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KMID : 1141220230140010118
Safety and Health at Work
2023 Volume.14 No. 1 p.118 ~ p.123
The Effects of Resveratrol on Silica-Induced Lung Oxidative Stress and Inflammation in Rat
Maryam Esfahani

Amir Hossein Rahbar
Sara Soleimani Asl
Saed Bashirian
Effat Sadat Mir Moeini
Fereshteh Mehri
Abstract
Background Chronic exposure to silica is related with the provocation of an inflammatory response and oxidative stress mechanism. Vitamin D has multiple benefits in biological activities particularly respiratory system disease.

Method In this research, 20 male Wistar rats were randomly allocated into four groups (5 rats /group) as follow: Group1 received saline as (negative control) group. The group 2 received a single IT instillation of silica (positive control) group; the group 3 was co-administrated with single IT silica and Vitamin D (20 mg/kg/day) daily for a period of 90 days. The rats of group 4 received Vitamin D daily for a period of 90 days.

Results Silica significantly increased serum and lung total Oxidant Status (TOS). Meanwhile, silica reduced serum and lung total antioxidant capacity (TAC), GSH and tumor necrosis factor-¥á (TNF-a). Vitamin D treatment meaningfully reversed oxidative stress, antioxidants status and inflammatory response. Also, Vitamin D improved histopathological changes caused by silica.

Conclusion These findings indicate that Vitamin D exerts protective effects against silica-induced lung injury. It seems that Vitamin D has potential use as a therapeutic object for silica induced lung injure.
KEYWORD
Silicosis, Vitamin D, Oxidative stress, Inflammation, TNF-¥á
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SCI(E) ÇмúÁøÈïÀç´Ü(KCI) KoreaMed