Abstract
Our studies suggest that the beneficial anti-infective properties of yogurt could be attributed, at least partially, to the influence of the lactobacilli it contains on the host immune system. In vitro experiments conducted with human lymphocytes have shown that the addition of small quantities of yogurt is able to potentiate by 3-4 times the production and the release of Y-IFN by T lymphocytes stimulated with Con A. Bacterial adherence experiments have shown that lactobacilli bind spontaneously to CD4+ and CD8+ lymphocytes. In vivo, the addition of yogurt containing live strains of Lactobacillus bulgaricus and Streptococcus thermophilus to the standard murine diet, results after two weeks of treatment, in a different expression of the splenocyte surface antigens Thy1,2, Lyt1, Lyt2 as compared to the control group. From a functional point of view, the proliferative responses of the splenocytes to PHA, Con A and PWM were also increased significantly. With regard to Payer's patches, a significant increase in the mitogenic response of murine B lymphocytes to E. coli LPS was observed.
| Original language | English |
|---|---|
| Pages (from-to) | 279-284 |
| Number of pages | 6 |
| Journal | Advances in the Biosciences |
| Volume | 68 |
| Issue number | C |
| Publication status | Published - 1988 |
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Keywords
- diet
- host resistance
- immunocompetence
- immunopotentiation
- Lactobacilli
- yogurt
Cite this
Stimulation of host resistance by a diet supplemented with yogurt. / De Simone, C.; Jirillo, E.; Salvadori, B. Bianchi; Baldinelli, L.; Tzantzoglou, S.; Di Fabio, S.; Grassi, P. P.; Vesely, R.
In: Advances in the Biosciences, Vol. 68, No. C, 1988, p. 279-284.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Stimulation of host resistance by a diet supplemented with yogurt
AU - De Simone, C.
AU - Jirillo, E.
AU - Salvadori, B. Bianchi
AU - Baldinelli, L.
AU - Tzantzoglou, S.
AU - Di Fabio, S.
AU - Grassi, P. P.
AU - Vesely, R.
PY - 1988
Y1 - 1988
N2 - Our studies suggest that the beneficial anti-infective properties of yogurt could be attributed, at least partially, to the influence of the lactobacilli it contains on the host immune system. In vitro experiments conducted with human lymphocytes have shown that the addition of small quantities of yogurt is able to potentiate by 3-4 times the production and the release of Y-IFN by T lymphocytes stimulated with Con A. Bacterial adherence experiments have shown that lactobacilli bind spontaneously to CD4+ and CD8+ lymphocytes. In vivo, the addition of yogurt containing live strains of Lactobacillus bulgaricus and Streptococcus thermophilus to the standard murine diet, results after two weeks of treatment, in a different expression of the splenocyte surface antigens Thy1,2, Lyt1, Lyt2 as compared to the control group. From a functional point of view, the proliferative responses of the splenocytes to PHA, Con A and PWM were also increased significantly. With regard to Payer's patches, a significant increase in the mitogenic response of murine B lymphocytes to E. coli LPS was observed.
AB - Our studies suggest that the beneficial anti-infective properties of yogurt could be attributed, at least partially, to the influence of the lactobacilli it contains on the host immune system. In vitro experiments conducted with human lymphocytes have shown that the addition of small quantities of yogurt is able to potentiate by 3-4 times the production and the release of Y-IFN by T lymphocytes stimulated with Con A. Bacterial adherence experiments have shown that lactobacilli bind spontaneously to CD4+ and CD8+ lymphocytes. In vivo, the addition of yogurt containing live strains of Lactobacillus bulgaricus and Streptococcus thermophilus to the standard murine diet, results after two weeks of treatment, in a different expression of the splenocyte surface antigens Thy1,2, Lyt1, Lyt2 as compared to the control group. From a functional point of view, the proliferative responses of the splenocytes to PHA, Con A and PWM were also increased significantly. With regard to Payer's patches, a significant increase in the mitogenic response of murine B lymphocytes to E. coli LPS was observed.
KW - diet
KW - host resistance
KW - immunocompetence
KW - immunopotentiation
KW - Lactobacilli
KW - yogurt
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M3 - Article
VL - 68
SP - 279
EP - 284
JO - Advances in the Biosciences
JF - Advances in the Biosciences
SN - 0065-3446
IS - C
ER -