Table 2.
mRNA expression of μ-, κ-, and δ-opioid receptors in the VMH/ARC, LH, and PVN of animals that had ad libitum access to their diets or were food deprived for 24 h
| Brain Site | Mean | P Value | |
|---|---|---|---|
| μ-Opioid Receptors | |||
| Ad libitum | VMH/ARC | 0.77±0.12 | |
| Deprived | VMH/ARC | 1.05±0.17 | 0.26 |
| Ad libitum | LH | 1.33±0.13 | |
| Deprived | LH | 1.66±0.08 | 0.14 |
| Ad libitum | PVN | 1.75±0.33 | |
| Deprived | PVN | 1.74±0.21 | 0.98 |
| κ-Opioid Receptors | |||
| Ad libitum | VMH/ARC | 1.07±0.08 | |
| Deprived | VMH/ARC | 1.02±0.11 | |
| Ad libitum | LH | 0.64±0.06 | |
| Deprived | LH | 0.81±0.05 | 0.16 |
| Ad libitum | PVN | 0.44±0.11 | |
| Deprived | PVN | 0.32±0.09 | |
| δ-Opioid Receptors | |||
| Ad libitum | VMH/ARC | 1.25±0.18 | |
| Deprived | VMH/ARC | 1.74±0.11 | 0.05 |
| Ad libitum | LH | 1.05±0.04 | |
| Deprived | LH | 1.23±0.11 | 0.14 |
| Ad libitum | PVN | 0.49±0.13 | |
| Deprived | PVN | 0.62±0.12 | 0.57 |
Values are means ± SE. Gene expression of μ-, κ-, and δ-opioid receptors was not significantly different between the ad libitum and the food-deprived group.