric measurements are presented for normal rats and for two groups of rats rendered uremic by partial nephrectomy. In one of these groups chronic acidosis was induced by the oral administration of hydrochloric acid. Uremic animals had higher urine calcium excretion rates and lower serum concentrations of vitamin D metabolites than normal rats. Chronic acid loading of uremic rats resulted in hypercalcemia, elevated serum parathyroid hormone concentrations, and a significant loss of trabecular bone in addition to the above changes. Greater osteoclast densities and higher resorption surfaces were seen in the uremic acidotic animals than in the other two groups. The acidotic uremic state induces more potent changes in calcium metabolism and bone structure than uremia alone.

Key words

Uremic acidotic Uremic nonacidotic Metabolic acidosis Hypercalcemia Histomorphometry 

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Yuk-Luen Chan
    • 1
  • Elliott Savdie
    • 1
  • Rebecca S. Mason
    • 1
  • Solomon Posen
    • 1
  1. 1.Endocrine and Renal UnitsRoyal North Shore HospitalSt. LeonardsAustralia

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