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Isometric and Eccentric Force Generation Assessment of Skeletal Muscles Isolated from Murine Models of Muscular Dystrophies
Published on: January 31, 2013
Muscular dystrophy in female dogs
G D Shelton1, L A Liu, L T Guo
1Department of Pathology, University of California, San Diego, La Jolla 92093-0612, USA. gshelton@ucsd.edu
Journal of Veterinary Internal Medicine
|May 31, 2001
Summary
Female dogs can develop muscular dystrophy due to dystrophin or laminin alpha2 gene mutations. Diagnosis can be challenging, as symptoms vary and some cases remain unclassified.
Area of Science:
- Veterinary Pathology
- Canine Genetics
- Muscular Dystrophy Research
Background:
- Muscular dystrophy, often caused by dystrophin gene mutations, primarily affects males due to X-chromosome inheritance.
- Female dogs with muscular dystrophy may be misdiagnosed or overlooked, leading to delayed or incorrect treatment.
- Clinical signs in affected dogs include weakness, muscle wasting, tremors, and gait abnormalities.
Purpose of the Study:
- To investigate the occurrence and underlying causes of muscular dystrophy in female dogs.
- To analyze dystrophin and other muscle-associated proteins in female dogs with suspected muscular dystrophy.
- To highlight diagnostic challenges in identifying muscular dystrophy in female canines.
Main Methods:
- Immunohistochemistry was employed to examine muscle biopsy specimens from five female dogs.
- Analysis focused on dystrophin, sarcoglycans, and laminin alpha2, proteins linked to human muscular dystrophy.
- Clinical signs and serum creatine kinase activity were also evaluated.
Main Results:
- One dog showed no detectable dystrophin; another exhibited mosaic dystrophin deficiency.
- A third dog had normal dystrophin but lacked laminin alpha2.
- Two cases remained unclassified, indicating complex or unidentified causes.
Conclusions:
- This study confirms dystrophin- and laminin alpha2-associated muscular dystrophy in female dogs.
- Diagnostic difficulties are highlighted, emphasizing the need for comprehensive protein analysis.
- Further research is warranted to understand the full spectrum of muscular dystrophy in female canines.
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