지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 9 - 19 (11page)
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초록· 키워드
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Purpose: To characterize the electromyographic activity of abdominal striated muscles during micturition in urethane-anesthetized female mice, and to quantitatively evaluate the contribution of abdominal responses to efficient voiding. Methods: Cystometric and multichannel electromyographic recordings were integrated to enable a comprehensive evaluation during micturition in urethane-anesthetized female mice. Four major abdominal muscle domains were evaluated: the external oblique, internal oblique, and superior and inferior rectus abdominis. To further characterize the functionality of the abdominal muscles, pancuronium bromide (25 μg/mL or 50 μg/mL, abdominal surface) was applied as a blocking agent of neuromuscular junctions. Results: We observed a robust activation of the abdominal muscles during voiding, with a consistent onset/offset concomitant with the bladder pressure threshold. Pancuronium was effective, in a dose-dependent fashion, for partial and complete blockage of abdominal activity. Electromyographic discharges during voiding were significantly inhibited by applying pancuronium. Decreased cystometric parameters were recorded, including the peak pressure, pressure threshold, intercontractile interval, and voiding duration, suggesting that the voiding efficiency was significantly compromised by abdominal muscle relaxation. Conclusions: The relevance of the abdominal striated musculature for micturition has remained a topic of debate in human physiology. Although the study was performed on anesthetized mice, these results support the existence of synergistic abdominal electromyographic activity facilitating voiding in anesthetized mice. Further, our study presents a rodent model that can be used for future investigations into micturition-related abdominal activity.
목차
등록된 정보가 없습니다.
참고문헌 (35)
참고문헌 신청
Fowler CJ / 2008 / The neural control of micturition / Nat Rev Neurosci 9:453~466
Cruz Y / 2005 / Sexually dimorphic micturition in rats: relationship of perineal muscle activity to voiding pattern / Am J Physiol Regul Integr Comp Physiol 289:R1307~R1318
Corona-Quintanilla DL / 2014 / The role of pelvic and perineal striated muscles in urethral function during micturition in female rabbits / Neurourol Urodyn 33:455~460
Shafik A / 2003 / Straining and its role in micturition / Urology 62:199~200
Cruz Y / 2006 / Abdominal muscle activity during voiding in female rats with normal or irritated bladder / Am J Physiol Regul Integr Comp Physiol 290:R1436~R1445
Cruz Y / 2005 / Sexually dimorphic micturition in rats: relationship of perineal muscle activity to voiding pattern / Am J Physiol Regul Integr Comp Physiol 289:R1307~R1318
Corona-Quintanilla DL / 2014 / The role of pelvic and perineal striated muscles in urethral function during micturition in female rabbits / Neurourol Urodyn 33:455~460
Shafik A / 2003 / Straining and its role in micturition / Urology 62:199~200
Cruz Y / 2006 / Abdominal muscle activity during voiding in female rats with normal or irritated bladder / Am J Physiol Regul Integr Comp Physiol 290:R1436~R1445
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