[Enzymatic differentiation and absorptive capacity of the epithelium of small intestine macrocolonies].

Research into the activity of the enzymes invertase, gamma-amylase, alkaline phosphatase in the macrocolonies of the rat small intestine has shown that each macrocolony has stringently individual functional properties and the predominance of one of the enzymes. The data have been also obtained, indicating different rate of lysin and leucin absorption by the macrocolony epithelium of the small intestine. The results prove the existence of a definite functional differentiation of epitheliocytes (macrocolonies) arising from the same stem cell of the intestinal epithelium.