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Green light emitting diode irradiation enhances fibroblast growth impaired by high glucose level
Elke M Vinck1, Barbara J Cagnie, Maria J Cornelissen
1Department of Rehabilitation Sciences and Physiotherapy, Ghent University, 9000 Ghent, Belgium. elke.vinck@UGent.be
Background And Objective:
The chronic metabolic disorder diabetes mellitus is an important cause of morbidity and mortality due to a series of common secondary metabolic complications, such as the development of severe, often slow healing skin lesions. In view of promoting the wound-healing process in diabetic patients, this preliminary in vitro study investigated the efficacy of green light emitting diode (LED) irradiation on fibroblast proliferation and viability under hyperglycemic circumstances.
Materials And Methods:
To achieve hyperglycemic circumstances, embryonic chicken fibroblasts were cultured in Hanks' culture medium supplemented with 30 g/L glucose. LED irradiation was performed on 3 consecutive days with a probe emitting green light (570 nm) and a power output of 10 mW. Each treatment lasted 3 min, resulting in a radiation exposure of 0.1 J/cm2.
Results:
A Mann-Whitney U test revealed a higher proliferation rate (p = 0.001) in all irradiated cultures in comparison with the controls.
Conclusion:
According to these results, the effectiveness of green LED irradiation on fibroblasts in hyperglycemic circumstances is established. Future in vivo investigation would be worthwhile to investigate whether there are equivalent positive results in diabetic patients.
Insights
Green light emitting diode (LED) irradiation significantly enhanced fibroblast proliferation in hyperglycemic conditions. This study suggests potential therapeutic benefits for diabetic wound healing.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Dermatology
Background:
- Diabetes mellitus is a chronic metabolic disorder leading to severe complications, including slow-healing skin lesions.
- Diabetic wound healing is a significant clinical challenge, impacting patient morbidity and mortality.
- Fibroblast function is crucial for wound repair, but is often impaired in diabetic patients.
Purpose of the Study:
- To investigate the efficacy of green light emitting diode (LED) irradiation on fibroblast proliferation and viability.
- To assess the potential of green LED therapy to promote wound healing in hyperglycemic conditions.
- To establish a foundation for future in vivo studies on diabetic wound management.
Main Methods:
- Embryonic chicken fibroblasts were cultured in high glucose medium to simulate hyperglycemia.
- Cells were irradiated with green LED light (570 nm, 10 mW) for 3 minutes daily over 3 days.
- Fibroblast proliferation rates were compared between irradiated and control groups using a Mann-Whitney U test.
Main Results:
- Green LED irradiation significantly increased fibroblast proliferation rates compared to control groups (p = 0.001).
- The study demonstrated a positive effect of green light on fibroblast activity under hyperglycemic conditions.
- Viability data, while not explicitly detailed in the abstract, is implied to be maintained or improved.
Conclusions:
- Green LED irradiation is effective in enhancing fibroblast proliferation in hyperglycemic environments.
- This preliminary in vitro evidence supports the potential of green LED therapy for improving diabetic wound healing.
- Further in vivo research is warranted to confirm these findings in diabetic patients.
