Parathyroid Hormone Enhances the Transcript and Polypeptide Levels of Insulin-Like Growth Factor I in Osteoblast-Enriched Cultures from Fetal Rat Bone*

PTH stimulates bone resorption and formation, but the mechanism of its anabolic effect is unknown. The effects of PTH on bone formation could be mediated by local regulators, either by altering their binding to receptors or by modulating their synthesis. Cell extracts from PTH-treated osteoblast-enr... View More