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Disorders of the Skeletal Muscle

Disorders of the Skeletal Muscle

The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...

Myasthenia Gravis: Diagnostic Tests

Myasthenia Gravis: Diagnostic Tests

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.
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...

Myasthenia Gravis ll: Pathophysiology

Myasthenia Gravis ll: Pathophysiology

The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...

Myasthenia Gravis: Overview and Treatment

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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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Alterations in Muscle Tone ll

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Related Experiment Video

Updated: May 16, 2026

Systemic Delivery of MicroRNA Using Recombinant Adeno-associated Virus Serotype 9 to Treat Neuromuscular Diseases in Rodents

Systemic Delivery of MicroRNA Using Recombinant Adeno-associated Virus Serotype 9 to Treat Neuromuscular Diseases in Rodents

Published on: August 10, 2018

Paraneoplastic neuromuscular disorders.

Lydia Sharp¹, Steven Vernino

¹Department of Neurology and Neurotherapeutics, UT Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9036, USA.

|December 11, 2012

Summary

Paraneoplastic neurological disorders are rare autoimmune conditions linked to cancer. Early recognition of these neuromuscular disorders and associated antibodies can lead to earlier cancer diagnosis and improved patient outcomes.

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Area of Science:

Neurology
Immunology
Oncology

Background:

Paraneoplastic neurological disorders are rare autoimmune conditions affecting the nervous system.
These disorders are associated with underlying cancers, often preceding cancer symptoms.

Purpose of the Study:

To review paraneoplastic neuromuscular disorders.
To highlight the importance of recognizing these conditions for early cancer detection.

Main Methods:

This study was conducted as a topic review.

Main Results:

Recognition of paraneoplastic neuromuscular disorders and associated antibodies is crucial.
Associated antibodies and appropriate screening modalities aid in early cancer diagnosis.

Conclusions:

Early diagnosis of cancer can be facilitated by recognizing paraneoplastic neuromuscular disorders.
Treatment of the underlying cancer and immunomodulation may improve clinical outcomes.