Vasoconstrictor response to EFS.

<p>EFS-induced vasoconstriction in endothelium-intact (A) and endothelium-removed (B) mesenteric segments from control, breast feeding (BF) and after BF rats. Results (Mean±S.E.M.) were expressed as a percentage of the initial contraction elicited by KCl. ANOVA P<0.05 Control vs. BF; ANOVA P<0.05 BF vs. After BF in both endothelium intact (A) and endothelium-removed (B) arteries. *P<0.05 vs. control animals at each frequency; #P<0.05 vs. BF group at each frequency (Bonferroni test). n = 10 animals each group.