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Early capsaicin intervention for neurogenic bladder in a rat model of spinal cord injury

Authors
 Catherine THOMAS  ;  Jang Hwan KIM  ;  Michael B. CHANCELLOR  ;  Naoki YOSHIMURA  ;  Pradeep TYAGI  ;  Yong Tae KIM  ;  Dong Deuk KWON  ;  Kazumasa TORIMOTO 
Citation
 BIOMEDICAL RESEARCH-TOKYO, Vol.28(5) : 255-259, 2007 
Journal Title
 BIOMEDICAL RESEARCH-TOKYO 
ISSN
 0388-6107 
Issue Date
2007
Abstract
We explored capsaicin pretreatment, prior to spinal trauma, as a method to prevent the development of neurogenic detrusor overactivity (NDO) and urethral-bladder dyssynergia reflex after spinal cord injury (SCI). In addition, the duration of effect of capsaicin therapy on NDO in a rat model of SCI was investigated. Two sets of experiments were performed on female Sprague Dawley rats transected at the T9-T10 spinal level. First, SCI rats received capsaicin (125 mg/kg s.q.) 3-4 days before and 4-5 days after SCI. Cystometrograms (CMG) was performed 4 weeks after injury. In the second set of experiments, serial CMG in the same SCI animal was performed after one time injection of capsaicin (125 mg/kg s.q.) 4 weeks after spinalization. There were no differences in intercontraction intervals, voiding efficiency, or voiding pressure between the capsaicin pretreated and control SCI rats. However, the number of uninhibited detrusor contractions decreased 4 weeks after injury. We found that a single dose of capsaicin suppressed uninhibited detrusor contractions for 34 days in the chronic SCI animals. Early therapy with capsaicin was able to prevent/reduce detrusor hyperreflexia in spinal cord injured animals 4 weeks after injury. Early vanilloid therapy may prevent development of urologic sequelae after SCI.
Files in This Item:
T200701451.pdf Download
DOI
10.2220/biomedres.28.255
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jang Hwan(김장환) ORCID logo https://orcid.org/0000-0002-9056-7072
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/95720
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