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2.
Rev Neurol ; 57(10): 455-62, 2013 Nov 16.
Article in Spanish | MEDLINE | ID: mdl-24203668

ABSTRACT

Duchenne muscular dystrophy is a severe, debilitating and progressive disease that affects 1 in 3,500 live male births in the world. The diagnosis should be confirmed by genetic testing to identify the mutation in the DMD gene or muscle biopsy and immunostaining to demonstrate the absence of dystrophin. Although up to now continues to be an incurable disease, this does not mean it has no treatment. Treatment should be multidisciplinary, looking for the functionality of the patient and avoiding or correcting complications, mainly cardio-respiratory and skeletal. Many proposals have been evaluated and implemented with the aim of improving the quality of life for these patients. The long-term steroids have shown significant benefits, such as prolonging ambulation, reduce the need for spinal surgery, improve cardiorespiratory function and increase survival and the quality of life. This document presents the recommendations based on the experience of the working group and experts worldwide on the diagnosis and treatment with steroids for patients with Duchenne muscular dystrophy.


TITLE: Diagnostico y tratamiento con esteroides de pacientes con distrofia muscular de Duchenne: experiencia y recomendaciones para Mexico.La distrofia muscular de Duchenne es una enfermedad grave, incapacitante y progresiva que afecta a 1 de cada 3.500 recien nacidos varones alrededor del mundo. El diagnostico debera confirmarse mediante pruebas geneticas para identificar la mutacion en el gen DMD, o bien por biopsia muscular e inmunotincion para demostrar la ausencia de distrofina. Aunque actualmente continua siendo una enfermedad incurable, no significa que no tenga tratamiento. Este debe ser multidisciplinario, buscando la funcionalidad del paciente y evitando o corrigiendo las complicaciones, principalmente cardiorrespiratorias y esqueleticas. Se han evaluado e implementado multiples propuestas con la finalidad de mejorar la calidad de vida en estos pacientes. Los esteroides a largo plazo han demostrado importantes beneficios para los pacientes, prolongan la deambulacion, reducen la necesidad de cirugia de columna, mejoran la funcion cardiorrespiratoria, y aumentan la supervivencia y la calidad de vida. En este documento se presentan las recomendaciones con base en la experiencia del grupo de trabajo y de los expertos de ambito mundial sobre el diagnostico y el tratamiento con esteroides para los pacientes con distrofia muscular de Duchenne.


Subject(s)
Adrenal Cortex Hormones/therapeutic use , Muscular Dystrophy, Duchenne/drug therapy , Adrenal Cortex Hormones/administration & dosage , Adrenal Cortex Hormones/adverse effects , Caregivers/education , Combined Modality Therapy , Diagnosis, Differential , Dystrophin/genetics , Heart Diseases/etiology , Heart Diseases/prevention & control , Humans , Hyperglycemia/chemically induced , Immunosuppression Therapy , Incidence , Male , Mexico/epidemiology , Molecular Diagnostic Techniques , Muscular Dystrophy, Duchenne/diagnosis , Muscular Dystrophy, Duchenne/epidemiology , Muscular Dystrophy, Duchenne/genetics , Muscular Dystrophy, Duchenne/rehabilitation , Obesity/chemically induced , Patient Care Team , Physical Therapy Modalities , Quality of Life , Respiratory Insufficiency/etiology , Respiratory Insufficiency/prevention & control , Respiratory Therapy
3.
Rev. neurol. (Ed. impr.) ; 57(10): 455-462, 16 nov., 2013. tab, ilus
Article in Spanish | IBECS | ID: ibc-117515

ABSTRACT

La distrofia muscular de Duchenne es una enfermedad grave, incapacitante y progresiva que afecta a 1 de cada 3.500 recién nacidos varones alrededor del mundo. El diagnóstico deberá confirmarse mediante pruebas genéticas para identificar la mutación en el gen DMD, o bien por biopsia muscular e inmunotinción para demostrar la ausencia de distrofina. Aunque actualmente continúa siendo una enfermedad incurable, no significa que no tenga tratamiento. Éste debe ser multidisciplinario, buscando la funcionalidad del paciente y evitando o corrigiendo las complicaciones, principalmente cardiorrespiratorias y esqueléticas. Se han evaluado e implementado múltiples propuestas con la finalidad de mejorar la calidad de vida en estos pacientes. Los esteroides a largo plazo han demostrado importantes beneficios para los pacientes, prolongan la deambulación, reducen la necesidad de cirugía de columna, mejoran la función cardiorrespiratoria, y aumentan la supervivencia y la calidad de vida. En este documento se presentan las recomendaciones con base en la experiencia del grupo de trabajo y de los expertos de ámbito mundial sobre el diagnóstico y el tratamiento con esteroides para los pacientes con distrofia muscular de Duchenne (AU)


Duchenne muscular dystrophy is a severe, debilitating and progressive disease that affects 1 in 3,500 live male births in the world. The diagnosis should be confirmed by genetic testing to identify the mutation in the DMD gene or muscle biopsy and immunostaining to demonstrate the absence of dystrophin. Although up to now continues to be an incurable disease, this does not mean it has no treatment. Treatment should be multidisciplinary, looking for the functionality of the patient and avoiding or correcting complications, mainly cardio-respiratory and skeletal. Many proposals have been evaluated and implemented with the aim of improving the quality of life for these patients. The longterm steroids have shown significant benefits, such as prolonging ambulation, reduce the need for spinal surgery, improve cardiorespiratory function and increase survival and the quality of life. This document presents the recommendations based on the experience of the working group and experts worldwide on the diagnosis and treatment with steroids for patients with Duchenne muscular dystrophy (AU)


Subject(s)
Humans , Muscular Dystrophy, Duchenne/diagnosis , Muscular Dystrophy, Duchenne/drug therapy , Steroids/therapeutic use , Prednisone/therapeutic use , Patient Care Team/organization & administration
4.
Rev. neurol. (Ed. impr.) ; 52(12): 720-724, 16 jun., 2011. ilus
Article in Spanish | IBECS | ID: ibc-91665

ABSTRACT

Introducción. La distrofia muscular de Duchenne (DMD) es un trastorno caracterizado por atrofia muscular progresiva y debilidad, debido a la ausencia o alteración de la función de la distrofina, una proteína que protege a las células del músculo de la tensión mecánica inducida durante la contracción. Las mutaciones en el gen DMD pueden dar lugar a diferentes fenotipos clínicos, conocidos colectivamente como distrofinopatías, de los cuales la DMD es el más grave. Caso clínico. Se presenta una deleción nueva de los exones 24-41, que no interrumpe el marco de lectura y se espera que origine un fenotipo leve. Por el contrario, el paciente tiene un fenotipo DMD grave. Conclusiones. Nuestra comunicación apoya la hipótesis de que la interrupción del sitio de unión a gamma-actina situado en el dominio cilíndrico central desempeña un papel crucial en la función de amortiguador de distrofina en las células musculares. La descripción de las variantes patogénicas en el gen DMD y los fenotipos resultantes tienen importantes implicaciones en el diseño de estrategias terapéuticas moleculares para la DMD (AU)


Introduction. Duchenne muscular dystrophy (DMD) is a genomic disorder characterized by progressive muscle wasting and weakness due to the absence or abnormal function of dystrophin; a protein that protects muscle cells from mechanical induced stress during contraction. Mutations in the DMD gene, may lead to different clinical phenotypes, collectively known as dystrophinopathies, of which DMD has the earliest onset and most severe progression. Case report. We report a novel deletion of exons 24-41, predicted to maintain the reading frame and expected to result in a mild phenotype. Conversely, the patient has a severe DMD phenotype. Conclusions. Our report supports the hypothesis that disruption of the gamma-actin-binding site located in the central rod domain plays a crucial role in the shock absorber function of dystrophin in muscle cells. Description of pathogenic variants in the DMD gene and the resulting phenotypes has important implications on the designing of molecular therapeutic approaches for DMD (AU)


Subject(s)
Humans , Male , Muscular Dystrophy, Duchenne/genetics , Phenotype , Genotype , Actins/genetics , Binding Sites/genetics
5.
Rev Neurol ; 52(12): 720-4, 2011 Jun 16.
Article in Spanish | MEDLINE | ID: mdl-21594857

ABSTRACT

INTRODUCTION: Duchenne muscular dystrophy (DMD) is a genomic disorder characterized by progressive muscle wasting and weakness due to the absence or abnormal function of dystrophin; a protein that protects muscle cells from mechanical induced stress during contraction. Mutations in the DMD gene, may lead to different clinical phenotypes, collectively known as dystrophinopathies, of which DMD has the earliest onset and most severe progression. CASE REPORT: We report a novel deletion of exons 24-41, predicted to maintain the reading frame and expected to result in a mild phenotype. Conversely, the patient has a severe DMD phenotype. CONCLUSIONS: Our report supports the hypothesis that disruption of the gamma-actin-binding site located in the central rod domain plays a crucial role in the shock absorber function of dystrophin in muscle cells. Description of pathogenic variants in the DMD gene and the resulting phenotypes has important implications on the designing of molecular therapeutic approaches for DMD.


Subject(s)
Dystrophin/genetics , Dystrophin/metabolism , Genetic Association Studies , Genotype , Muscular Dystrophy, Duchenne/genetics , Mutation , Phenotype , Child , Child, Preschool , DNA Mutational Analysis , Humans , Infant
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