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Intestinal histology at 12 h after blood loss. Electroacupuncture (EA) at ST36 protected against intestinal injury after hemorrhagic shock and delayed fluid replacement, whereas EA at ST36 after vagotomy or injection of α-bungarotoxin eliminated such protection. Sections of distal ileum were harvested at 12 h after blood loss and stained with hematoxylin and eosin. All images are taken at × 200 magnification with black bar = 5 μm (3-5 animals per group at 12 h after blood loss).
