Calcified Tissue Research

, Volume 16, Issue 1, pp 163–167

The effect of phenytoin on parathyroid extract and 25-hydroxycholecalciferol-induced bone resorption: Adenosine 3′, 5′ cyclic monophosphate production

  • M. V. Jenkins
  • M. Harris
  • M. R. Wills
Short Communication

DOI: 10.1007/BF02008223

Cite this article as:
Jenkins, M.V., Harris, M. & Wills, M.R. Calc. Tis Res. (1974) 16: 163. doi:10.1007/BF02008223

Abstract

Phenytoin, at a concentration which is known to inhibit parathyroid extract-induced bone resorptionin vitro, has been shown to have no significant effect on either the cyclic AMP content of four-day-old mouse calvaria which had been in tissue culture for 48 h or on the increase in cyclic AMP content occurring after the addition of parathyroid extract to the medium. Phenytoin has also been shown to be an effective inhibitor of bone resorptionin vitro induced by 25-hydroxycholecalciferol. These observations suggest that the inhibitory effect of phenytoin on parathyroid extract and hormone-induced bone resorption takes place beyond the cyclic AMP stage.

Key words

Bone Parathyroid 25-Hydroxycholecalciferol Adenosine 3′, 5′ cyclic monophosphate 

Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • M. V. Jenkins
    • 1
  • M. Harris
    • 1
  • M. R. Wills
    • 1
  1. 1.Department of Chemical PathologyRoyal Free HospitalLondonEngland

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