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Germ-free Mice (GF Mice) / Germ-free Animal

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Mostly mice, born and reared in sterile environments from which no microbiota can be cultured

Germ-free (GF) mice are an important model system for understanding the impact of gut microbes on development and function of the nervous system
Warner et al. 2019a

Germ-free animals are animals kept in isolators in the absence of living microorganisms
Grigg & Sonnenberg 2017
Lagkouvardos et al. 2017 Gut Microbes 8(5): 493-503

However, the sterile state in itself is not fatal
Roy & Trinchieri 2017

Germ-free animals possess a reduced number of immune cells within their intestinal [lamina propria](brain://QhjO8KmUqE6DhUKNk8bLCQ/LaminaPro…