INVESTIGADORES
MALDONADO GALDEANO Maria Carolina
artículos
Título:
Effect of the administration of a fermented milk containing Lactobacillus casei DN-
Autor/es:
DE MORENO DE LEBLANC, ALEJANDRA; DOGI, CECILIA; MALDONADO GALDEANO, CAROLINA; CARMUEGA, ESTEBAN; WEILL, RICARDO; PERDIGÓN, GABRIELA.
Revista:
BMC Immunology
Referencias:
Año: 2008
ISSN:
1471-2172
Resumen:
Background. Microbial colonization of the intestine after birth is an important step for
the development of the gut immune system. The acquisition of passive immunity
through breast-feeding may influence the pattern of bacterial colonization in the
newborn. The aim of this work was to evaluate the effect of the administration of a
probiotic fermented milk (PFM) containing yogurt starter cultures and the probiotic
bacteria strain Lactobacillus casei DN-114001 to mothers during nursing or their
offspring, on the intestinal bacterial population and on parameters of the gut immune
system. Results. Fifteen mice of each group were sacrificed at ages 12, 21, 28 and 45
days. Large intestines were taken for determination of intestinal microbiota, and small
intestines for the study of secretory-IgA (S-IgA) in fluid and the study of IgA+ cells,
macrophages, dendritic cells and goblet cells on tissue samples. The consumption of the
PFM either by the mother during nursing or by the offspring after weaning modified the
development of bifidobacteria population in the large intestine of the mice. These
modifications were accompanied with a decrease of enterobacteria population. The
administration of this PFM to the mothers improved their own immune system and this
also affected their offspring. Offspring from mice that received PFM increased S-IgA in
intestinal fluids, which mainly originated from their mothers immune system. A
decrease in the number of macrophages, dendritic cells and IgA+ cells during the
suckling period in offspring fed with PFM was observed; this could be related with the
improvement of the immunity of the mothers, which passively protect their babies. At
day 45, the mice reach maturity of their own immune system and the effects of the PFM
was the stimulation of their mucosal immunity. Conclusions. The present work shows
the beneficial effect of the administration of a PFM not only to the mothers during the
suckling period but also to their offspring after weaning and until adulthood. This effect
3
positively improved the intestinal microbiota that are related with a modulation of the
gut immune response, which was demonstrated with the stimulation of the IgA + cells,
macrophages and dendritic cells.Microbial colonization of the intestine after birth is an important step for
the development of the gut immune system. The acquisition of passive immunity
through breast-feeding may influence the pattern of bacterial colonization in the
newborn. The aim of this work was to evaluate the effect of the administration of a
probiotic fermented milk (PFM) containing yogurt starter cultures and the probiotic
bacteria strain Lactobacillus casei DN-114001 to mothers during nursing or their
offspring, on the intestinal bacterial population and on parameters of the gut immune
system. Results. Fifteen mice of each group were sacrificed at ages 12, 21, 28 and 45
days. Large intestines were taken for determination of intestinal microbiota, and small
intestines for the study of secretory-IgA (S-IgA) in fluid and the study of IgA+ cells,
macrophages, dendritic cells and goblet cells on tissue samples. The consumption of the
PFM either by the mother during nursing or by the offspring after weaning modified the
development of bifidobacteria population in the large intestine of the mice. These
modifications were accompanied with a decrease of enterobacteria population. The
administration of this PFM to the mothers improved their own immune system and this
also affected their offspring. Offspring from mice that received PFM increased S-IgA in
intestinal fluids, which mainly originated from their mothers immune system. A
decrease in the number of macrophages, dendritic cells and IgA+ cells during the
suckling period in offspring fed with PFM was observed; this could be related with the
improvement of the immunity of the mothers, which passively protect their babies. At
day 45, the mice reach maturity of their own immune system and the effects of the PFM
was the stimulation of their mucosal immunity. Conclusions. The present work shows
the beneficial effect of the administration of a PFM not only to the mothers during the
suckling period but also to their offspring after weaning and until adulthood. This effect
3
positively improved the intestinal microbiota that are related with a modulation of the
gut immune response, which was demonstrated with the stimulation of the IgA + cells,
macrophages and dendritic cells.Lactobacillus casei DN-114001 to mothers during nursing or their
offspring, on the intestinal bacterial population and on parameters of the gut immune
system. Results. Fifteen mice of each group were sacrificed at ages 12, 21, 28 and 45
days. Large intestines were taken for determination of intestinal microbiota, and small
intestines for the study of secretory-IgA (S-IgA) in fluid and the study of IgA+ cells,
macrophages, dendritic cells and goblet cells on tissue samples. The consumption of the
PFM either by the mother during nursing or by the offspring after weaning modified the
development of bifidobacteria population in the large intestine of the mice. These
modifications were accompanied with a decrease of enterobacteria population. The
administration of this PFM to the mothers improved their own immune system and this
also affected their offspring. Offspring from mice that received PFM increased S-IgA in
intestinal fluids, which mainly originated from their mothers immune system. A
decrease in the number of macrophages, dendritic cells and IgA+ cells during the
suckling period in offspring fed with PFM was observed; this could be related with the
improvement of the immunity of the mothers, which passively protect their babies. At
day 45, the mice reach maturity of their own immune system and the effects of the PFM
was the stimulation of their mucosal immunity. Conclusions. The present work shows
the beneficial effect of the administration of a PFM not only to the mothers during the
suckling period but also to their offspring after weaning and until adulthood. This effect
3
positively improved the intestinal microbiota that are related with a modulation of the
gut immune response, which was demonstrated with the stimulation of the IgA + cells,
macrophages and dendritic cells.Results. Fifteen mice of each group were sacrificed at ages 12, 21, 28 and 45
days. Large intestines were taken for determination of intestinal microbiota, and small
intestines for the study of secretory-IgA (S-IgA) in fluid and the study of IgA+ cells,
macrophages, dendritic cells and goblet cells on tissue samples. The consumption of the
PFM either by the mother during nursing or by the offspring after weaning modified the
development of bifidobacteria population in the large intestine of the mice. These
modifications were accompanied with a decrease of enterobacteria population. The
administration of this PFM to the mothers improved their own immune system and this
also affected their offspring. Offspring from mice that received PFM increased S-IgA in
intestinal fluids, which mainly originated from their mothers immune system. A
decrease in the number of macrophages, dendritic cells and IgA+ cells during the
suckling period in offspring fed with PFM was observed; this could be related with the
improvement of the immunity of the mothers, which passively protect their babies. At
day 45, the mice reach maturity of their own immune system and the effects of the PFM
was the stimulation of their mucosal immunity. Conclusions. The present work shows
the beneficial effect of the administration of a PFM not only to the mothers during the
suckling period but also to their offspring after weaning and until adulthood. This effect
3
positively improved the intestinal microbiota that are related with a modulation of the
gut immune response, which was demonstrated with the stimulation of the IgA + cells,
macrophages and dendritic cells.Conclusions. The present work shows
the beneficial effect of the administration of a PFM not only to the mothers during the
suckling period but also to their offspring after weaning and until adulthood. This effect
3
positively improved the intestinal microbiota that are related with a modulation of the
gut immune response, which was demonstrated with the stimulation of the IgA + cells,
macrophages and dendritic cells.