Abstract.
Our knowledge of the concentration of growth factors in growing bone is limited. In the present study, we examined the developmental changes in the concentrations of insulin-like growth factor I (IGF-I) and transforming growth factor beta (TGF-β) in the rat femur between weanling and maturity. We show that during the rapid growth phase there is a continuous rise in bone matrix IGF-I and TGF-β in all compartments of the femoral bone. The association between IGF-I and TGF-β is not only temporal, but with few exceptions is also observed within the animals of each age class. These data support the hypothesis that IGF-I and TGF-β play an important role in the growth-associated accumulation of bone mass.
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Received: 16 April 1997 / Accepted: 9 July 1998
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Pfeilschifter, J., Erdmann, J., Storch, S. et al. Changes in the Concentration of Insulin-Like Growth Factor I and Transforming Growth Factor β1 in Rat Femoral Bone during Growth. Calcif Tissue Int 64, 78–82 (1999). https://doi.org/10.1007/s002239900582
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DOI: https://doi.org/10.1007/s002239900582