Effect of muscarinic agonist on overflow incontinence induced by bilateral pelvic nerve transection in rats.
The effect of bethanechol, a muscarinic agonist, was studied by cystometrography in conscious rats with bilateral pelvic nerve (PN) lesions. In sham-operated rats, the transvesical infusion of saline elicited regularly micturition. The micturition was abolished by the bilateral PN transection, resulting in overflow incontinence. Bethanechol (30 mg/kg), administered orally to denervated rats, significantly increased the micturition frequency. Therefore, the micturition seems to be largely dependent upon muscarinic receptors of the bladder, and the finding supports the clinical effect of bethanechol. Moreover, this animal model may be useful for studying the overflow incontinence from detrusor failure of neuropathic origin.
Hirotsu
I
I
High Quality-Life Research Laboratories, Sumitomo Metal Industries, Ltd., Kyoto, Japan.
Hayano
C
C
Tani
T
T
D000284:Administration, Oral; D000818:Animals; D018723:Bethanechol / Q000494:pharmacology*; D003714:Denervation; D008297:Male; D018721:Muscarinic Agonists / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D001743:Urinary Bladder / Q000187:drug effects / Q000294:innervation / Q000502:physiology; D014549:Urinary Incontinence / Q000188:drug therapy* / Q000209:etiology
D018721:Muscarinic Agonists; D018723:Bethanechol