ORIGINAL ARTICLE
Year : 2015  |  Volume : 22  |  Issue : 1  |  Page : 119-124

A three generation study with effect of imidacloprid in rats: Biochemical and histopathological investigation


Department of Zoology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, Punjab, India

Correspondence Address:
Prerna Vohra
Department of Zoology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, Punjab
India
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DOI: 10.4103/0971-6580.172270

PMID: 26862272

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Objectives: This study was designed to evaluate the dose-dependent toxic effects of imidacloprid on the female ratsthat were treated through three generations (F0, F1, and F2). F2 female rats were sacrificed at the end of the experiment to see the long-term effect of imidacloprid. Materials and Methods: Rats were divided into three groups of 6 each. Group I served as control. Group II served as treated I and given 1/45th LD50 (10 mg/kg/day) of imidacloprid. Group III served as treated II and given 1/22th LD50 (20 mg/kg/day) of imidacloprid. After 60 days, oral administration of imidacloprid females were mated with normal males to get F1 and F2 generation. F2 generation female rats were sacrificed at the end of the experiment. Biochemical and a histopathological investigation was done for three groups of F2 generation and statistically analyzed by ANOVA. Results: Average feed intake of F2 female rats was significantly reduced (P < 0.01) at 20 mg/kg/day dose of imidacloprid. There was a significant increase in the activity of alanine aminotransferase, AKP, and glucose 6-phosphate dehydrogenase in Group III rats of F2 generation. There was a significant decrease in acetylcholine esterase activity in plasma and brain of both the imidacloprid treated groups. Tissue samples of liver, kidney, and brain of females of F2 generation showed histopathological condition. Conclusion: The results indicated that imidacloprid at a dose of 20 mg/kg bw/day exerts significant toxicological effects on biochemical and histological studies of F2 generation females as compare to 10 mg/kg bw/day.


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