Related Experiment Videos
Stiff-man syndrome
1Department of Neurology, Mayo Clinic, Rochester, MN 55905.
Mayo Clinic Proceedings
|March 1, 1991
Summary
Stiff-man syndrome, a rare motor disorder, involves muscle stiffness and spasms. Research suggests it may be an autoimmune condition, responding to therapies like plasma exchange and corticosteroids.
Area of Science:
- Neurology
- Immunology
- Endocrinology
Background:
- Stiff-man syndrome (SMS), also known as Moersch-Woltman syndrome, is a rare neurological disorder.
- It is characterized by axial muscle rigidity and painful spasms, often triggered by stimuli.
- Current standard treatment relies on benzodiazepines.
Observation:
- SMS is associated with other conditions, including epilepsy, type 1 diabetes, and autoimmune disorders.
- Autoantibodies targeting glutamic acid decarboxylase (GAD) and pancreatic islet cells are found in SMS patients.
- These autoantibodies are present in serum and cerebrospinal fluid.
Findings:
- The presence of specific autoantibodies suggests an autoimmune basis for Stiff-man syndrome.
- Patients with SMS have shown positive responses to treatments like plasma exchange.
- Corticosteroid therapy has also yielded favorable outcomes in preliminary reports.
Implications:
- These findings suggest Stiff-man syndrome may be an autoimmune disease.
- Plasma exchange and corticosteroid therapy represent potential treatment avenues beyond benzodiazepines.
- Further research into the autoimmune mechanisms of SMS could lead to more targeted therapies.