Evaluation of Imidacloprid Induced Changes in Thyroid Gland and its Amelioration with Withania somnifera in Wistar Rats

Authors

  • Soujanya Samala Department of Veterinary Pathology, College of Veterinary Science, Rajendranagar, PVNRTVU, Hyderabad-500 030, Telangana, India,
  • Lakshman Mekala Department of Veterinary Pathology, College of Veterinary Science, Rajendranagar, PVNRTVU, Hyderabad-500 030, Telangana, India.
  • Madhuri Doppalapudi Department of Veterinary Pathology, College of Veterinary Science, Rajendranagar, PVNRTVU, Hyderabad-500 030, Telangana, India.
  • Gopala Reddy Alla Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science, Rajendranagar, PVNRTVU, Hyderabad-500 030, Telangana, India.
  • Rama Rao Department of Avian Nutrition, Directorate of Poultry Research, Rajendranagar, Hyderabad-500 030, Telangana, India.

DOI:

https://doi.org/10.48165/ijvsbt.19.5.03

Keywords:

Electron microscopy, Imidacloprid, Rats, Thyroid gland, Withania somnifera

Abstract

The study was conducted on a total of 48 female Wistar rats divided into four groups, each containing 12 rats. Group 1 was control, group  2 was imidacloprid control, group 3 was Withania somnifera control and group 4 was administered with both imidacloprid and Withania  somnifera. The rats of group 3 and 4 were subjected to oral treatment of Withania somnifera (1 gm/kg feed) for a period of 30 days to  measure the protective effect against thyroid toxicity induced by imidacloprid (30 mg/kg body weight/day for 30 days). Hormonal assays  showed a significant (p<0.05) rise in thyroid stimulating hormone and fall in triidothyronine and thyroxine in imidacloprid administered  rats when compared to control. No gross lesions were noticed in thyroid gland. Group 2 thyroid gland sections revealed congestion,  degenerated thyroid follicles with loss of colloid substance, increase in inter-follicular space, atropic follicles, fibrosis, pyknotic nuclei,  detachment of follicular epithelial cells, increase in number of micro-follicles and proliferation of follicular epithelium towards lumen.  Electron microscopy of thyroid gland from group 2 rats revealed significant pathological changes. The degree of lesions was minimal in  group 4 rats when compared to group 2 rats. These results indicate that Withania somnifera is beneficial in ameliorating the imidacloprid  induced thyroid toxicity in rats. 

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References

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Published

2023-09-10

How to Cite

Samala, S., Mekala, L., Doppalapudi , M., Alla, G.R., & Rao, R. (2023). Evaluation of Imidacloprid Induced Changes in Thyroid Gland and its Amelioration with Withania somnifera in Wistar Rats. Indian Journal of Veterinary Sciences and Biotechnology, 19(5), 16–21. https://doi.org/10.48165/ijvsbt.19.5.03