The acute systemic toxicity of thallium in rats produces oxidative stress: attenuation by metallothionein and Prussian blue

Autor: Sergio Montes, Marisela Méndez-Armenta, Laura Anaya-Ramos, Sara García-Jiménez, Verónica Baron-Flores, Antonio Monroy-Noyola, Camilo Ríos, Yoshajandith Aguirre-Vidal, Araceli Diaz-Ruiz
Rok vydání: 2021
Předmět:
Zdroj: BioMetals. 34:1295-1311
ISSN: 1572-8773
0966-0844
DOI: 10.1007/s10534-021-00343-8
Popis: Thallium (TI) is one of the most toxic heavy metals. Human exposure to Tl occurs through contaminated drinking water and from there to food, a threat to health. Recently, environmental contamination by Tl has been reported in several countries, urging the need for studies to determine the impact of endogenous and exogenous mechanisms preventing thallium toxicity. The cytoprotective effect of metallothionein (MT), a protein with high capacity to chelate metals, at two doses (100 and 600 µg/rat), was tested. Prussian blue (PB) (50 mg/kg) was administered alone or in combination with MT. A dose of Tl (16mg/kg) was injected i.p. to Wistar rats. Antidotes were administered twice daily, starting 24h after Tl injection, for 4 days. Tl concentrations diminished in most organs (p
Databáze: OpenAIRE