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Effects of THSG on tumor angiogenesis and the expression of proangiogenic factors in the colon tissue from AMO-exposed rats. Rat was given THSG with different concentrations (30, 150, or 250 mg/kg) for 6 weeks. The level of COX-2 (a), MMP-2 (b), and MMP-9 (c) protein was determined by western blot analysis with β-actin used as the internal control. Data represent the mean ± SE. ND represents normal group.
