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Impact of selected probiotic bacteria on juvenile host growth in gnotobiotic mouse model
Drgoňová, Veronika ; Janďourek, Ondřej (advisor) ; Konečná, Klára (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biological and Medical Sciences Study program: Pharmacy Author: Veronika Drgoňová Supervisor: PharmDr. Ondřej Janďourek, Ph.D. Consultant: Mgr. Martin Schwarzer, Ph.D. Title of diploma: Impact of selected probiotic bacteria on juvenile host growth in gnotobiotic mouse model This thesis expands understanding of the ability of Lactiplantibacillus plantarum WJL bacteria to support the growth of gnotobiotic hosts in models of chronic malnutrition. It was investigated whether other bacteria also have similar capabilities and whether these traits are species- and strain-specific. Strains of Bifidobacterium longum ssp. longum and Bifidobacterium adolescentis were tested in a gnotobiotic juvenile mouse model of chronic malnutrition and their impact on the host's somatotropic axis was monitored. Concurrently, it was analysed how malnutrition affects the bacteria in the host's gut and the level of its colonization. Germ-free C57BL/6J mice were mono-colonized via intragastric gavage with the aforementioned bacterial strains. The mice were mated after confirming stable colonization and F1 male offspring were weaned on the 21st day after birth onto an experimental diet with low protein and fat content. Their growth was monitored weekly by...

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