MACROANATOMY OF LYMPHOID STRUCTURES OF THE MESENTERIC PART OF SMALL INTESTINE IN HEALTH AND CHRONIC RADIATION SICKNESS

Abstract

Objective - to study the quantitative content of lymphoid structures of the small intestine of 8-month-old rats in health and chronic radiation sickness. Material and methods. The study was performed on 40 outbred albino male rats, weighing from 210 to 280 g. To induce chronic radiation sickness, rats were irradiated. The values of the standard deviation and the representativeness error were determined by mathematical processing. Results. When chronic radiation sickness was induced in rats in the experiment, a significant decrease in the number of aggregated lymphoid nodules (ALN) was found on the 240th day in irradiated rats compared with intact animals. A comparison of the morphological changes in the lymphoid formations of different parts of the small intestine was carried out in health and chronic radiation sickness. Conclusions. It was established that the functional activity of the lymphoid tissue of the intestine decreased after chronic exposure to radiation.

Keywords

small intestine / immune system / aggregated lymphoid nodules / nodule form / chronic radiation sickness

RIGHTS & PERMISSIONS

Khasanova D.A., Teshaev S.Z.