Ketogenic Diet and Epigenetic Mechanisms of Epileptogenesis (original) (raw)

Ketogenic Diet and Metabolic Therapies, 2022

Abstract

Approximately 60% of all epilepsy cases occur as a consequence of acute insults to the brain, such as traumatic brain injury, cerebrovascular insult, or infections. After an insult, the brain enters a period during which progressive neurobiologic alterations convert a non-epileptic brain into a brain capable of generating spontaneous and recurrent seizures, which are defined as epilepsy. The series of events is known as epileptogenesis. Epigenetic (DNA methylation) changes may affect several genes thought to represent risk factors for epilepsy; epigenetic changes are potentially reversible and may constitute a novel target for therapeutic intervention. DNA hypermethylation related to adenosine deficiency results in a vicious cycle associated with the onset of epileptogenesis and leading to chronic pharmacoresistant epilepsy. DNA hypermethylation is restored by the ketogenic diet (KD) via adenosine augmentation, a shift in the S-adenosylhomocysteine and S-adenosylmethionine homeostas...

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