limbs/digits/tail
• increase in cortical bone thickness at the diaphysis of femurs at 10 weeks of age
• cortical bone thickness of femurs increases in mutants but decreases in wild-type mice with aging
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skeleton
• increase in cortical bone thickness at the diaphysis of femurs at 10 weeks of age
• cortical bone thickness of femurs increases in mutants but decreases in wild-type mice with aging
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• bone mineral density of femurs increases in mutants but decreases in wild-type with advancing age
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• increase in trabecular bone volume
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• progressive increase in bone mass
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• significant increase in mineral apposition rates, resulting in increased bone formation rates with no change in bone resorption
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• bone strength is increased at 52 weeks of age compared to wild-type
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