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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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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...
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Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
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AAN guidelines: a benefit to the neurologist.

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Practice parameter update: the care of the patient with amyotrophic lateral sclerosis: drug, nutritional, and respiratory therapies (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology.

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Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
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Guillain-Barré syndrome.

J D England1

  • 1Department of Neurology, University of Colorado Health Sciences Center, Denver 80262.

Annual Review of Medicine
|January 1, 1990
PubMed
Summary

Guillain-Barré syndrome, an acute inflammatory neuropathy, causes paralysis. Early diagnosis and treatment, including plasmapheresis, are crucial for reducing severity and speeding recovery.

Area of Science:

  • Neurology
  • Immunology
  • Neuroscience

Background:

  • Guillain-Barré syndrome is an acute inflammatory demyelinative neuropathy.
  • It typically manifests as symmetric areflexic paralysis.
  • An immunologic pathogenesis is strongly suspected.

Purpose of the Study:

  • To highlight the importance of early diagnosis in Guillain-Barré syndrome.
  • To emphasize the benefits of supportive care and plasmapheresis.

Main Methods:

  • This abstract does not detail specific methods.
  • Focuses on clinical presentation and management principles.

Main Results:

  • Early diagnosis is critical for effective management.

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  • Supportive care and plasmapheresis can significantly reduce morbidity.
  • These interventions can also hasten patient recovery.

    • Conclusions:

    • Prompt identification of Guillain-Barré syndrome is essential.
    • Aggressive supportive care and plasmapheresis improve patient outcomes.
    • Understanding the immunologic basis aids in treatment strategies.