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Related Concept Videos

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Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
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Related Experiment Video

Updated: May 16, 2026

In Vivo Electrophysiological Measurement of Compound Muscle Action Potential from the Forelimbs in Mouse Models of Motor Neuron Degeneration
06:35

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Published on: June 15, 2018

[Developments in hereditary neuropathies].

O Dubourg1

  • 1Centre de référence des pathologies neuromusculaires de Paris-Est, groupe hospitalier Pitié-Salpêtrière, 47 boulevard de l'Hôpital, Paris cedex 13, France. odile.dubourg@psl.aphp.fr

Revue Neurologique
|November 17, 2012
PubMed
Summary
This summary is machine-generated.

Charcot-Marie-Tooth disease (CMT) is a group of inherited neuropathies with varied genetic and clinical features. Classification considers inheritance patterns and nerve conduction speeds, distinguishing demyelinating, intermediary, and axonal forms.

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In Vivo Electrophysiological Measurement of the Rat Ulnar Nerve with Axonal Excitability Testing
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Related Experiment Videos

Last Updated: May 16, 2026

In Vivo Electrophysiological Measurement of Compound Muscle Action Potential from the Forelimbs in Mouse Models of Motor Neuron Degeneration
06:35

In Vivo Electrophysiological Measurement of Compound Muscle Action Potential from the Forelimbs in Mouse Models of Motor Neuron Degeneration

Published on: June 15, 2018

In Vivo Electrophysiological Measurement of the Rat Ulnar Nerve with Axonal Excitability Testing
04:56

In Vivo Electrophysiological Measurement of the Rat Ulnar Nerve with Axonal Excitability Testing

Published on: February 6, 2018

Area of Science:

  • Neurology
  • Genetics
  • Clinical Medicine

Background:

  • Charcot-Marie-Tooth disease (CMT) encompasses a spectrum of inherited peripheral nervous system disorders.
  • These neuropathies exhibit diverse clinical presentations, electrophysiological findings, and genetic underpinnings.

Purpose of the Study:

  • To outline the classification system for hereditary sensorimotor neuropathies.
  • To differentiate CMT subtypes based on inheritance and electrophysiological characteristics.

Main Methods:

  • Classification based on mode of inheritance (autosomal dominant, X-linked dominant, autosomal recessive).
  • Categorization by electrophysiological parameters, specifically median nerve motor conduction velocity (demyelinating, intermediary, axonal).

Main Results:

  • Identified distinct classifications for purely motor forms (spinal CMT, hereditary distal motor neuropathy, distal spinal amyotrophy).
  • Included CMT with sensory, trophic, or dysautonomic features under hereditary sensory and autonomic neuropathies.

Conclusions:

  • CMT classification requires integration of genetic, clinical, and electrophysiological data.
  • Recognizing diverse CMT phenotypes is crucial for accurate diagnosis and management.