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Spheroid body myopathy revisited
H H Goebel1, A N D'Agostino, J Wilson
1Division of Neuropathology, Mainz University Medical Center, Germany.
Muscle & Nerve
|September 1, 1997
Summary
Spheroid body myopathy, an inherited neuromuscular condition, is characterized by distinctive spheroid bodies in muscle fibers. These bodies contain desmin, alpha-B crystallin, and ubiquitin, linking it to desminopathies.
Area of Science:
- Neurology
- Muscle Biology
- Genetics
Background:
- Spheroid body myopathy (SBM) is an autosomal-dominant inherited neuromuscular disorder.
- Previous studies reported SBM in Indiana, characterized by spheroid bodies in muscle tissue.
Observation:
- This study details additional findings from the Oregon branch of SBM.
- Identical spheroid bodies were confirmed in affected individuals from Indiana.
- These spheroid bodies were observed within muscle fibers of myopathic specimens.
Findings:
- Spheroid bodies in SBM muscles showed increased levels of desmin, alpha-B crystallin, and ubiquitin.
- The presence of these proteins within the spheroid bodies was confirmed through analysis.
Implications:
- SBM is now recognized as part of the desminopathy spectrum of neuromuscular conditions.
- This classification aids in understanding the molecular mechanisms underlying SBM.
- Further research into desminopathies can inform SBM diagnosis and treatment.