Low-level laser therapy: Effects on human face aged skin and cell viability of HeLa cells exposed to UV radiation | Zendy

Sana Mezghani | Zendy; Amira Hammami | Zendy; Mohamed Amri | Zendy

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Low-level laser therapy: Effects on human face aged skin and cell viability of HeLa cells exposed to UV radiation

Author(s) -

Sana Mezghani,

Amira Hammami,

Mohamed Amri

Publication year - 2015

Publication title -

archives of biological sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.217

H-Index - 25

eISSN - 1821-4339

pISSN - 0354-4664

DOI - 10.2298/abs140115002m

Subject(s) - photoaging , hela , viability assay , skin aging , dermatology , human skin , low level laser therapy , cell , cell damage , irradiation , medicine , cancer research , chemistry , laser therapy , biology , laser , biochemistry , genetics , physics , optics , nuclear physics

Chronic and excessive exposure to UV radiation leads to photoaging and photocarcinogenesis. Adequate protection of the skin against the deleterious effects of UV irradiation is essential. Low-level laser therapy (LLLT) is a light source in the red to near-infrared range that has been accepted in a variety of medical applications. In this study, we explored the effect of LLLT in human face aged skin and the cell viability of HeLa cells exposed to UV radiation. We found that LLLT significantly reduced visible wrinkles and the loss of firmness of facial skin in aging subjects. Additionally, treatment of cultured HeLa cells with LLLT prior to or post UVA or UVB exposure significantly protected cells from UV-mediated cell death. All results showed the beneficial effects of LLLT on relieving signs of skin aging and its prevention and protection of the cell viability against UV-induced damage

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