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Focal lesions of muscle in peripheral vascular disease
Abstract:
Lesions in skeletal muscle resulting from ischemia caused by peripheral vascular disease in two patients were essentially identical to the early muscle lesions of Duchenne muscular dystrophy (DMD) patients and carriers of that disease, as well as to the early muscle lesions of experimental animals with aorta ligations plus a small dose of 5-hydroxytryptamine (serotonin). The one similarity is harmonious with, although does not necessarily advance, the ischemia hypothesis of DMD, and the other supports the ischemia mechanism proposed in the animal model.
Insights
Skeletal muscle ischemia from vascular disease mirrors early Duchenne muscular dystrophy (DMD) lesions. This finding supports the ischemia hypothesis for DMD and proposed animal models.
Area of Science:
- Muscle pathology
- Ischemia research
- Duchenne muscular dystrophy
Background:
- Peripheral vascular disease can cause skeletal muscle ischemia.
- Duchenne muscular dystrophy (DMD) is a severe genetic muscle-wasting disease.
- Previous research suggests ischemia may play a role in DMD.
Purpose of the Study:
- To compare skeletal muscle lesions in patients with peripheral vascular disease-induced ischemia to those in Duchenne muscular dystrophy (DMD) patients and animal models.
- To evaluate the consistency of these lesions with the ischemia hypothesis of DMD.
Main Methods:
- Histopathological examination of skeletal muscle lesions.
- Comparison of lesions from two patients with peripheral vascular disease-induced ischemia.
- Comparison with published data on early muscle lesions in DMD patients, carriers, and experimental animal models (aorta ligation plus serotonin).
Main Results:
- Skeletal muscle lesions in patients with peripheral vascular disease-induced ischemia were virtually identical to early lesions in DMD patients and carriers.
- These lesions also matched early lesions observed in experimental animals subjected to aorta ligation and serotonin.
Conclusions:
- The observed similarity supports the ischemia hypothesis of Duchenne muscular dystrophy (DMD).
- The findings align with and support the proposed ischemia mechanism in experimental animal models of muscle disease.