【摘要】 经纤维结肠镜取３０例大肠癌的癌灶粘膜行定性、定量厌氧菌培养。菌群分析显示类杆菌属和梭菌属检出率分别达７３．３％和８３．３％，其中脆弱类杆菌在类杆菌属中占５１．４％；产气荚膜梭菌在梭菌属中占３８．６％。较高的检出率表明这两种厌氧菌与大肠粘膜的关系较为密切，对大肠癌的致癌过程可能产生一定的影响。更多还原

【Abstract】 Cancerous mucosae obtained from 30 cases with large intestinal cancer through colonoscope were cultured for anaerobes qualitatively and quantitatively.Cultural rates of Bacteroides and Clostridium were 73.3%(22/30)and 83.3%(25/30),respectively. There were 51.4%(19/37)B.fragilis in Bacteroides and 38.6%(17/44)C.Perfrigens in Clostridium.Higher Cultural rate shows that the relationship between these two species of anaerobes and mucosa of large intestine was closed,which may play a definite role in carcinogenesis of large intestinal cancer.更多还原