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Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
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Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
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For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is...
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Mitochondrial dynamics in type 2 diabetes: Pathophysiological implications.

Susana Rovira-Llopis1, Celia Bañuls1, Noelia Diaz-Morales1

  • 1Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain.

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|January 29, 2017
PubMed
Summary
This summary is machine-generated.

Mitochondrial dynamics are crucial for cellular energy. Dysfunction in these processes, particularly fusion and fission, is linked to type 2 diabetes, impacting ATP levels and reactive oxygen species.

Keywords:
Mitochondrial dynamicsOxidative stressRedox biologyType 2 diabetes

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Area of Science:

  • Cellular Biology
  • Metabolic Disorders
  • Mitochondrial Dynamics

Background:

  • Mitochondria are vital for cellular metabolic homeostasis, exhibiting plasticity through fusion, fission, mitophagy, and biogenesis.
  • Type 2 diabetes is associated with mitochondrial dysfunction, increased reactive oxygen species (ROS), and reduced ATP production.

Purpose of the Study:

  • To review the molecular pathways of mitochondrial dynamics.
  • To examine the impairment of these pathways in type 2 diabetes.
  • To discuss pharmaceutical strategies targeting mitochondrial dynamics.

Main Methods:

  • Review of literature on mitochondrial dynamics and type 2 diabetes.
  • Analysis of molecular pathways involved in mitochondrial fusion, fission, and mitophagy.
  • Discussion of pharmacological agents affecting mitochondrial dynamics.

Main Results:

  • Mitochondrial fusion involves proteins like MFN1, MFN2, and OPA-1; fission involves FIS1, DRP1, and MFF.
  • PARKIN and PINK1 are key in mitophagy, a process requiring mitochondrial fission.
  • Impaired mitochondrial dynamics contribute to the pathophysiology of type 2 diabetes.

Conclusions:

  • Mitochondrial dynamics are complex and essential for cellular health.
  • Dysregulation of mitochondrial dynamics is a significant factor in type 2 diabetes.
  • Targeting mitochondrial dynamics presents potential therapeutic avenues for type 2 diabetes.