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Zeng S, Zhou X, He R, Zhao Y, Liu Z, Xu Q, Guo J, Yan X, Li J, Tang B, Sun Q. Association Analysis of Essential Tremor-Associated Genetic Variants in Sporadic Late-Onset Parkinson's Disease. Tremor Other Hyperkinet Mov (N Y) 2024; 14:25. [PMID: 38737298 PMCID: PMC11086585 DOI: 10.5334/tohm.885] [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: 02/26/2024] [Accepted: 04/25/2024] [Indexed: 05/14/2024] Open
Abstract
Background Parkinson's disease (PD) and Essential tremor (ET) are the two most common tremor diseases with recognized genetic pathogenesis. The overlapping clinical features suggest they may share genetic predispositions. Our previous study systematically investigated the association between rare coding variants in ET-associated genes and early-onset PD (EOPD), and found the suggestive association between teneurin transmembrane protein 4 (TENM4) and EOPD. In the current research, we explored the potential genetic interplay between ET-associated genetic loci/genes and sporadic late-onset PD (LOPD). Methods We performed whole-genome sequencing in the 1962 sporadic LOPD cases and 1279 controls from mainland China. We first used logistic regression analysis to test the top 16 SNPs identified by the ET genome-wide association study for the association between ET and LOPD. Then we applied the optimized sequence kernel association testing to explore the rare variant burden of 33 ET-associated genes in this cohort. Results We did not observe a significant association between the included SNPs with LOPD. We also did not discover a significant burden of rare deleterious variants of ET-associated genes in association with LOPD risk. Conclusion Our results do not support the role of ET-associated genetic loci and variants in LOPD. Highlights 1962 cases and 1279 controls were recruited to study the potential genetic interplay between ET-associated genetic loci/variants and sporadic LOPD.No significant association between the ET-associated SNPs and LOPD were observed.No significant burden of rare deleterious variants of ET-associated gene in LOPD risk were found.
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Affiliation(s)
- Sheng Zeng
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
| | - Xun Zhou
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Runcheng He
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yuwen Zhao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Zhenhua Liu
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Qian Xu
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jifeng Guo
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xinxiang Yan
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jinchen Li
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Beisha Tang
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, 410008, China
| | - Qiying Sun
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, 410008, China
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Cao L, Gu L, Pu J, Lv D, Tian J, Yin X, Gao T, Song Z, Lu J, Zhao G, Zhang B, Yan Y, Zhao G. Association Analysis of 27 Single Nucleotide Polymorphisms in a Chinese Population with Essential Tremor. J Mol Neurosci 2023; 73:205-213. [PMID: 36929462 DOI: 10.1007/s12031-023-02106-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/17/2023] [Indexed: 03/18/2023]
Abstract
Genetic factors play a major role in essential tremor (ET) pathogenesis. This study aimed to assess variant burden in ET-associated genes in a relatively large Chinese population cohort. We genotyped 27 single nucleotide polymorphisms (SNPs) previously reported to be associated with ET by multiplex PCR amplicon sequencing assay in 488 familial and sporadic ET patients and 514 healthy controls (HCs). Then, we performed allelic and genotypic association test by Pearson chi-square test or Fisher's exact test. A total of 1002 samples were included in our analysis, consisting of 488 ET patients and 514 sex and age-matched HCs. For rs10937625, the C allele was linked to increased risk of ET (P = 0.019, OR = 1.503, 95% CI = 1.172-1.928). The carriers of the C/C homozygote and C/T heterozygote showed a significantly higher risk of ET, compared with the T/T homozygote under the dominant model (P = 0.019, OR = 1.628, 95% CI = 1.221-2.170). There were no statistically significant differences in the frequency of other SNPs between ET patients and healthy controls. Rs10937625 (STK32B) may increase the risk of ET in eastern Chinese population.
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Affiliation(s)
- Lanxiao Cao
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Luyan Gu
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiali Pu
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dayao Lv
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Tian
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinzhen Yin
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ting Gao
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhe Song
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jinyu Lu
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Gaohua Zhao
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Baorong Zhang
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yaping Yan
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Guohua Zhao
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. .,Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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3
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Liao C, Castonguay CE, Heilbron K, Vuokila V, Medeiros M, Houle G, Akçimen F, Ross JP, Catoire H, Diez-Fairen M, Kang J, Mueller SH, Girard SL, Hopfner F, Lorenz D, Clark LN, Soto-Beasley AI, Klebe S, Hallett M, Wszolek ZK, Pendziwiat M, Lorenzo-Betancor O, Seppi K, Berg D, Vilariño-Güell C, Postuma RB, Bernard G, Dupré N, Jankovic J, Testa CM, Ross OA, Arzberger T, Chouinard S, Louis ED, Mandich P, Vitale C, Barone P, García-Martín E, Alonso-Navarro H, Agúndez JAG, Jiménez-Jiménez FJ, Pastor P, Rajput A, Deuschl G, Kuhlenbaümer G, Meijer IA, Dion PA, Rouleau GA. Association of Essential Tremor With Novel Risk Loci: A Genome-Wide Association Study and Meta-analysis. JAMA Neurol 2022; 79:185-193. [PMID: 34982113 PMCID: PMC8728658 DOI: 10.1001/jamaneurol.2021.4781] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Question Can common genetic variants associated with essential tremor (ET) be identified? Findings In this genome-wide association study and meta-analysis including genetic data on 483 054 individuals, 5 genome-wide significant loci were associated with risk of ET and common variants were associated with approximately 18% of ET heritability. Meaning Findings of this study may help identify new genes and inform ET biology. Importance Essential tremor (ET) is one of the most common movement disorders, affecting 5% of the general population older than 65 years. Common variants are thought to contribute toward susceptibility to ET, but no variants have been robustly identified. Objective To identify common genetic factors associated with risk of ET. Design, Setting, and Participants Case-control genome-wide association study. Inverse-variance meta-analysis was used to combine cohorts. Multicenter samples collected from European populations were collected from January 2010 to September 2019 as part of an ongoing study. Included patients were clinically diagnosed with or reported having ET. Control individuals were not diagnosed with or reported to have ET. Of 485 250 individuals, data for 483 054 passed data quality control and were used. Main Outcomes and Measures Genotypes of common variants associated with risk of ET. Results Of the 483 054 individuals included, there were 7177 with ET (3693 [51.46%] female; mean [SD] age, 62.66 [15.12] years), and 475 877 control individuals (253 785 [53.33%] female; mean [SD] age, 56.40 [17.6] years). Five independent genome-wide significant loci and were identified and were associated with approximately 18% of ET heritability. Functional analyses found significant enrichment in the cerebellar hemisphere, cerebellum, and axonogenesis pathways. Genetic correlation (r), which measures the degree of genetic overlap, revealed significant common variant overlap with Parkinson disease (r, 0.28; P = 2.38 × 10−8) and depression (r, 0.12; P = 9.78 × 10−4). A separate fine-mapping of transcriptome-wide association hits identified genes such as BACE2, LRRN2, DHRS13, and LINC00323 in disease-relevant brain regions, such as the cerebellum. Conclusions and Relevance The results of this genome-wide association study suggest that a portion of ET heritability can be explained by common genetic variation and can help identify new common genetic risk factors for ET.
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Affiliation(s)
- Calwing Liao
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada.,Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Charles-Etienne Castonguay
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada.,Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | | | - Veikko Vuokila
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Miranda Medeiros
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Gabrielle Houle
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada.,Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Fulya Akçimen
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada.,Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Jay P Ross
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada.,Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Helene Catoire
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Monica Diez-Fairen
- Fundació Docència i Recerca Mútua Terrassa, University Hospital Mútua de Terrassa, Terrassa, Barcelona, Spain.,Movement Disorders Unit, Department of Neurology, University Hospital Mútua de Terrassa, Terrassa, Barcelona, Spain
| | - Jooeun Kang
- Division of Genetic Medicine, Department of Medicine, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Stefanie H Mueller
- Institute of Health Informatics, University College London, London, United Kingdom
| | - Simon L Girard
- Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Saguenay, Quebec, Canada.,Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | | | - Delia Lorenz
- University Children's Hospital, University of Würzburg, Wurzburg, Germany
| | - Lorraine N Clark
- Department of Pathology and Cell Biology, Taub Institute, Columbia University, New York, New York
| | | | - Stephan Klebe
- Department of Neurology, University Hospital Würzburg, Wurzburg, Germany.,Department of Neurology, University Hospital Essen, Essen, Germany
| | - Mark Hallett
- National Institute of Neurological Disorders and Stroke Intramural Research Program, National Institutes of Health, Bethesda, Maryland
| | | | - Manuela Pendziwiat
- Institute of Clinical Molecular Biology, University of Kiel, Kiel, Germany.,Department of Neuropediatrics, University Medical Center Schleswig-Holstein, University of Kiel, Kiel, Germany
| | - Oswaldo Lorenzo-Betancor
- Veterans Affairs Puget Sound Health Care System, Seattle, Washington.,Department of Neurology, University of Washington School of Medicine, Seattle
| | - Klaus Seppi
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
| | - Daniela Berg
- Department of Neurology, University Hospital Schleswig-Holstein, University of Kiel, Kiel, Germany
| | - Carles Vilariño-Güell
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ronald B Postuma
- Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Geneviève Bernard
- Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada.,Division of Pediatric Neurology, Departments of Pediatrics, Neurology and Neurosurgery, Montreal Children's Hospital, Montreal, Quebec, Canada.,Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Division of Medical Genetics, Department of Specialized Medicine, Montreal Children's Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - Nicolas Dupré
- Faculté de Médecine, Université Laval, Centre Hospitalier Universitaire de Québec (l'Enfant-Jésus), Quebec, Canada
| | - Joseph Jankovic
- Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, Texas
| | - Claudia M Testa
- Parkinson's and Movement Disorders Center, Department of Neurology, Virginia Commonwealth University, Richmond
| | - Owen A Ross
- Departments of Neuroscience and Clinical Genomics, Mayo Clinic Florida, Jacksonville
| | - Thomas Arzberger
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany.,Center for Neuropathology and Prion Research, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Sylvain Chouinard
- Unité des troubles du mouvement André Barbeau, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Elan D Louis
- Department of Neurology, The University of Texas Southwestern Medical Center, Dallas
| | - Paola Mandich
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health (DINOGMI), University of Genoa, Genova, Italy.,Istituto di Ricovero e Cura a Carattere Scientifico Policlinico, San Martino, Genova, Italy
| | - Carmine Vitale
- Department of Motor Sciences and Wellness, University Parthenope, Naples, Italy
| | - Paolo Barone
- Center for Neurodegenerative Disease (CEMAND), Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, Salerno, Italy
| | - Elena García-Martín
- University Institute of Molecular Pathology Biomarkers, UNEx, ARADyAL Instituto de Salud Carlos III, Caceres, Spain
| | | | - José A G Agúndez
- University Institute of Molecular Pathology Biomarkers, UNEx, ARADyAL Instituto de Salud Carlos III, Caceres, Spain
| | | | - Pau Pastor
- Fundació Docència i Recerca Mútua Terrassa, University Hospital Mútua de Terrassa, Terrassa, Barcelona, Spain
| | - Alex Rajput
- University of Saskatchewan, Saskatoon Health Authority, Saskatoon, Saskatchewan, Canada
| | - Günther Deuschl
- Department of Neurology, University Medical Center Schleswig Holstein, University of Kiel, Kiel, Germany
| | - Gregor Kuhlenbaümer
- Department of Neurology, University Hospital Schleswig-Holstein, University of Kiel, Kiel, Germany
| | - Inge A Meijer
- Department of Neuroscience and Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Patrick A Dion
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Guy A Rouleau
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada.,Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
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Abstract
Essential tremor (ET) is one of the most common movement disorders, with a reported >60 million affected individuals worldwide. The definition and underlying pathophysiology of ET are contentious. Patients present primarily with motor features such as postural and action tremors, but may also have other non-motor features, including cognitive impairment and neuropsychiatric symptoms. Genetics account for most of the ET risk but environmental factors may also be involved. However, the variable penetrance and challenges in validating data make gene-environment analysis difficult. Structural changes in cerebellar Purkinje cells and neighbouring neuronal populations have been observed in post-mortem studies, and other studies have found GABAergic dysfunction and dysregulation of the cerebellar-thalamic-cortical circuitry. Commonly prescribed medications include propranolol and primidone. Deep brain stimulation and ultrasound thalamotomy are surgical options in patients with medically intractable ET. Further research in post-mortem studies, and animal and cell-based models may help identify new pathophysiological clues and therapeutic targets and, together with advances in omics and machine learning, may facilitate the development of precision medicine for patients with ET.
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'Essential Tremor' Phenotype in FMR1 Premutation/Gray Zone Sibling Series: Exploring Possible Genetic Modifiers. Twin Res Hum Genet 2021; 24:95-102. [PMID: 33757613 DOI: 10.1017/thg.2021.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Fragile X-associated tremor/ataxia syndrome (FXTAS) occurs in carriers of fragile X mental retardation 1 (FMR1) X-linked small CGG expansion (gray zone [GZ] and premutation [PM]) alleles, containing 41-200 repeats. Major features comprise kinetic tremor, gait ataxia, cognitive decline and cerebellar peduncular white matter lesions, but atypical/incomplete FXTAS may occur. We explored the possibility of polygenic effects modifying the FXTAS spectrum phenotypes. We used three motor scales and selected cognitive tests in a series of three males and three females from a single sibship carrying PM or GZ alleles (44 to 75 repeats). The molecular profiles from these siblings were determined by genomewide association study with single-nucleotide polymorphism (SNP) genotyping by Illumina Global Screening Array. Nonparametric linkage analysis was applied and Parkinson's disease (PD) polygenic risk scores (PRSs) were calculated for all the siblings, based on 107 known risk variants. All male and female siblings manifested similar kinetic tremor phenotypes. In contrast to FXTAS, they showed negligible gait ataxia, and few white matter lesions on MRI. Cognitive functioning was unaffected. Suggestive evidence of linkage to a broad region of the short arm of chromosome 10 was obtained, and median PD PRS for the sibship fell within the top 30% of a sample of over 500,000 UK and Australian controls. The genomewide study results are suggestive of modifying effects of genetic risk loci linked to PD, on the neurological phenotype of FMR1-CGG small expansion carriers, resulting in an oligosymptomatic kinetic tremor seen in FXTAS spectrum, but also consistent with essential tremor.
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6
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Liang D, Zhao Y, Pan H, Zhou X, He R, Zhou X, Yang J, Wang Y, Zhou X, Zhou Z, Xu Q, Yan X, Li J, Guo J, Tang B, Sun Q. Rare variant analysis of essential tremor-associated genes in early-onset Parkinson's disease. Ann Clin Transl Neurol 2020; 8:119-125. [PMID: 33185019 PMCID: PMC7818165 DOI: 10.1002/acn3.51248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/09/2020] [Accepted: 10/23/2020] [Indexed: 11/16/2022] Open
Abstract
Objective Parkinson’s disease (PD) and essential tremor (ET) are the two most common movement disorders. A significant overlap in clinical features, epidemiology, imaging, and pathology suggests that PD and ET may also share common genetic risk factors. Previous studies have only assessed a limited number of ET‐associated genes in PD patients and vice versa. Consequently, the genetic association between PD and ET remains incompletely characterized. In this study, we systematically investigated a potential association between rare coding variants in ET‐associated genes and PD, in a relatively large Chinese population cohort. Methods To investigate the genetic association between ET and PD, we performed the sequence kernel association testing (SKAT‐O) to explore the variant burden of 33 ET‐associated genes, using whole‐exome sequencing (WES) data from 1494 early‐onset PD (EOPD) patients and 1357 control subjects from mainland China. Results We report that rare loss‐of‐function and damaging missense variants of TNEM4 are suggestively associated with EOPD (P = 0.026), damaging missense variants of TNEM4 alone are also suggestively associated with EOPD (P = 0.032). No other rare damaging variants in ET‐related genes were significantly associated with EOPD. Interpretation This is the first systematic analysis of ET‐associated genes in EOPD. The suggestive association between TNEM4 and EOPD provides new evidence for a genetic link between ET and PD.
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Affiliation(s)
- Dongxiao Liang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yuwen Zhao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Hongxu Pan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xun Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Runcheng He
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xiaoxia Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jinxia Yang
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yige Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xiaoting Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Zhou Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Qian Xu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 41008, China
| | - Xinxiang Yan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 41008, China
| | - Jinchen Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 41008, China.,Centre for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410008, China
| | - Jifeng Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 41008, China.,Centre for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410008, China
| | - Beisha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 41008, China.,Centre for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410008, China
| | - Qiying Sun
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 41008, China
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7
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Yang HL, Jiang L, Pan HX, Xu K, Zhao YW, Liu ZH, Xu Q, Sun QY, Tan JQ, Li JC, Tang BS, Guo JF. Assessment of the association between NUS1 variants and essential tremor. Neurosci Lett 2020; 740:135441. [PMID: 33184037 DOI: 10.1016/j.neulet.2020.135441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/28/2020] [Accepted: 10/10/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND A recent study on early onset Parkinson's disease (PD) revealed that NUS1 is a risk gene for PD. Clinically, essential tremor (ET) is closely related to PD. In this study, we aimed to detect NUS1 variants and assess the effect of those variants on patients with ET. METHODS The 5 coding regions and the exon-intron boundaries of NUS1 were directly sequenced in 395 patients with ET and an equal number of healthy controls, matched for age and sex. The function of variants was assessed by pathogenic predictive software programs. Genetic analysis of variants was used to evaluate susceptibility to ET. RESULTS A total of 6 exonic variants were identified, including 3 synonymous and 3 missense variants. The non-synonymous variants were predicted to be tolerable. No variants had significant association with ET (none of the p-values were less than 0.05, using Fisher's exact test). CONCLUSION Our study suggested that NUS1 variants may not contribute to the risk of ET.
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Affiliation(s)
- Hong-Lan Yang
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Li Jiang
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Hong-Xu Pan
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Ke Xu
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Yu-Wen Zhao
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Zhen-Hua Liu
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Qian Xu
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Qi-Ying Sun
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jie-Qiong Tan
- Center for Medical Genetics, School of Life Sciences, Central South University, 410078 Changsha, China
| | - Jin-Chen Li
- National Clinical Research Center for Geriatric Disorders, Central South University, 410008 Changsha, Hunan, China
| | - Bei-Sha Tang
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China; Center for Medical Genetics, School of Life Sciences, Central South University, 410078 Changsha, China; National Clinical Research Center for Geriatric Disorders, Central South University, 410008 Changsha, Hunan, China; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, 410008, Changsha, Hunan, China
| | - Ji-Feng Guo
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China; Center for Medical Genetics, School of Life Sciences, Central South University, 410078 Changsha, China; National Clinical Research Center for Geriatric Disorders, Central South University, 410008 Changsha, Hunan, China; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, 410008, Changsha, Hunan, China.
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Abstract
Highlights In the current review, we thoroughly reviewed 74 identified articles regarding genes and genetic loci that confer susceptibility to ET. Over 50 genes/genetic loci have been examined for possible association with ET, but consistent results failed to be reported raising the need for collaborative multiethnic studies. Background: Essential tremor (ET) is a common movement disorder, which is mainly characterized by bilateral tremor (postural and/or kinetic) in the upper limbs, with other parts of the body possibly involved. While the pathophysiology of ET is still unclear, there is accumulating evidence indicating that genetic variability may be heavily involved in ET pathogenesis. This review focuses on the role of genetic risk factors in ET susceptibility. Methods: The PubMed database was searched for articles written in English, for studies with humans with ET, controls without ET, and genetic variants. The terms “essential tremor” and “polymorphism” (as free words) were used during search. We also performed meta-analyses for the most examined genetic variants. Results: Seventy four articles concerning LINGO1, LINGO2, LINGO4, SLC1A2, STK32B, PPARGC1A, CTNNA3, DRD3, ALAD, VDR, HMOX1, HMOX2, LRRK1,LRRK2, GBA, SNCA, MAPT, FUS, CYPsIL17A, IL1B, NOS1, ADH1B, TREM2, RIT2, HNMT, MTHFR, PPP2R2B, GSTP1, PON1, GABA receptors and GABA transporter, HS1BP3, ADH2, hSKCa3 and CACNL1A4 genes, and ETM genetic loci were included in the current review. Results from meta-analyses revealed a marginal association for the STK32B rs10937625 and a marginal trend for association (in sensitivity analysis) for the LINGO1 rs9652490, with ET. Discussion: Quite a few variants have been examined for their possible association with ET. LINGO1 rs9652490 and STK32B rs10937625 appear to influence, to some extent, ET susceptibility. However, the conflicting results and the lack of replication for many candidate genes raise the need for collaborative multiethnic studies.
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9
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Abstract
Essential tremor (ET) is a neurological movement disorder characterised by bilateral limb kinetic/postural tremor, with or without tremor in other body parts including head, voice and lower limbs. Since no causative genes for ET have been identified, it is likely that the disorder occurs as a result of complex genetic factors interacting with various cellular and environmental factors that can result in abnormal function of circuitry involving the cerebello-thalamo-cortical pathway. Genetic analyses have uncovered at least 14 loci and 11 genes that are related to ET, as well as various risk or protective genetic factors. Limitations in ET genetic analyses include inconsistent disease definition, small sample size, varied ethnic backgrounds and many other factors that may contribute to paucity of relevant genetic data in ET. Genetic analyses, coupled with functional and animal studies, have led to better insights into possible pathogenic mechanisms underlying ET. These genetic studies may guide the future development of genetic testing and counselling, and specific, pathogenesis-targeted, therapeutic strategies.
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He D, Yuan L, Song Z, Deng X, Chen Y, Lu H, Deng H. Lack of association between methylenetetrahydrofolate reductase gene variants & essential tremor in Han Chinese. Indian J Med Res 2019; 149:67-70. [PMID: 31115378 PMCID: PMC6507536 DOI: 10.4103/ijmr.ijmr_432_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Dan He
- Center for Experimental Medicine; Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, PR China
| | - Lamei Yuan
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, PR China
| | - Zhi Song
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, PR China
| | - Xiong Deng
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, PR China
| | - Yizhi Chen
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, PR China
| | - Hongwei Lu
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, PR China
| | - Hao Deng
- Center for Experimental Medicine; Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, PR China
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