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Li YL, Wen JJ, Wen YB, He XF, Wu JW, Li YW, Han ZJ, Feng JJ, Yan SH, Li SL, Heesakkers JP, Gao WS, Wen JG. Reconstruction of bladder function and prevention of renal deterioration by means of end-to-side neurorrhaphy in rats with neurogenic bladder. Neurourol Urodyn 2017; 37:1272-1280. [PMID: 29160569 DOI: 10.1002/nau.23456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/19/2017] [Indexed: 01/28/2023]
Abstract
AIMS To investigate the feasibility of restoring bladder function and prevention of renal deterioration by neurorrhaphy in rats with neurogenic bladder (NB). METHODS Forty-two rats were assigned to the end-to-side nerve coaptation group (ECG, n = 16), no nerve coaptation group (NCG, n = 16), and control group (CG, n = 10). In the ECG, the left ventral root (VR) and dorsal root (DR) of L6 and S1 were transected, and the distal stump of L6VR was sutured to the lateral face of L4VR. In the NCG, the left VR and DR of L6 and S1 were transected, but coaptation was not performed. In the CG, no operation was performed. Nerve regeneration, bladder function, and renal function were evaluated by FluoroGold (FG) retrograde tract tracing, cystometry, electrical stimulation, MRI, histology and biochemical assays. RESULTS In the ECG, FG-labeled neurons were observed in the left ventral horn of L4 spinal cord. There was a significant increase in intravesical pressure upon stimulation of the left L4VR proximal to the coaptation. Maximum cystometric capacity, post-void residual urine, bladder compliance and weight, serum creatinine, blood urea nitrogen, and fibrotic area of bladder and kidney were lower in the ECG than in the NCG, but higher than the CG. Hydronephrosis was noticed in ECG and NCG rats. Maximum detrusor voiding pressure was higher in the ECG and CG than in the NCG. CONCLUSIONS End-to-side neurorrhaphy is a useful method for restoring bladder function and preventing renal injury in rats with NB.
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Affiliation(s)
- Yun Long Li
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Jian Jun Wen
- Emergency Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yi Bo Wen
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Xiang Fei He
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Jun Wei Wu
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Yan Wei Li
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Zhong Jiang Han
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Jin Jin Feng
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Shao Hua Yan
- Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
| | - Shou Lin Li
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, China
| | - John Pfa Heesakkers
- Department of Urology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Wan Sheng Gao
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jian Guo Wen
- Pediatric Urodynamic Centre, Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key-Disciplines Laboratory Clinical-Medicine Henan, Zhengzhou, China
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