Open AccessDietary citrate supplementation enhances longevity, metabolic health, and memory performance through promoting ketogenesis
Author(s) -
Fan ShouZen,
Lin ChengSheng,
Wei YuWen,
Yeh ShengRong,
Tsai YiHsuan,
Lee Andrew Chengyu,
Lin WeiSheng,
Wang PeiYu
Publication year - 2021
Publication title -
aging cell
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.103
H-Index - 140
eISSN - 1474-9726
pISSN - 1474-9718
DOI - 10.1111/acel.13510
Subject(s) - ketogenesis , ampk , biology , longevity , citrate synthase , drosophila melanogaster , endocrinology , ketone bodies , amp activated protein kinase , metabolism , medicine , citric acid cycle , protein kinase a , kinase , biochemistry , genetics , enzyme , gene
Citrate is an essential substrate for energy metabolism that plays critical roles in regulating cell growth and survival. However, the action of citrate in regulating metabolism, cognition, and aging at the organismal level remains poorly understood. Here, we report that dietary supplementation with citrate significantly reduces energy status and extends lifespan in Drosophila melanogaster . Our genetic studies in fruit flies implicate a molecular mechanism associated with AMP‐activated protein kinase (AMPK), target of rapamycin (TOR), and ketogenesis. Mice fed a high‐fat diet that supplemented with citrate or the ketone body β‐hydroxybutyrate (βOHB) also display improved metabolic health and memory. These results suggest that dietary citrate supplementation may prove to be a useful intervention in the future treatment of age‐related dysfunction.