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Değerliyurt A, Gülleroğlu NB, Kibar Gül AE. Primary CoQ 10 deficiency with a severe phenotype due to the c.901 C > T (p.R301W) mutation in the COQ8A gene. Int J Neurosci 2024; 134:148-152. [PMID: 35757998 DOI: 10.1080/00207454.2022.2095269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 06/23/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE A patient with primary CoQ10 deficiency associated with the c.901 C > T (p.R301W) (rs140246430) homozygous missense pathogenic variant in the COQ8A gene, who presented with recurrent status epilepticus, stroke-like lesions, and hypertrophic cardiomyopathy while being followed-up with early-onset autosomal recessive cerebellar ataxia will be reported in this article. CASE REPORT A 16-year-old patient who was being followed up at an external center with a diagnosis of ataxia with cerebellar atrophy had been seen 3 different times within a year for status epilepticus. The cerebral MRI showed severe cerebellar atrophy, stroke like lesions, and an inverted double- lactate peak on spectroscopy. Her echocardiography revealed marked left ventricular hypertrophy. Mitochondrial cocktail therapy containing a standard dose of CoQ10 was started, considering mitochondrial disease. The patient died due to cardiomyopathy. Mitochondrial panel analysis revealed the presence of the c.901 C > T (p.R301W) homozygous missense mutation in the COQ8A gene. CONCLUSIONS Primary Coenzyme Q10 deficiency should be considered in patients presenting with autosomal recessive stable-appearing progressive ataxia, emerging attacks of status epilepticus, stroke-like lesions on neuroimaging, and cardiomyopathy. Since there is a case with the same mutation with a similar fatal course in the literature, detection of c.901 C > T (p.R301W) mutation homozygously should be a warning for a severe prognosis and more aggressive treatment should be started without delay with a high dose of CoQ10 instead of the lower doses used in the treatment of mitochondrial disease.
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Affiliation(s)
- Aydan Değerliyurt
- Deparment of Pediatric Neurology, Ankara City Hospital, Ankara, Turkey
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Lopriore P, Vista M, Tessa A, Giuntini M, Caldarazzo Ienco E, Mancuso M, Siciliano G, Santorelli FM, Orsucci D. Primary Coenzyme Q10 Deficiency-Related Ataxias. J Clin Med 2024; 13:2391. [PMID: 38673663 PMCID: PMC11050807 DOI: 10.3390/jcm13082391] [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: 03/13/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Cerebellar ataxia is a neurological syndrome characterized by the imbalance (e.g., truncal ataxia, gait ataxia) and incoordination of limbs while executing a task (dysmetria), caused by the dysfunction of the cerebellum or its connections. It is frequently associated with other signs of cerebellar dysfunction, including abnormal eye movements, dysmetria, kinetic tremor, dysarthria, and/or dysphagia. Among the so-termed mitochondrial ataxias, variants in genes encoding steps of the coenzyme Q10 biosynthetic pathway represent a common cause of autosomal recessive primary coenzyme Q10 deficiencies (PCoQD)s. PCoQD is a potentially treatable condition; therefore, a correct and timely diagnosis is essential. After a brief presentation of the illustrative case of an Italian woman with this condition (due to a novel homozygous nonsense mutation in COQ8A), this article will review ataxias due to PCoQD.
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Affiliation(s)
- Piervito Lopriore
- Unit of Neurology, San Luca Hospital, Via Lippi-Francesconi, 55100 Lucca, Italy; (P.L.); (M.V.); (M.G.); (E.C.I.)
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (M.M.); (G.S.)
| | - Marco Vista
- Unit of Neurology, San Luca Hospital, Via Lippi-Francesconi, 55100 Lucca, Italy; (P.L.); (M.V.); (M.G.); (E.C.I.)
| | - Alessandra Tessa
- Molecular Medicine, IRCCS Stella Maris Foundation, 56122 Pisa, Italy; (A.T.); (F.M.S.)
| | - Martina Giuntini
- Unit of Neurology, San Luca Hospital, Via Lippi-Francesconi, 55100 Lucca, Italy; (P.L.); (M.V.); (M.G.); (E.C.I.)
| | - Elena Caldarazzo Ienco
- Unit of Neurology, San Luca Hospital, Via Lippi-Francesconi, 55100 Lucca, Italy; (P.L.); (M.V.); (M.G.); (E.C.I.)
| | - Michelangelo Mancuso
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (M.M.); (G.S.)
| | - Gabriele Siciliano
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (M.M.); (G.S.)
| | | | - Daniele Orsucci
- Unit of Neurology, San Luca Hospital, Via Lippi-Francesconi, 55100 Lucca, Italy; (P.L.); (M.V.); (M.G.); (E.C.I.)
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Wang J, Lin Y, Xu Z, Yan C, Zhao Y, Ji K. Mitochondrial Dysfunction due to Novel COQ8A Variation with Poor Response to CoQ10 Treatment: A Comprehensive Study and Review of Literatures. CEREBELLUM (LONDON, ENGLAND) 2024:10.1007/s12311-024-01671-4. [PMID: 38429489 DOI: 10.1007/s12311-024-01671-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/15/2024] [Indexed: 03/03/2024]
Abstract
COQ8A plays an important role in the biosynthesis of coenzyme Q10 (CoQ10), and variations in COQ8A gene are associated with primary CoQ10 deficiency-4 (COQ10D4), also known as COQ8A-ataxia. The current understanding of the association between the specific variant type, the severity of CoQ10 deficiency, and the degree of oxidative stress in individuals with primary CoQ10 deficiencies remains uncertain. Here we provide a comprehensive analysis of the clinical and genetic characteristics of an 18-year-old patient with COQ8A-ataxia, who exhibited novel compound heterozygous variants (c.1904_1906del and c.637C > T) in the COQ8A gene. These variants reduced the expression levels of COQ8A and mitochondrial proteins in the patient's muscle and skin fibroblast samples, contributed to mitochondrial respiration deficiency, increased ROS production and altered mitochondrial membrane potential. It is worth noting that the optimal treatment for COQ8A-ataxia remains uncertain. Presently, therapy consists of CoQ10 supplementation, however, it did not yield significant improvement in our patient's symptoms. Additionally, we reviewed the response of CoQ10 supplementation and evolution of patients in previous literatures in detail. We found that only half of patients could got notable improvement in ataxia. This research aims to expand the genotype-phenotype spectrum of COQ10D4, address discrepancies in previous reviews regarding the effectiveness of CoQ10 in these disorders, and help to establish a standardized treatment protocol for COQ8A-ataxia.
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Affiliation(s)
- Jiayin Wang
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Yan Lin
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Zhihong Xu
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Chuanzhu Yan
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Mitochondrial Medicine Laboratory, Qilu Hospital (Qingdao), Shandong University, Qingdao, 266035, Shandong, China
- Brain Science Research Institute, Shandong University, Jinan, 250012, Shandong, China
| | - Yuying Zhao
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
| | - Kunqian Ji
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
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Pilotto F, Del Bondio A, Puccio H. Hereditary Ataxias: From Bench to Clinic, Where Do We Stand? Cells 2024; 13:319. [PMID: 38391932 PMCID: PMC10886822 DOI: 10.3390/cells13040319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024] Open
Abstract
Cerebellar ataxias are a wide heterogeneous group of movement disorders. Within this broad umbrella of diseases, there are both genetics and sporadic forms. The clinical presentation of these conditions can exhibit a diverse range of symptoms across different age groups, spanning from pure cerebellar manifestations to sensory ataxia and multisystemic diseases. Over the last few decades, advancements in our understanding of genetics and molecular pathophysiology related to both dominant and recessive ataxias have propelled the field forward, paving the way for innovative therapeutic strategies aimed at preventing and arresting the progression of these diseases. Nevertheless, the rarity of certain forms of ataxia continues to pose challenges, leading to limited insights into the etiology of the disease and the identification of target pathways. Additionally, the lack of suitable models hampers efforts to comprehensively understand the molecular foundations of disease's pathophysiology and test novel therapeutic interventions. In the following review, we describe the epidemiology, symptomatology, and pathological progression of hereditary ataxia, including both the prevalent and less common forms of these diseases. Furthermore, we illustrate the diverse molecular pathways and therapeutic approaches currently undergoing investigation in both pre-clinical studies and clinical trials. Finally, we address the existing and anticipated challenges within this field, encompassing both basic research and clinical endeavors.
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Affiliation(s)
- Federica Pilotto
- Institut Neuromyogène, Pathophysiology and Genetics of Neuron and Muscle, Inserm U1315, CNRS-Université Claude Bernard Lyon 1 UMR5261, 69008 Lyon, France
| | - Andrea Del Bondio
- Institut Neuromyogène, Pathophysiology and Genetics of Neuron and Muscle, Inserm U1315, CNRS-Université Claude Bernard Lyon 1 UMR5261, 69008 Lyon, France
| | - Hélène Puccio
- Institut Neuromyogène, Pathophysiology and Genetics of Neuron and Muscle, Inserm U1315, CNRS-Université Claude Bernard Lyon 1 UMR5261, 69008 Lyon, France
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Mantle D, Millichap L, Castro-Marrero J, Hargreaves IP. Primary Coenzyme Q10 Deficiency: An Update. Antioxidants (Basel) 2023; 12:1652. [PMID: 37627647 PMCID: PMC10451954 DOI: 10.3390/antiox12081652] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023] Open
Abstract
Coenzyme Q10 (CoQ10) has a number of vital functions in all cells, both mitochondrial and extra-mitochondrial. In addition to its key role in mitochondrial oxidative phosphorylation, CoQ10 serves as a lipid soluble antioxidant and plays an important role in fatty acid beta-oxidation and pyrimidine and lysosomal metabolism, as well as directly mediating the expression of a number of genes, including those involved in inflammation. Due to the multiplicity of roles in cell function, it is not surprising that a deficiency in CoQ10 has been implicated in the pathogenesis of a wide range of disorders. CoQ10 deficiency is broadly divided into primary and secondary types. Primary CoQ10 deficiency results from mutations in genes involved in the CoQ10 biosynthetic pathway. In man, at least 10 genes are required for the biosynthesis of functional CoQ10, a mutation in any one of which can result in a deficit in CoQ10 status. Patients may respond well to oral CoQ10 supplementation, although the condition must be recognised sufficiently early, before irreversible tissue damage has occurred. In this article, we have reviewed clinical studies (up to March 2023) relating to the identification of these deficiencies, and the therapeutic outcomes of CoQ10 supplementation; we have attempted to resolve the disparities between previous review articles regarding the usefulness or otherwise of CoQ10 supplementation in these disorders. In addition, we have highlighted several of the potential problems relating to CoQ10 supplementation in primary CoQ10 deficiency, as well as identifying unresolved issues relating to these disorders that require further research.
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Affiliation(s)
| | - Lauren Millichap
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK;
| | - Jesus Castro-Marrero
- Rheumatology Research Group, ME/CFS Research Unit, Vall d’Hebron Research Institute, Universitat Autonoma de Barcelona, 08035 Barcelona, Spain;
| | - Iain P. Hargreaves
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK;
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Romano A, Favetta M, Summa S, Schirinzi T, Bertini ES, Castelli E, Vasco G, Petrarca M. Upper Body Physical Rehabilitation for Children with Ataxia through IMU-Based Exergame. J Clin Med 2022; 11:jcm11041065. [PMID: 35207341 PMCID: PMC8876617 DOI: 10.3390/jcm11041065] [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: 01/18/2022] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Children with ataxia experience balance and movement coordination difficulties and needs intensive physical intervention to maintain functional abilities and counteract the disorder. Exergaming represents a valuable strategy to provide engaging physical intervention to children with ataxia, sustaining their motivation to perform the intervention. This paper aims to describe the effect of a home-conducted exergame-based exercise training for upper body movements control of children with ataxia on their ataxic symptoms, walking ability, and hand dexterity. Methods: Eighteen children with ataxia were randomly divided into intervention and control groups. Participants in the intervention group were asked to follow a 12-week motor activity program at home using the Niurion® exergame. Blind assessments of participants’ ataxic symptoms, dominant and non-dominant hand dexterity, and walking ability were conducted. Results: On average, the participants performed the intervention for 61.5% of the expected time. At the end of the training, participants in the intervention group showed improved hand dexterity that worsened in the control group. Conclusion: The presented exergame enhanced the participants’ hand dexterity. However, there is a need for exergames capable of maintaining a high level of players’ motivation in playing. It is advisable to plan a mixed intervention to take care of the multiple aspects of the disorder.
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Affiliation(s)
- Alberto Romano
- Movement Analysis and Robotics Laboratory (MAR Lab), Intensive Neurorehabilitation and Robotics Department, “Bambino Gesù” Children’s Hospital, IRCCS, 00050 Rome, Italy; (A.R.); (M.F.); (E.C.); (G.V.); (M.P.)
| | - Martina Favetta
- Movement Analysis and Robotics Laboratory (MAR Lab), Intensive Neurorehabilitation and Robotics Department, “Bambino Gesù” Children’s Hospital, IRCCS, 00050 Rome, Italy; (A.R.); (M.F.); (E.C.); (G.V.); (M.P.)
| | - Susanna Summa
- Movement Analysis and Robotics Laboratory (MAR Lab), Intensive Neurorehabilitation and Robotics Department, “Bambino Gesù” Children’s Hospital, IRCCS, 00050 Rome, Italy; (A.R.); (M.F.); (E.C.); (G.V.); (M.P.)
- Correspondence:
| | - Tommaso Schirinzi
- Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy;
| | - Enrico Silvio Bertini
- Unit of Neuromuscolar and Neurodegenerative Diseases, Department of Neurosciences, “Bambino Gesù” Children’s Hospital, IRCCS, 00146 Rome, Italy;
| | - Enrico Castelli
- Movement Analysis and Robotics Laboratory (MAR Lab), Intensive Neurorehabilitation and Robotics Department, “Bambino Gesù” Children’s Hospital, IRCCS, 00050 Rome, Italy; (A.R.); (M.F.); (E.C.); (G.V.); (M.P.)
| | - Gessica Vasco
- Movement Analysis and Robotics Laboratory (MAR Lab), Intensive Neurorehabilitation and Robotics Department, “Bambino Gesù” Children’s Hospital, IRCCS, 00050 Rome, Italy; (A.R.); (M.F.); (E.C.); (G.V.); (M.P.)
| | - Maurizio Petrarca
- Movement Analysis and Robotics Laboratory (MAR Lab), Intensive Neurorehabilitation and Robotics Department, “Bambino Gesù” Children’s Hospital, IRCCS, 00050 Rome, Italy; (A.R.); (M.F.); (E.C.); (G.V.); (M.P.)
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Alcázar-Fabra M, Rodríguez-Sánchez F, Trevisson E, Brea-Calvo G. Primary Coenzyme Q deficiencies: A literature review and online platform of clinical features to uncover genotype-phenotype correlations. Free Radic Biol Med 2021; 167:141-180. [PMID: 33677064 DOI: 10.1016/j.freeradbiomed.2021.02.046] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/13/2021] [Accepted: 02/26/2021] [Indexed: 12/13/2022]
Abstract
Primary Coenzyme Q (CoQ) deficiencies are clinically heterogeneous conditions and lack clear genotype-phenotype correlations, complicating diagnosis and prognostic assessment. Here we present a compilation of all the symptoms and patients with primary CoQ deficiency described in the literature so far and analyse the most common clinical manifestations associated with pathogenic variants identified in the different COQ genes. In addition, we identified new associations between the age of onset of symptoms and different pathogenic variants, which could help to a better diagnosis and guided treatment. To make these results useable for clinicians, we created an online platform (https://coenzymeQbiology.github.io/clinic-CoQ-deficiency) about clinical manifestations of primary CoQ deficiency that will be periodically updated to incorporate new information published in the literature. Since CoQ primary deficiency is a rare disease, the available data are still limited, but as new patients are added over time, this tool could become a key resource for a more efficient diagnosis of this pathology.
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Affiliation(s)
- María Alcázar-Fabra
- Centro Andaluz de Biología del Desarrollo, Universidad Pablo de Olavide-CSIC-JA and CIBERER, Instituto de Salud Carlos III, Seville, 41013, Spain
| | | | - Eva Trevisson
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padova, Padova, 35128, Italy; Istituto di Ricerca Pediatrica, Fondazione Città della Speranza, Padova, 35128, Italy.
| | - Gloria Brea-Calvo
- Centro Andaluz de Biología del Desarrollo, Universidad Pablo de Olavide-CSIC-JA and CIBERER, Instituto de Salud Carlos III, Seville, 41013, Spain.
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Summa S, Tartarisco G, Favetta M, Buzachis A, Romano A, Bernava GM, Sancesario A, Vasco G, Pioggia G, Petrarca M, Castelli E, Bertini E, Schirinzi T. Validation of low-cost system for gait assessment in children with ataxia. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2020; 196:105705. [PMID: 32846316 DOI: 10.1016/j.cmpb.2020.105705] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Ataxic syndromes include several rare, inherited and acquired conditions. One of the main issues is the absence of specific, and sensitive automatic evaluation tools and digital outcome measures to obtain a continuous monitoring of subjects' motor ability. OBJECTIVES This study aims to test the usability of the Kinect system for assessing ataxia severity, exploring the potentiality of clustering algorithms and validating this system with a standard motion capture system. METHODS Gait evaluation was performed by standardized gait analysis and by Kinect v2 during the same day in a cohort of young patient (mean age of 13.8±7.2). We analyzed the gait spatio-temporal parameters and we looked at the differences between the two systems through correlation and agreement tests. As well, we tested for possible correlations with the SARA scale as well. Finally, standard classification algorithm and principal components analysis were used to discern disease severity and groups. RESULTS We found biases and linear relationships between all the parameters. Significant correlations emerged between the SARA and the Speed, the Stride Length and the Step Length. PCA results, highlighting that a machine learning approach combined with Kinect-based evaluation shows great potential to automatically assess disease severity and diagnosis. CONCLUSIONS The spatio-temporal parameters measured by Kinect cannot be used interchangeably with those parameters acquired with standard motion capture system in clinical practice but can still provide fundamental information. Specifically, these results might bring to the development of a novel system to perform easy and quick evaluation of gait in young patients with ataxia, useful for patients stratification in terms of clinical severity and diagnosis.
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Affiliation(s)
- S Summa
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - G Tartarisco
- National Research Council of Italy (CNR), Institute for Biomedical Research and Innovation (IRIB), Messina, Italy.
| | - M Favetta
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - A Buzachis
- Department of Mathematics and Computer Science, University of Messina, Italy.
| | - A Romano
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - G M Bernava
- National Research Council of Italy (CNR), Institute for Biomedical Research and Innovation (IRIB), Messina, Italy.
| | - A Sancesario
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - G Vasco
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - G Pioggia
- National Research Council of Italy (CNR), Institute for Biomedical Research and Innovation (IRIB), Messina, Italy.
| | - M Petrarca
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - E Castelli
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy.
| | - E Bertini
- Unit of Neuromuscolar and Neurodegenerative Diseases, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy.
| | - T Schirinzi
- MARlab, Neuroscience and Neurorehabilitation Department, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy; Department Systems Medicine, University of Roma Tor Vergata, Rome, Italy.
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Summa S, Schirinzi T, Favetta M, Romano A, Minosse S, Diodato D, Olivieri G, Martinelli D, Sancesario A, Zanni G, Castelli E, Bertini E, Petrarca M, Vasco G. A wearable video-oculography based evaluation of saccades and respective clinical correlates in patients with early onset ataxia. J Neurosci Methods 2020; 338:108697. [DOI: 10.1016/j.jneumeth.2020.108697] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 11/28/2022]
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