scholarly journals Effect of an Excessive Intake of Quercetin on the Vitamin E Level and Antioxidative Enzyme Activities of Mouse Liver under Paraquat-Induced Oxidative Stress

2007 ◽  
Vol 71 (10) ◽  
pp. 2569-2572 ◽  
Author(s):  
Noriko BANDO ◽  
Saori WAKAMATSU ◽  
Junji TERAO
Keyword(s):  
Oxidative Stress ◽  
Vitamin E ◽  
Enzyme Activities ◽  
Mouse Liver ◽  
Antioxidative Enzyme ◽  
Antioxidative Enzyme Activities ◽  
Excessive Intake

scholarly journals Attenuation of Oxidative Stress of Erythrocytes by Plant-Derived Flavonoids, Orientin and Luteolin

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Fang An ◽  
Shulin Wang ◽  
Danhua Yuan ◽  
Yuewen Gong ◽  
Shuhua Wang
Keyword(s):  
Oxidative Stress ◽  
Cell Surface ◽  
Enzyme Activities ◽  
Cellular Structure ◽  
Antioxidative Enzyme ◽  
Control Group ◽  
Group Model ◽  
Dependent Manner ◽  
Antioxidative Enzyme Activities ◽  
Hemolysis Rate

Erythrocytes are easy to be injured by oxidative stress in their lifespan. Although there are several chemicals such as vitamin C (VC) that would be able to reduce oxidative stress, natural herbal products still remain an interesting research area. The current study investigated the effects of two plant-derived flavonoids, orientin and luteolin, on erythrocytes and their possible mechanisms. This experiment was divided into nine groups, which were normal group, model group, VC control group, and treated groups with different doses of orientin and luteolin (10, 20, and 40 μg/mL), respectively. Hemolysis rate was determined by spectrophotometry. Antioxidative enzyme and products were evaluated by different methods. Erythrocyte cell surface and cellular structure were observed with scanning or transmission electron microscope, respectively. Oxidative stress induced significant increase in hemolysis rate of erythrocytes. Orientin or luteolin ameliorated hemolysis of erythrocytes in oxidative stress in a dose-dependent manner. Both orientin and luteolin reduced oxidative products and increased antioxidative enzyme activities. Moreover, orientin and luteolin attenuated oxidative stress induced damage of erythrocyte cell surface morphology and cellular structure. In conclusion, orientin and luteolin could protect human erythrocytes from oxidative damage by attenuating oxidative stress, protecting antioxidative enzyme activities, and preserving integrity of erythrocyte structure.

Decreased neutrophil antioxidative enzyme activities and increased lipid peroxidation in hyperlipoproteinemic human subjects

1999 ◽  
Vol 279 (1-2) ◽  
pp. 155-165 ◽  
Author(s):  
Hasan Efe ◽  
Orhan Değer ◽  
Dursun Kirci ◽  
S.Caner Karahan ◽  
Asim Örem ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Enzyme Activities ◽  
Human Subjects ◽  
Antioxidative Enzyme ◽  
Antioxidative Enzyme Activities

scholarly journals Effect of Methyl Jasmonate on antioxidative enzyme activities and on the contents of ROS and H2O2 in Ricinus communis leaves

2010 ◽  
Vol 22 (3) ◽  
pp. 151-158 ◽  
Author(s):  
Alexandra Martins dos Santos Soares ◽  
Thiago Freitas de Souza ◽  
Tânia Jacinto ◽  
Olga Lima Tavares Machado
Keyword(s):  
Methyl Jasmonate ◽  
Enzyme Activities ◽  
Ricinus Communis ◽  
Antioxidative Enzyme ◽  
Antioxidative Enzyme Activities

Correlations between antioxidative enzyme activities and resistance to Phytophthora leaf blight in taro

2020 ◽  
pp. 1-14
Author(s):  
Yumnam Indrani Devi ◽  
Manas Ranjan Sahoo ◽  
Joydip Mandal ◽  
Madhumita Dasgupta ◽  
Narendra Prakash
Keyword(s):  
Enzyme Activities ◽  
Leaf Blight ◽  
Antioxidative Enzyme ◽  
Antioxidative Enzyme Activities
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