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논문 기본 정보

자료유형
학술저널
저자정보
Handule Lee (Dongduk Women’s University) Juyoung Park (Dongduk Women’s University) Kwangsik Park (Dongduk Women’s University)
저널정보
환경독성보건학회 Environmental Analysis Health and Toxicology Environmental Analysis Health and Toxicology Vol.36 No.2
발행연도
2021.6
수록면
19 - 29 (11page)

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Previous research studies on the toxicity of polyhexamethylene guanidine (PHMG) as a humidifier disinfectant majorly focused on lung fibrosis. Considering that disinfectants in humidifiers are released in aerosol form, the eyes are directly exposed and highly vulnerable to the detrimental effects of the PHMG. Therefore, in the present study we investigated the adverse effects of PHMG on the eyes; considering fibrosis as a manifestation of PHMG toxicity in the eye, we evaluated fibrosis-related biomarkers in cultured Statens Seruminstitut Rabbit Cornea (SIRC) cells. Cell viability was measured using 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay, fibrosis-related biomarkers were evaluated through polymerase chain reaction (PCR) and immunoblotting, and oxidative stress was evaluated using 2’,7’-dichlorodihydrofluorescein diacetate (H₂DCFDA). Polyhexamethylene guanidine showed cytotoxicity in a time and concentration-dependent manner. Fibrosis related biomarkers including transforming growth factor-β (TGF-β), α-smooth muscle actin (α-SMA), matrix metalloproteinase (MMP), tissue inhibitor of metalloproteinase (TIMP) and hemeoxygenase-1 (HO-1) increased in both gene and protein levels. Oxidative stress also increased in the PHMG-treated cultured cells. The findings of the present study suggest that PHMG could cause toxicity in the eye as manifested by fibrosis.

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Abstract
Introduction
Materials and Methods
Results
Discussion
Conclusions
References

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