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SUMMARY

Kusch O.G. Morphological patterns of placenta and lymphoid tissue associated with it during the third pregnancy period (anatomic-experimental investigation). Manuscript.

Thesis for competition of a scientific degree of Doctor of Biological Sciences in speciality 14.03.01. Normal Anatomy. the State Higher educational establishment Ternopil State medical University, named after I. Ya. Gorbachevsky. MHP of Ukraine Ternopil, 2008.

The thesis is devoted to the descision of normal anatomy scientific problem, concerning of placenta and placenta associated lymphoid tissue structure patterns. Reactivity of placenta associated lymphoid tissue on antigen influence is shown. Role of dendritic cells in establishment of immunological tolerance is examined. Intimate correlation between morpho-functional state of placenta and amount of lymphocytes is settled. Innate immunity chain depended on lectinreceptor recognition is described.

On the base of modern morphological, hystochemical, lectinhystochemical and immune hystochemical methods we have examined peculiarities of women and rats placenta morphogenesis during the third period of pregnancy, depending of activation of different immunity chains. It is settled, that dendritic cells activate at the end of pregnancy when connective zone of placenta turns thinner and number of cytotoxic lymphocytes increases. All these lead to regection of immunological tolerance of maternal organism in relation to foetus.

Antigen influence notwithstanding direction of influence, weather it is on maternal or foetal organism, changes adoptive functions of placenta: weight and square of placenta increase, lacunes square and square of scincitiotrophoblast decrease, square of strome villies decreases. It is determined an exscess accumulation of fibrinoid and anti Rh immune complexes, collagens of , , V and V types. All these change the structure of foetoplacental barrier.

Revealed changes of morpho-functional condition of placenta take place on the background of placenta associated lymphoid tissue changes (augmentation of HPA+cytotoxic lymphocytes number in maternal part of placenta and SBA+Blymphocytes and CD5+lymphocytes in foetal part of placenta), which points on activation of innate immunity.

Key words: placenta, placenta associated lymphoid tissue, lymphocyte, antigen influence.

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