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Effects of panax notoginseng saponin on apoptosis in the colon tissues of rats. A: The number of apoptotic TUNEL-positive cells in rats from the four groups; B: Comparison among the four groups in Bax; C: Comparison among the four groups in Caspase-3; D: Comparison among the four groups in Bcl-2; E: Western blot protein map. aP < 0.05. PNS: Panax notoginseng saponin; DSS: Dextran sulfate sodium.
