MORPHOLOGICAL CHANGES IN RAT LIVER STRUCTURE DURING CENTRAL DEPRIVATION OF LUTHEINIZING HORMONE SYNTHESIS AT 365TH DAY OF EXPERIMENT

Rud M. V., Shepitko V. I., Stetsuk Ye. V., Akimov O.Ye.

MORPHOLOGY

Scentific article

Macrophages play a central role in both tissue homeostasis and inflammation. Understanding the origin, development and involvement of tissue-resident macrophages in the regulation of homeostatic processes is fundamental to the development of future intervention strategies to modulate macrophage functions in specific areas. Resident liver macrophages include Kupffer cells, which together with sinusoidal cells and Ito cells form a significantpopulation of non-parenchymal, antigen-presenting cells. The androgen / androgen receptor (AR) interaction plays a role in the development of the liver in the embryonic stage, the maximum dimorphism of the effects of androgen / AR occurs after puberty due to the activity of the hypothalamic-pituitary-gonadal axis. Quercetin effect on the inflammatory process is explained by the blockade of the lipoxygenase pathway of arachidonic acid metabolism, reduced synthesis of leukotrienes. The aim of our study was to determine the qualitative and quantitative changes in Kupffer cells during chemical castration of male rats of central origin, which was caused by the introduction of a solution of triptorelin acetate. And also to elucidate the results of the quercetin action on antigen-presenting liver cells on the background of the effects caused by the use of triptorelin solution. The experiments were performed on 30 adult male white rats. Rats were divided into 3 groups: control (10), experimental 1 (10) and experimental 2 (10). Animals from experimental group 1 were injected subcutaneously with triptorelin acetate at a dose of 0.3 mg of active substance per kg of body weight. Animals from experimental group 2 received triptorelin acetate in the same dosage and quercetin 100 mg per kg body weight 3 times a week. Changes in the liver of animals from group 1 occur on cellular and subcellular levels, causing minor venous stasis, erythrocyte sludge and macrophage infiltration. Concomitant oral administration of quercetin minimizes structural and morphological changes in rat liver tissue by increasing the antioxidant protection of liver tissue.

resident macrophages, liver, triptorelin acetate, quercetin, rats.

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«Bulletin of problems biology and medicine» Issue 2 Part 2 (165), 2022 year, 151-155 pages, index UDK 616.36:612.018:599.323.4:612.08

10.29254/2077-4214-2022-2-2-165-151-155