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Related Experiment Video

Updated: Oct 16, 2025

Author Spotlight: Establishing MASLD Cell Models for Investigating Disease Mechanisms and the Lipid-Lowering Effects of Koumiss
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Combined Metabolic Activators Decrease Liver Steatosis by Activating Mitochondrial Metabolism in Hamsters Fed with a

Hong Yang1, Jordi Mayneris-Perxachs2,3, Noemí Boqué4

  • 1Science for Life Laboratory, KTH Royal Institute of Technology, SE-17165 Stockholm, Sweden.

Biomedicines
|October 23, 2021
PubMed
Summary

Combined metabolic activators (CMA) effectively reduced fatty liver in hamsters by enhancing mitochondrial function and modulating key metabolic pathways. This offers promising therapeutic potential for non-alcoholic fatty liver disease (NAFLD).

Keywords:
NAFLDcombined metabolic activatorsmitochondrial metabolismtranscriptomics

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Area of Science:

  • Hepatology
  • Metabolic disease research
  • Mitochondrial function

Background:

  • Non-alcoholic fatty liver disease (NAFLD) prevalence is rising with no approved treatments.
  • Previous studies showed combined metabolic activators (CMA) reduced fatty liver in mice and increased fatty acid oxidation in humans.
  • The precise molecular mechanisms of CMA action in NAFLD remain unclear.

Purpose of the Study:

  • To investigate the molecular mechanisms of CMA in treating hepatic steatosis.
  • To evaluate the efficacy of chronic CMA supplementation in a hamster model of NAFLD.

Main Methods:

  • Chronic CMA supplementation (nicotinamide riboside, N-acetyl-l-cysteine, L-carnitine tartrate, betaine) in hamsters.
  • Generation of liver transcriptomics data.
  • Integration of transcriptomics with a liver-specific genome-scale metabolic model.

Main Results:

  • CMA supplementation significantly decreased hepatic steatosis in hamsters.
  • Transcriptomic analysis revealed CMA activates liver mitochondria.
  • Modulation of lipid, amino acid, antioxidant, and folate metabolism was observed.

Conclusions:

  • CMA treatment demonstrates significant benefits against NAFLD by enhancing mitochondrial activity.
  • The study elucidates key molecular pathways targeted by CMA, supporting its therapeutic potential.
  • Findings provide further evidence for CMA as a viable treatment strategy for NAFLD.