Intestinal adsorption of triolein, Risa and d-xylose was determined before and after reduction of blood flow in the superior mesenteric artery. Absorption of d-xylose did not change, but absorption of triolein and Risa appeared to be slightly improved after arterial constriction, even if the artery was completely thrombosed. Enhancement in absorption of Risa and triolein was probably the result of extensive collateral formation around the constricted superior mesenteric artery.
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