THE DELTAMETHRIN EFFECT ON THE FUNCTIONAL ACTIVITY OF THE THYROID GLAND IN MOUSE-LIKE RODENTS WITH A SINGLE EXPOSURE

УДК: 612.44:612.018:577.175.44 DOI: 10.31588/2413_4201_1883_2_255_371

Authors

  • E.A. Chigrinski. FSBEI HE «Omsk State Medical University»
  • L.K Gerunova FSBEI HE «Omsk State Agrarian University named after P.A. Stolypin»
  • T.V. Gerunov FSBEI HE «Omsk State Agrarian University named after P.A. Stolypin»
  • P.P. Zolin FSBEI HE «Omsk State Medical University»

Keywords:

thyroid gland, thyroid hormones, synthetic pyrethroids, deltamethrin, northern red-backed vole, rats

Abstract

The research was aimed at evaluating the functional activity of the thyroid gland in mouselike rodents in the case of single exposure to toxic doses of a synthetic pyrethroid deltamethrin.
Deltamethrin at a dose of 1/2 LD50 (43.5 mg/kg body weight for rats and 18.75 mg/kg for northern
red-backed voles) caused thyroid hypofunction in mouse-like rodents, which was manifested by a
decrease in the level of thyroid hormones in the blood serum. Secretion of thyroid-stimulating
hormone increased in rats compensatorily. When male northern red-backed voles were exposed to
deltamethrin, an increase in the ratio of T4/T3 was noted. When rats and female northern red-backed
voles were exposed to the substance, this ratio did not change

Author Biographies

E.A. Chigrinski., FSBEI HE «Omsk State Medical University»

Candidate of Biological Sciences, Associate Professor

L.K Gerunova, FSBEI HE «Omsk State Agrarian University named after P.A. Stolypin»

Doctor of Veterinary Sciences, Professor

T.V. Gerunov, FSBEI HE «Omsk State Agrarian University named after P.A. Stolypin»

Doctor of Biological Sciences, Associate Professor

P.P. Zolin, FSBEI HE «Omsk State Medical University»

Candidate of Medical Sciences, Associate Professor

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Published

2026-08-26