101
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Möller M, Mehnert J, May A. Hypothalamic activation discriminates painful and non-painful initiation of the trigeminal autonomic reflex – an fMRI study. Cephalalgia 2019; 40:79-87. [DOI: 10.1177/0333102419868191] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background The role of the trigeminal autonomic reflex in headache syndromes, such as cluster headache, is undisputed but sparsely investigated. The aim of the present study was therefore, to identify neural correlates that play a role in the initiation of the trigeminal autonomic reflex. We further aimed to discriminate between components of the reflex that are involved in nociceptive compared to non-nociceptive processing. Methods Kinetic Oscillation Stimulation (KOS) in the left nostril was applied in order to provoke autonomic symptoms (e.g. lacrimation) via the trigeminal autonomic reflex in 26 healthy participants using functional magnetic resonance imaging. Unpleasantness and painfulness were assessed on a visual analog scale (VAS), in order to assess the quality of the stimulus (e.g. pain or no pain). Results During non-painful activation, specific regions involved in the trigeminal autonomic reflex became activated, including several brainstem nuclei but also cerebellar and bilateral insular regions. However, when the input leading to activation of the trigeminal autonomic reflex was perceived as painful, activation of the anterior hypothalamus, the locus coeruleus (LC), the ventral posteriomedial nucleus of the thalamus (VPM), as well as an activation of ipsilateral insular regions, was observed. Conclusion Our results suggest the anterior hypothalamus, besides the thalamus and specific brain stem regions, play a significant role in networks that mediate autonomic output (e.g. lacrimation) following trigeminal input, but only if the trigeminal system is activated by a stimulus comprising a painful component.
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Affiliation(s)
- Maike Möller
- Department of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany
| | - Jan Mehnert
- Department of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany
| | - Arne May
- Department of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany
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Ghorbani Z, Togha M, Rafiee P, Ahmadi ZS, Rasekh Magham R, Haghighi S, Razeghi Jahromi S, Mahmoudi M. Vitamin D in migraine headache: a comprehensive review on literature. Neurol Sci 2019; 40:2459-2477. [PMID: 31377873 DOI: 10.1007/s10072-019-04021-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 07/19/2019] [Indexed: 12/13/2022]
Abstract
INTRODUCTION As a primary headache, migraine has been established as the first leading disability cause worldwide in the subjects who aged less than 50 years. A variety of dietary supplements have been introduced for migraine complementary treatment. As an anti-inflammatory and antioxidant agent, vitamin D is one of these agents which has been of interest in recent years. Although higher prevalence of vitamin D deficiency/insufficiency has been highlighted among migraineurs compared to controls, there is not any consensus in prescribing vitamin D in clinical practice. Therefore, in the current review, in addition to observational and case-control studies, we also included clinical trials concerning the effects of vitamin D supplementation on migraine/headache. METHODS Based on a PubMed/MEDLINE and ScienceDirect database search, this review study includes published articles up to June 2019 concerning the association between migraine/headache and vitamin D status or supplementation. RESULTS The percentage of subjects with vitamin D deficiency and insufficiency among migraineurs and headache patients has been reported to vary between 45 and 100%. In a number of studies, vitamin D level was negatively correlated with frequency of headaches. The present findings show that supplementation with this vitamin in a dose of 1000-4000 IU/d could reduce the frequency of attacks in migraineurs. CONCLUSION It seems a high proportion of migraine patients might suffer from vitamin D deficiency/insufficiency. Further, the current evidence shows that in addition to routine drug therapy, vitamin D administration might reduce the frequency of attacks in migraineurs. However, these results have yet to be confirmed.
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Affiliation(s)
- Zeinab Ghorbani
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mansoureh Togha
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Pegah Rafiee
- Student Research Committee, Department and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeynab Sadat Ahmadi
- Department of Nutrition, School of Health, Iran University of Medical Sciences, Tehran, Iran
| | - Reyhaneh Rasekh Magham
- Department of Nutrition, Faculty of Medical Sciences, Science & Research Branch, Islamic Azad University, Tehran, Iran
| | - Samane Haghighi
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Soodeh Razeghi Jahromi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Mahmoudi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
- Pediatric Gastroenterology and Hepatology Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
- Dietitians and Nutrition Experts Team (DiNET), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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103
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Henssen DJHA, Derks B, van Doorn M, Verhoogt N, Van Cappellen van Walsum AM, Staats P, Vissers K. Vagus nerve stimulation for primary headache disorders: An anatomical review to explain a clinical phenomenon. Cephalalgia 2019; 39:1180-1194. [PMID: 30786731 PMCID: PMC6643160 DOI: 10.1177/0333102419833076] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/11/2018] [Accepted: 12/26/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Non-invasive stimulation of the vagus nerve has been proposed as a new neuromodulation therapy to treat primary headache disorders, as the vagus nerve is hypothesized to modulate the headache pain pathways in the brain. Vagus nerve stimulation can be performed by placing an electrode on the ear to stimulate the tragus nerve, which contains about 1% of the vagus fibers. Non-invasive vagus nerve stimulation (nVNS) conventionally refers to stimulation of the cervical branch of the vagus nerve, which is made up entirely of vagal nerve fibers. While used interchangeably, most of the research to date has been performed with nVNS or an implanted vagus nerve stimulation device. However, the exact mechanism of action of nVNS remains hypothetical and no clear overview of the effectiveness of nVNS in primary headache disorders is available. METHODS In the present study, the clinical trials that investigated the effectiveness, tolerability and safety of nVNS in primary headache disorders were systematically reviewed. The second part of this study reviewed the central connections of the vagus nerve. Papers on the clinical use of nVNS and the anatomical investigations were included based on predefined criteria, evaluated, and results were reported in a narrative way. RESULTS The first part of this review shows that nVNS in primary headache disorders is moderately effective, safe and well-tolerated. Regarding the anatomical review, it was reported that fibers from the vagus nerve intertwine with fibers from the trigeminal, facial, glossopharyngeal and hypoglossal nerves, mostly in the trigeminal spinal tract. Second, the four nuclei of the vagus nerve (nuclei of the solitary tract, nucleus ambiguus, spinal nucleus of the trigeminal nerve and dorsal motor nucleus (DMX)) show extensive interconnections. Third, the efferents from the vagal nuclei that receive sensory and visceral input (i.e. nuclei of the solitary tract and spinal nucleus of the trigeminal nerve) mainly course towards the main parts of the neural pain matrix directly or indirectly via other vagal nuclei. CONCLUSION The moderate effectiveness of nVNS in treating primary headache disorders can possibly be linked to the connections between the trigeminal and vagal systems as described in animals.
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Affiliation(s)
- Dylan Jozef Hendrik Augustinus Henssen
- Department of Anatomy, Donders Institute
for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the
Netherlands
- Department of Neurosurgery, Radboud
University Medical Center, Nijmegen, the Netherlands
| | - Berend Derks
- Department of Anatomy, Donders Institute
for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the
Netherlands
| | - Mats van Doorn
- Department of Anatomy, Donders Institute
for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the
Netherlands
| | - Niels Verhoogt
- Department of Anatomy, Donders Institute
for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the
Netherlands
| | | | | | - Kris Vissers
- Department of Anesthesiology, Pain and
Palliative Medicine, Radboud University Medical Center, Nijmegen, the
Netherlands
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104
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Chen Z, Chen X, Liu M, Ma L, Yu S. Volume of Hypothalamus as a Diagnostic Biomarker of Chronic Migraine. Front Neurol 2019; 10:606. [PMID: 31244765 PMCID: PMC6563769 DOI: 10.3389/fneur.2019.00606] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/22/2019] [Indexed: 12/04/2022] Open
Abstract
It is believed than hypothalamus (HTH) might be involved in generation of migraine, and evidence from high resolution fMRI reported that the more anterior part of HTH seemed to play an important role in migraine chronification. The current study was aimed to identify the alteration of morphology and resting-state functional connectivity (FC) of the hypothalamus (HTH) in interictal episodic migraine (EM) and chronic migraine (CM). High-resolution structural and resting-state functional magnetic resonance images were acquired in 18 EM patients, 16 CM patients, and 21 normal controls (NC). The volume of HTH was calculated and voxel-based morphometry (VBM) was performed over the whole HTH. Receiver operating characteristics (ROC) curve analysis was applied to evaluate the diagnostic efficacy of HTH volume. Correlation analyses with clinical variables were performed and FC maps were generated for positive HTH regions according to VBM comparison. The volume of the HTH significantly decreased in both EM and CM patients compared with NC. The cut-off volume of HTH as 1.429 ml had a good diagnostic accuracy for CM with sensitivity of 81.25% and specificity of 100%. VBM analyses identified volume reduction of posterior HTH in EM vs. NC which was negatively correlated with headache frequency. The posterior HTH presented decreased FC with the left inferior temporal gyrus (Brodmann area 20) in EM. Decreased volume of anterior HTH was identified in CM vs. NC and CM vs. EM which was positively correlated with headache frequency in CM. The anterior HTH presented increased FC with the right anterior orbital gyrus (AOrG) (Brodmann area 11) in CM compared with NC and increased FC with the right medial orbital gyrus (MOrG) (Brodmann area 11) in CM compared with EM. Our study provided evidence of structural plasticity and FC changes of HTH in the pathogensis of migraine generation and chronification, supporting potential therapeutic target toward the HTH and its peptide.
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Affiliation(s)
- Zhiye Chen
- Department of Radiology, Chinese PLA General Hospital, Beijing, China.,Department of Neurology, Chinese PLA General Hospital, Beijing, China.,Department of Radiology, Hainan Hospital of Chinese PLA General Hospital, Sanya, China
| | - Xiaoyan Chen
- Department of Neurology, Chinese PLA General Hospital, Beijing, China
| | - Mengqi Liu
- Department of Radiology, Chinese PLA General Hospital, Beijing, China.,Department of Radiology, Hainan Hospital of Chinese PLA General Hospital, Sanya, China
| | - Lin Ma
- Department of Radiology, Chinese PLA General Hospital, Beijing, China
| | - Shengyuan Yu
- Department of Neurology, Chinese PLA General Hospital, Beijing, China
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The unique role of the trigeminal autonomic reflex and its modulation in primary headache disorders. Curr Opin Neurol 2019; 32:438-442. [DOI: 10.1097/wco.0000000000000691] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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106
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Abstract
Migraine is a strongly disabling disease characterized by a unilateral throbbing headache lasting for up to 72 h for each individual attack. There have been many theories on the pathophysiology of migraine throughout the years. Currently, the neurovascular theory dominates, suggesting clear involvement of the trigeminovascular system. The most recent data show that a migraine attack most likely originates in the hypothalamus and activates the trigeminal nucleus caudalis (TNC). Although the mechanisms are unknown, activation of the TNC leads to peripheral release of calcitonin gene-related protein (CGRP), most likely from C-fibers. During the past year monoclonal antibodies against CGRP or the CGRP receptor have emerged as the most promising targets for migraine therapy, and at the same time established the strong involvement of CGRP in the pathophysiology of migraine. The viewpoint presented here focuses further on the activation of the CGRP receptor on the sensory Aδ-fiber, leading to the sensation of pain. The CGRP receptor activates adenylate cyclase, which leads to an increase in cyclic adenosine monophosphate (cAMP). We hypothesize that cAMP activates the hyperpolarization-activated cyclic nucleotide-gated (HCN) channels, triggering an action potential sensed as pain. The mechanisms behind migraine pain on a molecular level, particularly their importance to cAMP, provide clues to potential new anti-migraine targets. In this article we focus on the development of targets related to the CGRP system, and further include novel targets such as the pituitary adenylate cyclase-activating peptide (PACAP) system, the serotonin 5-HT1F receptor, purinergic receptors, HCN channels, adenosine triphosphate-sensitive potassium channels (KATP), and the glutaminergic system.
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107
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Abstract
OBJECTIVE The goal of this narrative review is to provide an overview of migraine pathophysiology, with an emphasis on the role of calcitonin gene-related peptide (CGRP) within the context of the trigeminovascular system. BACKGROUND Migraine is a prevalent and disabling neurological disease that is characterized in part by intense, throbbing, and unilateral headaches. Despite recent advances in understanding its pathophysiology, migraine still represents an unmet medical need, as it is often underrecognized and undertreated. Although CGRP has been known to play a pivotal role in migraine for the last 2 decades, this has now received more interest spurred by the early clinical successes of drugs that block CGRP signaling in the trigeminovascular system. DESIGN This narrative review presents an update on the role of CGRP within the trigeminovascular system. PubMed searches were used to find recent (ie, 2016 to November 2018) published articles presenting new study results. Review articles are also included not as primary references but to bring these to the attention of the reader. Original research is referenced in describing the core of the narrative, and review articles are used to support ancillary points. RESULTS The trigeminal ganglion neurons provide the connection between the periphery, stemming from the interface between the primary afferent fibers of the trigeminal ganglion and the meningeal vasculature and the central terminals in the trigeminal nucleus caudalis. The neuropeptide CGRP is abundant in trigeminal ganglion neurons, and is released from the peripheral nerve and central nerve terminals as well as being secreted within the trigeminal ganglion. Release of CGRP from the peripheral terminals initiates a cascade of events that include increased synthesis of nitric oxide and sensitization of the trigeminal nerves. Secreted CGRP in the trigeminal ganglion interacts with adjacent neurons and satellite glial cells to perpetuate peripheral sensitization, and can drive central sensitization of the second-order neurons. A shift in central sensitization from activity-dependent to activity-independent central sensitization may indicate a mechanism driving the progression of episodic migraine to chronic migraine. The pathophysiology of cluster headache is much more obscure than that of migraine, but emerging evidence suggests that it may also involve hypersensitivity of the trigeminovascular system. Ongoing clinical studies with therapies targeted at CGRP will provide additional, valuable insights into the pathophysiology of this disorder. CONCLUSIONS CGRP plays an essential role in the pathophysiology of migraine. Treatments that interfere with the functioning of CGRP in the peripheral trigeminal system are effective against migraine. Blocking sensitization of the trigeminal nerve by attenuating CGRP activity in the periphery may be sufficient to block a migraine attack. Additionally, the potential exists that this therapeutic strategy may also alleviate cluster headache as well.
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Affiliation(s)
- Smriti Iyengar
- Eli Lilly and CompanyIndianapolisINUSA
- Present address:
Indiana University School of MedicineIndianapolisINUSA
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108
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Ellingson BM, Hesterman C, Johnston M, Dudeck NR, Charles AC, Villablanca JP. Advanced Imaging in the Evaluation of Migraine Headaches. Neuroimaging Clin N Am 2019; 29:301-324. [PMID: 30926119 PMCID: PMC8765285 DOI: 10.1016/j.nic.2019.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The use of advanced imaging in routine diagnostic practice appears to provide only limited value in patients with migraine who have not experienced recent changes in headache characteristics or symptoms. However, advanced imaging may have potential for studying the biological manifestations and pathophysiology of migraine headaches. Migraine with aura appears to have characteristic spatiotemporal changes in structural anatomy, function, hemodynamics, metabolism, and biochemistry, whereas migraine without aura produces more subtle and complex changes. Large, controlled, multicenter imaging-based observational trials are needed to confirm the anecdotal evidence in the literature and test the scientific hypotheses thought to underscore migraine pathophysiology.
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Affiliation(s)
- Benjamin M Ellingson
- UCLA Center for Computer Vision and Imaging Biomarkers, David Geffen School of Medicine, University of California Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA; Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA; Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, 760 Westwood Plaza, Los Angeles, CA 90095, USA; UCLA Brain Research Institute (BRI), David Geffen School of Medicine, University of California Los Angeles, 695 Charles E Young Dr S, Los Angeles, CA 90095, USA; UCLA Brain Tumor Imaging Laboratory (BTIL), Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA; UCLA Brain Tumor Imaging Laboratory (BTIL), Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA.
| | - Chelsea Hesterman
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, 710 Westwood Plaza, Los Angeles, CA 90095-1769, USA
| | - Mollie Johnston
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, 710 Westwood Plaza, Los Angeles, CA 90095-1769, USA
| | - Nicholas R Dudeck
- UCLA Center for Computer Vision and Imaging Biomarkers, David Geffen School of Medicine, University of California Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA; Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA
| | - Andrew C Charles
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, 710 Westwood Plaza, Los Angeles, CA 90095-1769, USA
| | - Juan Pablo Villablanca
- Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, 924 Westwood Boulevard, Suite 615, Los Angeles, CA 90024, USA
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Sosanya NM, Garza TH, Stacey W, Crimmins SL, Christy RJ, Cheppudira BP. Involvement of brain-derived neurotrophic factor (BDNF) in chronic intermittent stress-induced enhanced mechanical allodynia in a rat model of burn pain. BMC Neurosci 2019; 20:17. [PMID: 31014242 PMCID: PMC6480655 DOI: 10.1186/s12868-019-0500-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 04/10/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Reports show that stressful events before injury exacerbates post-injury pain. The mechanism underlying stress-induced heightened thermal pain is unclear. Here, we examined the effects of chronic intermittent stress (CIS) on nociceptive behaviors and brain-derived nerve growth factor (BDNF) system in the prefrontal cortex (PFC) and hypothalamus of rats with and without thermal injury. RESULTS Unstressed rats showed transient mechanical allodynia during stress exposure. Stressed rats with thermal injury displayed persistent exacerbated mechanical allodynia (P < 0.001). Increased expression of BDNF mRNA in the PFC (P < 0.05), and elevated TrkB and p-TrkB (P < 0.05) protein levels in the hypothalamus were observed in stressed rats with thermal injury but not in stressed or thermally injured rats alone. Furthermore, administration of CTX-B significantly reduced stress-induced exacerbated mechanical allodynia in thermally injured rats (P < 0.001). CONCLUSION These results indicate that BDNF-TrkB signaling in PFC and hypothalamus contributes to CIS-induced exacerbated mechanical allodynia in thermal injury state.
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Affiliation(s)
- Natasha M Sosanya
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Thomas H Garza
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Winfred Stacey
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Stephen L Crimmins
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Robert J Christy
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Bopaiah P Cheppudira
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA.
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Abstract
Primary headaches are one of the most prevalent neurological disorders and can occur during a wide range of lifespan. Primary headaches, especially migraine, are cyclic disorders with a complex sequence of symptoms within every headache attack. There is no systematic review of whether these symptoms changes during lifespan. Indeed, the clinical presentation of migraine shows an age-dependent change with a significantly shorter duration of the attacks and occurrence of different paroxysmal symptoms, such as vomiting, abdominal pain or vertigo, in childhood and, in contrast, largely an absence of autonomic signs and a more often bilateral headache in the elderly. The age-dependent differences in the clinical presentation are less distinct in cluster headache and, especially, in tension-type headache. The differences in the clinical presentation are in agreement with the idea that the connectivity of hypothalamic areas with different brainstem areas, especially the central parasympathetic areas, is important for the clinical manifestation of migraine, as well as, the change during lifespan.
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Affiliation(s)
- Andreas Straube
- Department of Neurology, University Hospital LMU, Ludwig-Maximilians-University, 81377, Munich, Germany.
| | - Anna Andreou
- Headache Research, Wolfson CARD, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.,The Headache Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK
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111
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Mehnert J, Bader D, Nolte G, May A. Visual input drives increased occipital responsiveness and harmonized oscillations in multiple cortical areas in migraineurs. NEUROIMAGE-CLINICAL 2019; 23:101815. [PMID: 30974326 PMCID: PMC6458451 DOI: 10.1016/j.nicl.2019.101815] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 12/12/2022]
Abstract
Migraineurs are hypersensitive for most sensory domains like visual, auditory or somatosensory processing even outside of attacks. This behavioral peculiarity is mirrored by findings of cortical hyper-responsivity already in the interictal state. Using repetitive visual stimulation to elicit steady state visually evoked potentials (SSVEP) in 30 interictal episodic migraineurs and 30 controls we show hyper-responsivity of the visual cortex in the migraineurs. Additionally, the occipital regions were remarkably stronger coupled to the temporal, premotor and the anterior cingulate cortex than in headache free controls. These data suggest harmonized oscillations of different cortical areas as a response to visual input which might be driven by the cuneus. Furthermore, the increased coupling is modulated by the current state of the migraine cycle as the coupling was significantly stronger in patients with longer interictal periods. Migraineurs visual cortex compared to controls is hyper-responsiveness in response to repetitive visual stimulation. The hyper-responsiveness is stronger coupled to temporal, premotor and anterior cingulate cortex than in controls. This increased coupling is modulated by the current state of the migraine cycle. Our data suggest that visual input in migraineurs leads to harmonized oscillations of multiple cortical areas.
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Affiliation(s)
- Jan Mehnert
- Department of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany
| | - Daniel Bader
- Department of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany
| | - Guido Nolte
- Department of Neurophysiology and Pathophysiology, University Medical Center Eppendorf, Hamburg, Germany
| | - Arne May
- Department of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany.
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112
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Abstract
BACKGROUND Cluster headache is the most severe primary headache disorder. A genetic basis has long been suggested by family and twin studies; however, little is understood about the genetic variants that contribute to cluster headache susceptibility. METHODS We conducted a literature search of the MEDLINE database using the PubMed search engine to identify all human genetic studies for cluster headache. In this article we provide a review of those genetic studies, along with an overview of the pathophysiology of cluster headache and a brief review of migraine genetics, which have both been significant drivers of cluster headache candidate gene selection. RESULTS The investigation of cluster headache genetic etiology has been dominated by candidate gene studies. Candidate selection has largely been driven by the pathophysiology, such as the striking rhythmic nature of the attacks, which spurred close examination of the circadian rhythm genes CLOCK and HCRTR2. More recently, unbiased genetic approaches such as genome-wide association studies (GWAS) have yielded new genetic avenues of interest including ADCYAP1R1 and MME. CONCLUSIONS The majority of candidate genes studied for cluster headache suffer from poor reproducibility. Broader genetic interrogation through larger unbiased GWAS, exome, and whole genome studies may provide more robust candidates, and in turn provide a clearer understanding of the causes of cluster headache.
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Affiliation(s)
| | | | - Nunu Lund
- 2 Danish Headache Center, Department of Neurology, University of Copenhagen, Denmark
| | - Rigmor Jensen
- 2 Danish Headache Center, Department of Neurology, University of Copenhagen, Denmark
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113
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Lee MJ, Park BY, Cho S, Kim ST, Park H, Chung CS. Increased connectivity of pain matrix in chronic migraine: a resting-state functional MRI study. J Headache Pain 2019; 20:29. [PMID: 30909865 PMCID: PMC6734233 DOI: 10.1186/s10194-019-0986-z] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 03/20/2019] [Indexed: 01/03/2023] Open
Abstract
Objective To investigate the whole-brain resting-state functional connectivity in patients with chronic migraine (CM) using a data-driven method. Methods We prospectively recruited patients with either episodic migraine (EM) or CM aged 18–60 years who visited the headache clinic of the Samsung Medical Center from July 2016 to December 2017. All patients underwent 3 T MRI using an identical scanner. Patients were considered interictal if they did not have a migraine headache at the day and ± 1 days of functional MRI acquisition. Using the group-independent component analysis (ICA), connectivity analysis with a weighted and undirected network model was performed. The between-group differences in degree centrality (DC) values were assessed using 5000 permutation tests corrected with false discovery rate (FDR). Results A total of 62 patients (44 EM and 18 CM) were enrolled in this study. Among the seven functionally interpretable spatially independent components (ICs) identified, only one IC, interpreted as the pain matrix, showed a significant between-group difference in DC (CM > EM, p = 0.046). This association remained significant after adjustment for age, sex, migraine with aura (MWA), allodynia, depression, and anxiety (p = 0.038). The pain matrix was functionally correlated with the hypothalamus (p = 0.040, EM > CM) and dorsal raphe nucleus (p = 0.039, CM > EM) with different levels of strength in EM and CM. Conclusion CM patients have a stronger connectivity in the pain matrix than do EM patients. Functional alteration of the pain network might play a role in migraine chronification.
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Affiliation(s)
- Mi Ji Lee
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea.,Neuroscience Center, Samsung Medical Center, Seoul, South Korea
| | - Bo-Yong Park
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea.,Center for Neuroscience Imaging Research, Institute for Basic Science, Suwon, South Korea
| | - Soohyun Cho
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea
| | - Sung Tae Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hyunjin Park
- Center for Neuroscience Imaging Research, Institute for Basic Science, Suwon, South Korea.,School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Chin-Sang Chung
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea. .,Neuroscience Center, Samsung Medical Center, Seoul, South Korea.
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Lerebours F, Boulanouar K, Barège M, Denuelle M, Bonneville F, Payoux P, Larrue V, Fabre N. Functional connectivity of hypothalamus in chronic migraine with medication overuse. Cephalalgia 2019; 39:892-899. [PMID: 30836766 DOI: 10.1177/0333102419833087] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To investigate the functional connectivity of the hypothalamus in chronic migraine compared to interictal episodic migraine in order to improve our understanding of migraine chronification. METHODS Using task-free fMRI and ROI-to-ROI analysis, we compared anterior hypothalamus intrinsic connectivity with the spinal trigeminal nucleus in patients with chronic migraine (n = 25) to age- and sex-matched patients with episodic migraine in the interictal phase (n = 22). We also conducted a seed-to-voxel analysis with anterior hypothalamus as a seed. RESULTS All patients with chronic migraine had medication overuse. We found a significant connectivity (T = 2.08, p = 0.024) between anterior hypothalamus and spinal trigeminal nucleus in the chronic group, whereas these two regions were not connected in the episodic group. The strength of connectivity was not correlated with pain intensity (rho: 0.09, p = 0.655). In the seed-to-voxel analysis, three regions were more connected with the anterior hypothalamus in the chronic group: The spinal trigeminal nuclei (MNI coordinate x = 2, y = -44, z = -62), the right dorsal anterior insula (MNI coordinate x = 10, y = 10, z = 18), and the right caudate (MNI coordinate x = 12, y = 28, z = 6). However, these correlations were no longer significant after whole brain FWE correction. CONCLUSION An increased functional connectivity between the anterior hypothalamus and the spinal trigeminal nucleus, as previously reported in preictal episodic migraine, was demonstrated in chronic migraine with medication overuse. This finding confirms a major role of the anterior hypothalamus in migraine and suggests that chronic migraineurs are locked in the preictal phase.
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Affiliation(s)
- Fleur Lerebours
- 1 Department of Neurology, University Hospital of Toulouse, Toulouse, France
| | | | - Michèle Barège
- 1 Department of Neurology, University Hospital of Toulouse, Toulouse, France
| | - Marie Denuelle
- 1 Department of Neurology, University Hospital of Toulouse, Toulouse, France
| | - Fabrice Bonneville
- 3 Department of Radiology, University Hospital of Toulouse, Toulouse, France
| | - Pierre Payoux
- 2 UMR 1214, Toulouse NeuroImaging center, Toulouse, France
| | - Vincent Larrue
- 1 Department of Neurology, University Hospital of Toulouse, Toulouse, France
| | - Nelly Fabre
- 1 Department of Neurology, University Hospital of Toulouse, Toulouse, France
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Li C, Liu S, Lu X, Tao F. Role of Descending Dopaminergic Pathways in Pain Modulation. Curr Neuropharmacol 2019; 17:1176-1182. [PMID: 31182003 PMCID: PMC7057207 DOI: 10.2174/1570159x17666190430102531] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/19/2019] [Accepted: 04/11/2019] [Indexed: 12/24/2022] Open
Abstract
Pain, especially when chronic, is a common reason patients seek medical care and it affects the quality of life and well-being of the patients. Unfortunately, currently available therapies for chronic pain are often inadequate because the neurobiological basis of such pain is still not fully understood. Although dopamine has been known as a neurotransmitter to mediate reward and motivation, accumulating evidence has shown that dopamine systems in the brain are also involved in the central regulation of chronic pain. Most importantly, descending dopaminergic pathways play an important role in pain modulation. In this review, we discuss dopamine receptors, dopaminergic systems in the brain, and the role of descending dopaminergic pathways in the modulation of different types of pain.
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Affiliation(s)
| | | | - Xihua Lu
- Address correspondence to these authors at the Feng Tao, 3302 Gaston Ave., Dallas, TX 75246, USA; Tel: 1-214-828-8272; E-mail: and Xihua Lu, 127 Dongming Road,Zhengzhou, Henan 450008, China; Tel: 86-371-6558-7320; E-mail:
| | - Feng Tao
- Address correspondence to these authors at the Feng Tao, 3302 Gaston Ave., Dallas, TX 75246, USA; Tel: 1-214-828-8272; E-mail: and Xihua Lu, 127 Dongming Road,Zhengzhou, Henan 450008, China; Tel: 86-371-6558-7320; E-mail:
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Affiliation(s)
- Kuan-Po Peng
- Department of Systems Neuroscience, University Medical Center Hamburg Eppendorf, Hamburg, Germany
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Changes in Brainstem Pain Modulation Circuitry Function over the Migraine Cycle. J Neurosci 2018; 38:10479-10488. [PMID: 30341182 DOI: 10.1523/jneurosci.1088-18.2018] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 09/23/2018] [Accepted: 09/25/2018] [Indexed: 02/06/2023] Open
Abstract
The neural mechanism responsible for migraine remains unclear. While an external trigger has been proposed to initiate a migraine, it has also been proposed that changes in brainstem function are critical for migraine headache initiation and maintenance. Although the idea of altered brainstem function has some indirect support, no study has directly measured brainstem pain modulation circuitry function in migraineurs particularly immediately before a migraine. In male and female humans, we performed fMRI in 31 controls and 31 migraineurs at various times in their migraine cycle. We measured brainstem function during noxious orofacial stimulation and assessed resting-state functional connectivity. First, we found that, in individual migraineurs, pain sensitivity increased over the interictal period but then dramatically decreased immediately before a migraine. Second, despite overall similar pain intensity ratings between groups, in the period immediately before a migraine, compared with controls and other migraine phases, migraineurs displayed greater activation in the spinal trigeminal nucleus during noxious orofacial stimulation and reduced functional connectivity of this region with the rostral ventromedial medulla. Additionally, during the interictal phase, migraineurs displayed reduced activation of the midbrain periaqueductal gray matter and enhanced periaqueductal gray connectivity with the rostral ventromedial medulla. These data support the hypothesis that brainstem sensitivity fluctuates throughout the migraine cycle. However, in contrast to the prevailing hypothesis, our data suggest that, immediately before a migraine attack, endogenous analgesic mechanisms are enhanced and incoming noxious inputs are less likely to reach higher brain centers.SIGNIFICANCE STATEMENT It has been hypothesized that alterations in brainstem function are critical for the generation of migraine. In particular, modulation of orofacial pain pathways by brainstem circuits alters the propensity of external triggers or ongoing spontaneous activity to evoke a migraine attack. We sought to obtain empirical evidence to support this theory. Contrary to our hypothesis, we found that pain sensitivity decreased immediately before a migraine, and this was coupled with increased sensitivity of the spinal trigeminal nucleus to noxious stimuli. We also found that resting connectivity within endogenous pain modulation circuitry alters across the migraine cycle. These changes may reflect enhanced and diminished neural tone states proposed to be critical for the generation of a migraine and underlie cyclic fluctuations in migraine brainstem sensitivity.
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Vollesen AL, Benemei S, Cortese F, Labastida-Ramírez A, Marchese F, Pellesi L, Romoli M, Ashina M, Lampl C. Migraine and cluster headache - the common link. J Headache Pain 2018; 19:89. [PMID: 30242519 PMCID: PMC6755613 DOI: 10.1186/s10194-018-0909-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/20/2018] [Indexed: 01/07/2023] Open
Abstract
Although clinically distinguishable, migraine and cluster headache share prominent features such as unilateral pain, common pharmacological triggers such glyceryl trinitrate, histamine, calcitonin gene-related peptide (CGRP) and response to triptans and neuromodulation. Recent data also suggest efficacy of anti CGRP monoclonal antibodies in both migraine and cluster headache. While exact mechanisms behind both disorders remain to be fully understood, the trigeminovascular system represents one possible common pathophysiological pathway and network of both disorders. Here, we review past and current literature shedding light on similarities and differences in phenotype, heritability, pathophysiology, imaging findings and treatment options of migraine and cluster headache. A continued focus on their shared pathophysiological pathways may be important in paving future treatment avenues that could benefit both migraine and cluster headache patients.
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Affiliation(s)
- Anne Luise Vollesen
- Danish Headache Center and Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Silvia Benemei
- Health Sciences Department, University of Florence and Headache Centre, Careggi University Hospital, Florence, Italy
| | - Francesca Cortese
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza, University of Rome, Polo Pontino, Latina, Italy
| | - Alejandro Labastida-Ramírez
- Dep Internal Medicine, Division of Vascular Pharmacology, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Lanfranco Pellesi
- Medical Toxicology, Headache and Drug Abuse Center, University of Modena and Reggio Emilia, Modena, Italy
| | - Michele Romoli
- Neurology Clinic, University of Perugia - S.M. Misericordiae Hospital, Perugia, Italy
| | - Messoud Ashina
- Danish Headache Center and Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christian Lampl
- Department of Neurogeriatric Medicine, Headache Medical Center Linz, Ordensklinikum Linz Barmherzige Schwestern, Seilerstaette 4, 4010 Linz, Austria
| | - on behalf of the School of Advanced Studies of the European Headache Federation (EHF-SAS)
- Danish Headache Center and Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Health Sciences Department, University of Florence and Headache Centre, Careggi University Hospital, Florence, Italy
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza, University of Rome, Polo Pontino, Latina, Italy
- Dep Internal Medicine, Division of Vascular Pharmacology, Erasmus Medical Center, Rotterdam, The Netherlands
- Child Neuropsichiatry Unit, University of Palermo, Palermo, Italy
- Medical Toxicology, Headache and Drug Abuse Center, University of Modena and Reggio Emilia, Modena, Italy
- Neurology Clinic, University of Perugia - S.M. Misericordiae Hospital, Perugia, Italy
- Department of Neurogeriatric Medicine, Headache Medical Center Linz, Ordensklinikum Linz Barmherzige Schwestern, Seilerstaette 4, 4010 Linz, Austria
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Kim J, Cho SJ, Kim WJ, Yang KI, Yun CH, Chu MK. Impact of migraine on the clinical presentation of insomnia: a population-based study. J Headache Pain 2018; 19:86. [PMID: 30218221 PMCID: PMC6755581 DOI: 10.1186/s10194-018-0916-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/07/2018] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Insomnia and migraine are closely related; insomnia aggravates migraine symptoms. This study was conducted to investigate the impact of migraine on the clinical presentation of insomnia symptoms. METHODS The data of the Korean Headache-Sleep Study (KHSS) were used in the present study. The KHSS is a nation-wide cross-sectional population-based survey regarding headache and sleep in Korean adults aged 19 to 69 years. If a participant's Insomnia Severity Index (ISI) score ≥ 10, she/he was classified as having insomnia. The clinical presentation of insomnia symptoms was assessed using total and subcomponent scores of the ISI. RESULTS Of 2695 participants, 290 (10.8%) and 143 (5.3%) individuals were assigned as having insomnia and migraine, respectively. The proportions of migraine (12.8% vs. 4.4%, p < 0.001) and non-migraine headache (59.0% vs. 39.9%, p < 0.001) were higher among individuals with insomnia compared to those without insomnia. Among participants with insomnia, total ISI scores were not significantly different among participants with migraine, non-migraine, and non-headache [median and interquartile range: 13.0 (11.0-17.5) vs. 13.0 (11.0-17.5) vs. 12.0 (11.0-16.0), p = 0.245]. ISI scores for noticeability of sleep problems to others were significantly higher among participants with migraine [3.0 (2.0-4.0) vs. 2.0 (2.0-3.0), p = 0.011] and non-migraine headache [3.0 (2.0-4.0) vs. 2.0 (2.0-3.0), p = 0.001] compared to those without headache history. Other ISI subcomponent scores did not significantly differ between headache status groups. CONCLUSIONS Participants with insomnia had an increased risk of migraine and non-migraine headache compared to those without insomnia. Among participants with insomnia, overall insomnia severity was not significantly influenced by the headache status.
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Affiliation(s)
- Jiyoung Kim
- Department of Neurology, BioMedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Soo-Jin Cho
- Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, South Korea
| | - Won-Joo Kim
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Kwang Ik Yang
- Sleep Disorders Center, Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, South Korea
| | - Chang-Ho Yun
- Clinical Neuroscience Center, Department of Neurology, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Min Kyung Chu
- Department of Neurology, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul, Republic of Korea
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Park SP, Seo JG. Aggression and its association with suicidality in migraine patients: a case-control study. J Headache Pain 2018; 19:67. [PMID: 30109431 PMCID: PMC6091355 DOI: 10.1186/s10194-018-0903-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 08/05/2018] [Indexed: 01/03/2023] Open
Abstract
Background To identify aggression and its association with suicidality in migraine patients. Methods We enrolled 144 migraine patients who made their first visit to our headache clinic. We collected data regarding their clinical characteristics and the patients completes the Aggression Questionnaire (AQ) and other questionnaires. We also interviewed patients with the Mini International Neuropsychiatric Interview—Plus Version 5.0.0 (MINI) to identify their suicidality. The degree of aggression in migraine patients was compared to the degree of aggression in healthy controls. Major determinants for aggression and its association with suicidality were also examined. Results The overall AQ score and anger and hostility subscale scores were higher in migraine patients than controls. For migraine chronicity, patients with chronic migraine (CM) had a higher overall AQ score and physical aggression, anger, and hostility subscale scores than controls. On the other hand, all AQ scores in patients with episodic migraine were not different from the scores of the controls. Although several factors were associated with the overall AQ score, major determinants were anxiety (ß = 0.395, p < 0.001), headache intensity (ß = 0.180, p = 0.016), and CM (ß = − 0.165, p = 0.037). Patients who had suicidality based on the MINI showed a higher overall AQ score than patients without suicidality (p < 0.001). Conclusions Aggression is likely to be a common feature in CM. Comorbid aggression may help to identify suicidality in migraine patients.
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Affiliation(s)
- Sung-Pa Park
- Department of Neurology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
| | - Jong-Geun Seo
- Department of Neurology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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Russo A, Silvestro M, Tessitore A, Tedeschi G. Advances in migraine neuroimaging and clinical utility: from the MRI to the bedside. Expert Rev Neurother 2018; 18:533-544. [PMID: 29883214 DOI: 10.1080/14737175.2018.1486708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION In current migraine clinical practice, no specific diagnostic investigations are available and therefore the diagnosis is an eminently clinical process where instrumental examinations may have a part to exclude possible causes of secondary headaches. While migraine clinical phenotype has been widely characterized, migraine pathophysiology has still a gap that might be partly bridged by structural and functional neuroimaging investigations. Areas covered: This article aims to review the recent advances in functional neuroimaging, the consequent progress in the knowledge of migraine pathophysiology and their putative application and impact in the clinical setting. A comprehensive review was conducted of PubMed citations by entering the key word 'MRI' combined with 'migraine' AND/OR 'headache.' Other key words included 'gray matter' OR 'white matter,' 'structural' OR 'functional.' The only restriction was English-language publication. The abstracts of all articles meeting these criteria were reviewed, and full texts were examined for relevant references. Expert commentary: Advanced magnetic resonance imaging (MRI) techniques are tremendously improving our knowledge about brain abnormalities in migraine patients. However, advanced MRI could nowadays overcome the limits linked to the clinicians' judgment through the identification of objectively measurable neuroimaging findings (quantitative biomarkers) concerning the diagnosis, the prognosis and 'tailored' therapeutic-care pathways.
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Affiliation(s)
- Antonio Russo
- a Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences , University of Campania "Luigi Vanvitelli" , Naples , Italy.,b MRI Research Center SUN-FISM , University of Campania "Luigi Vanvitelli" , Naples , Italy
| | - Marcello Silvestro
- a Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences , University of Campania "Luigi Vanvitelli" , Naples , Italy
| | - Alessandro Tessitore
- a Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences , University of Campania "Luigi Vanvitelli" , Naples , Italy.,b MRI Research Center SUN-FISM , University of Campania "Luigi Vanvitelli" , Naples , Italy
| | - Gioacchino Tedeschi
- a Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences , University of Campania "Luigi Vanvitelli" , Naples , Italy.,b MRI Research Center SUN-FISM , University of Campania "Luigi Vanvitelli" , Naples , Italy.,c Institute for Diagnosis and Care ''Hermitage Capodimonte'', Neurology Department , Naples , Italy
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Abstract
PURPOSE OF REVIEW Chronic migraine (CM) is a recalcitrant subtype of migraine which causes high degrees of disability, poor treatment responses, and frequent recurrences in sufferers. However, the pathophysiological mechanisms underlying the development and chronification of migraine attacks remain incompletely understood. A validated animal model could help to decipher the pathogenic mechanism of the disease, facilitating the development of possible therapeutic strategies for CM. In this review, we aimed to summarize current animal models of CM and discuss the validity of these models. RECENT FINDINGS Several methods have been available to induce recurrent headache-like behaviors or biochemical changes in rodents, including repeated dural application of inflammatory soup, chronic systemic infusion of nitroglycerin, repeated administration of acute migraine abortive treatment to simulate medication overuse headache, or genetic modification. These models exhibit some features that are believed to be associated with migraine; however, none of the model can recapitulate all the clinical phenotypes found in humans and each has its own weakness. The complex features of CM increase the difficulty of constructing a proper animal model. Nonetheless, currently available models are valid to certain degrees. Future directions might consider simulating the spontaneity and chronicity of migraine by combining known genetic substrates and allostatic loads into the same model.
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Schulte LH, Allers A, May A. Visual stimulation leads to activation of the nociceptive trigeminal nucleus in chronic migraine. Neurology 2018; 90:e1973-e1978. [DOI: 10.1212/wnl.0000000000005622] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 04/05/2018] [Indexed: 01/03/2023] Open
Abstract
ObjectiveThe visual system has often been described to be sensitized in migraineurs, with light being perceived as aversive or even painful. One possible explanation for this altered perception is crosslinks between the visual and the trigeminonociceptive system. Visual stimulation in chronic migraineurs on the level of the brainstem might lead to enhanced activity within the spinal trigeminal nucleus (sTN) as the main site of trigeminal pain processing within this area.MethodsEighteen episodic migraineurs (EM), 17 chronic migraineurs (CM), and 19 healthy controls (HC) underwent one session of high-resolution brainstem imaging during which a rotating checkerboard was presented repeatedly as a visual stimulus. Data were analyzed using SPM12 and MATLAB with the classic first-level–second-level approach of SPM. Analyses of variance were used for group comparisons.ResultsCM showed enhanced activation within the sTN as compared to HC. In addition, we observed enhanced activity within the right superior colliculus in CM as compared to HC. When comparing all migraineurs with headaches during scanning with all migraineurs without headaches during scanning and HC, we also found the sTN to be more strongly activated during headaches.ConclusionOur data provide evidence for the existence of visual–nociceptive integration on brainstem level in chronic migraineurs.
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Russo A, Silvestro M, Tessitore A, Tedeschi G. Functional Neuroimaging Biomarkers in Migraine: Diagnostic, Prognostic and Therapeutic Implications. Curr Med Chem 2018; 26:6236-6252. [PMID: 29623825 DOI: 10.2174/0929867325666180406115427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/20/2018] [Accepted: 03/22/2018] [Indexed: 01/03/2023]
Abstract
BACKGROUND In current migraine clinical practice, conventional neuroimaging examinations are often sought to exclude possible causes of secondary headaches or migraineassociated disorders. Contrariwise, although advanced Magnetic Resonance Imaging (MRI) has improved tremendously our understanding of human brain processes in migraine patients, to the state of the art they have not superseded the conventional neuroimaging techniques in the migraine clinical setting. METHODS A comprehensive review was conducted of PubMed citations by entering the keyword "marker" and/or "biomarker" combined with "migraine" and/or "headache". Other keywords included "imaging" or "neuroimaging", "structural" or "functional". The only restriction was English-language publication. The abstracts of all articles meeting these criteria were reviewed, and the full text was retrieved and examined for relevant references. RESULTS Several authors tried to identify imaging biomarkers able to identify different migraine phenotypes or, even better, to follow-up the same migraine patients during the course of the disease, to predict the evolution into more severe phenotypes and, finally, the response to specific treatment. CONCLUSION The identification of diagnostic, prognostic and therapeutic advanced neuroimaging biomarkers in the migraine clinical setting, in order to approach to patients in a more and more rational and "tailored" way, is extremely intriguing and futuristic. Unfortunately, reliable and robust neuroimaging biomarkers are still lacking for migraine, probably due to both not completely understood pathogenesis and clinical and neuroimaging heterogeneity. Although further longitudinal advanced neuroimaging studies, aimed to identify effective neuroimaging biomarkers, are needed, this review aims to collect the main and most recent works on this topic.
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Affiliation(s)
- Antonio Russo
- Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Campania "Luigi Vanvitelli", Naples, Italy.,MRI Research Center SUN-FISM, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Marcello Silvestro
- Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Campania "Luigi Vanvitelli", Naples, Italy.,MRI Research Center SUN-FISM, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessandro Tessitore
- Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Campania "Luigi Vanvitelli", Naples, Italy.,MRI Research Center SUN-FISM, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Gioacchino Tedeschi
- Headache Center, Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Campania "Luigi Vanvitelli", Naples, Italy.,MRI Research Center SUN-FISM, University of Campania "Luigi Vanvitelli", Naples, Italy.,Institute for Diagnosis and Care "Hermitage Capodimonte", Naples, Italy
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Abstract
Acid-sensing ion channels (ASICs) are a family of ion channels, consisting of four members; ASIC1 to 4. These channels are sensitive to changes in pH and are expressed throughout the central and peripheral nervous systems-including brain, spinal cord, and sensory ganglia. They have been implicated in a number of neurological conditions such as stroke and cerebral ischemia, traumatic brain injury, and epilepsy, and more recently in migraine. Their expression within areas of interest in the brain in migraine, such as the hypothalamus and PAG, their demonstrated involvement in preclinical models of meningeal afferent signaling, and their role in cortical spreading depression (the electrophysiological correlate of migraine aura), has enhanced research interest into these channels as potential therapeutic targets in migraine. Migraine is a disorder with a paucity of both acute and preventive therapies available, in which at best 50% of patients respond to available medications, and these medications often have intolerable side effects. There is therefore a great need for therapeutic development for this disabling condition. This review will summarize the understanding of the structure and CNS expression of ASICs, the mechanisms for their potential role in nociception, recent work in migraine, and areas for future research and drug development.
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Affiliation(s)
- Nazia Karsan
- Headache Group, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, Denmark Hill, London, SE5 9PJ, UK
| | - Eric B Gonzales
- TCU and UNTHSC School of Medicine (applicant for LCME accreditation), Department of Medical Education, 3500 Camp Bowie Blvd., Fort Worth, TX, 76107, USA
| | - Gregory Dussor
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, 800 West Campbell Road, BSB-14, Richardson, TX, 75080, USA.
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Hendrikse ER, Bower RL, Hay DL, Walker CS. Molecular studies of CGRP and the CGRP family of peptides in the central nervous system. Cephalalgia 2018; 39:403-419. [PMID: 29566540 DOI: 10.1177/0333102418765787] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Calcitonin gene-related peptide is an important target for migraine and other painful neurovascular conditions. Understanding the normal biological functions of calcitonin gene-related peptide is critical to understand the mechanisms of calcitonin gene-related peptide-blocking therapies as well as engineering improvements to these medications. Calcitonin gene-related peptide is closely related to other peptides in the calcitonin gene-related peptide family of peptides, including amylin. Relatedness in peptide sequence and in receptor biology makes it difficult to tease apart the contributions that each peptide and receptor makes to physiological processes and to disorders. SUMMARY The focus of this review is the expression of calcitonin gene-related peptide, related peptides and their receptors in the central nervous system. Calcitonin gene-related peptide is expressed throughout the nervous system, whereas amylin and adrenomedullin have only limited expression at discrete sites in the brain. The components of two receptors that respond to calcitonin gene-related peptide, the calcitonin gene-related peptide receptor (calcitonin receptor-like receptor with receptor activity-modifying protein 1) and the AMY1 receptor (calcitonin receptor with receptor activity-modifying protein 1), are expressed throughout the nervous system. Understanding expression of the peptides and their receptors lays the foundation for more deeply understanding their physiology, pathophysiology and therapeutic use.
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Affiliation(s)
- Erica R Hendrikse
- 1 School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Rebekah L Bower
- 1 School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Debbie L Hay
- 1 School of Biological Sciences, University of Auckland, Auckland, New Zealand.,2 Centre for Brain Research, University of Auckland, Auckland, New Zealand
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Hebestreit JM, May A. The enigma of site of action of migraine preventives: no effect of metoprolol on trigeminal pain processing in patients and healthy controls. J Headache Pain 2017; 18:116. [PMID: 29285569 PMCID: PMC5745371 DOI: 10.1186/s10194-017-0827-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 12/07/2017] [Indexed: 01/03/2023] Open
Abstract
Background Beta-blockers are a first choice migraine preventive medication. So far it is unknown how they exert their therapeutic effect in migraine. To this end we examined the neural effect of metoprolol on trigeminal pain processing in 19 migraine patients and 26 healthy controls. All participants underwent functional magnetic resonance imaging (fMRI) during trigeminal pain twice: Healthy subjects took part in a placebo-controlled, randomized and double-blind study, receiving a single dose of metoprolol and placebo. Patients were examined with a baseline scan before starting the preventive medication and 3 months later whilst treated with metoprolol. Results Mean pain intensity ratings were not significantly altered under metoprolol. Functional imaging revealed no significant differences in nociceptive processing in both groups. Contrary to earlier findings from animal studies, we did not find an effect of metoprolol on the thalamus in either group. However, using a more liberal and exploratory threshold, hypothalamic activity was slightly increased under metoprolol in patients and migraineurs. Conclusions No significant effect of metoprolol on trigeminal pain processing was observed, suggesting a peripheral effect of metoprolol. Exploratory analyses revealed slightly enhanced hypothalamic activity under metoprolol in both groups. Given the emerging role of the hypothalamus in migraine attack generation, these data need further examination.
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Affiliation(s)
- Julia M Hebestreit
- Department of Systems Neuroscience, Center for Experimental Medicine, University Medical Center Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Arne May
- Department of Systems Neuroscience, Center for Experimental Medicine, University Medical Center Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
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Nyholt DR, Borsook D, Griffiths LR. Migrainomics — identifying brain and genetic markers of migraine. Nat Rev Neurol 2017; 13:725-741. [DOI: 10.1038/nrneurol.2017.151] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Abstract
PURPOSE OF REVIEW This review aims to provide an overview of the most recent and significant functional neuroimaging studies which have clarified the complex mechanisms underlying migraine pathophysiology. RECENT FINDINGS The recent data allow us to overcome the concept of a migraine generator suggesting that functional networks abnormalities may lead to changes in different brain area activities and consequent reduced migraine thresholds susceptibility, likely associated with higher migraine severity and burden. Although functional magnetic resonance imaging studies have allowed recognition of several migraine mechanisms, its pathophysiology is not completely understood and is still a matter of research. Nevertheless, in recent years, functional magnetic resonance imaging studies have allowed us to implement our knowledge of migraine pathophysiology. The pivotal role of both the brainstem and the hippocampus in the first phase of a migraine attack, the involvement of limbic pathway in the constitution of a migrainous pain network, the disrupted functional connectivity in cognitive brain networks, as well as the abnormal function of the visual network in patients with migraine with aura are the main milestones in migraine imaging achieved through functional imaging advances. We believe that further studies based on combined functional and structural techniques and the investigation of the different phases of migraine cycle may represent an efficient methodological approach for comprehensively looking into the migrainous brain secrets.
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Miller S, Watkins L, Matharu M. Predictors of response to occipital nerve stimulation in refractory chronic headache. Cephalalgia 2017; 38:1267-1275. [DOI: 10.1177/0333102417728747] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Occipital nerve stimulation is a promising treatment for refractory chronic headache disorders, but is invasive and costly. Identifying predictors of response would be useful in selecting patients. We present the results of an open-label prospective cohort study of 100 patients (35 chronic migraine, 33 chronic cluster headache, 20 short-lasting unilateral neuralgiform headache attacks and 12 hemicrania continua) undergoing occipital nerve stimulation, using a multivariate binary regression analysis to identify predictors of response. Results Response rate of the cohort was 48%. Multivariate analysis showed short lasting unilateral neuralgiform headache attacks (OR 6.71; 95% CI 1.49–30.05; p = 0.013) and prior response to greater occipital nerve block (OR 4.22; 95% CI 1.35–13.21; p = 0.013) were associated with increased likelihood of response. Presence of occipital pain (OR 0.27; 95% CI 0.09–0.76; p = 0.014) and the presence of severe anxiety and/or depression (as measured on hospital anxiety and depression score) at time of implantation (OR 0.32; 95% CI 0.11–0.91; p = 0.032) were associated with reduced likelihood of response. Conclusion Possible clinical predictors of response to occipital nerve stimulation for refractory chronic headaches have been identified. Our data shows that those with short-lasting unilateral neuralgiform headache attacks respond better than those with chronic migraine, and that a prior response to greater occipital nerve block is associated with positive outcomes. This study suggests that the presence of occipital pain and severe mood disorder at time of implant are both associated with poor outcomes to occipital nerve stimulation.
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Affiliation(s)
- Sarah Miller
- Headache Group The National Hospital for Neurology and Neurosurgery, London, UK
- Institute of Neurology, University College London, UK
| | - Laurence Watkins
- Institute of Neurology, University College London, UK
- Department of Neurosurgery, The National Hospital for Neurology and Neurosurgery, London, UK
| | - Manjit Matharu
- Headache Group The National Hospital for Neurology and Neurosurgery, London, UK
- Institute of Neurology, University College London, UK
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Gelfand AA. Melatonin in the Treatment of Primary Headache Disorders. Headache 2017; 57:848-849. [DOI: 10.1111/head.13138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 05/08/2017] [Indexed: 01/03/2023]
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