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  4. Initiation of Bladder Voiding with Epidural Stimulation in Paralyzed, Step Trained Rats

Initiation of Bladder Voiding with Epidural Stimulation in Paralyzed, Step Trained Rats

PLoS ONE, 2014 · DOI: 10.1371/journal.pone.0108184 · Published: September 29, 2014

Spinal Cord InjuryUrologyNeurology

Simple Explanation

This study investigates whether epidural stimulation, which has been used to recover movement in paralyzed individuals, can also help restore bladder function after spinal cord injury. The researchers found that specific spinal cord stimulation parameters could initiate bladder emptying in paralyzed rats within seconds. This finding suggests that epidural stimulation could significantly improve the quality of life for patients with spinal cord injuries by helping them regain control over bladder function.

Study Duration
6 weeks
Participants
15 adult female Sprague Dawley rats
Evidence Level
Not specified

Key Findings

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    Enabling locomotor-related spinal neuronal circuits by epidural stimulation also influences neural networks controlling bladder function.
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    Specific spinal cord stimulation parameters, particularly 1 Hz stimulation between L2 and S1, can initiate bladder emptying within seconds of stimulation in paralyzed rats.
  • 3
    Step training under the influence of eEmc resulted in increased spontaneous bladder voiding, suggesting a positive effect on bladder function recovery.

Research Summary

This study demonstrates the potential of epidural stimulation to restore bladder function in paralyzed rats after spinal cord injury. The researchers identified specific stimulation parameters that can initiate bladder emptying on demand, offering a potential therapeutic strategy to improve the quality of life for individuals with spinal cord injuries. The findings highlight the functional links between the neural control of locomotion and micturition, suggesting that interventions targeting locomotor recovery can also positively impact bladder function.

Practical Implications

Clinical Application

Epidural stimulation could be a viable strategy to improve bladder control in patients with spinal cord injuries, reducing the need for catheterization and improving quality of life.

Therapeutic Development

The identified stimulation parameters can be used to develop targeted therapies for bladder dysfunction, potentially overcoming detrusor-sphincter dyssynergia.

Understanding Neural Circuits

Further research on the interaction between locomotor and bladder control circuits can lead to more comprehensive rehabilitation strategies for spinal cord injury patients.

Study Limitations

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