Development of an aerosol model of murine respiratory mycoplasmosis in mice.

Infection and Immunity
J K DavisG H Cassell

Abstract

Animal models of murine respiratory mycoplasmosis due to Mycoplasma pulmonis provide excellent opportunities to study respiratory disease due to an infectious agent. The purpose of the present study was to develop and characterize an aerosol model for the production of murine respiratory mycoplasmosis in mice. The exposure of mice for 30 min to aerosols generated with a DeVilbiss 45 nebulizer in a nose-only inhalation chamber consistently reproduced typical lesions. The chamber was operated with a nebulizer air flow of 5.3 liters/min at 5.0 lb/in and a diluting air flow of 20 liters/min, with the nebulizer containing 5 ml of a suspension of viable M. pulmonis organisms (a concentration between 6 X 10(5) to 6 X 10(10) CFU/ml). Infective aerosol particles of less than a 4.0-micron median aerodynamic diameter with a geometric standard deviation of approximately 2.0 reached the lungs and were evenly distributed among the different lung lobes. A minimum 1.5-log loss of viability in the M. pulmonis suspension was demonstrated. With the exception of the 50% lethal dose, all of the parameters previously established by intranasal inoculation could be examined with the aerosol model. The major advantages of the aerosol model were excelle...Continue Reading

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Citations

May 13, 2009·Molecular Microbiology·James M DaubenspeckKevin Dybvig
Apr 27, 2000·Journal of Bacteriology·X ShenK Dybvig
Dec 29, 2007·American Journal of Physiology. Lung Cellular and Molecular Physiology·Joseph P Mizgerd, Shawn J Skerrett
Aug 21, 2010·FEMS Microbiology Letters·Kevin DybvigWarren L Simmons
Jun 16, 2010·Infection and Immunity·Masaaki IwakiMotohide Takahashi
May 3, 2008·Molecular Microbiology·Christopher T FrenchKevin Dybvig
Sep 1, 1989·Journal of Bacteriology·K DybvigG H Cassell
Nov 1, 1987·Infection and Immunity·R F ParkerG H Cassell
Nov 1, 1991·Infection and Immunity·C T StadtländerG H Cassell
Feb 1, 1992·Infection and Immunity·M J Steffen, J L Ebersole
Aug 1, 1988·Infection and Immunity·M K DavidsonG H Cassell

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