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Saffie Awad P, Teixeira-Dos-Santos D, Santos-Lobato BL, Camargos S, Cornejo-Olivas M, de Mello Rieder CR, Mata IF, Chaná-Cuevas P, Klein C, Schumacher Schuh AF. Frequency of Hereditary and GBA1-Related Parkinsonism in Latin America: A Systematic Review and Meta-Analysis. Mov Disord 2024; 39:6-16. [PMID: 37921246 DOI: 10.1002/mds.29614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/28/2023] [Accepted: 09/05/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Identifying hereditary parkinsonism is valuable for diagnosis, genetic counseling, patient prioritization in trials, and studying the disease for personalized therapies. However, most studies were conducted in Europeans, and limited data exist on admixed populations like those from Latin America. OBJECTIVES This study aims to assess the frequency and distribution of genetic parkinsonism in Latin America. METHODS We conducted a systematic review and meta-analysis of the frequency of parkinsonian syndromes associated with genetic pathogenic variants in Latin America. We defined hereditary parkinsonism as those caused by the genes outlined by the MDS Nomenclature of Genetic Movement Disorders and heterozygous carriers of GBA1 pathogenic variants. A systematic search was conducted in PubMed, Web of Science, Embase, and LILACS in August 2022. Researchers reviewed titles and abstracts, and disagreements were resolved by a third researcher. After this screening, five researchers reanalyzed the selection criteria and extracted information based on the full paper. The frequency for each parkinsonism-related gene was determined by the presence of pathogenic/likely pathogenic variants among screened patients. Cochran's Q and I2 tests were used to quantify heterogeneity. Meta-regression, publication bias tests, and sensitivity analysis regarding study quality were also used for LRRK2-, PRKN-, and GBA1-related papers. RESULTS We included 73 studies involving 3014 screened studies from 16 countries. Among 7668 Latin American patients, pathogenic variants were found in 19 different genes. The frequency of the pathogenic variants in LRRK2 was 1.38% (95% confidence interval [CI]: 0.52-2.57), PRKN was 1.16% (95% CI: 0.08-3.05), and GBA1 was 4.17% (95% CI: 2.57-6.08). For all meta-analysis, heterogeneity was high and publication bias tests were negative, except for PRKN, which was contradictory. Information on the number of pathogenic variants in the other genes is further presented in the text. CONCLUSIONS This study provides insights into hereditary and GBA1-related parkinsonism in Latin America. Lower GBA1 frequencies compared to European/North American cohorts may result from limited access to gene sequencing. Further research is vital for regional prevalence understanding, enabling personalized care and therapies. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Paula Saffie Awad
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Centro de Trastornos del Movimiento (CETRAM), Santiago, Chile
- Clínica Santa María, Santiago, Chile
| | | | - Bruno Lopes Santos-Lobato
- Hospital Ophir Loyola, Belém, Brazil
- Laboratório de Neuropatologia Experimental, Universidade Federal do Pará, Belém, Brazil
| | - Sarah Camargos
- Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mario Cornejo-Olivas
- Neurogenetics Working Group, Universidad Científica del Sur, Lima, Peru
- Neurogenetics Research Center, Instituto Nacional de Ciencias Neurologicas, Lima, Peru
| | | | - Ignacio F Mata
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Pedro Chaná-Cuevas
- Centro de Trastornos del Movimiento (CETRAM), Santiago, Chile
- Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Artur F Schumacher Schuh
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Departamento de Farmacologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Saffie Awad P, Klein C. Reply to: "Non-GAA Repeat Expansions in FGF-14 Are Likely Not Pathogenic". Mov Disord 2023; 38:1577-1578. [PMID: 37565403 DOI: 10.1002/mds.29551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 08/12/2023] Open
Affiliation(s)
- Paula Saffie Awad
- Centro de Trastornos del Movimiento, Santiago, Chile
- Clínica Santa María, Santiago, Chile
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
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Saffie Awad P, Lohmann K, Hirmas Y, Hinrichs F, Thomsen M, Kauffman M, Lüth T, Trinh J, Westenberger A, Chaná-Cuevas P, Klein C. Shaking Up Ataxia: FGF14 and RFC1 Repeat Expansions in Affected and Unaffected Members of a Chilean Family. Mov Disord 2023; 38:1107-1109. [PMID: 37246629 DOI: 10.1002/mds.29390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 05/30/2023] Open
Affiliation(s)
- Paula Saffie Awad
- Centro de Trastornos del Movimiento, Santiago, Chile
- Clínica Santa María, Santiago, Chile
| | - Katja Lohmann
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | | | - Frauke Hinrichs
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Mirja Thomsen
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Marcelo Kauffman
- Neurogenetics Unit, Hospital General de Agudos José Maria Ramos Mejía, Buenos Aires, Argentina
- IIMT-FCB-Universidad Austral-CONICET, Buenos Aires, Argentina
| | - Theresa Lüth
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Joanne Trinh
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Ana Westenberger
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Pedro Chaná-Cuevas
- Centro de Trastornos del Movimiento, Santiago, Chile
- Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
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Awad PS, Mata I, Chana-Cuevas P. [Genetic revolution: New challenges and opportunities]. Rev Med Chil 2022; 150:1547-1548. [PMID: 37358183 DOI: 10.4067/s0034-98872022001101547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Affiliation(s)
| | - Ignacio Mata
- Cleveland Clinic Foundation, Lerner Research Institute, Genomic Medicine Institute, Cleveland, USA
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Gama MTD, Braga-Neto P, Rangel DM, Godeiro C, Alencar R, Embiruçu EK, Cornejo-Olivas M, Sarapura-Castro E, Saffie Awad P, Muñoz Chesta D, Kauffman M, Rodriguez-Quiroga S, Jardim LB, da Graça FF, França MC, Tomaselli PJ, Marques W, Teive HAG, Barsottini OGP, Pedroso JL, Synofzik M. Autosomal Recessive Cerebellar Ataxias in South America: A Multicenter Study of 1338 Patients. Mov Disord 2022; 37:1773-1774. [PMID: 35507441 DOI: 10.1002/mds.29046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/21/2022] [Accepted: 03/30/2022] [Indexed: 12/13/2022] Open
Affiliation(s)
- Maria Thereza D Gama
- Ataxia Unit, Department of Neurology, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Pedro Braga-Neto
- Neurology Section, Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará (UFC), Fortaleza, Brazil.,Neurology Service, Hospital Geral de Fortaleza, Fortaleza, Brazil
| | - Deborah M Rangel
- Neurology Section, Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará (UFC), Fortaleza, Brazil.,Neurology Service, Hospital Geral de Fortaleza, Fortaleza, Brazil
| | - Clécio Godeiro
- Neurology, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
| | - Rodrigo Alencar
- Neurology, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
| | - Emília K Embiruçu
- Medical Genetics Service, Hospital Universitário Professor Edgard Santos, Salvador, Brazil
| | - Mario Cornejo-Olivas
- Neurogenetics Research Center, Instituto Nacional de Ciencias Neurológicas, Lima, Peru.,Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | | | - Paula Saffie Awad
- CETRAM-Centro de Estudios de Transtornos del Movimiento, Santiago, Chile
| | - Daniela Muñoz Chesta
- CETRAM-Centro de Estudios de Transtornos del Movimiento, Santiago, Chile.,Hospital San Borra Arriarán, Santiago, Chile
| | - Marcelo Kauffman
- Neurogenetics Unit, Hospital General de Agudos José Maria Ramos Mejía, Buenos Aires, Argentina
| | | | - Laura B Jardim
- Departamento de Medicina Interna, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Centros de Pesquisa Clínica e Experimental, e Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Felipe F da Graça
- Department of Neurology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Marcondes C França
- Department of Neurology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Pedro J Tomaselli
- Department of Neuroscience and Behavioural Science, School of Medicine, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Wilson Marques
- Department of Neuroscience and Behavioural Science, School of Medicine, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Helio A G Teive
- Internal Medicine Department, Federal University of Paraná, Curitiba, Brazil
| | - Orlando G P Barsottini
- Ataxia Unit, Department of Neurology, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - José Luiz Pedroso
- Ataxia Unit, Department of Neurology, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Matthis Synofzik
- Department for Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, Tübingen, Germany.,German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
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Schumacher-Schuh A, Bieger A, Borelli WV, Portley MK, Awad PS, Bandres-Ciga S. Advances in Proteomic and Metabolomic Profiling of Neurodegenerative Diseases. Front Neurol 2022; 12:792227. [PMID: 35173667 PMCID: PMC8841717 DOI: 10.3389/fneur.2021.792227] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022] Open
Abstract
Proteomics and metabolomics are two emerging fields that hold promise to shine light on the molecular mechanisms causing neurodegenerative diseases. Research in this area may reveal and quantify specific metabolites and proteins that can be targeted by therapeutic interventions intended at halting or reversing the neurodegenerative process. This review aims at providing a general overview on the current status of proteomic and metabolomic profiling in neurodegenerative diseases. We focus on the most common neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. We discuss the relevance of state-of-the-art metabolomics and proteomics approaches and their potential for biomarker discovery. We critically review advancements made so far, highlighting how metabolomics and proteomics may have a significant impact in future therapeutic and biomarker development. Finally, we further outline technologies used so far as well as challenges and limitations, placing the current information in a future-facing context.
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Affiliation(s)
- Artur Schumacher-Schuh
- Departamento de Farmacologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Andrei Bieger
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Wyllians V. Borelli
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Makayla K. Portley
- Neurodegenerative Disorders Clinic, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Paula Saffie Awad
- Movement Disorders Clinic, Centro de Trastornos de Movimiento (CETRAM), Santiago, Chile
| | - Sara Bandres-Ciga
- Neurodegenerative Disorders Clinic, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
- Laboratory of Neurogenetics, Molecular Genetics Section, National Institute on Aging, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Sara Bandres-Ciga
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Saffie Awad P, Vial Undurraga F, Chaná-Cuevas P. [Clinical features of 63 patients with ataxia]. Rev Med Chil 2018; 146:702-707. [PMID: 30148901 DOI: 10.4067/s0034-98872018000600702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 05/11/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND Ataxia can be classified as genetic, sporadic or acquired. AIM To report the clinical features of a group of patients with ataxia. MATERIAL AND METHODS Review of medical records of patients consulting in a specialized center in movement disorders. Those records in which the diagnosis of "ataxia" or "ataxic syndrome" appeared, were selected for the review. RESULTS Of 4,282 records surveyed, the diagnosis of ataxia appeared in 95. After eliminating repeated or incomplete records, 63 were reviewed. RESULTS Ataxia was sporadic, genetic and acquired in 27, 22 and 14 patients, respectively. The mean age at presentation for genetic, acquired and sporadic ataxia was 24, 46 and 53 years respectively. All autosomal dominant ataxias were type 3 spinocerebellar ataxia (SCA). Friedrich's ataxia was the most common recessive form. Most sporadic forms of ataxia were multiple system atrophy with predominant cerebellar ataxia (MSA-C) subtype. CONCLUSIONS Considering the heterogeneity of patients with ataxia, we propose a method to approach them.
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