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Bio Protoc. 2015;5(12). pii: e1504. Epub 2015 Jun 20.

Non-invasive Intratracheal Instillation in Mice.

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Department of Medicine, University of California, San Francisco, San Francisco, USA.


The intratracheal instillation technique is used to deliver a variety of agents to the lungs ranging from pathogens (bacteria, viruses), toxins, to therapeutic agents. To model lung inflammation and injury, LPS can be administrated via intranasal, intratracheal, or aerosol approaches. Each technique has its limitations. The intratracheal technique can involve the non-invasive instillation method (via the oro-tracheal route) or a direct injection into the trachea. Here, we describe an optimized method for direct visual instillation of LPS via the non-invasive oro-tracheal route.

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