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Olofsson IA. Migraine heritability and beyond: A scoping review of twin studies. Headache 2024; 64:1049-1058. [PMID: 39023388 DOI: 10.1111/head.14789] [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: 11/17/2023] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 07/20/2024]
Abstract
OBJECTIVE This scoping review aimed to summarize current knowledge from twin studies on migraine. Migraine heritability, genetic correlations with migraine comorbid disorders, and the use of discordant twin pairs in migraine research are described. Further, the review considers the unused potential of twin studies in migraine research and reflects on future directions. BACKGROUND Twin studies can be used to understand how heritable and environmental factors influence human traits and disorders. The classical twin design compares the resemblance of a trait in monozygotic twins to that in dizygotic twins. The classical twin design can be extended to estimate the genetic correlation between disorders, model causality, and describe differences within discordant twin pairs. METHODS Studies focusing on migraine and using a twin study design were included. The search was performed on the PubMed-MEDLINE database using the search terms "migraine" AND "twin" OR "twins." It was done in May 2023, rerun in November 2023, and managed with the Covidence software. RESULTS The search identified 52 twin studies on migraine. In 24 papers, the heritability of migraine was estimated with a classical twin design. Heritability estimates ranged from 0.36 to 0.48 for studies with adults, both men and women, and unspecified migraine. Migraine heritability was predominantly estimated with twin cohorts of North European ancestry, and only two studies examined migraine subtypes. A multilevel classical twin design was used in 11 studies to examine the co-occurrence between migraine and comorbid disorders. The differences within migraine discordant twin pairs were examined in nine studies. CONCLUSION The heritability of migraine was estimated with a classical twin design in twin cohorts from seven different countries, with remarkably similar results across studies. Future studies should include migraine subtypes and twin cohorts of non-North European ancestry to better reflect the global population. Beyond heritability estimations, the twin method is a valuable tool for understanding causality and describing differences within discordant twin pairs. Despite more than 80 years of twin studies in migraine research, the twin design has a large unused potential to advance our understanding of migraine.
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Affiliation(s)
- Isa Amalie Olofsson
- Danish Headache Center, Neurological Department, Copenhagen University Hospital, Glostrup, Denmark
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Zalaquett NG, Salameh E, Kim JM, Ghanbarian E, Tawk K, Abouzari M. The Dawn and Advancement of the Knowledge of the Genetics of Migraine. J Clin Med 2024; 13:2701. [PMID: 38731230 PMCID: PMC11084801 DOI: 10.3390/jcm13092701] [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: 03/20/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Background: Migraine is a prevalent episodic brain disorder known for recurrent attacks of unilateral headaches, accompanied by complaints of photophobia, phonophobia, nausea, and vomiting. Two main categories of migraine are migraine with aura (MA) and migraine without aura (MO). Main body: Early twin and population studies have shown a genetic basis for these disorders, and efforts have been invested since to discern the genes involved. Many techniques, including candidate-gene association studies, loci linkage studies, genome-wide association, and transcription studies, have been used for this goal. As a result, several genes were pinned with concurrent and conflicting data among studies. It is important to understand the evolution of techniques and their findings. Conclusions: This review provides a chronological understanding of the different techniques used from the dawn of migraine genetic investigations and the genes linked with the migraine subtypes.
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Affiliation(s)
- Nader G. Zalaquett
- Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon
| | - Elio Salameh
- Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon
| | - Jonathan M. Kim
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, CA 92697, USA
| | - Elham Ghanbarian
- Department of Neurology, University of California, Irvine, CA 92617, USA
| | - Karen Tawk
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, CA 92697, USA
| | - Mehdi Abouzari
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, CA 92697, USA
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3
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Oba T, Gulec ZEK, Çiçek MF, Uygunoglu U, Onder F. Retinal and peripapillary vascular density in episodic and chronic migraine cases without aura. Photodiagnosis Photodyn Ther 2023; 44:103809. [PMID: 37739046 DOI: 10.1016/j.pdpdt.2023.103809] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND Migraine is a neurovascular disease that can cause ocular and systemic ischemic damage. Despite from aura, a limited number of studies have considered the effect of the chronic migraine in cases without aura. Our aim was to evaluate the differences in the retinal and optic disk microvasculature among episodic and chronic migraine cases without aura using optical coherence tomography angiography (OCTA) imaging. METHODS 45 cases with migraine, and 25 control subjects were included in this prospective, cross-sectional study. OCTA was performed at 3 × 3 mm and 6 × 6 mm of the macula and at 4.5 × 4.5 mm of the optic disk. Retinal nerve fiber layer (RNFL) thickness, ganglion cell complex thickness, and vessel densities of the optic nerve and macula were compared among the three groups: a control group, an episodic migraine without aura (EMWOA) group, and a chronic migraine without aura (CMWOA) group. RESULTS In EMWOA group, circumpapillary vascular density (cpVD) was not decreased significantly in any quadrants (all, p>0.05). Compared to the control group, CMWOA group had significantly lower RNFL thickness in superior-temporal quadrants (p = 0.002 and 0.006, respectively), while cpVD differed only in the temporal quadrant and temporal inferior sector (p = 0.002 and p = 0.009, respectively). CONCLUSIONS Temporal peripapillary perfusion is valuable in the follow-up of chronic migraine cases. Longitudinal studies are needed to determine the place of OCTA in the follow-up of migraine.
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Affiliation(s)
- Turker Oba
- Department of Ophthalmology, Karaman Training and Research Hospital, Karaman, Turkey.
| | | | | | - Ugur Uygunoglu
- Department of Neurology, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Feyza Onder
- Department of Ophthalmology, University of Health Science, Haseki Training and Research Hospital, Istanbul, Turkey
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Harder AV, Terwindt GM, Nyholt DR, van den Maagdenberg AM. Migraine genetics: Status and road forward. Cephalalgia 2023; 43:3331024221145962. [PMID: 36759319 DOI: 10.1177/03331024221145962] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
BACKGROUND Migraine is considered a multifactorial genetic disorder. Different platforms and methods are used to unravel the genetic basis of migraine. Initially, linkage analysis in multigenerational families followed by Sanger sequencing of protein-coding parts (exons) of genes in the genomic region shared by affected family members identified high-effect risk DNA mutations for rare Mendelian forms of migraine, foremost hemiplegic migraine. More recently, genome-wide association studies testing millions of DNA variants in large groups of patients and controls have proven successful in identifying many dozens of low-effect risk DNA variants for the more common forms of migraine with the number of associated DNA variants increasing steadily with larger sample sizes. Currently, next-generation sequencing, utilising whole exome and whole genome sequence data, and other omics data are being used to facilitate their functional interpretation and the discovery of additional risk factors. Various methods and analysis tools, such as genetic correlation and causality analysis, are used to further characterise genetic risk factors. FINDINGS We describe recent findings in genome-wide association studies and next-generation sequencing analysis in migraine. We show that the combined results of the two most recent and most powerful migraine genome-wide association studies have identified a total of 178 LD-independent (r2 < 0.1) genome-wide significant single nucleotide polymorphisms (SNPs), of which 99 were unique to Hautakangas et al., 11 were unique to Choquet et al., and 68 were identified by both studies. When considering that Choquet et al. also identified three SNPs in a female-specific genome-wide association studies then these two recent studies identified 181 independent SNPs robustly associated with migraine. Cross-trait and causal analyses are beginning to identify and characterise specific biological factors that contribute to migraine risk and its comorbid conditions. CONCLUSION This review provides a timely update and overview of recent genetic findings in migraine.
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Affiliation(s)
- Aster Ve Harder
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands.,Department of Human Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Gisela M Terwindt
- Department of Human Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Dale R Nyholt
- School of Biomedical Sciences, Faculty of Health, and Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane, Australia
| | - Arn Mjm van den Maagdenberg
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands.,Department of Human Genetics, Leiden University Medical Centre, Leiden, The Netherlands
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de Boer I, Harder AVE, Ferrari MD, van den Maagdenberg AMJM, Terwindt GM. Genetics of migraine: Delineation of contemporary understanding of the genetic underpinning of migraine. HANDBOOK OF CLINICAL NEUROLOGY 2023; 198:85-103. [PMID: 38043973 DOI: 10.1016/b978-0-12-823356-6.00012-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Migraine is a disabling episodic brain disorder with an increased familial relative risk, an increased concordance in monozygotic twins, and an estimated heritability of approximately 50%. Various genetic approaches have been applied to identify genetic factors conferring migraine risk. Initially, candidate gene associations studies (CGAS) have been performed that test DNA variants in genes prioritized based on presumed a priori knowledge of migraine pathophysiology. More recently, genome-wide association studies (GWAS) are applied that test genetic variants, single-nucleotide polymorphisms (SNPs), in a hypothesis-free manner. To date, GWAS have identified ~40 genetic loci associated with migraine. New GWAS data, which are expected to come out soon, will reveal over 100 loci. Also, large-scale GWAS, which have appeared for many traits over the last decade, have enabled studying the overlap in genetic architecture between migraine and its comorbid disorders. Importantly, other genetic factors that cannot be identified by a GWAS approach also confer risk for migraine. First steps have been taken to determine the contribution of these mechanisms by investigating mitochondrial DNA and epigenetic mechanisms. In addition to typical epigenetic mechanisms, that is, DNA methylation and histone modifications, also RNA-based mechanisms regulating gene silencing and activation have recently gotten attention. Regardless, until now, most relevant genetic discoveries related to migraine still come from investigating monogenetic syndromes with migraine as a prominent part of the phenotype. Experimental studies on these syndromes have expanded our knowledge on the mechanisms underlying migraine pathophysiology. It can be envisaged that when all (epi)genetic and phenotypic data on the common and rare forms of migraine will be integrated, this will help to unravel the biological mechanisms for migraine, which will likely guide decision-making in clinical practice in the future.
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Affiliation(s)
- Irene de Boer
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Aster V E Harder
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands; Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Arn M J M van den Maagdenberg
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands; Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands.
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Glucose-Related Traits and Risk of Migraine—A Potential Mechanism and Treatment Consideration. Genes (Basel) 2022; 13:genes13050730. [PMID: 35627115 PMCID: PMC9141901 DOI: 10.3390/genes13050730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 12/16/2022] Open
Abstract
Migraine and glucose-related (glycaemic) traits (fasting glucose, fasting insulin, and type 2 diabetes) are common and complex comorbid disorders that cause major economic and social burdens on patients and their families. Studies on the relationship between migraine and glucose-related traits have yielded inconsistent results. The purpose of this review is to synthesise and discuss the information from the available literature on the relationship between fasting glucose, fasting insulin, and type 2 diabetes (T2D) with migraine. Publications on migraine and fasting glucose, migraine and fasting insulin, and migraine and T2D were identified from a PubMed and Google Scholar database search and reviewed for this article. Multiple publications have suggested that the comorbidity of migraine and glucose-related traits may have a similar complex pathogenic mechanism, including impaired glucose homeostasis, insulin resistance, reduced cerebrovascular reactivity, abnormal brain metabolism, shared genetic factors, neurotransmitters, and sex hormones. Furthermore, several studies have found a bi-directional link between migraine with insulin resistance and T2D. There is strong evidence for a biological association between migraine headache and glucose-related traits, and burgeoning evidence for shared genetic influences. Therefore, genetic research into these comorbid traits has the potential to identify new biomarkers and therapeutic targets and provide biological insight into their relationships. We encourage healthcare professionals to consider the co-occurrence of migraine with glucose-related traits in the evaluation and treatment of their patients.
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Fitzgerald MC, Saelzler UG, Panizzon MS. Sex Differences in Migraine: A Twin Study. FRONTIERS IN PAIN RESEARCH 2022; 2:766718. [PMID: 35295437 PMCID: PMC8915724 DOI: 10.3389/fpain.2021.766718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/19/2021] [Indexed: 11/13/2022] Open
Abstract
Migraine is a neurological disorder with a prominent sex difference such that two thirds of sufferers are female. The mechanisms behind the preponderance of migraine in women have yet to be elucidated. With data on 51,872 participants from the Swedish Twin Registry, we report results from two distinct analyses intended to clarify the degree to which genetic and environmental factors contribute to sex differences in migraine. First, we fit a sex-limitation model to determine if quantitative genetic differences (i.e., is migraine equally heritable across men and women) and/or qualitative genetic differences (i.e., are different genes involved in migraine across men and women) were present. Next, we used a multilevel logistic regression model to compare the prevalence of migraine in individuals from opposite-sex and same-sex twin pairs to determine whether differences in the prenatal hormone environment contribute to migraine risk. In the final analytic sample, women were found to have a significantly higher rate of migraine without aura relative to men (17.6% vs. 5.5%). The results from an ADE sex-limitation model indicate that migraine is equally heritable in men and women, with a broad sense heritability of 0.45, (95% CI = 0.40-0.50), while results from a reduced AE sex-limitation model provide subtle evidence for differences in the genes underlying migraine across men and women. The logistic regression analysis revealed a significant increase in migraine risk for females with a male co-twin relative to females with a female co-twin (OR = 1.51, 95% CI = 1.26-1.81). These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females. This effect points to a potential prenatal neuroendocrine factor in the development of migraine.
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Affiliation(s)
- Morgan C Fitzgerald
- Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
| | - Ursula G Saelzler
- Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
| | - Matthew S Panizzon
- Department of Psychiatry, University of California, San Diego, San Diego, CA, United States.,Center for Behavior Genetics of Aging, University of California, San Diego, San Diego, CA, United States
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8
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Rai V, Kumar P. Relation Between Methylenetetrahydrofolate Reductase Polymorphisms (C677T and A1298C) and Migraine Susceptibility. Indian J Clin Biochem 2022; 37:3-17. [PMID: 35125689 PMCID: PMC8799834 DOI: 10.1007/s12291-021-01000-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 08/17/2021] [Indexed: 01/03/2023]
Abstract
Migraine is a neurological disorder which impairs the patient's quality of life. Several association studies investigating the association between MTHFR gene C677T and A1298C polymorphisms and susceptibility to migraine were published. But the results were conflicting, so authors performed a meta-analysis of published case control studies to find out the exact association between MTHFR polymorphism and migraine susceptibility. Four databases were searched for suitable studies up to December, 2018. Odds ratios (OR) with 95% confidence intervals (CI) was calculated adopting additive, homozygote, co-dominant, dominant, and recessive genetic models. Results of MTHFR C677T polymorphism studies meta-analysis showed significant association with migraine risk using allele contrast, homozygote, dominant and recessive genetic models (T vs. C: OR = 1.18, 95% CI = 1.00-1.26, p = 0.05; TT vs. CC: OR = 1.24, 95% CI = 1.0-1.5, p = 0.04; CT vs. CC: OR = 1.08, 95% CI = 0.97-1.07, p = 0.25; TT + CT vs. CC: OR = 1.15, 95% CI = 1.0-1.29, p = 0.04; TT vs. CT + CC: OR = 1.97, 95% CI = 1.28-3.42, p = 0.002). However, results of MTHFR A1298 polymorphism studies meta-analysis did not show any association with migraine. Subgroup analysis based on ethnicity and migraine types i.e. migraine with aura (MA) and without aura (MO) were also performed. Results of present meta-analysis indicate overall association between MTHFR C677T polymorphism with migraine in total 24 studies, in Asian population and in MA cases but did not show any association with Caucasian population and MO cases.
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Affiliation(s)
- Vandana Rai
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur, UP 222 003 India
| | - Pradeep Kumar
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur, UP 222 003 India
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Lee W, Min IK, Yang KI, Kim D, Yun CH, Chu MK. Classifying migraine subtypes and their characteristics by latent class analysis using data of a nation-wide population-based study. Sci Rep 2021; 11:21595. [PMID: 34732803 PMCID: PMC8566532 DOI: 10.1038/s41598-021-01107-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/25/2021] [Indexed: 12/30/2022] Open
Abstract
Migraine neither presents with a definitive single symptom nor has a distinct biomarker; thus, its diagnosis is based on combinations of typical symptoms. We aimed to identify natural subgroups of migraine based on symptoms listed in the diagnostic criteria of the third edition of the International Classification of Headache Disorders. Latent class analysis (LCA) was applied to the data of the Korean Sleep-Headache Study, a nationwide population-based survey. We selected a three-class model based on Akaike and Bayesian information criteria and characterized the three identified classes as “mild and low frequency,” “photophobia and phonophobia,” and “severe and high frequency.” In total, 52.0% (65/125) of the participants were classified as “mild and low frequency,” showing the highest frequency of mild headache intensity but the lowest overall headache frequency. Meanwhile, “photophobia and phonophobia” involved 33.6% (42/125) of the participants, who showed the highest frequency of photophobia and phonophobia. Finally, “severe and high frequency” included 14.4% (18/125) of the participants, and they presented the highest frequency of severe headache intensity and highest headache frequency. In conclusion, LCA is useful for analyzing the heterogeneity of migraine symptoms and identifying migraine subtypes. This approach may improve our understanding of the clinical characterization of migraine.
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Affiliation(s)
- Wonwoo Lee
- Department of Neurology, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - In Kyung Min
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Ik Yang
- Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, Korea
| | - Daeyoung Kim
- Department of Neurology, Chungnam National University Hospital, Daejeon, Korea
| | - Chang-Ho Yun
- Department of Neurology, Bundang Clinical Neuroscience Institute, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Min Kyung Chu
- Department of Neurology, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea.
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Kossowsky J, Schuler MS, Giulianini F, Berde CB, Reis B, Ridker PM, Buring JE, Kurth T, Chasman DI. Association of Genetic Variants With Migraine Subclassified by Clinical Symptoms in Adult Females. Front Neurol 2021; 11:617472. [PMID: 33643179 PMCID: PMC7907521 DOI: 10.3389/fneur.2020.617472] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/24/2020] [Indexed: 12/14/2022] Open
Abstract
Migraine is heritable and formally diagnosed by structured criteria that require presence of some but not all possible migraine symptoms which include aura, several distinct manifestations of pain, nausea/vomiting, and sensitivity to light or sound. The most recent genome-wide genetic association study (GWAS) for migraine identified 38 loci. We investigated whether 46 single-nucleotide polymorphisms (SNPs), i.e., genetic variants, at these loci may have especially pronounced, i.e., selective, association with migraine presenting with individual symptoms compared to absence of migraine. Selective genetic associations of SNPs were evaluated through a likelihood framework in the Women's Genome Health Study (WGHS), a population-based cohort of middle-aged women including 3,003 experiencing migraine and 18,108 not experiencing migraine, all with genetic information. SNPs at 12 loci displayed significant selective association for migraine subclassified by specific symptoms, among which six selective associations are novel. Symptoms showing selective association include aura, nausea/vomiting, photophobia, and phonophobia. The selective associations were consistent whether the women met all formal criteria for diagnostic for migraine or lacked one of the diagnostic criteria, formally termed probable migraine. Subsequently, we performed latent class analysis of migraine diagnostic symptoms among 69,861 women experiencing migraine from the WGHS recruitment sample to assess whether there were clusters of specific symptoms that might also have a genetic basis. However, no globally robust latent migraine substructures of diagnostic symptoms were observed nor were there selective genetic associations with specific combinations of symptoms revealed among weakly supported latent classes. The findings extend previously reported selective genetic associations with migraine diagnostic symptoms while supporting models for shared genetic susceptibility across all qualifying migraine at many loci.
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Affiliation(s)
- Joe Kossowsky
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Boston, MA, United States.,Division of Clinical Psychology and Psychotherapy, University of Basel, Basel, Switzerland.,Harvard Medical School, Boston, MA, United States
| | | | - Franco Giulianini
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, United States
| | - Charles B Berde
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Boston, MA, United States.,Harvard Medical School, Boston, MA, United States
| | - Ben Reis
- Harvard Medical School, Boston, MA, United States.,Computational Health Informatics Program, Boston Children's Hospital, Boston, MA, United States
| | - Paul M Ridker
- Harvard Medical School, Boston, MA, United States.,Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, United States
| | - Julie E Buring
- Harvard Medical School, Boston, MA, United States.,Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, United States
| | - Tobias Kurth
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, United States.,Institute of Public Health, Charité-Universitätmedizin Berlin, Berlin, Germany
| | - Daniel I Chasman
- Harvard Medical School, Boston, MA, United States.,Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, United States
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11
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Carvalho GF, Lodovichi SS, Pinheiro CF, Benatto MT, Florencio LL, Bragatto MM, Dach F, Bevilaqua-Grossi D. The presence of aura is not related to changes in the cervical performance and mobility of patients with migraine. Musculoskelet Sci Pract 2021; 51:102306. [PMID: 33288453 DOI: 10.1016/j.msksp.2020.102306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Migraine may be associated with neck impairment and migraine chronicity is related to greater disability. However, whether other subclassifications of migraine, such as migraine with aura, are related to neck impairment is currently unknown. The aim of this study was to assess the musculoskeletal aspects of the neck in patients with migraine with and without aura. METHODS Consecutive patients diagnosed with migraine were recruited from a tertiary headache clinic. The patients were divided into two groups according to the presence (MA, n = 37) and absence of aura (MoA, n = 88). The self-report of neck pain and neck disability was assessed using the Neck Disability Index (NDI). The patients underwent the flexion rotation test (FRT) and craniocervical flexion test (CCFT). RESULTS There was no association between the presence of aura and neck pain (χ2: 1.32, p = 0.25). No differences in the extent of neck disability (MA: 10.73, SD: 6.22; MoA: 9.63, SD:8.13, p = 0.25) or disability severity (χ2 = 6.17, p = 0.10) were found between groups. The FRT did not differ between the groups (MA: 35.07°, SD: 7.90 and MoA: 34.60°, SD: 8.70, t = -0.22, p = 0.83) and there was no association between positive FRT and aura (χ2 = 0.004, p = 0.56). The absence of difference between groups was also verified in the CCFT test (U = 1648.0, p = 0.89). CONCLUSION There was no association between aura and neck pain disability, reduced upper cervical spine mobility or reduced neck muscle performance. No differences in the neck impairment level between patients with and without aura during the clinical assessment of the cervical spine are expected.
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Affiliation(s)
- Gabriela F Carvalho
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil.
| | - Samuel S Lodovichi
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil
| | - Carina F Pinheiro
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil
| | - Mariana T Benatto
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil
| | - Lidiane L Florencio
- Department of Physiotherapy, Occupational Therapy, Rehabilitation and Physical Medicine of the University of Rey Juan Carlos, Calle Tulipán Street, 28933, Móstoles, Madrid, Spain
| | - Marcela M Bragatto
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil
| | - Fabiola Dach
- Department of Neurosciences and Behavioral Sciences - Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil
| | - Debora Bevilaqua-Grossi
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, 14049-900, Ribeirão Preto-SP, Brazil
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12
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16Up: Outline of a Study Investigating Wellbeing and Information and Communication Technology Use in Adolescent Twins. Twin Res Hum Genet 2021; 23:345-357. [PMID: 33509317 DOI: 10.1017/thg.2020.83] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The '16Up' study conducted at the QIMR Berghofer Medical Research Institute from January 2014 to December 2018 aimed to examine the physical and mental health of young Australian twins aged 16-18 years (N = 876; 371 twin pairs and 18 triplet sets). Measurements included online questionnaires covering physical and mental health as well as information and communication technology (ICT) use, actigraphy, sleep diaries and hair samples to determine cortisol concentrations. Study participants generally rated themselves as being in good physical (79%) and mental (73%) health and reported lower rates of psychological distress and exposure to alcohol, tobacco products or other substances than previously reported for this age group in the Australian population. Daily or near-daily online activity was almost universal among study participants, with no differences noted between males and females in terms of frequency or duration of internet access. Patterns of ICT use in this sample indicated that the respondents were more likely to use online information sources for researching physical health issues than for mental health or substance use issues, and that they generally reported partial levels of satisfaction with the mental health information they found online. This suggests that internet-based mental health resources can be readily accessed by adolescent Australians, and their computer literacy augurs well for future access to online health resources. In combination with other data collected as part of the ongoing Brisbane Longitudinal Twin Study, the 16Up project provides a valuable resource for the longitudinal investigation of genetic and environmental contributions to phenotypic variation in a variety of human traits.
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The Role of the Kynurenine Signaling Pathway in Different Chronic Pain Conditions and Potential Use of Therapeutic Agents. Int J Mol Sci 2020; 21:ijms21176045. [PMID: 32842609 PMCID: PMC7503462 DOI: 10.3390/ijms21176045] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/11/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022] Open
Abstract
Tryptophan (TRP) is an essential, aromatic amino acid catabolized by indoleamine 2,3-dioxygenase (IDO) and tryptophan 2,3-dioxygenase (TDO) enzymes into kynurenine. The IDO enzyme is expressed in peripheral tissues and the central nervous system. Another enzyme of interest in the kynurenine signaling pathway is kynurenine 3-monooxygenase (KMO). The purpose of this review is to discuss the role of TRP and the kynurenine signaling pathway in different chronic pain patients. The IDO-1, IDO-2, and KMO enzymes and the kynurenine metabolite have been shown to be involved in the pathogenesis of neuropathic pain and other painful conditions (migraine, cluster headache, etc.) as well as depressive behavior. We highlighted the analgesic potential of novel agents targeting the enzymes of the kynurenine signaling pathway to explore their efficacy in both future basic science and transitional studies. Upcoming studies conducted on animal models will need to take into consideration the differences in TRP metabolism between human and non-human species. Since chronic painful conditions and depression have common pathophysiological patterns, and the kynurenine signaling pathway is involved in both of them, future clinical studies should aim to have outcomes targeting not only pain, but also functionality, mood changes, and quality of life.
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Migraine, Human Genetics and a Passion for Science. Twin Res Hum Genet 2020; 23:105-106. [PMID: 32423498 DOI: 10.1017/thg.2020.22] [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: 11/06/2022]
Abstract
This note reflects on my collaborations with Nick Martin and the GenEpi group over the past 20 years. Over the past two decades, our work together has focused on gene mapping and understanding the genetic architecture of a wide range of traits with particular foci on migraine and common baldness. Our migraine research has included latent class and twin analyses cumulating in genome-wide association analyses which had identified 44 (34 new) risk variants for migraine. Leveraging these results through polygenic risk score analyses identified subgroups of patients likely to respond to triptans (an acute migraine drug), providing the first step toward precision medicine in migraine [Kogelman et al. (2019) Neurology Genetics, 5, e364].
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Abstract
Purpose of review Migraine is a primary headache disorder and one of the most common and disabling neurological diseases worldwide. Genome-wide association studies have identified ≈40 genetic loci associated with migraine. How these and other genetic findings are used to expand our knowledge on the pathophysiological mechanism of common migraine and rare migraine variants will be discussed. Recent findings The genetic load, based on common polygenic variation, is higher in familial migraine cases than in nonfamilial cases, and higher for migraine with aura and hemiplegic migraine. Migraine shares common genetic variant risks with depression. Specific clinical features of common migraine seem to be determined by genetic factors. A stronger family history of migraine is associated with lower age-at-onset, higher frequency and number of medication days and the migraine with aura subtype. Mild hemiplegic migraine is likely caused by complex polygenic interaction of multiple gene variants and environmental factors, like in common migraine subtypes. Phenotypical features in hemiplegic migraine patients may guide physicians in providing adequate genetic counseling. Summary Integration of genetic, phenotypic and epigenetic data will help to identify the biological mechanisms by which genetic factors contribute to migraine pathogenesis. Recent studies show the impact of genetics on clinical features and comorbidities in migraine and may guide clinicians to an adequate genetic advice for patients.
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Lee HH, Chen CC, Ong JR, Lin YF, Lee FP, Hu CJ, Wang YH. Association of rs2651899 Polymorphism in the Positive Regulatory Domain 16 and Common Migraine Subtypes: A Meta-Analysis. Headache 2019; 60:71-80. [PMID: 31557325 DOI: 10.1111/head.13670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Migraine is a neurovascular disease with recurrent headache attacks. A polymorphism (rs2651899) of the PRDM16 gene, which is associated with migraine, was identified in recent genome-wide association studies. The potential role of the PRDM16 rs2651899 polymorphism in migraine is still unknown. Therefore, we conducted this systematic review and meta-analysis to examine this issue. METHODS We performed a comprehensive literature search of the PubMed, Embase, and Google Scholar databases to identify eligible studies published before October 2018. Individual odds ratio and 95% confidence interval was used to estimate the pooled strength of the association between the PRDM16 rs2651899 polymorphism and common migraine subtypes, including migraine with aura (MA) and migraine without aura (MO). RESULTS Six studies with 2853 cases and 9319 controls that fulfilled the inclusion and exclusion criteria were selected for this meta-analysis. Of the 6 included studies, 4 studies had available data for MWA and another 4 studies had data for MWoA. Overall, significant migraine risks of 1.257, 1.305, and 1.419 were found under allele model (C vs T), dominant model (C/C+T/C vs T/T), and recessive model (C/C vs T/C+T/T), respectively. In the recessive model, significantly increased risks of 1.454 and 1.546 were found for MA and MO, respectively. CONCLUSION Our major findings suggest that PRDM16 rs2651899 polymorphism is associated with the risk of migraine. Furthermore, we found that PRDM16 rs2651899 polymorphism is significantly related to common migraine subtypes (MA and MO).
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Affiliation(s)
- Hsun-Hua Lee
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Dizziness and Balance Disorder Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chih-Chung Chen
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Dizziness and Balance Disorder Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jiann-Ruey Ong
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yuan-Feng Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Fei-Peng Lee
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Otolaryngology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chaur-Jong Hu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Dizziness and Balance Disorder Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yuan-Hung Wang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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Sutherland HG, Albury CL, Griffiths LR. Advances in genetics of migraine. J Headache Pain 2019; 20:72. [PMID: 31226929 PMCID: PMC6734342 DOI: 10.1186/s10194-019-1017-9] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 05/24/2019] [Indexed: 02/06/2023] Open
Abstract
Background Migraine is a complex neurovascular disorder with a strong genetic component. There are rare monogenic forms of migraine, as well as more common polygenic forms; research into the genes involved in both types has provided insights into the many contributing genetic factors. This review summarises advances that have been made in the knowledge and understanding of the genes and genetic variations implicated in migraine etiology. Findings Migraine is characterised into two main types, migraine without aura (MO) and migraine with aura (MA). Hemiplegic migraine is a rare monogenic MA subtype caused by mutations in three main genes - CACNA1A, ATP1A2 and SCN1A - which encode ion channel and transport proteins. Functional studies in cellular and animal models show that, in general, mutations result in impaired glutamatergic neurotransmission and cortical hyperexcitability, which make the brain more susceptible to cortical spreading depression, a phenomenon thought to coincide with aura symptoms. Variants in other genes encoding ion channels and solute carriers, or with roles in regulating neurotransmitters at neuronal synapses, or in vascular function, can also cause monogenic migraine, hemiplegic migraine and related disorders with overlapping symptoms. Next-generation sequencing will accelerate the finding of new potentially causal variants and genes, with high-throughput bioinformatics analysis methods and functional analysis pipelines important in prioritising, confirming and understanding the mechanisms of disease-causing variants. With respect to common migraine forms, large genome-wide association studies (GWAS) have greatly expanded our knowledge of the genes involved, emphasizing the role of both neuronal and vascular pathways. Dissecting the genetic architecture of migraine leads to greater understanding of what underpins relationships between subtypes and comorbid disorders, and may have utility in diagnosis or tailoring treatments. Further work is required to identify causal polymorphisms and the mechanism of their effect, and studies of gene expression and epigenetic factors will help bridge the genetics with migraine pathophysiology. Conclusions The complexity of migraine disorders is mirrored by their genetic complexity. A comprehensive knowledge of the genetic factors underpinning migraine will lead to improved understanding of molecular mechanisms and pathogenesis, to enable better diagnosis and treatments for migraine sufferers.
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Affiliation(s)
- Heidi G Sutherland
- Genomics Research Centre, Institute of Health and Biomedical Innovation. School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD, Australia
| | - Cassie L Albury
- Genomics Research Centre, Institute of Health and Biomedical Innovation. School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD, Australia
| | - Lyn R Griffiths
- Genomics Research Centre, Institute of Health and Biomedical Innovation. School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD, Australia.
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Lipton RB, Fanning KM, Buse DC, Martin VT, Reed ML, Manack Adams A, Goadsby PJ. Identifying Natural Subgroups of Migraine Based on Comorbidity and Concomitant Condition Profiles: Results of the Chronic Migraine Epidemiology and Outcomes (CaMEO) Study. Headache 2018; 58:933-947. [DOI: 10.1111/head.13342] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Richard B. Lipton
- Montefiore Headache Center; Bronx NY USA
- Albert Einstein College of Medicine; Bronx NY USA
| | | | - Dawn C. Buse
- Albert Einstein College of Medicine; Bronx NY USA
| | - Vincent T. Martin
- University of Cincinnati Headache and Facial Pain Center, University of Cincinnati College of Medicine; Cincinnati OH USA
| | | | | | - Peter J. Goadsby
- NIHR-Wellcome Trust King's Clinical Research Facility, King's College London; London UK
- Department of Neurology; University of California, San Francisco; San Francisco CA USA
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20
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A continuum of genetic liability for minor and major depression. Transl Psychiatry 2017; 7:e1131. [PMID: 28509901 PMCID: PMC5534967 DOI: 10.1038/tp.2017.99] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 03/24/2017] [Accepted: 04/04/2017] [Indexed: 01/02/2023] Open
Abstract
The recent success of a large genome-wide association (GWA) study-analysing 130 620 major depression cases and 347 620 controls-in identifying the first single-nucleotide polymorphism (SNP) loci robustly associated with major depression in Europeans confirms that immense sample sizes are required to identify risk loci for depression. Given the phenotypic similarity between major depressive disorder (MDD) and the less severe minor depressive disorder (MiDD), we hypothesised that broadening the case definition to include MiDD may be an efficient approach to increase sample sizes in GWA studies of depression. By analysing two large twin pair cohorts, we show that minor depression and major depression lie on a single genetic continuum, with major depression being more severe but not aetiologically distinct from minor depression. Furthermore, we estimate heritabilities of 37% for minor depression, 46% for major depression and 48% for minor or major depression in a cohort of older adults (aged 50-92). However, the heritability of minor or major depression was estimated at 40% in a cohort of younger adults (aged 23-38). Moreover, two robust major depression-risk SNPs nominally associated with major depression in our Australian GWA data set produced more significant evidence for association with minor or major depression. Hence, broadening the case phenotype in GWA studies to include subthreshold definitions, such as MiDD, should facilitate the identification of additional genetic risk loci for depression.
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Chen CCM, Keith JM, Mengersen KL. Accurate phenotyping: Reconciling approaches through Bayesian model averaging. PLoS One 2017; 12:e0176136. [PMID: 28423058 PMCID: PMC5396931 DOI: 10.1371/journal.pone.0176136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 04/05/2017] [Indexed: 11/18/2022] Open
Abstract
Genetic research into complex diseases is frequently hindered by a lack of clear biomarkers for phenotype ascertainment. Phenotypes for such diseases are often identified on the basis of clinically defined criteria; however such criteria may not be suitable for understanding the genetic composition of the diseases. Various statistical approaches have been proposed for phenotype definition; however our previous studies have shown that differences in phenotypes estimated using different approaches have substantial impact on subsequent analyses. Instead of obtaining results based upon a single model, we propose a new method, using Bayesian model averaging to overcome problems associated with phenotype definition. Although Bayesian model averaging has been used in other fields of research, this is the first study that uses Bayesian model averaging to reconcile phenotypes obtained using multiple models. We illustrate the new method by applying it to simulated genetic and phenotypic data for Kofendred personality disorder-an imaginary disease with several sub-types. Two separate statistical methods were used to identify clusters of individuals with distinct phenotypes: latent class analysis and grade of membership. Bayesian model averaging was then used to combine the two clusterings for the purpose of subsequent linkage analyses. We found that causative genetic loci for the disease produced higher LOD scores using model averaging than under either individual model separately. We attribute this improvement to consolidation of the cores of phenotype clusters identified using each individual method.
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Affiliation(s)
- Carla Chia-Ming Chen
- Australian Institute of Marine Science, Cape Cleveland QLD, Australia
- ARC Centre of Excellence for Mathematical & Statistical Frontiers, Queensland University of Technology, Brisbane QLD, Australia
| | | | - Kerrie Lee Mengersen
- ARC Centre of Excellence for Mathematical & Statistical Frontiers, Queensland University of Technology, Brisbane QLD, Australia
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Sutherland HG, Griffiths LR. Genetics of Migraine: Insights into the Molecular Basis of Migraine Disorders. Headache 2017; 57:537-569. [PMID: 28271496 DOI: 10.1111/head.13053] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 01/09/2017] [Indexed: 12/20/2022]
Abstract
Migraine is a complex, debilitating neurovascular disorder, typically characterized by recurring, incapacitating attacks of severe headache often accompanied by nausea and neurological disturbances. It has a strong genetic basis demonstrated by rare migraine disorders caused by mutations in single genes (monogenic), as well as familial clustering of common migraine which is associated with polymorphisms in many genes (polygenic). Hemiplegic migraine is a dominantly inherited, severe form of migraine with associated motor weakness. Family studies have found that mutations in three different ion channels genes, CACNA1A, ATP1A2, and SCN1A can be causal. Functional studies of these mutations has shown that they can result in defective regulation of glutamatergic neurotransmission and the excitatory/inhibitory balance in the brain, which lowers the threshold for cortical spreading depression, a wave of cortical depolarization thought to be involved in headache initiation mechanisms. Other putative genes for monogenic migraine include KCKN18, PRRT2, and CSNK1D, which can also be involved with other disorders. There are a number of primarily vascular disorders caused by mutations in single genes, which are often accompanied by migraine symptoms. Mutations in NOTCH3 causes cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), a hereditary cerebrovascular disease that leads to ischemic strokes and dementia, but in which migraine is often present, sometimes long before the onset of other symptoms. Mutations in the TREX1 and COL4A1 also cause vascular disorders, but often feature migraine. With respect to common polygenic migraine, genome-wide association studies have now identified single nucleotide polymorphisms at 38 loci significantly associated with migraine risk. Functions assigned to the genes in proximity to these loci suggest that both neuronal and vascular pathways also contribute to the pathophysiology of common migraine. Further studies are required to fully understand these findings and translate them into treatment options for migraine patients.
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Affiliation(s)
- Heidi G Sutherland
- Genomics Research Centre, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, QUT, Musk Ave, Kelvin Grove, QLD, 4059, Australia
| | - Lyn R Griffiths
- Genomics Research Centre, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, QUT, Musk Ave, Kelvin Grove, QLD, 4059, Australia
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Abstract
Depression and fatigue have previously been suggested to share an underlying genetic contribution. The present study aims to investigate and characterize the familiality and genetic relationship between depression and fatigue. The familiality of depression and fatigue was assessed by calculating relative risks, measured by the prevalence ratio, within 643 monozygotic (MZ) and 577 dizygotic (DZ) twin pairs. Bivariate twin modeling was utilized to assess the magnitude of shared heritability between depression and fatigue. Finally, the relationship between depression and fatigue was investigated using the co-twin control method, to determine whether the association is explained by causal or non-causal models. We observed an increased risk of fatigue in co-twins of probands with depression and increased risk of depression in co-twins of probands with fatigue. Higher risks were observed in MZ compared to DZ twin pairs, and bivariate heritability analyses indicated significant genetic components for depression and fatigue, with heritability estimates of 48% and 41%, respectively. Importantly, a significant additive genetic correlation of 0.71 [95% CI = 0.51-0.92) and bivariate heritability of 21% [95% CI = 10-35%] was observed between depression and fatigue. Furthermore, results from the co-twin control method indicate a non-causal genetic relationship that likely explains the association between depression and fatigue. Notably, the contribution of shared genetic factors remained significant, independent of the overlapping symptoms, indicating that the relationship between co-occurring depression and fatigue is primarily due to shared genetic factors rather than overlapping symptomatology.
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Approaches to Demonstrating the Reliability and Validity of Core Diagnostic Criteria for Chronic Pain. THE JOURNAL OF PAIN 2016; 17:T118-31. [DOI: 10.1016/j.jpain.2015.10.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/24/2015] [Accepted: 10/12/2015] [Indexed: 01/03/2023]
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Kowalska M, Prendecki M, Kozubski W, Lianeri M, Dorszewska J. Molecular factors in migraine. Oncotarget 2016; 7:50708-50718. [PMID: 27191890 PMCID: PMC5226615 DOI: 10.18632/oncotarget.9367] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 05/05/2016] [Indexed: 01/09/2023] Open
Abstract
Migraine is a common neurological disorder that affects 11% of adults worldwide. This disease most likely has a neurovascular origin. Migraine with aura (MA) and more common form - migraine without aura (MO) - are the two main clinical subtypes of disease. The exact pathomechanism of migraine is still unknown, but it is thought that both genetic and environmental factors are involved in this pathological process. The first genetic studies of migraine were focused on the rare subtype of MA: familial hemiplegic migraine (FHM). The genes analysed in familial and sporadic migraine are: MTHFR, KCNK18, HCRTR1, SLC6A4, STX1A, GRIA1 and GRIA3. It is possible that migraine is a multifactorial disease with polygenic influence.Recent studies have shown that the pathomechanisms of migraine involves both factors responsible for immune response and oxidative stress such as: cytokines, tyrosine metabolism, homocysteine; and factors associated with pain transmission and emotions e.g.: serotonin, hypocretin-1, calcitonin gene-related peptide, glutamate. The correlations between genetic variants of the HCRTR1 gene, the polymorphism 5-HTTLPR and hypocretin-1, and serotonin were observed. It is known that serotonin inhibits the activity of hypocretin neurons and may affect the appearance of the aura during migraine attack.The understanding of the molecular mechanisms of migraine, including genotype-phenotype correlations, may contribute to finding markers important for the diagnosis and treatment of this disease.
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Affiliation(s)
- Marta Kowalska
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
| | - Michał Prendecki
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
| | - Wojciech Kozubski
- Chair and Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
| | - Margarita Lianeri
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
| | - Jolanta Dorszewska
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
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Abstract
Migraine frequently co-occurs with depression. Using a large sample of Australian twin pairs, we aimed to characterize the extent to which shared genetic factors underlie these two disorders. Migraine was classified using three diagnostic measures, including self-reported migraine, the ID migraine™ screening tool, or migraine without aura (MO) and migraine with aura (MA) based on International Headache Society (IHS) diagnostic criteria. Major depressive disorder (MDD) and minor depressive disorder (MiDD) were classified using the Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria. Univariate and bivariate twin models, with and without sex-limitation, were constructed to estimate the univariate and bivariate variance components and genetic correlation for migraine and depression. The univariate heritability of broad migraine (self-reported, ID migraine, or IHS MO/MA) and broad depression (MiDD or MDD) was estimated at 56% (95% confidence interval [CI]: 53-60%) and 42% (95% CI: 37-46%), respectively. A significant additive genetic correlation (r G = 0.36, 95% CI: 0.29-0.43) and bivariate heritability (h 2 = 5.5%, 95% CI: 3.6-7.8%) was observed between broad migraine and depression using the bivariate Cholesky model. Notably, both the bivariate h 2 (13.3%, 95% CI: 7.0-24.5%) and r G (0.51, 95% CI: 0.37-0.69) estimates significantly increased when analyzing the more narrow clinically accepted diagnoses of IHS MO/MA and MDD. Our results indicate that for both broad and narrow definitions, the observed comorbidity between migraine and depression can be explained almost entirely by shared underlying genetically determined disease mechanisms.
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Turner DP, Smitherman TA, Black AK, Penzien DB, Porter JAH, Lofland KR, Houle TT. Are migraine and tension-type headache diagnostic types or points on a severity continuum? An exploration of the latent taxometric structure of headache. Pain 2016; 156:1200-1207. [PMID: 25775357 DOI: 10.1097/j.pain.0000000000000157] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The objective of this study was to assess whether migraine and tension-type headache (TTH) are best viewed as discrete entities or points on a severity continuum using taxometric analysis. Historically, classification systems have conceptualized the primary headache disorders of migraine and TTH as fundamentally different disorders that are differentiated by their characteristic symptom profiles and, as such, imply differing pathophysiologies and required treatments. Despite this categorical nosology, findings continue to emerge suggesting that migraine and TTH instead reflect dimensions of severity within the same headache construct. However, few studies have assessed this issue using taxometric statistical analyses or investigated how this taxonomic structure varies as a function of age and headache frequency. We conducted a latent-mode factor analysis of headache symptomatology obtained from 3449 individuals with headache from 2 previous, large-scale cross-sectional studies of primary headache sufferers (Martin et al., 2005, and Smitherman and Kolivas, 2013). Stratified taxometric analyses suggest that the validity of a categorical vs dimensional classification varies as a function of sample characteristics. Specifically, graphical results revealed that high headache frequency (>15 d/mo) and younger age (<24 years old) were associated with unimodal distributions suggestive of a dimensional construct of primary headache, whereas lower headache frequency and older age were associated with bimodal distributions characteristic of discrete diagnostic entities. Conceptualizing primary headache as a severity continuum was supported for young adults and those with frequent headaches. The distinctions of a categorical classification system were supported for adults (>24 years old) and those with infrequent headache.
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Affiliation(s)
- Dana P Turner
- Department of Anesthesiology, Wake Forest School of Medicine, Winston-Salem, NC, USA Department of Psychology, University of Mississippi, Oxford, MS, USA Advance Neurology and Pain, Advance, NC, USA Northshore Integrative Healthcare, Chicago, IL, USA Department of Neurology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Chasman DI, Schürks M, Kurth T. Population-based approaches to genetics of migraine. Cephalalgia 2016; 36:692-703. [PMID: 27013237 DOI: 10.1177/0333102416638519] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 02/06/2016] [Indexed: 01/03/2023]
Abstract
BACKGROUND While the most accurate diagnosis of migraine typically requires a clinical interview guided by strict diagnostic criteria, an alternative approach that ascertains migraine by questionnaire in population-based settings has been instrumental in the discovery of common genetic variants influencing migraine risk. This result may be surprising. Population-based approaches are often criticized for limited ability to distinguish migraine from other forms of primary headache. It is thus useful to revisit prevailing ideas about population-based ascertainment of migraine to evaluate the extent to which this approach has potential for additional insights into migraine genetics and therefore pathophysiology. OVERVIEW We review recent findings suggesting that the success of the population-based approach is derived from the possibility of collecting much larger samples than in the clinic-based setting even at the risk of introducing phenotypic and genetic heterogeneity. The findings are also consistent with new appreciations for the genetic basis of many other common, complex clinical characteristics. However, clinic-based ascertainment and other settings will remain more effective than population-based approaches for investigating certain, often very specific aspects of migraine genetics. CONCLUSION We argue that the detailed genetic architecture of migraine, various aspects of methodology, and the ultimate sample size achieved by population-based ascertainment will be critical determinants of the future success of this approach to genetic analysis of migraine and its comorbidities.
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Affiliation(s)
- Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, USA Harvard Medical School, USA
| | - Markus Schürks
- Department of Neurology, University Hospital Essen, Germany
| | - Tobias Kurth
- Division of Preventive Medicine, Brigham and Women's Hospital, USA Institut of Public Health, Charité-Universitätsmedizin Berlin, Germany
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Emicrania. Neurologia 2016. [DOI: 10.1016/s1634-7072(15)76142-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Zhao H, Eising E, de Vries B, Vijfhuizen LS, Anttila V, Winsvold BS, Kurth T, Stefansson H, Kallela M, Malik R, Stam AH, Ikram MA, Ligthart L, Freilinger T, Alexander M, Müller-Myhsok B, Schreiber S, Meitinger T, Aromas A, Eriksson JG, Boomsma DI, van Duijn CM, Zwart JA, Quaye L, Kubisch C, Dichgans M, Wessman M, Stefansson K, Chasman DI, Palotie A, Martin NG, Montgomery GW, Ferrari MD, Terwindt GM, van den Maagdenberg AMJM, Nyholt DR. Gene-based pleiotropy across migraine with aura and migraine without aura patient groups. Cephalalgia 2015; 36:648-57. [PMID: 26660531 DOI: 10.1177/0333102415591497] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 05/24/2015] [Indexed: 01/03/2023]
Abstract
INTRODUCTION It is unclear whether patients diagnosed according to International Classification of Headache Disorders criteria for migraine with aura (MA) and migraine without aura (MO) experience distinct disorders or whether their migraine subtypes are genetically related. AIM Using a novel gene-based (statistical) approach, we aimed to identify individual genes and pathways associated both with MA and MO. METHODS Gene-based tests were performed using genome-wide association summary statistic results from the most recent International Headache Genetics Consortium study comparing 4505 MA cases with 34,813 controls and 4038 MO cases with 40,294 controls. After accounting for non-independence of gene-based test results, we examined the significance of the proportion of shared genes associated with MA and MO. RESULTS We found a significant overlap in genes associated with MA and MO. Of the total 1514 genes with a nominally significant gene-based p value (pgene-based ≤ 0.05) in the MA subgroup, 107 also produced pgene-based ≤ 0.05 in the MO subgroup. The proportion of overlapping genes is almost double the empirically derived null expectation, producing significant evidence of gene-based overlap (pleiotropy) (pbinomial-test = 1.5 × 10(-4)). Combining results across MA and MO, six genes produced genome-wide significant gene-based p values. Four of these genes (TRPM8, UFL1, FHL5 and LRP1) were located in close proximity to previously reported genome-wide significant SNPs for migraine, while two genes, TARBP2 and NPFF separated by just 259 bp on chromosome 12q13.13, represent a novel risk locus. The genes overlapping in both migraine types were enriched for functions related to inflammation, the cardiovascular system and connective tissue. CONCLUSIONS Our results provide novel insight into the likely genes and biological mechanisms that underlie both MA and MO, and when combined with previous data, highlight the neuropeptide FF-amide peptide encoding gene (NPFF) as a novel candidate risk gene for both types of migraine.
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Affiliation(s)
- Huiying Zhao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Australia QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Else Eising
- Department of Human Genetics, Leiden University Medical Centre, The Netherlands
| | - Boukje de Vries
- Department of Human Genetics, Leiden University Medical Centre, The Netherlands
| | | | | | - Verneri Anttila
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, USA Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, USA Harvard Medical School, USA Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, USA
| | - Bendik S Winsvold
- FORMI and Department of Neurology, Oslo University Hospital and University of Oslo, Norway
| | - Tobias Kurth
- Institut National de la Santé et de la Recherche Médicale (INSERM) Research Center for Epidemiology and Biostatistics (U897) - Team Neuroepidemiology, France University of Bordeaux, France Department of Medicine, Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, USA
| | | | - Mikko Kallela
- Department of Neurology, Helsinki University Central Hospital, Finland
| | - Rainer Malik
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Germany
| | - Anine H Stam
- Department of Neurology, Leiden University Medical Centre, The Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus University Medical Centre, The Netherlands Department of Radiology, Erasmus University Medical Centre, The Netherlands Department of Neurology, Erasmus University Medical Centre, The Netherlands
| | - Lannie Ligthart
- Department of Biological Psychology, VU University, The Netherlands EMGO+ Institute for Health and Care Research, VU University Medical Centre, The Netherlands
| | - Tobias Freilinger
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Germany Department of Neurology and Epileptology and Hertie-Institute for Clinical Brain Research, University of Tuebingen, Germany
| | - Michael Alexander
- Department of Genomics, Life & Brain Center, University of Bonn, Germany Institute of Human Genetics, University of Bonn, Germany
| | - Bertram Müller-Myhsok
- Max Planck Institute of Psychiatry, Germany Munich Cluster for Systems Neurology (SyNergy), Germany
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Christian Albrechts University, Germany Department of Internal Medicine I, Christian Albrechts University, Germany
| | - Thomas Meitinger
- Institute of Human Genetics, Helmholtz Center Munich, Germany Institute of Human Genetics, Klinikum Rechts der Isar, Technische Universität München, Germany
| | - Arpo Aromas
- National Institute for Health and Welfare, Finland
| | - Johan G Eriksson
- National Institute for Health and Welfare, Finland Institute of Genetics, Folkhälsan Research Center, Finland Department of General Practice, Helsinki University Central Hospital, Finland Vaasa Central Hospital, Finland Department of General Practice and Primary Health Care, University of Helsinki, Finland
| | - Dorret I Boomsma
- Department of Biological Psychology, VU University, The Netherlands
| | | | - John-Anker Zwart
- FORMI and Department of Neurology, Oslo University Hospital and University of Oslo, Norway
| | - Lydia Quaye
- Department of Twin Research and Genetic Epidemiology, King's College London, UK
| | - Christian Kubisch
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Germany
| | - Martin Dichgans
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Germany Munich Cluster for Systems Neurology (SyNergy), Germany
| | - Maija Wessman
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, USA Institute of Genetics, Folkhälsan Research Center, Finland
| | - Kari Stefansson
- deCODE Genetics, Iceland School of Medicine, University of Iceland, Iceland
| | - Daniel I Chasman
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Australia
| | - Aarno Palotie
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, USA Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, USA Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, USA Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Finland Psychiatric & Neurodevelopmental Genetics Unit, Department of Psychiatry, Massachusetts General Hospital, USA Department of Neurology, Massachusetts General Hospital, USA
| | | | | | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Centre, The Netherlands
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Centre, The Netherlands
| | - Arn M J M van den Maagdenberg
- Department of Human Genetics, Leiden University Medical Centre, The Netherlands Department of Neurology, Leiden University Medical Centre, The Netherlands
| | - Dale R Nyholt
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Australia QIMR Berghofer Medical Research Institute, Brisbane, Australia
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Zai CC, Manchia M, Sønderby IE, Yilmaz Z, De Luca V, Tiwari AK, Squassina A, Zai GC, Shaikh SA, Strauss J, King N, Le Foll B, Kaplan AS, Finseth PI, Vaaler AE, Djurovic S, Andreassen O, Vincent JB, Kennedy JL. Investigation of the genetic interaction between BDNF and DRD3 genes in suicidical behaviour in psychiatric disorders. World J Biol Psychiatry 2015; 16:171-9. [PMID: 25264289 PMCID: PMC4377309 DOI: 10.3109/15622975.2014.953011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVES Suicide is a serious public health concern, and it is partly genetic. The brain-derived neurotrophic factor (BDNF) gene has been a strong candidate in genetic studies of suicide (Dwivedi et al., Arch Gen Psychiatry 2010;60:804-815; Zai et al., Prog Neuropsychopharmacol Biol Psychiatry 2012;34:1412-1418) and BDNF regulates the expression of the dopamine D3 receptor. OBJECTIVE We examined the role of the BDNF and DRD3 genes in suicide. METHODS We analysed four tag single-nucleotide polymorphisms (SNPs) in BDNF and 15 SNPs in the D3 receptor gene DRD3 for possible association with suicide attempt history in our Canadian sample of Schizophrenia (SCZ) patients of European ancestry (N = 188). RESULTS In this sample, we found a possible interaction between the BDNF Val66Met and DRD3 Ser9Gly SNPs in increasing the risk of suicide attempt(s) in our SCZ sample. Specifically, a larger proportion of SCZ patients who were carrying at least one copy of the minor allele at each of the Val66Met and Ser9Gly functional markers have attempted suicides compared to patients with other genotypes (Bonferroni P < 0.05). However, we could not replicate this finding in samples from other psychiatric populations. CONCLUSIONS Taken together, the results from the present study suggest that an interaction between BDNF and DRD3 may not play a major role in the risk for suicide attempt, though further studies, especially in SCZ, are required.
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Affiliation(s)
- Clement C. Zai
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA),Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada
| | - Mirko Manchia
- Department of Pharmacology, Dalhousie University, Halifax, CA,Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
| | - Ida Elken Sønderby
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Zeynep Yilmaz
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA),Center of Excellence for Eating Disorders, Department of Psychiatry, University of North Carolina at Chapel Hill, NC, USA
| | - Vincenzo De Luca
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA),Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada
| | - Arun K. Tiwari
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA)
| | - Alessio Squassina
- Laboratory of Pharmacogenomics, Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Gwyneth C. Zai
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA),Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada,Institute of Medical Science, University of Toronto, Toronto, Ontario, CA
| | - Sajid A. Shaikh
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA)
| | - John Strauss
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA),Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada
| | - Nicole King
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA)
| | - Bernard Le Foll
- Translational Addiction Research Laboratory, Campbell Family Mental Health Research Institute, CAMH, Toronto, Ontario, CA
| | - Allan S. Kaplan
- Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada,Institute of Medical Science, University of Toronto, Toronto, Ontario, CA,Access & Transitions Program, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Per I. Finseth
- Department of Psychiatry, St Olavs University Hospital, Trondheim, Norway,Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
| | - Arne E Vaaler
- Department of Psychiatry, St Olavs University Hospital, Trondheim, Norway,Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
| | - Srdjan Djurovic
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway,Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Ole Andreassen
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway,Division of Mental Health and Addiction, Oslo University Hospital, 0407 Oslo, Norway
| | - John B. Vincent
- Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada,Institute of Medical Science, University of Toronto, Toronto, Ontario, CA,Molecular Neuropsychiatry & Development (MiND) Lab, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - James L. Kennedy
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario M5T 1R8 Canada (CA),Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R8 Canada,Institute of Medical Science, University of Toronto, Toronto, Ontario, CA,Corresponding Author: James L. Kennedy, MD, Address: Rm129 250 College Street, Toronto, Ontario, Canada M5T1R8, Phone: 1-416-9794987, FAX: 1-416-7974666,
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Ferrari MD, Klever RR, Terwindt GM, Ayata C, van den Maagdenberg AMJM. Migraine pathophysiology: lessons from mouse models and human genetics. Lancet Neurol 2015; 14:65-80. [PMID: 25496898 DOI: 10.1016/s1474-4422(14)70220-0] [Citation(s) in RCA: 259] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Migraine is a common, disabling, and undertreated episodic brain disorder that is more common in women than in men. Unbiased genome-wide association studies have identified 13 migraine-associated variants pointing at genes that cluster in pathways for glutamatergic neurotransmission, synaptic function, pain sensing, metalloproteinases, and the vasculature. The individual pathogenetic contribution of each gene variant is difficult to assess because of small effect sizes and complex interactions. Six genes with large effect sizes were identified in patients with rare monogenic migraine syndromes, in which hemiplegic migraine and non-hemiplegic migraine with or without aura are part of a wider clinical spectrum. Transgenic mouse models with human monogenic-migraine-syndrome gene mutations showed migraine-like features, increased glutamatergic neurotransmission, cerebral hyperexcitability, and enhanced susceptibility to cortical spreading depression, which is the electrophysiological correlate of aura and a putative trigger for migraine. Enhanced susceptibility to cortical spreading depression increased sensitivity to focal cerebral ischaemia, and blocking of cortical spreading depression improved stroke outcome in these mice. Changes in female hormone levels in these mice modulated cortical spreading depression susceptibility in much the same way that hormonal fluctuations affect migraine activity in patients. These findings confirm the multifactorial basis of migraine and might allow new prophylactic options to be developed, not only for migraine but potentially also for migraine-comorbid disorders such as epilepsy, depression, and stroke.
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Affiliation(s)
- Michel D Ferrari
- Department of Neurology, Leiden University Medical Centre, Leiden, Netherlands.
| | - Roselin R Klever
- Department of Human Genetics, Leiden University Medical Centre, Leiden, Netherlands
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Centre, Leiden, Netherlands
| | - Cenk Ayata
- Department of Radiology and Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Arn M J M van den Maagdenberg
- Department of Neurology, Leiden University Medical Centre, Leiden, Netherlands; Department of Human Genetics, Leiden University Medical Centre, Leiden, Netherlands
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34
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The impact of migraine on posterior ocular structures. J Ophthalmol 2015; 2015:868967. [PMID: 25767720 PMCID: PMC4342178 DOI: 10.1155/2015/868967] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/19/2015] [Accepted: 01/30/2015] [Indexed: 01/03/2023] Open
Abstract
Purpose. To investigate the thickness of the retinal nerve fiber layer (RNFL) and choroid in patients who have migraines in comparison to healthy controls. Methods. This study included 76 eyes and patients in the migraine group, 36 with aura (MWA group) and 40 without (MWoA group), and 38 eyes as control subjects. The RNFL and macular thicknesses were analysed with standard OCT protocol while choroidal thickness was analysed with EDI protocol in all subjects. Choroidal thickness was measured at the fovea, 1500 µm nasal and 1500 µm temporal to the fovea in a horizontal section. Results. The mean RNFL thickness for nasal and nasal inferior sectors was significantly thinner (P ≤ 0.018) in the migraineurs' eyes than in those of the controls, as was the mean choroid thickness at the fovea and measured points (P < 0.0001). However, the mean macular thickness was not significantly different between the groups. Conclusions. This study suggests that migraine leads to a reduction in the peripapillary RNFL thickness and to thinning in choroidal structures. These findings can be explained by a chronic ischemic insult related to migraine pathogenic mechanisms and these findings are considered supportive of the relationship between glaucoma and migraine.
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35
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Nyholt DR, Anttila V, Winsvold BS, Kurth T, Stefansson H, Kallela M, Malik R, Vries BD, Terwindt GM, Ikram MA, Stam AH, Ligthart L, Freilinger T, Alexander M, Muller-Myhsok B, Schreiber S, Meitinger T, Aromaa A, Eriksson JG, Kaprio J, Boomsma DI, Duijn CV, Raitakari O, Järvelin MR, Zwart JA, Quaye L, Strachan DP, Kubisch C, Ferrari MD, van den Maagdenberg AMJM, Dichgans M, Wessman M, Smith GD, Stefansson K, Chasman DI, Palotie A. Concordance of genetic risk across migraine subgroups: Impact on current and future genetic association studies. Cephalalgia 2014; 35:489-99. [PMID: 25179292 DOI: 10.1177/0333102414547784] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 07/23/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND There has been intensive debate whether migraine with aura (MA) and migraine without aura (MO) should be considered distinct subtypes or part of the same disease spectrum. There is also discussion to what extent migraine cases collected in specialised headache clinics differ from cases from population cohorts, and how female cases differ from male cases with respect to their migraine. To assess the genetic overlap between these migraine subgroups, we examined genome-wide association (GWA) results from analysis of 23,285 migraine cases and 95,425 population-matched controls. METHODS Detailed heterogeneity analysis of single-nucleotide polymorphism (SNP) effects (odds ratios) between migraine subgroups was performed for the 12 independent SNP loci significantly associated (p < 5 × 10(-8); thus surpassing the threshold for genome-wide significance) with migraine susceptibility. Overall genetic overlap was assessed using SNP effect concordance analysis (SECA) at over 23,000 independent SNPs. RESULTS Significant heterogeneity of SNP effects (p het < 1.4 × 10(-3)) was observed between the MA and MO subgroups (for SNP rs9349379), and between the clinic- and population-based subgroups (for SNPs rs10915437, rs6790925 and rs6478241). However, for all 12 SNPs the risk-increasing allele was the same, and SECA found the majority of genome-wide SNP effects to be in the same direction across the subgroups. CONCLUSIONS Any differences in common genetic risk across these subgroups are outweighed by the similarities. Meta-analysis of additional migraine GWA datasets, regardless of their major subgroup composition, will identify new susceptibility loci for migraine.
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Affiliation(s)
| | | | - Verneri Anttila
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, USA Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, USA Harvard Medical School, USA Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, USA
| | - Bendik S Winsvold
- FORMI and Department of Neurology, Oslo University Hospital and University of Oslo, Norway
| | - Tobias Kurth
- Institut National de la Santé et de la Recherche Médicale (INSERM) Research Center for Epidemiology and Biostatistics (U897) - Team Neuroepidemiology, France University of Bordeaux, France Department of Medicine, Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, USA
| | | | - Mikko Kallela
- Department of Neurology, Helsinki University Central Hospital, Finland
| | - Rainer Malik
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Germany
| | - Boukje de Vries
- Department of Human Genetics, Leiden University Medical Centre, the Netherlands
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Centre, the Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus University Medical Centre, the Netherlands Department of Radiology, Erasmus University Medical Centre, the Netherlands Department of Neurology, Erasmus University Medical Centre, the Netherlands
| | - Anine H Stam
- Department of Neurology, Leiden University Medical Centre, the Netherlands
| | - Lannie Ligthart
- Department of Biological Psychology, VU University, the Netherlands EMGO+ Institute for Health and Care Research, VU University Medical Centre, the Netherlands
| | - Tobias Freilinger
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Germany Department of Neurology, Klinikum der Universität München, Germany
| | - Michael Alexander
- Department of Genomics, Life & Brain Center, University of Bonn, Germany Institute of Human Genetics, University of Bonn, Germany
| | - Bertram Muller-Myhsok
- Max Planck Institute of Psychiatry, Germany Munich Cluster for Systems Neurology (SyNergy), Germany
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Christian Albrechts University, Germany Department of Internal Medicine I, Christian Albrechts University, Germany
| | - Thomas Meitinger
- Institute of Human Genetics, Helmholtz Center Munich, Germany Institute of Human Genetics, Klinikum Rechts der Isar, Technische Universität München, Germany
| | - Arpo Aromaa
- National Institute for Health and Welfare, Finland
| | - Johan G Eriksson
- National Institute for Health and Welfare, Finland Institute of Genetics, Folkhälsan Research Center, Finland Department of General Practice, Helsinki University Central Hospital, Helsinki, Finland Vaasa Central Hospital, Finland Department of General Practice and Primary Health Care, University of Helsinki, Finland
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Finland Department of Public Health, Hjelt Institute, University of Helsinki, Finland Department of Mental Health and Alcohol Research, National Institute for Health and Welfare, Finland
| | - Dorret I Boomsma
- Department of Biological Psychology, VU University, the Netherlands
| | - Cornelia van Duijn
- Department of Epidemiology, Erasmus University Medical Centre, the Netherlands
| | - Olli Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku University Hospital, Finland Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Finland
| | - Marjo-Riitta Järvelin
- Institute of Health Sciences, University of Oulu, Finland Unit of Primary Care, Oulu University Hospital, Finland Department of Children, Young People and Families, National Institute for Health and Welfare, Finland Department of Epidemiology and Biostatistics, School of Public Health, MRC-Health Protection Agency (HPA) Centre for Environment and Health, Faculty of Medicine, Imperial College, UK Biocenter Oulu, University of Oulu, Finland
| | - John-Anker Zwart
- FORMI and Department of Neurology, Oslo University Hospital and University of Oslo, Norway
| | - Lydia Quaye
- Department of Twin Research and Genetic Epidemiology, King's College London, UK
| | - David P Strachan
- Division of Population Health Sciences and Education, St George's, University of London, UK
| | - Christian Kubisch
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Germany Institute of Human Genetics, University of Ulm, Germany
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Centre, the Netherlands
| | - Arn M J M van den Maagdenberg
- Department of Human Genetics, Leiden University Medical Centre, the Netherlands Department of Neurology, Leiden University Medical Centre, the Netherlands
| | - Martin Dichgans
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Germany Munich Cluster for Systems Neurology (SyNergy), Germany
| | - Maija Wessman
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, USA Institute of Genetics, Folkhälsan Research Center, Finland
| | - George Davey Smith
- Medical Research Council Integrative Epidemiology Unit (IEU) at the University of Bristol, School of Social and Community Medicine, UK
| | - Kari Stefansson
- deCODE Genetics, Iceland School of Medicine, University of Iceland, Iceland
| | - Daniel I Chasman
- Department of Medicine, Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, USA
| | - Aarno Palotie
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, USA Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, USA Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, USA Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Finland Psychiatric & Neurodevelopmental Genetics Unit, Department of Psychiatry, Massachusetts General Hospital, USA Department of Neurology, Massachusetts General Hospital, USA
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36
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Lipton RB, Serrano D, Pavlovic JM, Manack AN, Reed ML, Turkel CC, Buse DC. Improving the Classification of Migraine Subtypes: An Empirical Approach Based on Factor Mixture Models in the American Migraine Prevalence and Prevention (AMPP) Study. Headache 2014; 54:830-49. [DOI: 10.1111/head.12332] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2014] [Indexed: 12/29/2022]
Affiliation(s)
- Richard B. Lipton
- Albert Einstein College of Medicine; Bronx NY USA
- Montefiore Medical Center; Bronx NY USA
| | - Daniel Serrano
- Albert Einstein College of Medicine; Bronx NY USA
- Vedanta Research; Chapel Hill NC USA
| | - Jelena M. Pavlovic
- Albert Einstein College of Medicine; Bronx NY USA
- Montefiore Medical Center; Bronx NY USA
| | | | | | | | - Dawn C. Buse
- Albert Einstein College of Medicine; Bronx NY USA
- Montefiore Medical Center; Bronx NY USA
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37
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Labruijere S, Stolk L, Verbiest M, de Vries R, Garrelds IM, Eilers PHC, Danser AHJ, Uitterlinden AG, MaassenVanDenBrink A. Methylation of migraine-related genes in different tissues of the rat. PLoS One 2014; 9:e87616. [PMID: 24609082 PMCID: PMC3946422 DOI: 10.1371/journal.pone.0087616] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 12/20/2013] [Indexed: 11/26/2022] Open
Abstract
17ß-Estradiol, an epigenetic modulator, is involved in the increased prevalence of migraine in women. Together with the prophylactic efficacy of valproate, which influences DNA methylation and histone modification, this points to the involvement of epigenetic mechanisms. Epigenetic studies are often performed on leukocytes, but it is unclear to what extent methylation is similar in other tissues. Therefore, we investigated methylation of migraine-related genes that might be epigenetically regulated (CGRP-ergic pathway, estrogen receptors, endothelial NOS, as well as MTHFR) in different migraine-related tissues and compared this to methylation in rat as well as human leukocytes. Further, we studied whether 17ß-estradiol has a prominent role in methylation of these genes. Female rats (n = 35) were ovariectomized or sham-operated and treated with 17β-estradiol or placebo. DNA was isolated and methylation was assessed through bisulphite treatment and mass spectrometry. Human methylation data were obtained using the Illumina 450k genome-wide methylation array in 395 female subjects from a population-based cohort study. We showed that methylation of the Crcp, Calcrl, Esr1 and Nos3 genes is tissue-specific and that methylation in leukocytes was not correlated to that in other tissues. Interestingly, the interindividual variation in methylation differed considerably between genes and tissues. Furthermore we showed that methylation in human leukocytes was similar to that in rat leukocytes in our genes of interest, suggesting that rat may be a good model to study human DNA methylation in tissues that are difficult to obtain. In none of the genes a significant effect of estradiol treatment was observed.
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Affiliation(s)
- Sieneke Labruijere
- Dept. of Internal Medicine, Div. of Pharmacology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Lisette Stolk
- Dept. of Internal Medicine, Genetics Laboratory, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Michael Verbiest
- Dept. of Internal Medicine, Genetics Laboratory, Erasmus Medical Center, Rotterdam, The Netherlands
| | - René de Vries
- Dept. of Internal Medicine, Div. of Pharmacology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Ingrid M. Garrelds
- Dept. of Internal Medicine, Div. of Pharmacology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Paul H. C. Eilers
- Dept. of Biostatistics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - A. H. Jan Danser
- Dept. of Internal Medicine, Div. of Pharmacology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - André G. Uitterlinden
- Dept. of Internal Medicine, Genetics Laboratory, Erasmus Medical Center, Rotterdam, The Netherlands
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Ligthart L, Hottenga JJ, Lewis CM, Farmer AE, Craig IW, Breen G, Willemsen G, Vink JM, Middeldorp CM, Byrne EM, Heath AC, Madden PAF, Pergadia ML, Montgomery GW, Martin NG, Penninx BWJH, McGuffin P, Boomsma DI, Nyholt DR. Genetic risk score analysis indicates migraine with and without comorbid depression are genetically different disorders. Hum Genet 2014; 133:173-86. [PMID: 24081561 PMCID: PMC3947136 DOI: 10.1007/s00439-013-1370-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 09/22/2013] [Indexed: 01/20/2023]
Abstract
Migraine and major depressive disorder (MDD) are comorbid, moderately heritable and to some extent influenced by the same genes. In a previous paper, we suggested the possibility of causality (one trait causing the other) underlying this comorbidity. We present a new application of polygenic (genetic risk) score analysis to investigate the mechanisms underlying the genetic overlap of migraine and MDD. Genetic risk scores were constructed based on data from two discovery samples in which genome-wide association analyses (GWA) were performed for migraine and MDD, respectively. The Australian Twin Migraine GWA study (N = 6,350) included 2,825 migraine cases and 3,525 controls, 805 of whom met the diagnostic criteria for MDD. The RADIANT GWA study (N = 3,230) included 1,636 MDD cases and 1,594 controls. Genetic risk scores for migraine and for MDD were used to predict pure and comorbid forms of migraine and MDD in an independent Dutch target sample (NTR-NESDA, N = 2,966), which included 1,476 MDD cases and 1,058 migraine cases (723 of these individuals had both disorders concurrently). The observed patterns of prediction suggest that the 'pure' forms of migraine and MDD are genetically distinct disorders. The subgroup of individuals with comorbid MDD and migraine were genetically most similar to MDD patients. These results indicate that in at least a subset of migraine patients with MDD, migraine may be a symptom or consequence of MDD.
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Affiliation(s)
- Lannie Ligthart
- Department of Biological Psychology, VU University, van der Boechorststraat 1, 1081 BT, Amsterdam, The Netherlands,
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Cargnin S, Viana M, Mittino D, Bellomo G, Tassorelli C, Nappi G, Canonico PL, Terrazzino S. Lack of association between GRIA1 polymorphisms and haplotypes with migraine without aura or response to triptans. Neurol Sci 2013; 35:421-7. [DOI: 10.1007/s10072-013-1535-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 08/29/2013] [Indexed: 01/09/2023]
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Oberski DL, van Kollenburg GH, Vermunt JK. A Monte Carlo evaluation of three methods to detect local dependence in binary data latent class models. ADV DATA ANAL CLASSI 2013. [DOI: 10.1007/s11634-013-0146-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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41
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Gasparini CF, Sutherland HG, Griffiths LR. Studies on the pathophysiology and genetic basis of migraine. Curr Genomics 2013; 14:300-15. [PMID: 24403849 PMCID: PMC3763681 DOI: 10.2174/13892029113149990007] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 07/09/2013] [Accepted: 07/09/2013] [Indexed: 01/01/2023] Open
Abstract
Migraine is a neurological disorder that affects the central nervous system causing painful attacks of headache. A genetic vulnerability and exposure to environmental triggers can influence the migraine phenotype. Migraine interferes in many facets of people's daily life including employment commitments and their ability to look after their families resulting in a reduced quality of life. Identification of the biological processes that underlie this relatively common affliction has been difficult because migraine does not have any clearly identifiable pathology or structural lesion detectable by current medical technology. Theories to explain the symptoms of migraine have focused on the physiological mechanisms involved in the various phases of headache and include the vascular and neurogenic theories. In relation to migraine pathophysiology the trigeminovascular system and cortical spreading depression have also been implicated with supporting evidence from imaging studies and animal models. The objective of current research is to better understand the pathways and mechanisms involved in causing pain and headache to be able to target interventions. The genetic component of migraine has been teased apart using linkage studies and both candidate gene and genome-wide association studies, in family and case-control cohorts. Genomic regions that increase individual risk to migraine have been identified in neurological, vascular and hormonal pathways. This review discusses knowledge of the pathophysiology and genetic basis of migraine with the latest scientific evidence from genetic studies.
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Affiliation(s)
| | | | - Lyn R Griffiths
- Genomics Research Centre, Griffith Health Institute, Griffith University, Gold Coast Campus, Building G05, GRIFFITH UNIVERSITY QLD 4222, Australia
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Association of MTHFR C677T Polymorphism with Susceptibility to Migraine in the Chinese population. Neurosci Lett 2013; 549:78-81. [DOI: 10.1016/j.neulet.2013.06.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/09/2013] [Accepted: 06/17/2013] [Indexed: 11/22/2022]
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Eising E, de Vries B, Ferrari MD, Terwindt GM, van den Maagdenberg AMJM. Pearls and pitfalls in genetic studies of migraine. Cephalalgia 2013; 33:614-25. [DOI: 10.1177/0333102413484988] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose of review Migraine is a prevalent neurovascular brain disorder with a strong genetic component, and different methodological approaches have been implemented to identify the genes involved. This review focuses on pearls and pitfalls of these approaches and genetic findings in migraine. Summary Common forms of migraine (i.e. migraine with and without aura) are thought to have a polygenic make-up, whereas rare familial hemiplegic migraine (FHM) presents with a monogenic pattern of inheritance. Until a few years ago only studies in FHM yielded causal genes, which were identified by a classical linkage analysis approach. Functional analyses of FHM gene mutations in cellular and transgenic animal models suggest abnormal glutamatergic neurotransmission as a possible key disease mechanism. Recently, a number of genes were discovered for the common forms of migraine using a genome-wide association (GWA) approach, which sheds first light on the pathophysiological mechanisms involved. Conclusions Novel technological strategies such as next-generation sequencing, which can be implemented in future genetic migraine research, may aid the identification of novel FHM genes and promote the search for the missing heritability of common migraine.
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Affiliation(s)
- Else Eising
- Department of Human Genetics, Leiden University Medical Centre, The Netherlands
| | - Boukje de Vries
- Department of Human Genetics, Leiden University Medical Centre, The Netherlands
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Centre, The Netherlands
| | - Gisela M Terwindt
- Department of Neurology, Leiden University Medical Centre, The Netherlands
| | - Arn MJM van den Maagdenberg
- Department of Human Genetics, Leiden University Medical Centre, The Netherlands
- Department of Neurology, Leiden University Medical Centre, The Netherlands
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Ducros A. Génétique de la migraine. Rev Neurol (Paris) 2013; 169:360-71. [DOI: 10.1016/j.neurol.2012.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 11/14/2012] [Indexed: 01/04/2023]
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Warren JW, Langenberg P, Clauw DJ. The number of existing functional somatic syndromes (FSSs) is an important risk factor for new, different FSSs. J Psychosom Res 2013; 74:12-7. [PMID: 23272983 DOI: 10.1016/j.jpsychores.2012.09.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 09/05/2012] [Accepted: 09/06/2012] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The objective of this study is to test the hypothesis that the number of functional somatic syndromes (FSSs) predicts new, additional FSSs. METHODS In a recent case-control study of interstitial cystitis/painful bladder syndrome (IC/PBS), we used symptom-based consensus definitions to identify these FSSs: fibromyalgia (FM), chronic fatigue syndrome (CFS), irritable bowel syndrome (IBS), chronic pelvic pain, migraine, sicca syndrome and panic disorder. Those present before the incidence year were called antecedent FSSs; those with onset during the incidence year were called incident FSSs. In each of two groups, 312 IC/PBS cases and 313 controls, rates of incident FSSs were compared among those with 0, 1, 2, or ≥3 antecedent FSSs. Confounding was assessed using logistic regression analyses that included the individual antecedent FSSs, published correlates of these FSSs, and demographic variables. RESULTS The incidence of a new FSS increased with the number of antecedent FSSs, as did that of incident FM, CFS and IBS studied separately. These findings were not confounded by other variables. The presence of multiple antecedent FSSs generally had the highest odds ratio for new, different, incident FSSs. CONCLUSIONS This study revealed that the number of antecedent FSSs was among the strongest risk factors for other FSSs, especially incident FM, CFS and IBS. This suggests that the FSSs are linked through a polysyndromic phenotype. If each FSS is heterogeneous, to seek a pathogenesis common to all FSSs, individuals with multiple FSSs should be sought; to seek a pathogenesis unique to a specific FSS, mature persons who have only that FSS should be studied.
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Affiliation(s)
- John W Warren
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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White N, Johnson H, Silburn P, Mengersen K. Dirichlet process mixture models for unsupervised clustering of symptoms in Parkinson's disease. J Appl Stat 2012. [DOI: 10.1080/02664763.2012.710897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ligthart L, Boomsma DI, Martin NG, Stubbe JH, Nyholt DR. Migraine With Aura and Migraine Without Aura Are Not Distinct Entities: Further Evidence From a Large Dutch Population Study. Twin Res Hum Genet 2012. [DOI: 10.1375/twin.9.1.54] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractIt is often debated whether migraine with aura (MA) and migraine without aura (MO) are etiologically distinct disorders. A previous study using latent class analysis (LCA) in Australian twins showed no evidence for separate subtypes of MO and MA. The aim of the present study was to replicate these results in a population of Dutch twins and their parents, siblings and partners (N = 10,144). Latent class analysis of International Headache Society (IHS)-based migraine symptoms resulted in the identification of 4 classes: a class of unaffected subjects (class 0), a mild form of nonmigrainous headache (class 1), a moderately severe type of migraine (class 2), typically without neurological symptoms or aura (8% reporting aura symptoms), and a severe type of migraine (class 3), typically with neurological symptoms, and aura symptoms in approximately half of the cases. Given the overlap of neurological symptoms and nonmutual exclusivity of aura symptoms, these results do not support the MO and MA subtypes as being etiologically distinct. The heritability in female twins of migraine based on LCA classification was estimated at .50 (95% confidence intervals [CI] .27 – .59), similar to IHS-based migraine diagnosis (h2 = .49, 95% CI .19–.57). However, using a dichotomous classification (affected–unaffected) decreased heritability for the IHS-based classification (h2 = .33, 95% CI .00–.60), but not the LCA-based classification (h2 = .51, 95% CI .23–.61). Importantly, use of the LCA-based classification increased the number of subjects classified as affected. The heritability of the screening question was similar to more detailed LCA and IHS classifications, suggesting that the screening procedure is an important determining factor in genetic studies of migraine.
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Cox HC, Lea RA, Bellis C, Nyholt DR, Dyer TD, Haupt LM, Charlesworth J, Matovinovic E, Blangero J, Griffiths LR. Heritability and genome-wide linkage analysis of migraine in the genetic isolate of Norfolk Island. Gene 2011; 494:119-23. [PMID: 22197687 DOI: 10.1016/j.gene.2011.11.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 11/02/2011] [Accepted: 11/22/2011] [Indexed: 10/14/2022]
Abstract
Migraine is a common neurovascular disorder with a complex envirogenomic aetiology. In an effort to identify migraine susceptibility genes, we conducted a study of the isolated population of Norfolk Island, Australia. A large portion of the permanent inhabitants of Norfolk Island are descended from 18th Century English sailors involved in the infamous mutiny on the Bounty and their Polynesian consorts. In total, 600 subjects were recruited including a large pedigree of 377 individuals with lineage to the founders. All individuals were phenotyped for migraine using International Classification of Headache Disorders-II criterion. All subjects were genotyped for a genome-wide panel of microsatellite markers. Genotype and phenotype data for the pedigree were analysed using heritability and linkage methods implemented in the programme SOLAR. Follow-up association analysis was performed using the CLUMP programme. A total of 154 migraine cases (25%) were identified indicating the Norfolk Island population is high-risk for migraine. Heritability estimation of the 377-member pedigree indicated a significant genetic component for migraine (h(2)=0.53, P=0.016). Linkage analysis showed peaks on chromosome 13q33.1 (P=0.003) and chromosome 9q22.32 (P=0.008). Association analysis of the key microsatellites in the remaining 223 unrelated Norfolk Island individuals showed evidence of association, which strengthen support for the linkage findings (P≤0.05). In conclusion, a genome-wide linkage analysis and follow-up association analysis of migraine in the genetic isolate of Norfolk Island provided evidence for migraine susceptibility loci on chromosomes 9q22.22 and 13q33.1.
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Affiliation(s)
- Hannah C Cox
- Genomics Research Centre, Griffith Health Institute, Gold Coast Campus, Griffith University, Queensland, Australia
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Schürks M. Genetics of migraine in the age of genome-wide association studies. J Headache Pain 2011; 13:1-9. [PMID: 22072275 PMCID: PMC3253157 DOI: 10.1007/s10194-011-0399-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 10/24/2011] [Indexed: 12/12/2022] Open
Abstract
Genetic factors importantly contribute to migraine. However, unlike for rare monogenic forms of migraine, approaches to identify genes for common forms of migraine have been of limited success. Candidate gene association studies were often negative and positive results were often not replicated or replication failed. Further, the significance of positive results from linkage studies remains unclear owing to the inability to pinpoint the genes under the peaks that may be involved in migraine. Problems hampering these studies include limited sample sizes, methods of migraine ascertainment, and the heterogeneous clinical phenotype. Three genome-wide association studies are available now and have successfully identified four new genetic variants associated with migraine. One new variant (rs1835740) modulates glutamate homeostasis, thus integrates well with current concepts of neurotransmitter disturbances. This variant may be more specific for severe forms of migraine such as migraine with aura than migraine without aura. Another variant (rs11172113) implicates the lipoprotein receptor LRP1, which may interact with neuronal glutamate receptors, thus also providing a link to the glutamate pathway. In contrast, rs10166942 is in close proximity to TRPM8, which codes for a cold and pain sensor. For the first time this links a gene explicitly implicated in pain related pathways to migraine. The potential function of the fourth variant rs2651899 (PRDM16) in migraine is unclear. All these variants only confer a small to moderate change in risk for migraine, which concurs with migraine being a heterogeneous disorder. Ongoing large international collaborations will likely identify additional gene variants for migraine.
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Affiliation(s)
- Markus Schürks
- Department of Neurology, University Hospital Essen, Hufelandstrasse 55, 45122, Essen, Germany.
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