A bioenergetics systems evaluation of ketogenic diet liver effects

Appl Physiol Nutr Metab. 2017 Sep;42(9):955-962. doi: 10.1139/apnm-2017-0068. Epub 2017 May 17.

Abstract

Ketogenic diets induce hepatocyte fatty acid oxidation and ketone body production. To further evaluate how ketogenic diets affect hepatocyte bioenergetic infrastructure, we analyzed livers from C57Bl/6J male mice maintained for 1 month on a ketogenic or standard chow diet. Compared with the standard diet, the ketogenic diet increased cytosolic and mitochondrial protein acetylation and also altered protein succinylation patterns. SIRT3 protein decreased while SIRT5 protein increased, and gluconeogenesis, oxidative phosphorylation, and mitochondrial biogenesis pathway proteins were variably and likely strategically altered. The pattern of changes observed can be used to inform a broader systems overview of how ketogenic diets affect liver bioenergetics.

Keywords: bioenergetics; bioénergétique; foie; hepatocyte; hépatocyte; ketogenic diet; liver; mitochondria; mitochondrie; régime cétogène.

MeSH terms

  • Acetylation
  • Animals
  • Biomarkers / metabolism
  • Diet, Ketogenic* / adverse effects
  • Energy Metabolism*
  • Gene Expression Profiling
  • Gene Expression Regulation, Enzymologic*
  • Gluconeogenesis
  • Glycosylation
  • Liver / enzymology
  • Liver / metabolism*
  • Male
  • Mice, Inbred C57BL
  • Mitochondria, Liver / enzymology
  • Mitochondria, Liver / metabolism*
  • Mitochondrial Dynamics
  • Organelle Biogenesis
  • Oxidative Phosphorylation
  • Pilot Projects
  • Protein Processing, Post-Translational
  • Succinic Acid / metabolism
  • Up-Regulation

Substances

  • Biomarkers
  • Succinic Acid