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Related Concept Videos

Nondepolarizing (Competitive) Neuromuscular Blockers: Mechanism of Action01:17

Nondepolarizing (Competitive) Neuromuscular Blockers: Mechanism of Action

Nondepolarizing neuromuscular blockers induce paralysis by competitively blocking nicotinic acetylcholine receptors at the muscle end plate. Examples include pancuronium, mivacurium, vecuronium, and rocuronium. These quaternary ammonium derivatives are administered intravenously, are poorly absorbed, and are excreted via the kidneys.
Competitive antagonists prevent acetylcholine from binding to its receptor, inhibiting membrane depolarization. Without conformational changes or intrinsic...
Neuromuscular Junction And Blockade01:29

Neuromuscular Junction And Blockade

The site of chemical communication between a motor neuron and a muscle fiber is called the neuromuscular junction (NMJ). The end of the motor neuron at the NMJ divides into a cluster of synaptic end bulbs. The cytoplasm of these bulbs consists of synaptic vesicles enclosing acetylcholine molecules, the principal neurotransmitter released at the NMJ. The region opposite the synaptic bulb that ends in the muscle fiber is called the motor end plate, which has acetylcholine receptors. Within the...

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Related Experiment Video

Updated: May 23, 2026

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons
09:54

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

Published on: July 14, 2021

Autonomic denervation using magnetic nanoparticles.

Youqi Fan1, Kenneth Dormer, Sunny S Po

  • 1Sir Run Run Shaw Institution of Clinical Medicine and Department of Cardiology, Sir Run Run Shaw Hospital Affiliated to Medical College of Zhejiang University, Hangzhou, China.

Trends in Cardiovascular Medicine
|March 22, 2012
PubMed
Summary
This summary is machine-generated.

Targeting cardiac ganglionated plexi with magnetic nanoparticles offers a novel approach for treating arrhythmias. This method avoids introducing further heterogeneity into the heart, unlike traditional therapies.

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Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles
08:26

Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles

Published on: October 19, 2015

Related Experiment Videos

Last Updated: May 23, 2026

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons
09:54

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

Published on: July 14, 2021

Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles
08:26

Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles

Published on: October 19, 2015

Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Cardiology

Background:

  • Nanoparticles offer versatile drug delivery due to unique properties.
  • Cardiovascular diseases pose challenges for targeted drug delivery.
  • Cardiac arrhythmias are sensitive to therapies that increase myocardial heterogeneity.

Purpose of the Study:

  • To explore targeting cardiac ganglionated plexi for arrhythmia treatment.
  • To propose magnetic nanoparticles for navigating to these plexi.
  • To offer an alternative to therapies targeting the arrhythmogenic myocardium.

Main Methods:

  • Review of nanoparticle applications in drug delivery.
  • Analysis of cardiac autonomic nervous system structure and function.
  • Investigation of magnetic nanoparticle navigation strategies.

Main Results:

  • Ganglionated plexi are discrete sites on the epicardial surface.
  • These plexi are key integration centers for cardiac autonomic control.
  • Magnetic nanoparticles can potentially be navigated to target these plexi.

Conclusions:

  • Targeting ganglionated plexi is a promising strategy for managing cardiac arrhythmias.
  • Magnetic nanoparticle navigation presents a viable method for precise delivery.
  • This approach may overcome limitations of traditional anti-arrhythmic therapies.