2017, Number 2
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Arch Neurocien 2017; 22 (2)
Bidirectional communication of the intestinal microbiota in the development of the central nervous system and Parkinson's disease
Gómez CM, Morales GMR
Language: Spanish
References: 126
Page: 53-71
PDF size: 629.11 Kb.
ABSTRACT
The incidence of environmental factors during the period of greater
vulnerability of development can disrupt the programming of
neurodevelopment manifesting its harmful effects on the structure
and function of the brain. By an evolutionary process the intestinal
microorganisms keep a symbiotic relationship in the mammals, the
intestine of the newborn can be populated quickly and densely by
microorganisms that contributes to the development of the epithelial
barrier, intestinal homeostasis and innate immunity, this microbiota also
has effects on the function and development of other organs. During
neurodevelopment, the brain is sensitive to signals originating from the
intestinal microbiota and it has been shown that infections caused by
microorganisms in this period generate neurological disorders such as
autism and schizophrenia. Studies in rodents show that exposure to
Bifidobacterias infantis during neurodevelopment causes anxiety and
cognitive impairment.
Parkinson's disease (PD) is a α-synucleopathy affecting the braingastrointestinal
tract axis, generally neurodegenerative changes and
gastrointestinal symptoms precede the neuronal deterioration in
this disease, and in its onset the microbiota represents the pathway
of internal factors that generate dysregulation of the gastrointestinal
tract-brain axis, the association between intestinal dysbiosis and
neurological dysfunction suggests that modification of the intestinal
microbiota would provide a therapeutic option in PD.
The relationship between the gastrointestinal microbiota and the
signals modulating brain development and the hypothesis that the
pathological process of PD extends from the gastrointestinal tract to
the brain is the aim of this review.
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