Abstract
BackgroundProviding ketone bodies to the brain can bypass metabolic blocks to glucose utilization and improve function in energy-starved neurons. For this, plasma ketones must be elevated well above the ≤0.2 mM default concentrations normally prevalent. Limitations of dietary methods currently used to produce therapeutic hyperketonemia have stimulated the search for better approaches. MethodDescribed herein is a new way to produce therapeutic hyperketonemia, entailing prolonged oral administration of a potent ketogenic agent—ketone monoester (KME)—to a patient with Alzheimer's disease dementia and a pretreatment Mini-Mental State Examination score of 12. ResultsThe patient improved markedly in mood, affect, self-care, and cognitive and daily activity performance. The KME was well tolerated throughout the 20-month treatment period. Cognitive performance tracked plasma β-hydroxybutyrate concentrations, with noticeable improvements in conversation and interaction at the higher levels, compared with predose levels. ConclusionKME-induced hyperketonemia is robust, convenient, and safe, and the ester can be taken as an oral supplement without changing the habitual diet.
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