Effects of hydrogen peroxide on Scenedesmus obliquus: Cell growth, antioxidant enzyme activity and intracellular protein fingerprinting

Chemosphere ◽  
2022 ◽  
Vol 287 ◽  
pp. 132185
Author(s):  
Haihan Zhang ◽  
Rongrong Zong ◽  
Huiyan He ◽  
Tinglin Huang
Keyword(s):  
Hydrogen Peroxide ◽  
Enzyme Activity ◽  
Cell Growth ◽  
Antioxidant Enzyme ◽  
Scenedesmus Obliquus ◽  
Antioxidant Enzyme Activity ◽  
Intracellular Protein ◽  
Protein Fingerprinting

Antioxidant enzyme activity and hydrogen peroxide content during the drying of Arabica coffee beans

2013 ◽  
Vol 236 (5) ◽  
pp. 753-758 ◽  
Author(s):  
Mery Y. Rendón ◽  
Priscila L. Gratão ◽  
Terezinha J.G. Salva ◽  
Ricardo A. Azevedo ◽  
Neura Bragagnolo
Keyword(s):  
Hydrogen Peroxide ◽  
Enzyme Activity ◽  
Antioxidant Enzyme ◽  
Antioxidant Enzyme Activity ◽  
Arabica Coffee ◽  
Peroxide Content ◽  
Coffee Beans

Antioxidant Enzyme Levels Inversely Covary with Hearing Loss After Amikacin Treatment

2003 ◽  
Vol 14 (03) ◽  
pp. 134-143 ◽  
Author(s):  
James J. Klemens ◽  
Robert P. Meech ◽  
Larry F. Hughes ◽  
Satu Somani ◽  
Kathleen C.M. Campbell
Keyword(s):  
Hearing Loss ◽  
Enzyme Activity ◽  
Antioxidant Enzyme ◽  
Guinea Pigs ◽  
Auditory Brainstem ◽  
Antioxidant Enzyme Activity ◽  
Control Group ◽  
Glutathione S Transferase ◽  
Brainstem Response ◽  
The Difference

This study's purpose was to determine if a correlation exists between cochlear antioxidant activity changes and auditory function after induction of aminoglycoside (AG) ototoxicity. Two groups of five 250-350 g albino guinea pigs served as subjects. For 28 days, albino guinea pigs were administered either 200 mg/kg/day amikacin, or saline subcutaneously. Auditory brainstem response testing was performed prior to the first injection and again before sacrifice, 28 days later. Cochleae were harvested and superoxide dismutase, catalase, glutathione peroxidase, glutathione-S-transferase, glutathione reductase activities and malondialdehyde levels were measured. All antioxidant enzymes had significantly lower activity in the amikacin group (p ≤ 0.05) than in the control group. The difference in cochlear antioxidant enzyme activity between groups inversely correlated significantly with the change in ABR thresholds. The greatest correlation was for the high frequencies, which are most affected by aminoglycosides. This study demonstrates that antioxidant enzyme activity and amikacin-induced hearing loss significantly covary.

Sign in / Sign up

Export Citation Format

Share Document