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The Effect of Diamond Nanoparticles on Redox and Immune Parameters in Rats

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The objective of the study was to evaluate the effect of nanodiamond (ND) particles manufactured by detonation method (size of grains 2–10 nm) on organism health status. Wistar rats were administrated with diamond nanoparticles colloid by intravenous and intraperitoneal injection. Both routes of administration increased superoxide dismutase (SOD) activity and at the same time decreased activity of glutathione reductase (GR) and glutathione peroxidase (GPx) within erythrocytes. ND did not significantly affect neither total antioxidative state (TAS) nor thiobarbituric acid reactive substances (TBARS) in examined animals blood plasma. This study was also designed to examine the effect of ND on the phagocytosis activity and oxidative burst of innate immune cells. Both intravenous and intraperitoneal administration of ND hydrocolloid decreased the number of the phagocytosing neutrophiles stimulated by E. coli. Independently of the injection method nanodiamond increased the number of cells with stimulated oxidative burst and it suppressed the mechanism of oxygen dependent bacteria elimination.
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Keywords: IMMUNE CELL; NANODIAMOND PARTICLES; OXIDATIVE BURST; PHAGOCYTOSIS; REDOX

Document Type: Research Article

Publication date: 2011-10-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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