The feca! bite acids were extracted from 21 patients with large bowel (colonic and rectal) cancer and 21 controls, and the bile acid composition and concentration were measured by gas chromatography. The total bile ac...The feca! bite acids were extracted from 21 patients with large bowel (colonic and rectal) cancer and 21 controls, and the bile acid composition and concentration were measured by gas chromatography. The total bile acid concentration and concentration of individual bile acids were not statistically different between colonic and rectal cancer. Bat the concentration and the percentage composition of secondary bile acids (deoxycholic and lithocholic acids) were significantly higher than that in controls. However the percentage composition of primary bile acids (cholic and chenocholic acids) were significantly lower than that in controls. The results suggest that incidence of large bowel cancer is closely related to the metabolism of fecal bile acids, and the etiology of colonic and rectal cancers may be the same.展开更多
文摘The feca! bite acids were extracted from 21 patients with large bowel (colonic and rectal) cancer and 21 controls, and the bile acid composition and concentration were measured by gas chromatography. The total bile acid concentration and concentration of individual bile acids were not statistically different between colonic and rectal cancer. Bat the concentration and the percentage composition of secondary bile acids (deoxycholic and lithocholic acids) were significantly higher than that in controls. However the percentage composition of primary bile acids (cholic and chenocholic acids) were significantly lower than that in controls. The results suggest that incidence of large bowel cancer is closely related to the metabolism of fecal bile acids, and the etiology of colonic and rectal cancers may be the same.
