Abstract
The effect of a probiotic bacterium on gut function was studied in neonatal animals by using a model with suckling rats. Lactobacillus plantarum 299v (Lp299v) or saline (controls) was fed (3.0 × 106 CFU/g b.wt per day) for one week to rats aged either 3, 7 or 14 days, after which bacterial colonization, gut growth, and functional parameters were analyzed. In rats fed with Lp299v from 3 to 10 days of age, an increase in ceacal lactobacilli was correlated with reduced intestinal macromolecular permeability and increased mucosal protein compared to age-matched controls. Pups treated from 7 to 14 days of age showed a decrease in pancreas weight and protein content, whereas pups treated from 14 to 21 days of age showed little effect of the Lp299v treatment. The results indicated that the bacterial exposure affected the gut function, where the effects were age-related and the youngest rats appeared most sensitive.
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Abbreviations
- Lp299v:
-
Lactobacillus plantarum 299v
- BIgG:
-
Bovine IgG
- BSA:
-
Bovine serum albumin
- b.wt:
-
Body weight
- CFU:
-
Colony-forming units
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Acknowledgements
We wish to thank Mrs. Inger Mattsson for her expert technical assistance in analyzing the blood, intestinal, and pancreatic samples. The Swedish Research Council Formas is also acknowledged for financial support.
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Fåk, F., Ahrné, S., Linderoth, A. et al. Age-related Effects of the Probiotic Bacterium Lactobacillus plantarum 299v on Gastrointestinal Function in Suckling Rats. Dig Dis Sci 53, 664–671 (2008). https://doi.org/10.1007/s10620-007-9906-1
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DOI: https://doi.org/10.1007/s10620-007-9906-1