Fig. 2.

Effects of tryptophan supplementation on appetite and depression-like behavior in chronic stress mice

(A) Chronic stress experimental procedures and time-course tables related to behavioral tests (n = 10 mice per group); (B) Cumulative food intake at 21 days; (C) Changes in body weight at 21 days; (D) Center/total distance in the open field test (OFT); (C) Struggle time in the tail suspension test (TST); (F) Cumulative food intake; (G) weight; (H) Analysis of differences in cumulative daily food intake; (I) Daily weight variance analysis. Values are expressed as mean ± SEM. *P < 0.05, **P < 0.01. Significant differences between means values were determined by t-test.