益生菌制劑對抗生素誘導(dǎo)腹瀉模型小鼠腸道菌群的恢復(fù)
[Abstract]:In order to evaluate the effect of probiotics on the recovery of intestinal flora in mice with diarrhea, the diarrhea model was established by gastric administration of 22.4 g / (kg d) ampicillin, in which the blank control group was given the same amount of normal saline. After successful modeling, the mice were treated with low, medium and high doses of probiotics. After 14 days of treatment, the effects of probiotics on dilute stool rate, dilute stool grade and diarrhea index were observed. The faeces of mice treated with aseptic therapy for 14 days were analyzed. Plate count and DGGE technique were used to detect the changes of intestinal flora. After the probiotics were stopped, the fecal samples of 0 ~ 7 ~ 14 days were used for quantitative detection of exogenous probiotics by fluorescence quantitative PCR. The results showed that probiotics could not only improve the diarrhea of mice and promote the growth of diarrhea mice, but also significantly restore the intestinal flora structure of diarrhea mice. Fluorescence quantitative PCR analysis showed that exogenous probiotics, Lactobacillus acidophilus NCFM, Lactobacillus acidophilus Bi-07 and Lactobacillus rhamnoides HN001 could colonize and survive after stopping gastric administration of probiotics, but tended to decrease with time.
【作者單位】: 無限極(中國)有限公司;上海交通大學(xué)農(nóng)業(yè)與生物學(xué)院;華南理工大學(xué)食品科學(xué)與工程學(xué)院;
【基金】:廣東省自然科學(xué)基金項目(2014A030313242) 中央高校科研業(yè)務(wù)費項目(2015ZZ110)
【分類號】:R-332;TS201.3
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