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Sane H, Nivins S, Paranjape A, Gokulchandran N, Badhe S, Varghese R, Badhe P, Sharma A. Severity of muscle impairment and its progression assessed using musculoskeletal magnetic resonance imaging and diffusion tension imaging in 78 boys with Duchenne muscular dystrophy: a retrospective study. Pol J Radiol 2024; 89:e88-e105. [PMID: 38510548 PMCID: PMC10953512 DOI: 10.5114/pjr.2024.135718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/19/2024] [Indexed: 03/22/2024] Open
Abstract
Purpose Duchenne muscular dystrophy (DMD) is the most common and severe form of muscular dystrophy. Current diagnostic tests like genetic testing, needle electromyography, and muscle biopsy are either not easily available or invasive, and they are impractical for assessing disease progression and treatment outcomes. Therefore, there is a need for a non-invasive and accurate investigative modality for DMD. In recent years, musculoskeletal magnetic resonance imaging (MRI-MSK) along with fractional anisotropy (FA) and diffusion tensor imaging (DTI) have become major non-invasive tools. Material and methods T1-weighted MRI-MSK and FA measures of DTI of 78 DMD patients were retrospectively studied to identify the distinct pattern of muscle involvement and fatty infiltration as age and/or disease progresses. Correlation analysis was performed between MRI-MSK grade score vs. age, muscle strength, and Vignos scale. Spearman's rank correlation coefficient was used. Results As age increased, the MRI grade score and Vignos score increased. There was a statistically significant high positive correlation between MRI-MSK grade score and age, and low positive correlation with Vignos scores. With increasing age, the muscle strength on manual muscle testing (MMT) and FA value decreased. There was high negative correlation with muscle strength on MMT and low positive correlation between FA values and MMT score. Conclusions On T1-weighted MRI, a distinct pattern, extent, and distribution of lower limb muscle involvement can be seen. MRI-MSK grade score worsens with progressing age, reducing strength, and increasing functional impairment. FA alone may not be an accurate marker in assessing progression of DMD. MRI-MSK and other DTI measures should be further explored as diagnostic and prognostic tools for DMD.
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Affiliation(s)
- Hemangi Sane
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Samson Nivins
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Amruta Paranjape
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Nandini Gokulchandran
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Suvarna Badhe
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Ritu Varghese
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Prerna Badhe
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
| | - Alok Sharma
- NeuroGen Brain and Spine Institute, Stemasia Hospital and Research Centre, Navi Mumbai , Maharashtra, India
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Dubreil L, Damane N, Fleurisson R, Charrier M, Pichon J, Leroux I, Schleder C, Ledevin M, Larcher T, Jamme F, Puentes J, Rouger K. Specific and label-free endogenous signature of dystrophic muscle by Synchrotron deep ultraviolet radiation. Sci Rep 2023; 13:10808. [PMID: 37402811 PMCID: PMC10319894 DOI: 10.1038/s41598-023-37762-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/27/2023] [Indexed: 07/06/2023] Open
Abstract
Dystrophic muscle is characterized by necrosis/regeneration cycles, inflammation, and fibro-adipogenic development. Conventional histological stainings provide essential topographical data of this remodeling but may be limited to discriminate closely related pathophysiological contexts. They fail to mention microarchitecture changes linked to the nature and spatial distribution of tissue compartment components. We investigated whether label-free tissue autofluorescence revealed by Synchrotron deep ultraviolet (DUV) radiation could serve as an additional tool for monitoring dystrophic muscle remodeling. Using widefield microscopy with specific emission fluorescence filters and microspectroscopy defined by high spectral resolution, we analyzed samples from healthy dogs and two groups of dystrophic dogs: naïve (severely affected) and MuStem cell-transplanted (clinically stabilized) animals. Multivariate statistical analysis and machine learning approaches demonstrated that autofluorescence emitted at 420-480 nm by the Biceps femoris muscle effectively discriminates between healthy, dystrophic, and transplanted dog samples. Microspectroscopy showed that dystrophic dog muscle displays higher and lower autofluorescence due to collagen cross-linking and NADH respectively than that of healthy and transplanted dogs, defining biomarkers to evaluate the impact of cell transplantation. Our findings demonstrate that DUV radiation is a sensitive, label-free method to assess the histopathological status of dystrophic muscle using small amounts of tissue, with potential applications in regenerative medicine.
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Affiliation(s)
| | - Noreddine Damane
- Oniris, INRAE, PAnTher, 44300, Nantes, France
- IMT Atlantique, Lab-STICC, UMR CNRS 6285, 29238, Brest, France
| | | | | | | | | | | | | | | | - Frédéric Jamme
- Synchrotron SOLEIL, BP48, L'Orme Des Merisiers, 91120, Gif-Sur-Yvette, France
| | - John Puentes
- IMT Atlantique, Lab-STICC, UMR CNRS 6285, 29238, Brest, France
| | - Karl Rouger
- Oniris, INRAE, PAnTher, 44300, Nantes, France.
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3
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Lee J, Ko KR, Lee N, Kim S, Yu SS, Kim S, Lee J. Construction of Plasmid DNA Expressing Two Isoforms of Insulin-Like Growth Factor-1 and Its Effects on Skeletal Muscle Injury Models. Hum Gene Ther 2022; 33:1305-1314. [PMID: 35838121 PMCID: PMC9808797 DOI: 10.1089/hum.2022.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Insulin-like growth factor-1 (IGF-1) plays a significant role in the development of various organs, and several studies have suggested that IGF-1 isoforms, IGF-1 Ea and IGF-1 Ec, are expressed in skeletal muscle to control its growth. In this study, we designed a novel nucleotide sequence, IGF-1-X10, consisting of IGF-1 exons and introns to simultaneously express both IGF-1 Ea and IGF-1 Ec. When transfected into human cells, the expression of both isoforms was observed at the transcript and protein levels. In an animal study, intramuscular injection of plasmid DNA comprising IGF-1-X10 induced the expression of IGF-1 Ea and IGF-1 Ec, leading to the production of functional IGF-1 protein. Finally, the efficacy of this plasmid DNA was tested in a cardiotoxin (CTX)-mediated muscle injury model and age-related muscle atrophy model. We found that IGF-1-X10 increased the muscle mass and controlled several key factors involved in the muscle atrophy program in both models. Taken together, these data suggest that IGF-1-X10 may be utilized in the form of gene therapy for the treatment of various muscle diseases related to IGF-1 deficiency.
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Affiliation(s)
- Jaeman Lee
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Kyeong-Ryang Ko
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Nayeon Lee
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sojin Kim
- R&D Center, Helixmith Co., Ltd., Gangseo-gu, Republic of Korea
| | - Seung-Shin Yu
- R&D Center, Helixmith Co., Ltd., Gangseo-gu, Republic of Korea
| | - Sunyoung Kim
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Junghun Lee
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea,Correspondence: Dr. Junghun Lee, R&D Center, Helixmith Co., Ltd., Gangseo-gu, Republic of Korea.
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Babcock LW, Hanna AD, Agha NH, Hamilton SL. MyoSight-semi-automated image analysis of skeletal muscle cross sections. Skelet Muscle 2020; 10:33. [PMID: 33198807 PMCID: PMC7667765 DOI: 10.1186/s13395-020-00250-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/23/2020] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Manual analysis of cross-sectional area, fiber-type distribution, and total and centralized nuclei in skeletal muscle cross sections is tedious and time consuming, necessitating an accurate, automated method of analysis. While several excellent programs are available, our analyses of skeletal muscle disease models suggest the need for additional features and flexibility to adequately describe disease pathology. We introduce a new semi-automated analysis program, MyoSight, which is designed to facilitate image analysis of skeletal muscle cross sections and provide additional flexibility in the analyses. RESULTS We describe staining and imaging methods that generate high-quality images of immunofluorescent-labelled cross sections from mouse skeletal muscle. Using these methods, we can analyze up to 5 different fluorophores in a single image, allowing simultaneous analyses of perinuclei, central nuclei, fiber size, and fiber-type distribution. MyoSight displays high reproducibility among users, and the data generated are in close agreement with data obtained from manual analyses of cross-sectional area (CSA), fiber number, fiber-type distribution, and number and localization of myonuclei. Furthermore, MyoSight clearly delineates changes in these parameters in muscle sections from a mouse model of Duchenne muscular dystrophy (mdx). CONCLUSIONS MyoSight is a new program based on an algorithm that can be optimized by the user to obtain highly accurate fiber size, fiber-type identification, and perinuclei and central nuclei per fiber measurements. MyoSight combines features available separately in other programs, is user friendly, and provides visual outputs that allow the user to confirm the accuracy of the analyses and correct any inaccuracies. We present MyoSight as a new program to facilitate the analyses of fiber type and CSA changes arising from injury, disease, exercise, and therapeutic interventions.
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Affiliation(s)
- Lyle W Babcock
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Amy D Hanna
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Nadia H Agha
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Susan L Hamilton
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
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Lawal TA, Todd JJ, Witherspoon JW, Bönnemann CG, Dowling JJ, Hamilton SL, Meilleur KG, Dirksen RT. Ryanodine receptor 1-related disorders: an historical perspective and proposal for a unified nomenclature. Skelet Muscle 2020; 10:32. [PMID: 33190635 PMCID: PMC7667763 DOI: 10.1186/s13395-020-00243-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022] Open
Abstract
The RYR1 gene, which encodes the sarcoplasmic reticulum calcium release channel or type 1 ryanodine receptor (RyR1) of skeletal muscle, was sequenced in 1988 and RYR1 variations that impair calcium homeostasis and increase susceptibility to malignant hyperthermia were first identified in 1991. Since then, RYR1-related myopathies (RYR1-RM) have been described as rare, histopathologically and clinically heterogeneous, and slowly progressive neuromuscular disorders. RYR1 variants can lead to dysfunctional RyR1-mediated calcium release, malignant hyperthermia susceptibility, elevated oxidative stress, deleterious post-translational modifications, and decreased RyR1 expression. RYR1-RM-affected individuals can present with delayed motor milestones, contractures, scoliosis, ophthalmoplegia, and respiratory insufficiency. Historically, RYR1-RM-affected individuals were diagnosed based on morphologic features observed in muscle biopsies including central cores, cores and rods, central nuclei, fiber type disproportion, and multi-minicores. However, these histopathologic features are not always specific to RYR1-RM and often change over time. As additional phenotypes were associated with RYR1 variations (including King-Denborough syndrome, exercise-induced rhabdomyolysis, lethal multiple pterygium syndrome, adult-onset distal myopathy, atypical periodic paralysis with or without myalgia, mild calf-predominant myopathy, and dusty core disease) the overlap among diagnostic categories is ever increasing. With the continuing emergence of new clinical subtypes along the RYR1 disease spectrum and reports of adult-onset phenotypes, nuanced nomenclatures have been reported (RYR1- [related, related congenital, congenital] myopathies). In this narrative review, we provide historical highlights of RYR1 research, accounts of the main diagnostic disease subtypes and propose RYR1-related disorders (RYR1-RD) as a unified nomenclature to describe this complex and evolving disease spectrum.
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Affiliation(s)
- Tokunbor A Lawal
- Tissue Injury Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA.
| | - Joshua J Todd
- Tissue Injury Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | - Jessica W Witherspoon
- Tissue Injury Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | - Carsten G Bönnemann
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - James J Dowling
- Departments of Paediatrics and Molecular Genetics, Hospital for Sick Children and University of Toronto, Toronto, Canada
| | - Susan L Hamilton
- Molecular Physiology & Biophysics, Baylor College of Medicine, Houston, TX, USA
| | - Katherine G Meilleur
- Tissue Injury Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | - Robert T Dirksen
- Department of Pharmacology and Physiology, University of Rochester Medical Center, Rochester, NY, USA
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Reyes-Fernandez PC, Periou B, Decrouy X, Relaix F, Authier FJ. Automated image-analysis method for the quantification of fiber morphometry and fiber type population in human skeletal muscle. Skelet Muscle 2019; 9:15. [PMID: 31133066 PMCID: PMC6537183 DOI: 10.1186/s13395-019-0200-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 05/02/2019] [Indexed: 12/02/2022] Open
Abstract
Background The quantitative analysis of muscle histomorphometry has been growing in importance in both research and clinical settings. Accurate and stringent assessment of myofibers’ changes in size and number, and alterations in the proportion of oxidative (type I) and glycolytic (type II) fibers is essential for the appropriate study of aging and pathological muscle, as well as for diagnosis and follow-up of muscle diseases. Manual and semi-automated methods to assess muscle morphometry in sections are time-consuming, limited to a small field of analysis, and susceptible to bias, while most automated methods have been only tested in rodent muscle. Methods We developed a new macro script for Fiji-ImageJ to automatically assess human fiber morphometry in digital images of the entire muscle. We tested the functionality of our method in deltoid muscle biopsies from a heterogeneous population of subjects with histologically normal muscle (male, female, old, young, lean, obese) and patients with dermatomyositis, necrotizing autoimmune myopathy, and anti-synthetase syndrome myopathy. Results Our macro is fully automated, requires no user intervention, and demonstrated improved fiber segmentation by running a series of image pre-processing steps before the analysis. Likewise, our tool showed high accuracy, as compared with manual methods, for identifying the total number of fibers (r = 0.97, p < 0.001), fiber I and fiber II proportion (r = 0.92, p < 0.001), and minor diameter (r = 0.86, p < 0.001) while conducting analysis in ~ 5 min/sample. The performance of the macro analysis was maintained in pectoral and deltoid samples from subjects of different age, gender, body weight, and muscle status. The output of the analyses includes excel files with the quantification of fibers’ morphometry and color-coded maps based on the fiber’s size, which proved to be an advantageous feature for the fast and easy visual identification of location-specific atrophy and a potential tool for medical diagnosis. Conclusion Our macro is reliable and suitable for the study of human skeletal muscle for research and for diagnosis in clinical settings providing reproducible and consistent analysis when the time is of the utmost importance. Electronic supplementary material The online version of this article (10.1186/s13395-019-0200-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Perla C Reyes-Fernandez
- Inserm, IMRB U955-E10, 94000, Créteil, France.,Faculté de Médecine, Université Paris Est Créteil, 94000, Créteil, France
| | - Baptiste Periou
- Inserm, IMRB U955-E10, 94000, Créteil, France.,Faculté de Médecine, Université Paris Est Créteil, 94000, Créteil, France.,APHP, Hôpitaux Universitaires Henri Mondor, Centre de Référence des Maladies Neuromusculaires Nord/Est/Ile-de-France, 94000, Créteil, France
| | - Xavier Decrouy
- Faculté de Médecine, Université Paris Est Créteil, 94000, Créteil, France.,Inserm, IMRB U955, Plateforme d'Imagerie, 94000, Créteil, France
| | - Fréderic Relaix
- Inserm, IMRB U955-E10, 94000, Créteil, France.,Faculté de Médecine, Université Paris Est Créteil, 94000, Créteil, France.,APHP, Hôpitaux Universitaires Henri Mondor, Centre de Référence des Maladies Neuromusculaires Nord/Est/Ile-de-France, 94000, Créteil, France.,Etablissement Français du Sang, 94017, Créteil, France
| | - François Jérôme Authier
- Inserm, IMRB U955-E10, 94000, Créteil, France. .,Faculté de Médecine, Université Paris Est Créteil, 94000, Créteil, France. .,APHP, Hôpitaux Universitaires Henri Mondor, Centre de Référence des Maladies Neuromusculaires Nord/Est/Ile-de-France, 94000, Créteil, France.
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Tenny SO, Schmidt KP, Follett KA. Referring Service Effect on Muscle Biopsy Diagnosis and Management in Myopathy. Cureus 2018; 10:e2800. [PMID: 30116679 PMCID: PMC6089701 DOI: 10.7759/cureus.2800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Introduction Requests for muscle biopsy for evaluation of myopathy originate from a variety of different specialties. It is unknown whether the specialty of the referring service affects the likelihood of diagnostic biopsy or the therapeutic usefulness of a biopsy. Methods We reviewed 106 consecutive muscle biopsies requested by healthcare providers in neurology, rheumatology, family medicine, oncology, and gastroenterology. We tested for an association between referring service and whether the biopsy yielded a definitive pathology result or provided therapeutically useful results. Results Half of the biopsies (49%) returned definitive pathology and 88% of the biopsies provided information that contributed to therapeutic decisions. The diagnostic yield for muscle biopsies referred by different services was not statistically significant (p-value 0.1344) nor was the therapeutic yield statistically significant for muscle biopsies referred by different services (p-value 0.5525). Discussion The specialty of the service that requests a muscle biopsy does not influence the likelihood of obtaining a definitive pathological diagnosis or therapeutically useful information. Other factors may be more important in determining the likelihood of obtaining a clinically useful biopsy result.
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Affiliation(s)
- Steven O Tenny
- Neurosurgery, University of Nebraska Medical Center, Omaha, USA
| | - Kyle P Schmidt
- Neurosurgery, University of Nebraska Medical Center, Omaha, USA
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