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At least 73 records · Page 4Linked to original sources
PubMed1975

The role of colon anaerobes in the metabolism of bile acids and steroids, and its relation to colon cancer.

The principle enzymes in the metabolism of both the substituent groups and the nucleus of the bile acids and of cholesterol are reviewed, together with their possible relevence to the etiology of large bowel cancer. Since the incidence of the disease appears to be related to the bile acid concentration and the activity of the 7-dehydroxylase and the delta4-dehydrogenase enzymes, the study of bile acids with a 4,6-dien-3-one structure is strongly recommended.

Anaerobiosis↗
PubMed1992

[Intracellular bile acid activities in colon cancer and normal colon mucosa].

Bile acids are thought to be involved in the etiology and development of colo-rectal cancers. In this study, the intracellular bile acid activities both in colo-rectal cancers and normal colo-rectal mucosa in 12 patients were measured with a new bile acid ion selective microelectrodes. The results demonstrated that bile acid activities of colo-rectal mucosa cells were 5.0 +/- 3.7 x 10(-5) mol/L and those in colo-rectal cancer cells were 17.6 +/- 9.6 x 10(-5) mol/L, which is three times as high. This demonstrates that bile acids are closely related to the development of colo-rectal cancers. The intracellular bile acid activities remain stationary with age and sex.

Adult↗
PubMed1978

[Intestinal amebiasis in children. I. Etiological study of colonic lesions of the rectosigmoid colon].

A total of 253 children from two months to 12 years old, who had diarrheic or dysenteric syndromes, were studied from the rectosigmoidoscopic and parasitologic points of view. In addition, 112 and 20 of these patients were also studied bacteriologically and virologically, respectively. Only in 28 patients torphozoites of Entamoeba histolytica were found by means of direct microscopic examination, staining techniques and amoebal cultures. Enteropathogenic bacteria were isolated in 41 of the 112 cases examined. No viral particles were detected in the 20 cases studied. From the discussion of these results, the conclusion is reached that the rectosigmoidal mucusal alterations which have been currently considered as suggesting amoebal lessions are not characteristic of invasive intestinal amebiasis in children.

Child↗