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Articoli di riviste sul tema "Muscular dystrophy"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Straub, Volker, Jill A. Rafael, Jeffrey S. Chamberlain, and Kevin P. Campbell. "Animal Models for Muscular Dystrophy Show Different Patterns of Sarcolemmal Disruption." Journal of Cell Biology 139, no. 2 (1997): 375–85. http://dx.doi.org/10.1083/jcb.139.2.375.

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Abstract (sommario):

Genetic defects in a number of components of the dystrophin–glycoprotein complex (DGC) lead to distinct forms of muscular dystrophy. However, little is known about how alterations in the DGC are manifested in the pathophysiology present in dystrophic muscle tissue. One hypothesis is that the DGC protects the sarcolemma from contraction-induced damage. Using tracer molecules, we compared sarcolemmal integrity in animal models for muscular dystrophy and in muscular dystrophy patient samples. Evans blue, a low molecular weight diazo dye, does not cross into skeletal muscle fibers in normal mice.

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2

Ibrahim Sory, P., T. Sidi, L. Guida, et al. "Dystrophie Musculaire de Duchenne: Aspects cliniques, biologiques et évolutifs à propos de cinq cas dans le service de Rhumatologie au CHU du Point G." Rhumatologie Africaine Francophone 6, no. 2 (2024): 18–23. http://dx.doi.org/10.62455/raf.v6i2.53.

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Résumé  La dystrophie musculaire de Duchenne (DMD) due à la non expression de la dystrophine est liée au chromosome X. Décrite au 19e siècle, est la plus courante dystrophie musculaire de l’enfant [1, 2]. L’incidence est estimée à 30 cas pour 100 000 naissances [1, 2]. But- étudier les caractères cliniques, biologiques et évolutifs de la dystrophie musculaire de Duchenne. Patients et Méthodes : Il s’est agi d’une étude rétrospective portant sur 5 dossiers de DMD, colligés en 7 ans. Résultats Nous rapportons cinq dossiers de garçons colligés entre 2005 et 201

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3

Steen, Michelle S., Marvin E. Adams, Yan Tesch, and Stanley C. Froehner. "Amelioration of Muscular Dystrophy by Transgenic Expression of Niemann-Pick C1." Molecular Biology of the Cell 20, no. 1 (2009): 146–52. http://dx.doi.org/10.1091/mbc.e08-08-0811.

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Duchenne muscular dystrophy (DMD) and other types of muscular dystrophies are caused by the loss or alteration of different members of the dystrophin protein complex. Understanding the molecular mechanisms by which dystrophin-associated protein abnormalities contribute to the onset of muscular dystrophy may identify new therapeutic approaches to these human disorders. By examining gene expression alterations in mouse skeletal muscle lacking α-dystrobrevin (Dtna−/−), we identified a highly significant reduction of the cholesterol trafficking protein, Niemann-Pick C1 (NPC1). Mutations in NPC1 ca

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4

Spiro, Alfred J. "Muscular Dystrophy." Pediatrics In Review 16, no. 11 (1995): 437. http://dx.doi.org/10.1542/pir.16.11.437.

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Abstract (sommario):

Several varieties of muscular dystrophy can be distinguished on clinical, genetic, morphologic, and physiologic grounds. The classification includes Duchenne and Becker muscular dystrophies, both X-linked disorders; facioscapulohumeral muscular dystrophy, which is autosomal dominant; and limb-girdle muscular dystrophy, generally autosomal recessive. Duchenne muscular dystrophy (DMD), which occurs in approximately 1 in 3500 live male births, has no recognizable signs or symptoms at birth. However, markedly elevated serum creatine kinase always is demonstrable, even at birth. A molecular diagnos

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5

Sitzia, Clementina, Andrea Farini, Federica Colleoni, et al. "Improvement of Endurance of DMD Animal Model Using Natural Polyphenols." BioMed Research International 2015 (2015): 1–17. http://dx.doi.org/10.1155/2015/680615.

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Duchenne muscular dystrophy (DMD), the most common form of muscular dystrophy, is characterized by muscular wasting caused by dystrophin deficiency that ultimately ends in force reduction and premature death. In addition to primary genetic defect, several mechanisms contribute to DMD pathogenesis. Recently, antioxidant supplementation was shown to be effective in the treatment of multiple diseases including muscular dystrophy. Different mechanisms were hypothesized such as reduced hydroxyl radicals, nuclear factor-κB deactivation, and NO protection from inactivation. Following these promising

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6

Teramoto, Naomi, Hidetoshi Sugihara, Keitaro Yamanouchi, et al. "Pathological evaluation of rats carrying in-frame mutations in the dystrophin gene: a new model of Becker muscular dystrophy." Disease Models & Mechanisms 13, no. 9 (2020): dmm044701. http://dx.doi.org/10.1242/dmm.044701.

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ABSTRACTDystrophin, encoded by the DMD gene on the X chromosome, stabilizes the sarcolemma by linking the actin cytoskeleton with the dystrophin-glycoprotein complex (DGC). In-frame mutations in DMD cause a milder form of X-linked muscular dystrophy, called Becker muscular dystrophy (BMD), characterized by the reduced expression of truncated dystrophin. So far, no animal model with in-frame mutations in Dmd has been established. As a result, the effect of in-frame mutations on the dystrophin expression profile and disease progression of BMD remains unclear. In this study, we established a nove

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7

Bergman, Robert L., Karen D. Inzana, William E. Monroe, et al. "Dystrophin-Deficient Muscular Dystrophy in a Labrador Retriever." Journal of the American Animal Hospital Association 38, no. 3 (2002): 255–61. http://dx.doi.org/10.5326/0380255.

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Sex-linked muscular dystrophy associated with dystrophin deficiency has been reported in several breeds of dogs and is best characterized in the golden retriever. In this case report, a young, male Labrador retriever with dystrophin-deficient muscular dystrophy is presented. Clinical signs included generalized weakness, lingual hypertrophy, and dysphagia. Electromyographic abnormalities including complex repetitive discharges were present. Serum creatine kinase concentration was dramatically elevated. Histopathological changes within a muscle biopsy specimen confirmed a dystrophic myopathy, an

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8

Gambino, Anya N., Pamela J. Mouser, G. Diane Shelton, and Nena J. Winand. "Emergent Presentation of a Cat with Dystrophin-Deficient Muscular Dystrophy." Journal of the American Animal Hospital Association 50, no. 2 (2014): 130–35. http://dx.doi.org/10.5326/jaaha-ms-5973.

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This report describes a case of feline dystrophin-deficient muscular dystrophy (DDMD) with an atypical clinical presentation. A novel gene mutation is reported to be responsible for dystrophin-deficient hypertrophic muscular dystrophy. In an emergency setting, clinicians should be aware of muscular dystrophy in young cats and the importance of elevated creatine kinase (CK) activity. Muscular dystrophy is rare but can present both a diagnostic and therapeutic challenge in an emergency setting. Patients with muscular dystrophy have a progressive disease with no specific treatment and have an inc

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9

Baraibar-Churio, Arantxa, Míriam Bobadilla, Florencio J. D. Machado, et al. "Deficiency of MMP-10 Aggravates the Diseased Phenotype of Aged Dystrophic Mice." Life 11, no. 12 (2021): 1398. http://dx.doi.org/10.3390/life11121398.

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Matrix metalloproteinases (MMPs) have been implicated in the progression of muscular dystrophy, and recent studies have reported the role of MMP-10 in skeletal muscle pathology of young dystrophic mice. Nevertheless, its involvement in dystrophin-deficient hearts remains unexplored. Here, we aimed to investigate the involvement of MMP-10 in the progression of severe muscular dystrophy and to characterize MMP-10 loss in skeletal and cardiac muscles of aged dystrophic mice. We examined the histopathological effect of MMP-10 ablation in aged mdx mice, both in the hind limb muscles and heart tissu

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10

Dosani, Minaj, and Harish Kumar Singhal. "An Ayurvedic Approach in Muscular Dystrophy in Children." International Journal of Health Sciences and Research 14, no. 3 (2024): 105–16. http://dx.doi.org/10.52403/ijhsr.20240318.

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Duchenne muscular dystrophy stands out as the most prevalent and severe form of childhood muscular dystrophy, impacting approximately one in every 5200 male births. It results from dystrophin deficiency, a condition inherited through X-linked recessive traits due to a missing or altered dystrophin protein encoded by the DMD gene located on chromosome Xp21. Unfortunately, this myopathy is currently incurable, often leading to mortality between the ages of 20-25. The primary pharmaceutical intervention for Duchenne muscular dystrophy involves corticosteroids, though they come with long-term nega

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11

Bandikatla, Sarada. "Muscular Dystrophy – Review." International Journal of Psychosocial Rehabilitation 24, no. 4 (2020): 6540–48. http://dx.doi.org/10.37200/ijpr/v24i4/pr2020464.

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12

Spaulding, HR, C. Ballmann, JC Quindry, MB Hudson, and JT Selsby. "Autophagy in the heart is enhanced and independent of disease progression in mus musculus dystrophinopathy models." JRSM Cardiovascular Disease 8 (January 2019): 204800401987958. http://dx.doi.org/10.1177/2048004019879581.

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Background Duchenne muscular dystrophy is a muscle wasting disease caused by dystrophin gene mutations resulting in dysfunctional dystrophin protein. Autophagy, a proteolytic process, is impaired in dystrophic skeletal muscle though little is known about the effect of dystrophin deficiency on autophagy in cardiac muscle. We hypothesized that with disease progression autophagy would become increasingly dysfunctional based upon indirect autophagic markers. Methods Markers of autophagy were measured by western blot in 7-week-old and 17-month-old control (C57) and dystrophic (mdx) hearts. Results

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13

Srivastava, Niraj Kumar, Somnath Mukherjee, and Vijay Nath Mishra. "Metabolic Disturbance in Patients with Muscular Dystrophy and Reflection of Altered Enzyme Activity in Dystrophic Muscle: One Critical View." Journal of Biomedical Research & Environmental Sciences 1, no. 8 (2020): 393–403. http://dx.doi.org/10.37871/jbres1171.

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Abstract (sommario):

Muscular dystrophies are inherited myogenic diseases and considered by progressive muscle wasting and weakness with variable distribution and severity. The essential characteristics of muscular dystrophies are selective involvement, significant wasting and weakness of muscles. The most common and frequent types of muscular dystrophies are Duchenne Muscular Dystrophy (DMD), Becker Muscular Dystrophy (BMD), Facioscapulohumeral Dystrophy (FSHD) and Limb Girdle Muscular Dystrophy (LGMD). Metabolic disturbance is observed in muscular dystrophy patients (DMD, BMD, FSHD and LGMD-2B). Alteration in th

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14

Niraj, Kumar Srivastava1-3* Somnath Mukherjee2 4. and Vijay Nath Mishra5. "Metabolic Disturbance in Patients with Muscular Dystrophy and Reflection of Altered Enzyme Activity in Dystrophic Muscle: One Critical View." Journal of Biomedical Research & Environmental Sciences 1, no. 8 (2020): 393–403. https://doi.org/10.37871/jbres1171.

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Abstract (sommario):

Muscular dystrophies are inherited myogenic diseases and considered by progressive muscle wasting and weakness with variable distribution and severity. The essential characteristics of muscular dystrophies are selective involvement, signifi cant wasting and weakness of muscles. The most common and frequent types of muscular dystrophies are Duchenne Muscular Dystrophy (DMD), Becker Muscular Dystrophy (BMD), Facioscapulohumeral Dystrophy (FSHD) and Limb Girdle Muscular Dystrophy (LGMD). Metabolic disturbance is observed in muscular dystrophy patients (DMD, BMD, FSHD and LGMD-2B). Alteration in t

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15

Pelosi, Laura, Laura Forcina, Carmine Nicoletti, Bianca Maria Scicchitano, and Antonio Musarò. "Increased Circulating Levels of Interleukin-6 Induce Perturbation in Redox-Regulated Signaling Cascades in Muscle of Dystrophic Mice." Oxidative Medicine and Cellular Longevity 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/1987218.

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Duchenne muscular dystrophy (DMD) is an X-linked genetic disease in which dystrophin gene is mutated, resulting in dysfunctional or absent dystrophin protein. The pathology of dystrophic muscle includes degeneration, necrosis with inflammatory cell invasion, regeneration, and fibrous and fatty changes. Nevertheless, the mechanisms by which the absence of dystrophin leads to muscle degeneration remain to be fully elucidated. An imbalance between oxidant and antioxidant systems has been proposed as a secondary effect of DMD. However, the significance and precise extent of the perturbation in red

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16

Watchko, Jon F., Terrence L. O'Day, and Eric P. Hoffman. "Functional characteristics of dystrophic skeletal muscle: insights from animal models." Journal of Applied Physiology 93, no. 2 (2002): 407–17. http://dx.doi.org/10.1152/japplphysiol.01242.2001.

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Muscular dystrophies are a clinically and genetically heterogeneous group of disorders that show myofiber degeneration and regeneration. Identification of animal models of muscular dystrophy has been instrumental in research on the pathogenesis, pathophysiology, and treatment of these disorders. We review our understanding of the functional status of dystrophic skeletal muscle from selected animal models with a focus on 1) the mdx mouse model of Duchenne muscular dystrophy, 2) the Bio 14.6 δ-sarcoglycan-deficient hamster model of limb-girdle muscular dystrophy, and 3) transgenic null mutant mu

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17

Hoang, Tiffany, and Regina A. E. Dowdy. "A Review of Muscular Dystrophies." Anesthesia Progress 71, no. 1 (2024): 44–52. http://dx.doi.org/10.2344/673191.

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Muscular dystrophy encompasses a group of genetic conditions with progressive muscle damage and weakness. Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) are X-linked recessive disorders that affect the production of the protein dystrophin. Emery-Dreifuss muscular dystrophy (EDMD) is typically an X-linked-recessive disorder involving the gene that codes for emerin. Facioscapulohumeral muscular dystrophy and oculopharyngeal muscular dystrophy (OPMD) are both autosomal dominant disorders. Although commonly mistaken as a condition in which patients are susceptible to maligna

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18

Nogami, Ken'ichiro, Yusuke Maruyama, Fusako Sakai-Takemura, et al. "Pharmacological activation of SERCA ameliorates dystrophic phenotypes in dystrophin-deficient mdx mice." Human Molecular Genetics 30, no. 11 (2021): 1006–19. http://dx.doi.org/10.1093/hmg/ddab100.

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Abstract Duchenne muscular dystrophy (DMD) is an X-linked genetic disorder characterized by progressive muscular weakness because of the loss of dystrophin. Extracellular Ca2+ flows into the cytoplasm through membrane tears in dystrophin-deficient myofibers, which leads to muscle contracture and necrosis. Sarco/endoplasmic reticulum Ca2+-ATPase (SERCA) takes up cytosolic Ca2+ into the sarcoplasmic reticulum, but its activity is decreased in dystrophic muscle. Here, we show that an allosteric SERCA activator, CDN1163, ameliorates dystrophic phenotypes in dystrophin-deficient mdx mice. The admin

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19

Peter, Angela K., Jamie L. Marshall, and Rachelle H. Crosbie. "Sarcospan reduces dystrophic pathology: stabilization of the utrophin–glycoprotein complex." Journal of Cell Biology 183, no. 3 (2008): 419–27. http://dx.doi.org/10.1083/jcb.200808027.

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Mutations in the dystrophin gene cause Duchenne muscular dystrophy and result in the loss of dystrophin and the entire dystrophin–glycoprotein complex (DGC) from the sarcolemma. We show that sarcospan (SSPN), a unique tetraspanin-like component of the DGC, ameliorates muscular dystrophy in dystrophin-deficient mdx mice. SSPN stabilizes the sarcolemma by increasing levels of the utrophin–glycoprotein complex (UGC) at the extrasynaptic membrane to compensate for the loss of dystrophin. Utrophin is normally restricted to the neuromuscular junction, where it replaces dystrophin to form a functiona

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Carberry, Steven, Margit Zweyer, Dieter Swandulla, and Kay Ohlendieck. "Profiling of Age-Related Changes in theTibialis AnteriorMuscle Proteome of the mdx Mouse Model of Dystrophinopathy." Journal of Biomedicine and Biotechnology 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/691641.

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X-linked muscular dystrophy is a highly progressive disease of childhood and characterized by primary genetic abnormalities in the dystrophin gene. Senescent mdx specimens were used for a large-scale survey of potential age-related alterations in the dystrophic phenotype, because the established mdx animal model of dystrophinopathy exhibits progressive deterioration of muscle tissue with age. Since the mdxtibialis anteriormuscle is a frequently used model system in muscular dystrophy research, we employed this particular muscle to determine global changes in the dystrophic skeletal muscle prot

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21

Hoffman, Eric P. "Muscular Dystrophy." Archives of Pathology & Laboratory Medicine 123, no. 11 (1999): 1050–52. http://dx.doi.org/10.5858/1999-123-1050-md.

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Abstract The application of cloned genes and their protein products to molecular diagnostics has been an increasingly important area of pathology. The first gene to be identified by positional cloning was the Duchenne muscular dystrophy gene, mutations of which cause one of the most common and most devastating human inherited conditions. The identification of the responsible gene and the encoded dystrophin protein has resulted in a large series of studies concerning the other components of the membrane cytoskeleton of myofibers and their involvement in different forms of muscular dystrophy. Th

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González-Jamett, Arlek, Walter Vásquez, Gabriela Cifuentes-Riveros, Rafaela Martínez-Pando, Juan C. Sáez, and Ana M. Cárdenas. "Oxidative Stress, Inflammation and Connexin Hemichannels in Muscular Dystrophies." Biomedicines 10, no. 2 (2022): 507. http://dx.doi.org/10.3390/biomedicines10020507.

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Muscular dystrophies (MDs) are a heterogeneous group of congenital neuromuscular disorders whose clinical signs include myalgia, skeletal muscle weakness, hypotonia, and atrophy that leads to progressive muscle disability and loss of ambulation. MDs can also affect cardiac and respiratory muscles, impairing life-expectancy. MDs in clude Duchenne muscular dystrophy, Emery-Dreifuss muscular dystrophy, facioscapulohumeral muscular dystrophy and limb-girdle muscular dystrophy. These and other MDs are caused by mutations in genes that encode proteins responsible for the structure and function of sk

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Blake, Derek J., Andrew Weir, Sarah E. Newey, and Kay E. Davies. "Function and Genetics of Dystrophin and Dystrophin-Related Proteins in Muscle." Physiological Reviews 82, no. 2 (2002): 291–329. http://dx.doi.org/10.1152/physrev.00028.2001.

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The X-linked muscle-wasting disease Duchenne muscular dystrophy is caused by mutations in the gene encoding dystrophin. There is currently no effective treatment for the disease; however, the complex molecular pathology of this disorder is now being unravelled. Dystrophin is located at the muscle sarcolemma in a membrane-spanning protein complex that connects the cytoskeleton to the basal lamina. Mutations in many components of the dystrophin protein complex cause other forms of autosomally inherited muscular dystrophy, indicating the importance of this complex in normal muscle function. Altho

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Bernier-Parker, Nathan, Trevor W. Moore, Laura B. Stainback, et al. "Dystrophin-Deficient Muscular Dystrophy in an Australian Cattle Dog (Blue Heeler)." Journal of the American Animal Hospital Association 61, no. 4 (2025): 107–10. https://doi.org/10.5326/jaaha-ms-7480.

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ABSTRACT X-linked dystrophin-deficient muscular dystrophy is associated with a mutation of the DYS gene located on the X chromosome. To date, dystrophinopathy has been identified in 16 different dog breeds with 20 different variants confirmed. In this report, a 9 mo old male Australian cattle dog was evaluated for progressive generalized weakness and dysphagia beginning at 4 mo of age. A markedly elevated creatine kinase activity was noted on blood chemistry, and muscle biopsies confirmed a dystrophic phenotype. Dystrophin deficiency was identified by immunohistochemistry. In this report we id

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Niebrój-Dobosz, Irena, and Irena Hausmanowa-Petrusewicz. "The involvement of oxidative stress in determining the severity and progress of pathological processes in dystrophin-deficient muscles." Acta Biochimica Polonica 52, no. 2 (2005): 449–52. http://dx.doi.org/10.18388/abp.2005_3458.

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In both forms of muscular dystrophy, the severe Duchenne's muscular dystrophy (DMD) with lifespan shortened to about 20 years and the milder Becker dystrophy (BDM) with normal lifespan, the gene defect is located at chromosome locus Xp21. The location is the same in the experimental model of DMD in the mdx mice. As the result of the gene defect a protein called dystrophin is either not synthesized, or is produced in traces. Although the structure of this protein is rather well established there are still many controversies about the dystrophin function. The most accepted suggestion supposes th

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Nishtaa, Modi. "Analyze the Molecular Genetics of a Solitary Causative Genetic Material behind Muscular Dystrophy." International Journal of Trend in Scientific Research and Development 4, no. 2 (2020): 33–36. https://doi.org/10.5281/zenodo.3842827.

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Abstract (sommario):

Muscular dystrophy is a genetic disorder characterized by progressive muscle weakness and degeneration. Duchenne muscular dystrophy DMD is the most common X linked disorder muscular dystrophy. It is caused by an absence of the protein named as dystrophin, which helps to keep muscle cells intact. In my research on this topic, I will emphasis on a complete analysis of molecular gene behind muscular dystrophy. According to a survey with few hospitals labs in my region with 40 50 patients, we had identified the ratio of around 90 of male and 10 of the female victim with the muscular dystrophy diso

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Niranjan, Nandita, Satvik Mareedu, Yimin Tian, et al. "Sarcolipin overexpression impairs myogenic differentiation in Duchenne muscular dystrophy." American Journal of Physiology-Cell Physiology 317, no. 4 (2019): C813—C824. http://dx.doi.org/10.1152/ajpcell.00146.2019.

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Reduction in the expression of sarcolipin (SLN), an inhibitor of sarco(endo)plasmic reticulum (SR) Ca2+-ATPase (SERCA), ameliorates severe muscular dystrophy in mice. However, the mechanism by which SLN inhibition improves muscle structure remains unclear. Here, we describe the previously unknown function of SLN in muscle differentiation in Duchenne muscular dystrophy (DMD). Overexpression of SLN in C2C12 resulted in decreased SERCA pump activity, reduced SR Ca2+ load, and increased intracellular Ca2+ ([Formula: see text]) concentration. In addition, SLN overexpression resulted in altered expr

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Hilton, Stephanie, Matthias Christen, Thomas Bilzer, Vidhya Jagannathan, Tosso Leeb, and Urs Giger. "Dystrophin (DMD) Missense Variant in Cats with Becker-Type Muscular Dystrophy." International Journal of Molecular Sciences 24, no. 4 (2023): 3192. http://dx.doi.org/10.3390/ijms24043192.

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Muscular dystrophy due to dystrophin deficiency in humans is phenotypically divided into a severe Duchenne and milder Becker type. Dystrophin deficiency has also been described in a few animal species, and few DMD gene variants have been identified in animals. Here, we characterize the clinical, histopathological, and molecular genetic aspects of a family of Maine Coon crossbred cats with clinically mild and slowly progressive muscular dystrophy. Two young adult male littermate cats exhibited abnormal gait and muscular hypertrophy with macroglossia. Serum creatine kinase activities were highly

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Gumerson, Jessica D., and Daniel E. Michele. "The Dystrophin-Glycoprotein Complex in the Prevention of Muscle Damage." Journal of Biomedicine and Biotechnology 2011 (2011): 1–13. http://dx.doi.org/10.1155/2011/210797.

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Muscular dystrophies are genetically diverse but share common phenotypic features of muscle weakness, degeneration, and progressive decline in muscle function. Previous work has focused on understanding how disruptions in the dystrophin-glycoprotein complex result in muscular dystrophy, supporting a hypothesis that the muscle sarcolemma is fragile and susceptible to contraction-induced injury in multiple forms of dystrophy. Although benign in healthy muscle, contractions in dystrophic muscle may contribute to a higher degree of muscle damage which eventually overwhelms muscle regeneration capa

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Srivastava, Pallavi, Kiran Preet Malhotra, Nuzhat Husain, Hardeep Singh Malhotra, Dinkar Kulshreshtha, and Akanksha Anand. "Diagnosing Muscular Dystrophies: Comparison of Techniques and Their Cost Effectiveness: A Multi-institutional Study." Journal of Neurosciences in Rural Practice 11, no. 03 (2020): 420–29. http://dx.doi.org/10.1055/s-0040-1713301.

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Abstract Background The diagnosis of muscular dystrophies involves clinical discretion substantiated by dystrophic changes on muscle biopsy. The different subtypes of muscular dystrophy can be diagnosed using techniques to identify the loss of protein or molecular alterations. Materials and Methods Clinically suspicious cases confirmed to have muscular dystrophy on muscle biopsy seen at two tertiary care centers in North India were enrolled for the study. Immunohistochemistry (IHC) for dystrophin, merosin, sarcoglycan, emerin, and dysferlin proteins was performed. The spectrum of muscular dyst

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lordlin, Dr R. T. J. R. Lordlin, and Dr Franklin Shaju. "PHYSIO IN DUCHENNE MUSCULAR DYSTROPHY (DMD)." IDC International Journal 8, no. 4 (2021): 1–4. http://dx.doi.org/10.47211/idcij.2021.v08i04.001.

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Duchenne muscular dystrophy is the most common and severe form of muscular dystrophy and is caused by mutations in the dystrophin gene. Dystrophin, together with several other protein components, is part of a complex known as the dystrophin glycoprotein complex (DGC). The DGC plays an essential role in maintaining the structural integrity of the muscle cell membrane by providing a link between the extracellular matrix and the cytoskeleton

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Gargan, Stephen, Paul Dowling, Margit Zweyer, et al. "Proteomic Identification of Markers of Membrane Repair, Regeneration and Fibrosis in the Aged and Dystrophic Diaphragm." Life 12, no. 11 (2022): 1679. http://dx.doi.org/10.3390/life12111679.

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Deficiency in the membrane cytoskeletal protein dystrophin is the underlying cause of the progressive muscle wasting disease named Duchenne muscular dystrophy. In order to detect novel disease marker candidates and confirm the complexity of the pathobiochemical signature of dystrophinopathy, mass spectrometric screening approaches represent ideal tools for comprehensive biomarker discovery studies. In this report, we describe the comparative proteomic analysis of young versus aged diaphragm muscles from wild type versus the dystrophic mdx-4cv mouse model of X-linked muscular dystrophy. The sur

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Faqih, M. Izza Zulfana, Wahyu Tri Sudaryanto, and Salma Muazzaroh. "ACTIVE ASSISTED MOVEMENT DALAM MENJAGA KEMAMPUAN FUNGSIONAL PADA KONDISI DUCHENNE MUSCULAR DYSTROPHY." Journal of Innovation Research and Knowledge 3, no. 1 (2023): 5047–52. http://dx.doi.org/10.53625/jirk.v3i1.5990.

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Background: Duchenne muscular dystrophy which is a recessive x-linked disorder that often affects males. Duchenne muscular dystrophy is caused by mutations in the dystrophin gene at the Xp21 locus so that dystrophin protein is not produced or dystrophin deficiency and structural abnormalities occur. Dystrophinopathies are X-linked recessive disorders affecting 1 in 5,000 to 1 in 6,000 live male births. The prevalence of DMD is less than 10 cases per 100,000 males. Objective: Physiotherapy management in this case aims to determine the benefits of providing physiotherapy interventions in the for

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Chen, Yi-Wen, Po Zhao, Rehannah Borup, and Eric P. Hoffman. "Expression Profiling in the Muscular Dystrophies." Journal of Cell Biology 151, no. 6 (2000): 1321–36. http://dx.doi.org/10.1083/jcb.151.6.1321.

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We used expression profiling to define the pathophysiological cascades involved in the progression of two muscular dystrophies with known primary biochemical defects, dystrophin deficiency (Duchenne muscular dystrophy) and α-sarcoglycan deficiency (a dystrophin-associated protein). We employed a novel protocol for expression profiling in human tissues using mixed samples of multiple patients and iterative comparisons of duplicate datasets. We found evidence for both incomplete differentiation of patient muscle, and for dedifferentiation of myofibers to alternative lineages with advancing age.

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Danisovic, Lubos, Martina Culenova, and Maria Csobonyeiova. "Induced Pluripotent Stem Cells for Duchenne Muscular Dystrophy Modeling and Therapy." Cells 7, no. 12 (2018): 253. http://dx.doi.org/10.3390/cells7120253.

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Abstract (sommario):

Duchenne muscular dystrophy (DMD) is an X-linked recessive disorder, caused by mutation of the DMD gene which encodes the protein dystrophin. This dystrophin defect leads to the progressive degeneration of skeletal and cardiac muscles. Currently, there is no effective therapy for this disorder. However, the technology of cell reprogramming, with subsequent controlled differentiation to skeletal muscle cells or cardiomyocytes, may provide a unique tool for the study, modeling, and treatment of Duchenne muscular dystrophy. In the present review, we describe current methods of induced pluripotent

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Iqbal, Aqsa, Ulrike May, Stuart N. Prince, Tero A. H. Järvinen та Ahlke Heydemann. "Systemically Administered Homing Peptide Targets Dystrophic Lesions and Delivers Transforming Growth Factor-β (TGFβ) Inhibitor to Attenuate Murine Muscular Dystrophy Pathology". Pharmaceutics 13, № 9 (2021): 1506. http://dx.doi.org/10.3390/pharmaceutics13091506.

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Abstract (sommario):

Muscular dystrophy is a progressively worsening and lethal disease, where accumulation of functionality-impairing fibrosis plays a key pathogenic role. Transforming growth factor-β1 (TGFβ1) is a central signaling molecule in the development of fibrosis in muscular dystrophic humans and mice. Inhibition of TGFβ1 has proven beneficial in mouse models of muscular dystrophy, but the global strategies of TGFβ1 inhibition produce significant detrimental side effects. Here, we investigated whether murine muscular dystrophy lesion-specific inhibition of TGFβ1 signaling by the targeted delivery of ther

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Assereto, Stefania, Silvia Stringara, Federica Sotgia, et al. "Pharmacological rescue of the dystrophin-glycoprotein complex in Duchenne and Becker skeletal muscle explants by proteasome inhibitor treatment." American Journal of Physiology-Cell Physiology 290, no. 2 (2006): C577—C582. http://dx.doi.org/10.1152/ajpcell.00434.2005.

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Abstract (sommario):

In this report, we have developed a novel method to identify compounds that rescue the dystrophin-glycoprotein complex (DGC) in patients with Duchenne or Becker muscular dystrophy. Briefly, freshly isolated skeletal muscle biopsies (termed skeletal muscle explants) from patients with Duchenne or Becker muscular dystrophy were maintained under defined cell culture conditions for a 24-h period in the absence or presence of a specific candidate compound. Using this approach, we have demonstrated that treatment with a well-characterized proteasome inhibitor, MG-132, is sufficient to rescue the exp

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Beckers, Evy, Ine Cornelis, Sofie F. M. Bhatti, et al. "A Nonsense Variant in the DMD Gene Causes X-Linked Muscular Dystrophy in the Maine Coon Cat." Animals 12, no. 21 (2022): 2928. http://dx.doi.org/10.3390/ani12212928.

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Abstract (sommario):

(1) Feline dystrophin-deficient muscular dystrophy (ddMD) is a fatal disease characterized by progressive weakness and degeneration of skeletal muscles and is caused by variants in the DMD gene. To date, only two feline causal variants have been identified. This study reports two cases of male Maine coon siblings that presented with muscular hypertrophy, growth retardation, weight loss, and vomiting. (2) Both cats were clinically examined and histopathology and immunofluorescent staining of the affected muscle was performed. DMD mRNA was sequenced to identify putative causal variants. (3) Both

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Jufan, Akhmad Yun, Djayanti Sari, and Karlina Mahardieni. "DUCHENNE MUSCULER DYSTROPHY." Jurnal Komplikasi Anestesi 3, no. 2 (2023): 47–53. http://dx.doi.org/10.22146/jka.v3i2.7242.

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Abstract (sommario):

Duchenne muscular dystrophy merupakan suatu kelainan otot yang sering ditemui. Penyakit ini terpaut pada kromosom X yang disebabkan oleh mutasi gen dystrophin. Gejalanya berupa kelemahan otot proksimal yang berat, bersifat degenerasi progresif dan infi ltrasi lemak ke otot. Efek duchenne muscular dystrophy terhadap otot respirasi dan berhubungan dengan kardio-miopati yang dapat mengarah ke kematian.Dilaporkan anak laki-laki usia 12 tahun dengan diagnosa duchenne muscular dystrophy dd/ Baker’s muscular dystrophy dilakukan prosedur biopsi. Pasien dinilai sebagai status fi sik ASA 2 yang dilakuka

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D’Amario, Domenico, Aoife Gowran, Francesco Canonico, et al. "Dystrophin Cardiomyopathies: Clinical Management, Molecular Pathogenesis and Evolution towards Precision Medicine." Journal of Clinical Medicine 7, no. 9 (2018): 291. http://dx.doi.org/10.3390/jcm7090291.

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Abstract (sommario):

Duchenne’s muscular dystrophy is an X-linked neuromuscular disease that manifests as muscle atrophy and cardiomyopathy in young boys. However, a considerable percentage of carrier females are often diagnosed with cardiomyopathy at an advanced stage. Existing therapy is not disease-specific and has limited effect, thus many patients and symptomatic carrier females prematurely die due to heart failure. Early detection is one of the major challenges that muscular dystrophy patients, carrier females, family members and, research and medical teams face in the complex course of dystrophic cardiomyop

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Rubi, Lena, Vaibhavkumar S. Gawali, Helmut Kubista, Hannes Todt, Karlheinz Hilber, and Xaver Koenig. "Proper Voltage-Dependent Ion Channel Function in Dysferlin-Deficient Cardiomyocytes." Cellular Physiology and Biochemistry 36, no. 3 (2015): 1049–58. http://dx.doi.org/10.1159/000430278.

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Abstract (sommario):

Background/Aims: Dysferlin plays a decisive role in calcium-dependent membrane repair in myocytes. Mutations in the encoding DYSF gene cause a number of myopathies, e.g. limb-girdle muscular dystrophy type 2B (LGMD2B). Besides skeletal muscle degenerative processes, dysferlin deficiency is also associated with cardiac complications. Thus, both LGMD2B patients and dysferlin-deficient mice develop a dilated cardiomyopathy. We and others have recently reported that dystrophin-deficient ventricular cardiomyocytes from mouse models of Duchenne muscular dystrophy show significant abnormalities in vo

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Arora, Shivani, and Chirag Arora. "A REVIEW ON CONCEPTUAL STUDY OF MUSCULAR DYSTROPHIES: AN AYURVEDIC PERSPECTIVE." International Journal of Research in Ayurveda and Pharmacy 13, no. 01 (2022): 92–95. http://dx.doi.org/10.7897/2277-4343.130121.

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Abstract (sommario):

Muscular dystrophies (M.D.) are a category of hereditary illnesses defined by degeneration of the skeletal muscles that control mobility, culminating in muscle atrophy, weakness, confinement to a wheelchair, and eventually death. The most common muscular dystrophy is Duchenne muscular dystrophy (DMD), caused by a lack of the dystrophin gene. In Ayurvedic scriptures, muscular dystrophy is not explicitly linked to any ailment. The notion of Adibala pravritta vyadhi in Ayurveda helps to explain this aetiology. Pathogenesis occurs here due to Beejobhagavayava dushti, which leads to Mamsa Vata dush

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Freund, Aline Andrade, Rosana Herminia Scola, Raquel Cristina Arndt, Paulo José Lorenzoni, Claudia Kamoy Kay, and Lineu Cesar Werneck. "Duchenne and Becker muscular dystrophy: a molecular and immunohistochemical approach." Arquivos de Neuro-Psiquiatria 65, no. 1 (2007): 73–76. http://dx.doi.org/10.1590/s0004-282x2007000100016.

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Abstract (sommario):

Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) are caused by mutations in the dystrophin gene. We studied 106 patients with a diagnosis of probable DMD/BMD by analyzing 20 exons of the dystrophin gene in their blood and, in some of the cases, by immunohistochemical assays for dystrophin in muscle biopsies. In 71.7% of the patients, deletions were found in at least one of the exons; 68% of these deletions were in the hot-spot 3' region. Deletions were found in 81.5% of the DMD cases and in all the BMD cases. The cases without deletions, which included the only woman in th

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Shelton, G. Diane, Katie M. Minor, Steven G. Friedenberg, Jonah N. Cullen, Ling T. Guo, and James R. Mickelson. "Current Classification of Canine Muscular Dystrophies and Identification of New Variants." Genes 14, no. 8 (2023): 1557. http://dx.doi.org/10.3390/genes14081557.

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Abstract (sommario):

The spectrum of canine muscular dystrophies has rapidly grown with the recent identification of several more affected breeds and associated mutations. Defects include those in genes and protein products associated with the sarcolemma (dystrophin deficient X-linked muscular dystrophy and sarcoglycan-deficient limb–girdle muscular dystrophy) and with the extracellular matrix (collagen 6, laminin α2, and α-dystroglycan-deficient congenital muscular dystrophies). With the increasing application of whole genome sequencing and whole exome sequencing, the clinical and pathological spectra associated

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Kikuchi, Tateki. "Caveolin-3: A Causative Process of Chicken Muscular Dystrophy." Biomolecules 10, no. 9 (2020): 1206. http://dx.doi.org/10.3390/biom10091206.

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Abstract (sommario):

The etiology of chicken muscular dystrophy is the synthesis of aberrant WW domain containing E3 ubiquitin-protein ligase 1 (WWP1) protein made by a missense mutation of WWP1 gene. The β-dystroglycan that confers stability to sarcolemma was identified as a substrate of WWP protein, which induces the next molecular collapse. The aberrant WWP1 increases the ubiquitin ligase-mediated ubiquitination following severe degradation of sarcolemmal and cytoplasmic β-dystroglycan, and an erased β-dystroglycan in dystrophic αW fibers will lead to molecular imperfection of the dystrophin-glycoprotein comple

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Thompson, Terri G., Yiu-Mo Chan, Andrew A. Hack, et al. "Filamin 2 (FLN2): A Muscle-specific Sarcoglycan Interacting Protein." Journal of Cell Biology 148, no. 1 (2000): 115–26. http://dx.doi.org/10.1083/jcb.148.1.115.

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Abstract (sommario):

Mutations in genes encoding for the sarcoglycans, a subset of proteins within the dystrophin–glycoprotein complex, produce a limb-girdle muscular dystrophy phenotype; however, the precise role of this group of proteins in the skeletal muscle is not known. To understand the role of the sarcoglycan complex, we looked for sarcoglycan interacting proteins with the hope of finding novel members of the dystrophin–glycoprotein complex. Using the yeast two-hybrid method, we have identified a skeletal muscle-specific form of filamin, which we term filamin 2 (FLN2), as a γ- and δ-sarcoglycan interacting

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Spaulding, Hannah R., Tiffany Quindry, Kayleen Hammer, John C. Quindry, and Joshua T. Selsby. "Nutraceutical and pharmaceutical cocktails did not improve muscle function or reduce histological damage in D2-mdx mice." Journal of Applied Physiology 127, no. 4 (2019): 1058–66. http://dx.doi.org/10.1152/japplphysiol.00162.2019.

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Abstract (sommario):

Progressive muscle injury and weakness are hallmarks of Duchenne muscular dystrophy. We showed previously that quercetin (Q) partially protected dystrophic limb muscles from disease-related injury. As quercetin activates PGC-1α through Sirtuin-1, an NAD+-dependent deacetylase, the depleted NAD+ in dystrophic skeletal muscle may limit quercetin efficacy; hence, supplementation with the NAD+ donor, nicotinamide riboside (NR), may facilitate quercetin efficacy. Lisinopril (Lis) protects skeletal muscle and improves cardiac function in dystrophin-deficient mice; therefore, it was included in this

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Wehling, Michelle, Melissa J. Spencer, and James G. Tidball. "A nitric oxide synthase transgene ameliorates muscular dystrophy in mdx mice." Journal of Cell Biology 155, no. 1 (2001): 123–32. http://dx.doi.org/10.1083/jcb.200105110.

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Abstract (sommario):

Dystrophin-deficient muscles experience large reductions in expression of nitric oxide synthase (NOS), which suggests that NO deficiency may influence the dystrophic pathology. Because NO can function as an antiinflammatory and cytoprotective molecule, we propose that the loss of NOS from dystrophic muscle exacerbates muscle inflammation and fiber damage by inflammatory cells. Analysis of transgenic mdx mice that were null mutants for dystrophin, but expressed normal levels of NO in muscle, showed that the normalization of NO production caused large reductions in macrophage concentrations in t

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Suelves, Mònica, Berta Vidal, Antonio L. Serrano, et al. "uPA deficiency exacerbates muscular dystrophy in MDX mice." Journal of Cell Biology 178, no. 6 (2007): 1039–51. http://dx.doi.org/10.1083/jcb.200705127.

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Abstract (sommario):

Duchenne muscular dystrophy (DMD) is a fatal and incurable muscle degenerative disorder. We identify a function of the protease urokinase plasminogen activator (uPA) in mdx mice, a mouse model of DMD. The expression of uPA is induced in mdx dystrophic muscle, and the genetic loss of uPA in mdx mice exacerbated muscle dystrophy and reduced muscular function. Bone marrow (BM) transplantation experiments revealed a critical function for BM-derived uPA in mdx muscle repair via three mechanisms: (1) by promoting the infiltration of BM-derived inflammatory cells; (2) by preventing the excessive depo

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Burkin, Dean J., Gregory Q. Wallace, Kimberly J. Nicol, David J. Kaufman та Stephen J. Kaufman. "Enhanced Expression of the α7β1 Integrin Reduces Muscular Dystrophy and Restores Viability in Dystrophic Mice". Journal of Cell Biology 152, № 6 (2001): 1207–18. http://dx.doi.org/10.1083/jcb.152.6.1207.

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Abstract (sommario):

Muscle fibers attach to laminin in the basal lamina using two distinct mechanisms: the dystrophin glycoprotein complex and the α7β1 integrin. Defects in these linkage systems result in Duchenne muscular dystrophy (DMD), α2 laminin congenital muscular dystrophy, sarcoglycan-related muscular dystrophy, and α7 integrin congenital muscular dystrophy. Therefore, the molecular continuity between the extracellular matrix and cell cytoskeleton is essential for the structural and functional integrity of skeletal muscle. To test whether the α7β1 integrin can compensate for the absence of dystrophin, we

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