Toxicological Study and Oxidative Stress Evaluation for Safety Assessment of Bacillus thuringiensis Vip3Aa16 Toxin in Adult Mice

Toxicological Study and Oxidative Stress Evaluation for Safety Assessment of Bacillus... Vegetative insecticidal proteins were produced by some Bacillus thuringiensis strains and were successfully used in biological control against different agricultural pests such as Lepidoptera. To assess the safety of Vip3Aa16 toxins in mammalian organisms, we evaluated their toxicity using histological, hematological, and oxidative stress parameters on albino Swiss mice. The animals were orally treated with 2500, 5000, 7500 milligrams (mg) of the toxin/kilogram (kg) of body weight for 14 days. Then samples of blood, kidney and hepatic tissues were collected at the end of the treatment. Hematological parameters were monitored by RBC, WBC, hemoglobin, hematocrit, MCV, MCH, and MCHC. Liver and kidney MDA, SOD, vitamin C and H2O2 were analyzed to assess oxidative damage. Hepatotoxicity was monitored by analysis of the plasma enzymes ALT and AST and bilirubin levels. Renal toxicity was tested by urea, uric acid and creatinine evaluation. The histopathology of kidney and liver tissues was also investigated. The results of the toxicological study revealed that the Vip3AaA16 has no lethal effect since no mortality was observed at any dose. Moreover, body weight, hematological, histological, biochemical and oxidative findings showed no significant differences between treated and control groups. All these findings confirmed that this toxin is highly safe and doesn’t represent any risk on animal health and subsequently, Vip3Aa16 toxin can be safely used in biological programs to control Lepidopteran pests attacking crops around the world. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Peptide Research and Therapeutics Springer Journals

Toxicological Study and Oxidative Stress Evaluation for Safety Assessment of Bacillus thuringiensis Vip3Aa16 Toxin in Adult Mice

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Publisher
Springer Netherlands
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Life Sciences; Biochemistry, general; Animal Anatomy / Morphology / Histology; Polymer Sciences; Pharmaceutical Sciences/Technology; Pharmacology/Toxicology; Molecular Medicine
ISSN
1573-3149
eISSN
1573-3904
D.O.I.
10.1007/s10989-016-9573-1
Publisher site
See Article on Publisher Site

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