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. 2021 Aug 5;11(8):792. doi: 10.3390/life11080792

Table 3.

Antidepressant drugs tested in zebrafish.

Antidepressant Drug Tested Dose and
Duration of Treatment
Tested
Zebrafish
Applied
Test
Effects Ref.
Amitriptyline 10 and 50 μg/L;
2-week exposure
Adult
subjects
NTT 50 μg/L: anxiolytic-like behavior, i.e., ↑ time spent in the upper part of the tank, ↓ transitions to the upper part of the tank, ↓ latency to enter the upper part of the tank; both doses: ↓ serotonin turnover and ↑ norepinephrine and dopamine levels in the brain [149]
1, 5, and 10 mg/L;
20 min exposure
Adult
subjects
NTT 1 and 5 mg/L: changes in behavior, i.e., ↑ time spent in the upper part of the tank, ↓ latency to enter the upper part of the tank; 10 mg/L: ataxic movements; 5 and 10 mg/L: ↑ 5-HIAA (5-hydroxyindoleacetic acid)/serotonin ratio in the brain [150]
1 mg/L;
20 min exposure
Adult
subjects
ZTI 1 mg/L: ↑ travelled distance and ↑ time of mobility [61]
Escitalopram 0.15 and 1.5 µg/L;
3-week exposure
Adult
subjects
Spontaneous swimming
behavior
Gender differences in behavioral responses: 1.5 µg/L in females: ↓ maximum swimming velocity and ↓ thigmotaxis; 1.5 µg/L in males: ↓ maximum swimming velocity [151]
Fluoxetine 0.01 mg/L;
7-day exposure
Adult
subjects
CUS + NTT In stressed subjects: restored swimming in the upper part of the tank, prevented increase in the cortisol level [100]
4.6 μM; 24 h exposure Larvae with grs357 mutation Spontaneous activity ↑ activity and ↓ the whole-body cortisol level [49]
0.8 μM;
4-day exposure
Adult subjects with grs357
mutation
NTT ↓ freezing duration and ↓ wall-avoidance behavior [102]
0.25 mg/L;
3 h exposure
Adult
subjects
NTT ↑ time spent in upper part of the tank
and ↓ freezing duration
[152]
10 mg/L;
3 min exposure
Adult
subjects
Open-field drop test ↓ bottom dwelling and ↑ time spent in the upper part of the tank [153]
Nortriptyline 0.01 mg/L;
7-day exposure
Adult
subjects
CUS + NTT In stressed subjects: restored swimming in the upper part of the tank, prevented increase in the cortisol level [100]
Sertraline 2, 10, and 15 mg/L;
20 min exposure
Adult
subjects
ZTI 10 and 15 mg/L: ↑ travelled distance
15 mg/L: ↑ mobility time
[61]
Venlafaxine + Melatonin 0.025 μg/mL + 1 μM;
7-day exposure
Adult
subjects
Reserpine-induced depression
(40 μg/mL, 7 days)
+ NTT
Reversed the reserpine-induced depressive phenotype, i.e., ↑ exploration, ↓ irregular movements, ↑ travelled distance in the upper part of the tank [97]

CUS—chronic unpredictable stress; NTT—novel tank test; ZTI—zebrafish tail immobilization.; ↑: increase; ↓: decrease