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3,5-Dimethoxy-4-benzoic Acid (syringic Acid) a Natural Phenolic Acid Reduces Reactive Oxygen Species in Differentiated 3T3-L1 Adipocytes

Overview
Publisher Springer
Specialties Biology
Cell Biology
Date 2021 Mar 27
PMID 33772407
Citations 5
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Abstract

Preadipocytes under nutrient excess mature to lipid-laden adipocytes that are hotspots for generation of reactive oxygen species (ROS) imbalance and oxidative stress. Syringic acid (SA), a natural phenolic acid, was evaluated for its in vitro antioxidant and ROS modulation during in matured 3T3-L1 adipocytes. Following 10 d, the SA-treated adipocytes were evaluated for the levels of glutathione (GSH) and antioxidant enzymes such as superoxide dismutase (SOD) and catalase (CAT). The levels of peroxides in mature adipocytes were estimated using dichlorofluorescein (DCF) cleavage fluorescence. The level of NADPH oxidase 4 (NOX4) expression was also investigated following 10-d differentiation period. SA significantly improved the levels of GSH, SOD, and CAT in matured adipocytes. Reduction in ROS production levels was also witnessed by decrease in DCF cleavage. SA showed concentration-dependent inhibition of NOX4 by day 7 of adipogenesis when compared with differentiated and undifferentiated cells. Moreover, SA exhibited effective antioxidant and anti-radical scavenging activity. These results suggest that SA in addition to inhibiting adipogenesis can strongly reduce ROS stress in mature adipocytes by upregulating levels of intracellular antioxidants and decreasing levels of NOX4 in 3T3-L1 adipocytes.

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