Figure 5: (a) Pro-BDNF, BDNF, and (b) pro-BDNF/BDNF ratio serum levels ± SEM in patients treated with H. erinaceus at T0, T1, and T2. p<0.05 indicates significant differences between different time versus T0 tested by paired Student’s t-test. The comparison of values between T1 and T2 does not show any statistically significant differences.