Selective enrichment of NADPH oxidase activity in phagosomes from guinea pig polymorphonuclear leukocytes

Inflammation ◽  
1982 ◽  
Vol 6 (1) ◽  
pp. 21-29 ◽  
Author(s):  
P. Bellavite ◽  
M. C. Serra ◽  
A. Davoli ◽  
F. Rossi
Keyword(s):  
Guinea Pig ◽  
Nadph Oxidase ◽  
Oxidase Activity ◽  
Polymorphonuclear Leukocytes ◽  
Nadph Oxidase Activity ◽  
Selective Enrichment

scholarly journals Neuroprotective Benefits of Exercise and MitoQ on Memory Function, Mitochondrial Dynamics, Oxidative Stress, and Neuroinflammation in D-Galactose-Induced Aging Rats

2021 ◽  
Vol 11 (2) ◽  
pp. 164
Author(s):  
Jae-Hoon Jeong ◽  
Jung-Hoon Koo ◽  
Jang Soo Yook ◽  
Joon-Yong Cho ◽  
Eun-Bum Kang
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Cognitive Impairment ◽  
Nadph Oxidase ◽  
Learning And Memory ◽  
Oxidase Activity ◽  
Mitochondrial Dynamics ◽  
Nadph Oxidase Activity ◽  
Aging Rats ◽  
Positive Effects

Exercise and antioxidants have health benefits that improve cognitive impairment and may act synergistically. In this study, we examined the effects of treadmill exercise (TE) and mitochondria-targeted antioxidant mitoquinone (MitoQ), individually or combined, on learning and memory, mitochondrial dynamics, NADPH oxidase activity, and neuroinflammation and antioxidant activity in the hippocampus of D-galactose-induced aging rats. TE alone and TE combined with MitoQ in aging rats reduced mitochondrial fission factors (Drp1, Fis1) and increased mitochondrial fusion factors (Mfn1, Mfn2, Opa1). These groups also exhibited improved NADPH oxidase activity and antioxidant activity (SOD-2, catalase). TE or MitoQ alone decreased neuroinflammatory response (COX-2, TNF-α), but the suppression was greater with their combination. In addition, aging-increased neuroinflammation in the dentate gyrus was decreased in TE but not MitoQ treatment. Learning and memory tests showed that, contrarily, MitoQ alone demonstrated some similar effects to TE but not a definitive improvement. In conclusion, this study demonstrated that MitoQ exerted some positive effects on aging when used as an isolated treatment, but TE had a more effective role on cognitive impairment, oxidative stress, inflammation, and mitochondria dysfunction. Our findings suggest that the combination of TE and MitoQ exerted no synergistic effects and indicated regular exercise should be the first priority in neuroprotection of age-related cognitive decline.

scholarly journals Regulation of NADPH Oxidase Activity in Phagocytes

2010 ◽  
Vol 285 (43) ◽  
pp. 33197-33208 ◽  
Author(s):  
Franck Debeurme ◽  
Antoine Picciocchi ◽  
Marie-Claire Dagher ◽  
Didier Grunwald ◽  
Sylvain Beaumel ◽  
...  
Keyword(s):  
Nadph Oxidase ◽  
Oxidase Activity ◽  
Nadph Oxidase Activity
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