skeleton
• a 5-fold increase in the rate of bone formation is detected; however, osteoblast surface and osteiod thickness are similar to wild-type
• in vitro osteoblasts produce larger and more mineralized nodules but show similar growth curve kinetics to wild-type cells
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• long bone marrow cavities are virtually obliterated by 7 months of age
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• bone mass is similar at birth but by 8 weeks of age bone mass is increased in the long bones, calvariae, and vertebrae
• however, no premature cartilage mineralization is seen and skeletal morphogenesis is similar to wild-type
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• adult onset
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cellular
• a 5-fold increase in the rate of bone formation is detected; however, osteoblast surface and osteiod thickness are similar to wild-type
• in vitro osteoblasts produce larger and more mineralized nodules but show similar growth curve kinetics to wild-type cells
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