Target intelligence / Profile preview

β-Hydroxybutyrate (BHB)

Target
BHB
Molecular classification
Ketone body, Small molecule metabolite, GPCR agonist, HDAC inhibitor
01

Overview

β-Hydroxybutyrate (BHB) is an endogenous ketone body produced in the liver during periods of low glucose availability. It serves as an energy source and also functions as a signaling molecule by activating GPCRs (HCAR2, FFAR3), modulating ion channels, and inhibiting histone deacetylases (HDACs), leading to diverse effects on inflammation, neuronal function, and metabolism.

Other names
Beta-hydroxybutyric acid3-hydroxybutyric acid
02

Mechanism of action

Acts as an agonist of HCAR2 and FFAR3 receptors, modulates potassium channels, and inhibits HDACs.

03

Biological functions

Energy metabolismSignal transductionHistone modificationAnti-inflammatoryImmune regulation
04

Disease associations

EpilepsyNeurodegenerative diseaseInflammationCOVID-19Aging-related conditions
05

Safety considerations

Exogenous BHB salts: Potential electrolyte imbalances (sodium, magnesium, calcium)
06

Biomarkers

Blood BHB levels (for ketogenic diet efficacy in epilepsy)

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