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  • Title: Development of sucrase in the chick small intestine.
    Author: Matsushita S.
    Journal: J Exp Zool; 1985 Mar; 233(3):377-83. PubMed ID: 3919147.
    Abstract:
    Development of sucrase in the chick small intestine was studied biochemically and immunologically using antiserum prepared against purified chick intestinal sucrase. Sucrase activity was first detectable at 10 days of incubation and increased with age. After a transient drop at 20 days, the activity rapidly increased to the adult level. Immunodiffusion and polyacrylamide gel electrophoretic studies suggested that the sucrase of the embryonic and hatched chick intestines was identical except for a difference in the content of sialic acids. In immunofluorescence and immunoelectron microscopy, sucrase was found to appear on the luminal surface of epithelial cells at 8-10 days of incubation, soon after the start of morphological differentiation from an undifferentiated thick epithelium to a thin simple epithelium.
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