Effects of an acute administration of octadecylpropyl sulfamide (SUL10, 10 mg/kg) and GW6471 (GW, 1 mg/kg) on the number of Iba-1 positive cells induced by HI in the ipsilateral hippocampal areas. (A,C) In the CA1, a significant effect of lesion [F(1,50) = 402.4, p < 0.001], and interactions between antagonist and treatment [F(1,50) = 44.9, p < 0.001], antagonist and lesion [F(1,50) = 7.1, p < 0.01], and between antagonist, treatment and lesion [F(1,50) = 31.1, p < 0.001] were observed. (B,D) In the CA3, significant effects of lesion [F(1,50) = 270.2, p < 0.001], and interactions between antagonist and treatment [F(1,50) = 13.8, p < 0.001], antagonist and lesion [F(1,50) = 15.7, p < 0.001], and between antagonist, treatment and lesion [F(1,50) = 9.1, p < 0.01] were observed. Data represent mean + SEM cells per mm2 in VEH/VEH (n = 11 HI mice; n = 7 sham-operated), VEH/SUL10 (n = 9 HI mice; n = 8 sham-operated), GW/VEH (n = 6 HI mice; n = 6 sham-operated), GW/SUL10 (n = 5 HI mice; n = 7 sham-operated) treatment groups. The panels show representative images of Iba-1 expression in CA1 (C) and CA3 (D). Scale bar = 100 μm. p < 0.001 vs. sham-operated mice of the same group; p < 0.001 vs. VEH/VEH HI mice; ###p < 0.001 vs. VEH/SUL10 HI mice.