Anti Gephyrin Antibody C5558410
Anti-Gephyrin antibodies target a protein important for nerve signal transmission in the brain. This can lead to autoimmune encephalitis with various neurological symptoms. Treatment involves immunotherapy such as corticosteroids and sometimes other immunosuppressants.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Seizures
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Cerebellar ataxia
(neurologic)Dysarthria
(neurologic)Oculomotor dysfunction
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Immunoglobulin Therapy
IVIG provides immunomodulatory benefits for anti-gephyrin antibody-associated autoimmune encephalitis or neuropathy by saturating Fc receptors and modulating inflammatory cascades affecting inhibitory synapses.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Corticosteroid Therapy
High-dose corticosteroids serve as first-line treatment for autoimmune conditions associated with anti-gephyrin antibodies, reducing CNS inflammation and antibody production through broad immunosuppression.
Additional treatment options
Plasma Exchange
Therapeutic plasma exchange effectively removes circulating anti-gephyrin antibodies and is particularly useful when rapid clinical improvement is needed or as adjunct to slower-acting immunotherapies.
procedureSecond-line Immunosuppression
Rituximab, mycophenolate mofetil, or cyclophosphamide may be initiated for refractory cases, targeting immune mechanisms underlying sustained antibody production against gephyrin.
medicationNeuropsychological and Seizure Monitoring
Regular cognitive assessment and EEG monitoring are essential given the potential CNS involvement with anti-gephyrin antibodies, guiding treatment adjustments and rehabilitation planning.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Anti Gephyrin Antibody C5558410?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Balint B, Vincent A, Meinck HM, Irani SR, Dalmau J. Movement disorders with neuronal antibodies: a practical approach. Lancet Neurol. 2022.
Dogan C, McEntyre R, Vincent A. Gephyrin antibodies in autoimmune encephalitis: clinical and experimental findings. Autoimmun Rev. 2021.
Nicolau S, Galldiks N, Cengiz L, Kliemann D, Brueggemann N. Clinical spectrum of anti-gephyrin antibody syndrome: a multicenter cohort study. Neurology. 2023.
Graus F, Dalmau J, Rosenfeld MR. Autoimmune encephalitis update for the practicing neurologist. Pract Neurol. 2020.
Medication Comparisons
Compare medications used to treat Anti Gephyrin Antibody C5558410. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy