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Alwhaibi A, Alasmari F, Almutairi F, Assiri MA, Aldawsari FS, Aloyayd ST, Alhejji AA, Alotaibi JA, Albilali A, Almohammed OA, Alsanea S. Effect of fasting-induced headache on calcitonin gene related peptide (CGRP) and other clinical biomarkers on the first day of Ramadan: Sub-analysis from a randomized open label clinical trial. J Headache Pain 2024; 25:181. [PMID: 39415097 DOI: 10.1186/s10194-024-01886-0] [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: 08/20/2024] [Accepted: 10/07/2024] [Indexed: 10/18/2024] Open
Abstract
BACKGROUND Fasting-induced headaches (FIHs) have been shown to occur on the first day of Ramadan and clearly decline thereafter. Despite the wealth of knowledge about different types of headaches (e.g., migraine-, cluster-, and tension-type headaches), research on the mechanism underlying FIHs, as well as their treatment, remains scarce. Our study aimed to investigate any association between FIHs during the first day of Ramadan and potential headache-related biomarkers, including fasting blood glucose (FBG), C-reactive protein (CRP), magnesium, vitamin B9, vitamin B12, homocysteine, and calcitonin gene related peptide (CGRP), and to assess whether a prophylactic use of paracetamol may influence these biomarkers. METHODS As part of a randomized, open-label clinical trial that evaluated the effect of paracetamol as a prophylactic therapy for FIH, blood samples from stratified subjects in the prophylaxis and control groups were withdrawn while fasting after the 1st dose of paracetamol (in the prophylaxis group) and prior to reporting headache occurrence. RESULTS Plasma and serum were separated for 61 subjects; 31 and 30 subjects from the prophylaxis and control groups, respectively. Overall, no significant differences were found in the levels of FBG, CRP, magnesium, vitamin B9, and vitamin B12 in headache-suffering subjects compared to those without headache despite the use of paracetamol for prophylaxis. Homocysteine, however, was significantly reduced in all subjects who experienced FIH compared to those without headache (median 6.9 [1.6] vs. 7.7 [2.7] umol/L; p = 0.041). On the contrary, when the CGRP was measured using immunoassay, it was found to be significantly elevated in all headache-suffering subjects compared to those without headache (median 126.1 [17.7] vs. 105.8 [19.6] pg/mL; p ≤ 0.0001). This difference was maintained upon comparing the headache to non-headache subjects in both the prophylaxis (median 121.5 [15.4] vs. 105.8 [9.4] pg/mL; p < 0.01) and control groups (median 128.5 [28.3] vs. 105.8 [23.8] pg/mL; p < 0.01). Additionally, an elevated CGRP level was found to increase the odds of having a FIH [OR = 1.32; 95%CI 1.06-1.22]. CONCLUSIONS Our findings revealed the role of CGRP in FIHs for the first time and suggest further investigation in signaling pathways downstream CGRP receptors. Furthermore, the modulation CGRP or CGRP receptors could have a clinical application in the prevention of FIHs. TRIAL REGISTRATION This study was registered with the Saudi Food and Drug Authority in the Saudi Clinical Trials Registry (SCTR; No. 22122102).
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Affiliation(s)
- Abdulrahman Alwhaibi
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia.
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia.
| | - Fawaz Alasmari
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
| | - Faris Almutairi
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
| | - Mohammed A Assiri
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
| | - Feras S Aldawsari
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Saud T Aloyayd
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah A Alhejji
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Jawaher A Alotaibi
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
| | - Abdulrazaq Albilali
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
- Department of Internal Medicine, College of Medicine, Neurology Unit, King Saud University, Riyadh, Saudi Arabia
| | - Omar A Almohammed
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Sary Alsanea
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia.
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 2457, 11451, Riyadh, Saudi Arabia.
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Christensen SL, Levy D. Meningeal brain borders and migraine headache genesis. Trends Neurosci 2024:S0166-2236(24)00155-3. [PMID: 39304416 DOI: 10.1016/j.tins.2024.08.012] [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: 05/02/2024] [Revised: 08/05/2024] [Accepted: 08/23/2024] [Indexed: 09/22/2024]
Abstract
Migraine is a highly prevalent and disabling pain disorder that affects >1 billion people worldwide. One central hypothesis points to the cranial meninges as a key site underlying migraine headache genesis through complex interplay between meningeal sensory nerves, blood vessels, and adjacent immune cells. How these interactions might generate migraine headaches remains incompletely understood and a subject of much debate. In this review we discuss clinical and preclinical evidence supporting the concept that meningeal sterile inflammation, involving neurovascular and neuroimmune interactions, underlies migraine headache genesis. We examine downstream signaling pathways implicated in the development of migraine pain in response to exogenous events such as infusing migraine-triggering chemical substances. We further discuss cortex-to-meninges signaling pathways that could underlie migraine pain in response to endogenous events, such as cortical spreading depolarization (CSD), and explore future directions for the field.
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Affiliation(s)
- Sarah Louise Christensen
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Neurology, Danish Headache Center, Copenhagen University Hospital, Rigshospitalet, Glostrup, Denmark; Translational Research Centre, Copenhagen University Hospital, Rigshospitalet, Glostrup, Denmark
| | - Dan Levy
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Kamm K. [CGRP: from neuropeptide to the therapeutic target (background and pathophysiology)]. FORTSCHRITTE DER NEUROLOGIE-PSYCHIATRIE 2024; 92:267-276. [PMID: 39025056 DOI: 10.1055/a-2331-0783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Calcitonin gene-related peptide (CGRP) plays a pivotal role in migraine pathophysiology. The importance of CGRP in migraine became evident from numerous clinical studies investigating CGRP levels both interictally and ictally and reports on the efficacy of CGRP-based migraine therapies. In this paper, the above mentioned studies will be presented and the reader will be introduced to the development of CGRP-based medication. Finally, current study results on CGRP receptor antagonists, the so-called gepants, will be presented.
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Affiliation(s)
- Katharina Kamm
- Neurologische Klinik und Poliklinik, LMU Klinikum Campus Grosshadern, Ludwig-Maximilians-Universität München, München, Germany
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Gárate G, Pascual J, Pascual-Mato M, Madera J, Martín MMS, González-Quintanilla V. Untangling the mess of CGRP levels as a migraine biomarker: an in-depth literature review and analysis of our experimental experience. J Headache Pain 2024; 25:69. [PMID: 38684990 PMCID: PMC11057141 DOI: 10.1186/s10194-024-01769-4] [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: 03/18/2024] [Accepted: 04/09/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Calcitonin gene-related peptide (CGRP) is the most promising candidate to become the first migraine biomarker. However, literature shows clashing results and suggests a methodological source for such discrepancies. We aimed to investigate some of these methodological factors to evaluate the actual role of CGRP as biomarker. METHODS Previous to the experimental part, we performed a literature review of articles measuring CGRP in migraine patients. Using our 399 bio-bank sera samples, we performed a series of experiments to test the validity of different ELISA kits employed, time of sample processing, long-term storage, sampling in rest or after moderate exercise. Analysis of in-house data was performed to analyse average levels of the peptide and the effect of sex and age. RESULTS Literature review shows the high variability in terms of study design, determination methods, results and conclusions obtained by studies including CGRP determinations in migraine patients. CGRP measurements depends on the method and specific kit employed, also on the isoform detected, showing completely different ranges of concentrations. Alpha-CGRP and beta-CGRP had median with IQR levels of 37.5 (28.2-54.4) and 4.6 (2.4-6.4)pg/mL, respectively. CGRP content is preserved in serum within the 24 first hours when samples are stored at 4°C after clotting and immediate centrifugation. Storages at -80°C of more than 6 months result in a decrease in CGRP levels. Moderate exercise prior to blood extraction does not modulate the concentration of the peptide. Age positively correlates with beta-CGRP content and men have higher alpha-CGRP levels than women. CONCLUSIONS We present valuable information for CGRP measurements in serum. ELISA kit suitability should be tested prior to the experiments. Alpha and beta-CGRP levels should be analysed separately as they can show different behaviours even within the same condition. Samples can be processed in a 24-h window if they have been kept in 4°C and should not be stored for more than 6 months at -80°C before assayed. Patients do not need to rest before the blood extraction unless they have performed a high-endurance exercise. For comparative studies, sex and age should be accounted for as these parameters can impact CGRP concentrations.
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Affiliation(s)
- Gabriel Gárate
- Instituto de Investigación Marqués de Valdecilla (IDIVAL), Hospital Universitario Marqués de Valdecilla & Universidad de Cantabria, Santander, Spain.
| | - Julio Pascual
- Instituto de Investigación Marqués de Valdecilla (IDIVAL), Hospital Universitario Marqués de Valdecilla & Universidad de Cantabria, Santander, Spain
| | - Marta Pascual-Mato
- Instituto de Investigación Marqués de Valdecilla (IDIVAL), Hospital Universitario Marqués de Valdecilla & Universidad de Cantabria, Santander, Spain
| | - Jorge Madera
- Instituto de Investigación Marqués de Valdecilla (IDIVAL), Hospital Universitario Marqués de Valdecilla & Universidad de Cantabria, Santander, Spain
| | - María Muñoz-San Martín
- Instituto de Investigación Marqués de Valdecilla (IDIVAL), Hospital Universitario Marqués de Valdecilla & Universidad de Cantabria, Santander, Spain
| | - Vicente González-Quintanilla
- Instituto de Investigación Marqués de Valdecilla (IDIVAL), Hospital Universitario Marqués de Valdecilla & Universidad de Cantabria, Santander, Spain
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Petersen AS, Lund N, Meßlinger K, Christensen SL, Barloese M, Jørgensen NR, Kogelman L, Jensen RH. Reduced plasma calcitonin gene-related peptide level identified in cluster headache: A prospective and controlled study. Cephalalgia 2024; 44:3331024231223970. [PMID: 38436282 DOI: 10.1177/03331024231223970] [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] [Indexed: 03/05/2024]
Abstract
BACKGROUND The role of calcitonin gene-related peptide (CGRP) in the cyclic pattern of cluster headache is unclear. To acquire biological insight and to comprehend why only episodic cluster headache responds to CGRP monoclonal antibodies, we examined whether plasma CGRP changes between disease states (i.e. bout, remission and chronic) and controls. METHODS The present study is a prospective case-control study. Participants with episodic cluster headache were sampled twice (bout and remission). Participants with chronic cluster headache and controls were sampled once. CGRP concentrations were measured in plasma with a validated radioimmunoassay. RESULTS Plasma was collected from 201 participants diagnosed with cluster headache according to the International Classification of Headache Disorders, 3rd edition, and from 100 age- and sex-matched controls. Overall, plasma CGRP levels were significantly lower in participants with cluster headache compared to controls (p < 0.05). In episodic cluster headache, CGRP levels were higher in bout than in remission (mean difference: 17.1 pmol/L, 95% confidence interval = 9.8-24.3, p < 0.0001). CGRP levels in bout were not different from chronic cluster headache (p = 0.266). CONCLUSIONS Plasma CGRP is unsuitable as a diagnostic biomarker of cluster headache or its disease states. The identified reduced CGRP levels suggest that CGRPs role in cluster headache is highly complex and future investigations are needed into the modulation of CGRP and its receptors.
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Affiliation(s)
- Anja Sofie Petersen
- Danish Headache Center, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup, Glostrup, Denmark
| | - Nunu Lund
- Danish Headache Center, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup, Glostrup, Denmark
| | - Karl Meßlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sarah Louise Christensen
- Danish Headache Center, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup, Glostrup, Denmark
| | - Mads Barloese
- Danish Headache Center, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup, Glostrup, Denmark
- Department of Clinical Physiology and Nuclear Medicine, Centre for Functional and Diagnostic Imaging and Research, University of Copenhagen, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niklas Rye Jørgensen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Glostrup, Denmark
| | - Lisette Kogelman
- Danish Headache Center, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup, Glostrup, Denmark
| | - Rigmor Højland Jensen
- Danish Headache Center, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup, Glostrup, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Ak AK, Gemici YI, Batum M, Karakaş B, Özmen EY, Gökçay F, Çelebisoy N. Calcitonin gene-related peptide (CGRP) levels in peripheral blood in patients with idiopathic intracranial hypertension and migraine. Clin Neurol Neurosurg 2024; 237:108136. [PMID: 38308939 DOI: 10.1016/j.clineuro.2024.108136] [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: 11/30/2023] [Revised: 01/13/2024] [Accepted: 01/24/2024] [Indexed: 02/05/2024]
Abstract
BACKGROUND Calcitonin gene-related peptide (CGRP) plays a dominant role in migraine. This prospective study was designed to investigate CGRP levels in patients with idiopathic intracranial hypertension (IIH) and compare the results of migraine patients and healthy controls (HC). As a second objective, CGRP levels obtained from IIH patients defining sustained headache after the resolution of papilledema were compared with those not defining post-IIH headache. METHODS Thirty-six patients with IIH, 36 with episodic migraine (EM), 18 with chronic migraine (CM), and 36 HC were included in the study. CGRP levels were studied from blood samples obtained from the antecubital vein by using a commercial ELISA kit. RESULTS Serum CGRP levels of the patient groups were significantly higher than the HC (p < 0.001). As compared with controls, both CM (p Adj<0.001) and IIH (p Adj=0.039) had significantly increased levels of CGRP. Levels recorded from EM patients did not differ from the HC (p Adj=0.661). In 16 IIH patients, persistent headache was reported after the normalization of intracranial pressure (ICP). Twenty patients did not report post-IIH headaches. Comparison of serum CGRP levels of these two groups revealed significantly higher CGRP levels in patients with sustained headaches obtained from blood samples both at the initial and control visit (p Adj <0.001). CONCLUSIONS CGRP levels of the patient groups were higher than the HC. High levels recorded in patients with IIH indicates the role of CGRP in IIH related headache and even higher levels in patients with sustained headache after normalization of ICP strengthens this finding.
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Affiliation(s)
- Ayşın Kısabay Ak
- Celal Bayar University, Department of Neurology, Manisa 45000, Turkey.
| | | | - Melike Batum
- Celal Bayar University, Department of Neurology, Manisa 45000, Turkey.
| | - Burak Karakaş
- Celal Bayar University, Department of Neurology, Manisa 45000, Turkey.
| | - Eser Yıldırım Özmen
- Ege University Department of Clinical Biochemistry, Bornova, Izmir 35000, Turkey.
| | - Figen Gökçay
- Ege University Department of Neurology, Bornova, Izmir 35000, Turkey.
| | - Neşe Çelebisoy
- Ege University Department of Neurology, Bornova, Izmir 35000, Turkey.
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Cho S, Chu MK. Serological Biomarkers of Chronic Migraine. Curr Pain Headache Rep 2023; 27:531-542. [PMID: 37561314 DOI: 10.1007/s11916-023-01154-x] [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] [Accepted: 07/07/2023] [Indexed: 08/11/2023]
Abstract
PURPOSE OF REVIEW Chronic migraine (CM) is a chronic form of migraine that differs from episodic migraine (EM) in terms of prevalence, comorbidities, response to treatment, and biomarkers. The aim of this review was to summarize the recent findings on serological biomarkers of CM. RECENT FINDINGS Neuronal, inflammatory, and vascular markers have been investigated to assess their diagnostic and prognostic ability and treatment effectiveness. Several markers showed significant alterations according to disease status and treatment response in CM. Calcitonin gene-related peptide (CGRP), glutamate, and adiponectin appear to be the most promising blood biomarkers for CM. Most studies have shown altered ictal and interictal levels of these markers in CM compared with those in EM and controls. Additionally, they showed a significant association with treatment outcomes. Total adiponectin and high-molecular-weight adiponectin levels were less studied as biomarkers of CM than CGRP and glutamate levels but showed promising results. The development of suitable biomarkers could revolutionize the diagnosis and treatment of CM and ultimately decrease the disability and societal costs of the disease.
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Affiliation(s)
- Soomi Cho
- Department of Neurology, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Min Kyung Chu
- Department of Neurology, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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Scher AI, McGinley JS, VanDam LR, Campbell AM, Chai X, Collins B, Klimp SA, Finkel AG, Schwab K, Lipton RB, Johnson KW. Plasma calcitonin gene-related peptide and nerve growth factor as headache and pain biomarkers in recently deployed soldiers with and without a recent concussion. Headache 2023; 63:1240-1250. [PMID: 37796114 DOI: 10.1111/head.14635] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 10/06/2023]
Abstract
OBJECTIVE The objective of this study was to characterize the utility of calcitonin gene-related peptide (CGRP) and nerve growth factor (NGF) as potential biomarkers for headache and pain disorders in the post-military deployment setting. BACKGROUND The need to improve recognition, assessment, and prognoses of individuals with posttraumatic headache or other pain has increased interest in the potential of CGRP and NGF as biomarkers. METHODS The Warrior Strong Study (NCT01847040) is an observational longitudinal study of United States-based soldiers who had recently returned from deployment to Afghanistan or Iraq from 2009 to 2014. The present nested cross-sectional analysis uses baseline data collected from soldiers returning to Fort Bragg, North Carolina. RESULTS In total, 264 soldiers (mean (standard deviation [SD] age 28.1 [6.4] years, 230/264 [87.1%] men, 171/263 [65.0%] White) were analyzed. Mean (SD) plasma levels of CGRP were 1.3 (1.1) pg/mL and mean levels of NGF were 1.4 (0.4) pg/mL. Age was negatively correlated with NGF (-0.01 pg/mL per year, p = 0.007) but was not associated with CGRP. Men had higher mean (SD) CGRP plasma levels than women (1.4 95% confidence interval [CI; 1.2] vs. 0.9 95% CI [0.5] pg/mL, p < 0.002, Kruskal-Wallis test). CGRP levels were lower in participants who had a headache at the time of the blood draw (1.0 [0.6] pg/mL vs. 1.4 [1.2] pg/mL, p = 0.024). NGF was lower in participants with continuous pain (all types; 1.2 [0.4] vs. 1.4 [0.4] pg/mL, p = 0.027) and was lower in participants with traumatic brain injury (TBI) + posttraumatic headache (PTH) versus TBI without PTH (1.3 [0.3] vs. 1.4 [0.4] pg/mL, p = 0.021). Otherwise, CGRP and NGF were not associated with migraine-like headache, TBI status, or headache burden as measured by the number of medical encounters in crude or adjusted models. CONCLUSION In this exploratory study, plasma levels of NGF and CGRP showed promise as biomarkers for headache and other types of pain. These findings need to be replicated in other cohorts.
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Affiliation(s)
- Ann I Scher
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | | | - Lyndsey R VanDam
- Pain Research, Eli Lilly and Company, Indianapolis, Indiana, USA
| | | | - Xiyun Chai
- Precision Medicine Neuroscience, AbbVie, Chicago, Illinois, USA
| | - Billy Collins
- US Public Health Service Commissioned Corps, Fayetteville, North Carolina, USA
| | - Scott A Klimp
- Womack Army Medical Center, Fort Bragg, North Carolina, USA
| | - Alan G Finkel
- Carolina Headache Institute, Durham, North Carolina, USA
| | - Karen Schwab
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | | | - Kirk W Johnson
- Pain Research, Eli Lilly and Company, Indianapolis, Indiana, USA
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Tchivileva IE, Johnson KW, Chai X, VanDam LR, Lim PF, Slade GD. Evaluation of Plasma Calcitonin Gene-Related Peptide as a Biomarker for Painful Temporomandibular Disorder and Migraine. J Pain Res 2023; 16:2331-2346. [PMID: 37456357 PMCID: PMC10349596 DOI: 10.2147/jpr.s408044] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023] Open
Abstract
Objective To assess associations of plasma calcitonin gene-related peptide (CGRP) with chronic temporomandibular disorder (TMD) myalgia/arthralgia or frequent/chronic migraine, alone and in combination, and to evaluate relations between the CGRP concentration and clinical, psychological, and somatosensory characteristics of participants. Methods The cross-sectional study selected four groups of adult volunteers: healthy controls (HCs), TMD without migraine, migraine without TMD, and TMD with migraine. Each group comprised 20 participants, providing 94% power to detect statistically significant associations with CGRP concentration for either TMD or migraine. TMD and headache were classified according to the Diagnostic Criteria for TMD and the International Classification for Headache Disorders, 3rd edition, respectively. Plasma CGRP was quantified with a validated high-sensitivity electrochemiluminescent Meso Scale Discovery assay. Questionnaires and clinical examinations were used to evaluate characteristics of TMD, headache, psychological distress, and pressure pain sensitivity. Univariate regression models quantified associations of the CGRP concentration with TMD, migraine, and their interaction. Univariate associations of the CGRP concentration with clinical, psychological, and pressure pain characteristics were also assessed. Results Among 80 participants enrolled, neither TMD nor migraine was associated with plasma CGRP concentration (P = 0.761 and P = 0.972, respectively). The CGRP concentration (mean ± SD) was similar in all 4 groups: HCs 2.0 ± 0.7 pg/mL, TMD 2.1 ± 0.8 pg/mL, migraine 2.1 ± 0.9 pg/mL, and TMD with migraine 2.2 ± 0.7 pg/mL. CGRP concentration was positively associated with age (P = 0.034) and marginally with body mass index (P = 0.080) but was unrelated to other participant characteristics. Conclusion In this well-powered study, interictal plasma concentration of CGRP was a poor biomarker for TMD and migraine.
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Affiliation(s)
- Inna E Tchivileva
- Center for Pain Research and Innovation, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Division of Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kirk W Johnson
- Pain Research, Eli Lilly and Company, Indianapolis, IN, USA
| | - Xiyun Chai
- Precision Medicine Neuroscience, AbbVie, Chicago, IL, USA
| | | | - Pei Feng Lim
- Center for Pain Research and Innovation, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Division of Diagnostic Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Gary D Slade
- Center for Pain Research and Innovation, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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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: 23] [Impact Index Per Article: 23.0] [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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Russo AF, Hay DL. CGRP physiology, pharmacology, and therapeutic targets: migraine and beyond. Physiol Rev 2023; 103:1565-1644. [PMID: 36454715 PMCID: PMC9988538 DOI: 10.1152/physrev.00059.2021] [Citation(s) in RCA: 66] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022] Open
Abstract
Calcitonin gene-related peptide (CGRP) is a neuropeptide with diverse physiological functions. Its two isoforms (α and β) are widely expressed throughout the body in sensory neurons as well as in other cell types, such as motor neurons and neuroendocrine cells. CGRP acts via at least two G protein-coupled receptors that form unusual complexes with receptor activity-modifying proteins. These are the CGRP receptor and the AMY1 receptor; in rodents, additional receptors come into play. Although CGRP is known to produce many effects, the precise molecular identity of the receptor(s) that mediates CGRP effects is seldom clear. Despite the many enigmas still in CGRP biology, therapeutics that target the CGRP axis to treat or prevent migraine are a bench-to-bedside success story. This review provides a contextual background on the regulation and sites of CGRP expression and CGRP receptor pharmacology. The physiological actions of CGRP in the nervous system are discussed, along with updates on CGRP actions in the cardiovascular, pulmonary, gastrointestinal, immune, hematopoietic, and reproductive systems and metabolic effects of CGRP in muscle and adipose tissues. We cover how CGRP in these systems is associated with disease states, most notably migraine. In this context, we discuss how CGRP actions in both the peripheral and central nervous systems provide a basis for therapeutic targeting of CGRP in migraine. Finally, we highlight potentially fertile ground for the development of additional therapeutics and combinatorial strategies that could be designed to modulate CGRP signaling for migraine and other diseases.
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Affiliation(s)
- Andrew F Russo
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, Iowa
- Department of Neurology, University of Iowa, Iowa City, Iowa
- Center for the Prevention and Treatment of Visual Loss, Department of Veterans Affairs Health Center, Iowa City, Iowa
| | - Debbie L Hay
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, New Zealand
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12
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Neyal A, Ekmekyapar Fırat Y, Çekmen MB, Kılıçparlar Cengiz E, Koç Ada S, Neyal AM. Calcitonin Gene-Related Peptide and Adrenomedullin Levels During Ictal and Interictal Periods in Patients With Migraine. Cureus 2023; 15:e37843. [PMID: 37214082 PMCID: PMC10198585 DOI: 10.7759/cureus.37843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 05/23/2023] Open
Abstract
Background Peptides related to calcitonin gene-related peptide (CGRP) have been suggested to have a role in migraine. Adrenomedullin (AM) might be a candidate molecule because it is related to pain pathways in the peripheral and central nervous systems and uses the same receptors as CGRP. Methodology In this study, we examined the serum CGRP and AM levels during unprovoked ictal and interictal periods of 30 migraine patients as well as 25 healthy controls. Another focus of this study was on the association of CGRP and AM levels with clinical features. Results Mean serum AM levels were 15.80 pg/mL (11.91-21.43 pg/mL) in the ictal and 15.85 pg/mL (12.25-19.29 pg/mL) in the interictal periods in the migraine group and 13.36 pg/mL (10.84-17.18 pg/mL) in the control group. Mean serum CGRP levels were 2.93 pg/mL (2.45-3.90 pg/mL) in the ictal and 3.25 pg/mL (2.85-4.67 pg/mL) in the interictal periods in the migraine group and 3.03 pg/mL (2.48-3.80 pg/mL) in the control group. There were no statistical differences between ictal and/or interictal AM and CGRP levels (p = 0.558 and p = 0.054, respectively) which were also comparable with the results of the control group (p = 0.230, p = 0.295, p = 0.987, p = 0.139, respectively). Ictal serum CGRP and/or AM levels did not correlate with any of the reported clinical features. Conclusions Serum AM and CGRP levels are similar in interictal and unprovoked ictal periods in migraine patients and as well in controls. These results do not indicate that these molecules do not have a role in migraine pathophysiology. Considering the broad mechanisms of action of peptides in the CGRP family, further studies are needed in larger cohorts.
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Affiliation(s)
- Abdurrahman Neyal
- Department of Neurology, Gaziantep Islam Science and Technology University School of Medicine, Gaziantep, TUR
| | | | - Mustafa B Çekmen
- Department of Medical Biochemistry, Istanbul Medeniyet University School of Medicine, Istanbul, TUR
| | | | - Saniye Koç Ada
- Department of Medical Biochemistry, Istanbul Medeniyet University School of Medicine, Istanbul, TUR
| | - Ayşe M Neyal
- Department of Neurology, Sanko University School of Medicine, Gaziantep, TUR
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13
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Demartini C, Francavilla M, Zanaboni AM, Facchetti S, De Icco R, Martinelli D, Allena M, Greco R, Tassorelli C. Biomarkers of Migraine: An Integrated Evaluation of Preclinical and Clinical Findings. Int J Mol Sci 2023; 24:ijms24065334. [PMID: 36982428 PMCID: PMC10049673 DOI: 10.3390/ijms24065334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
In recent years, numerous efforts have been made to identify reliable biomarkers useful in migraine diagnosis and progression or associated with the response to a specific treatment. The purpose of this review is to summarize the alleged diagnostic and therapeutic migraine biomarkers found in biofluids and to discuss their role in the pathogenesis of the disease. We included the most informative data from clinical or preclinical studies, with a particular emphasis on calcitonin gene-related peptide (CGRP), cytokines, endocannabinoids, and other biomolecules, the majority of which are related to the inflammatory aspects and mechanisms of migraine, as well as other actors that play a role in the disease. The potential issues affecting biomarker analysis are also discussed, such as how to deal with bias and confounding data. CGRP and other biological factors associated with the trigeminovascular system may offer intriguing and novel precision medicine opportunities, although the biological stability of the samples used, as well as the effects of the confounding role of age, gender, diet, and metabolic factors should be considered.
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Affiliation(s)
- Chiara Demartini
- Department of Brain and Behavioral Sciences, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Miriam Francavilla
- Department of Brain and Behavioral Sciences, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Anna Maria Zanaboni
- Department of Brain and Behavioral Sciences, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Sara Facchetti
- Department of Brain and Behavioral Sciences, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
| | - Roberto De Icco
- Department of Brain and Behavioral Sciences, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Daniele Martinelli
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Marta Allena
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Rosaria Greco
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
- Correspondence: ; Tel.: +39-(0382)-380255
| | - Cristina Tassorelli
- Department of Brain and Behavioral Sciences, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
- Unit of Translational Neurovascular Research, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
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14
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Vural S, Albayrak L. Can calcitonin gene-related peptide (CGRP) and pentraxin-3 (PTX-3) be useful in diagnosing acute migraine attack? J Recept Signal Transduct Res 2022; 42:562-566. [PMID: 35895308 DOI: 10.1080/10799893.2022.2097264] [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: 12/15/2022]
Abstract
PURPOSE Even if migraine is not fatal, it is a common and challenging disease with adverse effects on individuals' lives. The lack of objective diagnostic tools causes delays in diagnosis and treatment initiation. The primary aim of this study is to reveal the diagnostic value of Calcitonin Gene-Related Peptide (CGRP) and Pentraxin-3 (PTX-3) in acute migraine. To this aim, we compared the serum CGRP and PTX-3 levels of migraine patients with acute attacks to those in healthy individuals. MATERIAL AND METHOD A total of 135 individuals (85 patients with migraine attacks with or without aura and 50 healthy controls) participated in the study. Serum CGRP and PTX-3 levels were measured with ELISA analysis. A p value less than 0.05 was considered significant. RESULTS Serum CGRP [146.70 (21.52-413.67) vs. 65.90 (3.80-256.60) pg/mL] and PTX-3 levels [12.71 (0.62-33.97) vs. 1.01 (0.06-9.48) ng/mL] were higher in patients with migraine attack than the control group (p < 0.01 and p < 0.01, respectively). ROC analysis showed that the cutoff value for serum CGRP was 121.39 pg/mL (AUC: 0.751, Sen:%61, Spe:%64) whereas the cutoff value for PTX-3 was 4,06 ng/mL (AUC:0.876, Sen:%73, Spe:%76). Serum CGRP levels were positively correlated with pain intensity. Serum CGRP and PTX-3 levels did not differ across gender groups and presence of aura in subgroup analysis. CONCLUSION Patients with acute migraine attacks have higher serum CGRP and PTX-3 levels than controls. Both biomarkers show high potential for the diagnosis of a migraine attack.
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Affiliation(s)
- Sevilay Vural
- Department of Emergency Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Levent Albayrak
- Department of Emergency Medicine, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
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15
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Garelja ML, Hay DL. A narrative review of the calcitonin peptide family and associated receptors as migraine targets: Calcitonin gene-related peptide and beyond. Headache 2022; 62:1093-1104. [PMID: 36226379 PMCID: PMC9613588 DOI: 10.1111/head.14388] [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] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/08/2022] [Accepted: 06/30/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To summarize the pharmacology of the calcitonin peptide family of receptors and explore their relationship to migraine and current migraine therapies. BACKGROUND Therapeutics that dampen calcitonin gene-related peptide (CGRP) signaling are now in clinical use to prevent or treat migraine. However, CGRP belongs to a broader peptide family, including the peptides amylin and adrenomedullin. Receptors for this family are complex, displaying overlapping pharmacologic profiles. Despite the focus on CGRP and the CGRP receptor in migraine research, recent evidence implicates related peptides and receptors in migraine. METHODS This narrative review summarizes literature encompassing the current pharmacologic understanding of the calcitonin peptide family, and the evidence that links specific members of this family to migraine and migraine-like behaviors. RESULTS Recent work links amylin and adrenomedullin to migraine-like behavior in rodent models and migraine-like attacks in individuals with migraine. We collate novel information that suggests females may be more sensitive to amylin and CGRP in the context of migraine-like behaviors. We report that drugs designed to antagonize the canonical CGRP receptor also antagonize a second CGRP-responsive receptor and speculate as to whether this influences therapeutic efficacy. We also discuss the specificity of current drugs with regards to CGRP isoforms and how this may influence therapeutic profiles. Lastly, we emphasize that receptors related to, but distinct from, the canonical CGRP receptor may represent underappreciated and novel drug targets. CONCLUSION Multiple peptides within the calcitonin family have been linked to migraine. The current focus on CGRP and its canonical receptor may be obscuring pathways to further therapeutics. Drug discovery schemes that take a wider view of the receptor family may lead to the development of new anti-migraine drugs with favorable clinical profiles. We also propose that understanding these related peptides and receptors may improve our interpretation regarding the mechanism of action of current drugs.
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Affiliation(s)
- Michael L. Garelja
- Department of Pharmacology and ToxicologyUniversity of OtagoDunedinNew Zealand
| | - Debbie L. Hay
- Department of Pharmacology and ToxicologyUniversity of OtagoDunedinNew Zealand,Maurice Wilkins Centre for Molecular BiodiscoveryUniversity of AucklandAucklandNew Zealand
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16
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Calcitonin Gene-Related Peptide (CGRP) and Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP) in Migraine Pathogenesis. Pharmaceuticals (Basel) 2022; 15:ph15101189. [PMID: 36297301 PMCID: PMC9612382 DOI: 10.3390/ph15101189] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
Migraine is a prevalent and debilitating neurologic disorder. Advancements in understanding the underlying pathophysiological mechanisms are spearheading the effort to introduce disease-specific treatment options. In recent years this effort has largely focused on alteration of endogenous neuropeptide signaling, namely the peptides calcitonin gene-related peptide (CGRP) and pituitary adenylate cyclase-activating polypeptide (PACAP). Human studies into the pathophysiological underpinnings of CGRP and PACAP in migraine are manifold and here we review the works investigating these neuropeptides in patients suffering from migraine in order to elucidate the background for developing new treatment options for this vastly disabling disorder.
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17
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Alpuente A, Gallardo VJ, Asskour L, Caronna E, Torres‐Ferrus M, Pozo‐Rosich P. Salivary
CGRP
and Erenumab Treatment Response: Towards Precision Medicine in Migraine. Ann Neurol 2022; 92:846-859. [DOI: 10.1002/ana.26472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Alicia Alpuente
- Headache Clinic, Neurology Department Vall d'Hebron University Hospital Barcelona Spain
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
| | - Victor J Gallardo
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
| | - Laila Asskour
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
| | - Edoardo Caronna
- Headache Clinic, Neurology Department Vall d'Hebron University Hospital Barcelona Spain
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
| | - Marta Torres‐Ferrus
- Headache Clinic, Neurology Department Vall d'Hebron University Hospital Barcelona Spain
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
| | - Patricia Pozo‐Rosich
- Headache Clinic, Neurology Department Vall d'Hebron University Hospital Barcelona Spain
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
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18
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Kamm K. CGRP and Migraine: What Have We Learned From Measuring CGRP in Migraine Patients So Far? Front Neurol 2022; 13:930383. [PMID: 35968305 PMCID: PMC9363780 DOI: 10.3389/fneur.2022.930383] [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: 04/27/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022] Open
Abstract
The multi-functional neuropeptide calcitonin gene-related peptide (CGRP) plays a major role in the pathophysiology of migraine. The detection of elevated CGRP levels during acute migraine headache was the first evidence of the importance of the peptide. Since then, elevated CGRP levels have been detected not only during spontaneous and experimentally induced migraine attacks but also interictally. However, the detection of CGRP in peripheral blood shows conflicting results. In this respect, alternative detection methods are needed and have been already proposed. This article summarizes what we have learned from studies investigating CGRP in jugular and peripheral blood and reviews the latest state of research concerning the detection of CGRP in saliva and tear fluid as well as their contribution to our understanding of migraine pathophysiology.
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19
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Olesen J. Personal view: Modelling pain mechanisms of migraine without aura. Cephalalgia 2022; 42:1425-1435. [PMID: 35796522 DOI: 10.1177/03331024221111529] [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: 11/17/2022]
Abstract
INTRODUCTION This review aims to model migraine nociception. METHODS Personal experience and litterature. RESULTS Genetic and environmental factors in combination decide whether a person suffers from migraine. Endogenous and/or exogenous factors precipitate the individual attacks. Nociception takes place around blood vessels. There is a growing understanding of the molecular pathophysiological mechanisms of migraine from human provocation studies. Rodent models of migraine are necessary to understand the complex interrelation between the many putatively involved molecules and tissues but their relevance for human migraine is uncertain. The crucial element in migraine nociception is a unit consisting of endothelial cells, vascular smooth muscle cells, perivascular nerve fibers (trigeminal, parasympathetic and sympathetic) and mast cells. Attacks may start outside the brain by humoral or neurogenic activity releasing nociceptive substances around blood vessels. They may also (perhaps more often) start by the brain generating efferent activity in autonomic and somatic nerves. CONCLUSION Human and rodent studies can quickly uncover the "mystery of migraine".
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Affiliation(s)
- Jes Olesen
- Department of Neurology, Danish Headache Center, Copenhagen University Hospital, Glostrup, Denmark
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20
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Is calcitonin gene-related peptide a reliable biochemical marker of migraine? Curr Opin Neurol 2022; 35:343-352. [PMID: 35674078 DOI: 10.1097/wco.0000000000001053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The aim of this study was to provide an overview of clinical studies on calcitonin gene-related peptide (CGRP) measurements in body fluids of migraine patients and to discuss the validity of CGRP measurement as a clinical biomarker of migraine. RECENT FINDINGS Several studies have reported increased CGRP levels in venous blood, saliva and tear fluid of migraine patients compared with healthy controls and in migraine patients during attacks compared with the interictal state, suggesting that CGRP may be a feasible biomarker of migraine. However, the findings of studies investigating CGRP levels in migraine patients are generally conflicting and measurements of CGRP levels are challenged by several methodological issues. Reported differences in CGRP levels between patients with chronic migraine relative to episodic migraine have also been inconsistent. There is also a well documented involvement of CGRP in several nonmigraine pain disorders, including cluster headache and common pain conditions such as osteoarthritis. SUMMARY Current evidence does not justify the usage of CGRP levels as a biomarker for diagnosing migraine or for determining the severity of the disease in individual patients. However, CGRP measurements could prove useful in the future as clinically relevant biomarkers for predicting the response to therapy, including anti-CGRP migraine drugs.
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21
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Fila M, Sobczuk A, Pawlowska E, Blasiak J. Epigenetic Connection of the Calcitonin Gene-Related Peptide and Its Potential in Migraine. Int J Mol Sci 2022; 23:ijms23116151. [PMID: 35682830 PMCID: PMC9181031 DOI: 10.3390/ijms23116151] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 02/06/2023] Open
Abstract
The calcitonin gene-related peptide (CGRP) is implicated in the pathogenesis of several pain-related syndromes, including migraine. Targeting CGRP and its receptor by their antagonists and antibodies was a breakthrough in migraine therapy, but the need to improve efficacy and limit the side effects of these drugs justify further studies on the regulation of CGRP in migraine. The expression of the CGRP encoding gene, CALCA, is modulated by epigenetic modifications, including the DNA methylation, histone modification, and effects of micro RNAs (miRNAs), circular RNAs, and long-coding RNAs (lncRNAs). On the other hand, CGRP can change the epigenetic profile of neuronal and glial cells. The promoter of the CALCA gene has two CpG islands that may be specifically methylated in migraine patients. DNA methylation and lncRNAs were shown to play a role in the cell-specific alternative splicing of the CALCA primary transcript. CGRP may be involved in changes in neural cytoarchitecture that are controlled by histone deacetylase 6 (HDAC6) and can be related to migraine. Inhibition of HDAC6 results in reduced cortical-spreading depression and a blockade of the CGRP receptor. CGRP levels are associated with the expression of several miRNAs in plasma, making them useful peripheral markers of migraine. The fundamental role of CGRP in inflammatory pain transmission may be epigenetically regulated. In conclusion, epigenetic connections of CGRP should be further explored for efficient and safe antimigraine therapy.
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Affiliation(s)
- Michal Fila
- Department of Developmental Neurology and Epileptology, Polish Mother’s Memorial Hospital Research Institute, 93-338 Lodz, Poland;
| | - Anna Sobczuk
- Department of Gynaecology and Obstetrics, Medical University of Lodz, 93-338 Lodz, Poland;
| | - Elzbieta Pawlowska
- Department of Orthodontics, Medical University of Lodz, 92-217 Lodz, Poland;
| | - Janusz Blasiak
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
- Correspondence:
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22
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Pellesi L, Al-Karagholi MAM, De Icco R, Chaudhry BA, Lopez CL, Snellman J, Hannibal J, Amin FM, Ashina M. Plasma Levels of CGRP During a 2-h Infusion of VIP in Healthy Volunteers and Patients With Migraine: An Exploratory Study. Front Neurol 2022; 13:871176. [PMID: 35432170 PMCID: PMC9011105 DOI: 10.3389/fneur.2022.871176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
Introduction The activation of perivascular fibers and the consequent release of vasoactive peptides, including the vasoactive intestinal polypeptide (VIP), play a role in migraine pathogenesis. A 2-h infusion of VIP provoked migraine, but the mechanisms remain unknown. We investigated whether 2-h infusion of VIP caused alterations in plasma levels of the calcitonin gene-related peptide (CGRP) and whether any changes might be related to the induced migraine attacks. Materials and Methods We enrolled individuals with episodic migraine without aura and healthy participants to randomly receive a 2-h infusion of either VIP (8 pmol/kg/min) or placebo (sterile saline) in two randomized, placebo-controlled crossover trials. We collected clinical data and measured plasma levels of VIP and CGRP at fixed time points: at baseline (T0) and every 30 min until 180 min (T180) after the start of the infusion. Results Blood samples were collected from patients with migraine (n = 19) and healthy individuals (n = 12). During VIP infusion, mixed effects analysis revealed a significant increase in plasma CGRP (p = 0.027) at T30 (vs. T180, adjusted p-value = 0.039) and T60 (vs. T180, adjusted p-value = 0.027) in patients with migraine. We found no increase in plasma CGRP during VIP-induced migraine attacks (p = 0.219). In healthy individuals, there was no increase in plasma CGRP during VIP (p = 0.205) or placebo (p = 0.428) days. Discussion Plasma CGRP was elevated in patients with migraine during a prolonged infusion of VIP, but these alterations were not associated with VIP-induced migraine attacks. Given the exploratory design of our study, further investigations are needed to clarify the role of CGRP in VIP-induced migraine. Clinical Trial Registration ClinicalTrials.gov, identifier: NCT03989817 and NCT04260035.
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Affiliation(s)
- Lanfranco Pellesi
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mohammad Al-Mahdi Al-Karagholi
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Roberto De Icco
- Headache Science & Neurorehabilitation Center, Istituto Neurologico Nazionale a Carattere Scientifico (IRCCS) Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Basit Ali Chaudhry
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Jens Hannibal
- Department of Clinical Biochemistry, Bispebjerg Frederiksberg Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Faisal Mohammad Amin
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Neurorehabilitation and Traumatic Brain Injury, Rigshospitalet, Copenhagen, Denmark
| | - Messoud Ashina
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- *Correspondence: Messoud Ashina
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23
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Rustichelli C, Avallone R, Ferrari A. Atogepant: an emerging treatment for migraine. Expert Opin Pharmacother 2022; 23:653-662. [PMID: 35319319 DOI: 10.1080/14656566.2022.2057221] [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] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Until recently, only nonspecific and not always well-tolerated medications were available for migraine prophylaxis. Currently, specific drugs such as calcitonin gene-related peptide (CGRP) monoclonal antibodies and second-generation gepants are marketed for migraine treatment. Atogepant, an orally active small molecule, is a potent, selective antagonist of the CGRP receptor and is the only gepant authorized exclusively for episodic migraine prophylaxis in adults. AREAS COVERED Using literature obtained from PubMed, Scopus, Web of Science, Cochrane, and ClinicalTrials.gov (up to February 13rd, 2022), the authors summarize and evaluate the available data on atogepant for the prophylaxis of episodic migraine. EXPERT OPINION From pivotal trials, the efficacy and tolerability of atogepant in episodic migraine prophylaxis seem comparable to those of CGRP monoclonal antibodies, even if comparative studies have not been conducted. To date, limited information is available on atogepant, including the optimal dose and duration of therapy; hence, it is difficult to establish whether it could be a first-line drug for migraine prophylaxis. Furthermore, it is important to evaluate if atogepant use is associated with the risk of cardiovascular and cerebrovascular events, which could result from potent and persistent blockade of vasodilation by CGRP.
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Affiliation(s)
- Cecilia Rustichelli
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi, Modena, Italy
| | - Rossella Avallone
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi, Modena, Italy
| | - Anna Ferrari
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, via del Pozzo, Modena, Italy
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24
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Simonetta I, Riolo R, Todaro F, Tuttolomondo A. New Insights on Metabolic and Genetic Basis of Migraine: Novel Impact on Management and Therapeutical Approach. Int J Mol Sci 2022; 23:3018. [PMID: 35328439 PMCID: PMC8955051 DOI: 10.3390/ijms23063018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/05/2022] [Accepted: 03/07/2022] [Indexed: 12/12/2022] Open
Abstract
Migraine is a hereditary disease, usually one-sided, sometimes bilateral. It is characterized by moderate to severe pain, which worsens with physical activity and may be associated with nausea and vomiting, may be accompanied by photophobia and phonophobia. The disorder can occur at any time of the day and can last from 4 to 72 h, with and without aura. The pathogenic mechanism is unclear, but extensive preclinical and clinical studies are ongoing. According to electrophysiology and imaging studies, many brain areas are involved, such as cerebral cortex, thalamus, hypothalamus, and brainstem. The activation of the trigeminovascular system has a key role in the headache phase. There also appears to be a genetic basis behind the development of migraine. Numerous alterations have been identified, and in addition to the genetic cause, there is also a close association with the surrounding environment, as if on the one hand, the genetic alterations may be responsible for the onset of migraine, on the other, the environmental factors seem to be more strongly associated with exacerbations. This review is an analysis of neurophysiological mechanisms, neuropeptide activity, and genetic alterations that play a fundamental role in choosing the best therapeutic strategy. To date, the goal is to create a therapy that is as personalized as possible, and for this reason, steps forward have been made in the pharmacological field in order to identify new therapeutic strategies for both acute treatment and prophylaxis.
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Affiliation(s)
- Irene Simonetta
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant Excellence and Internal and Specialized Medicine (ProMISE) G. D’Alessandro, University of Palermo, Piazza delle Cliniche n.2, 90127 Palermo, Italy; (I.S.); (R.R.); (F.T.)
- Molecular and Clinical Medicine PhD Programme, University of Palermo, P.zza delle Cliniche n.2, 90127 Palermo, Italy
| | - Renata Riolo
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant Excellence and Internal and Specialized Medicine (ProMISE) G. D’Alessandro, University of Palermo, Piazza delle Cliniche n.2, 90127 Palermo, Italy; (I.S.); (R.R.); (F.T.)
| | - Federica Todaro
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant Excellence and Internal and Specialized Medicine (ProMISE) G. D’Alessandro, University of Palermo, Piazza delle Cliniche n.2, 90127 Palermo, Italy; (I.S.); (R.R.); (F.T.)
| | - Antonino Tuttolomondo
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant Excellence and Internal and Specialized Medicine (ProMISE) G. D’Alessandro, University of Palermo, Piazza delle Cliniche n.2, 90127 Palermo, Italy; (I.S.); (R.R.); (F.T.)
- Molecular and Clinical Medicine PhD Programme, University of Palermo, P.zza delle Cliniche n.2, 90127 Palermo, Italy
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Abstract
Migraine is a common, chronic, disorder that is typically characterized by recurrent disabling attacks of headache and accompanying symptoms, including aura. The aetiology is multifactorial with rare monogenic variants. Depression, epilepsy, stroke and myocardial infarction are comorbid diseases. Spreading depolarization probably causes aura and possibly also triggers trigeminal sensory activation, the underlying mechanism for the headache. Despite earlier beliefs, vasodilation is only a secondary phenomenon and vasoconstriction is not essential for antimigraine efficacy. Management includes analgesics or NSAIDs for mild attacks, and, for moderate or severe attacks, triptans or 5HT1B/1D receptor agonists. Because of cardiovascular safety concerns, unreliable efficacy and tolerability issues, use of ergots to abort attacks has nearly vanished in most countries. CGRP receptor antagonists (gepants) and lasmiditan, a selective 5HT1F receptor agonist, have emerged as effective acute treatments. Intramuscular onabotulinumtoxinA may be helpful in chronic migraine (migraine on ≥15 days per month) and monoclonal antibodies targeting CGRP or its receptor, as well as two gepants, have proven effective and well tolerated for the preventive treatment of migraine. Several neuromodulation modalities have been approved for acute and/or preventive migraine treatment. The emergence of new treatment targets and therapies illustrates the bright future for migraine management.
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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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Alpuente A, Gallardo VJ, Asskour L, Caronna E, Torres-Ferrus M, Pozo-Rosich P. Salivary CGRP can monitor the different migraine phases: CGRP (in)dependent attacks. Cephalalgia 2021; 42:186-196. [PMID: 34601944 DOI: 10.1177/03331024211040467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND CGRP plays a key role in the transmission and modulation of nociceptive signals and is a critical component in the pathogenesis of migraine. OBJECTIVE To assess saliva as a substrate to measure CGRP by comparing interictal levels in patients with episodic migraine and controls; and to evaluate CGRP's temporal profile during migraine attacks. METHODS This prospective observational pilot study included young women with episodic migraine and healthy controls. We monitored salivary CGRP-like immunoreactivity (CGRP-LI) during 30 consecutive days and during migraine attacks. We considered six timepoints for the analysis: interictal (72h headache free), preictal (PRE-24h before the attack), ictal (headache onset, after 2h, after 8h), postictal (POST-24h after the attack). CGRP levels were quantified by ELISA. RESULTS 44 women (22 with episodic migraine, 22 healthy controls) were recruited. Differences in interictal salivary levels of CGRP between patients and controls (Me [IQR]: 98.0 [80.3] (95% CI 56.6, 124.0) vs. 54.3 [44.0] (95% CI 42.2, 70.1) pg/mL, p = 0.034) were found. An increase in CGRP levels during migraine attacks was detected (pre:169.0 [95% CI 104.2-234.0]; headache onset: 247.0 [181.9-312.0]; after 2h: 143.0 [77.6-208.0]; after 8h: 169.0 [103.5-234.0], post: 173.0 [107.8-238.0]). Patients were classified as having CGRP-dependent (79.6%) and non-CGRP dependent migraine attacks (20.4%) according to the magnitude of change between preictal and ictal phase. Accompanying symptoms such as photophobia and phonophobia were significantly associated to the first group. CONCLUSIONS Salivary CGRP-LI levels, which interictally are elevated in episodic migraine patients, usually increase during a migraine attack in the majority of patients. However, not every attack is CGRP-dependent, which in turn, might explain different underlying pathophysiology and response to treatment.
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Affiliation(s)
- Alicia Alpuente
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain.,Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Victor J Gallardo
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laila Asskour
- Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Edoardo Caronna
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain.,Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Marta Torres-Ferrus
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain.,Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Patricia Pozo-Rosich
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain.,Headache and Neurological Pain Research Group, Vall d'Hebron Research Institute, Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
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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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Messlinger K, Vogler B, Kuhn A, Sertel-Nakajima J, Frank F, Broessner G. CGRP measurements in human plasma - a methodological study. Cephalalgia 2021; 41:1359-1373. [PMID: 34266288 PMCID: PMC8592105 DOI: 10.1177/03331024211024161] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background Calcitonin gene-related peptide plasma levels have frequently been determined as a biomarker for primary headaches. However, published data is often inconsistent resulting from different methods that are not precisely described in most studies. Methods We applied a well-proven enzyme-linked immunosorbent assay to measure calcitonin gene-related peptide concentrations in human blood plasma, we modified parameters of plasma preparation and protein purification and used calcitonin gene-related peptide-free plasma for standard solutions, which are described in detail. Results Calcitonin gene-related peptide levels are stable in plasma with peptidase inhibitors and after deep-freezing. Calcitonin gene-related peptide standard solutions based on synthetic intercellular fluid or pooled plasma with pre-absorbed calcitonin gene-related peptide influenced the measurements but yielded both comprehensible results. In a sample of 56 healthy subjects the calcitonin gene-related peptide plasma levels varied considerably from low (<50 pg/mL) to very high (>500 pg/mL) values. After a 12-hour exposure of these subjects to normobaric hypoxia the individual calcitonin gene-related peptide levels remained stable. Conclusion Buffering with peptidase inhibitors and immediate freezing or processing of plasma samples is essential to achieve reliable measurements. Individuals show considerable differences and partly high calcitonin gene-related peptide plasma levels without detectable pathological reason. Thus plasma measurements are suited particularly to follow calcitonin gene-related peptide levels in longitudinal studies. The use of data for this study was approved by the Ethics Committee of the Medical University of Innsbruck (https://www.i-med.ac.at/ethikkommission/; EK Nr: 1242/2017).
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Affiliation(s)
- Karl Messlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - Birgit Vogler
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - Annette Kuhn
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - Julika Sertel-Nakajima
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - Florian Frank
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Austria
| | - Gregor Broessner
- Department of Neurology, Headache Outpatient Clinic, Medical University of Innsbruck, Austria
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Ashina M, Terwindt GM, Al-Karagholi MAM, de Boer I, Lee MJ, Hay DL, Schulte LH, Hadjikhani N, Sinclair AJ, Ashina H, Schwedt TJ, Goadsby PJ. Migraine: disease characterisation, biomarkers, and precision medicine. Lancet 2021; 397:1496-1504. [PMID: 33773610 DOI: 10.1016/s0140-6736(20)32162-0] [Citation(s) in RCA: 143] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/27/2020] [Accepted: 10/13/2020] [Indexed: 02/07/2023]
Abstract
Migraine is a disabling neurological disorder, diagnosis of which is based on clinical criteria. A shortcoming of these criteria is that they do not fully capture the heterogeneity of migraine, including the underlying genetic and neurobiological factors. This complexity has generated momentum for biomarker research to improve disease characterisation and identify novel drug targets. In this Series paper, we present the progress that has been made in the search for biomarkers of migraine within genetics, provocation modelling, biochemistry, and neuroimaging research. Additionally, we outline challenges and future directions for each biomarker modality. We also discuss the advances made in combining and integrating data from multiple biomarker modalities. These efforts contribute to developing precision medicine that can be applied to future patients with migraine.
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Affiliation(s)
- Messoud Ashina
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Danish Knowledge Center on Headache Disorders, Glostrup, Denmark; Department of Nervous Diseases of the Institute of Professional Education, IM Sechenov First Moscow State Medical University, Moscow, Russia; Department of Neurology, Azerbaijan Medical University, Baku, Azerbaijan.
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Center, Leiden, Netherlands
| | - Mohammad Al-Mahdi Al-Karagholi
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Irene de Boer
- Department of Neurology, Leiden University Medical Center, Leiden, Netherlands
| | - Mi Ji Lee
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Debbie L Hay
- School of Biological Sciences and Centre for Brain Research, University of Auckland, Auckland, New Zealand; Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | - Laura H Schulte
- Clinic for Psychiatry and Psychotherapy, University Medical Center Eppendorf, Hamburg, Germany
| | - Nouchine Hadjikhani
- Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Gillberg Neuropsychiatry Center, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - Alexandra J Sinclair
- Metabolic Neurology, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK; Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Håkan Ashina
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Peter J Goadsby
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
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Excitatory Effects of Calcitonin Gene-Related Peptide (CGRP) on Superficial Sp5C Neurons in Mouse Medullary Slices. Int J Mol Sci 2021; 22:ijms22073794. [PMID: 33917574 PMCID: PMC8038766 DOI: 10.3390/ijms22073794] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/02/2021] [Accepted: 04/04/2021] [Indexed: 11/17/2022] Open
Abstract
The neuromodulator calcitonin gene-related peptide (CGRP) is known to facilitate nociceptive transmission in the superficial laminae of the spinal trigeminal nucleus caudalis (Sp5C). The central effects of CGRP in the Sp5C are very likely to contribute to the activation of central nociceptive pathways leading to attacks of severe headaches like migraine. To examine the potential impacts of CGRP on laminae I/II neurons at cellular and synaptic levels, we performed whole-cell patch-clamp recordings in juvenile mouse brainstem slices. First, we tested the effect of CGRP on cell excitability, focusing on neurons with tonically firing action potentials upon depolarizing current injection. CGRP (100 nM) enhanced tonic discharges together with membrane depolarization, an excitatory effect that was significantly reduced when the fast synaptic transmissions were pharmacologically blocked. However, CGRP at 500 nM was capable of exciting the functionally isolated cells, in a nifedipine-sensitive manner, indicating its direct effect on membrane intrinsic properties. In voltage-clamped cells, 100 nM CGRP effectively increased the frequency of excitatory synaptic inputs, suggesting its preferential presynaptic effect. Both CGRP-induced changes in cell excitability and synaptic drives were prevented by the CGRP receptor inhibitor BIBN 4096BS. Our data provide evidence that CGRP increases neuronal activity in Sp5C superficial laminae by dose-dependently promoting excitatory synaptic drive and directly enhancing cell intrinsic properties. We propose that the combination of such pre- and postsynaptic actions of CGRP might underlie its facilitation in nociceptive transmission in situations like migraine with elevated CGRP levels.
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Latif R, Rafique N, Al Asoom L, Alsunni AA, Salem AM, AlNoaimi DA, AlHarbi WM, Shaikh AY, AlRaddadi SA, AlMuhaish LA, Almohazey D, Abdulazeez S, Borgio JF. Diagnostic Accuracy of Serum Calcitonin Gene-Related Peptide and Apolipoprotein E in Migraine: A Preliminary Study. Int J Gen Med 2021; 14:851-856. [PMID: 33737829 PMCID: PMC7966296 DOI: 10.2147/ijgm.s303350] [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: 01/22/2021] [Accepted: 02/18/2021] [Indexed: 11/23/2022] Open
Abstract
Background A reliable, migraine-specific biomarker has not been identified so far. Calcitonin Gene-Related Peptide (CGRP) and Apolipoprotein E (ApoE) might serve as migraine biomarkers due to their roles in migraine pathophysiology. However, their diagnostic usefulness has not been explored yet. Present study explored the diagnostic accuracy of CGRP and ApoE in migraine. Methods A cross-sectional, case–control study was conducted from November 2019 to April 2020 at Physiology department of our university. Fourteen female migraine patients, 18–25 years old, with confirmed “Migraine” diagnosis by a neurologist, were recruited. Control group consisted of 14 age-matched healthy females with no personal/family history of migraine. Blood was drawn once from control subjects and twice from migraine patients (ictal and interictal phase). Serum CGRP and ApoE levels were assessed by ELISA. Statistical analysis involved paired t-test, one-way ANOVA, Receiver operating characteristic (ROC) curves and cross-tabs. Results ApoE (mg/dl) was higher significantly in interictal (1.90±0.50) and ictal (1.97±0.65) phases of migraine compared to control (1.07±0.26) (p ≤ 0.001). ROC curves for ApoE were significant in migraine ictal vs control (AUC= 0.91, AUC 95% CI: 0.78–1.0) and migraine interictal vs control (AUC=0.92, AUC 95% CI: 0.8–1.0) subjects. ROC curve for CGRP (pg/mL) was significant in migraine ictal vs control subjects only (AUC=0.79, AUC 95% CI: 0.6–0.97). Conclusion Serum ApoE has “excellent” accuracy to diagnose migraine patients whether in ictal or interictal phase, from healthy subjects. ApoE levels of patients in these two phases of migraine are raised significantly than healthy subjects. CGRP has “fair” diagnostic accuracy to discriminate between migraine ictal phase and healthy subjects. Its levels do not differ significantly among migraine ictal, interictal phase and healthy controls.
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Affiliation(s)
- Rabia Latif
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Nazish Rafique
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Lubna Al Asoom
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ahmed A Alsunni
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ayad Mohammed Salem
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | | | - Ahad Yasir Shaikh
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | | | - Dana Almohazey
- Department of Stem Cell Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sayed Abdulazeez
- Department of Genetic Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - J Francis Borgio
- Department of Genetic Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Shibata M. [Novel migraine treatment with CGRP-related monoclonal antibodies]. Rinsho Shinkeigaku 2020; 60:668-676. [PMID: 32893246 DOI: 10.5692/clinicalneurol.cn-001469] [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] [Indexed: 06/11/2023]
Abstract
Migraine is a common and debilitating neurological disorder characterized by recurrent attacks of moderate to severe throbbing headache accompanied by nausea, vomiting and photophobia/phonophobia. Because of its high prevalence, migraine causes a considerable financial burden on the society as well as impaired quality of life in individual patients. Scientific evidence shows that migraine is a quite complex neurological disorder that involves not only the trigeminovascular and autonomic systems but also the hypothalamus and cerebral cortex. Calcitonin gene-related peptide (CGRP) was originally discovered as a 37-amino acid neuropeptide derived from a calcitonin gene splicing variant. CGRP is found to be expressed in trigeminal ganglion neurons. Much attention has been attracted to this molecule since CGRP was found to be released from trigeminal terminals in animal migraine models. Subsequent studies demonstrated that CGRP administration induced migraine-like headache attacks specifically in migraineurs, thus highlighting a pivotal role of CGRP in the development of migraine attacks. Several CGRP receptor antagonists were shown to be efficacious for the treatment of acute migraine. Among them, telcagepant, was shown to exert a significant migraine prophylactic action as well. Nevertheless, the development of most of these agents were discontinued due to hepatotoxicity. Currently, newer CGRP receptor antagonists are being developed. On the other hand, monoclonal antibodies targeting CGRP and its receptor showed consistent efficacy for migraine prophylaxis with excellent safety profiles in Phase III clinical trials. Furthermore, emerging data support the long-term safety and efficacy of these antibodies. In this review article, the development and perspective of anti-migraine therapeutic strategies using CGRP-related antibodies are discussed.
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Affiliation(s)
- Mamoru Shibata
- Department of Neurology, Tokyo Dental College Ichikawa General Hospital
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Chen ST, Wu JW. A new era for migraine: The role of calcitonin gene-related peptide in the trigeminovascular system. PROGRESS IN BRAIN RESEARCH 2020; 255:123-142. [PMID: 33008504 DOI: 10.1016/bs.pbr.2020.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/26/2020] [Accepted: 05/01/2020] [Indexed: 03/03/2023]
Abstract
There is a huge improvement in our understanding of migraine pathophysiology in the past decades. The activation of the trigeminovascular system has been proved to play a key role in migraine. Calcitonin gene-related peptide (CGRP) and CGRP receptors are widely distributed in the trigeminovascular system. The CGRP is expressed on the C-fibers, and the CGRP receptors are distributed on the A-δ fibers of the trigeminal ganglion and nerves. Further studies found elevated serum CGRP level during migraine attacks, and infusion of CGRP can trigger migraine-like attacks, provide more direct evidence of the link between CGRP and migraine attack. Based on these findings, several treatment options have been designed for migraine treatment, including CGRP receptor antagonists (gepants) and monoclonal antibodies targeting CGRP or CGRP receptors. The clinical trials show both gepants and monoclonal antibodies are effective for migraine treatment. In this section, we describe the roles of the trigeminovascular system in migraine, the discovery of CGRP, and the CGRP signaling pathway.
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Affiliation(s)
- Shu-Ting Chen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jr-Wei Wu
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.
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Serum CGRP, VIP, and PACAP usefulness in migraine: a case-control study in chronic migraine patients in real clinical practice. Mol Biol Rep 2020; 47:7125-7138. [PMID: 32951099 DOI: 10.1007/s11033-020-05781-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/28/2020] [Indexed: 01/03/2023]
Abstract
Calcitonin gene-related peptide (CGRP), vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating polypetide-38 (PACAP-38) have relevant roles in migraine pathophysiology. Their serum levels have been proposed as biomarkers for migraine. Our aim was to assess their diagnostic value in real clinical practice in a cohort of chronic migraine (CM), episodic migraine (EM) and healthy controls (HC). We recruited subjects with CM, EM and HC at two medical centers. Blood samples were drawn under fasting conditions in the interictal period, immediately centrifuged and stored at - 80 ºC. Serum levels were determined by ELISA. Neuropeptide levels, the effect of preventatives, correlations with clinical and demographic variables, and their diagnostic value were studied among clinical categories. 296 age- and sex-matched subjects (101 CM, 98 EM and 97 HC) were included. All three neuropeptide serum levels were higher in CM [median and IQ for CGRP = 18.023 pg/ml (14.4-24.7); VIP = 121.732 pg/ml (48.72-186.72) and PACAP = 204.931 pg/ml (101.08-597.64)] vs EM [CGRP = 14.659 pg/ml (10.29-17.45); VIP = 75.603 pg/ml (28.722-107.10); and PACAP = 94.992 pg/ml (65.77-128.48)] and vs HC [CGRP = 13.988 pg/ml (10.095-17.87); VIP = 84.685 pg/ml (35.32-99.79), and PACAP = 103.142 pg/ml (59.42-123.97)]. Using multinomial modeling, only VIP (OR 1.011, 95% CI 1.003-1.018, p = 0.005) and PACAP (OR 1.003, 95% CI 1.001-1.005, p = 0.002) increased the risk for CM, but not for EM. CGRP did not predict CM or EM. This model could correctly classify only 62/101 (61.38%) of CM, 75/98 (76.53%) of EM, and 5/97 (4.12%) of HC [globally 147/296 (49.8%)]. Individually, PACAP performed the best for classifying clinical categories [global accuracy 150/296 (50.67%)]. In CM, neuropeptide levels were higher in those OnaBT-treated than in no-treated patients. Although interictal serum CGRP and VIP were higher in CM than both EM or HC, their utility to discriminate migraine categories was low. Contrary to other studies, PACAP serum levels were also higher in CM than in EM or HC and had more discriminative capability to distinguish CM from EM and HC. Further investigation is needed for determination technique standardization.
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Frederiksen SD, Bekker‐Nielsen Dunbar M, Snoer AH, Deen M, Edvinsson L. Serotonin and Neuropeptides in Blood From Episodic and Chronic Migraine and Cluster Headache Patients in Case‐Control and Case‐Crossover Settings: A Systematic Review and Meta‐Analysis. Headache 2020; 60:1132-1164. [DOI: 10.1111/head.13802] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 02/27/2020] [Accepted: 03/17/2020] [Indexed: 01/22/2023]
Affiliation(s)
| | | | - Agneta H. Snoer
- Danish Headache Centre and Department of Neurology, Rigshospitalet Glostrup Faculty of Health and Medical Sciences University of Copenhagen Glostrup Denmark
| | - Marie Deen
- Danish Headache Centre and Department of Neurology, Rigshospitalet Glostrup Faculty of Health and Medical Sciences University of Copenhagen Glostrup Denmark
| | - Lars Edvinsson
- Department of Clinical Experimental Research Glostrup Research Institute Rigshospitalet Glostrup Glostrup Denmark
- Division of Experimental Vascular Research Department of Clinical Sciences Lund University Lund Sweden
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Pascual J. Circulating CGRP levels in medication-overuse headache. Acta Neurol Scand 2020; 141:355-356. [PMID: 31595486 DOI: 10.1111/ane.13176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/03/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Julio Pascual
- Service of Neurology and IDIVAL, University Hospital Marqués de Valdecilla, Santander, Spain
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Wattiez AS, Sowers LP, Russo AF. Calcitonin gene-related peptide (CGRP): role in migraine pathophysiology and therapeutic targeting. Expert Opin Ther Targets 2020; 24:91-100. [PMID: 32003253 DOI: 10.1080/14728222.2020.1724285] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Introduction: The neuropeptide calcitonin gene-related peptide (CGRP) is recognized as a critical player in migraine pathophysiology. Excitement has grown regarding CGRP because of the development and clinical testing of drugs targeting CGRP or its receptor. While these drugs alleviate migraine symptoms in half of the patients, the remaining unresponsive half of this population creates an impetus to address unanswered questions that exist in this field.Areas covered: We describe the role of CGRP in migraine pathophysiology and CGRP-targeted therapeutics currently under development and in use. We also discuss how a second CGRP receptor may provide a new therapeutic target.Expert opinion: CGRP-targeting drugs have shown a remarkable safety profile. We speculate that this may reflect the redundancy of peptides within the CGRP family and a second CGRP receptor that may compensate for reduced CGRP activity. Furthermore, we propose that an inherent safety feature of peptide-blocking antibodies is attributed to the fundamental nature of peptide release, which occurs as a large bolus in short bursts of volume transmission. These facts support the development of more refined CGRP therapeutic drugs, as well as drugs that target other neuropeptides. We believe that the future of migraine research is bright with exciting advances on the horizon.
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Affiliation(s)
- Anne-Sophie Wattiez
- Department of Physiology and Biophysics, University of Iowa, Iowa City, IA, USA.,VA Center for the Prevention and Treatment of Visual Loss, VA Medical Center, Iowa City, IA, USA
| | - Levi P Sowers
- Department of Physiology and Biophysics, University of Iowa, Iowa City, IA, USA.,VA Center for the Prevention and Treatment of Visual Loss, VA Medical Center, Iowa City, IA, USA
| | - Andrew F Russo
- Department of Physiology and Biophysics, University of Iowa, Iowa City, IA, USA.,VA Center for the Prevention and Treatment of Visual Loss, VA Medical Center, Iowa City, IA, USA.,Department of Neurology, University of Iowa, Iowa City, IA, USA
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Sprouse Blum AS, Lavoie B, Haag M, Mawe SM, Tolner EA, van den Maagdenberg AMJM, Chen SP, Eikermann-Haerter K, Ptáček L, Mawe GM, Shapiro RE. No Gastrointestinal Dysmotility in Transgenic Mouse Models of Migraine. Headache 2019; 60:396-404. [PMID: 31876298 DOI: 10.1111/head.13724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To determine whether transgenic mouse models of migraine exhibit upper gastrointestinal dysmotility comparable to those observed in migraine patients. BACKGROUND There is considerable evidence supporting the comorbidity of gastrointestinal dysmotility and migraine. Gastrointestinal motility, however, has never been investigated in transgenic mouse models of migraine. METHODS Three transgenic mouse strains that express pathogenic gene mutations linked to monogenic migraine-relevant phenotypes were studied: CADASIL (Notch3-Tg88), FASP (CSNK1D-T44A), and FHM1 (CACNA1A-S218L). Upper gastrointestinal motility was quantified by measuring gastric emptying and small intestinal transit in mutant and control animals. Gastrointestinal motility was measured at baseline and after pretreatment with 10 mg/kg nitroglycerin (NTG). RESULTS No significant differences were observed for gastric emptying or small intestinal transit at baseline for any of the 3 transgenic strains when compared to appropriate controls or after pretreatment with NTG when compared to vehicle. CONCLUSIONS We detected no evidence of upper gastrointestinal dysmotility in mice that express mutations in genes linked to monogenic migraine-relevant phenotypes. Future studies seeking to understand why humans with migraine experience delayed gastric emptying may benefit from pursuing other modifiers of gastrointestinal motility, such as epigenetic or microbiome-related factors.
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Affiliation(s)
- Adam S Sprouse Blum
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - Brigitte Lavoie
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - Melody Haag
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - Seamus M Mawe
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - Else A Tolner
- Departments of Human Genetics & Neurology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Shih-Pin Chen
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | | | - Louis Ptáček
- Department of Neurology, Weill Neuroscience Institute, and Kavli Institute for Fundamental Neuroscience, University of California San Francisco, San Francisco, CA, USA
| | - Gary M Mawe
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - Robert E Shapiro
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
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Ferroni P, Barbanti P, Spila A, Fratangeli F, Aurilia C, Fofi L, Egeo G, Guadagni F. Circulating Biomarkers in Migraine: New Opportunities for Precision Medicine. Curr Med Chem 2019; 26:6191-6206. [DOI: 10.2174/0929867325666180622122938] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 05/24/2018] [Accepted: 05/30/2018] [Indexed: 01/03/2023]
Abstract
Background:
Migraine is the most common neurological disorder and the second
most disabling human condition, whose pathogenesis is favored by a combination of genetic,
epigenetic, and environmental factors. In recent years, several efforts have been made to identify
reliable biomarker(s) useful to monitor disease activity and/or ascertain the response to a
specific treatment.
Objective:
To review the current evidence on the potential biological markers associated with
migraine.
Methods:
A structured search of peer-reviewed research literature was performed by searching
major publications databases up to December 2017.
Results:
Several circulating biomarkers have been proposed as diagnostic or therapeutic tools
in migraine, mostly related to migraine’s inflammatory pathophysiological aspects. Nonetheless,
their detection is still a challenge for the scientific community, reflecting, at least in part,
disease complexity and clinical diagnostic limitations. At the present time, calcitonin generelated
peptide (CGRP) represents probably the most promising candidate as a diagnostic
and/or therapeutic biomarker, as its plasma levels are elevated during migraine attack and decrease
during successful treatment. Other molecules (including some neuropeptides, cytokines,
adipokines, or vascular activation markers) despite promising, do not possess the sufficient
prerequisites to be considered as migraine biomarkers.
Conclusion:
The characterization of migraine-specific biomarkers would be fundamental in a
perspective of precision medicine, enabling risk assessment and tailored treatments. However,
speculating on the clinical validity of migraine biomarkers may be premature and controlled
clinical trials are presently needed to investigate both the diagnostic and therapeutic value of
these biomarkers in migraine.
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Affiliation(s)
- Patrizia Ferroni
- InterInstitutional Multisciplinary Biobank (BioBIM), IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Piero Barbanti
- Headache and Pain Unit, Dept. of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Antonella Spila
- InterInstitutional Multisciplinary Biobank (BioBIM), IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Federica Fratangeli
- InterInstitutional Multisciplinary Biobank (BioBIM), IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Cinzia Aurilia
- Headache and Pain Unit, Dept. of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Luisa Fofi
- Headache and Pain Unit, Dept. of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Gabriella Egeo
- Headache and Pain Unit, Dept. of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, 00166, Rome, Italy
| | - Fiorella Guadagni
- InterInstitutional Multisciplinary Biobank (BioBIM), IRCCS San Raffaele Pisana, 00166, Rome, Italy
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Xu F, Sun W. Network Meta-Analysis of Calcitonin Gene-Related Peptide Receptor Antagonists for the Acute Treatment of Migraine. Front Pharmacol 2019; 10:795. [PMID: 31354502 PMCID: PMC6640487 DOI: 10.3389/fphar.2019.00795] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 06/19/2019] [Indexed: 01/29/2023] Open
Abstract
Background: Research has indicated that calcitonin gene-related peptide (CGRP) receptor antagonists can be effective in the acute treatment of migraine. Six major drugs are included within this category: telcagepant, olcegepant, BI 44370, rimegepant (BMS-927711), MK3207, and ubrogepant. However, no previous studies have performed network meta-analyses to directly compare the effects of these drugs. In the present study, we assessed the therapeutic qualities of these six different drugs to inform further clinical research. Methods: We searched PubMed, Embase, Ovid MEDLINE, Web of Science, and the Cochrane Central Register for Controlled Trials for relevant randomized controlled trials (RCTs) published through to October 2018. Two reviewers performed a network meta-analysis of efficacy and toxicity on the basis of odds ratios (ORs). Results: Ten randomized controlled trials involving 8,174 patients were included in our analysis. Olcegepant (OR: 4.09; CI: 1.81, 9.25), ubrogepant (OR: 2.11; CI: 1.10, 4.05), and BI 44370 (OR: 3.36; CI: 2.24, 5.04) were more effective in ensuring pain relief 2 h after treatment than was placebo treatment. BI 44370 was associated with an increased risk of adverse events when compared with placebo treatment (OR: 1.57; CI: 1.32, 1.88). Surface under the cumulative ranking curve analysis revealed that olcegepant was most effective and ubrogepant was associated with the lowest risk of adverse events among the six treatment options. Conclusion: Olcegepant was more effective, and ubrogepant had lower toxicity than the remaining treatments. CGRP antagonists are promising for the acute treatment of migraine, especially among patients who are unable to take triptans.
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Affiliation(s)
- Fang Xu
- Department of Encephalopathy, Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Wenjun Sun
- Department of Encephalopathy, Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China
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Kamm K, Straube A, Ruscheweyh R. Calcitonin gene-related peptide levels in tear fluid are elevated in migraine patients compared to healthy controls. Cephalalgia 2019; 39:1535-1543. [PMID: 31603037 DOI: 10.1177/0333102419856640] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Calcitonin gene-related peptide (CGRP) released from trigeminal nerve fibres indicates trigeminal activation and has a key role in migraine pathophysiology. The trigeminal nerve directly innervates the eye. Therefore, in this study, we compared Calcitonin gene-related peptide in tear fluid of migraine patients and healthy controls. METHODS Calcitonin gene-related peptide concentrations in tear fluid and plasma of 48 episodic and 45 chronic migraine patients and 48 controls were assessed using ELISA. RESULTS Calcitonin gene-related peptide levels in tear fluid (0.94 ± 1.11 ng/ml) were ∼140 times higher than plasma concentrations (6.81 ± 4.12 pg/ml). Tear fluid CGRP concentrations were elevated in interictal migraine patients (1.10 ± 1.27 ng/ml, n = 49) compared to controls (0.75 ± 0.80 ng/ml, p = 0.022). There was no difference in tear fluid CGRP levels between interictal episodic and chronic migraine patients (episodic: 1.09 ± 1.47 ng/ml, n = 30 and chronic: 1.10 ± 0.89 ng/ml, n = 19) and no correlation of tear fluid CGRP levels with headache frequency in interictal patients (rho = 0.062, p = 0.674). Unmedicated ictal migraine patients had even more elevated tear fluid CGRP levels than interictal migraine patients (1.92 ± 1.84 ng/ml, n = 13, p = 0.102), while medicated ictal migraine patients had lower levels (0.56 ± 0.47 ng/ml, n = 25, p = 0.011 compared to interictal patients), which were undistinguishable from controls (p = 0.609). In contrast to tear fluid, no significant group differences were found in plasma CGRP levels. CONCLUSION To the best of our knowledge, this study shows, for the first time, increased CGRP tear fluid levels in migraine patients compared to healthy subjects. Detection of calcitonin gene-related peptide in tear fluid is non-invasive, and likely allows a more direct access to CGRP released from the trigeminal nerve than plasma sampling.
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Affiliation(s)
- Katharina Kamm
- Department of Neurology, Ludwig-Maximilians-University Hospital, Munich, Germany
| | - Andreas Straube
- Department of Neurology, Ludwig-Maximilians-University Hospital, Munich, Germany
| | - Ruth Ruscheweyh
- Department of Neurology, Ludwig-Maximilians-University Hospital, Munich, Germany
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Jung Y, Won B, Lee M, Chung J, Han SJ, Kim M. The Efficacy of Shinbaro for the Preventive Treatment of Migraine: A Pilot Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2019; 2019:2363420. [PMID: 31236122 PMCID: PMC6545806 DOI: 10.1155/2019/2363420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/26/2019] [Accepted: 05/08/2019] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate the therapeutic potential and efficacy of Shinbaro, an herbal medication for inflammatory diseases and bone disorders, as a preventive treatment of migraine. METHODS In this prospective, interventional, single-arm, pre-post study, 37 migraine patients took 600mg bid of Shinbaro for 12 weeks. At 4-week intervals, the migraine frequency and the rescue medications frequency were measured from each patient's headache diary. The modified Migraine Disability Assessment (MIDAS) questionnaires to assess migraine associated disabilities were also completed at each visit. The serum calcitonin gene-related peptide (CGRP) concentrations before and after 12 weeks of Shinbaro administration were compared. RESULTS The monthly migraine frequency was significantly reduced from 20.5 days at baseline to 16.4 days at week 12 (P =0.003), and 22% of the participants showed ≥ 50% reduction. The frequency reduction was observed by week 4 (P =0.035) and continuously occurred through week 8 (P =0.001) and week 12 (P =0.003). The rescue medications frequency also decreased significantly from 17.4 days at baseline to 13.2 days at week 12 (P =0.035). Lastly, the serum CGRP concentration dropped from 434.6 pg/mL at baseline to 371.4 pg/mL at week 12, which was statistically significant (P <0.001). CONCLUSIONS Shinbaro demonstrated prophylactic effects in migraine patients, significantly reducing their mean migraine frequency, rescue medications frequency, and the serum CGRP concentration after 12 weeks of treatment. This study is registered in Clinical Research Information Service, Seoul National University Hospital Clinical Research Institute (IRB No. 1604-138-758).
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Affiliation(s)
- Yesol Jung
- Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Republic of Korea
| | - Bohee Won
- Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Mijung Lee
- Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Republic of Korea
| | - Jinyoung Chung
- Department of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea
| | - Sung Ju Han
- Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Manho Kim
- Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Republic of Korea
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Munksgaard SB, Ertsey C, Frandsen E, Bendtsen L, Tekes K, Jensen RH. Circulating nociceptin and CGRP in medication-overuse headache. Acta Neurol Scand 2019; 139:269-275. [PMID: 30457160 DOI: 10.1111/ane.13053] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 11/09/2018] [Accepted: 11/23/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND Previous studies found low serum levels of nociceptin in migraine patients but high serum levels of calcitonin gene-related peptide (CGRP). CGRP can elicit migraine-like headache. Medication-Overuse Headache (MOH) often has migraine features and can mimic chronic migraine. We therefore hypothesized that as in migraine, serum levels of nociceptin would be lower and CGRP serum levels higher in MOH patients compared with those in healthy volunteers. We hypothesized that the serum levels would normalize after detoxification. METHODS Seventeen MOH patients, hereof 70.6% with chronic migraine and MOH, and 30 sex and age matched headache-free controls were included. MOH patients underwent a 2-month outpatient detoxification program and after 6 months, 10 patients and 19 controls were retested. Blood samples were analyzed blinded. RESULTS We found no differences in the levels of nociceptin and CGRP between MOH patients and controls (P = 0.65 and P = 0.59). The mean headache frequency reduction was 43% and 70% of patients reverted to episodic headache after 6 months, but the levels of nociceptin and CGRP were unchanged (P = 0.71 and P = 0.82). CONCLUSION In contrast to previous findings in migraine patients, we found normal serum levels of nociceptin and CGRP in MOH patients. Thus, we find no evidence that the increased headache frequency of MOH patients could be caused by altered nociceptin and CGRP levels. This underlines the importance of identifying medication overuse in chronic headache and treating the MOH.
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Affiliation(s)
- Signe B Munksgaard
- Department of Neurology, Rigshospitalet-Glostrup, Danish Headache Center, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Csaba Ertsey
- Department of Neurology, Semmelweis University, Budapest, Hungary
| | - Erik Frandsen
- Department of Diagnostics, Rigshospitalet-Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lars Bendtsen
- Department of Neurology, Rigshospitalet-Glostrup, Danish Headache Center, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kornelia Tekes
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary
| | - Rigmor H Jensen
- Department of Neurology, Rigshospitalet-Glostrup, Danish Headache Center, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Russo AF. CGRP-based Migraine Therapeutics: How Might They Work, Why So Safe, and What Next? ACS Pharmacol Transl Sci 2019; 2:2-8. [PMID: 31559394 PMCID: PMC6761833 DOI: 10.1021/acsptsci.8b00036] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Indexed: 01/20/2023]
Abstract
Migraine is a debilitating neurological condition that involves the neuropeptide calcitonin gene-related peptide (CGRP). An exciting development is the recent FDA approval of the first in an emerging class of CGRP-targeted drugs designed to prevent migraine. Yet despite this efficacy, there are some fundamental unanswered questions, such as where and how CGRP works in migraine. Preclinical data suggest that CGRP acts via both peripheral and central mechanisms. The relevance of peripheral sites is highlighted by the clinical efficacy of CGRP-blocking antibodies, even though they do not appreciably cross the blood-brain barrier. The most likely sites of action are within the dura and trigeminal ganglia. Furthermore, it would be foolish to ignore perivascular actions in the dura since CGRP is the most potent vasodilatory peptide. Ultimately, the consequence of blocking CGRP or its receptor is reduced peripheral neural sensitization. Underlying their efficacy is the question of why the antibodies have such an excellent safety profile so far. This may be due to the presence of a second CGRP receptor and vesicular release of a large bolus of peptides. Finally, despite the promise of these drugs, there are unmet gaps because they do not work for all patients; so what next? We can expect advances on several fronts, including CGRP receptor structures that may help development of centrally-acting antagonists, combinatorial treatments that integrate other therapies, and development of drugs that target other neuropeptides. This is truly an exciting time for CGRP and the migraine field with many more discoveries on the horizon.
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Affiliation(s)
- Andrew F. Russo
- Departments
of Molecular Physiology and Biophysics, Neurology, University of Iowa, Iowa City, Iowa 52242, United States
- Center
for the Prevention and Treatment of Visual Loss, Iowa VA Health Care System, Iowa City, Iowa 52246, United States
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46
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Lambru G, Andreou AP, Guglielmetti M, Martelletti P. Emerging drugs for migraine treatment: an update. Expert Opin Emerg Drugs 2018; 23:301-318. [PMID: 30484333 DOI: 10.1080/14728214.2018.1552939] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Migraine is a very frequent and disabling neurological disorder. The current treatment options are old, generally poorly tolerated and not migraine-specific, reflecting the low priority of migraine research and highlighting the vast unmet need in its management. Areas covered: Advancement in the understanding of migraine pathophysiological mechanisms and identification of novel potentially meaningful targets have resulted in a multitude of emerging acute and preventive treatments. Here we review the known putative migraine pathophysiological mechanisms in order to understand the rationale of the most promising novel treatments targeting the Calcitonin-Gene-Related Peptide receptor and ligand and the 5 hydroxytryptamine (5-HT)1F receptor. Key findings on the phase II and phase III clinical trials on these treatments will be summarized. Furthermore, a critical analysis on failed trials of potentially meaningful targets such the nitric oxide and the orexinergic pathways will be conducted. Future perspective will be outlined. Expert opinion: The recent approval of Erenumab and Fremanezumab is a major milestone in the therapy of migraine since the approval of triptans. Several more studies are needed to fully understand the clinical potential, long-term safety and cost-effectiveness of these therapies. This paramount achievement should stimulate the development of further research in the migraine field.
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Affiliation(s)
- Giorgio Lambru
- a The Headache Centre, Pain Management and Neuromodulation , Guy's and St Thomas NHS Foundation Trust , London , UK.,b The Wolfson CARD, Institute of Psychology, Psychiatry and Neuroscience , King's College London , London , UK
| | - Anna P Andreou
- a The Headache Centre, Pain Management and Neuromodulation , Guy's and St Thomas NHS Foundation Trust , London , UK.,b The Wolfson CARD, Institute of Psychology, Psychiatry and Neuroscience , King's College London , London , UK
| | - Martina Guglielmetti
- c Department of Clinical and Molecular Medicine , Sapienza" University, "Sant'Andrea" Hospital, Regional Referral Headache Centre , Rome , Italy
| | - Paolo Martelletti
- c Department of Clinical and Molecular Medicine , Sapienza" University, "Sant'Andrea" Hospital, Regional Referral Headache Centre , Rome , Italy
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47
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Taylor FR. CGRP, Amylin, Immunology, and Headache Medicine. Headache 2018; 59:131-150. [DOI: 10.1111/head.13432] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
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48
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Abstract
PURPOSE OF REVIEW This review is intended to examine how the diagnostic criteria for migraine have evolved over the past 45 years and to evaluate the strengths and weaknesses of the current diagnostic criteria promulgated by the International Classification of Headache Disorders (ICHD). RECENT FINDINGS The ICHD is a comprehensive and systematic classification system for headache disorders. As the pathophysiology of migraine is more fully elucidated and more sophisticated diagnostic technologies are developed (e.g., the identification of biomarkers), the current diagnostic criteria for migraine will likely be further refined. The ICHD has allowed for more precise research study design in the field of headache medicine. The current diagnostic criteria for migraine outlined in the 3rd version of the ICHD are far more sensitive and specific than the clinical criteria proposed in 1962. In future iterations, dividing episodic and chronic migraine into subtypes based on frequency (i.e., low frequency vs high frequency; near-daily vs daily) potentially could assist in guiding clinical management. In addition, a better understanding of aura, vestibular migraine, migrainous infarction, and hemiplegic migraine likely will lead to more refined diagnostic criteria for those entities.
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Cakmak YO, Cotofana S, Jäger C, Morawski M, Sora MC, Werner M, Hammer N. Peri-arterial Autonomic Innervation of the Human Ear. Sci Rep 2018; 8:11469. [PMID: 30065349 PMCID: PMC6068185 DOI: 10.1038/s41598-018-29839-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 07/19/2018] [Indexed: 12/25/2022] Open
Abstract
Auricular vasomotor responses are considered to be signs of clinical conditions including migraine. The mechanisms of auricular vasomotor control are still debatable. This study aimed at investigating perivascular co-transmitters of vasomotor control in the auricle. Another aim was to provide three-dimensional arterial maps of the auricle, as a proxy of periarterial autonomic innervation. Twelve paired human auricles were used to visualize the arteries following Spalteholz clearing and μ-CT-based reconstruction. Perivascular innervation staining was conducted using anti-tyrosine hydroxylase (TH), anti-neuropeptide Y (NPY), anti-vasoactive intestinal peptide (VIP) and anti-choline acetyl transferase (ChAT). The combined Spalteholz technique and μ-CT revealed a highly consistent arrangement of the auricular vasculature. The superficial temporal (STA) and posterior auricular artery (PAA) supply the helical rim arcade and arcade, with the STA mainly forming the superior and the PAA forming the middle and inferior auricular artery. Co-existence of sympathetic NPY+ and TH+ terminals mediating vasoconstriction, and VIP+ and ACh+ indicating cholinergic vasodilatation, was found in the perivascular zone. The presence of both sympathetic vasoconstriction and cholinergic co-innervation for active vasodilatation was shown in the perivascular auricular zone. Assuming that the highly-consistent vasculature gives way to these terminals, this periarterial innervation may be found spread out across the helix.
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Affiliation(s)
- Yusuf Ozgur Cakmak
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand.,Brain Health Research Centre, Dunedin, New Zealand.,Medical Technologies Centre of Research Excellence, Auckland, New Zealand
| | | | - Carsten Jäger
- University of Leipzig, Paul-Flechsig-Institute for Brain Research, Leipzig, Germany
| | - Markus Morawski
- University of Leipzig, Paul-Flechsig-Institute for Brain Research, Leipzig, Germany
| | - Mircea-Constantin Sora
- Sigmund-Freud Private University Vienna, Centre for Anatomy and Molecular Medicine, Vienna, Austria.,Medical University of Vienna, Zentrum für Anatomie und Zellbiologie, Vienna, Austria
| | - Michael Werner
- Fraunhofer Institute for Machine Tools and Forming Technology, Dresden, Germany
| | - Niels Hammer
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand. .,Fraunhofer Institute for Machine Tools and Forming Technology, Dresden, Germany. .,Department of Trauma, Orthopedic and Plastic Surgery, University Hospital of Leipzig, Leipzig, Germany.
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Lee MJ, Lee SY, Cho S, Kang ES, Chung CS. Feasibility of serum CGRP measurement as a biomarker of chronic migraine: a critical reappraisal. J Headache Pain 2018; 19:53. [PMID: 30006780 PMCID: PMC6045522 DOI: 10.1186/s10194-018-0883-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/02/2018] [Indexed: 11/11/2022] Open
Abstract
Background Calcitonin gene-related peptide (CGRP) has been reported as elevated in chronic migraine. We aimed to validate the role of interictal serum CGRP concentration in peripheral blood samples as a biomarker of chronic migraine. Methods We prospectively recruited patients with episodic and chronic migraine and normal controls (NCs) in the Samsung Medical Center between August 2015 and May 2016. Blood samples were collected interictally from antecubital veins per prespecified protocol. Serum CGRP measurement was performed in the central laboratory by a single experienced technician blinded to clinical information. Migraine subtype, headache days in the previous month, and the presence and characteristics of headache at ±2 days of measurement were evaluated at every visit. Results A total of 156 migraineurs (106 episodic and 50 chronic) and 27 NCs were recruited in this study. Compared to NCs (75.7 ± 20.07 pg/mL) and patients with episodic migraine (67.0 ± 20.70 pg/mL), patients with chronic migraine did not show an interictal elevation of serum CGRP levels (64.9 ± 15.32 pg/mL). Serum CGRP concentration was not associated with headache status (ictal vs. interictal), migraine subtype (migraine with vs. without aura), use of preventive or acute medications, and comorbid medication overuse. Higher serum CGRP concentration did not predict treatment response in patients with chronic migraine. Conclusions Serum CGRP concentration may not be a feasible biomarker for chronic migraine. Further validation is necessary before CGRP can be used in the clinical practice. Electronic supplementary material The online version of this article (10.1186/s10194-018-0883-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mi Ji Lee
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea
| | - Sook-Yeon Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Soohyun Cho
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea
| | - Eun-Suk Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Chin-Sang Chung
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea. .,Neuroscience Center, Samsung Medical Center, Seoul, South Korea.
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