Abstract
The effects of intestinal resection on several intestinal parameters have been studied in the large intestine of rats one month after the surgical operation. The results show that both 50% and 80% distal small bowel resection increased net fluid absorption and mucosal permeability and caused expansion of the intercellular spaces of the large intestine. The increase in net fluid absorption was dependent upon the extent of the intestine removed. The cAMP and cGMP content of cecal and colonic mucosa were significantly reduced after jejunoilectomy. Changes in nucleotide levels were dependent on the length of the intestine resected. On the other hand, mucosa Na,K-ATPase specific activity was only increased in the cecum after 80% intestinal resection. The results are discussed in terms of adaptation to prevent diarrhea.
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