A single-fibre electromyography study of neuromuscular transmission in patients with cluster headache. 2012

Izabela Domitrz, and Małorzata Gaweł, and Wojciech Domitrz, and Anna Kostera-Pruszczyk, and Hubert Kwieciński
Department of Neurology, Medical University, 1A Banacha Street, 02-097 Warsaw, Poland. izabela.domitrz@wum.edu.pl

OBJECTIVE Mutations of CACNA1A, which encodes a neuronal P/Q Ca2+ channel, are present in patients with familial hemiplegic migraine, and possibly in other types of migraine as well. This calcium channel is also involved in neuromuscular transmission. In our previous study we confirmed that the single-fibre electromyography (SFEMG) method can demonstrate a neuromuscular transmission deficit in migraine with aura. The aim of our present study was to estimate the neurotransmitter dysfunction in cluster headache and to compare the results between patients with cluster headache and those with migraine with aura. METHODS We selected 6 patients with cluster headache and 6 patients with migraine with typical aura. SFEMG of the voluntarily activated extensor digitorum communis muscle was performed. RESULTS The SFEMG results were in the normal range in the cluster headache group and in the healthy controls. Slight neuromuscular transmission disturbances were present in patients with migraine with aura. CONCLUSIONS The abnormal neuromuscular transmission detectable by SFEMG may reflect a genetically determined dysfunction of the P/Q Ca2+ channels in a group of migraineurs with aura. Conversely, absence of neuromuscular abnormalities in cluster headache patients could be explained by different aetiology not resulting in channelopathy. Single-fibre electromyography could be a helpful tool in clinically questionable cases in differentiating between cluster headache and migraine with aura.

UI MeSH Term Description Entries
D007473 Ion Channels Gated, ion-selective glycoproteins that traverse membranes. The stimulus for ION CHANNEL GATING can be due to a variety of stimuli such as LIGANDS, a TRANSMEMBRANE POTENTIAL DIFFERENCE, mechanical deformation or through INTRACELLULAR SIGNALING PEPTIDES AND PROTEINS. Membrane Channels,Ion Channel,Ionic Channel,Ionic Channels,Membrane Channel,Channel, Ion,Channel, Ionic,Channel, Membrane,Channels, Ion,Channels, Ionic,Channels, Membrane
D008297 Male Males
D009435 Synaptic Transmission The communication from a NEURON to a target (neuron, muscle, or secretory cell) across a SYNAPSE. In chemical synaptic transmission, the presynaptic neuron releases a NEUROTRANSMITTER that diffuses across the synaptic cleft and binds to specific synaptic receptors, activating them. The activated receptors modulate specific ion channels and/or second-messenger systems in the postsynaptic cell. In electrical synaptic transmission, electrical signals are communicated as an ionic current flow across ELECTRICAL SYNAPSES. Neural Transmission,Neurotransmission,Transmission, Neural,Transmission, Synaptic
D009469 Neuromuscular Junction The synapse between a neuron and a muscle. Myoneural Junction,Nerve-Muscle Preparation,Junction, Myoneural,Junction, Neuromuscular,Junctions, Myoneural,Junctions, Neuromuscular,Myoneural Junctions,Nerve Muscle Preparation,Nerve-Muscle Preparations,Neuromuscular Junctions,Preparation, Nerve-Muscle,Preparations, Nerve-Muscle
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D003027 Cluster Headache A primary headache disorder that is characterized by severe, strictly unilateral PAIN which is orbital, supraorbital, temporal or in any combination of these sites, lasting 15-180 min. occurring 1 to 8 times a day. The attacks are associated with one or more of the following, all of which are ipsilateral: conjunctival injection, lacrimation, nasal congestion, rhinorrhea, facial SWEATING, eyelid EDEMA, and miosis. (International Classification of Headache Disorders, 2nd ed. Cephalalgia 2004: suppl 1) Ciliary Neuralgia,Headache, Cluster,Histamine Cephalgia,Horton Syndrome,Neuralgic Migraine,Atypical Cluster Headache,Chronic Cluster Headache,Cluster Headache Syndrome,Episodic Cluster Headache,Horton's Syndrome,Atypical Cluster Headaches,Cephalgia, Histamine,Cephalgias, Histamine,Chronic Cluster Headaches,Ciliary Neuralgias,Cluster Headache Syndromes,Cluster Headache, Atypical,Cluster Headache, Chronic,Cluster Headache, Episodic,Cluster Headaches,Cluster Headaches, Atypical,Cluster Headaches, Chronic,Cluster Headaches, Episodic,Episodic Cluster Headaches,Headache Syndrome, Cluster,Headache Syndromes, Cluster,Headache, Atypical Cluster,Headache, Chronic Cluster,Headache, Episodic Cluster,Headaches, Atypical Cluster,Headaches, Chronic Cluster,Headaches, Cluster,Headaches, Episodic Cluster,Histamine Cephalgias,Hortons Syndrome,Migraine, Neuralgic,Migraines, Neuralgic,Neuralgia, Ciliary,Neuralgias, Ciliary,Neuralgic Migraines,Syndrome, Cluster Headache,Syndrome, Horton,Syndrome, Horton's,Syndromes, Cluster Headache
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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