Figure 7. Effect of LPS (0.83 mg/kg injected IP), relative to vehicle (VEH), on plasma concentrations of interleukin-6 as recorded 1 and 28 days after treatment under single and group housing conditions.

Trunk blood of CD1 (A) and C57BL/6 (B) mice for the interleukin-6 assay was taken 30 min after the FST had been started. The values are means+SEM, n = 7–8. ** P<0.05, *** P<0.01 versus vehicle-treated mice at the same time point post-treatment.