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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Effect of microbiota on the activity of HPA axis
 Fajstová, Alena ; Pácha, Jiří (advisor) ; Telenský, Petr (referee)
Recent research shows, that gut microbiome can influence various functions of the organism and is able to communicate with the brain. The data also show that changes in the composition of gut microbiome can influence behavior and stress reactions and vice versa, psychological state of the organism can cause changes in gut microbiome. The aim of this master's thesis was to examine changes of HPA activation and local metabolism of glucocorticoids caused by stress in the presence or absence of gut microbiome. We therefore used germ-free mice and studied the effect of stress in pituitary, adrenal gland, colon and spleen. We found that, stress has different impact on gene expression in adrenal gland, colon and spleen in the presence or absence of gut microbiome. In contrast, there wasn't any significant effect of stress on pituitary in germ free mice and their conventionaly colonized counterparts.
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