Acetoacetate, acetone, and dibenzylamine (a contaminant in l-(+)-beta-hydroxybutyrate) exhibit direct anticonvulsant actions in vivo.
Level 5 - mechanism / opinion, no new human data
Preclinical animal model testing direct pharmacological effects in mice
PubMed 11952765 · doi:10.1046/j.1528-1157.2002.47901.x
What was done
Researchers evaluated the direct anticonvulsant effects of acetoacetate (ACA), acetone, and the D-(-) and L-(+) stereoisomers of beta-hydroxybutyrate (BHB) against sensory-evoked seizures in Frings audiogenic seizure-susceptible mice. Gas chromatography-mass spectrometry was used to analyze compound purity.
What was found
Acetoacetate and acetone showed anticonvulsant actions in this mouse model, whereas the physiological D-(-)-BHB isomer was not anticonvulsant. The anticonvulsant activity observed with L-(+)-BHB was found to be attributable to a chemical contaminant, dibenzylamine. The abstract reports no numerical values or effect sizes.
Why it matters
This study suggests that the seizure-protective effects of the ketogenic diet may be directly mediated by specific ketone bodies, namely acetoacetate and acetone, rather than D-(-)-beta-hydroxybutyrate.
Limits
The study was performed entirely in an audiogenic mouse model, which may not translate directly to human epilepsy. The abstract provides no sample sizes, dosages, statistical metrics, or quantitative results.
Cited by
- supports Acetone has anticonvulsant properties and contributes to seizure control.