Related Experiment Videos
Electron microscopic and histochemical studies on dystrophic masseter muscle
Scandinavian Journal of Dental Research
|December 1, 1985
Summary
Dystrophic mouse masseter muscles show severe fiber damage. Electron microscopy and histochemistry reveal significant alterations in these muscles compared to normal controls.
Area of Science:
- Muscle biology
- Comparative pathology
- Biochemistry
Background:
- Muscular dystrophies are genetic disorders causing progressive muscle weakness.
- The masseter muscle's role in mastication makes it a potential indicator of muscular dystrophy progression.
Purpose of the Study:
- To investigate the ultrastructural and histochemical changes in the masseter muscle of dystrophic mice.
- To compare these changes with those in normal mice.
Main Methods:
- Electron microscopy was used to examine muscle fiber ultrastructure.
- Histochemical techniques assessed myosin ATPase and succinic dehydrogenase activity.
Main Results:
- Dystrophic mouse masseter muscle fibers exhibited severe structural abnormalities.
- Histochemical analysis indicated significant alterations in enzyme activity within dystrophic muscle fibers.
Conclusions:
- The masseter muscle is significantly affected in this model of muscular dystrophy.
- These findings highlight the widespread impact of muscular dystrophy on skeletal muscle, including masticatory muscles.