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Gene expression of iNOS in ileum of neonatal rats. 2% ethidium bromide stained agarose gel molecular marker (Kodak 1D) was used as an indicator. M: DNA marker DL2000; 0: Control group; 1: LPS 1 h; 2: LPS 3 h; 3: LPS 6 h; 4: LPS 12 h; 5: LPS 24 h.
