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Diabetes Mellitus: Type 2 and Gestational01:22

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Updated: Jan 31, 2026

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
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Mitochondrial dysfunction in type 2 diabetes mellitus: an organ-based analysis.

Mark V Pinti1,2,3, Garrett K Fink1, Quincy A Hathaway1,2,4

  • 1Division of Exercise Physiology, West Virginia University School of Medicine , Morgantown, West Virginia.

American Journal of Physiology. Endocrinology and Metabolism
|January 3, 2019
PubMed
Summary

Type 2 diabetes (T2DM) involves mitochondrial dysfunction, impacting multiple organs due to hyperglycemia and insulin resistance. New research explores mitochondrial biology and targeted therapies to restore cellular balance in T2DM.

Keywords:
diabetes mellitusmitochondria dysfunction

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Area of Science:

  • Mitochondrial biology
  • Cellular metabolism
  • Systemic diseases

Background:

  • Type 2 diabetes mellitus (T2DM) is characterized by hyperglycemia, hyperlipidemia, and insulin resistance.
  • Mitochondrial dysfunction is a key pathological feature in T2DM, affecting energy substrate utilization and cellular pathways.
  • This dysfunction impacts vital functions in hepatocytes, cardiac and skeletal muscle, pancreatic beta-cells, and neurons.

Purpose of the Study:

  • To review mitochondrial dysfunction across major organ systems in T2DM.
  • To present novel research directions based on recent innovations in mitochondrial biology.
  • To discuss mitochondria-targeted therapeutics for restoring homeostasis in T2DM.

Main Methods:

  • Review of current literature on T2DM and mitochondrial biology.
  • Analysis of novel findings including mtDNA mutations, heteroplasmy, and epigenetic modifications.
  • Exploration of emerging therapeutic strategies targeting mitochondria.

Main Results:

  • Accumulation of mitochondrial DNA (mtDNA) mutations and copy number depletion contribute to T2DM prevalence.
  • Novel mechanisms like mtDNA heteroplasmy and ncRNA regulation are implicated in disease progression.
  • Mitochondrial dysfunction is observed across multiple organ systems, including the liver, heart, muscle, pancreas, and brain.

Conclusions:

  • Mitochondrial dysfunction is a central mechanism in T2DM pathogenesis across various organs.
  • Emerging areas in mitochondrial biology offer new insights into T2DM.
  • Mitochondria-targeted therapies hold promise for treating T2DM by restoring cellular homeostasis.