Long-Term Management and Monitoring of the Bladder After Spinal Cord Injury in a Rodent Model

Area of Science:

• Neuroscience
• Urology
• Animal Models

Background:

• Spinal cord injury (SCI) causes significant neurological deficits, notably impacting bladder function and patient quality of life.
• Current chronic animal models for SCI research are limited, hindering the development of effective therapeutic strategies.
• There is a critical need for reproducible and clinically relevant animal models to study SCI-induced bladder dysfunction.

Purpose of the Study:

• To present a detailed and reproducible protocol for a novel preclinical animal model of spinal cord injury (SCI) in female rats.
• To enable the investigation of both acute and chronic bladder dysfunction following SCI.
• To provide transparency regarding the challenges and optimizations in animal care for SCI research.

Main Methods:

• Development of a preclinical model in female rats with a mid-thoracic SCI contusion.
• Permanent implantation of a urinary catheter for repetitive bladder function measurements.
• Weekly urodynamic data collection from the same conscious animals over a six-month period.

Main Results:

• The study successfully established a reproducible SCI rat model allowing for longitudinal bladder function assessment.
• Clinically relevant urodynamic data were obtained seamlessly from the acute to the chronic phase in individual animals.
• This approach minimizes the number of experimental animals required and reduces inter-subject variability.

Conclusions:

• The developed rat model offers a valuable tool for studying SCI-related bladder dysfunction in both acute and chronic phases.
• This model enhances research efficiency by reducing animal numbers and improving data consistency.
• The protocol's reproducibility and detailed insights support future therapeutic intervention studies for SCI patients.