Abstract Title:

Prebiotics and probiotics as potential therapy for cognitive impairment.

Abstract Source:

Med Hypotheses. 2019 Sep 26 ;134:109410. Epub 2019 Sep 26. PMID: 31627123

Abstract Author(s):

Alejandra Romo-Araiza, Antonio Ibarra

Article Affiliation:

Alejandra Romo-Araiza


Cognitive functions, such as learning and memory, may be impaired during aging. Age-related cognitive impairment is associated with selective neuronal loss, oxidative changes that lead to microglia activation and neuroinflammation. In addition, it is associated to alteration reduction in trophic factors affecting neurogenesis and synaptic plasticity. In recent years, attention has been paid to the relationship between gut microbiota and brain. In aging, there is an alteration in microbiota, gut microbiota diversity is perturbed with an increase in pathogenic bacteria at the expense of beneficial ones. Dysbiosis may lead to chronic inflammation, and a decrease in bacteria metabolites such as short-chain fatty acids which have been related to an upregulation of neurotrophic factors. Supplementation with prebiotics and probiotics can modulate gut microbiota, returning it to a more physiological state; thus, they may be considered as a possible treatment for age-related cognitive impairment.

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