Dose‑Dependent Effect of Deltamethrin in Testis, Liver, and Kidney of Wistar Rats


Affiliations

  • Bundelkhand University, Departments of Zoology, Jhansi, Uttar Pradesh, India
  • Bundelkhand University, Biomedical Sciences, Jhansi, Uttar Pradesh, India

Abstract

Objectives: Deltamethrin is a synthetic pyrethroid insecticide used worldwide in agriculture, household pest control, protection of foodstuff, and disease vector control. Although initially thought to be least toxic, a number of recent reports showed its toxic effects in mammalian and non‑mammalian animal species. The current study was performed to assess the dose‑dependent deltamethrin toxicity on testes, liver, and kidney of male Wistar rats. Materials and Methods: Twenty‑four rats were divided in four groups of 6 each. Group A served as normal control. Group B, C, and D were administered with different doses (2 or 3 or 6 mg/kg corresponding to 1/30th or 1/20th or 1/10th of LD50, respectively) of deltamethrin for 28 days. Results: Deltamethrin exposure caused a significant reduction in weight of reproductive organs, decrease in sperm count, sperm motility, serum testosterone (T), follicle stimulating hormones (FSH), and luteinizing hormones (LH) in testis. Glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), glutathione S transferase (GST), glutathione reductase (GR), glutathione peroxidase (GPx) were decreased in testis, liver and kidney of exposed rats. Deltamethrin exposure significantly increased sperm abnormalities in testis. Significant increase in lipid peroxidation (LPO) level was observed in testis, liver and kidney. Deltamethrin also caused histological alterations in testes, liver, and kidney. Conclusions: The results indicated that deltamethrin at a dose of 6 mg/kg exerts significant harmful effects on testes, liver and kidney as compare to 2 mg and 3 mg/kg. The study concluded that the system toxicity induced by deltamethrin was dose dependent.

Keywords

Deltamethrin, kidney, liver, oxidative stress, testes, Wistar rats

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