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Damir Suljevic, Erna Islamagić, Anida Čorbić, M. Fočak, Filip Filipić
7 2. 1. 2020.

Chronic cadmium exposure in Japanese quails perturbs serum biochemical parameters and enzyme activity

Abstract Cadmium is a heavy metal, toxic even in trace amounts and its biological function in the human body has not been described to date. It is assumed that cadmium manifests in dose-dependent genotoxic and cytotoxic effects on many organs and tissue types. In this study, we have analyzed the biochemical parameters in the serum of Japanese quails (Coturnix japonica) after chronic in vivo exposure to cadmium. Adult animals were exposed to cadmium in the form of CdCl2 dissolved in water (0.20 mg/L) for 20 days. Significant differences between controls and exposed animals were found in 12 out of 13 analyzed biochemical parameters. Total bilirubin concentrations did not show any significant differences between the two groups. Exposure to cadmium has resulted in a significant increase in lactate dehydrogenase activity, sodium and chloride concentration, as well as significant reductions in total proteins, albumins, globulins, glucose, triglycerides, cholesterol, calcium concentration, and alkaline phosphatase activity. In this sense, chronic in vivo exposure to low doses of cadmium has induced severe changes in the levels of observed biochemical parameters and enzyme activity. Additionally, evident cytogenetic changes in the liver were also noted, where hepatocyte damage and even lack of organized nuclei, including nuclear fragmentation, clearly indicated ongoing apoptotic processes.


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