ABSTRACT
I. Introduction......................................................................................................................28
II. Materials and Methods................................................................................................... 29
III. Results.............................................................................................................................. 30 A. A Combination of Physiological Factors, PTH and Vitamin D3
Metabolites, as a Prerequisite for Inducing Bone Calcification In Vitro .. 30 B. Dose-Response Relationship of Calcification-Stimulating Factors............31 C. Effect on Calcification of Natural and Synthetic Vitamin D3 Analogues
Other Than la , 25-(OH)2D3 and 24R,25-(OH)2D3 ...................................... 33 D. Ossification Stages Regulated by Their Own Different Combination of
Vitamin D3 Metabolites and P T H ................................................................... 33 E. No Effect of Calcitonin on Bone Calcification In V itro .............................34
IV. Discussion........................................................................................................................35