Inflammation, oxidative stress, matrix metalloproteinases and DNA damage in diabetic polyneuropathy and neuropathic pain - Report - MDSpire

The Role of Inflammation, Oxidative Stress, Matrix Metalloproteinases, and DNA Damage in Diabetic Polyneuropathy and Associated Neuropathic Pain

  • By

  • Tugce Ozdemir Gultekin

  • Elif Gokcal

  • Huri Demirci

  • Asli Yaman Kula

  • Cigdem Deniz

  • Abdurrahim Kocyigit

  • Talip Asil

  • Azize Esra Gursoy

  • July 20, 2026

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Clinical Report: The Role of Inflammation, Oxidative Stress, MMPs, and DNA Damage in DPNP

Overview

This study investigates the associations between inflammation, oxidative stress, matrix metalloproteinases (MMPs), DNA damage, and diabetic polyneuropathy (DPNP) and neuropathic pain (DNP) in patients with Type 2 diabetes mellitus.

Background

Diabetic polyneuropathy is a prevalent complication of type 2 diabetes mellitus, significantly impacting patient quality of life and increasing healthcare costs. Understanding the underlying mechanisms, including inflammation and oxidative stress, is crucial.

Data Highlights

BiomarkerDiabetic PatientsHealthy Controls
IL-6HigherLower
TNF-αHigherLower
IL-1βHigherLower
MMP-9HigherLower
MMP-10HigherLower
Oxidative Stress IndexHigherLower
DNA DamageHigherLower

Key Findings

  • Diabetic patients exhibited significantly higher levels of IL-6, TNF-α, IL-1β, MMP-9, MMP-10, OSI, and DNA damage compared to healthy controls (p < 0.001).
  • All biomarkers except MMP-2 were significantly elevated in diabetic patients with DPNP and DNP (p < 0.001).
  • Strong correlations were observed among IL-6, TNF-α, IL-1β, MMP-9, and OSI levels in diabetic patients.
  • Multivariable analysis indicated that DPNP was independently associated with increased levels of MMP-9, MMP-10, and OSI.
  • DNP was independently associated with increased OSI levels.

Clinical Implications

Monitoring inflammatory and oxidative stress markers in patients with Type 2 diabetes may provide insights into the progression of diabetic neuropathy.

Conclusion

The findings highlight the role of inflammation, oxidative stress, and matrix metalloproteinases in the pathophysiology of diabetic polyneuropathy and associated neuropathic pain.

Related Resources & Content

  1. Frontiers in Endocrinology, 2026 -- The Pivotal Role of Immunometabolism in Diabetic Neuropathy and Its Potential Therapeutic Strategies
  2. Wound Repair and Regeneration, 2026 -- Transcriptomic Profiling of Diabetic Porcine Wound Healing Model Identifies Key Metabolic, Inflammatory, and Oxidative Stress Pathways
  3. Frontiers in Endocrinology, 2026 -- Diabetic impact on the neuroaxis: From peripheral neuropathy to central neurodegeneration
  4. Retinopathy, Neuropathy, and Foot Care: Standards of Care in Diabetes—2026
  5. Frontiers in Immunology — PANoptosis in diabetic retinopathy: immunological insights into mechanisms and translational therapies
  6. Comparison of amitriptyline supplemented with pregabalin, pregabalin supplemented with amitriptyline, and duloxetine supplemented with pregabalin for the treatment of diabetic peripheral neuropathic pain (OPTION-DM)
  7. Diabetic neuropathy: cutting-edge research and future directions
  8. 12. Retinopathy, Neuropathy, and Foot Care: Standards of Care in Diabetes—2026

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