[Dynamics of histamine content in the rat uterus compartments according to the stages of the estrous cycle (a fluorescence histochemical study)].

The purpose of the present study was to detect the main histamine-containing structures of the rat uterus and to study the changes of its content during the estrous cycle. The work was performed during the autumn-winter period using 120 female rats that were divided into groups according to the stages of the estrous cycle: early estrus, late estrus, metestrus, early diestrus, late diestrus, proestrus. Cryostat sections of uterine corpus and cervix were studied using fluorescent-histochemical method with the orthophthalic aldehyde.

[Uterus sympathetic nervous apparatus in sexual cycle dynamics in rats].

Uterus sympathetic nervous apparatus in various phases of sexual cycle in rats was studied with the microspectral fluorescent method. The main part of nervous fibers in the form of perivascular plexus and terminals deviating from them are localized in myometrium. We suppose presence of reserve ("silent") nervous fibers in uterus which explains the inconstancy of their revealing in the organ.

[Bioamine-positive structures in the rat mesometrium and their changes in the estrous cycle].

The objective of this study was to demonstrate main bioamine-positive structures in rat mesometrium, to detect their spatial cooperations and to define their catecholamine, serotonin and histamin content during the sexual cycle. The study was performed in 120 female rats of reproductive age, which were divided into groups according to the stages of sexual cycle: early estrus, late estrus, metestrus, early diestrus, late diestrus, proestrus. By using the microspectrofluorometric histological methods, the following bioamine-positive structures were differentiated in rat mesometrium that were cooperated in space: sympathetic nerve fibers (containing catecholamines and serotonin), mast cells and macrophages (containing catecholamines, serotonin and histamine).

[Neuromediator bioamines in the histogenesis of corpora lutea].

The role of neuromediator bioamines in histogenesis of corpora lutea was under study. Cryostate slices of ovaries from 27 cats were treated after A. Bjorklund's fluorescent histochemical method modified by V.

[The intraorganic complex of bioamine supply (ICBS) to the ovaries: its component elements and their cooperation].

As a result of studying the bioamine-positive structures of guinea-pig ovaries an intraorganic complex of bioamine supply the ovaries (ICBS) is isolated. Among its major elements involving in synthesis, capture, functional realization, accumulation, transport, inactivation of neuromediator bioamines, (serotonin, catecholamines) are the perivasculitis sympathetic plexuses, terminals, macrophages, mast cels, blood capillaries network. The role and significance of these structures in neuromediator metabolism of the ovaries are indicated.