Article (Scientific journals)
A 1-month ketogenic diet in patients with migraine gives a clinical beneficial effect associated with increased latency of somatosensory thalamo-cortical activity
Abagnale, Chiara; Sebastianelli, Gabriele; Casillo, Francesco et al.
2024In Clinical Neurophysiology Practice, 9, p. 292 - 298
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Keywords :
GABA; Ketones; Latency; Oscillations; Thalamocortical network; Neurology; Neurology (clinical); Physiology (medical)
Abstract :
[en] Objective: Since the habituation deficit of evoked potentials could be related to abnormal thalamocortical drive, we searched for a modulatory effect of ketogenic diet (KD) on somatosensory-evoked thalamo-cortical activity. KD is effective in preventing migraine. Previous studies showed that KD normalises habituation of somatosensory and visual cortical evoked responses in parallel with a decrease in of migraine attack frequency. Methods: We electrically stimulated the median nerve at the wrist to record somatosensory high-frequency oscillations (HFOs) in twenty patients with episodic migraine with and without aura before and after one month of normo- (n = 9) or hypocaloric KD (n = 11). For pre-synaptic thalamocortical and post-synaptic cortical HFOs, we measured the latency of the negative oscillatory maximum, the intra-burst frequency, the number of negative peaks, and the maximum peak-to-peak amplitude. Results: In the total group of patients, the one-month KD significantly increased the latency of the negative oscillatory maximum in pre-synaptic, i.e. thalamocortical activity (t = 2.70, p = 0.015) and in post-synaptic HFOs, i.e. cortical activity (t = 3.08, p = 0.006). This effect could be attributed to hypo-caloric KD, as it was not found after normo-caloric KD. Other HFO parameters, such as amplitude, duration, or number of oscillations, were not affected. Conclusions: A 1-month hypo-caloric KD is able to delay the propagation of neuronal activity through the thalamo-cortical network. This effect does not seem to be correlated with the therapeutic efficacy of KD, but rather to low-calorie intake. Significance: Our results imply that consuming a restricted amount of calories could alter the balance between central excitation and inhibition in migraine.
Disciplines :
Neurology
Author, co-author :
Abagnale, Chiara;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Sebastianelli, Gabriele;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Casillo, Francesco;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Di Renzo, Antonio;  IRCCS – Fondazione Bietti, Rome, Italy
Parisi, Vincenzo;  IRCCS – Fondazione Bietti, Rome, Italy
Cioffi, Ettore;  IRCCS – Fondazione Bietti, Rome, Italy
Serrao, Mariano;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Schoenen, Jean  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques
Coppola, Gianluca;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Di Lorenzo, Cherubino;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
Language :
English
Title :
A 1-month ketogenic diet in patients with migraine gives a clinical beneficial effect associated with increased latency of somatosensory thalamo-cortical activity
Publication date :
2024
Journal title :
Clinical Neurophysiology Practice
ISSN :
2467-981X
Publisher :
Elsevier B.V.
Volume :
9
Pages :
292 - 298
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
The contribution of Fondazione Bietti in this paper was supported by the Italian Ministry of Health and Fondazione Roma.
Available on ORBi :
since 03 December 2024

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