Figure 3.

Effects over enzyme activity (A) and monoaminergic neurotransmitter levels (B–D) (means ± SE, n = 5–10) in the whole body of the D. magna juveniles following 24 exposures to 1 mg/L of deprenyl. For clarity, monoaminergic neurotransmitters that showed a significant change across treatments are depicted. The rest of the values are provided in Table S3, Supplementary Materials. Note: * the indicated bars mean significant (p < 0.05) treatment differences relative to the controls following the Student’s t-test.