Disuse as cause of supersensitivity in the rat urinary bladder

J Ekström, Lars Malmberg

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Ureterostomia in situ was performed to reduce the nervous reflex activation of the bladders without concomitant hypertrophy. In muscle strips of these disused and non-hypertrophied bladders, supersensitivity to methacholine was demonstrated, which did not increase between 1 and 3 weeks. The supersensitivity did not increase further by combining urinary diversion with section of the preganglionic bladder nerves (decentralization). From the present results it may be concluded that in decentralized and hypertrophied bladders not only hypertrophy per se, previously studied (Ekstrom et al. 1985), but also loss of nerve impulse traffic (cf. urinary diversion) contribute to the development of supersensitivity.
Original languageEnglish
Pages (from-to)429-432
JournalActa Physiologica Scandinavica
Issue number3
Publication statusPublished - 1986

Subject classification (UKÄ)

  • Urology and Nephrology

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