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Published on: November 17, 2018
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.
Abstract:
This study examined the effect of monochromatic infrared energy (MIRE) on diabetic wound healing. Fifteen diabetic rats were given MIRE intervention on their skin wounds located on the dorsum and compared with 15 control diabetic rats. Assessments were conducted for each group at weeks 1, 2 and 4 post wounding (five rats at each time point) by calculating the percentage of wound closures (WCs) and performing histological and immunohistochemical staining on sections of wound tissue. Evaluations of WCs and histological examinations of reepithelialisation, cellular content and granulation tissue formation showed no significant difference between the MIRE and the control group at each time point. Through semi-quantitative immunohistochemical staining, the deposition of type I collagen in the MIRE group was found to have improved when compared with the control group at the end of week 2 (P = 0.05). No significant differences in the myofibroblast population were detected between the two groups. In conclusion, MIRE appeared to promote collagen deposition in the early stage of wound healing in diabetic rats, but the overall wound healing in the MIRE group was not significantly different from that of the control group.
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.
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