Extragenital Pathology and Immunocompetent Cells Relations of Lactating Breast Gland and Offspring Jejunum

Researched the effect of chronic toxic maternal hepatitis on the cytometric features of immunocompetent cells (ICCls) of mammary gland tissues of the female and the jejunum of the offspring during breastfeeding. For morphological researches, pieces of the right inguinal mammary gland of female outbred rats with heliotrine hepatitis and the jejunum of the lean intestine of the offspring on days 1, 3, 7, 15 and 21 of lactation were used. Cytometric researches were carried out on semi-thin sections stained with methylene blue and pyronin G. It was established that in the last stages of pregnancy and in the first week after the onset of lactation, there is an increase in migration to the terminal secretory sections of the mammary gland of the ICCls, which indicates the participation of the mammary glands in the transfer of adoptive immunity to offspring and in maintaining the immune homeostasis of the small intestine, which decreases as the immune apparatus of the small intestine develops. A decrease in the number of ICCls migrating to the lactating mammary gland in case of mother's CTH negatively affects both immune adaptation and the structural and functional development and maturation of the immune apparatus of the jejunum of the offspring during breastfeeding.

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