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Al-Omari A, Gaszner B, Zelena D, Gecse K, Berta G, Biró-Sütő T, Szocsics P, Maglóczky Z, Gombás P, Pintér E, Juhász G, Kormos V. Neuroanatomical evidence and a mouse calcitonin gene-related peptide model in line with human functional magnetic resonance imaging data support the involvement of peptidergic Edinger-Westphal nucleus in migraine. Pain 2024:00006396-990000000-00627. [PMID: 38875125 DOI: 10.1097/j.pain.0000000000003294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 05/02/2024] [Indexed: 06/16/2024]
Abstract
ABSTRACT The urocortin 1 (UCN1)-expressing centrally projecting Edinger-Westphal (EWcp) nucleus is influenced by circadian rhythms, hormones, stress, and pain, all known migraine triggers. Our study investigated EWcp's potential involvement in migraine. Using RNAscope in situ hybridization and immunostaining, we examined the expression of calcitonin gene-related peptide (CGRP) receptor components in both mouse and human EWcp and dorsal raphe nucleus (DRN). Tracing study examined connection between EWcp and the spinal trigeminal nucleus (STN). The intraperitoneal CGRP injection model of migraine was applied and validated by light-dark box, and von Frey assays in mice, in situ hybridization combined with immunostaining, were used to assess the functional-morphological changes. The functional connectivity matrix of EW was examined using functional magnetic resonance imaging in control humans and interictal migraineurs. We proved the expression of CGRP receptor components in both murine and human DRN and EWcp. We identified a direct urocortinergic projection from EWcp to the STN. Photophobic behavior, periorbital hyperalgesia, increased c-fos gene-encoded protein immunoreactivity in the lateral periaqueductal gray matter and trigeminal ganglia, and phosphorylated c-AMP-responsive element binding protein in the STN supported the efficacy of CGRP-induced migraine-like state. Calcitonin gene-related peptide administration also increased c-fos gene-encoded protein expression, Ucn1 mRNA, and peptide content in EWcp/UCN1 neurons while reducing serotonin and tryptophan hydroxylase-2 levels in the DRN. Targeted ablation of EWcp/UCN1 neurons induced hyperalgesia. A positive functional connectivity between EW and STN as well as DRN has been identified by functional magnetic resonance imaging. The presented data strongly suggest the regulatory role of EWcp/UCN1 neurons in migraine through the STN and DRN with high translational value.
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Affiliation(s)
- Ammar Al-Omari
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Balázs Gaszner
- Department of Anatomy, Medical School and Research Group for Mood Disorders, Centre for Neuroscience, University of Pécs, Pécs, Hungary
| | - Dóra Zelena
- Institute of Physiology, Medical School, University of Pécs, Pécs, Hungary
| | - Kinga Gecse
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
- NAP3.0-SE Neuropsychopharmacology Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
| | - Gergely Berta
- Department of Medical Biology, Medical School, University of Pécs, Hungary
| | - Tünde Biró-Sütő
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Szocsics
- Human Brain Research Laboratory, HUN-REN Institute of Experimental Medicine, Budapest, Hungary
- Szentágothai János Doctoral School of Neuroscience, Semmelweis University, Budapest, Hungary
| | - Zsófia Maglóczky
- Human Brain Research Laboratory, HUN-REN Institute of Experimental Medicine, Budapest, Hungary
- Szentágothai János Doctoral School of Neuroscience, Semmelweis University, Budapest, Hungary
| | - Péter Gombás
- Department of Pathology, St. Borbála Hospital, Tatabánya, Hungary
| | - Erika Pintér
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Gabriella Juhász
- Department of Pharmacodynamics, Faculty of Pharmaceutical Sciences, Semmelweis University, Budapest, Hungary
- NAP3.0-SE Neuropsychopharmacology Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
| | - Viktória Kormos
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
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Krajnc N, Frank F, Macher S, Michl M, Müller N, Maier S, Zaic S, Wöber C, Pemp B, Broessner G, Bsteh G. Plasma calcitonin gene-related peptide levels in idiopathic intracranial hypertension: an exploratory study. J Headache Pain 2024; 25:92. [PMID: 38834953 DOI: 10.1186/s10194-024-01799-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) is a debilitating condition characterized by increased intracranial pressure often presenting with chronic migraine-like headache. Calcitonin gene-related peptide (CGRP) plays an important pathophysiological role in primary headaches such as migraine, whilst its role in IIH has not yet been established. METHODS This longitudinal exploratory study included patients with IIH, episodic migraine (EM) in a headache-free interval and healthy controls (HC). Blood samples were collected from a cubital vein and plasma CGRP (pCGRP) levels were measured by standardized ELISA. RESULTS A total of 26 patients with IIH (mean age 33.2 years [SD 9.2], 88.5% female, median BMI 34.8 kg/m2 [IQR 30.0-41.4]), 30 patients with EM (mean age 27.6 years [7.5], 66.7% female) and 57 HC (mean age 25.3 years [5.2], 56.1% female) were included. pCGRP levels displayed a wide variation in IIH as well as in EM and HC on a group-level. Within IIH, those with migraine-like headache had significantly higher pCGRP levels than those with non-migraine-like headache (F(2,524) = 84.79; p < 0.001) and headache absence (F(2,524) = 84.79; p < 0.001) throughout the observation period, explaining 14.7% of the variance in pCGRP levels. CGRP measurements showed strong intraindividual agreement in IIH (ICC 0.993, 95% CI 0.987-0.996, p < 0.001). No association was found between pCGRP levels and ophthalmological parameters. CONCLUSIONS Although interindividual heterogeneity of pCGRP levels is generally high, migraine-like headache seems to be associated with higher pCGRP levels. CGRP may play a role in the headache pathophysiology at least in a subgroup of IIH.
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Affiliation(s)
- Nik Krajnc
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Florian Frank
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Stefan Macher
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Martin Michl
- Department of Ophthalmology, Medical University of Vienna, Vienna, Austria
| | - Nina Müller
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Sarah Maier
- Institute of Medical Statistics and Informatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Sina Zaic
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Christian Wöber
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Berthold Pemp
- Department of Ophthalmology, Medical University of Vienna, Vienna, Austria
| | - Gregor Broessner
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria.
| | - Gabriel Bsteh
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
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Mason A, Fragapane L, Toledo-Nieves Z, Moreo N, Aungst A, Robertson D, Maldonado J. Use of Calcitonin Gene-Related Peptide Monoclonal Antibodies for the Treatment of Migraines in Individuals With Multiple Sclerosis. Int J MS Care 2024; 26:104-107. [PMID: 38765303 PMCID: PMC11096852 DOI: 10.7224/1537-2073.2023-013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
BACKGROUND Migraines are a common comorbidity and source of disability in patients with chronic inflammatory diseases like multiple sclerosis (MS). Recently, therapeutic agents for episodic and chronic migraine known as calcitonin gene-related peptide (CGRP) inhibitors have shown to effectively control migraine attacks and improve quality of life in the general population. This study explored the use of these novel agents in individuals with comorbid MS. METHODS This was a retrospective, population-based cohort study at the University of South Florida's neurology clinic; it evaluated individuals with both MS and migraine. RESULTS A total of 27 individuals with MS and chronic or episodic migraine who received treatment with a CGRP monoclonal antibody were identified. Of these, 63% reported a reduction in their migraine frequency of greater than 75%. Concurrent use of a disease-modifying therapy (DMT) for MS occurred in 82% of patients, and in 37% of these, the DMT used was also a monoclonal antibody. Adverse effects from CGRP monoclonal antibodies were mild and occurred in only 11% of patients, and no patient experienced worsening of their MS symptoms during cotreatment over the duration of the study. CONCLUSIONS Our study showed a significant reduction in migraine frequency and a favorable adverse event profile for individuals with comorbid MS who took CGRP monoclonal antibodies and experienced no worsening of MS symptoms. In individuals with MS, CGRP monoclonal antibodies seem to be a safe and effective therapy for episodic or chronic migraine.
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Affiliation(s)
- Ashley Mason
- From the Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Lauren Fragapane
- Department of Neurology, University of South Florida, Tampa, FL, USA
| | | | - Natalie Moreo
- Department of Neurology, University of South Florida, Tampa, FL, USA
| | - Angela Aungst
- Department of Neurology, University of South Florida, Tampa, FL, USA
| | - Derrick Robertson
- Department of Neurology, University of South Florida, Tampa, FL, USA
| | - Janice Maldonado
- Department of Neurology, University of South Florida, Tampa, FL, USA
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Pehlivanlar E, Carradori S, Simsek R. Migraine and Its Treatment from the Medicinal Chemistry Perspective. ACS Pharmacol Transl Sci 2024; 7:951-966. [PMID: 38633587 PMCID: PMC11020076 DOI: 10.1021/acsptsci.3c00370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 04/19/2024]
Abstract
Migraine is a disease of neurovascular origin that affects the quality of life of more than one billion people and ranks sixth among the most common diseases in the world. Migraine is characterized by a moderate or severe recurrent and throbbing headache, accompanied by nausea, vomiting, and photo-phonophobia. It usually starts in adolescence and is twice as common in women as in men. It is classified as with or without aura and has chronic or acute treatment types according to the frequency of occurrence. In acute treatment, analgesics that relieve pain in the fastest way are preferred, while there are different options in chronic treatment. While non-specific methods were used in the treatment of migraine until the 1950s, triptans, ditans, and CGRP-receptor-dependent therapies (monoclonal antibodies and gepants) started to be used in the clinic more recently. In this Review, we focus on the synthesis, side effects, and pharmacological and pharmacokinetic properties of FDA-approved drugs used in acute and preventive-specific treatment of migraine.
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Affiliation(s)
- Ezgi Pehlivanlar
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey
| | - Simone Carradori
- Department
of Pharmacy, University “G. d’Annunzio”
of Chieti-Pescara, 66100 Chieti, Italy
| | - Rahime Simsek
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey
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Masood T, Lakatos S, Kis G, Ignácz M, Domoki F, Rosta J. Subarachnoid Hemorrhage Depletes Calcitonin Gene-Related Peptide Levels of Trigeminal Neurons in Rat Dura Mater. Cells 2024; 13:653. [PMID: 38667268 PMCID: PMC11048922 DOI: 10.3390/cells13080653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 04/28/2024] Open
Abstract
Subarachnoid hemorrhage (SAH) remains a major cause of cerebrovascular morbidity, eliciting severe headaches and vasospasms that have been shown to inversely correlate with vasodilator calcitonin gene-related peptide (CGRP) levels. Although dura mater trigeminal afferents are an important source of intracranial CGRP, little is known about the effects of SAH on these neurons in preclinical models. The present study evaluated changes in CGRP levels and expression in trigeminal primary afferents innervating the dura mater 72 h after experimentally induced SAH in adult rats. SAH, eliciting marked damage revealed by neurological examination, significantly reduced the density of CGRP-immunoreactive nerve fibers both in the dura mater and the trigeminal caudal nucleus in the medulla but did not affect the total dural nerve fiber density. SAH attenuated ex vivo dural CGRP release by ~40% and in the trigeminal ganglion, reduced both CGRP mRNA levels and the number of highly CGRP-immunoreactive cell bodies. In summary, we provide novel complementary evidence that SAH negatively affects the integrity of the CGRP-expressing rat trigeminal neurons. Reduced CGRP levels suggest likely impaired meningeal neurovascular functions contributing to SAH complications. Further studies are to be performed to reveal the importance of impaired CGRP synthesis and its consequences in central sensory processing.
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Affiliation(s)
- Thannoon Masood
- Department of Neurosurgery, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6., H-6725 Szeged, Hungary
| | - Szandra Lakatos
- Department of Physiology, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 10., H-6720 Szeged, Hungary; (S.L.)
| | - Gyöngyi Kis
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Közép fasor 52., H-6726 Szeged, Hungary
| | - Melissza Ignácz
- Department of Physiology, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 10., H-6720 Szeged, Hungary; (S.L.)
| | - Ferenc Domoki
- Department of Physiology, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 10., H-6720 Szeged, Hungary; (S.L.)
| | - Judit Rosta
- Department of Physiology, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 10., H-6720 Szeged, Hungary; (S.L.)
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Zaranek L, Sobe H, Richter M, Hübler A, Berner R, von der Hagen M, Koch T, Sabatowski R, Klimova A, Goßrau G. [Gender-specific results of the Dresden children and adolescents headache program DreKiP]. Schmerz 2024; 38:107-117. [PMID: 37737282 PMCID: PMC10959813 DOI: 10.1007/s00482-023-00756-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Girls and women are more frequently affected by headache than boys and men. The influence of gender on the effectiveness of headache therapies has so far been hardly investigated. We examined gender differences in the outpatient multimodal Dresden Child and Adolescent Headache Program DreKiP. METHODS We treated 140 patients with primary headache in a 15-hour structured group program. At baseline (T0) and six (T1) and twelve months (T2) after the end of the program, data on headache-related limitation of daily activities (PedMIDAS) as well as headache frequency, intensity, and pain-related disability (P-PDI) were collected. Retrospectively, these data were analyzed separately for girls and boys. RESULTS For 91 patients (9-19 years, median = 15; 71.4 % female) data were available for at least two measurement time points. Girls showed significantly higher headache frequency than boys at all time points (median headache days/last three months at T0: ♀ 43, ♂ 20; T1: ♀ 32, ♂ 12; T2: ♀ 28, ♂ 9) as well as numerically higher headache-related limitation of daily life. There were significant effects over time with a decrease in headache frequency (F (2.88) = 5.862; p = 0.004) and improvement in daily functioning (F (2.92) = 5.340; p = 0.006). There was no gender-specific treatment response. DISCUSSION The DreKiP therapy shows effects in girls and boys with primary headache. Higher headache frequencies and everyday life restrictions in girls may have hormonal but also psychosocial causes and should be addressed in educational measures.
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Affiliation(s)
- Laura Zaranek
- Klinik für Kinder- und Jugendmedizin, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Hanna Sobe
- UniversitätsSchmerzCentrum, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - Matthias Richter
- Klinik für Kinder- und Jugendmedizin, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
- UniversitätsSchmerzCentrum, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - Anke Hübler
- UniversitätsSchmerzCentrum, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
- Klinik für Anästhesiologie und Intensivtherapie, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Reinhard Berner
- Klinik für Kinder- und Jugendmedizin, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Maja von der Hagen
- Klinik für Kinder- und Jugendmedizin, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
- Abteilung Neuropädiatrie, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Thea Koch
- Klinik für Anästhesiologie und Intensivtherapie, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Rainer Sabatowski
- UniversitätsSchmerzCentrum, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
- Klinik für Anästhesiologie und Intensivtherapie, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Anna Klimova
- NCT Partner Site Dresden, Institut für Medizinische Informatik und Biometrie, Medizinische Fakultät "Carl Gustav Carus", TU Dresden, Dresden, Deutschland
| | - Gudrun Goßrau
- UniversitätsSchmerzCentrum, Medizinische Fakultät und Universitätsklinikum "Carl Gustav Carus", TU Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland.
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7
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Rikos D, Vikelis M, Dermitzakis EV, Soldatos P, Rallis D, Rudolf J, Andreou AP, Argyriou AA. Reporting Quality and Risk of Bias Analysis of Published RCTs Assessing Anti-CGRP Monoclonal Antibodies in Migraine Prophylaxis: A Systematic Review. J Clin Med 2024; 13:1964. [PMID: 38610729 PMCID: PMC11012539 DOI: 10.3390/jcm13071964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/19/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Objective: Phase II/III randomized clinical trials (RCTs) are vulnerable to many types of bias beyond randomization. Insights into the reporting quality of RCTs involving migraine patients treated with monoclonal antibodies targeting the calcitonin gene-related peptide system (anti-CGRP MAbs) are currently lacking. Our aim was to analyze the reporting quality of phase II/III RCTs involving migraine patients treated with anti-CGRP MAbs. Methods: A systematic search was performed on the PubMed and EMBASE databases, according to PRISMA guidelines, for relevant RCTs in either episodic or chronic migraine prevention. Additionally, an adapted version of the 2010 CONSORT statement checklist was utilized. The ROBvis online tool was used to document the risk of bias. Results: From the initially identified 179 articles, we finally found 31 RCTs that were eligible for evaluation. The average CONSORT compliance was 88.7% (69.7-100%), while 93.5% (N = 29) of the articles had a compliance greater than 75%. Twenty-eight CONSORT items were reported in more than 75% of the articles. The average compliance of the analyzed RCTs was 93.9% for Galcanezumab, 91.3% for Fremanezumab, followed by 85.4% for Erenumab and Eptinezumab studies. Implementation of the ROB2 tool showed some concerning "missing information" arising from the inadequate reporting. Specifically, 50% of the studies (N = 16) were categorized as having inadequate information regarding the randomization process. Conclusions: Adequate reporting quality was disclosed in the evaluated RCTs with anti-CGRP MAbs in migraine prevention. However, some methodological issues need to be highlighted to be addressed in future studies assessing the efficacy of new molecules targeting CGRP or other candidate pathways implicated in migraine pathophysiology.
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Affiliation(s)
| | - Michail Vikelis
- Headache Clinic, Mediterraneo Hospital, 16675 Athens, Greece;
| | | | | | - Dimitrios Rallis
- Department of Neurology, Tzaneio General Hospital of Piraeus, 18536 Athens, Greece;
| | - Jobst Rudolf
- Department of Neurology, Papageorgiou General Hospital of Thessaloniki, 54645 Thessaloniki, Greece;
| | - Anna P. Andreou
- Headache Centre, Guy’s and St Thomas’ NHS Foundation Trust, London SE1 9RT, UK;
- Headache Research-Wolfson Sensory, Pain and Regeneration Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE1 1LU, UK
| | - Andreas A. Argyriou
- Headache Outpatient Clinic, Department of Neurology, Agios Andreas General Hospital of Patras, 26335 Patras, Greece;
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8
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Wu CH, Chang FC, Wang YF, Lirng JF, Wu HM, Pan LLH, Wang SJ, Chen SP. Impaired Glymphatic and Meningeal Lymphatic Functions in Patients with Chronic Migraine. Ann Neurol 2024; 95:583-595. [PMID: 38055324 DOI: 10.1002/ana.26842] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 12/07/2023]
Abstract
OBJECTIVE This study was undertaken to investigate migraine glymphatic and meningeal lymphatic vessel (mLV) functions. METHODS Migraine patients and healthy controls (HCs) were prospectively recruited between 2020 and 2023. Diffusion tensor image analysis along the perivascular space (DTI-ALPS) index for glymphatics and dynamic contrast-enhanced magnetic resonance imaging parameters (time to peak [TTP]/enhancement integral [EI]/mean time to enhance [MTE]) for para-superior sagittal (paraSSS)-mLV or paratransverse sinus (paraTS)-mLV in episodic migraine (EM), chronic migraine (CM), and CM with and without medication-overuse headache (MOH) were analyzed. DTI-ALPS correlations with clinical parameters (migraine severity [numeric rating scale]/disability [Migraine Disability Assessment (MIDAS)]/bodily pain [Widespread Pain Index]/sleep quality [Pittsburgh Sleep Quality Index (PSQI)]) were examined. RESULTS In total, 175 subjects (112 migraine + 63 HCs) were investigated. DTI-ALPS values were lower in CM (median [interquartile range] = 0.64 [0.12]) than in EM (0.71 [0.13], p = 0.005) and HCs (0.71 [0.09], p = 0.004). CM with MOH (0.63 [0.07]) had lower DTI-ALPS values than CM without MOH (0.73 [0.12], p < 0.001). Furthermore, CM had longer TTP (paraSSS-mLV: 55.8 [12.9] vs 40.0 [7.6], p < 0.001; paraTS-mLV: 51.2 [8.1] vs 44.0 [3.3], p = 0.002), EI (paraSSS-mLV: 45.5 [42.0] vs 16.1 [9.2], p < 0.001), and MTE (paraSSS-mLV: 253.7 [6.7] vs 248.4 [13.8], p < 0.001; paraTS-mLV: 252.0 [6.2] vs 249.7 [1.2], p < 0.001) than EM patients. The MIDAS (p = 0.002) and PSQI (p = 0.002) were negatively correlated with DTI-ALPS index after Bonferroni corrections (p < q = 0.01). INTERPRETATION CM patients, particularly those with MOH, have glymphatic and meningeal lymphatic dysfunctions, which are highly clinically relevant and may implicate pathogenesis for migraine chronification. ANN NEUROL 2024;95:583-595.
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Grants
- MOHW 108-TDU-B-211-133001 Ministry of Health and Welfare, Taiwan
- MOHW107-TDU-B-211-123001 Ministry of Health and Welfare, Taiwan
- MOHW112-TDU-B-211-144001 Ministry of Health and Welfare, Taiwan
- N/A Professor Tsuen CHANG's Scholarship Program from Medical Scholarship Foundation In Memory Of Professor Albert Ly-Young Shen
- V109B-009 Taipei Veterans General Hospital
- V110C-102 Taipei Veterans General Hospital
- V111B-032 Taipei Veterans General Hospital
- V112B-007 Taipei Veterans General Hospital
- V112C-053 Taipei Veterans General Hospital
- V112C-059 Taipei Veterans General Hospital
- V112C-113 Taipei Veterans General Hospital
- V112D67-001-MY3-1 Taipei Veterans General Hospital
- V112D67-002-MY3-1 Taipei Veterans General Hospital
- V112E-004-1 Taipei Veterans General Hospital
- VGH-111-C-158 Taipei Veterans General Hospital
- The Brain Research Center, National Yang Ming Chiao Tung University from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan
- 110-2314-B-075-005 The National Science and Technology Council, Taiwan
- 110-2314-B-075-032 The National Science and Technology Council, Taiwan
- 110-2321-B-010-005- The National Science and Technology Council, Taiwan
- 110-2326-B-A49A-501-MY3 The National Science and Technology Council, Taiwan
- 111-2314-B-075 -086-MY3 The National Science and Technology Council, Taiwan
- 111-2314-B-075-025 -MY3 The National Science and Technology Council, Taiwan
- 111-2314-B-A49-069-MY3 The National Science and Technology Council, Taiwan
- 111-2321-B-A49-004 The National Science and Technology Council, Taiwan
- 111-2321-B-A49-011 The National Science and Technology Council, Taiwan
- 112-2314-B-075-066- The National Science and Technology Council, Taiwan
- 112-2314-B-A49-037 -MY3 The National Science and Technology Council, Taiwan
- 112-2321-B-075-007 The National Science and Technology Council, Taiwan
- NSTC 108-2314-B-010-022 -MY3 The National Science and Technology Council, Taiwan
- 109V1-5-2 Veterans General Hospitals and University System of Taiwan Joint Research Program
- 110-G1-5-2 Veterans General Hospitals and University System of Taiwan Joint Research Program
- VGHUST-112-G1-2-1 Veterans General Hospitals and University System of Taiwan Joint Research Program
- Vivian W. Yen Neurological Foundation
- CI-109-3 Yen Tjing Ling Medical Foundation
- CI-111-2 Yen Tjing Ling Medical Foundation
- CI-112-2 Yen Tjing Ling Medical Foundation
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Affiliation(s)
- Chia-Hung Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Feng-Chi Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yen-Feng Wang
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jiing-Feng Lirng
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsiu-Mei Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Li-Ling Hope Pan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shuu-Jiun Wang
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Pin Chen
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
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9
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Macionis V. Neurovascular Compression-Induced Intracranial Allodynia May Be the True Nature of Migraine Headache: an Interpretative Review. Curr Pain Headache Rep 2023; 27:775-791. [PMID: 37837483 DOI: 10.1007/s11916-023-01174-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2023] [Indexed: 10/16/2023]
Abstract
PURPOSE OF REVIEW Surgical deactivation of migraine trigger sites by extracranial neurovascular decompression has produced encouraging results and challenged previous understanding of primary headaches. However, there is a lack of in-depth discussions on the pathophysiological basis of migraine surgery. This narrative review provides interpretation of relevant literature from the perspective of compressive neuropathic etiology, pathogenesis, and pathophysiology of migraine. RECENT FINDINGS Vasodilation, which can be asymptomatic in healthy subjects, may produce compression of cranial nerves in migraineurs at both extracranial and intracranial entrapment-prone sites. This may be predetermined by inherited and acquired anatomical factors and may include double crush-type lesions. Neurovascular compression can lead to sensitization of the trigeminal pathways and resultant cephalic hypersensitivity. While descending (central) trigeminal activation is possible, symptomatic intracranial sensitization can probably only occur in subjects who develop neurovascular entrapment of cranial nerves, which can explain why migraine does not invariably afflict everyone. Nerve compression-induced focal neuroinflammation and sensitization of any cranial nerve may neurogenically spread to other cranial nerves, which can explain the clinical complexity of migraine. Trigger dose-dependent alternating intensity of sensitization and its synchrony with cyclic central neural activities, including asymmetric nasal vasomotor oscillations, may explain the laterality and phasic nature of migraine pain. Intracranial allodynia, i.e., pain sensation upon non-painful stimulation, may better explain migraine pain than merely nociceptive mechanisms, because migraine cannot be associated with considerable intracranial structural changes and consequent painful stimuli. Understanding migraine as an intracranial allodynia could stimulate research aimed at elucidating the possible neuropathic compressive etiology of migraine and other primary headaches.
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10
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Blumenfeld AM, Lipton RB, Silberstein S, Tepper SJ, Charleston L, Landy S, Kuruvilla DE, Manack Adams A. Multimodal Migraine Management and the Pursuit of Migraine Freedom: A Narrative Review. Neurol Ther 2023; 12:1533-1551. [PMID: 37542624 PMCID: PMC10444724 DOI: 10.1007/s40120-023-00529-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/21/2023] [Indexed: 08/07/2023] Open
Abstract
Migraine is a neurologic disease with a complex pathophysiology that can be controlled with current treatment options but not cured. Therefore, treatment expectations are highly variable. The concept of migraine freedom was recently introduced and can mean different things, with some, for example, expecting complete freedom from headache and associated symptoms and others accepting the occasional migraine attack if it does not impact functioning. Therefore, migraine management should be optimized so that patients can have the best opportunity to achieve their optimal treatment goals. With migraine freedom as a goal and, given the complex pathophysiology of migraine and the high incidence of comorbidities among individuals with migraine, treatment with a single modality may be insufficient, as it may not achieve migraine freedom in those with more frequent or disabling attacks. In this clinical perspective article, we have identified four key, partially overlapping principles of multimodal migraine treatment: (1) manage common comorbidities; (2) control modifiable risk factors for progression by addressing medication and caffeine overuse; (3) diagnose and treat secondary causes of headache, if present; and (4) individualize acute and preventive treatments to minimize pain, functional disability, and allodynia. There are many barriers to pursuing migraine freedom, and strategies to overcome them should be optimized. Migraine freedom should be an aspirational goal both at the individual attack level and for the disease overall. We believe that a comprehensive and multimodal approach that addresses all barriers people with migraine face could move patients closer to migraine freedom.
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Affiliation(s)
| | | | | | - Stewart J Tepper
- New England Institute for Neurology and Headache, Stamford, CT, USA
| | - Larry Charleston
- Department of Neurology and Ophthalmology, Michigan State University College of Human Medicine, East Lansing, MI, USA
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11
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Martinez CI, Liktor-Busa E, Largent-Milnes TM. Molecular mechanisms of hormones implicated in migraine and the translational implication for transgender patients. FRONTIERS IN PAIN RESEARCH 2023; 4:1117842. [PMID: 37795389 PMCID: PMC10546064 DOI: 10.3389/fpain.2023.1117842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 09/05/2023] [Indexed: 10/06/2023] Open
Abstract
Migraine is a primary headache disorder recognized by the World Health Organization as one of the most poorly understood and debilitating neurological conditions impacting global disability. Chronic pain disorders are more frequently diagnosed among cisgender women than men, suggesting that female sex hormones could be responsible for mediating chronic pain, including migraine and/or that androgens can be protective. This review discusses the major gonadal hormones, estrogens, progesterone, and testosterone in the context of molecular mechanisms by which they play a role in migraine pathophysiology. In addition, the literature to date describing roles of minor sex hormones including prolactin, luteinizing hormone, follicular stimulating hormone, and gonadotropin releasing hormone in migraine are presented. Because transgender and gender non-conforming (trans*) individuals are an underserved patient population in which gender-affirming sex hormone replacement therapy (HRT) is often medically necessary to align biological sex with gender identity, results from cisgender patient populations are discussed in the context of these major and minor sex hormones on migraine incidence and management in trans* patients.
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Affiliation(s)
| | | | - Tally M. Largent-Milnes
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
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12
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Huang W, Zhang Y, Zhou Y, Zong J, Qiu T, Hu L, Pan S, Xiao Z. Glymphatic Dysfunction in Migraine Mice Model. Neuroscience 2023; 528:64-74. [PMID: 37516436 DOI: 10.1016/j.neuroscience.2023.07.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Abstract
The glymphatic system is important for waste removal in the central nervous system. It removes soluble proteins and metabolic waste under the action of aquaporin-4 (AQP4) at the end of astrocytes. The glymphatic system plays a role in numerous neurological diseases; however, the relationship between migraine and the glymphatic system remains unclear. In this study, we explored the relationship between the glymphatic system and migraine using the nitroglycerin migraine model in C57/BL6mice. The glymphatic influx of cerebrospinal fluid tracer was reduced in mice in the migraine model, accompanied by decreased expression and impaired polarization of AQP4, thereby suggesting glymphatic dysfunction in migraine mice model. Then, further suppression of glymphatic function by TGN-020 (an AQP4 blocker) aggravated the migraine pathological changes in mice. The results indicated that glymphatic dysfunction may aggravate migraine pathology. Therefore, our findings revealed the potential role of the glymphatic system in migraine, providing possible targets for migraine prevention and treatment.
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Affiliation(s)
- Wanbin Huang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yu Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yanjie Zhou
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jiabin Zong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tao Qiu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Luyu Hu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Songqing Pan
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zheman Xiao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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13
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Labastida-Ramírez A, Caronna E, Gollion C, Stanyer E, Dapkute A, Braniste D, Naghshineh H, Meksa L, Chkhitunidze N, Gudadze T, Pozo-Rosich P, Burstein R, Hoffmann J. Mode and site of action of therapies targeting CGRP signaling. J Headache Pain 2023; 24:125. [PMID: 37691118 PMCID: PMC10494408 DOI: 10.1186/s10194-023-01644-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/01/2023] [Indexed: 09/12/2023] Open
Abstract
Targeting CGRP has proved to be efficacious, tolerable, and safe to treat migraine; however, many patients with migraine do not benefit from drugs that antagonize the CGRPergic system. Therefore, this review focuses on summarizing the general pharmacology of the different types of treatments currently available, which target directly or indirectly the CGRP receptor or its ligand. Moreover, the latest evidence regarding the selectivity and site of action of CGRP small molecule antagonists (gepants) and monoclonal antibodies is critically discussed. Finally, the reasons behind non-responders to anti-CGRP drugs and rationale for combining and/or switching between these therapies are addressed.
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Affiliation(s)
- Alejandro Labastida-Ramírez
- Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE1 1UL, UK
| | - Edoardo Caronna
- Headache Unit, Neurology Department, Vall d'Hebron Universitary Hospital, Barcelona, Spain
- Headache Research Group, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Cédric Gollion
- Department of Neurology, University Hospital of Toulouse, Toulouse, France
| | - Emily Stanyer
- Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE1 1UL, UK
- Nuffield Department of Clinical Neurosciences, Sleep and Circadian Neuroscience Institute, University of Oxford, Oxford, UK
| | | | - Diana Braniste
- Institute of Neurology and Neurosurgery, Diomid Gherman, Chișinău, Moldova
- State University of Medicine and Pharmacy, Nicolae Testemițanu, Moldova
| | - Hoda Naghshineh
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran
| | - Liga Meksa
- Headache Unit, Neurology and Neurosurgery Department, Riga East University Hospital Gailezers, Riga, Latvia
| | | | - Tamari Gudadze
- Department of Neurology, Christian Hospital Unna, Unna, Germany
| | - Patricia Pozo-Rosich
- Headache Unit, Neurology Department, Vall d'Hebron Universitary Hospital, Barcelona, Spain
- Headache Research Group, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rami Burstein
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Department of Anesthesia, Harvard Medical School, Boston, MA, USA
- Center for Life Science, Room 649, 3 Blackfan Circle, Boston, MA, 02215, USA
| | - Jan Hoffmann
- Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE1 1UL, UK.
- NIHR-Wellcome Trust King's Clinical Research Facility/SLaM Biomedical Research Centre, King's College Hospital, London, UK.
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14
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Menon N, Kishen A. Nociceptor-Macrophage Interactions in Apical Periodontitis: How Biomolecules Link Inflammation with Pain. Biomolecules 2023; 13:1193. [PMID: 37627258 PMCID: PMC10452348 DOI: 10.3390/biom13081193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Periradicular tissues have a rich supply of peripheral afferent neurons, also known as nociceptive neurons, originating from the trigeminal nerve. While their primary function is to relay pain signals to the brain, these are known to be involved in modulating innate and adaptive immunity by initiating neurogenic inflammation (NI). Studies have investigated neuroanatomy and measured the levels of biomolecules such as cytokines and neuropeptides in human saliva, gingival crevicular fluid, or blood/serum samples in apical periodontitis (AP) to validate the possible role of trigeminal nociceptors in inflammation and tissue regeneration. However, the contributions of nociceptors and the mechanisms involved in the neuro-immune interactions in AP are not fully understood. This narrative review addresses the complex biomolecular interactions of trigeminal nociceptors with macrophages, the effector cells of the innate immune system, in the clinical manifestations of AP.
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Affiliation(s)
| | - Anil Kishen
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada;
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15
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Sangalli L, Eli B, Mehrotra S, Sabagh S, Fricton J. Calcitonin Gene-Related Peptide-Mediated Trigeminal Ganglionitis: The Biomolecular Link between Temporomandibular Disorders and Chronic Headaches. Int J Mol Sci 2023; 24:12200. [PMID: 37569575 PMCID: PMC10418780 DOI: 10.3390/ijms241512200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
A bidirectional causal relationship has been established between temporomandibular disorders (TMDs) and chronic headaches. Recent advances in the neurobiology of chronic pain offer a framework for understanding the comorbidity between these two conditions that might reside in the shared biomolecular mechanisms of peripheral and central sensitization. The initiation of these processes is inflammatory in nature and is most likely mediated by key molecules, including calcitonin gene-related peptide (CGRP). This scoping review proposes that CGRP-mediated neuroinflammation in the trigeminal ganglion may partly explain the biomolecular bidirectional link between TMDs and chronic headaches. Finally, clinical implications of this neuropathologic process are briefly discussed.
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Affiliation(s)
- Linda Sangalli
- College of Dental Medicine—Illinois, Midwestern University, Downers Grove, IL 60515, USA
| | - Bradley Eli
- Facial Pain Specialists, San Diego, CA 92121,USA; (B.E.); (S.M.); (S.S.)
| | - Sachi Mehrotra
- Facial Pain Specialists, San Diego, CA 92121,USA; (B.E.); (S.M.); (S.S.)
| | - Suzan Sabagh
- Facial Pain Specialists, San Diego, CA 92121,USA; (B.E.); (S.M.); (S.S.)
| | - James Fricton
- Division of TMD and Orofacial Pain, University of Minnesota Schoof of Dentistry, Minneapolis, MN 55455, USA
- Minnesota Head and Neck Pain Clinic, Plymouth, MN 55447, USA
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16
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Wells-Gatnik WD, Wences Chirino TY, Onan FN, Onan D, Martelletti P. Emerging experimental drugs in clinical trials for migraine: observations and key talking points. Expert Opin Investig Drugs 2023; 32:761-771. [PMID: 37672405 DOI: 10.1080/13543784.2023.2254691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/16/2023] [Accepted: 08/30/2023] [Indexed: 09/08/2023]
Abstract
INTRODUCTION There have been significant advances in the treatment of migraine. In response to the clinical success of monoclonal antibodies targeting calcitonin gene-related peptide, there is interest in the clinical trial outcomes of alternative emerging drugs that act on novel targets associated with migraine pathophysiology. As approximately 50% of patients do not respond to CGRP therapies, there is significant value in future drug innovation. Emerging drugs in clinical trials for the treatment of migraine aim to fill this need. AREAS COVERED The emerging drugs that will be discussed in this review include zavegepant, lasmiditan, delta opioid receptor agonists, neuronal nitric oxide synthase inhibitors, monoclonal antibodies targeting pituitary adenylate cyclase-activating polypeptide (PACAP) and its receptor, dual orexin receptor antagonists, metabotropic glutamate receptor 5 antagonists, and inducers of ketosis. EXPERT OPINION When considering the preclinical and clinical research related to the emerging drug classes discussed in this review, most therapies are derived from highly supported targets of migraine pathogenesis. Although the individual drugs discussed in this review may be of dubious clinical value, the importance of the therapeutic targets on which they act cannot be understated. Future research is necessary to appropriately target the pathways elucidated by preclinical studies.
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Affiliation(s)
| | | | | | - Dilara Onan
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Türkiye
| | - Paolo Martelletti
- Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
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17
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Wang Q, Qin H, Deng J, Xu H, Liu S, Weng J, Zeng H. Research Progress in Calcitonin Gene-Related Peptide and Bone Repair. Biomolecules 2023; 13:biom13050838. [PMID: 37238709 DOI: 10.3390/biom13050838] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Calcitonin gene-related peptide (CGRP) has 37 amino acids. Initially, CGRP had vasodilatory and nociceptive effects. As research progressed, evidence revealed that the peripheral nervous system is closely associated with bone metabolism, osteogenesis, and bone remodeling. Thus, CGRP is the bridge between the nervous system and the skeletal muscle system. CGRP can promote osteogenesis, inhibit bone resorption, promote vascular growth, and regulate the immune microenvironment. The G protein-coupled pathway is vital for its effects, while MAPK, Hippo, NF-κB, and other pathways have signal crosstalk, affecting cell proliferation and differentiation. The current review provides a detailed description of the bone repair effects of CGRP, subjected to several therapeutic studies, such as drug injection, gene editing, and novel bone repair materials.
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Affiliation(s)
- Qichang Wang
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
- School of Clinical Medicine, Department of Medicine, Shenzhen University, Shenzhen 518061, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Shenzhen 518036, China
| | - Haotian Qin
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Jiapeng Deng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Huihui Xu
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Su Liu
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Jian Weng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Hui Zeng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Shenzhen 518036, China
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18
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Della Pietra A, Krivoshein G, Ivanov K, Giniatullina R, Jyrkkänen HK, Leinonen V, Lehtonen M, van den Maagdenberg AMJM, Savinainen J, Giniatullin R. Potent dual MAGL/FAAH inhibitor AKU-005 engages endocannabinoids to diminish meningeal nociception implicated in migraine pain. J Headache Pain 2023; 24:38. [PMID: 37038131 PMCID: PMC10088116 DOI: 10.1186/s10194-023-01568-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/17/2023] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND Engaging the endocannabinoid system through inhibition of monoacylglycerol lipase (MAGL) and fatty acid amide hydrolase (FAAH), degrading endocannabinoids (endoCBs) 2-arachidonoylglycerol (2-AG) and anandamide (AEA), was proposed as a promising approach to ameliorate migraine pain. However, the activity of MAGL and FAAH and action of endoCB on spiking activity of meningeal afferents, from which migraine pain originates, has not been explored thus far. Therefore, we here explored the analgesic effects of endoCB enhancement in rat and human meningeal tissues. METHODS Both MAGL and FAAH activity and local 2-AG and AEA levels were measured by activity-based protein profiling (ABPP) and LC-MS/MS, respectively, in rat meninges obtained from hemiskulls of P38-P40 Wistar rats and human meninges from elderly patients undergoing non-migraine related neurosurgery. The action on endoCBs upon administration of novel dual MAGL/FAAH inhibitor AKU-005 on meningeal afferents excitability was tested by investigating paired KCl-induced spiking and validation with local (co-)application of either AEA or 2-AG. Finally, the specific TRPV1 agonist capsaicin and blocker capsazepine were tested. RESULTS The basal level of 2-AG exceeded that of AEA in rat and human meninges. KCl-induced depolarization doubled the level of AEA. AKU-005 slightly increased spontaneous spiking activity whereas the dual MAGL/FAAH inhibitor significantly decreased excitation of nerve fibres induced by KCl. Similar inhibitory effects on meningeal afferents were observed with local applications of 2-AG or AEA. The action of AKU-005 was reversed by CB1 antagonist AM-251, implying CB1 receptor involvement in the anti-nociceptive effect. The inhibitory action of AEA was also reversed by AM-251, but not with the TRPV1 antagonist capsazepine. Data cluster analysis revealed that both AKU-005 and AEA largely increased long-term depression-like meningeal spiking activity upon paired KCl-induced spiking. CONCLUSIONS In the meninges, high anti-nociceptive 2-AG levels can tonically counteract meningeal signalling, whereas AEA can be engaged on demand by local depolarization. AEA-mediated anti-nociceptive effects through CB1 receptors have therapeutic potential. Together with previously detected MAGL activity in trigeminal ganglia, dual MAGL/FAAH inhibitor AKU-005 appears promising as migraine treatment.
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Affiliation(s)
- Adriana Della Pietra
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Georgii Krivoshein
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Konstantin Ivanov
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Raisa Giniatullina
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Henna-Kaisa Jyrkkänen
- Department of Neurosurgery, Kuopio University Hospital and Neurosurgery, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Ville Leinonen
- Department of Neurosurgery, Kuopio University Hospital and Neurosurgery, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Marko Lehtonen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Arn M J M van den Maagdenberg
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Juha Savinainen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Rashid Giniatullin
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
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19
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Kuburas A, Russo AF. Shared and independent roles of CGRP and PACAP in migraine pathophysiology. J Headache Pain 2023; 24:34. [PMID: 37009867 PMCID: PMC10069045 DOI: 10.1186/s10194-023-01569-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/23/2023] [Indexed: 04/04/2023] Open
Abstract
The neuropeptides calcitonin gene-related peptide (CGRP) and pituitary adenylate cyclase-activating polypeptide (PACAP) have emerged as mediators of migraine pathogenesis. Both are vasodilatory peptides that can cause migraine-like attacks when infused into people and migraine-like symptoms when injected into rodents. In this narrative review, we compare the similarities and differences between the peptides in both their clinical and preclinical migraine actions. A notable clinical difference is that PACAP, but not CGRP, causes premonitory-like symptoms in patients. Both peptides are found in distinct, but overlapping areas relevant to migraine, most notably with the prevalence of CGRP in trigeminal ganglia and PACAP in sphenopalatine ganglia. In rodents, the two peptides share activities, including vasodilation, neurogenic inflammation, and nociception. Most strikingly, CGRP and PACAP cause similar migraine-like symptoms in rodents that are manifested as light aversion and tactile allodynia. Yet, the peptides appear to act by independent mechanisms possibly by distinct intracellular signaling pathways. The complexity of these signaling pathways is magnified by the existence of multiple CGRP and PACAP receptors that may contribute to migraine pathogenesis. Based on these differences, we suggest PACAP and its receptors provide a rich set of targets to complement and augment the current CGRP-based migraine therapeutics.
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Affiliation(s)
- Adisa Kuburas
- Department of Molecular Physiology and Biophysics and Department of Neurology, University of Iowa, Iowa City, IA, 52242, USA
| | - Andrew F Russo
- Department of Molecular Physiology and Biophysics and Department of Neurology, University of Iowa, Iowa City, IA, 52242, USA.
- Veterans Affairs Medical Center, Iowa City, IA, 52246, USA.
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Biscetti L, Cresta E, Cupini LM, Calabresi P, Sarchielli P. The putative role of neuroinflammation in the complex pathophysiology of migraine: From bench to bedside. Neurobiol Dis 2023; 180:106072. [PMID: 36907522 DOI: 10.1016/j.nbd.2023.106072] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/18/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023] Open
Abstract
The implications of neurogenic inflammation and neuroinflammation in the pathophysiology of migraine have been clearly demonstrated in preclinical migraine models involving several sites relevant in the trigemino-vascular system, including dural vessels and trigeminal endings, the trigeminal ganglion, the trigeminal nucleus caudalis as well as central trigeminal pain processing structures. In this context, a relevant role has been attributed over the years to some sensory and parasympathetic neuropeptides, in particular calcitonin gene neuropeptide, vasoactive intestinal peptide and pituitary adenylate cyclase-activating polypeptide. Several preclinical and clinical lines of evidence also support the implication of the potent vasodilator and messenger molecule nitric oxide in migraine pathophysiology. All these molecules are involved in vasodilation of the intracranial vasculature, as well as in the peripheral and central sensitization of the trigeminal system. At meningeal level, the engagement of some immune cells of innate immunity, including mast-cells and dendritic cells, and their mediators, has been observed in preclinical migraine models of neurogenic inflammation in response to sensory neuropeptides release due to trigemino-vascular system activation. In the context of neuroinflammatory events implicated in migraine pathogenesis, also activated glial cells in the peripheral and central structures processing trigeminal nociceptive signals seem to play a relevant role. Finally, cortical spreading depression, the pathophysiological substrate of migraine aura, has been reported to be associated with inflammatory mechanisms such as pro-inflammatory cytokine upregulation and intracellular signalling. Reactive astrocytosis consequent to cortical spreading depression is linked to an upregulation of these inflammatory markers. The present review summarizes current findings on the roles of immune cells and inflammatory responses in the pathophysiology of migraine and their possible exploitation in the view of innovative disease-modifying strategies.
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Affiliation(s)
- Leonardo Biscetti
- Istituto Nazionale di Ricovero e Cura dell'Anziano a carattere scientifico, IRCCS-INRCA, Ancona, Italy.
| | - Elena Cresta
- Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Paolo Calabresi
- Department of Neuroscience, Università Cattolica Sacro Cuore, Rome, Italy; Neurologia, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Paola Sarchielli
- Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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Abstract
Medication overuse headache (MOH) is a secondary headache disorder attributed to overuse of acute headache medications by a person with an underlying headache disorder, usually migraine or tension-type headache. MOH is common among individuals with 15 or more headache days per month. Although MOH is associated with substantial disability and reductions in quality of life, this condition is often under-recognized. As MOH is both preventable and treatable, it warrants greater attention and awareness. The diagnosis of MOH is based on the history and an unremarkable neurological examination, and is made according to the diagnostic criteria of the International Classification of Headache Disorders third edition (ICHD-3). Pathophysiological mechanisms of MOH include altered descending pain modulation, central sensitization and biobehavioural factors. Treatment of MOH includes the use of headache preventive therapies, but essential to success is eliminating the cause, by reducing the frequency of use of acute headache medication, and perhaps withdrawing the overused medication altogether. Appropriate treatment is usually highly effective, leading to reduced headache burden and acute medication consumption.
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22
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Su P, Xie X, Xu Y, Luo X, Niu J, Jin Z. Effectiveness of acupuncture in migraine rats: A systematic review. PLoS One 2023; 18:e0280556. [PMID: 36662724 PMCID: PMC9858085 DOI: 10.1371/journal.pone.0280556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE To systematically evaluate the effectiveness and potential underlying mechanisms of acupuncture in the treatment of experimental model of migraine in rats. METHODS Nine electronic databases, including CNKI (China National Knowledge Infrastructure), WanFang, VIP (Chinese Scientific Journals Database), Sinomed, PubMed, Cochrane Library, Web of Science and EBSCO, were searched for randomized experimental studies on migraine in rats involving acupuncture intervention. The search period ranged from inception to June 2022. The methodological quality was assessed using the SYRCLE's risk of bias tool for animal studies. Data were analyzed using the Revman 5.3 software. RESULTS A total of 13 studies were included in this analysis. Findings from the available experimental studies documented that acupuncture significantly reduced behavior scores of rats with migraine (MD = -15.01, 95%CI = [-18.01, -12.01], P<0.00001) and downregulated the expression of calcitonin gene-related peptide (CGRP) (MD = -16.14, 95%CI = [-21.45, -10.83], P<0.00001), substance P (SP) (MD = -11.47, 95%CI = [-15.97, -6.98], P<0.00001) and nitric oxide (NO) (MD = -3.02, 95%CI = [-3.79, -2.26], P<0.00001) in serum, and stimulatory G protein (Gsa) (MD = -62.90, 95%CI = [-69.88, -55.92], P<0.00001) in brainstem. Acupuncture also significantly increased the content of inhibitory G protein (Gia) (MD = 24.01, 95%CI = [20.10, 27.92], P<0.00001) in brainstem and 50% paw withdrawal threshold (50%PWT) (MD = 1.96, 95%CI = [1.15, 2.77], P<0.00001). CONCLUSION Acupuncture can effectively improve the behavioral performance of rates with migraine, and its mechanism of action might involve the inhibition of meningeal vasodilation and inflammatory factors, and the reduction of neurogenic inflammation.
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Affiliation(s)
- Pingping Su
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xiuzhen Xie
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yingqi Xu
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xinxin Luo
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jianli Niu
- Office of Human Research, Memorial Healthcare System, Hollywood, Florida, United States of America
| | - Zhuqing Jin
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
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23
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Aditya S, Rattan A. Advances in CGRP Monoclonal Antibodies as Migraine Therapy: A Narrative Review. SAUDI JOURNAL OF MEDICINE & MEDICAL SCIENCES 2023; 11:11-18. [PMID: 36909005 PMCID: PMC9997852 DOI: 10.4103/sjmms.sjmms_95_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 12/01/2022] [Accepted: 12/21/2022] [Indexed: 03/14/2023]
Abstract
Migraine is a potentially disabling disorder, yet it remains underdiagnosed and undertreated. The release of the neuropeptide calcitonin gene-related peptide (CGRP) in the trigemino-cerebrovascular system plays a vital role in the evolution of migraine. It enhances peripheral sensitization by mediating neurogenic inflammation and also influences central sensitization. The majority of the drug classes available for migraine prophylaxis are nonspecific and associated with numerous side effects and drug interactions. Anti-CGRP monoclonal antibodies (mAb) are an innovative therapeutic class that fulfills the need for more efficacious and tolerable preventive therapy. While erenumab is a mAb to the CGRP receptor, eptinezumab, fremanezumab, and galcanezumab bind to the CGRP molecule. They decrease the number of headache days and improve disability. Upper respiratory tract infection, nausea, constipation, pain at the site of injection, and fatigue are the associated side effects. CGRP mAbs are an excellent advancement in translational research and are a promising addition in migraine therapy. This article discusses the recent advances in the development of the CGRP mAbs.
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Affiliation(s)
- Suruchi Aditya
- Department of Pharmacology, Dr. Harvansh Singh Judge Institute of Dental Sciences, Panjab University, Chandigarh, India
| | - Aditya Rattan
- Cardiology Clinic, Heart Line, Panchkula, Haryana, India
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Modulation of Glia Activation by TRPA1 Antagonism in Preclinical Models of Migraine. Int J Mol Sci 2022; 23:ijms232214085. [PMID: 36430567 PMCID: PMC9697613 DOI: 10.3390/ijms232214085] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/09/2022] [Accepted: 11/13/2022] [Indexed: 11/17/2022] Open
Abstract
Preclinical data point to the contribution of transient receptor potential ankyrin 1 (TRPA1) channels to the complex mechanisms underlying migraine pain. TRPA1 channels are expressed in primary sensory neurons, as well as in glial cells, and they can be activated/sensitized by inflammatory mediators. The aim of this study was to investigate the relationship between TRPA1 channels and glial activation in the modulation of trigeminal hyperalgesia in preclinical models of migraine based on acute and chronic nitroglycerin challenges. Rats were treated with ADM_12 (TRPA1 antagonist) and then underwent an orofacial formalin test to assess trigeminal hyperalgesia. mRNA levels of pro- and anti-inflammatory cytokines, calcitonin gene-related peptide (CGRP) and glia cell activation were evaluated in the Medulla oblongata and in the trigeminal ganglia. In the nitroglycerin-treated rats, ADM_12 showed an antihyperalgesic effect in both acute and chronic models, and it counteracted the changes in CGRP and cytokine gene expression. In the acute nitroglycerin model, ADM_12 reduced nitroglycerin-induced increase in microglial and astroglial activation in trigeminal nucleus caudalis area. In the chronic model, we detected a nitroglycerin-induced activation of satellite glial cells in the trigeminal ganglia that was inhibited by ADM_12. These findings show that TRPA1 antagonism reverts experimentally induced hyperalgesia in acute and chronic models of migraine and prevents multiple changes in inflammatory pathways by modulating glial activation.
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Wang M, Tutt JO, Dorricott NO, Parker KL, Russo AF, Sowers LP. Involvement of the cerebellum in migraine. Front Syst Neurosci 2022; 16:984406. [PMID: 36313527 PMCID: PMC9608746 DOI: 10.3389/fnsys.2022.984406] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 09/27/2022] [Indexed: 11/14/2022] Open
Abstract
Migraine is a disabling neurological disease characterized by moderate or severe headaches and accompanied by sensory abnormalities, e.g., photophobia, allodynia, and vertigo. It affects approximately 15% of people worldwide. Despite advancements in current migraine therapeutics, mechanisms underlying migraine remain elusive. Within the central nervous system, studies have hinted that the cerebellum may play an important sensory integrative role in migraine. More specifically, the cerebellum has been proposed to modulate pain processing, and imaging studies have revealed cerebellar alterations in migraine patients. This review aims to summarize the clinical and preclinical studies that link the cerebellum to migraine. We will first discuss cerebellar roles in pain modulation, including cerebellar neuronal connections with pain-related brain regions. Next, we will review cerebellar symptoms and cerebellar imaging data in migraine patients. Lastly, we will highlight the possible roles of the neuropeptide calcitonin gene-related peptide (CGRP) in migraine symptoms, including preclinical cerebellar studies in animal models of migraine.
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Affiliation(s)
- Mengya Wang
- Department of Neuroscience and Pharmacology, University of Iowa, Iowa City, IA, United States
| | - Joseph O. Tutt
- Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | | | - Krystal L. Parker
- Department of Psychiatry, University of Iowa, Iowa City, IA, United States
| | - Andrew F. Russo
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, United States,Department of Neurology, University of Iowa, Iowa City, IA, United States,Center for the Prevention and Treatment of Visual Loss, Veterans Administration Health Center, Iowa City, IA, United States
| | - Levi P. Sowers
- Center for the Prevention and Treatment of Visual Loss, Veterans Administration Health Center, Iowa City, IA, United States,Department of Pediatrics, University of Iowa, Iowa City, IA, United States,*Correspondence: Levi P. Sowers
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26
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Frank F, Kaltseis K, Filippi V, Broessner G. Hypoxia-related mechanisms inducing acute mountain sickness and migraine. Front Physiol 2022; 13:994469. [PMID: 36148300 PMCID: PMC9485719 DOI: 10.3389/fphys.2022.994469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Experimental models of human diseases are vital for pathophysiological and therapeutic research. To investigate the initiation, maintenance, pathophysiology and even termination of a migraine/headache attack these models are urgently needed. Results from different studies promote the profound involvement of hypoxia in migraine and other primary/secondary headaches. The possible mechanisms that drive the induction of headaches through hypoxia are still unknown, but several modes of action, such as increased blood flow, dilation of cerebral arteries, the release of nitroglycerin, calcitonin gene-related peptide and adenosine or increased oxygen extraction are discussed intensively. In studies exposing healthy volunteers and people with a history of migraine to controlled normobaric hypoxia, our research group could demonstrate normobaric hypoxia to be an effective trigger of migraine headaches. Furthermore, a longitudinal measurement of calcitonin gene-related peptide (CGRP), during a hypoxic challenge in migraine patients, revealed increasing CGRP levels with prolonged hypoxic challenge. Since GRP has been linked to migraine and other headache disorders, hypoxia could be regarded as initiator for headaches on a neurotransmitter basis. Furthermore, it has been known for more than 2 decades from studies in vitro and in vivo that hypoxia can induce cortical spreading depression, a phenomenon believed to represent aura. Considering the increased prevalence of migraine in altitude populations and the solid pathophysiological changes on cellular and neurotransmitter level–the role of hypoxia should be investigated in greater detail by the headache community.
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Rosignoli C, Ornello R, Onofri A, Caponnetto V, Grazzi L, Raggi A, Leonardi M, Sacco S. Applying a biopsychosocial model to migraine: rationale and clinical implications. J Headache Pain 2022; 23:100. [PMID: 35953769 PMCID: PMC9367111 DOI: 10.1186/s10194-022-01471-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/02/2022] [Indexed: 12/23/2022] Open
Abstract
Migraine is a complex condition in which genetic predisposition interacts with other biological and environmental factors determining its course. A hyperresponsive brain cortex, peripheral and central alterations in pain processing, and comorbidities play a role from an individual biological standpoint. Besides, dysfunctional psychological mechanisms, social and lifestyle factors may intervene and impact on the clinical phenotype of the disease, promote its transformation from episodic into chronic migraine and may increase migraine-related disability.Thus, given the multifactorial origin of the condition, the application of a biopsychosocial approach in the management of migraine could favor therapeutic success. While in chronic pain conditions the biopsychosocial approach is already a mainstay of treatment, in migraine the biomedical approach is still dominant. It is instead advisable to carefully consider the individual with migraine as a whole, in order to plan a tailored treatment. In this review, we first reported an analytical and critical discussion of the biological, psychological, and social factors involved in migraine. Then, we addressed the management implications of the application of a biopsychosocial model discussing how the integration between non-pharmacological management and conventional biomedical treatment may provide advantages to migraine care.
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Affiliation(s)
- Chiara Rosignoli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Raffaele Ornello
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Agnese Onofri
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Valeria Caponnetto
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Licia Grazzi
- Neuroalgology Unit and Headache Centre, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Alberto Raggi
- Neurology, Public Health and Disability Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Matilde Leonardi
- Neurology, Public Health and Disability Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Simona Sacco
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
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28
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Abstract
Headache disorders can produce recurrent, incapacitating pain. Migraine and cluster headache are notable for their ability to produce significant disability. The anatomy and physiology of headache disorders is fundamental to evolving treatment approaches and research priorities. Key concepts in headache mechanisms include activation and sensitization of trigeminovascular, brainstem, thalamic, and hypothalamic neurons; modulation of cortical brain regions; and activation of descending pain circuits. This review will examine the relevant anatomy of the trigeminal, brainstem, subcortical, and cortical brain regions and concepts related to the pathophysiology of migraine and cluster headache disorders.
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Affiliation(s)
- Andrea M Harriott
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yulia Orlova
- Department of Neurology, University of Florida, Gainesville, Florida
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29
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Frank F, Kaltseis K, Messlinger K, Broessner G. Short Report of Longitudinal CGRP-Measurements in Migraineurs During a Hypoxic Challenge. Front Neurol 2022; 13:925748. [PMID: 35968307 PMCID: PMC9367467 DOI: 10.3389/fneur.2022.925748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
Background Calcitonin gene related peptide (CGRP) plays a key role in the pathophysiology of migraine and is therefore considered a potential biomarker for primary headache disorders. The challenge remaining is establishing standardized protocols for its assessment in various extracellular compartments and identifying pathological situations associated with an increase in CGRP. Methods We performed longitudinal measurements of CGRP plasma levels in 30 volunteers with the diagnosis of episodic migraine with and without aura under controlled circumstances during an induced migraine attack under a hypoxic challenge. Blood samples were collected from a cubital vein and CGRP plasma levels measured using ELISA. Results CGRP levels varied significantly between the subjects at baseline (15.48–1,889.31 pg/ml) but were neither associated with socio-demographic data nor with headache/migraine frequency or intensity collected before hypoxic exposure. CGRP levels during hypoxia fluctuated around baseline and increased with prolonged hypoxia but did not differ significantly in subjects with migraine or headache compared to those without. However, subjects experiencing migraine without aura showed significantly higher levels than those with aura. Ictal CGRP levels were increased in females, in subjects with a negative family history regarding headaches, in those older than 30 years of age or with a recent headache attack before the experiment (p < 0.05). Conclusion CGRP plasma levels seem to be highly variable even at baseline in migraine patients and increased during hypoxic challenge and migraine attacks. This is the first in human longitudinal measurement of peripheral CGRP levels during induced migraine attacks using a highly standardized protocol.
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Affiliation(s)
- Florian Frank
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Innsbruck, Austria
| | - Katharina Kaltseis
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Innsbruck, Austria
| | - Karl Messlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Gregor Broessner
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Innsbruck, Austria
- *Correspondence: Gregor Broessner
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30
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Citak A, Kilinc E, Torun IE, Ankarali S, Dagistan Y, Yoldas H. The effects of certain TRP channels and voltage-gated KCNQ/Kv7 channel opener retigabine on calcitonin gene-related peptide release in the trigeminovascular system. Cephalalgia 2022; 42:1375-1386. [PMID: 35861239 DOI: 10.1177/03331024221114773] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Calcitonin gene-related peptide release in trigeminovascular system is a pivotal component of neurogenic inflammation underlying migraine pathophysiology. Transient receptor potential channels and voltage-gated KCNQ/Kv7 potassium channels expressed throughout trigeminovascular system are important targets for modulation of calcitonin gene-related peptide release. We investigated the effects of certain transient receptor potential (TRP) channels the vanilloid 1 and 4 (TRPV1 and TRPV4), the ankyrin 1 (TRPA1), and metastatin type 8 (TRPM8), and voltage-gated potassium channel (Kv7) opener retigabine on calcitonin gene-related peptide release from peripheral (dura mater and trigeminal ganglion) and central (trigeminal nucleus caudalis) trigeminal components of rats. METHODS The experiments were carried out using well-established in-vitro preparations (hemiskull, trigeminal ganglion and trigeminal nucleus caudalis) from male Wistar rats. Agonists and antagonists of TRPV1, TRPV4, TRPA1 and TRPM8 channels, and also retigabine were tested on the in-vitro release of calcitonin gene-related peptide. Calcitonin gene-related peptide concentrations were measured using enzyme-linked immunosorbent assay. RESULTS Agonists of these transient receptor potential channels induced calcitonin gene-related peptide release from hemiskull, trigeminal ganglion and trigeminal nucleus caudalis, respectively. The transient receptor potential channels-induced calcitonin gene-related peptide releases were blocked by their specific antagonists and reduced by retigabine. Retigabine also decreased basal calcitonin gene-related peptide releases in all preparations. CONCLUSION Our findings suggest that favorable antagonists of these transient receptor potential channels, or Kv7 channel opener retigabine may be effective in migraine therapy by inhibiting neurogenic inflammation that requires calcitonin gene-related peptide release.
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Affiliation(s)
- Arzu Citak
- Department of Physiology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Erkan Kilinc
- Department of Physiology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Ibrahim Ethem Torun
- Department of Physiology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Seyit Ankarali
- Department of Physiology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - Yasar Dagistan
- Department of Neurosurgery, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Hamit Yoldas
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
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31
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Calcitonin gene-related peptide and neurologic injury: An emerging target for headache management. Clin Neurol Neurosurg 2022; 220:107355. [PMID: 35785661 DOI: 10.1016/j.clineuro.2022.107355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 12/20/2022]
Abstract
Calcitonin gene-related peptide (CGRP) is a 37-amino acid neuropeptide known to be involved in the trigeminovascular system and to function as a potent vasodilator. Although it has emerged as a viable target for headache management with targeted treatments developed for migraine, a highly disabling neurovascular disorder, less is known about CGRP's role in other neurologic conditions such as traumatic brain injury and subarachnoid hemorrhage. The literature has shown that during these injury cascades, CGRP receptors are modulated in varying ways. Therefore, CGRP or its receptors might be viable targets to manage secondary injuries following acute brain injury. In this review, we highlight the pathophysiology of the CGRP pathway and its relation to migraine pathogenesis. Using these same principles, we assess the existing preclinical data for CGRP and its role in acute brain injury. The findings are promising, and set the basis for further work, with specific focus on the therapeutic benefit of CGRP modulation following neurologic injury.
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32
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From spreading depolarization to epilepsy with neuroinflammation: The role of CGRP in cortex. Exp Neurol 2022; 356:114152. [PMID: 35760098 DOI: 10.1016/j.expneurol.2022.114152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/03/2022] [Accepted: 06/18/2022] [Indexed: 11/23/2022]
Abstract
CGRP release plays a major role in migraine pain by activating the trigeminal pain pathways. Here we explored putative additional effects of CGRP on cortical circuits and investigated whether CGRP affects cortical excitability, cortical spreading depolarization (CSD), a phenomenon associated with migraine aura, blood-brain-barrier (BBB) and microglial morphology. We used immunohistochemistry to localize CGRP and the CGRP receptor (CGRP-R) in native cortex and evaluated morphology of microglia and integrity of the BBB after exposure to CGRP. In anesthetized rats we applied CGRP and the CGRP-R antagonist BIBN4096BS locally to the exposed cortex and monitored the spontaneous electrocorticogram and CSDs evoked by remote KCl pressure microinjection. In mouse brain slices CGRP effects on neuronal activity were explored by multielectrode array. CGRP immunoreactivity was detectable in intracortical vessels, and all cortical neurons showed CGRP-R immunoreactivity. In rat cortex in vivo, topical CGRP induced periods of epileptiform discharges, however, also dose-dependently reduced CSD amplitudes and propagation velocity. BIBN4096BS prevented these effects. CGRP evoked synchronized bursting activity in mouse cortical but not in cerebellar slices. Topical application of CGRP to rat cortex induced plasma extravasation and this was associated with reduced ramification of microglial cells. From these findings we conclude that CGRP induces a pathophysiological state in the cortex, consisting in neuronal hyperexcitability and neuroinflammation Thus, CGRP may have a pronounced impact on brain functions during migraine episodes supporting the benefit of CGRP antagonists for clinical use. However, increased cortical CGRP may end the CSD-induced aura phase of migraine.
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Kim J, Lee DA, Lee HJ, Park BS, Ko J, Park SH, Lee YJ, Kim IH, Park JH, Park KM. Glymphatic system dysfunction in patients with cluster headache. Brain Behav 2022; 12:e2631. [PMID: 35582786 PMCID: PMC9226822 DOI: 10.1002/brb3.2631] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/31/2022] [Accepted: 05/03/2022] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION The aim of this study was to investigate alterations of the glymphatic system function in patients with cluster headache. METHODS We enrolled patients with cluster headache and healthy controls, and they underwent brain magnetic resonance imaging (MRI), including diffusion tensor imaging (DTI). We used the MRIcron and DSI studio programs for DTI preprocessing and DTI analysis with perivascular space (DTI-ALPS) index calculation. RESULTS Fourteen patients with cluster headache and 23 healthy controls were enrolled. The DTI-ALPS indexes of the groups were significantly different. The DTI-ALPS index for the patients with cluster headache was lower than that for the healthy controls (1.586 vs. 1.786, p = 0.044). There was a significant negative correlation between the DTI-ALPS index and age in the patients with cluster headache (r = -0.549, p = 0.042). However, the DTI-ALPS index was not associated with other clinical characteristics, including disease duration and headache intensity (r = -0.405, p = 0.150; r = -0.048, p = 0.869, respectively). CONCLUSION Patients with cluster headache had a lower DTI-ALPS index than the healthy controls; this might indicate glymphatic system dysfunction in the patients with cluster headache. Further research is required to determine whether glymphatic system dysfunction is related to the pathophysiology of cluster headache.
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Affiliation(s)
- Jinseung Kim
- Department of Family Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Dong Ah Lee
- Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Ho-Joon Lee
- Department of Radiology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Bong Soo Park
- Department of Internal medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Junghae Ko
- Department of Internal medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Si Hyung Park
- Department of Internal medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Yoo Jin Lee
- Department of Internal medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Il Hwan Kim
- Department of Internal medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Jin Han Park
- Department of Internal medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Kang Min Park
- Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
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Basedau H, Sturm LM, Mehnert J, Peng KP, Schellong M, May A. Migraine monoclonal antibodies against CGRP change brain activity depending on ligand or receptor target - an fMRI study. eLife 2022; 11:77146. [PMID: 35604755 PMCID: PMC9126581 DOI: 10.7554/elife.77146] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/30/2022] [Indexed: 11/29/2022] Open
Abstract
Background: Monoclonal antibodies (mAbs) against calcitonin gene-related peptides (CGRP) are novel treatments for migraine prevention. Based on a previous functional imaging study which investigated the CGRP receptor mAb (erenumab), we hypothesized that (i) the CGRP ligand mAb galcanezumab would alter central trigeminal pain processing; (ii) responders to galcanezumab treatment would show specific hypothalamic modulation in contrast to non-responders; and (iii) the ligand and the receptor antibody differ in brain responses. Methods: Using an established trigeminal nociceptive functional magnetic imaging paradigm, 26 migraine patients were subsequently scanned twice: before and 2–3 weeks after administration of galcanezumab. Results: We found that galcanezumab decreases hypothalamic activation in all patients and that the reduction was stronger in responders than in non-responders. Contrasting erenumab and galcanezumab showed that both antibodies activate a distinct network. We also found that pre-treatment activity of the spinal trigeminal nucleus (STN) and coupling between the STN and the hypothalamus covariates with the response to galcanezumab. Conclusions: These data suggest that despite relative impermeability of the blood-brain barrier for CGRP mAb, mAb treatment induces certain and highly specific brain effects which may be part of the mechanism of their efficacy in migraine treatment. Funding: This work was supported by the German Ministry of Education and Research (BMBF) of ERA-Net Neuron under the project code BIOMIGA (01EW2002 to AM) and by the German Research Foundation (SFB936-178316478-A5 to AM). The funding sources did not influence study conduction in any way. Clinical trial number: The basic science study was preregistered in the Open Science Framework (https://osf.io/m2rc6).
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Affiliation(s)
- Hauke Basedau
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lisa-Marie Sturm
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Mehnert
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kuan-Po Peng
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marlene Schellong
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Arne May
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Yi T, Gao P, Zhu T, Yin H, Jin S. Glymphatic System Dysfunction: A Novel Mediator of Sleep Disorders and Headaches. Front Neurol 2022; 13:885020. [PMID: 35665055 PMCID: PMC9160458 DOI: 10.3389/fneur.2022.885020] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
Sleep contributes to the maintenance of overall health and well-being. There are a growing number of patients who have headache disorders that are significantly affected by poor sleep. This is a paradoxical relationship, whereby sleep deprivation or excess sleep leads to a worsening of headaches, yet sleep onset also alleviates ongoing headache pain. Currently, the mechanism of action remains controversial and poorly understood. The glymphatic system is a newly discovered perivascular network that encompasses the whole brain and is responsible for removing toxic proteins and waste metabolites from the brain as well as replenishing nutrition and energy. Recent studies have suggested that glymphatic dysfunction is a common underlying etiology of sleep disorders and headache pain. This study reviews the current literature on the relationship between the glymphatic system, sleep, and headaches, discusses their roles, and proposes acupuncture as a non-invasive way to focus on the glymphatic function to improve sleep quality and alleviate headache pain.
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Affiliation(s)
- Ting Yi
- Rehabilitation and Health Preservation School, Chengdu University of TCM, Chengdu, China
| | - Ping Gao
- Rehabilitation and Health Preservation School, Chengdu University of TCM, Chengdu, China
| | - Tianmin Zhu
- Rehabilitation and Health Preservation School, Chengdu University of TCM, Chengdu, China
- Tianmin Zhu
| | - Haiyan Yin
- School of Acupuncture and Tuina, Chengdu University of TCM, Chengdu, China
- *Correspondence: Haiyan Yin
| | - Shuoguo Jin
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Shuoguo Jin
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Borlak J, Diener HC, Kleeberg-Hartmann J, Messlinger K, Silberstein S. Petasites for Migraine Prevention: New Data on Mode of Action, Pharmacology and Safety. A Narrative Review. Front Neurol 2022; 13:864689. [PMID: 35585841 PMCID: PMC9108977 DOI: 10.3389/fneur.2022.864689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/21/2022] [Indexed: 11/20/2022] Open
Abstract
Petasins are the pharmacologically active ingredients of butterbur and of therapeutic benefit in the treatment of migraine and tension headaches. Here, we summarize the pharmacology, safety and clinical efficacy of butterbur in the prevention of migraine attacks and present new data on its mode of action. We review published literature and study reports on the safety and clinical efficacy of the butterbur root extract Petadolex® and report new findings on petasins in dampening nociception by desensitizing calcium-conducting TRP ion channels of primary sensory neurons. Importantly, butterbur diminishes the production of inflammatory mediators by inhibiting activities of cyclooxygenases, lipoxygenases and phospholipase A2 and desensitizes nociception by acting on TRPA1 and TRPPV1 ion channels. It inhibits the release of calcitonin-gene related peptide (CGRP) of meningeal afferents during migraine attacks. We also evaluated the safety of a butterbur root extract in repeated dose studies for up to 6 months. A no-observable-adverse-effect-level at 15-fold of the maximal clinical dose (3 mg/kg/day MCD) was established for rats. At supratherapeutic doses, i.e., 45–90-fold MCD, we observed bile duct hyperplasia, and mechanistic studies revealed regulations of solute carriers to likely account for bile duct proliferations. Additionally, liver function tests were performed in cultures of primary human hepatocytes and did not evidence hepatotoxicity at therapeutic butterbur level and with migraine co-medications. Lastly, in randomized, double-blinded and placebo-controlled trials with Petadolex® migraine attack frequency was reduced significantly at 150 mg/day, and no relevant abnormal liver function was reported. Together, butterbur is effective in the prevention of migraine attacks by blocking CGRP signaling.
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Affiliation(s)
- Jürgen Borlak
- Centre for Pharmacology and Toxicology, Hannover Medical School, Hannover, Germany
- *Correspondence: Jürgen Borlak
| | - Hans-Christoph Diener
- Institute for Medical Informatics, Biometry and Epidemiology (IMIBE), University Duisburg-Essen, Essen, Germany
| | | | - Karl Messlinger
- Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Stephen Silberstein
- Jefferson Headache Center, Thomas Jefferson University, Philadelphia, PA, United States
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Inhibiting Endocannabinoid Hydrolysis as Emerging Analgesic Strategy Targeting a Spectrum of Ion Channels Implicated in Migraine Pain. Int J Mol Sci 2022; 23:ijms23084407. [PMID: 35457225 PMCID: PMC9027089 DOI: 10.3390/ijms23084407] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/08/2022] [Accepted: 04/13/2022] [Indexed: 12/23/2022] Open
Abstract
Migraine is a disabling neurovascular disorder characterized by severe pain with still limited efficient treatments. Endocannabinoids, the endogenous painkillers, emerged, alternative to plant cannabis, as promising analgesics against migraine pain. In this thematic review, we discuss how inhibition of the main endocannabinoid-degrading enzymes, monoacylglycerol lipase (MAGL) and fatty acid amide hydrolase (FAAH), could raise the level of endocannabinoids (endoCBs) such as 2-AG and anandamide in order to alleviate migraine pain. We describe here: (i) migraine pain signaling pathways, which could serve as specific targets for antinociception; (ii) a divergent distribution of MAGL and FAAH activities in the key regions of the PNS and CNS implicated in migraine pain signaling; (iii) a complexity of anti-nociceptive effects of endoCBs mediated by cannabinoid receptors and through a direct modulation of ion channels in nociceptive neurons; and (iv) the spectrum of emerging potent MAGL and FAAH inhibitors which efficiently increase endoCBs levels. The specific distribution and homeostasis of endoCBs in the main regions of the nociceptive system and their generation ‘on demand’, along with recent availability of MAGL and FAAH inhibitors suggest new perspectives for endoCBs-mediated analgesia in migraine pain.
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Réaux-Le-Goazigo A, Beliard B, Delay L, Rahal L, Claron J, Renaudin N, Rivals I, Thibaut M, Nouhoum M, Deffieux T, Tanter M, Pezet S. Ultrasound localization microscopy and functional ultrasound imaging reveal atypical features of the trigeminal ganglion vasculature. Commun Biol 2022; 5:330. [PMID: 35393515 PMCID: PMC8989975 DOI: 10.1038/s42003-022-03273-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 03/15/2022] [Indexed: 12/26/2022] Open
Abstract
The functional imaging within the trigeminal ganglion (TG) is highly challenging due to its small size and deep localization. This study combined a methodological framework able to dive into the rat trigeminal nociceptive system by jointly providing 1) imaging of the TG blood vasculature at microscopic resolution, and 2) the measurement of hemodynamic responses evoked by orofacial stimulations in anesthetized rats. Despite the small number of sensory neurons within the TG, functional ultrasound imaging was able to image and quantify a strong and highly localized hemodynamic response in the ipsilateral TG, evoked not only by mechanical or chemical stimulations of corneal nociceptive fibers, but also by cutaneous mechanical stimulations of the ophthalmic and maxillary orofacial regions using a von Frey hair. The in vivo quantitative imaging of the TG’s vasculature using ultrasound localization microscopy combined with in toto labelling reveals particular features of the vascularization of the area containing the sensory neurons, that are likely the origin of this strong vaso-trigeminal response. This innovative imaging approach opens the path for future studies on the mechanisms underlying changes in trigeminal local blood flow and evoked hemodynamic responses, key mechanisms for the understanding and treatment of debilitating trigeminal pain conditions. Visualisation of rat trigeminal ganglia activation during ophthalmic or maxillary nociceptive stimulations shows atypical tortuous vascularisation and a somatotopic hemodynamic response.
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Affiliation(s)
| | - Benoit Beliard
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Lauriane Delay
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Line Rahal
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Julien Claron
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Noémi Renaudin
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Isabelle Rivals
- Equipe de Statistique Appliquée, ESPCI Paris, PSL Research University, UMRS 1158, 10 rue Vauquelin, 75005, Paris, France
| | - Miguel Thibaut
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Mohamed Nouhoum
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France.,Iconeus, 27 Rue du Faubourg Saint-Jacques, 75014, Paris, France
| | - Thomas Deffieux
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Mickael Tanter
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France
| | - Sophie Pezet
- Physics for Medicine Paris, Inserm, ESPCI Paris, CNRS, PSL Research University, 17 rue Moreau, 75012, Paris, France.
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Huang T, Xu Y, Chen Y, Bian J, Chu Z, Zhao S, Ma L. Efficacy and safety of calcitonin gene-related peptide antagonists in migraine treatment: A meta-analysis. Brain Behav 2022; 12:e2542. [PMID: 35261165 PMCID: PMC9015008 DOI: 10.1002/brb3.2542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/09/2022] [Accepted: 02/13/2022] [Indexed: 11/11/2022] Open
Abstract
INTRODUCTION We systematically reviewed the efficacy and safety of Calcitonin Gene-Related Peptide (CGRP) antagonists for migraine treatment. METHODS Various databases including PubMed, Embase, The Cochrane Library, Chinese National Knowledge Infrastructure (CNKI), WanFang Data were electronically searched for randomized controlled trials (RCTs) on CGRP antagonists for migraine treatment since inception to March 2021. The trials were screened for inclusion, after which the methodological quality of the included trials was assessed. Then meta-analysis was performed using the Revman 5.3 software. RESULTS A total of 26 RCTs involving 21,736 patients were included. The CGRP antagonists group included 13,635 patients while the control group included 8101 patients. Meta-analysis showed that compared to the control group, CGRP antagonists were associated with various significant effects, including the following outcome indicators: (1) number of patients with ≥50% reduction from baseline in mean monthly migraine days (RR = 1.50, 95% CI [1.39,1.62], p < .00001); (2) number of patients with pain free at 2 h postdose (RR = 1.98, 95% CI [1.77, 2.20], p < .00001), and (3) number of patients with 2-24 h sustained pain free postdose (RR = 2.18, 95% CI [1.93, 2.46], p < .00001). However, the number of patients with any adverse events was significantly high in the antagonists group, relative to the control group (RR = 1.08, 95% CI [1.04, 1.12], p < .0001). CONCLUSIONS CGRP antagonists are significantly effective for migraine treatment; however, they are associated with various adverse events. Due to limitations with regards to quantity and quality of the included studies, the above conclusions should be verified by more high quality studies.
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Affiliation(s)
- Tingting Huang
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
| | - Yang Xu
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
| | - Yajie Chen
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
| | - Jing Bian
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
| | - Zhaohu Chu
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
| | - Shoucai Zhao
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
| | - Lingsong Ma
- Department of Neurology, The First Affiliated Hospital of Wannan Medical Collage, Wuhu, Anhui, China
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Cohen F, Yuan H. Role of Atogepant in the Treatment of Episodic Migraines: Clinical Perspectives and Considerations. Ther Clin Risk Manag 2022; 18:447-456. [PMID: 35493707 PMCID: PMC9043257 DOI: 10.2147/tcrm.s348724] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/19/2022] [Indexed: 12/29/2022] Open
Abstract
Advances in molecular biology and neuroscience have led to the discovery of calcitonin gene-related peptide (CGRP), a 37 amino-acid neuropeptide that plays a critical role in the pathogenesis of migraine. CGRP receptor antagonist, also known as gepant, is an oral medication that inhibits the CGRP-related nociceptive signaling pathway. To date, three gepants are approved by the FDA for migraine treatment. Atogepant is a 2nd-generation gepant that non-competitively antagonizes CGRP receptors inhibiting neurogenic inflammation and pain sensitization. With its long half-life and minimal cardiovascular or liver toxicity, it is the first in its class approved primarily for migraine prevention. This article will discuss the evidence, safety, and rationale of atogepant for use in clinical practice.
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Affiliation(s)
- Fred Cohen
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Hsiangkuo Yuan
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, 19107, USA
- Correspondence: Hsiangkuo Yuan, Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, 900 Walnut St. Suite 200, Philadelphia, PA, 19107, USA, Tel +1 215-955-2243, Fax +1 215-955-2060, Email
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Edvinsson JCA, Maddahi A, Christiansen IM, Reducha PV, Warfvinge K, Sheykhzade M, Edvinsson L, Haanes KA. Lasmiditan and 5-Hydroxytryptamine in the rat trigeminal system; expression, release and interactions with 5-HT 1 receptors. J Headache Pain 2022; 23:26. [PMID: 35177004 PMCID: PMC8903724 DOI: 10.1186/s10194-022-01394-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/21/2022] [Indexed: 12/21/2022] Open
Abstract
Background 5-Hydroxytryptamine (5-HT) receptors 1B, 1D and 1F have key roles in migraine pharmacotherapy. Selective agonists targeting these receptors, such as triptans and ditans, are effective in aborting acute migraine attacks and inhibit the in vivo release of calcitonin gene-related peptide (CGRP) in human and animal models. The study aimed to examine the localization, genetic expression and functional aspects of 5- HT1B/1D/1F receptors in the trigeminal system in order to further understand the molecular sites of action of triptans (5-HT1B/1D) and ditans (5-HT1F). Methods Utilizing immunohistochemistry, the localization of 5-HT and of 5-HT1B/1D/1F receptors was examined in rat trigeminal ganglion (TG) and combined with quantitative polymerase chain reaction to quantify the level of expression for 5-HT1B/1D/1F receptors in the TG. The functional role of these receptors was examined ex vivo with a capsaicin/potassium induced 5-HT and CGRP release. Results 5-HT immunoreactivity (ir) was observed in a minority of CGRP negative C-fibres, most neuron somas and faintly in A-fibres and Schwann cell neurolemma. 5-HT1B/1D receptors were expressed in the TG, while the 5-HT1F receptor displayed a weak ir. The 5-HT1D receptor co-localized with receptor activity-modifying protein 1 (RAMP1) in Aδ-fibres in the TG, while 5-HT1B-ir was weakly expressed and 5-HT1F-ir was not detected in these fibres. None of the 5-HT1 receptors co-localized with CGRP-ir in C-fibres. 5-HT1D receptor mRNA was the most prominently expressed, followed by the 5-HT1B receptor and lastly the 5-HT1F receptor. The 5-HT1B and 5-HT1D receptor antagonist, GR127935, could reverse the inhibitory effect of Lasmiditan (a selective 5-HT1F receptor agonist) on CGRP release in the soma-rich TG but not in soma-poor TG or dura mater. 5-HT release in the soma-rich TG, and 5-HT content in the baseline samples, negatively correlated with CGRP levels, showing for the first time a physiological role for 5-HT induced inhibition. Conclusion This study reveals the presence of a subgroup of C-fibres that store 5-HT. The data shows high expression of 5-HT1B/1D receptors and suggests that the 5-HT1F receptor is a relatively unlikely target in the rat TG. Furthermore, Lasmiditan works as a partial agonist on 5-HT1B/1D receptors in clinically relevant dose regiments. Supplementary Information The online version contains supplementary material available at 10.1186/s10194-022-01394-z.
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Affiliation(s)
- Jacob C A Edvinsson
- Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet Glostrup, 2600, Glostrup, Denmark. .,Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Aida Maddahi
- Division of Experimental Vascular Research, Department of Clinical Sciences, Lund University Hospital, Lund, Sweden
| | - Isabella M Christiansen
- Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet Glostrup, 2600, Glostrup, Denmark.,Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Philip V Reducha
- Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet Glostrup, 2600, Glostrup, Denmark.,Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Karin Warfvinge
- Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet Glostrup, 2600, Glostrup, Denmark.,Division of Experimental Vascular Research, Department of Clinical Sciences, Lund University Hospital, Lund, Sweden
| | - Majid Sheykhzade
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lars Edvinsson
- Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet Glostrup, 2600, Glostrup, Denmark.,Division of Experimental Vascular Research, Department of Clinical Sciences, Lund University Hospital, Lund, Sweden
| | - Kristian A Haanes
- Department of Clinical Experimental Research, Glostrup Research Institute, Rigshospitalet Glostrup, 2600, Glostrup, Denmark.,Department of Biology, University of Copenhagen, Copenhagen, Denmark
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Rosta J, Tóth M, Friedrich N, Sántha P, Jancsó G, Dux M. Insulin sensitizes neural and vascular TRPV1 receptors in the trigeminovascular system. J Headache Pain 2022; 23:7. [PMID: 35033025 PMCID: PMC8903670 DOI: 10.1186/s10194-021-01380-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022] Open
Abstract
Background Clinical observations suggest that hyperinsulinemia and insulin resistance can be associated with migraine headache. In the present study we examined the effect of insulin on transient receptor potential vanilloid 1 (TRPV1) receptor-dependent meningeal nociceptor functions in rats. Methods The effects of insulin on the TRPV1 receptor stimulation-induced release of calcitonin gene related peptide (CGRP) from trigeminal afferents and changes in meningeal blood flow were studied. Colocalization of the insulin receptor, the TRPV1 receptor and CGRP was also analyzed in trigeminal ganglion neurons. Results Insulin induced release of CGRP from meningeal afferents and consequent increases in dural blood flow through the activation of TRPV1 receptors of trigeminal afferents. Insulin sensitized both neural and vascular TRPV1 receptors making them more susceptible to the receptor agonist capsaicin. Immunohistochemistry revealed colocalization of the insulin receptor with the TRPV1 receptor and CGRP in a significant proportion of trigeminal ganglion neurons. Conclusions Insulin may activate or sensitize meningeal nociceptors that may lead to enhanced headache susceptibility in persons with increased plasma insulin concentration.
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Affiliation(s)
- Judit Rosta
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary
| | - Máté Tóth
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary
| | - Nadine Friedrich
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary
| | - Péter Sántha
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary
| | - Gábor Jancsó
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary
| | - Mária Dux
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary.
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CHANGES IN THE TRIGEMINAL GANGLION OF RATS WITH ACUTE CARRAGEENAN-INDUCED INFLAMMATION. WORLD OF MEDICINE AND BIOLOGY 2022. [DOI: 10.26724/2079-8334-2022-4-82-206-211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Blumenfeld A, Durham PL, Feoktistov A, Hay DL, Russo AF, Turner I. Hypervigilance, Allostatic Load, and Migraine Prevention: Antibodies to CGRP or Receptor. Neurol Ther 2021; 10:469-497. [PMID: 34076848 PMCID: PMC8571459 DOI: 10.1007/s40120-021-00250-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 04/09/2021] [Indexed: 01/03/2023] Open
Abstract
Migraine involves brain hypersensitivity with episodic dysfunction triggered by behavioral or physiological stressors. During an acute migraine attack the trigeminal nerve is activated (peripheral sensitization). This leads to central sensitization with activation of the central pathways including the trigeminal nucleus caudalis, the trigemino-thalamic tract, and the thalamus. In episodic migraine the sensitization process ends with the individual act, but with chronic migraine central sensitization may continue interictally. Increased allostatic load, the consequence of chronic, repeated exposure to stressors, leads to central sensitization, lowering the threshold for future neuronal activation (hypervigilance). Ostensibly innocuous stressors are then sufficient to trigger an attack. Medications that reduce sensitization may help patients who are hypervigilant and help to balance allostatic load. Acute treatments and drugs for migraine prevention have traditionally been used to reduce attack duration and frequency. However, since many patients do not fully respond, an unmet treatment need remains. Calcitonin gene-related peptide (CGRP) is a vasoactive neuropeptide involved in nociception and in the sensitization of peripheral and central neurons of the trigeminovascular system, which is implicated in migraine pathophysiology. Elevated CGRP levels are associated with dysregulated signaling in the trigeminovascular system, leading to maladaptive responses to behavioral or physiological stressors. CGRP may, therefore, play a key role in the underlying pathophysiology of migraine. Increased understanding of the role of CGRP in migraine led to the development of small-molecule antagonists (gepants) and monoclonal antibodies (mAbs) that target either CGRP or the receptor (CGRP-R) to restore homeostasis, reducing the frequency, duration, and severity of attacks. In clinical trials, US Food and Drug Administration-approved anti-CGRP-R/CGRP mAbs were well tolerated and effective as preventive migraine treatments. Here, we explore the role of CGRP in migraine pathophysiology and the use of gepants or mAbs to suppress CGRP-R signaling via inhibition of the CGRP ligand or receptor.
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Affiliation(s)
- Andrew Blumenfeld
- The Headache Center of Southern California, The Neurology Center, Carlsbad, CA, USA.
| | - Paul L Durham
- Department of Biology, Center for Biomedical and Life Sciences, Missouri State University, Springfield, MO, USA
| | | | - Debbie L Hay
- School of Biological Sciences, The University of Auckland, Auckland, New Zealand
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | - Andrew F Russo
- Departments of Molecular Physiology and Biophysics, Neurology, University of Iowa, Iowa City, IA, USA
- Center for the Prevention and Treatment of Visual Loss, Iowa City VA Health Care System, Iowa City, IA, USA
| | - Ira Turner
- Island Neurological Associates, Plainview, NY, USA
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Kim YJ, Granstein RD. Roles of calcitonin gene-related peptide in the skin, and other physiological and pathophysiological functions. Brain Behav Immun Health 2021; 18:100361. [PMID: 34746878 PMCID: PMC8551410 DOI: 10.1016/j.bbih.2021.100361] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 10/01/2021] [Accepted: 10/02/2021] [Indexed: 01/05/2023] Open
Abstract
Skin immunity is regulated by many mediator molecules. One is the neuropeptide calcitonin gene-related peptide (CGRP). CGRP has roles in regulating the function of components of the immune system including T cells, B cells, dendritic cells (DCs), endothelial cells (ECs), and mast cells (MCs). Herein we discuss actions of CGRP in mediating inflammatory and vascular effects in various cutaneous models and disorders. CGRP can help to recruit immune cells through endothelium-dependent vasodilation. CGRP plays an important role in the pathogenesis of neurogenic inflammation. Functions of many components in the immune system are influenced by CGRP. CGRP regulates various inflammatory processes in human skin by affecting different cell-types.
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Affiliation(s)
- Yee Jung Kim
- Department of Dermatology, Weill Cornell Medicine, 1305 York Avenue, WGC9, New York, NY, 10021, USA
| | - Richard D Granstein
- Department of Dermatology, Weill Cornell Medicine, 1305 York Avenue, WGC9, New York, NY, 10021, USA
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Gadolinium enhancement of cranial nerves: Implications for interstitial fluid drainage from brainstem into cranial nerves in humans. Proc Natl Acad Sci U S A 2021; 118:2106331118. [PMID: 34728566 PMCID: PMC8609323 DOI: 10.1073/pnas.2106331118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2021] [Indexed: 11/18/2022] Open
Abstract
Drainage of interstitial fluid and solutes from the brainstem has not been well studied. To map one drainage pathway in the human brainstem, we took advantage of the focal blood–brain barrier disruption occurring in a multiple sclerosis brainstem lesion, coupled with intravenous injection of gadolinium, which simulates an intraparenchymal injection of gadolinium tracer within the restricted confines of this small brain region. Using high-resolution MRI, we show how it is possible for interstitial fluid to drain into the adjacent trigeminal and oculomotor nerves, in keeping with a pathway of communication between the extracellular spaces of the brainstem and cranial nerve parenchyma.
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Messlinger K. The chicken and egg problem: CGRP release due to trigeminal activation or vice versa? Cephalalgia 2021; 42:183-185. [PMID: 34601945 PMCID: PMC8988462 DOI: 10.1177/03331024211042360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Karl Messlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University, Erlangen-Nürnberg Universitätsstr. Erlangen, Germany
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Risch M, Vogler B, Dux M, Messlinger K. CGRP outflow into jugular blood and cerebrospinal fluid and permeance for CGRP of rat dura mater. J Headache Pain 2021; 22:105. [PMID: 34496764 PMCID: PMC8424805 DOI: 10.1186/s10194-021-01320-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022] Open
Abstract
Background Calcitonin gene-related peptide (CGRP) is released from activated meningeal afferent fibres in the cranial dura mater, which likely accompanies severe headache attacks. Increased CGRP levels have been observed in different extracellular fluid compartments during primary headaches such as migraine but it is not entirely clear how CGRP is drained from the meninges. Methods We have used an in vivo preparation of the rat to examine after which time and at which concentration CGRP applied onto the exposed parietal dura mater appears in the jugular venous blood and the cerebrospinal fluid (CSF) collected from the cisterna magna. Recordings of meningeal (dural) and cortical (pial) blood flow were used to monitor the vasodilatory effect of CGRP. In a new ex vivo preparation we examined how much of a defined CGRP concentration applied to the arachnoidal side penetrates the dura. CGRP concentrations were determined with an approved enzyme immunoassay. Results CGRP levels in the jugular plasma in vivo were slightly elevated compared to baseline values 5-20 min after dural application of CGRP (10 μM), in the CSF a significant three-fold increase was seen after 35 min. Meningeal but not cortical blood flow showed significant increases. The spontaneous CGRP release from the dura mater ex vivo was above the applied low concentration of 1 pM. CGRP at 1 nM did only partly penetrate the dura. Conclusions We conclude that only a small fraction of CGRP applied onto the dura mater reaches the jugular blood and, in a delayed manner, also the CSF. The dura mater may constitute a barrier for CGRP and limits diffusion into the CSF of the subarachnoidal space, where the CGRP concentration is too low to cause vasodilatation.
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Affiliation(s)
- Miriam Risch
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstr. 17, D-91054, Erlangen, Germany
| | - Birgit Vogler
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstr. 17, D-91054, Erlangen, Germany
| | - Mária Dux
- Department of Physiology, University of Szeged, Dóm tér 10, Szeged, H-6720, Hungary
| | - Karl Messlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstr. 17, D-91054, Erlangen, Germany.
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Lange KS, Forster O, Mawet J, Tuloup G, Burcin C, Corti L, Duflos C, Roos C, Ducros A. Type of headache at onset and risk for complications in reversible cerebral vasoconstriction syndrome. Eur J Neurol 2021; 29:130-137. [PMID: 34390103 DOI: 10.1111/ene.15064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 08/07/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND In a recent Italian study, 30% of patients with reversible cerebral vasoconstriction syndrome (RCVS) presented without thunderclap headache (TCH), and tended to present more severe forms of RCVS than patients with TCH. We aimed to analyze the risk for complications of RCVS in patients with and without TCH at onset. METHODS In a pooled cohort of 345 French patients with RCVS, we compared patients with and without TCH at onset regarding rates of neurological complications, and the functional outcome at 3 months. RESULTS As compared to the 281 patients with TCH at onset, the 64 patients without TCH had a higher risk for any neurological complication (61% vs. 24%, OR 4.9, 95% CI 2.8-8.7, p < 0.001). The association was strongest for cervical artery dissections (28% vs. 5%, OR 8.1, 95% CI 3.7-17.6, p < 0.001), followed by posterior reversible encephalopathy syndrome (17% vs. 3%, OR 7.1, 95% CI 2.7-18.4, p < 0.001), seizures (9% vs. 2.5%, OR 4.1, 95% CI 1.3-12.5, p = 0.019), and subarachnoid hemorrhage (41% vs. 16%, OR 3.5, 95% CI 1.9-6.3, p < 0.001). In multivariable analysis, the risk for any neurological complication remained significantly elevated in the absence of TCH (OR 3.5, 95% CI 1.8-6.8, p < 0.001). The functional outcome was equal in both groups, with a modified Rankin scale score of 0-1 in ≥90% of patients. CONCLUSIONS Absence of TCH at onset might predict a higher risk of complications in RCVS. Our results warrant further multicentric studies to prove this finding.
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Affiliation(s)
- Kristin Sophie Lange
- Department of Neurology, CHU Montpellier, Hospital Gui de Chauliac, Montpellier, France.,Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin, Berlin, Germany.,Department of Neurology I Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Ophélie Forster
- Department of Neurology, CHU Montpellier, Hospital Gui de Chauliac, Montpellier, France
| | - Jérôme Mawet
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
| | | | - Cécilia Burcin
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Lucas Corti
- Department of Neurology, CHU Montpellier, Hospital Gui de Chauliac, Montpellier, France
| | - Claire Duflos
- Clinical Research and Epidemiology Unit, Department of Medical Information, CHU Montpellier, Montpellier University, Montpellier, France
| | - Caroline Roos
- Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Anne Ducros
- Department of Neurology, CHU Montpellier, Hospital Gui de Chauliac, Montpellier, France.,Charles Coulomb Laboratory, CNRS UMR5221, Montpellier University, Montpellier, France
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Terrier LM, Fontaine D. Intracranial nociception. Rev Neurol (Paris) 2021; 177:765-772. [PMID: 34384629 DOI: 10.1016/j.neurol.2021.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/23/2021] [Accepted: 07/23/2021] [Indexed: 11/29/2022]
Abstract
Understanding intracranial nociceptive innervation is essential to understand the pathophysiology of headaches. Our knowledge about human intracranial nociception comes from sparse observations during neurosurgical procedures performed in awake patients, from human anatomical studies and from experimental studies in animals. In this article we review the anatomical and functional organization underlying nociceptive innervation. Intracranial nociception is mainly mediated by the trigeminal system, except in the posterior cranial fossa that is innervated by the first cervical roots. For decades, the dura mater, its vessels and major cerebral blood vessels were considered as the only intracranial pain-sensitive structures. Recent animal and human studies have suggested that smaller brain arteries and potentially pia mater might also be pain sensitive. Nociceptive neurons innervating intracranial blood vessels project via the ophthalmic division (V1) to the trigeminal ganglion and store several neurotransmitters including glutamate, substance P and calcitonin gene-related peptide (CGRP). The trigeminal ganglion, root and brainstem nuclei have a specific topographic and functional somatotopy. Progressive transition between the trigeminal spinal nucleus and the dorsal horn of the cervical spinal cord, and convergence of nociceptive inputs from the face, intracranial structures and the occipital area on the so-called "trigemino-cervical complex" may explain some headache features, relations between facial and occipital pain, and efficacy of occipital nerve stimulation in headache. The specific anatomic organization of the trigeminal system, from the primary-order neuron in the trigeminal ganglion, to the second-order neuron is the trigeminal nuclei, may explain a part of the various characteristics of headaches.
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Affiliation(s)
- L-M Terrier
- Department of Neurosurgery, CHRU de Tours, U1253, 10, Boulevard Tonnellé, 37032 Tours, France; UMR 1253, ibrain, Université de Tours, Inserm, Tours, France.
| | - D Fontaine
- Department of Neurosurgery, CHU de Nice, Université Cote d'Azur, Nice, France; Université Cote d'Azur, FHU INOVPAIN, CHU de Nice, Nice, France
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