Abstract Title:

The Protective Effects of Probiotic Bacteria on Cadmium Toxicity in Rats.

Abstract Source:

J Med Food. 2016 Dec 15. Epub 2016 Dec 15. PMID: 27976972

Abstract Author(s):

Sinisa Djurasevic, Adel Jama, Nebojsa Jasnic, Predrag Vujovic, Milos Jovanovic, Dragana Mitic-Culafic, Jelena Knezevic-Vukcevic, Maja Cakic-Milosevic, Konstantin Ilijevic, Jelena Djordjevic

Article Affiliation:

Sinisa Djurasevic


One of the useful properties of probiotic bacteria is their capacity to bind different targets, thus eliminating them through feces. It is supposed that one of these targets could be cadmium, a widespread environmental toxicant that causes various disturbances in biological systems. This study examined the protective effects of probiotic supplementation against cadmium-induced toxicity in the rat. The experiment was conducted in the course of 5 weeks. Animals were divided into four groups: (1) controls, (2) probiotics treated, (3) cadmium treated, and (4) probiotics + cadmium treated. The cadmium concentration was measured in the blood, liver, kidney, and feces, as well as the blood alanine aminotransferase (ALT) and aspartate aminotransferase (AST) as biomarkers of the liver function. Histomorphological changes in the liver and kidney were also determined. Our results revealed that probiotics combined with cadmium increase this metal concentration in feces. As a result, blood, liver, and kidney Cd levels, as well as blood ALT and AST activities were lessened compared to the rat group treated with cadmium only. Besides, probiotics consumed simultaneously with cadmium attenuated histomorphological changes in the liver and kidney caused by cadmium. The rise in lactobacilli number in feces of rats treated simultaneously with cadmium and probiotics results in strong correlation with the increase of Cd concentration in their feces and the decrease of Cd concentration in their blood. We speculate that probiotics actively contribute to cadmium excretion through feces, probably, by its binding to their bacterial cell wall.

Study Type : Animal Study

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