Histone acetylation in brain neurons: molecular mechanisms & dependencies

How nutrients influence it

Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.

Human evidence only

How nutrients reach it in more than one step

Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.

Tracing routes…

What it does

Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.

Recorded relationships

What acts on it

A single oral dose of glyceryl triacetate increased the acetylation state of brain histone H4 at lysine 8 at 2 and 4 hours, histone H4 at lysine 16 at 4 and 24 hours, and histone H3 at lysine 9 at 4 hours, with no changes in other forms of brain or liver H3 and H4 acetylation state at any time measured.
Glyceryl triacetate, an oral acetate precursor → Histone acetylation in brain neurons source_derived_draftungraded
Experimental context and source evidence
evidence_span
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experimental_model
Time-course Western blot analysis of brain and liver histone acetylation in rats after a single oral dose
exposure
A single oral dose of 6 g/kg glyceryl triacetate, an acetate precursor
limitations
A large single dose of a precursor, not dietary acetate. The mechanism is loss of deacetylation rather than added acetylation, and only some marks moved.
nutrient_topic
Acetic acid research collection; topical membership is not evidence of a direct clinical effect, and the ingested acid is recorded separately from the circulating acetate anion. · Acetic acid
organism
Rat
plain_language
Three specific marks on brain histones went up for a few hours; the rest, and the liver, did not move.
primary_references
[acetate-p21359531] Acetate supplementation increases brain histone acetylation and inhibits histone deacetylase activity and expression. (2011). https://pubmed.ncbi.nlm.nih.gov/21359531/ DOI: 10.1007/s11010-011-0751-3
tissue_or_cell_type
Brain and liver
Acetic acid: the ingested acid, the receptors acetate binds, the acetyl-CoA it becomes, and the acetyl groups that reach histones (2026-09-21) · lines 654–665
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Time-course Western blot analysis of brain and liver histone acetylation in rats after a single oral dose · source_derived_draft · unverified_draft
### acetate-acetate-brain-histones A single oral dose of glyceryl triacetate increased the acetylation state of brain histone H4 at lysine 8 at 2 and 4 hours, histone H4 at lysine 16 at 4 and 24 hours, and histone H3 at lysine 9 at 4 hours, with no changes in other forms of brain or liver H3 and H4 acetylation state at any time measured. Condition category: normal nutrient_topic: Acetic acid research collection; topical membership is not evidence of a direct clinical effect, and the ingested acid is recorded separately from the circulating acetate anion. plain_language: Three specific marks on brain histones went up for a few hours; the rest, and the liver, did not move. organism: Rat tissue_or_cell_type: Brain and liver experimental_model: Time-course Western blot analysis of brain and liver histone acetylation in rats after a single oral dose limitations: A large single dose of a precursor, not dietary acetate. The mechanism is loss of deacetylation rather than added acetylation, and only some marks moved. exposure: A single oral dose of 6 g/kg glyceryl triacetate, an acetate precursor evidence_span: {"source_cache": "artifacts/acetate-research/21359531.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a60e30b6fa78f5fc4d9da17279ec1ecc29dd20939df5771ba26996900102014b", "start_char": 0, "end_char": 1456, "text_sha256": "a60e30b6fa78f5fc4d9da17279ec1ecc29dd20939df5771ba26996900102014b"} [acetate-p21359531] Acetate supplementation increases brain histone acetylation and inhibits histone deacetylase activity and expression. (2011). https://pubmed.ncbi.nlm.nih.gov/21359531/ DOI: 10.1007/s11010-011-0751-3
Complete structured claim and evidence
Using in vivo stable-isotope labelling in mice, the metabolism of alcohol contributed to rapid acetylation of histones in the brain, in part through direct deposition of acetyl groups derived from alcohol onto histones in an ACSS2-dependent manner, and a similar direct deposition was observed when mice were injected with heavy-labelled acetate in vivo.
Acetate derived from hepatic alcohol metabolism → Histone acetylation in brain neurons source_derived_draftungraded
Experimental context and source evidence
evidence_span
{"source_cache": "artifacts/acetate-research/31645761.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a7a812a410fd8be3bad8512ab46d4b8a7fd3329d1552ee30965b66860eeb2b2f", "start_char": 0, "end_char": 1646, "text_sha256": "a7a812a410fd8be3bad8512ab46d4b8a7fd3329d1552ee30965b66860eeb2b2f"}
experimental_model
In vivo stable-isotope labelling in mice, with primary hippocampal neurons and behavioural testing
exposure
Labelled alcohol or heavy-labelled acetate administered in vivo, with ACSS2 inhibition and deletion
limitations
Isotope labelling traces the actual carbon atoms onto histones, which is stronger than correlating acetylation with exposure. A mouse study; the fetal result is a single reported exposure.
nutrient_topic
Acetic acid research collection; topical membership is not evidence of a direct clinical effect, and the ingested acid is recorded separately from the circulating acetate anion. · Acetic acid
organism
Mouse
plain_language
Atoms from the drink end up on the proteins that package DNA in the brain.
primary_references
[acetate-p31645761] Alcohol metabolism contributes to brain histone acetylation. (2019). https://pubmed.ncbi.nlm.nih.gov/31645761/ DOI: 10.1038/s41586-019-1700-7
tissue_or_cell_type
Brain and gestating fetus
Acetic acid: the ingested acid, the receptors acetate binds, the acetyl-CoA it becomes, and the acetyl groups that reach histones (2026-09-21) · lines 615–626
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · In vivo stable-isotope labelling in mice, with primary hippocampal neurons and behavioural testing · source_derived_draft · unverified_draft
### acetate-alcohol-to-brain-histones Using in vivo stable-isotope labelling in mice, the metabolism of alcohol contributed to rapid acetylation of histones in the brain, in part through direct deposition of acetyl groups derived from alcohol onto histones in an ACSS2-dependent manner, and a similar direct deposition was observed when mice were injected with heavy-labelled acetate in vivo. Condition category: normal nutrient_topic: Acetic acid research collection; topical membership is not evidence of a direct clinical effect, and the ingested acid is recorded separately from the circulating acetate anion. plain_language: Atoms from the drink end up on the proteins that package DNA in the brain. organism: Mouse tissue_or_cell_type: Brain and gestating fetus experimental_model: In vivo stable-isotope labelling in mice, with primary hippocampal neurons and behavioural testing limitations: Isotope labelling traces the actual carbon atoms onto histones, which is stronger than correlating acetylation with exposure. A mouse study; the fetal result is a single reported exposure. exposure: Labelled alcohol or heavy-labelled acetate administered in vivo, with ACSS2 inhibition and deletion evidence_span: {"source_cache": "artifacts/acetate-research/31645761.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a7a812a410fd8be3bad8512ab46d4b8a7fd3329d1552ee30965b66860eeb2b2f", "start_char": 0, "end_char": 1646, "text_sha256": "a7a812a410fd8be3bad8512ab46d4b8a7fd3329d1552ee30965b66860eeb2b2f"} [acetate-p31645761] Alcohol metabolism contributes to brain histone acetylation. (2019). https://pubmed.ncbi.nlm.nih.gov/31645761/ DOI: 10.1038/s41586-019-1700-7
Complete structured claim and evidence

The events it takes part in

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Situations it appears in

Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.

In the sources

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Open hypotheses

Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.

This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

Histone acetylation in brain neurons