Figure 5: Brain expression of arginine vasopressin receptor 1B.

Avpr1b (arginine vasopressin receptor 1b) is known to be involved in the regulation of aggressive behaviour and brain cytokines changes. mRNA expression measured in the frontal cortex of (a) males (n=27, 11 CT, 12 AB, 4 AB/JB1) and (b) females (n=42, 17 CT, 13 AB, 12 AB/JB1; one-way ANOVA). Results are means±s.d. **P<0.01. AB, antibiotic; AB/JB1, antibiotic and L. rhamnosus JB-1; CT, control.