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Alterations in plasma levels of nor-epinephrine (NE) at 20 h after radiation combined injury (RCI) with treatment by normal saline (Vehicle) or human ghrelin (Ghrelin) or sham operation (Sham). Data are presented as means ± SE (n = 6/group) and compared by ANOVA and Student-Newman-Keuls method: *P < 0.05 versus Sham group; #P < 0.05 versus Vehicle group.
