Neurogenic Inflammation of Guinea-Pig Bladder

Capsaicin, substance P, and ovalbumin, instilled into the bladders of naive and ovalbumin (OVA) sensitized guineapigs caused inflammation, as indicated by increased vascular permeability. Histological changes after exposure to these compounds progressed with time from intense vasodilatation to margi...

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Main Authors: D. E. Bjorling, M. R. Saban, R. Saban
Format: Article
Language:English
Published: Wiley 1994-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/S0962935194000268
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author D. E. Bjorling
M. R. Saban
R. Saban
author_facet D. E. Bjorling
M. R. Saban
R. Saban
author_sort D. E. Bjorling
collection DOAJ
description Capsaicin, substance P, and ovalbumin, instilled into the bladders of naive and ovalbumin (OVA) sensitized guineapigs caused inflammation, as indicated by increased vascular permeability. Histological changes after exposure to these compounds progressed with time from intense vasodilatation to marginalization of granulocytes followed by interstitial migration of leukocytes. In vitro incubation of guinea-pig bladder tissue with substance P and ovalbumin stimulated release of prostaglandin D2 and leukotrienes. In vitro incubation of bladder tissue with capsaicin, OVA, prostaglandin D2, leukotriene C4, histamine, or calcium ionophore A-23587 all stimulated substance P release. These data suggest that bladder inflammation initiated by a variety of stimuli could lead to a cyclic pattern of release of inflammatory mediators and neuropeptides, which could result in amplification and persistence of cystitis after the inciting cause has subsided.
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series Mediators of Inflammation
spelling doaj-art-99780f25fb4646a5ab9607587fe73fcb2025-08-20T03:37:03ZengWileyMediators of Inflammation0962-93511466-18611994-01-013318919710.1155/S0962935194000268Neurogenic Inflammation of Guinea-Pig BladderD. E. Bjorling0M. R. Saban1R. Saban2Smooth Muscle Laboratory, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI, USASmooth Muscle Laboratory, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI, USASmooth Muscle Laboratory, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI, USACapsaicin, substance P, and ovalbumin, instilled into the bladders of naive and ovalbumin (OVA) sensitized guineapigs caused inflammation, as indicated by increased vascular permeability. Histological changes after exposure to these compounds progressed with time from intense vasodilatation to marginalization of granulocytes followed by interstitial migration of leukocytes. In vitro incubation of guinea-pig bladder tissue with substance P and ovalbumin stimulated release of prostaglandin D2 and leukotrienes. In vitro incubation of bladder tissue with capsaicin, OVA, prostaglandin D2, leukotriene C4, histamine, or calcium ionophore A-23587 all stimulated substance P release. These data suggest that bladder inflammation initiated by a variety of stimuli could lead to a cyclic pattern of release of inflammatory mediators and neuropeptides, which could result in amplification and persistence of cystitis after the inciting cause has subsided.http://dx.doi.org/10.1155/S0962935194000268
spellingShingle D. E. Bjorling
M. R. Saban
R. Saban
Neurogenic Inflammation of Guinea-Pig Bladder
Mediators of Inflammation
title Neurogenic Inflammation of Guinea-Pig Bladder
title_full Neurogenic Inflammation of Guinea-Pig Bladder
title_fullStr Neurogenic Inflammation of Guinea-Pig Bladder
title_full_unstemmed Neurogenic Inflammation of Guinea-Pig Bladder
title_short Neurogenic Inflammation of Guinea-Pig Bladder
title_sort neurogenic inflammation of guinea pig bladder
url http://dx.doi.org/10.1155/S0962935194000268
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