Photo-biomodulatory response of low-power laser irradiation on burn tissue repair in mice

Autor: Vijendra Prabhu, Sharada Rai, Krishna Kishore Mahato, Bharath Rathnakar, Subhash Chandra, Anuradha Calicut Kini Rao, Bola Sadashiva Satish Rao, Mrinalini Sharma, Pradeep Kumar Gupta
Rok vydání: 2016
Předmět:
Zdroj: Lasers in Medical Science. 31:1741-1750
ISSN: 1435-604X
0268-8921
DOI: 10.1007/s10103-016-2044-2
Popis: The present work reports the photo-biomodulatory effect of red (632.8 nm) and near infrared (785 and 830 nm) lasers on burn injury in Swiss albino mice. Animals were induced with a 15-mm full thickness burn injury and irradiated with various fluences (1, 2, 3, 4, and 6 J/cm2) of each laser wavelength under study having a constant fluence rate (8.49 mW/cm2). The size of the injury following treatment was monitored by capturing the wound images at regular time intervals until complete healing. Morphometric assessment indicated that the group treated with 3-J/cm2 fluence of 830 nm had a profound effect on healing as compared to untreated controls and various fluences of other wavelengths under study. Histopathological assessment of wound repair on treatment with an optimum fluence (3 J/cm2) of 830 nm performed on days 2, 6, 12, and 18 post-wounding resulted in enhanced wound repair with migration of fibroblasts, deposition of collagen, and neovascularization as compared to untreated controls. The findings of the present study have clearly demonstrated that a single exposure of 3-J/cm2 fluence at 830-nm enhanced burn wound healing progression in mice, which is equivalent to 5 % povidone iodine treatment (reference standard), applied on a daily basis till complete healing.
Databáze: OpenAIRE
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