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  • Title: [Milk protein digestion and lysosomal proteinases of the ileal mucosa in young rats].
    Author: Nikolaevskaia VR, Chernikov MP.
    Journal: Biull Eksp Biol Med; 1979 Oct; 88(10):393-5. PubMed ID: 497376.
    Abstract:
    The proteolytic activity of lysosomal and pancreatic proteinases was studied in the chyme and tissue homogenates of the jejunum and ileum of 12- and 30-day rats in order to elucidate whether lysosomal proteinases of the mucous membrane of the ileum participate in cavitary digestion. During milk feeding the proteolytic activity of acid (lysosomal) proteinases in the ileum was 3 times greater than in the jejunum, which has been demonstrated both for the mucous membrane and the contents of these parts of the small intestine. In rats on definitive nutrition the activity of acid proteinases from the jejunum and ileum remained almost unchanged both in the mucous membrane and in the contents. The data obtained also indicate that pancreatic proteinase absorbed from the chyme of the small intestine may participate in parietal digestion.
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