Abstract
The effect of intestinal colonization withBifidobacterium bifidum (Gram-positive anaerobic bacterium colonizing the intestine of healthy new-born mammals, exhibiting a probiotic effect, protecting the intestinal mucosa against colonization by pathogenic microflora) on enterocyte brush-border enzymes was examined in weaned 23-d- and in 2-month-old gnotobiotic inbred mice and compared with that in corresponding germ-free (GF) and conventional (CV) controls. The two groups of GF mice were associated with humanB. bifidum 11 d before the end of the experiment. Specific activity of enterocyte brush-border enzymes—lactase, alkaline phosphatase and γ-glutamyltranspeptidase was significantly higher in both age groups of GF mice in comparison with CV ones; on the other hand, sucrase and glucoamylase activities were higher in CV mice. Monoassociation withB. bifidum accelerates biochemical maturation of enterocytes resulting in a shift of specific activities of brush-border enzymes between the values found for GF and CV mice. This effect ofB. bifidum supplementation was less pronounced for alkaline phosphatase, sucrase, glucoamylase and dipeptidyl peptidase IV in immature gut of weaned mice than of 2-month-old ones.
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Kozáková, H., Řeháková, Z. & Kolínská, J. Bifidobacterium bifidum monoassociation of gnotobiotic mice: Effect on enterocyte brush-border enzymes. Folia Microbiol 46, 573–576 (2001). https://doi.org/10.1007/BF02818005
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DOI: https://doi.org/10.1007/BF02818005