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  4. Total flavonoids of hawthorn leaves protect spinal motor neurons via promotion of autophagy after spinal cord injury

Total flavonoids of hawthorn leaves protect spinal motor neurons via promotion of autophagy after spinal cord injury

Frontiers in Pharmacology, 2022 · DOI: 10.3389/fphar.2022.925568 · Published: August 22, 2022

Spinal Cord InjuryNeurologyGenetics

Simple Explanation

This study investigates the potential therapeutic effects of total flavonoids of hawthorn leaves (TFHL) on spinal cord injury (SCI). The study focuses on how TFHL can help spinal motor neurons (SMNs) recover and regenerate after an injury. The researchers used TFHL to treat rats with SCI for 7 days and examined the effects on their motor function, spinal cord tissue, and SMNs. They also conducted experiments on SMNs and astrocytes in a controlled lab environment to understand how TFHL affects these cells. The study found that TFHL improved motor function recovery in rats with SCI, promoted spinal cord tissue repair, reduced apoptosis (cell death), and improved the functional status of neurons. These findings suggest that TFHL could be a potential treatment for SCI by protecting SMNs and promoting their recovery.

Study Duration
7 days
Participants
45 Sprague-Dawley (SD) rats and 80 newborn SD rats
Evidence Level
Not specified

Key Findings

  • 1
    TFHL improved the neuromotor function recovery in rats after SCI, as assessed by BBB scoring.
  • 2
    TFHL significantly promoted injured spinal cord tissue repair, reduced apoptosis, and improved the functional status of neurons in spinal cord tissue in vivo.
  • 3
    TFHL promoted autophagy and related protein expression in vivo and vitro, suggesting a mechanism for neuroprotection.

Research Summary

The study investigated the neuroprotective effects of total flavonoids of hawthorn leaves (TFHL) on spinal motor neurons (SMNs) after spinal cord injury (SCI). TFHL was administered to rats with SCI, and the impact on motor function, tissue repair, and neuronal health was assessed. Results showed that TFHL improved motor function recovery, reduced apoptosis, and promoted spinal cord tissue repair in vivo. In vitro experiments further demonstrated that TFHL enhanced axonal regeneration and increased the secretion of neurotrophic factors by astrocytes. The study suggests that TFHL's neuroprotective effects are mediated by promoting autophagy and related protein expression, highlighting its potential as a therapeutic agent for SCI.

Practical Implications

Therapeutic Potential

TFHL could be explored as a potential therapeutic agent for spinal cord injury due to its neuroprotective properties.

Autophagy Modulation

The study highlights the importance of autophagy modulation as a therapeutic strategy for SCI.

Combination Therapy

Combining TFHL with other therapies targeting neurotrophic factor secretion and axonal regeneration may enhance recovery outcomes after SCI.

Study Limitations

  • 1
    Lack of a positive control group for comparison with clinically used SCI treatments.
  • 2
    Limited scope of in vitro experiments, mainly focusing on neurotrophic factor content.
  • 3
    Focus on SMNs, which are highly differentiated and have short survival times, limiting the depth of research.

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