肠内细菌

结论：七叶树皂苷Ia是前药，人肠内细菌和短乳杆菌粗酶能够转化七叶树皂苷Ia；

Conclusion : The results suggest that Escin Ia was a prodrug and its structure can be converted by human intestinal bacteria and Lactobacillus brevis .

草鱼肠内细菌数量为10~5－10~8CFU·g－1，分析后发现，各组草鱼肠内细菌数量之间没有显著差异（P＞0.05）。

The number of the intestinal bacteria was 10 ~ 5 - 10 ~ 8 CFU per gram ( wet weight of intestine plus contents ) and there was no significant difference ( P > 0.05 ) among the different grass carp groups .

甘草酸（glycyrrhizin，GL）是SGT中主要的有效配糖体成分之一，经口给药后，GL在肠道内被肠内细菌代谢成活性产物甘草次酸（18βGlycyrrheticacid，GA）。

Glycyrrhizin ( GL ) is a major active glycoside ingredient in SGT and is biotrans ˉ formed into a bioactive metabolite , 18 β - glycyrrhetic acid ( GA ), by intestinal bacteria in the gut after being orally administered .

山柰苷的人肠内细菌生物转化研究

The biotransformation of kaempferitrin by human intestinal flora

肠内细菌对天然药物的化学修饰

Chemical Modification of Natural Drug by Intestine Bacteria

方法：采用体外人肠内细菌粗酶与华蟾毒精和羟基华蟾毒精温孵法；

Methods : The cinobufagin and cinobufotalin were incubated with crude enzymes of human intestinal bacteria in vitro .

概述了目前国内外利用肠内细菌对天然药物进行生物化学修饰的研究进展情况。

This paper reported that the research progress of chemical modification of natural organic compound by intestine bacteria .

采用乌头碱和人肠内细菌体外温孵的方法，探讨乌头碱在肠内的生物转化规律。

To study the biotransformation of16-O-demethylaconitine in human intestine , aconitine was incubated with human intestinal bacteria in vitro .

肠内的细菌会对这种类型纤维大快朵颐。

Microbes in the gut chow down on this type of fiber .

各肠段内细菌总数高纤维组高于低纤维组（P<0.01），公鹅高于母鹅（P<0.05）。

The number of bacteria of the high fibre group was larger than that of the low fibre group ( P < 0.01 ), and that of gander was higher than goose ( P < 0.05 ) .

大肠杆菌（escherichiacoli.）是人和温血动物肠内普遍存在的细菌，可分为病原性大肠杆菌和非病原性大肠杆菌。

Escherichia coli ( E.coli ), a kind of common bacteria in the intestine of human beings and endotherm . It can be divided into two types : pathogenic and nonpathogenic Escherichia coli .

因它可抑制有害细菌于肠内的生长繁殖，而减少肠内有害细菌的数量；

Because it can suppress harmful bacteria in the intestines of the growth and reproduction , and reduce the number of harmful bacteria enteral ;

大量的细胞凋亡造成肠粘膜屏障功能受损，上皮细胞通透性增高，内毒素和肠内细菌移位。

A large amount of apoptosis lead to intestinal mucosal injury , increase of permeability of epithelium and translation of endotoxin and intestinal bacterium .