Table 2. Effects of duloxetine, naltrexone, and MPZP and naltrexone on water intake, total fluid intake, and preference [ethanol/supersac:total (E/S:T)] for sweetened alcohol solution by animals in the operant (experiment 2) alcohol binge group and supersac solution by supersac controls.
Water intake (ml) | Total fluid (ml) | Preference (E/S:T) | |
---|---|---|---|
Duloxetine | |||
Alcohol binge drinkers | |||
0 mg/kg | 0.88 ± 0.30 | 3.68 ± 0.47 | 0.70 ± 0.10 |
2 mg/kg | 0.43 ± 0.18 | 1.93 ± 0.42** | 0.72 ± 0.08 |
4 mg/kg | 0.33 ± 0.16 | 0.92 ± 0.34** | 0.57 ± 0.14 |
8 mg/kg | 0.01 ± 0.01 ** | 0.03 ± 0.03** | N/A |
Supersac controls | |||
0 mg/kg | 0.40 ± 0.10 | 21.30 ± 2.44 | 0.98 ± 0.00 |
2 mg/kg | 0.08 ± 0.04** | 9.84 ± 2.55** | 0.99 ± 0.00 |
4 mg/kg | 0.07 ± 0.03** | 7.43 ± 2.23** | 0.98 ± 0.01 |
8 mg/kg | 0.03 ± 0.02** | 0.74 ± 0.39** | 0.91 ± 0.06 |
Naltrexone | |||
Alcohol binge drinkers | |||
0 μg/kg | 1.30 ± 0.34 | 3.91 ± 0.36 | 0.68 ± 0.08 |
16 μg/kg | 1.29 ± 0.27 | 4.17 ± 0.54 | 0.67 ± 0.06 |
50 μg/kg | 1.33 ± 0.38 | 3.45 ± 0.42 | 0.63 ± 0.08 |
150 μg/kg | 1.12 ± 0.33 | 3.15 ± 0.41 | 0.66 ± 0.08 |
450 μg/kg | 0.93 ± 0.25 | 2.42 ± 0.34** | 0.62 ± 0.07 |
Supersac controls | |||
0 μg/kg | 0.22 ± 0.10 | 19.23 ± 2.30 | 0.99 ± 0.01 |
16 μg/kg | 0.23 ± 0.13 | 19.13 ± 1.43 | 0.98 ± 0.01 |
50 μg/kg | 0.09 ± 0.04 | 16.87 ± 1.70 | 1.00 ± 0.00 |
150 μg/kg | 0.24 ± 0.12 | 16.05 ± 1.93 | 0.98 ± 0.01 |
450 μg/kg | 0.14 ± 0.10 | 13.70 ± 1.79** | 0.99 ± 0.01 |
MPZP | |||
Alcohol binge drinkers | |||
0 mg/kg | 1.04 ± 0.16 | 3.00 ± 0.15 | 0.65 ± 0.05 |
5 mg/kg | 1.00 ± 0.43 | 3.18 ± 0.39 | 0.75 ± 0.08 |
10 mg/kg | 1.06 ± 0.29 | 3.58 ± 0.42 | 0.71 ± 0.06 |
20 mg/kg | 1.09 ± 0.26 | 3.80 ± 0.39 | 0.72 ± 0.07 |
Supersac controls | |||
0 mg/kg | 0.23 ± 0.08 | 22.18 ± 2.26 | 0.99 ± 0.00 |
5 mg/kg | 0.19 ± 0.08 | 21.62 ± 2.07 | 0.99 ± 0.01 |
10 mg/kg | 0.28 ± 0.06 | 22.29 ± 1.74 | 0.99 ± 0.00 |
20 mg/kg | 0.23 ± 0.07 | 21.96 ± 2.25 | 0.98 ± 0.01 |
P<0.01 relative to vehicle condition;
N/A indicates denominator (total fluid intake) was zero for many of the individual rats.