求翻译：TNF-α、IL-1β、PGE2含量变化：与空白组比较，模型组大鼠造模第8天、第29天、第50天肺、结肠组织TNF-α、IL-1β、PGE2含量明显升高，有显著性差异（P是什么意思？

tnf-alpha, il-1β, pge2 content: Compared with blank group, model group were modeling eight days, 29 days, 50 days, lung, colon tissue tnf-alpha, il-1β, pge2 content of apparent l high, there are significant differences (p <0.01); eight days of modeling, the model rats modeling the first 29 days,

TNF-α, IL-1β, PGE2 content change: Compares with the blank group, the model group big mouse makes the mold 8th day, 29th day, the 50th day lung, the colon organization TNF-α, IL-1β, the PGE2 content obvious ascension, has the significance difference (P<0.01); With makes the mold 8th days to compa

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