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Blepharospasm with elevated anti-acetylcholine receptor antibody titer
1Department of Neurology, First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou 310003, China.
Arquivos De Neuro-Psiquiatria
|September 20, 2018
Summary
Serum anti-acetylcholine receptor antibody (anti-AChR-Abs) levels are higher in blepharospasm (BSP) patients, suggesting a role for dysimmunity. Elevated anti-AChR-Abs may predict a poorer response to botulinum toxin type A injections in BSP.
Area of Science:
- Neurology
- Immunology
Background:
- Blepharospasm (BSP) is a focal dystonia of unknown etiology.
- Investigating potential autoimmune mechanisms in BSP is crucial for understanding its pathogenesis.
Purpose of the Study:
- To investigate the association between serum anti-acetylcholine receptor antibody (anti-AChR-Abs) levels and clinical parameters in patients with blepharospasm (BSP).
Main Methods:
- Serum anti-AChR-Abs levels were quantified using enzyme-linked immunosorbent assay (ELISA) in 83 BSP patients, 60 hemifacial spasm (HFS) patients, and 58 controls.
- Clinical data, including demographics and response to botulinum toxin type A (BoNT-A), were collected.
Main Results:
- Anti-AChR-Abs levels were significantly elevated in the BSP group compared to HFS and control groups (0.237 ± 0.022 vs. 0.160 ± 0.064 and 0.126 ± 0.038, respectively).
- Higher anti-AChR-Abs levels correlated with older age and shorter duration of response to BoNT-A injections.
Conclusions:
- Elevated anti-AChR-Abs titers in BSP patients suggest a potential role for dysimmunity in the condition's development.
- Increased anti-AChR-Abs may serve as a predictive biomarker for a diminished response to BoNT-A treatment in blepharospasm.
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