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Related Concept Videos

Nociception01:44

Nociception

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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

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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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Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

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Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
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Local Anesthetics: Mechanism of Action01:23

Local Anesthetics: Mechanism of Action

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Local anesthetics (LAs) block sensory and motor impulses by inhibiting the sodium channels on the nerve cell membranes. This induces temporary loss of sensation, relieving pain in a specific body area.
Local anesthetics are amphiphilic molecules consisting of a hydrophobic aromatic part linked to a hydrophilic group by an ester or amide linkage. They are weak bases and are usually available as salts, which increases their solubility and stability. Once administered, LAs exist in the body either...
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Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

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While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
447
Neurochemical Transmission: Sites of Drug Action01:26

Neurochemical Transmission: Sites of Drug Action

2.5K
Neurochemical transmission, the conduction of electrical impulses between neurons mediated by neurotransmitters, plays a vital role in various physiological processes. Autonomic drugs exert their effects by modulating neurotransmission within the autonomic nervous system. For instance, drugs such as hemicholinium block the precursor uptake necessary for synthesizing acetylcholine, an essential autonomic neurotransmitter. Following synthesis, neurotransmitters are stored in vesicles. Metyrosine...
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Related Experiment Video

Updated: Jul 15, 2025

Author Spotlight: Exploring Peripheral Mechanisms of Neuropathic Pain in Trigeminal Nerve Injury
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An Overview of the Mechanisms Involved in Neuralgia.

Bai-Wen Zhang1, Hao Dong1, Zhe Wu1

  • 1Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China.

Journal of Inflammation Research
|September 25, 2023
PubMed
Summary

Neuralgia causes chronic pain, with new research exploring inflammatory and ion channel mechanisms. Understanding these pathways may lead to novel treatments for neuralgia patients.

Keywords:
inflammatory mechanismsinnovative therapeutic approachesneuralgia

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Author Spotlight: Minimally Invasive Relief for Occipital Neuralgia at the Nuchal Line
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Area of Science:

  • Neuroscience
  • Pain Research
  • Inflammation Biology

Background:

  • Neuralgia is a prevalent condition causing chronic pain.
  • Traditional anti-inflammatory treatments have shown efficacy.
  • Emerging research reveals novel pain mechanisms beyond inflammation.

Purpose of the Study:

  • To review inflammatory mechanisms in neuralgia.
  • To explore the role of ion channels and synaptic proteins in neuralgia.
  • To suggest innovative therapeutic strategies based on recent findings.

Main Methods:

  • Literature review of inflammatory pathways in neuralgia.
  • Analysis of recent research on ion channels and synaptic proteins.
  • Discussion of interactions between identified mechanisms.

Main Results:

  • Inflammatory mechanisms are central to neuralgia.
  • Ion channels and synaptic proteins significantly influence neuralgia.
  • Interactions between these factors offer therapeutic targets.

Conclusions:

  • Novel therapeutic approaches for neuralgia can be developed.
  • Further research into ion channels and synaptic proteins is warranted.
  • Integrated understanding of pain mechanisms is key for neuralgia management.