The effect of monochromatic infrared energy on diabetic wound healing

Yayi He1, Selina Ly Yip2, Kwok-Kuen Cheung2

  • 1Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong (SAR), China.

Insights

Monochromatic infrared energy (MIRE) showed no significant impact on overall diabetic wound healing. However, MIRE did appear to improve early-stage collagen deposition in diabetic rat models.

Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Diabetic Complications

Background:

  • Diabetic wounds present a significant clinical challenge due to impaired healing mechanisms.
  • Monochromatic infrared energy (MIRE) is explored for its potential therapeutic effects on tissue repair.

Purpose of the Study:

  • To investigate the efficacy of MIRE in accelerating wound closure and improving histological outcomes in a diabetic rat model.
  • To assess MIRE's impact on key healing markers, including collagen deposition and reepithelialization.

Main Methods:

  • Diabetic rats with dorsal skin wounds were treated with MIRE and compared to a control group.
  • Wound closure percentages, histological examinations, and immunohistochemical staining were performed at multiple time points (1, 2, and 4 weeks).

Main Results:

  • No significant differences were observed in overall wound closure, reepithelialization, cellular content, or granulation tissue formation between MIRE and control groups.
  • MIRE treatment showed a statistically significant improvement in type I collagen deposition at week 2 (P=0.05).
  • Myofibroblast populations did not differ significantly between the groups.

Conclusions:

  • MIRE may promote collagen deposition in the early stages of diabetic wound healing.
  • MIRE did not demonstrate a significant overall improvement in wound healing compared to standard care in this diabetic rat model.