Key Signals Produced by Gut Microbiota Associated with Metabolic Syndrome, Cancer, Cardiovascular Diseases, and Brain...

Area of Science:

• Microbiology
• Neuroscience
• Immunology

Background:

• Gut microbiota produce signaling molecules impacting the central nervous system (CNS) via the Vagus nerve (VN).
• Short-chain fatty acids (SCFAs) interact with various receptors, influencing inflammation, gut motility, and brain functions.
• Specific receptors and peptides like Olfactory receptor OR51E1, GLP-1, and PrRP play roles in physiological and neurological processes.

Purpose of the Study:

• To review the impact of gut microbiota on cardiovascular diseases (CVDs), metabolic syndrome (MetS), cancer, and brain functions.
• To highlight the mechanisms by which gut microbiota-derived molecules influence host physiology and disease.
• To identify gaps in knowledge regarding the gut microbiome's role in cognitive behavior and neuropsychiatric disorders.

Main Methods:

• Literature review of preclinical and animal studies.
• Analysis of information from scientific repositories including PubMed, NIH, ScienceDirect, MDPI, Frontiers, Cell Press, and CAS Content Collection.
• Focus on signaling pathways involving SCFAs, G protein-coupled receptors (GPCRs), and inflammatory mediators.

Main Results:

• SCFAs modulate inflammatory responses, gut motility, and neurochemical signaling.
• Butyrate's interaction with NF-κB and PPARγ influences cytokine production and prevents oxidized low-density lipoprotein (ox-LDL) uptake, impacting cardiovascular health.
• Gut microbiota signaling pathways are implicated in metabolic syndrome, cancer, and brain function, though in-depth studies on cognitive and neuropsychiatric aspects are limited.

Conclusions:

• Gut microbiota significantly influence host health, including brain function and cardiovascular disease risk.
• Understanding these microbial-host interactions is crucial for developing novel therapeutic strategies for metabolic and neurological disorders.
• Further research is warranted to elucidate the complex mechanisms underlying the gut microbiome's influence on cognitive behavior and neuropsychiatric conditions.