Comparative assessment of the effects of meso-2,3-dimercaptosuccinic acid and salinomycin on spleen function of cadmium-exposed mice
2019
Kamenova, Kalina | Gluhcheva, Yordanka | Dorkov, Petar | Ivanova, Juliana
In this study, we present experimental data on the effects of meso-2,3-dimercaptosuccinic acid (DMSA) and tetraethylammonium salt of salinomycinic acid (Sal) on cadmium-induced spleen dysfunction and altered essential metal balance in mice. Sixty-day-old male mice (ICR line) were randomly divided into four groups: untreated control group (Ctrl)—obtained distilled water for 28 days, toxic control group (Cd)—exposed to cadmium acetate dihydrate at average daily dose of 20mg/kg body weight (BW) for 14 days, Cd + DMSA group—obtained cadmium acetate dihydrate as the toxic control group followed by treatment with 20mg/kg BW DMSA for 2 weeks, and Cd + Sal group—mice exposed to cadmium acetate dihydrate at average daily dose of 20mg/kg BW for 2 weeks followed by administration of Sal at an average daily dose of 20mg/kg BW for 2 weeks. The compounds were administered orally via the drinking water of the animals. We found that cadmium exposure caused splenomegaly and reduced the hemoglobin and hematocrit levels and total red blood cell count compared with untreated controls. Cadmium intoxication of mice induced accumulation of the toxic metal ion in the blood and spleen. Alterations in the endogenous levels of calcium (Ca) and iron (Fe) in the spleen of cadmium-exposed mice compared with those in untreated controls were observed. Treatment of cadmium-exposed mice with DMSA or Sal recovered the spleen weight and hematological parameters to normal control values, decreased cadmium concentration in the blood and spleen, and improved splenic architecture. The results prove that Sal is a potential antidote for treatment of Cd-induced spleen dysfunction.
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