1
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Delaney R, O'Halloran KD. Respiratory performance in Duchenne muscular dystrophy: Clinical manifestations and lessons from animal models. Exp Physiol 2024. [PMID: 39023735 DOI: 10.1113/ep091967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/17/2024] [Indexed: 07/20/2024]
Abstract
Duchenne muscular dystrophy (DMD) is a fatal genetic neuromuscular disease. Lack of dystrophin in skeletal muscles leads to intrinsic weakness, injury, subsequent degeneration and fibrosis, decreasing contractile function. Dystropathology eventually presents in all inspiratory and expiratory muscles of breathing, severely curtailing their critical function. In people with DMD, premature death is caused by respiratory or cardiac failure. There is an urgent need to develop therapies that improve quality of life and extend life expectancy in DMD. Surprisingly, there is a dearth of information on respiratory control in animal models of DMD, and respiratory outcome measures are often limited or absent in clinical trials. Characterization of respiratory performance in murine and canine models has revealed extensive remodelling of the diaphragm, the major muscle of inspiration. However, significant compensation by extradiaphragmatic muscles of breathing is evident in early disease, contributing to preservation of peak respiratory system performance. Loss of compensation afforded by accessory muscles in advanced disease is ultimately associated with compromised respiratory performance. A new and potentially more translatable murine model of DMD, the D2.mdx mouse, has recently been developed. Respiratory performance in D2.mdx mice is yet to be characterized fully. However, based on histopathological features, D2.mdx mice might serve as useful preclinical models, facilitating the testing of new therapeutics that rescue respiratory function. This review summarizes the pathophysiological mechanisms associated with DMD both in humans and in animal models, with a focus on breathing. We consider the translational value of each model to human DMD and highlight the urgent need for comprehensive characterization of breathing in representative preclinical models to better inform human trials.
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Affiliation(s)
- Rebecca Delaney
- Department of Physiology, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, University College Cork, Cork, Ireland
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2
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Wen Y, Yang L, Shen G, Dai S, Wang J, Wang X. A novel splicing mutation identified in a DMD patient: a case report. Front Pediatr 2023; 11:1261318. [PMID: 38054185 PMCID: PMC10694253 DOI: 10.3389/fped.2023.1261318] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/31/2023] [Indexed: 12/07/2023] Open
Abstract
Background Duchenne muscular dystrophy (DMD, ORPHA:98896) is a lethal X-linked recessive disease that manifests as progressive muscular weakness and wasting. Mutations in the dystrophy gene (DMD) are the main cause of Duchenne muscular dystrophy. Case presentation This study aims to determine novel mutations of DMD and help preimplantation genetic diagnosis (PGD) for family planning. Here present a 4-year-old Chinses boy with DMD, whole-exome sequencing (WES) was performed to identify the molecular basis of the disease. It was confirmed that the boy carried a novel hemizygous mutation of NC_000023.11(NM_004006.3): c.5912_5922 + 19delinsATGTATG in DMD which inherited from his mother. This led to the aberrant splicing of DMD which demonstrated by a minigene splicing assay and further resulted in the impairment of the dystrophy protein. Conclusions Our study discovered a novel splicing mutation of DMD in a DMD patient, which expands the variant spectrum of this gene and provide precise genetic diagnosis of DMD for timely therapy. Meanwhile, this finding will supply valuable information for preimplantation genetic diagnosis.
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Affiliation(s)
- Yuting Wen
- Department of Obstetrics and Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Luo Yang
- Department of Urology & Pelvic Surgery, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Gan Shen
- Department of Obstetrics and Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Siyu Dai
- Department of Obstetrics and Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jing Wang
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Xiang Wang
- Department of Obstetrics and Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
- NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, China
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3
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Graustein A, Carmona H, Benditt JO. Noninvasive respiratory assistance as aid for respiratory care in neuromuscular disorders. FRONTIERS IN REHABILITATION SCIENCES 2023; 4:1152043. [PMID: 37275400 PMCID: PMC10233137 DOI: 10.3389/fresc.2023.1152043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/02/2023] [Indexed: 06/07/2023]
Abstract
Chronic respiratory failure is a common complication of neuromuscular disease. The use of noninvasive ventilation and mechanically assisted cough can reduce symptoms of hypoventilation, slow lung function decline, improve sleep quality, and in some cases prolong survival in patients with neuromuscular disease. In this article, we review indications for the initiation of noninvasive ventilation and mechanically assisted cough as well as provide recommendations for settings and titration. We discuss the evidence supporting the use of noninvasive ventilation as an adjunct to rehabilitation in patients with neuromuscular disease. Lastly, we review the ethical considerations that are relevant to decisions regarding initiation and cessation of noninvasive ventilation. While noninvasive ventilation and mechanically assisted cough have become standards of care in many forms of neuromuscular disease, most current recommendations are based on expert opinion rather than much-needed data from prospective clinical trials and we emphasize topics requiring future research.
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Affiliation(s)
- Andrew Graustein
- Division of Pulmonary, Critical Care and Sleep Medicine, United States Department of Veterans Affairs, VA Puget Sound Health Care System, Veterans Health Administration, Seattle, WA, United States
| | - Hugo Carmona
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, School of Medicine, University of Washington, Seattle, WA, United States
| | - Joshua O. Benditt
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, School of Medicine, University of Washington, Seattle, WA, United States
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4
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Boehm AK, Hillebrandt KH, Dziodzio T, Krenzien F, Neudecker J, Spuler S, Pratschke J, Sauer IM, Andreas MN. Tissue engineering for the diaphragm and its various therapeutic possibilities – A Systematic Review. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202100247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Agnes K Boehm
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
| | - Karl H Hillebrandt
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin Charitéplatz 1 Berlin 10117 Germany
| | - Tomasz Dziodzio
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin Charitéplatz 1 Berlin 10117 Germany
| | - Felix Krenzien
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin Charitéplatz 1 Berlin 10117 Germany
| | - Jens Neudecker
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
| | - Simone Spuler
- Muscle Research Unit Experimental and Clinical Research Center Charité Universitätsmedizin Berlin and Max‐Delbrück‐Centrum für Molekulare Medizin in der Helmholtz‐Gemeinschaft Lindenberger Weg 80 Berlin 13125 Germany
| | - Johann Pratschke
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG German Research Foundation) under Germany's Excellence Strategy Berlin EXC 2025 Germany
| | - Igor M Sauer
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG German Research Foundation) under Germany's Excellence Strategy Berlin EXC 2025 Germany
| | - Marco N Andreas
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
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Veldhoen ES, Vercoelen F, Ros L, Verweij-van den Oudenrijn LP, Wösten-van Asperen RM, Hulzebos EH, Bartels B, Gaytant MA, van der Ent K, Ludo van der Pol W. Short-term effect of air stacking and mechanical insufflation-exsufflation on lung function in patients with neuromuscular diseases. Chron Respir Dis 2022; 19:14799731221094619. [PMID: 35442817 PMCID: PMC9024083 DOI: 10.1177/14799731221094619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Air stacking (AS) and mechanical insufflation-exsufflation (MI-E) aim to increase cough efficacy by augmenting inspiratory lung volumes in patients with neuromuscular diseases (NMDs). We studied the short-term effect of AS and MI-E on lung function. We prospectively included NMD patients familiar with daily AS or MI-E use. Studied outcomes were forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and peak expiratory flow (PEF) prior to, immediately after, and up to 2 h after treatment. Paired sample T-test and Wilcoxon signed-rank test was used. Sixty-seven patients participated. We observed increased FVC and FEV1 immediately after AS with a mean difference of respectively 0.090 L (95% CI 0.045; 0.135, p < .001) and 0.073 L (95% CI 0.017; 0.128, p = .012). Increased FVC immediately after MI-E (mean difference 0.059 L (95% CI 0.010; 0.109, p = .021) persisted 1 hour (mean difference 0.079 L (95% CI 0.034; 0.125, p = .003). The effect of treatment was more pronounced in patients diagnosed with Spinal Muscular Atrophy, compared to patients with Duchenne muscular dystrophy. AS and MI-E improved FVC immediately after treatment, which persisted 1 h after MI-E. There is insufficient evidence that short-lasting increases in FVC would explain the possible beneficial effect of AS and MI-E.
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Affiliation(s)
- Esther S Veldhoen
- Pediatric Intensive Care Unit and Center of Home Mechanical Ventilation, Wilhelmina Children's Hospital
- 89098University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Femke Vercoelen
- Pediatric Intensive Care Unit and Center of Home Mechanical Ventilation, Wilhelmina Children's Hospital
- 89098University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Leandra Ros
- Department of Neurology, Brain Centre Rudolf Magnus, 89098University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Laura P Verweij-van den Oudenrijn
- Pediatric Intensive Care Unit and Center of Home Mechanical Ventilation, Wilhelmina Children's Hospital
- 89098University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Roelie M Wösten-van Asperen
- Pediatric Intensive Care Unit, Wilhelmina Children's Hospital, 89098University Medical Center Utrecht, Utrecht, The Netherlands
| | - Erik Hj Hulzebos
- Child Development and Exercise Center, Wilhelmina Children's Hospital, 89098University Medical Center, Utrecht University, Utrecht, The Netherlands
| | - Bart Bartels
- Child Development and Exercise Center, Wilhelmina Children's Hospital, 89098University Medical Center, Utrecht University, Utrecht, The Netherlands
| | - Michael A Gaytant
- Center of Home Mechanical Ventilation, Department of Pulmonology, 89098University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Kors van der Ent
- Department of Pediatric Pulmonology, Wilhelmina Children's Hospital, 89098University Medical Center, Utrecht University, Utrecht, The Netherlands
| | - W Ludo van der Pol
- Department of Neurology, Brain Centre Rudolf Magnus, 89098University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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Carannante N, Annunziata A, Coppola A, Simioli F, Marotta A, Bernardo M, Piscitelli E, Imitazione P, Fiorentino G. Diagnosis and treatment of pneumonia, a common cause of respiratory failure in patients with neuromuscular disorders. ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2021; 40:124-131. [PMID: 34632294 PMCID: PMC8489170 DOI: 10.36185/2532-1900-053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 09/13/2021] [Indexed: 11/12/2022]
Abstract
Patients with neuromuscular diseases, during their illness are more susceptible to respiratory infections due to predisposing factors. Ineffective cough and the presence of atelectasis and hypoventilation, dysphagia and drooling can represent risk factors for the development of respiratory infection and fatal respiratory failure. Infections of respiratory tract with acute respiratory failure are the most common reason for hospitalizations, and pneumonia is among the leading causes of morbidity and mortality worldwide. The setting in which pneumonia is acquired heavily influences diagnostic and therapeutic choices. We will focus on aetiopathogenesis, diagnosis and treatment of pneumonia in these subjects, particularly considering the disease severity, rates of antibiotic resistance and the possible complications. In this case consultations with specialized physicians are strongly recommended.
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Affiliation(s)
| | - Anna Annunziata
- Unità of Fisiopatologia e Riabilitazione Respiratoria AO Ospedali dei Colli, Naples, Italy
| | - Antonietta Coppola
- Unità of Fisiopatologia e Riabilitazione Respiratoria AO Ospedali dei Colli, Naples, Italy
| | - Francesca Simioli
- Unità of Fisiopatologia e Riabilitazione Respiratoria AO Ospedali dei Colli, Naples, Italy
| | - Antonella Marotta
- Unità of Fisiopatologia e Riabilitazione Respiratoria AO Ospedali dei Colli, Naples, Italy
| | - Mariano Bernardo
- Unit of Microbiology and Virology AO Ospedali dei Colli, Naples, Italy
| | | | - Pasquale Imitazione
- Unità of Fisiopatologia e Riabilitazione Respiratoria AO Ospedali dei Colli, Naples, Italy
| | - Giuseppe Fiorentino
- Unità of Fisiopatologia e Riabilitazione Respiratoria AO Ospedali dei Colli, Naples, Italy
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7
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Rao F, Garuti G, Vitacca M, Banfi P, Racca F, Cutrera R, Pavone M, Pedemonte M, Schisano M, Pedroni S, Casiraghi J, Vianello A, Sansone VA. Management of respiratory complications and rehabilitation in individuals with muscular dystrophies: 1st Consensus Conference report from UILDM - Italian Muscular Dystrophy Association (Milan, January 25-26, 2019). ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2021; 40:8-42. [PMID: 33870094 PMCID: PMC8033426 DOI: 10.36185/2532-1900-045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 12/03/2022]
Abstract
Respiratory complications are common in the patient with muscular dystrophy. The periodic clinical and instrumental respiratory evaluation is extremely important. Despite the presence in the literature of updated guidelines, patient associations often report lack of knowledge of these pathologies, particularly in peripheral hospitals. The purpose of this work, inspired by the Italian Muscular Dystrophy Association (UILDM) is to improve management of respiratory problems necessary for the management of these patients complex. To this end, the main items that the specialist can meet in the follow-up of these pathologies have been analyzed and discussed, among which the respiratory basal evaluation, the criteria of adaptation to non-invasive ventilation, management of bronchial secretions, situations of respiratory emergency, indications for tracheostomy and the subject of advance directives of treatment (DAT).
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Affiliation(s)
- Fabrizio Rao
- Respiratory Unit, NEuroMuscular OmniCentre (NeMO), Serena Onlus Foundation, Niguarda Hospital, Milan, Italy
| | - Giancarlo Garuti
- Pneumology Unit, Santa Maria Bianca Hospital, AUSL Modena, Italy
| | | | - Paolo Banfi
- IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Fabrizio Racca
- Department of Anaesthesia and Intensive Care, Division of Paediatric Intensive Care Unit, Alessandria General Hospital, Alessandria, Italy
| | - Renato Cutrera
- Pulmonology Unit, Academic Paediatric Department, Bambino Gesù Children Hospital, IRCCS, Rome, Italy
| | - Martino Pavone
- Pediatric Pulmonology & Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Department of Pediatrics, Bambino Gesù Children's Research Hospital, Rome, Italy
| | - Marina Pedemonte
- Pediatric Neurology and Muscle Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Matteo Schisano
- Respiratory Medicine Unit, AOU "Policlinico-San Marco", Catania, Italy
| | - Stefania Pedroni
- Neurorehabilitation Unit, the NEMO Clinical Center in Milan, University of Milan, Italy
| | - Jacopo Casiraghi
- Neurorehabilitation Unit, the NEMO Clinical Center in Milan, University of Milan, Italy
| | - Andrea Vianello
- Respiratory Pathophysiology Division, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Italy
| | - Valeria A Sansone
- Neurorehabilitation Unit, the NEMO Clinical Center in Milan, University of Milan, Italy
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8
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Almeida MMFD, Teodoro RDJ, Chiavegato LD. Maneuvers and strategies in respiratory physical therapy: time to revisit the evidence. ACTA ACUST UNITED AC 2020; 46:e20200443. [PMID: 32901692 PMCID: PMC7567630 DOI: 10.36416/1806-3756/e20200443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Marcella Musumeci Fagundes de Almeida
- . Disciplina de Pneumologia, Universidade Federal de São Paulo - UNIFESP - São Paulo (SP) Brasil.,. Serviço de Fisioterapia, Hospital São Paulo, Disciplina de Pneumologia, Universidade Federal de São Paulo - UNIFESP - São Paulo (SP) Brasil.,. Hospital Vila Nova Star, São Paulo (SP) Brasil
| | - Renata de Jesus Teodoro
- . Disciplina de Pneumologia, Universidade Federal de São Paulo - UNIFESP - São Paulo (SP) Brasil.,. Universidade Nove de Julho, São Paulo (SP) Brasil.,. Liga da Fisiointensiva, São Paulo (SP) Brasil.,. Clinica Play Edu, São Paulo (SP) Brasil
| | - Luciana Dias Chiavegato
- . Disciplina de Pneumologia, Universidade Federal de São Paulo - UNIFESP - São Paulo (SP) Brasil.,. Serviço de Fisioterapia, Hospital São Paulo, Disciplina de Pneumologia, Universidade Federal de São Paulo - UNIFESP - São Paulo (SP) Brasil
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