Figure 1.
Stress increases anxiety levels. A, All animals were subjected to psychological stress for 7 consecutive days after endometriosis induction. HPT indicates hot plate test; HPTC, hot plate test cold; VFT, Von Frey filaments. B, Endo-stress animals had increased fecal pellet counts (**P < .01, ***P < .001 vs endo-no stress animals, ## P < .01, ### P < .001 vs sham-no stress animals). C, Endo-stress animals had increased levels of corticosterone during the first (# P < .05 vs sham-no stress animals) and day 4 of stress (**P < .01 vs endo-no stress animals, ## P < .01 vs sham-no stress animals), which decreased over time (n = 12 ± standard error of the mean [SEM]).