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Kuin REM, Groothuis JT, Buit P, Janssen MCH, Knuijt S. Dysarthria and dysphagia in patients with mitochondrial diseases. Mol Genet Metab 2024; 142:108510. [PMID: 38843620 DOI: 10.1016/j.ymgme.2024.108510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 07/05/2024]
Abstract
BACKGROUND Information about dysarthria and dysphagia in mitochondrial diseases (MD) is scarce. However, this knowledge is needed to identify speech and swallowing problems early, to monitor the disease course, and to develop and offer optimal treatment and support. This study therefore aims to examine the prevalence and severity of dysarthria and dysphagia in patients with MD and its relation to clinical phenotype and disease severity. Secondary aim is to determine clinically relevant outcome measures for natural history studies and clinical trials. METHODS This retrospective cross-sectional medical record study includes adults (age ≥ 18 years) diagnosed with genetically confirmed MD who participated in a multidisciplinary admission within the Radboud center for mitochondrial medicine between January 2015 and April 2023. Dysarthria and dysphagia were examined by administering the Radboud dysarthria assessment, swallowing speed, dysphagia limit, test of mastication and swallowing solids (TOMASS), and 6-min mastication test (6MMT). The disease severity was assessed using the Newcastle mitochondrial disease scale for adults (NMDAS). RESULTS The study included 224 patients with MD with a median age of 42 years of whom 37.5% were male. The pooled prevalence of dysarthria was 33.8% and of dysphagia 35%. Patients with MD showed a negative deviation from the norm on swallowing speed, TOMASS (total time) and the 6MMT. Furthermore, a significant moderate relation was found between the presence of dysarthria and the clinical phenotypes. There was a statistically significant difference in total time on the TOMASS between the clinical phenotypes. Finally, disease severity showed a significant moderate relation with the severity of dysarthria and a significant weak relation with the severity of dysphagia. CONCLUSION Dysarthria and dysphagia occur in about one-third of patients with MD. It is important for treating physicians to pay attention to this subject because of the influence of both disorders on social participation and wellbeing. Referral to a speech and language therapist should therefore be considered, especially in patients with a more severe clinical phenotype. The swallowing speed, TOMASS and 6MMT are the most clinically relevant tests to administer.
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Affiliation(s)
- R E M Kuin
- Radboud University Nijmegen, MA Speech-Language Pathology, Nijmegen, the Netherlands
| | - J T Groothuis
- Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine (RCMM), Nijmegen, the Netherlands
| | - P Buit
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine (RCMM), Nijmegen, the Netherlands
| | - M C H Janssen
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine (RCMM), Nijmegen, the Netherlands
| | - S Knuijt
- Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine (RCMM), Nijmegen, the Netherlands.
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Dodderi T, Flerisa LM, Fathima N, Balasubramanium RK. Assessing Swallowing and Mastication Using the Swallowing Proficiency for Eating and Drinking Protocol Among Healthy Adults. Indian J Otolaryngol Head Neck Surg 2024; 76:2590-2600. [PMID: 38883485 PMCID: PMC11169404 DOI: 10.1007/s12070-024-04575-1] [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: 01/01/2024] [Accepted: 02/19/2024] [Indexed: 06/18/2024] Open
Abstract
BACKGROUND Objective evaluation of swallowing using single bolus consistency are popular among Speech-Language Pathologists (SLPs) but has limited generalization to other bolus consistencies. The Swallowing Proficiency for Eating and Drinking (SPEAD) test assesses the oral and pharyngeal phases of swallowing using three different consistencies. OBJECTIVES The aim of this study was to establish normative data for the SPEAD test among healthy individuals aged 20-79 years. METHOD AND MATERIALS One hundred and twelve healthy adults recruited from the community were divided into three age groups (20-39.11, 40-59.11, & 60-79.11 years). Participants swallowing 100 g of water and thickened Electral, and 6.67 g of Parle Monaco was video recorded for data analysis. RESULTS Cronbachs Alpha test indicated good to excellent internal consistency and inter-class correlation test revealed a high level of inter-rater reliability for all SPEAD parameters. Older adults exhibited a higher number of bites, chews, and swallows, and required more time to swallow compared to younger and middle adults. Similarly, speed of ingestion and SPEAD rate were lowest in older adults. SPEAD indices also showed significant differences across the three consistencies at p < 0.01. CONCLUSION In summary, the SPEAD test was found to be feasible, reliable, and valid in healthy adults of India between 20 and 79 years of age. The age and sex based normative data established in this study will enable SLPs in assessing the presence and / or absence of swallowing difficulties in the oral and pharyngeal phases across different consistencies using one test.
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Affiliation(s)
- Thejaswi Dodderi
- Department of Audiology and Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Luis Malvika Flerisa
- Department of Audiology and Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Nidha Fathima
- Department of Audiology and Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Radish Kumar Balasubramanium
- Department of Audiology and Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
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van Bruggen HW, Wijngaarde CA, Asselman F, Stam M, Creugers NH, Wadman RI, van der Pol WL, Kalaykova SI. Natural History of Mandibular Function in Spinal Muscular Atrophy Types 2 and 3. J Neuromuscul Dis 2024; 11:655-664. [PMID: 38517801 PMCID: PMC11091609 DOI: 10.3233/jnd-240007] [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] [Accepted: 02/14/2024] [Indexed: 03/24/2024]
Abstract
Background Hereditary proximal spinal muscular atrophy (SMA) is characterized by abnormal alpha motor neuron function in brainstem and spinal cord. Bulbar dysfunction, including limited mouth opening, is present in the majority of patients with SMA but it is unknown if and how these problems change during disease course. Objective In this prospective, observational, longitudinal natural history study we aimed to study bulbar dysfunction in patients with SMA types 2 and 3. Methods We included 44 patients with SMA types 2 and 3 (mean age was 33.6 (95% CI 28.4;38.9) and re-examined them after on average 4 years. None were treated with SMN-modulating treatments before or during the course of this study. Longitudinal assessments included a questionnaire on mandibular and bulbar function, the Mandibular Function Impairment Questionnaire (MFIQ), and a clinical examination of masticatory performance, maximum voluntary bite force, and mandibular movements including the active maximal mouth opening. Results We found significant higher MFIQ scores and a significant decrease of all mandibular movements in patients with SMA type 2 (p < 0.001), but not in SMA type 3. Masticatory performance and maximum voluntary bite force did not change significantly. Mean reduction of active maximal mouth opening at follow-up was 3.5 mm in SMA type 2 (95% CI: 2.3; 4.7, p < 0.001). SMA type 2 was an independent predictor for a more severe reduction of the mouth opening (β= -2.0 mm (95% CI: -3.8; -0.1, p = 0.043)). Conclusions Bulbar functions such as mandibular mobility and active maximum mouth opening decrease significantly over the course of four years in patients with SMA type 2.
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Affiliation(s)
| | - Camiel A. Wijngaarde
- Department of Neurology and Neurosurgery and Spieren voor Spieren Kindercentrum, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Faylynn Asselman
- Department of Neurology and Neurosurgery and Spieren voor Spieren Kindercentrum, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Marloes Stam
- Department of Neurology and Neurosurgery and Spieren voor Spieren Kindercentrum, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Nico H.J. Creugers
- Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Renske I. Wadman
- Department of Neurology and Neurosurgery and Spieren voor Spieren Kindercentrum, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - W. Ludo van der Pol
- Department of Neurology and Neurosurgery and Spieren voor Spieren Kindercentrum, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Stanimira I. Kalaykova
- Department of Dentistry, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
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Rodriguez-Torres RS, Uher D, Gay EL, Coratti G, Dunaway Young S, Rohwer A, Muni Lofra R, De Vivo DC, Hirano M, Glynn NW, Montes J. Measuring Fatigue and Fatigability in Spinal Muscular Atrophy (SMA): Challenges and Opportunities. J Clin Med 2023; 12:jcm12103458. [PMID: 37240564 DOI: 10.3390/jcm12103458] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Fatigue, a common symptom, together with the characteristic of performance fatigability, are well-documented features of SMA that impact quality of life and function. Importantly, establishing associations between multidimensional self-reported fatigue scales and patient performance has proven difficult. This review was conducted to evaluate the various patient-reported fatigue scales applied in SMA, with the objective of considering the limitations and advantages of each measure. Variable use of fatigue-related nomenclature, including conflicting terminology interpretation, has affected assessment of physical fatigue attributes, specifically perceived fatigability. This review encourages the development of original patient-reported scales to enable perceived fatigability assessment, providing a potential complementary method of evaluating treatment response.
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Affiliation(s)
- Rafael S Rodriguez-Torres
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
- Department of Rehabilitation and Regenerative Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - David Uher
- Department of Rehabilitation and Regenerative Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY 10115, USA
| | - Emma L Gay
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Giorgia Coratti
- Pediatric Neurology Unit, Catholic University, 00135 Rome, Italy
- Centro Clinico Nemo, U.O.C. Neuropsichiatria Infantile Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Sally Dunaway Young
- Department of Neurology and Clinical Neurosciences, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Annemarie Rohwer
- Dubowitz Neuromuscular Centre, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, UK
| | - Robert Muni Lofra
- The John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 7RU, UK
| | - Darryl C De Vivo
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Michio Hirano
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Nancy W Glynn
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jacqueline Montes
- Department of Rehabilitation and Regenerative Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
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van der Heul AMB, van Eijk RPA, Wadman RI, Asselman F, Cuppen I, Nievelstein RAJ, Gerrits E, van der Pol WL, van den Engel-Hoek L. Mastication in Patients with Spinal Muscular Atrophy Types 2 and 3 is Characterized by Abnormal Efficiency, Reduced Endurance, and Fatigue. Dysphagia 2021; 37:715-723. [PMID: 34392389 PMCID: PMC9345836 DOI: 10.1007/s00455-021-10351-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/02/2021] [Indexed: 11/30/2022]
Abstract
Mastication problems can have a negative impact on the intake of food and quality of life. This cross-sectional study characterizes mastication problems using clinical and instrumental assessments in patients with spinal muscular atrophy (SMA) types 2 and 3 with self-reported bulbar problems. We included 27 patients (aged 13–67 years), 18 with SMA type 2 and 9 patients with SMA type 3 (of whom three were still ambulant) and applied a questionnaire, clinical mastication tests (TOMASS and 6-min mastication test), and muscle ultrasound of the mastication muscles. Non-ambulant patients demonstrated inefficient mastication as reflected by median z scores for masticatory cycles (z = 1.8), number of swallows (z = 4.3) and time needed to finish the cracker (z = 3.4), and limited endurance of continuous mastication as demonstrated by the median z scores of the 6-min mastication test (z = − 1.5). Patients reported increased fatigue directly after the 6-min mastication test as well as 5 min after completing the test (p < 0.001; p = 0.003). Reduced maximal mouth opening was associated with mastication problems (p < 0.001). Muscle ultrasound of the mastication muscles showed an abnormal muscle structure in 90% of both ambulant and non-ambulant patients. This study aims to understand the nature and underlying mechanisms of mastication problems in patients with SMA types 2 and 3 with reported bulbar problems.
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Affiliation(s)
- A M B van der Heul
- Department of Neurology & Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - R P A van Eijk
- Department of Neurology & Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands.,Biostatistics & Research Support, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - R I Wadman
- Department of Neurology & Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - F Asselman
- Department of Neurology & Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - I Cuppen
- Department of Neurology & Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - R A J Nievelstein
- Department of Radiology & Nuclear Medicine, Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - E Gerrits
- Department of Languages, Literature and Communication, Utrecht Institute of Linguistics OTS, Utrecht University, Utrecht, The Netherlands
| | - W L van der Pol
- Department of Neurology & Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - L van den Engel-Hoek
- Department of Rehabilitation, Donders Center for Neuroscience, Radboud University Medical Center, Nijmegen, The Netherlands
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Allen JE, Clunie GM, Winiker K. Ultrasound: an emerging modality for the dysphagia assessment toolkit? Curr Opin Otolaryngol Head Neck Surg 2021; 29:213-218. [PMID: 33741822 PMCID: PMC7611059 DOI: 10.1097/moo.0000000000000708] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE OF REVIEW Videofluoroscopy (VFSS) and fibreoptic endoscopic evaluation of swallowing (FEES) are established instrumental techniques to support differential diagnosis and treatment of oropharyngeal dysphagia. Whilst their value is undisputed, each tool is not without limitations. The COVID-19 pandemic has restricted access to VFSS and FEES leading clinicians to explore alternative or augmentative tools to support swallowing assessment.Ultrasound (US) is an established tool for visualisation of head and neck anatomy, including structures implicated in swallowing. Although US has been utilised in swallowing research for many years, its application has not translated into common clinical practice. This review presents and debates the evidence for and against use of US for clinical swallowing assessment. RECENT FINDINGS Evaluation of swallowing muscle morphometry and measurement of isolated swallowing kinematics are two primary uses of US in swallowing assessment that have been identified in the literature. Use of US to detect bolus flow, aspiration and residues is in its early stages and needs further research. SUMMARY US shows promise as an adjunctive modality to support assessment of swallowing. With standardisation, these measurements may have potential for transition into clinical care. Reliability and validity testing and development of normative data are imperative to ensure its use as an evidence-based instrumentation.
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Affiliation(s)
- Jodi E Allen
- University College London Hospitals NHS Foundation Trust, National Hospital for Neurology & Neurosurgery
| | - Gemma M Clunie
- National Centre for Airway Reconstruction, Department of Otolaryngology, Head and Neck Surgery, Imperial College Healthcare NHS Trust
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Katharina Winiker
- Swiss University of Speech and Language Sciences SHLR, Rorschach, Switzerland
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In't Veld WJA, de Pijper I, van Gerven M, van den Engel-Hoek L. Two mastication tests used in children with down syndrome: A feasibility study. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2020; 64:280-286. [PMID: 31981265 DOI: 10.1111/jir.12693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 08/08/2019] [Accepted: 09/15/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Children with Down syndrome can have problems with chewing and swallowing. However, no objective tests are available that give information about the efficiency and endurance of mastication. In this study, the feasibility of two mastication tests is studied by answering two research questions: are the Test of Mastication and Swallowing of Solids and the 6-min mastication test feasible to use in children with Down syndrome? Do these tests give information about the mastication efficiency and endurance in these children? METHOD A total of 24 (4-18 years) children with Down syndrome participated. The collected variables in the Test of Mastication and Swallowing of Solids were masticatory time, discrete bites, masticatory cycles and number of swallows per cracker. The inter-rater reliability of these variables was tested. Collected variables in the 6-min mastication test were total masticatory cycles and percentage difference between minutes 1 and 6. Qualitative ratings of masticatory movements were made. In both tests, a comparison with a typically developing group was made. RESULTS In both tests, a total of 87.5% of the children completed the test. Both tests are feasible for children with Down syndrome with language comprehension skills of 3 years and over. CONCLUSIONS The tests give information about the function and endurance during mastication in children with Down syndrome. The results showed that children with Down syndrome do not have endurance problems during mastication, but there is a lack of efficiency in mastication.
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Affiliation(s)
| | | | - M van Gerven
- Donders Centre for Neuroscience, Department of Rehabilitation, Radboud University Medical Center, Nijmegen, The Netherlands
| | - L van den Engel-Hoek
- Donders Centre for Neuroscience, Department of Rehabilitation, Radboud University Medical Center, Nijmegen, The Netherlands
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Zweers HEE, Bordier V, In 't Hulst J, Janssen MCH, Wanten GJA, Leij-Halfwerk S. Association of Body Composition, Physical Functioning, and Protein Intake in Adult Patients With Mitochondrial Diseases. JPEN J Parenter Enteral Nutr 2020; 45:165-174. [PMID: 32189351 PMCID: PMC7891597 DOI: 10.1002/jpen.1826] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/08/2019] [Accepted: 02/25/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Whether decreased physical functioning of patients with mitochondrial disease (MD) is related to altered body composition or low protein intake needs clarification at the background of the nutrition state. METHODS In this 2-site cross-sectional study, MD patients were age-, body mass index (BMI)-, and gender-matched to controls. Body composition was assessed by dual-energy x-ray absorptiometry. Physical functioning was measured by handgrip strength, 6-minute walking test, 30-second sit-to-stand test (30SCT), and 6-minute mastication test. Total daily protein intake was calculated by 3-day food records. Malnutrition was assessed by Patient-Generated Subjective Global Assessment and the Global Leadership Initiative on Malnutrition (GLIM) criteria and sarcopenia by the 2018 consensus. Data were analyzed using independent samples t-tests, Fisher exact test, and Spearman and Pearson correlation coefficients. RESULTS Thirty-seven MD patients (42 ± 12 years, BMI: 23 ± 4 kg/m2 , 59% females) and 37 matched controls were included. Handgrip strength was moderate, inversely related to fat mass index in both MD patients and controls, whereas it correlated with fat-free mass index in controls solely. Protein intake was associated with muscle strength (handgrip strength and 30SCT) in MD patients but not in controls. Twenty-seven MD patients (73%) were malnourished, and 5 (14%) were classified as sarcopenic. CONCLUSIONS Muscle strength is related to body composition and protein intake in MD patients. This, in combination with the high incidence of both malnutrition and sarcopenia, warrants individual nutrition assessment in MD patients.
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Affiliation(s)
- Heidi E E Zweers
- Department of Gastroenterology and Hepatology-Dietetics, Radboudumc, Nijmegen, the Netherlands.,Department of Nutrition and dietetics, HAN University of Applied Sciences, Nijmegen, the Netherlands
| | - Valentine Bordier
- Department of Nutrition and dietetics, HAN University of Applied Sciences, Nijmegen, the Netherlands.,Department of Health Science and Technology, ETHZ, Zurich, Switzerland
| | - Jeanne In 't Hulst
- Department of Gastroenterology and Hepatology-Dietetics, Radboudumc, Nijmegen, the Netherlands.,Department of Nutrition and dietetics, HAN University of Applied Sciences, Nijmegen, the Netherlands.,Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | | | - Geert J A Wanten
- Department of Gastroenterology and Hepatology, Radboudumc, Nijmegen, the Netherlands
| | - Susanne Leij-Halfwerk
- Department of Gastroenterology and Hepatology-Dietetics, Radboudumc, Nijmegen, the Netherlands.,Department of Nutrition and dietetics, HAN University of Applied Sciences, Nijmegen, the Netherlands
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Frank U, van den Engel-Hoek L, Nogueira D, Schindler A, Adams S, Curry M, Huckabee ML. International standardisation of the test of masticating and swallowing solids in children. J Oral Rehabil 2018; 46:161-169. [DOI: 10.1111/joor.12728] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/21/2018] [Accepted: 09/11/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Ulrike Frank
- Linguistic Department; Swallowing Research Lab; University of Potsdam; Potsdam Germany
| | - Lenie van den Engel-Hoek
- Department of Rehabilitation; Donders Institute for Brain, Cognition, and Behaviour; Radboud University Medical Center; Nijmegen The Netherlands
| | - Dália Nogueira
- Business Research Unit; Instituto Universitário de Lisboa (ISCTE-IUL); Lisboa Portugal
- Santa Casa da Misericórdia de Lisboa; Lisboa Portugal
| | - Antonio Schindler
- Phoniatric Unit; Department of Biomedical and Clinical Sciences L. Sacco; University of Milan; Milan Italy
| | - Sasha Adams
- Department of Communication Disorders; The Rose Centre for Stroke Recovery and Research; The University of Canterbury; Christchurch New Zealand
| | - Morgan Curry
- Department of Communication Disorders; The Rose Centre for Stroke Recovery and Research; The University of Canterbury; Christchurch New Zealand
| | - Maggie-Lee Huckabee
- Department of Communication Disorders; The Rose Centre for Stroke Recovery and Research; The University of Canterbury; Christchurch New Zealand
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10
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Foriel S, Beyrath J, Eidhof I, Rodenburg RJ, Schenck A, Smeitink JAM. Feeding difficulties, a key feature of the Drosophila NDUFS4 mitochondrial disease model. Dis Model Mech 2018; 11:dmm032482. [PMID: 29590638 PMCID: PMC5897729 DOI: 10.1242/dmm.032482] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/26/2018] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial diseases are associated with a wide variety of clinical symptoms and variable degrees of severity. Patients with such diseases generally have a poor prognosis and often an early fatal disease outcome. With an incidence of 1 in 5000 live births and no curative treatments available, relevant animal models to evaluate new therapeutic regimes for mitochondrial diseases are urgently needed. By knocking down ND-18, the unique Drosophila ortholog of NDUFS4, an accessory subunit of the NADH:ubiquinone oxidoreductase (Complex I), we developed and characterized several dNDUFS4 models that recapitulate key features of mitochondrial disease. Like in humans, the dNDUFS4 KD flies display severe feeding difficulties, an aspect of mitochondrial disorders that has so far been largely ignored in animal models. The impact of this finding, and an approach to overcome it, will be discussed in the context of interpreting disease model characterization and intervention studies.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Sarah Foriel
- Khondrion BV, Philips van Leydenlaan 15, 6525 EX, Nijmegen, The Netherlands
- Radboud Center for Mitochondrial Medicine (RCMM) at the Department of Pediatrics, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, The Netherlands
| | - Julien Beyrath
- Khondrion BV, Philips van Leydenlaan 15, 6525 EX, Nijmegen, The Netherlands
| | - Ilse Eidhof
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Richard J Rodenburg
- Radboud Center for Mitochondrial Medicine (RCMM) at the Department of Pediatrics, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, The Netherlands
| | - Annette Schenck
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Jan A M Smeitink
- Khondrion BV, Philips van Leydenlaan 15, 6525 EX, Nijmegen, The Netherlands
- Radboud Center for Mitochondrial Medicine (RCMM) at the Department of Pediatrics, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, The Netherlands
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Mancuso M, McFarland R, Klopstock T, Hirano M. International Workshop:: Outcome measures and clinical trial readiness in primary mitochondrial myopathies in children and adults. Consensus recommendations. 16-18 November 2016, Rome, Italy. Neuromuscul Disord 2017; 27:1126-1137. [PMID: 29074296 PMCID: PMC6094160 DOI: 10.1016/j.nmd.2017.08.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/24/2017] [Accepted: 08/30/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Michelangelo Mancuso
- Department of Experimental and Clinical Medicine, Neurological Institute, University of Pisa, Italy.
| | - Robert McFarland
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Department of Physiology and Functional Genomics NE1 3BZ, Newcastle University, Newcastle upon Tyne, UK
| | - Thomas Klopstock
- Friedrich-Baur-Institut an der Neurologischen Klinik und Poliklinik, LMU München, Ziemssenstr. 1a, 80336 München, Federal Republic of Germany
| | - Michio Hirano
- Department of Neurology, H. Houston Merritt Neuromuscular Research Center, Columbia University Medical Center, New York, NY, USA
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