BDNF and metabolic syndrome: ELISA of brain BDNF concentrations (Figure 4c) showed 188.76 ± 23.70 pg/mL for MetS group, followed by CA (234.20 ± 8.47 pg/mL), SBH (274.86 ± 24.54 pg/mL), and Control (346.84 ± 34.19 pg/mL).