Key result
Dysf Δ5/Δ5 mutation impairs motor coordination in mice, reducing rotarod latency ~74% vs wild-type.
Why the study?
To investigate in vivo the pathogenic consequences of a novel five-nucleotide microdeletion in DYSF identified in Taiwanese patients with limb-girdle muscular dystrophy type R2.
Absolute Event Rate: 26% vs 100%
p-value: p=0.017
The novel DysfΔ5/Δ5 knock-in mouse model successfully recapitulates the muscular dystrophy-like pathology and motor deficits of human LGMD-R2, providing a viable platform for future mechanistic and preclinical studies.
No takes yet. Share an insight, caveat, or question.
Should not yet change clinical practice in dysferlinopathy; confirms the DysfΔ5/Δ5 knock-in mouse as a viable platform for LGMD-R2 research.
Chen et al. (2026) studied Limb-Girdle Muscular Dystrophy type R2 (n=12). Dysf Δ5/Δ5 knock-in vs. Wild-type mice was evaluated on Latency to fall on accelerating rotarod (seconds) (p=0.017). Dysf Δ5/Δ5 knock-in mice exhibited impaired motor coordination, with a significantly shorter latency to fall on the accelerating rotarod (26 vs 100 seconds) compared to wild-type mice.
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