How does the gut-brain axis specifically transport butyric acid signals to regulate hippocampal histone acetylation?

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Description

The study demonstrates gut-brain communication affecting hippocampal HDAC4 and histone acetylation but doesn’t explain the transport mechanisms or signaling pathways involved. This knowledge gap limits understanding of how peripheral metabolites influence central nervous system epigenetics.

Gap type: unexplained_observation Source paper: Low expression of the intestinal metabolite butyric acid and the corresponding memory pattern regulate HDAC4 to promote apoptosis in rat hippocampal neurons. (2023, Ecotoxicology and environmental safety, PMID:36812872)

Evidence summary

Resolved by hypothesis h-var-08a4d5c07a: Gut Microbiome Remodeling to Prevent Systemic NLRP3 Priming in Neurodegeneration. Score: 0.907. Supporting PMIDs: 33875891, 30610225, 31748742, 27519954, 33741860.

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