Abstract
1,25-dihydroxycholecalciferol (1,25-(OH)2D3), added at doses which stimulate bone resorption in the system used, did not increase adenosine 3′,5′-cyclic monophosphate (cAMP) production in vitro in mouse calvaria incubated for up to 48 h. Thus 1,25-(OH)2D3 does not appear to stimulate bone resorption through involvement of an increased cAMP production.