An in vivo study of the toxic effects of triclosan on Xenopus laevis (Daudin, 1802) frog: Assessment of viability, tissue damage and mitochondrial dysfunction.

Autor: Tenkov KS; Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El 424001, Russia. Electronic address: kirill.tenkove@gmail.com., Dubinin MV; Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El 424001, Russia., Vedernikov AA; Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El 424001, Russia., Chelyadnikova YA; Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El 424001, Russia., Belosludtsev KN; Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El 424001, Russia; Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow Region 142290, Russia.
Jazyk: angličtina
Zdroj: Comparative biochemistry and physiology. Toxicology & pharmacology : CBP [Comp Biochem Physiol C Toxicol Pharmacol] 2022 Sep; Vol. 259, pp. 109401. Date of Electronic Publication: 2022 Jun 25.
DOI: 10.1016/j.cbpc.2022.109401
Abstrakt: The present study describes the in vivo effect of triclosan on the frog Xenopus laevis (Daudin, 1802). We have found a dose-dependence of the effect of triclosan on the survival of frogs. At a dose of 2 mg/L, the death of frogs was observed already on the 4th day of the experiment, while at a concentration of 0.5 mg/L, the frogs remained viable for 11 days. Triclosan caused damage to the liver tissue, which was expressed in an increase in the area of hemorrhage and the number of melanomacrophage centers. 0.5 mg/L of this agent did not affect the number of frog red blood cells, but reduced their osmotic resistance. Keeping animals in water containing triclosan (0.5 mg/L for 96 h) led to the suppression of the state 3 respiration rate of frog liver mitochondria. This effect was accompanied by suppression of the combined activity of complexes II and III of the mitochondrial respiratory chain. In parallel with this, we observed a reduction in the Ca 2+ retention capacity of frog liver mitochondria, indicating a decrease in the resistance of organelles to mitochondrial permeability transition pore opening. The paper discusses the effects of triclosan on aquatic organisms.
(Copyright © 2022 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: