Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 24, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/ijms241512290
Keywords
Danio rerio; detoxification; probiotic; neonicotinoids; Lactobacillus brevis; lactic acid bacteria; histology; histomorphometry
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In this article, the potential mitigation of imidacloprid toxicity on Danio rerio by Lactobacillus brevis 47f was examined. It was found that even sublethal concentration of imidacloprid could lead to fish death, but the use of Lactobacillus brevis 47f partially reduced the toxic effects. The kidneys were the most affected organs, and the combined action influenced the pro/anti-inflammatory cytokines.
In the present article, the possible mitigation of the toxic effect of imidacloprid low-concentration chronic exposure on Danio rerio by the probiotic strain Lactobacillus brevis 47f (1 x 10(8) CFU/g) was examined. It was found that even sublethal concentration (2500 & mu;g/L) could lead to the death of some fish during the 60-day chronic experiment. However, the use of Lactobacillus brevis 47f partially reduced the toxic effects, resulting in an increased survival rate and a significant reduction of morphohistological lesions in the intestines and kidneys of Danio rerio. The kidneys were found to be the most susceptible organ to toxic exposure, showing significant disturbances. Calculation of the histopathological index, measurement of morphometric parameters, and analysis of principal components revealed the most significant parameters affected by the combined action of imidacloprid and Lactobacillus brevis 47f. This effect of imidacloprid and the probiotic strain had a multidirectional influence on various pro/anti-inflammatory cytokines (IL-1 & beta;, TNF-& alpha;, IL-6, IL-8). Therefore, the results suggest the possibility of further studying the probiotic strain Lactobacillus brevis 47f as a strain that reduces the toxic effects of xenobiotics. Additionally, the study established the possibility of using imidacloprid as a model toxicant to assess the detoxification ability of probiotics on the kidney and gastrointestinal tract of fish.
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