Beneficial effect of chymostatin on dystrophic mice.
We studied the effect of chymostatin on dystrophic mice (C57BL/6J-dy). The locomotor activity of normal mice increased markedly, attaining a plateau at 8 weeks of age, whereas in dystrophic mice, it increased until the age of 7 weeks, and thereafter decreased gradually. Serum levels of creatine phosphokinase were significantly higher in dystrophic mice compared with normal mice, and dystrophic mice had a reduced muscle protein content. When 3-week-old dystrophic mice received chymostatin (1 mg/kg, i.p.), the decrease in locomotor activity was retarded, serum enzyme levels decreased significantly, and muscle protein content increased significantly. In addition, the survival time of treated dystrophic mice was prolonged. The locomotor activity, serum enzyme levels, and muscle protein content of normal mice were not affected by chymostatin. Therefore, we posit that chymostatin retarded the progression of dystrophy in mice.[1]References
- Beneficial effect of chymostatin on dystrophic mice. Komatsu, K., Matsui, A., Satoh, S. Exp. Neurol. (1986) [Pubmed]
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