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INNOVATIVE METHODOLOGY

An improved simple method of mouse lung intubation

Johns Hopkins Medical Institutions, Baltimore, Maryland

Submitted 10 October 2008 ; accepted in final form 12 January 2009

Given the ubiquitous use of mice to study lung disease, it is curious that more investigators do not use repeated intubation to study mechanical and cellular changes in individual mice. One of the reasons for this limited use of intubation is that it is relatively difficult, despite there being several published studies that describe ways to achieve it. In this paper, we describe a complete procedure, including novel approaches that simplify this intubation, so that it can be routinely accomplished with relatively little training. The technique can also be set up with relatively little expense and expertise. This should make it possible for any laboratory to routinely carry out this intubation, thereby allowing longitudinal studies in individual mice and potentially increasing the statistical power by using each mouse as its own control.

lung mechanics; broncoalveolar lavage; longitudinal studies; trachea