Morphometric and functional changes in the kidney of rats induced by inorganic selenium

Randjelović, Pavle and Radulović, Niko and Stojanović, Nikola and Ilić, Ivan (2024) Morphometric and functional changes in the kidney of rats induced by inorganic selenium. ACTA VETERINARIA HUNGARICA, 72 (3). pp. 141-147. ISSN 0236-6290

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Abstract

Selenium (Se) is an essential trace element. Depending on concentration, Se can manifest both beneficial and harmful effects on the cell and can have both oxidative and antioxidant effects. Because the therapeutic index for Se is very narrow and it can depend on the form of Se used, we aimed to investigate the potential safety and side effects of inorganic Se on kidney function and structure in rats. After 8 days of treatment, no detectable signs of microscopic changes or oxidative stress in kidney tissue were observed. We detected a moderate increase in urea and creatinine levels in the blood as a sign of a slight decrease in kidney function. The most notable changes in our study were morphometric alterations in proximal tubules and glomeruli, both of which were considerably enlarged. The short-term application of inorganic Se to rats in a supratherapeutic dose induced mild functional and ultrastructural changes in the kidneys. The dose of inorganic Se used could be considered relatively safe for shortterm application in situations where Se could be beneficial to the organism, such as the usage of known nephrotoxicants or high levels of oxidative stress in the body.

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