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Related Concept Videos

Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Related Experiment Video

Updated: Jun 26, 2025

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing
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Cnicin promotes functional nerve regeneration.

Philipp Gobrecht1, Jeannette Gebel1, Marco Leibinger1

  • 1Center of Pharmacology, Institute for Pharmacology, Medical Faculty and University of Cologne, Paul-Schallück-Straße 8, Cologne 50937, Germany.

Phytomedicine : International Journal of Phytotherapy and Phytopharmacology
|May 8, 2024
PubMed
Summary

Cnicin, a compound from Cnicus benedictus, effectively promotes axon regeneration and functional recovery after nerve injury. It shows high oral bioavailability, offering a promising therapeutic potential for treating axonal insults.

Keywords:
Axon regenerationCnicinNerve injurySesquiterpene lactone

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Regenerative Medicine

Background:

  • Limited axon regeneration capacity impedes functional recovery post-nerve injury.
  • Current treatments lack drugs to accelerate axon regeneration.
  • Parthenolide shows potential but has poor oral bioavailability, limiting its use.

Purpose of the Study:

  • Investigate cnicin, a sesquiterpene lactone from Cnicus benedictus, for promoting axon regeneration.
  • Evaluate cnicin's efficacy compared to parthenolide.

Main Methods:

  • In vitro studies on sensory and CNS neurons from various species.
  • In vivo studies involving severe nerve injury models in different species.
  • Pharmacokinetic analysis of cnicin's bioavailability and half-life.
  • Assessment of functional recovery and axon regeneration following cnicin administration.

Main Results:

  • Cnicin demonstrated equal potency and effectiveness to parthenolide in nerve regeneration.
  • Cnicin promoted axon growth in cultured neurons and accelerated functional recovery after nerve injury.
  • Intravenous and oral administration of cnicin led to significant improvements in nerve repair and recovery.
  • Cnicin exhibited a favorable pharmacokinetic profile, including high oral bioavailability (84.7% in rats).

Conclusions:

  • Cnicin shows significant potential as a therapeutic agent for axonal insults.
  • Its ability to promote axon regeneration and functional recovery makes it a promising candidate for clinical application.
  • High oral bioavailability enhances its therapeutic prospects over existing options.