Rethinking Dithiothreitol-Based Particulate Matter Oxidative Potential: Measuring Dithiothreitol Consumption versus Reactive Oxygen Species Generation

2017 ◽  
Vol 51 (11) ◽  
pp. 6507-6514 ◽  
Author(s):  
Qianshan Xiong ◽  
Haoran Yu ◽  
Runran Wang ◽  
Jinlai Wei ◽  
Vishal Verma
Keyword(s):  
Reactive Oxygen Species ◽  
Particulate Matter ◽  
Reactive Oxygen Species Generation ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Oxidative Potential

Aerosol-Borne Quinones and Reactive Oxygen Species Generation by Particulate Matter Extracts

2006 ◽  
Vol 40 (16) ◽  
pp. 4880-4886 ◽  
Author(s):  
Myeong Y. Chung ◽  
Rick A. Lazaro ◽  
Dianne Lim ◽  
Joscelyne Jackson ◽  
Julie Lyon ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Particulate Matter ◽  
Reactive Oxygen Species Generation ◽  
Reactive Oxygen ◽  
Oxygen Species

Роль оксида азота в реализации антиоксидантного эффекта неопиатного аналога лей-энкефалина в сердце новорожденных белых крыс

2019 ◽  
pp. 61-64
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen Species Generation ◽  
Reactive Oxygen ◽  
Postnatal Period ◽  
Oxide System ◽  
No Synthase ◽  
Albino Rats ◽  
Oxygen Species ◽  
Control Parameters ◽  
Synthase Inhibitor

The eff ect of the non-opiate analog of leu-enkephalin (peptide NALE: Phe – D – Ala – Gly – Phe – Leu – Arg) on the reactive oxygen species generation in the heart of albino rats in the early postnatal period was studied. Peptide NALE was administered intraperitoneally in the dose of 100 μ/kg daily from 2 to 6 days of life. Reactive oxygen species generation was assessed by chemiluminescence in the heart homogenates of 7-day-old animals. Decreasing of reactive oxygen species generation nearly by 30 % and an increasing in antioxidant system activity by the 20-27 %, compared with the control parameters, were found. The antioxidant eff ect of peptide NALE is associated with the presence of the amino acid Arg in the structure of the peptide. An analogue of NALE peptide, devoid of Arg (peptide Phe – D – Ala – Gly – Phe – Leu – Gly), had a signifi cant lower antioxidant eff ect. The NO-synthase inhibitor NG-nitro-L-arginine methyl ester (L-NAME) in the dose 50 mg/kg, administered with NALE peptide, reduced the severity of the NALE antioxidant eff ect. The results of the study suggest that the pronounced antioxidant eff ect of NALE peptide in the heart of albino rats, at least in part, is due to the interaction with the nitric oxide system.

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