Methods 48 male Wistar rats were equally randomized into four groups:ANP group,rhubarb group(Rh group),early enteral nutrition group(EEN group)and EEN + rhubarb group(Com group).

• 方法48只雄性Wistar大鼠随机分为ANP组、生大黄组、EEN组及EEN联合生大黄组(联合组),每组12只。