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Related Concept Videos

Myasthenia Gravis: Overview and Treatment01:20

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Myasthenia gravis is a neuromuscular transmission disorder characterized by weakness and increased fatigability of skeletal muscles. It is an autoimmune disease affecting approximately one in 2000 people, where antibodies against the α1 subunit of nicotinic acetylcholine receptors are produced.
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Myasthenia Gravis: Diagnostic Tests01:15

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Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
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Disorders of the Skeletal Muscle01:28

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The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
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Myocarditis I: Introduction01:21

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Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
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Chemical Synapses01:26

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Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
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Chemical Synapses01:26

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Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
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Detection of Anti-MDA5 Autoantibodies Using HeLa Cells and Immunocytochemistry with Light Microscopy
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Immune-Mediated Myopathies.

Namita A Goyal

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    Summary
    This summary is machine-generated.

    This review covers immune-mediated myopathies, including dermatomyositis and antisynthetase syndrome. Identifying myositis-specific autoantibodies aids in diagnosis and personalized treatment for better outcomes.

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    Area of Science:

    • Neurology
    • Rheumatology
    • Immunology

    Background:

    • Immune-mediated myopathies encompass dermatomyositis, antisynthetase syndrome, immune-mediated necrotizing myopathy, and overlap myositis.
    • Accurate diagnosis and classification are crucial for effective management.

    Observation:

    • Myositis-specific autoantibodies (MSAs) are key biomarkers for classifying autoimmune myopathies.
    • MSAs correlate with specific clinical phenotypes, extramuscular manifestations, and malignancy risk.

    Findings:

    • Subtypes of autoimmune myopathies exhibit varied muscle involvement severity and extramuscular features.
    • Histopathologic features and muscle imaging aid in accurate diagnosis.

    Implications:

    • Early diagnosis and subtype-specific immunotherapies improve patient prognosis.
    • Understanding MSAs allows for targeted treatment strategies in autoimmune myopathies.