Journal
BIOLOGICAL TRACE ELEMENT RESEARCH
Volume 199, Issue 11, Pages 4218-4224Publisher
SPRINGERNATURE
DOI: 10.1007/s12011-020-02560-7
Keywords
Zinc; Copper; Nanoparticles; Mice; Blood parameters
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The study showed that zinc oxide and copper oxide nanoparticles, especially at higher doses, had negative effects on the blood physiological and biochemical responses in male Swiss albino mice. When used together, the impact was more significant compared to using zinc oxide or copper oxide nanoparticles alone. Blood serum profiles could be used as indicators to assess nanoparticle toxicity on various physiological functions in animals.
Zinc oxide (ZnO) and copper oxide (CuO) nanoparticles (NPs) are widely used in medicine and industrial fields. They have negative effects such as hematoxic, cytotoxic, and genotoxic on animals. This research aimed to investigate the blood physiological and biochemical responses induced by ZnO-NP and CuO-NP individually or in combination in male Swiss albino mice. For purpose, NPs were given to mice with 100 mu l of water by oral gavage for 14 days. Three sublethal NP dose groups (1, 5, 25 mg/kg/day) and one control group (only received 100 mu l of water) were used in the experiments and serum metabolite (glucose, total protein, total cholesterol, triglyceride, cortisol, blood urea nitrogen, immunoglobulin G, and M), ions (Na, K, Cl, Mg, and Ca), and enzyme (ALT, AST, ALP, and LDH) levels were measured. ZnO-, CuO-, and ZnO+CuO-NPs especially higher doses (5 and 25 mg/kg/day) decreased all serum metabolite (except blood urea nitrogen), ions, and ALP while these nanoparticles increased ALT, AST, LDH, and blood urea nitrogen. These increases/decreases in all serum parameters were generally higher in mice treated with the ZnO+CuO-NP mixture compared to the ZnO-NP and CuO-NP groups alone. The study shows that serum biochemistry profiles can be used as indicators to assess nanoparticle toxicity on lipid, protein, and energy metabolisms, immune and enzyme systems, ion regulation, and tissue functions.
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