BDNF and Seizure: In patients with a TLE duration of less than 5 years, the BDNF concentration was higher compared with patients with a duration of epileptic seizures in the range of 10–20 years (30.4 [20.8; 30.4] ng/mL vs. 23.8 [19.8; 27.3] ng/mL), p = 0.025 by median test.