溃疡性结肠炎患者粪便菌群和乙状结肠黏膜菌群分析  被引量:6

Analysis of bacterial flora in faeces and mucosa of sigmoid colon in patients with ulcerative colitis

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作  者:褚源[2] 王巧民[1] 

机构地区:[1]安徽医科大学附属省立医院消化内科,合肥230001 [2]安徽省淮南东方医院集团总医院消化内科

出  处:《中华消化杂志》2015年第12期834-838,共5页Chinese Journal of Digestion

基  金:安徽省卫生厅医学科研课题(13zc031)

摘  要:目的探讨UC患者与健康对照者粪便菌群和乙状结肠黏膜菌群的差异,以及肠道菌群改变在UC发病中的可能作用及意义。方法以梭菌属、肠球菌属、乳杆菌属、双歧杆菌属及拟杆菌属、埃希菌属作为目标菌群,采用实时荧光定量PCR方法检测35例UC患者(活动期组20例、缓解期组15例)及20名健康体检者(健康对照组)的粪便标本及乙状结肠黏膜活组织检查标本中6种目标菌群的含量。采用两组独立样本t检验比较粪便菌群和乙状结肠黏膜相关菌群的差异;采用方差分析比较对照组、活动期组及缓解期组粪便和乙状结肠黏膜菌群的差异。结果健康对照组粪便菌群中梭菌属、拟杆菌属、肠球菌属、乳杆菌属含量分别为(10.94±0.29)、(12.42±0.39)、(8.73±0.84)、(9.05土0.35)lg拷贝/g,均高于乙状结肠黏膜[分别为(9.36±0.66)、(9.88±0.82)、(7.70±1.17)、(7.96±0.68)lg拷贝/g,t=9.83、12.51、3.20、6.35,P均〈o.05];埃希菌属含量低于乙状结肠黏膜[(8.03±1.02)lg拷贝/g比(8.91±0.52)lg拷贝/g,t=-3.44,P〈0.05];粪便菌群与乙状结肠黏膜菌群中双歧杆菌属含量差异无统计学意义[(9.54±0.79)lg拷贝/g比(9.42±0.98)lg拷贝/g,P〉o.05]。UC患者粪便菌群中梭菌属、拟杆菌属、肠球菌属、乳杆菌属、双歧杆菌属含量分别为(9.62±1.13)、(11.31±0.71)、(9.33±0.65)、(8.42±0.80)、(8.85±0.73)Ig拷贝/g,均高于乙状结肠黏膜[分别为(9.00±0.79)、(8.80士0.66)、(7.46±0.82)、(6.82±1.07)、(8.40±0.72),t=2.66、15.28、10.58、7.12、2.56,P均〈0.05];埃希菌属含量低于乙状结肠黏膜[(8.50±0.52)lg拷贝/g比(9.26±0.87)lg拷贝/g,t=-4.45,P〈0.05]。与健康对照组比较,活�Objective To explore the difference in bacterial flora loetween faeces and mueosa of sigmoid colon, the possible role and significance of microbiota alteration in the genesis of ulcerative colitis (UC). Methods Fusobacterium, Enterococcus, Lactobacillus, Bi fidobacteriurn, Bacteraides and Escherichia were selected as target bacteria colonies. The content of six target bacteria colonies in faeces and mucosa of sigmoid colon of 35 UC patients (20 active UC, and 15 UC in remission) and 20 health controls were detected by real-time fluorescent quantitative polymerase chain reaction (RT-PCR). Two independent samples t-test was performed to compare the differences in bacterial flora between faeces and mucosa of sigmoid colon. Variance analysis was used to compare the differences in bacterial flora among health controls group,active stage group and remission stage group. Results In health control group, the contents of Fusobacteriurn, 13acteroides, Enterococcus and Lactobacillus in faeces ((10. 94 ± 0. 29), (12.42±0.39), (8. 73±0.84), (9.05 ± 0. 35), respectively) were higher than those in the mucosa of sigmoid colon ((9.36±0.66), (9.88±0.82), (7.70±1.17) and (7.96±0.68), respectively, t=9.83, 12.51, 3.20 and 6.35, all P〈0.05). However, the content of Escherichia was lower in faeces than that in the mucosaofsigmoid colon ((8.03±1.02) lg copy/g vs (8.91±0.52) lg copy/g, t=-3.44, P〈 0.05). There was no difference in the content of Bifidobacterium between faeces and mucosa of sigmoid colon ((9. 54±0.79) lg copy/g vs (9.42±0.98) lg copy/g, P〈0.05). For UC patients, the contents of Fusobacteriurn, Bacteroides, Enterococcus, Lactobacillus and Bifidobacterium in faeces ( (9.62 ± 1.13), (11.31±0.71), (9.33±0.65), (8.42±0.80) and (8.85±0.73) lg copy/g, respectively) were higher than those in the mucosa of sigmoid colon ((9.00±0.79), (8.80±0.66), (7.46±0.82), (6.82±1.07) and (8.40±0.7

关 键 词:结肠炎 溃疡性 粪便菌群 黏膜相关菌群 实时荧光定量PCR 

分 类 号:R574.62[医药卫生—消化系统]

 

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