Table 1.

Effect of direct intra-BNST microinjections of 0.01, 0.02, or 0.2 nmol of N/OFQ or its vehicle (0.0) per site on food intake in rats deprived of food for 20 hr (n = 10) and in food-sated animals (n = 9)

Dose (nmol/site)
N/OFQ 0.0 0.01 0.02 0.21
Food deprived
t (30 min) 13.4 ± 0.5 13.4 ± 0.9 14.5 ± 0.7 14.9 ± 1.5
t (60 min) 20.9 ± 1.2 22.1 ± 1.3 22.1 ± 1.7 22.2 ± 2.9
Food sated
t (30 min) 0.3 ± 0.2 0.2 ± 0.2 0.2 ± 0.2 0.2 ± 0.2
t (60 min) 0.3 ± 0.2 0.3 ± 0.2 0.3 ± 0.2 0.2 ± 0.2
  • Access to food was given 30 min after N/OFQ injection, and food intake was measured after 30 and 60 min. Difference from controls was not significant. t, Time.