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New perspectives in diabetic neuropathy.

Stephanie A Eid1, Amy E Rumora2, Bogdan Beirowski3

  • 1Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA; NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, MI 48109, USA.

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Type 2 diabetes (T2D) leads to diabetic peripheral neuropathy (DPN) through impaired nerve metabolism. This review explores how hyperglycemia, obesity, and dyslipidemia contribute to DPN

Keywords:
bioenergeticsdiabetesdyslipidemiahyperglycemiametabolic syndromemitochondriaobesitypathophysiologyperipheral neuropathyprediabetes

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Metabolic Diseases

Background:

  • Rising global prevalence of Type 2 Diabetes (T2D) and its complications.
  • Diabetic Peripheral Neuropathy (DPN) as a common microvascular complication of T2D.
  • DPN characterized by length-dependent peripheral nerve damage and distal-to-proximal symptomatology.

Purpose of the Study:

  • To review the pathogenesis of DPN, focusing on impaired metabolism and bioenergetics failure in peripheral nerves.
  • To elucidate the roles of hyperglycemia, obesity, and dyslipidemia in DPN development.
  • To discuss glia-axon interactions and novel therapeutic approaches for DPN.

Main Methods:

  • Review of existing literature on DPN pathogenesis.
  • Analysis of the impact of metabolic factors (hyperglycemia, dyslipidemia) on nerve bioenergetics.
  • Examination of peripheral nerve anatomy and glia-axon dynamics in T2D.

Main Results:

  • DPN results from impaired metabolism and bioenergetics failure in long peripheral nerve axons.
  • Hyperglycemia, obesity, and dyslipidemia are key contributors to DPN pathogenesis.
  • Glia-axon interactions are critical in the context of T2D-induced nerve injury.

Conclusions:

  • Understanding the complex interplay of metabolic factors and nerve biology is crucial for DPN.
  • Current therapies for DPN are limited, highlighting the need for mechanism-based treatments.
  • Further research into novel therapeutic strategies targeting bioenergetics and glia-axon interactions is warranted.