Effect of halogenmethylenebisphosphonates on bone cells in culture and on bone resorption in vivo

Abstract
Dihalogenmethylenebisphosphonates increase alkaline phosphatase activity and fatty acid oxidation in calvaria cells in culture (Cl2MBP>Br2MBP≊F2MBP). The monohalogen C1MBP and the non-halogenated analogues are less active on phosphatase and inactive on or inhibitory towards fatty acid oxidation. The three dihalogenbisphosphonates and C1MBP inhibit bone resorption in vivo, Cl2MBP most strongly.