Article (Scientific journals)
Central sensitization mechanisms in chronic migraine with medication overuse headache: a study of thalamocortical activation and lateral cortical inhibition.
Sebastianelli, Gabriele; Casillo, Francesco; Abagnale, Chiara et al.
2023In Cephalalgia, 43 (10), p. 3331024231202240
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Keywords :
Thalamocortical activation; habituation; high-frequency oscillations; lateral inhibition; pain control mechanisms; somatosensory evoked potentials; Humans; Central Nervous System Sensitization; Evoked Potentials, Somatosensory/physiology; Median Nerve/physiology; Migraine Disorders; Headache Disorders, Secondary; Evoked Potentials, Somatosensory; Median Nerve; Neurology (clinical)
Abstract :
[en] [en] BACKGROUND: It is unclear whether cortical hyperexcitability in chronic migraine with medication overuse headache (CM-MOH) is due to increased thalamocortical drive or aberrant cortical inhibitory mechanisms. METHODS: Somatosensory evoked potentials (SSEP) were performed by electrical stimulation of the median nerve (M), ulnar nerve (U) and simultaneous stimulation of both nerves (MU) in 27 patients with CM-MOH and, for comparison, in 23 healthy volunteers (HVs) of a comparable age distribution. We calculated the degree of cortical lateral inhibition using the formula: 100 - [MU/(M + U) × 100] and the level of thalamocortical activation by analyzing the high frequency oscillations (HFOs) embedded in parietal N20 median SSEPs. RESULTS: Compared to HV, CM-MOH patients showed higher lateral inhibition (CM-MOH 52.2% ± 15.4 vs. HV 40.4% ± 13.3; p = 0.005), which positively correlated with monthly headache days, and greater amplitude of pre-synaptic HFOs (p = 0.010) but normal post-synaptic HFOs (p = 0.122). CONCLUSION: Our findings suggest that central neuronal circuits are highly sensitized in CM-MOH patients, at both thalamocortical and cortical levels. The observed changes could be due to the combination of dysfunctional central pain control mechanisms, hypersensitivity and hyperresponsiveness directly linked to the chronic intake of acute migraine drugs.
Disciplines :
Neurology
Author, co-author :
Sebastianelli, Gabriele ;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
Casillo, Francesco ;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
Abagnale, Chiara;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
Renzo, Antonio Di;  IRCCS - Fondazione Bietti, Rome, Italy
Cioffi, Ettore;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
Parisi, Vincenzo;  IRCCS - Fondazione Bietti, Rome, Italy
Lorenzo, Cherubino Di;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
Fazio, Federica;  Specialization School in Medicine and Palliative Care, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Petricola, Fausto;  Specialization School in Medicine and Palliative Care, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Mattia, Consalvo;  Specialization School in Medicine and Palliative Care, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Serrao, Mariano;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
Schoenen, Jean  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques
Coppola, Gianluca ;  Sapienza University of Rome Polo Pontino ICOT, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy ; Specialization School in Medicine and Palliative Care, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
More authors (3 more) Less
Language :
English
Title :
Central sensitization mechanisms in chronic migraine with medication overuse headache: a study of thalamocortical activation and lateral cortical inhibition.
Publication date :
October 2023
Journal title :
Cephalalgia
ISSN :
0333-1024
eISSN :
1468-2982
Publisher :
SAGE Publications Ltd, England
Volume :
43
Issue :
10
Pages :
3331024231202240
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
The contribution of the G. B. Bietti Foundation to this paper was supported by the Italian Ministry of Health and Fondazione Roma.
Available on ORBi :
since 03 December 2024

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