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Special Issue: Immune-Mediated Neurological Disorders.

Biomedicines

December 2023

Department of Neurology, Santa Maria University Hospital, 05100 Terni, Italy.

For a long time, the immune system has been considered responsible for only a minority of neurological conditions involving the central and peripheral nervous system (CNS, PNS), respectively, namely multiple sclerosis and myasthenia gravis (with myastheniform syndromes) [...

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Cancer therapy relies on new antitumoral drugs called immune checkpoint inhibitors (ICI), which produce long-lasting anti-tumor responses and lengthen survival, but cause autoimmune-type toxicity. The clinical characteristics induced by ICI are not well characterized to date and careful collection of clinical data is required to accurately define its safety profile. We conducted a literature search in the main clinical search engines to identify pharmacological ocular iatrogenic events of ICIs related to ocular motility.

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Stiff Person Syndrome and Acetylcholine Receptor Ganglionic Neuronal Antibodies.

Case Rep Neurol

January 2020

Department of Neurosurgery, Instituto Mexicano de Neurociencias, Huixquilucan, Mexico.

The association between stiff person syndrome and paraneoplastic syndromes has been described, linking intracellular or extracellular antibodies. We describe the case of a 64-year-old woman with stiff person syndrome and positivity for acetylcholine receptor ganglionic neuronal antibodies, which can also be seen in muscular hyperexcitability conditions, as well as other paraneoplastic syndromes. The relevance of this report is the possible direct elevation of this antibody due to a direct immunological cause.

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Cibenzoline is a class Ic antiarrhythmic agent that can be used to treat supraventricular arrhythmias. A case is reported of cibenzoline overdose in a patient with impaired renal function, leading not only to the usual cardiac and metabolic symptoms (bradycardia and hypoglycaemia), but also to a myastheniform syndrome with acute respiratory failure. Neuromuscular blockade was demonstrated by repetitive supramaximal stimulation of the median nerve, and diaphragmatic involvement was evidenced by applying the same protocol to the phrenic nerve.

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A man of 23 years was affected by myasthenia with amyotrophic patterns. From the neurophysiological viewpoint, there were typical electrophysiological aspects of myasthenia gravis and the Eaton-Lambert syndrome simultaneously. In some instances the various electrophysiological tests were preceeded by the administration of Tensilon, calcium gluconate and sodium benzoate caffeine.

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