Fig. 1
From: Regulation of serotonin production by specific microbes from piglet gut
Effects of antibiotic intervention on 5-HT concentration and Lactobacillus quantities in the colon of pigs. The effect of antibiotics on 5-HT concentration (A), 5-HT pathway gene expression (B), and quantities of specific Lactobacillus species (C). All values are expressed as mean ± SEM. n = 5 per group. The Student's t-test was performed between two groups while asterisks mean statistically significant difference: *P < 0.05. D The correlation analysis between 5-HT concentration and Lactobacillus quantities. The rho values showed the correlation between serotonin and Lactobacillus amylovorus based on Spearman’s correlation. TPH1: Tryptophan hydroxylase 1; Maoa: Monoamine oxidase A; 5-HT1B: 5-Hydroxytryptamine receptor 1B; 5-HT2AR: 5-Hydroxytryptamine receptor 2A; 5-HT2BR: 5-Hydroxytryptamine receptor 2B