학술논문

Characterization of Complex, Co-Adapted Skeletal Biomechanics Phenotypes: A Needed Paradigm Shift in the Genetics of Bone Structure and Function
Document Type
Review Paper
Source
Current Osteoporosis Reports. June 2014 12(2):174-180
Subject
Bone
Osteoporosis
Genetics
Biomechanics
Bone fragility
Fracture risk
Composite traits
Bone mineral density
Co-adaptation
Fracture resistance
Mechanical load
Bone quality
Structural integrity
High-risk phenotypes
Phenotypic variation
Compensatory signaling
Gene pathways
Nonhuman primate
Baboon
Papio
Skeletal genetics
Phenotypic integration
Language
English
ISSN
1544-1873
1544-2241
Abstract
The genetic architecture of skeletal biomechanical performance has tremendous potential to advance our knowledge of the biological mechanisms that drive variation in skeletal fragility and osteoporosis risk. Research using traditional approaches that focus on specific gene pathways is increasing our understanding of how and to what degree those pathways may affect population-level variation in fracture susceptibility, and shows that known pathways may affect bone fragility through unsuspected mechanisms. Non-traditional approaches that incorporate a new appreciation for the degree to which bone traits co-adapt to functional loading environments, using a wide variety of redundant compensatory mechanisms to meet both physiological and mechanical demands, represent a radical departure from the dominant reductionist paradigm and have the potential to rapidly advance our understanding of bone fragility and identification of new targets for therapeutic intervention.