ArticleNature communications2026
Genetic architecture of MRI-derived cervical spinal cord morphology reveals sensory-motor axis and systemic disease associations.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The spinal cord is critical to motor, sensory, autonomic function, and increasingly implicated in neurological disease and human health, yet its genetic architecture remains largely unexplored. We perform large-scale phenotyping of the upper cervical spinal cord (C1-C3) structure using brain magnetic resonance imaging from over 80,000 UK Biobank participants, extracting shape metrics including cross-sectional area, diameters, and eccentricity. We identify a total of 179 independent genome-wide significant variants, with cervical spinal cord morphology showing moderate to high SNP-based heritability (0.16 to 0.42). We also uncover sex-specific genetic signals, highlighting potential biological sex differences in spinal cord development. In addition, spinal cord structure is associated with a wide range of neurological, metabolic, and systemic conditions, such as multiple sclerosis, neuropathies, diabetes, and attention-deficit/hyperactivity disorder. These findings establish the cervical spinal cord as a genetically informative and health relevant structure, offering opportunities to study its role in disease mechanisms and human health.
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