PMID: 1881137Sep 1, 1991Paper

Jejunal and ileal absorptive function after a model of canine jejunoileal autotransplantation

The Journal of Surgical Research
M G SarrA M Walters


The effects of intestinal transplantation on the physiologic functions of the gut are not well understood. Our aim was to determine the effect of a large animal model of small intestinal transplantation (disruption of all neural and lymphatic continuity) on selected absorptive functions of the jejunoileum. Seven dogs were studied before and at 1, 4, and 12 weeks after a model of jejunoileal autotransplantation, which avoids confounding factors of immune rejection, immunosuppression, and harvest ischemia. Jejunal function was assessed by quantitative [3H]-folate and D-xylose absorption and ileal function by quantitative 57Co-vitamin B12 absorption. The role of lymphatic continuity was assessed by fecal fat recovery following 5 days of a controlled, high fat diet (75 g/day). All dogs developed a profuse, watery diarrhea that persisted for 6 to 12 weeks and lost about 15% body weight; however, absorption of D-xylose, folate, and vitamin B12 was unaffected at any time point. Fat absorption postoperatively was only mildly abnormal (less than or equal to 8 g/day) at all time points in five of seven dogs despite complete lymphatic disruption. We concluded that jejunoileal autotransplantation does not markedly affect these specific jej...Continue Reading


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