Genotoxicity, oxidative stress and lysozyme induction in Clarias gariepinus chronically exposed to water-soluble fraction of burnt tire ash

Ecotoxicology ◽  
2021 ◽  
Author(s):  
Stanley C. Iheanacho ◽  
Adewale I. Adeolu ◽  
Roseline Nwose ◽  
Joshua Ekpenyong ◽  
Peter Offu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Soluble Fraction ◽  
Clarias Gariepinus ◽  
Water Soluble ◽  
Water Soluble Fraction

Effects of atorvastatin on fine particle-induced inflammatory response, oxidative stress and endothelial function in human umbilical vein endothelial cells

2011 ◽  
Vol 30 (11) ◽  
pp. 1828-1839 ◽  
Author(s):  
Jinzhuo Zhao ◽  
Yuquan Xie ◽  
Rongfang Jiang ◽  
Haidong Kan ◽  
Weimin Song
Keyword(s):  
Oxidative Stress ◽  
Inflammatory Response ◽  
Cell Viability ◽  
Fine Particles ◽  
Soluble Fraction ◽  
Umbilical Vein ◽  
Water Soluble ◽  
Water Soluble Fraction ◽  
Tnf Α ◽  
Organic Extracts

The study is to explore the toxicity of organic extracts and water-soluble fraction of fine particles on human umbilical vein endothelial cells (HUVECs). The exposure doses were 100, 200 and 400 μg/ml, respectively, for two kinds of fractions. Moreover, atorvastatin was used for intervention study. HUVECs were stimulated by 400 μg/ml organic and water soluble extracts, respectively, immediately followed by treatment with atorvastatin in concentrations of 0.1 μmol/L, 1 μmol/L and 10 μmol/L, respectively. Cell viability, malondialdehyde (MDA), nitric oxide (NO), superoxide dismutase (SOD), reactive oxygen species (ROS) and the expression of interleukin-6 beta (IL-6), tumor necrosis factor-α (TNF-α), endothelin-1 and P-selectin were determined in cells. The results showed that MDA and ROS increased in HUVECs after exposed to organic extracts and water-soluble fraction, whereas cell viability, NO and SOD decreased. The mRNA expression of IL-6, TNF-α, endothelin-1 (ET-1) and P-selectin increased after exposed to different fractions. Meanwhile, at the same exposure dose, water-soluble fraction caused more significant increase of MDA, IL-6, TNF-α and P-selectin and decrease of cell viability and NO when compared to organic extracts. Compared to no atorvastatin group, the levels of MDA, ROS and the expression of IL-6, TNF-α, ET-1 and P-selectin decreased in HUVECs in adding atorvastatin group, but cell viability, NO and SOD increased, which indicated that atorvastatin attenuated fine particle-induced inflammatory response, oxidative stress and endothelial damage. The results hinted that the inflammatory response, oxidative stress and endothelial dysfunction might be the mechanisms of cardiovascular injury induced by different fractions of ambient fine particles.

scholarly journals Acute Toxicity of Water Soluble Fraction of Crude Oil to the Early Life Stages of the African Catfish (Clarias gariepinus)

2014 ◽  
Vol 57 (2) ◽  
pp. 97-103
Author(s):  
Joshua Idowu Izegaegbe ◽  
Femi Francis Oloye ◽  
Efere Martins Obuotor ◽  
Victor Funso Olaleye ◽  
Stephen Adeyeni
Keyword(s):  
Acute Toxicity ◽  
Crude Oil ◽  
Early Life ◽  
Soluble Fraction ◽  
Clarias Gariepinus ◽  
Water Soluble ◽  
African Catfish ◽  
Life Stages ◽  
Early Life Stages ◽  
Water Soluble Fraction

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