The aim of the research was to identify the frequency of development of the syndrome of post-exercise bronchial spasm in patients with asthma against physical load and the study of clinical-functional features of its course. 197 patients (122 women and 75 men) with mild persistent partially controlled and uncontrolled asthma were observed. The mean age of the patients was 36.1±0.73 years old; the mean height was 168.8±0.63 cm; the mean weight was 74.6±1.03 kg. The patients did not have strong obstructive disorders of the ventilation pulmonary function; forced expiratory volume for the first second (FEV₁) was 91.6±2.5% from the predicted value. All the patients had clinical-anamnestic test and the assessment of apnoea degree by the scale of mMRC and identification of disease control by validated questionnaire Asthma Control Test; the airway response was evaluated in reaction to dosed physical load calculated and fulfilled at the research complex for ergospirometric studies OxyconPro (VIASYS Healthcare, Germany); basic study of the lung function at the device Easyone-PC (Switzerland) was done. As a result of the study post-exercise bronchial spasm was diagnosed in 18.3% of patients with asthma. Close positive correlation between the baseline FEV₁ (in %) and bronchial response to the dosed physical load measured at the first minute of the recovery period (r=0.19; р<0.05) as well as the intensity of the further bronchial response at the 10^th minute of the recovery period (r=0.19; р<0.05) was registered. The intensity of bronchial response at the 10^th minute of the recovery period in patients with airway hyperresponsiveness to dosed physical load was directly related with the degree of asthma control (r=0.56; р˂0.05). It was found out that the degree of the asthma control correlated with the airway hyperresponsiveness to physical load.

The cell pattern of bronchi inflammatory infiltrate has a significant impact on the course of the disease and may affect the achievement and maintenance of the asthma control. The aim of the study was to determine the influence of neutrophilic component of the bronchial inflammation on the asthma control, lung function and airway responsiveness. 114 patients with mild persistent asthma were assessed upon the level of the asthma control by Asthma Control Test (ACT); lung function (FEV₁) by spirometry; airway responsiveness (∆FEV₁) to 3-minute isocapnic hyperventilation with cold air (-20ºС) (IHCA) and 3-minute ultrasound inhalation with distilled water (IDW). The cell composition of the induced sputum (IS) was also studied. The patients were divided into groups with low contents of neutrophils in IS (39 people; 1^st group) and with high contents of neutrophils (75 people, 2^nd group). The contents of neutrophils in the 1^st group was 10.9±0.53%, eosinophils - 19.4±2.1%; in the 2^nd group - 29.9±1.6% (р=0.0001) and 20.4±1.4% (р=0.66), respectively. By ACT data the people of the 2^nd group managed their disease worse than in 1^st group (15.0±0.6 and 19.0±0.8 points, respectively; р=0.0001). They also had lower FEV₁ (88.0±2.0 and 96.7±2.4%; р=0.009) and more intensive airway response to IHCA and DW (-13.7±1.7% and -11.2±1.9%, respectively) in comparison with the 1^st group (-2.7±0.86%; р=0.0001 and -5.3±1.90%; р=0.055). The patients of the 2^nd group had a close correlation between baseline neutrophils in IS and ∆FEV₁ in response to IHCA (r=-0.22; р=0.045) as well as the content of myeloperoxidase in IS (r=0.31; р=0.0008). A level of myeloperoxidase in IS correlated with ∆FEV₁ in response to IDW (r=0.29; р=0.030) in these patients. The increase of neutrophilic component of inflammation in asthma patients worsens the asthma control, lung function and enhances airway responsiveness to exogenous stimuli.

High relative humidity of the air caused by frequent unfavourable weather (fog, flooding, daily fluctuations of temperature) is one of the triggers of bronchial constriction that significantly worsens the course of asthma and leads to the increased number of hospital admission. The people with osmotic airway hyperresponsiveness are expected to have the changes in the quality of life in the seasons of the year with high air humidity. The aim of the research was to reveal the features of general and specific quality of life of patients with osmotic airway hyperresponsiveness in contrast seasons of the year. 65 patients of asthma were examined with the questionnaires of SF-36, AQLQ, HADS. High frequency of anxious depression disorders in patients with osmotic hyperresponsiveness and the suppressive effect of anxiety on the low self-esteem of general and specific quality of life in this group in dry season were found. The dominating influence of high humidity on all aspects of quality of life was shown. In blight and humid period of the year the dependence of the majority of components of general and specific quality of life from each other is neutralized and the influence of anxiety on the self-esteem of health fully disappears.

Official ten-year statistics reports on the prevalence and structure of respiratory diseases in children and teenagers of Khabarovsk Kray were analyzed. Respiratory diseases still rank first in the general sick rate and, in 2015, they accounted for 60.3% in children under 14 years old and 33.4% in teenagers. General respiratory morbidity in children in 2015 made 1300.1‰ and 726.9‰ in children and teenagers, respectively. Analytical results give evidence of stabilization of morbidity rate in children (R=0.32) and a tendency towards increasing incidence in teenagers (R=0.71). Ten-year pneumonia prevalence in children shows no tendency towards decrease (R=0.3), whereas pneumonia incidence rate in teenagers does increase (R=0.65). During the last ten years, asthma prevalence in children of the region increased twofold and turned half as much in teenagers. In 2015, asthma morbidity made 23.95‰ in children and 17.15‰ in teenagers, which exceed all-Russia’s figures (10.4‰ in children and 20.08‰ in teenagers in 2014) and Russian Far East’s figures (9.22‰ in children and 15.38‰ in teenagers in 2014). Asthma children residing in the areas of catastrophic flood of 2013 on the Amur River were found (8.3% of cases) to have sensitization to mold fungi, primarily of Aspergillus niger species (71%). The results of the analysis show that there is a stabilization of morbidity in children (R=0.32) and a tendency to grow in teenagers (R=0.71).

The results of the research of nano- and microparticles of atmospheric suspensions which were in the snow of Birobidzhan and the Reserve Bastak in the winter of 2013/2014 by means of laser granulometry and mass spectrometry of high resolution with inductively connected plasma are given in the work. It is shown that there are technogenic microparticles (up to 72.4%) of ecologically significant quantities in atmospheric suspensions of Birobidzhan. The influence of combined heat and power plant and motor transportation junctions on qualitative structure of atmospheric suspensions has been revealed. It is noted that the air in Bastak also contains a significant amount (to 66.3%) of particles up to 10 microns. The analysis of qualitative structure of atmospheric suspensions of Birobidzhan confirms its status as a city with the expressed level of microdimensional pollution of the atmosphere. It is important to note that Birobidzhan negatively influences the structure of the atmospheric suspension of the Reserve Bastak.

The article is devoted to the research of atmospheric suspensions in Pogranichniy settlement using laser granulometry methods. It is shown that the atmosphere of this settlement is scarcely polluted with particles under 10 µm (PM₁₀). Only at 3 sampling points out of 11 we found dangerous to health microparticles in significant quantities: from 17.4 to 24.9%. Large particles sized above 400 µm prevail on the overall territory of the settlement amounting to 78.1%.

The purpose of this research was to study the possibility of using of food products from a mixture of Hypericum perforatum (HP) and Rhodiola rosea (RR) for the stimulation of the body's compensatory responses to the conditions of high and low temperatures. Experiments have been conducted on experimental animals (150 white mongrel rats) in accordance with generally accepted methodological approaches. Antioxidant effects in the organism of white rats have been studied at the initiation of the processes of lipid peroxidation by the introduction of carbon tetrachloride. We were determined the products of lipid peroxidation (diene conjugates, hydroperoxides of lipids, malonic dialdehyde) for the evaluation of antioxidant effect in accordance with generally accepted methodological approaches. Researches of cold and heat adaptation reactions of experimental animals have been conducted by using the model of a long cold and heat action with appropriate climatic chambers. It was established experimentally that in doses of 150-300 mg/kg daily of the studied mixture has a strong antioxidant effect in the conditions of cold and heat stress on warm-blooded organism. The research allows to recommend a mixture of HP and RR as а regulator of adaptive reactions of the organism when exposed to low and high temperatures.

The features of renal hemodynamics in 90 patients with multiple myeloma (MM) at different stages of tumor progression have been studied. The signs of renal hemodynamics disorder by ultrasound Dopplermetry data are already revealed at the first stages of MM. In the I and IIA stages there were diagnosed the following changes: the increase in average blood flow velocity (Vave) at the level of the interlobular arteries (20%); the reduction of peak systolic velocity (Vmax) at the level of arteries arc (11.4%); the drop of Vmax (24.5%), of Vave (11%), of diastolic velocity (Vmin) by 26% on interlobular arteries; the decrease of Vmin (26%) on segmental and main renal arteries. There was also revealed an increase in the indices of vascular resistance index (IR by 11%, IP by 13%) and main renal arteries (IR by 12%, IP by 16%). Under disease progression in IIIA stage there was: the growth of Vmax (21.5%), Vave (24.9%), Vmin (42.7%) on interlobular arteries; the decrease of Vave (24.8%), Vmin (51.5%) on interlobular renal arteries. The decrease of IR on interlobular arteries (9%) and its increase at the level of segmental and main renal arteries (11%) were diagnosed. The biggest changes in the blood flow by Dopplermetry data were diagnosed in MM patients at chronic renal disease (IІ and IIIB stages): the reduction of speed indicators on interlobular arteries - Vmax (26%), Vave (42%), Vmin (44%); on arc arteries - Vmax (29%), Vave (21%), Vmin (38%); on interlobar arteries - Vmax (30%), Vave (39%), Vmin (46%); on segmental arteries - Vmax (17%), Vave (22%), Vmin (42%); on the main renal artery - Vmax (11%), Vmin (33%). An increase in the indices of vascular resistance was revealed: IR on interlobular arteries (11%), the arc arteries (12%), interlobular arteries (11%), segmental arteries (13%), the main renal arteries (11%); IP on interlobular arteries (13%), the arc arteries (12%), interlobular arteries (13%), segmental arteries (12%), the main renal arteries (12%). These parameters correspond to Doppler criteria of chronic renal insufficiency of compensated stage.

The features of postnatal development in 160 women with physiologic course of pregnancy and with chronic placental insufficiency in the second trimester of pregnancy in the patients infected with the herpes simplex virus type 1 (HSV-1) were studied. The first group (the control group) included 30 women with physiologic course of pregnancy. The second group had 41 patients with chronic placental insufficiency of herpes etiology. The third group consisted of 89 women with chronic placental insufficiency and the threat of premature delivery caused by HSV-1. It was found out that in neonatal period of development and in the course of the first year of life the patients of the third group unlike the women of the second group oftener had bottle feeding (30.3 and 9.8%, respectively, р<0.05) and the period of breast feeding of less than 6 months (39.3 and 14.6%, respectively, р<0.05), and in the early childhood and infancy there was the combination of chicken pox and Botkin’s disease (39.3 and 7.3%, respectively, p<0.05), as well as enteritis and enterocolitis (28.1 and 7.3%, respectively, р<0.05). The women in the third group unlike the patients of the second group in the early childhood oftener had acute respiratory virus infections (40.4 and 14.6%, respectively, р<0.05) and lymphadenopathy (37.1 and 12.2%, respectively, р<0.05), and in the school and middle age there was algodismenorrhea (34.8 and 12.2%, respectively, р<0.05), cervical erosion (56.2 and 24,4%, respectively, р<0.05), a big number of gynecological operations (21.3 and 4.9%, respectively, р<0.05) and chronic rhinitis (47.2 and 19.5%, respectively, р<0.05). In the third group unlike the second one the signs of the secondary immunodeficiency prevailed. They were revealed through early infecting with VSH-1 (26.9 and 7.3%, respectively, р<0.05%), reactivation (identification of IgM to HSV-1) of chronic herpesvirus infection (21.3 and 4.9%, respectively, р<0.05%), thrush (16.9 and 2.4%, respectively, р<0.05) and relapsing course of Herpes labialis (22.5 and 4.9%, respectively, p<0.05). We suggest an important role of immunodeficiency in pathogenesis of the threat of premature delivery of herpes virus genesis in the second trimester of gestation and the necessity of the use of immunomodulatory medications for its treatment.

At full-term pregnancy the level of anti-influenza antibodies in 126 pairs “mother-child” at influenza A(H3N2) in the first trimester of gestation was studied. The first group (comparison) was made of 40 pairs “mother-child” at pregnancy not complicated with acute respiratory virus infection, but with exacerbation of somatic diseases as well as moderate and severe somatic and obstetric pathology. The second group consisted of 43 pairs “mother-child” with influenza infection with antibody titer 1:4-1:16; the third group had 41 pairs “mother-child” with influenza А(Н3N2) with antibody titer 1:8-1:32; the fourth group had 42 pairs “mother-child” with influenza infection (antibody titers were 1:32-1:128) associated with the threat of miscarriage at early stages of gestation. It was found out that in the second group in 80% of cases mothers had higher titers of anti-virus antibodies in comparison with the titers of their children; in 12.5% of cases there were equal titers of antibodies in maternal and umbilical blood. In the second and the third groups unlike the first one there was a tendency to the decrease of a number of pairs that had higher titers of antibodies in mothers and there was an increase of pairs with equal titers of anti-virus antibodies. In the fourth group the number of pairs with domination of titers of anti-influenza antibodies increased till 28.6% in children in comparison with the titers in their mothers (in the second group it was in 4.7%, р<0.05), which suggested antenatal infecting of full term newborns.

The work was carried out to study the processes of lipid peroxidation, antioxidant defense, the content of phospholipase A₂, the main structural phospholipids (phosphatidylethanolamine, phosphatidylcholine and its lizoform) in the peripheral blood of women with reactivation of chronic cytomegalovirus (CMV) infection in the III trimester of gestation depending on the titer of IgG antibodies to CMV. The method of random sample was used to select 90 pregnant women. The study group consisted of 60 pregnant women with exacerbation of chronic CMV infection in the third trimester. It was divided into two subgroups: subgroup A (30 women with active CMV infection, the titer of IgG antibodies to CMV was 1:1600); subgroup B (30 women with latent CMV infection, the titer of IgG antibodies to CMV was 1:800). The control group consisted of 30 healthy pregnant women who matched the study group by the period of gestation and age. It was found out that lipid metabolism imbalance in plasma and erythrocytes of the peripheral blood was one of the reasons for progression of the pathological process of CMV infection in pregnant women. Changes in the composition of erythrocyte membrane phospholipids, i.e the reduction of phosphatidylethanolamine by 22% (p<0.001), of phosphatidylcholine by 23% (p<0.001), an increase in the content of lysophosphatidylcholine by 34% (p<0.001), are regarded as membrane destabilizing processes. Their development is caused by uncontrolled free radical reactions leading to the initiation of peroxidation of cell membrane lipid oxidation (the increase in the concentration of TBA-active products by 78% (p<0.001), and the activation of lipolytic enzymes (increased concentration of phospholipase A₂ by 60% (p<0.001). These changes occur against the oppression of antioxidant protection (reducing the concentration of α-tocopherol by 26% (p<0.001). The rate of change of lipid metabolism in these structures as manifestations of membrane destructive phenomena depends on the titer of IgG antibodies to CMV and is most pronounced when there is the active form of CMV infection (titer IgG antibodies to CMV is 1:1600). The mentioned pathological processes taken together aggravate the condition of pregnant women with CMV infection and create a favorable background for further progression of the pathological process, which greatly burdens the prenatal period and childbirth. The results obtained allow us to establish the important role of lipid metabolism disorders in the pathogenesis of CMV infection, which can be the basis for the expansion of the diagnostic and therapeutic base for this pathology of pregnant women.

The aim of the study is to define the role of abnormalities in the formation of estriol hormones in the development of hormonal dysfunction of fetoplacental system. There were examined 39 placentas from women with exacerbation of chronic cytomegalovirus infection at the third trimester of pregnancy and IgG antibody titer 1:1600 and 30 placentas from women with latent CMV infection and titer 1:400. The activity of androstenedione dehydrogenase was found out with histochemical method on cryostat sections of freshly frozen tissues of placentas by Lloyd’s method. The assessment of intensiveness of histochemical reaction was done with cytophotometric method by Scion program. Estradiol in homogenate of placenta was measured with immune-enzyme method. The quantity of nuclei of placenta syncytiotrophoblast in the state of apoptosis was done with cytophotometric method on paraffin sections stained by ISEL method. By the results of the study the exacerbation of CMV infection at the third trimester of pregnancy leads to the decrease of intensiveness of histochemical reaction in placentas to androstenedione dehydrogenase till 32.1±2.88 pixel/mcm² (at the latent course it is 54.2±4.31 pixel/mcm², р<0.001), and in homogenate of placenta to the decrease of estradiol till 18443.2±117.53 pmole/l (at the latent course of the disease it is 28977.7±158.13 pmole/l, p<0.001), on paraffin sections in syncytiotrophoblast by the increase of nuclei number in the state of apoptosis till 5.0±0.03% (at latent course of the disease it is 1.2±0.001%, р<0.001) and vacuole formation, which leads to destructive damages of syncytiotrophoblast cytoplasm. The obtained results prove that the exacerbation of CMV infection at the third trimester of pregnancy causes the decrease of estriol hormones formation, which is accompanied by the damage of morphostructure and exchange processes in cell elements of placenta.

The aim is to analyze androstenediol converting in villous chorions at gestation against cytomegalovirus infection activation during the first trimester of pregnancy. 48 villous chorions samples taken during medical abortion at 8-10^th weeks of gestation of women with chronic cytomegalovirus reactivation during pregnancy became the material for study, and 35 villous chorions samples were taken as the control. The results of pregnant women examination were analyzed from the point of cytomegalovirus infection activity with immune-enzyme method by the presence of IgM antibodies or by the value of 4-times and more growth of IgG antibodies titer in paired sera in dynamics in 10 days. IgG avidity index to cytomegalovirus was more than 75% in all women. Androstenediol converting was assessed with histochemical methods. Quantitative evaluation of the reaction products was carried out on sections under the microscope MT (Japan) associated with software-hardware complex «SCION Corporation» (USA). Histochemical reaction product of the androstenediol dehydrogenase was well detected in cyto- and syncytiotrophoblast of chorious villi. Reaction activity in the material from women with reactivation of cytomegalovirus infection during pregnancy was low, which indicated a reduction in the reserve for the synthesis of estrogen. The concentration of estriol and estradiol in villous chorions during reactivation of cytomegalovirus infection decreased till 24.9±2.01 nmol/l and 15765.1±107.77 pmol/l, respectively.

The aim of the research was to study some indices of morphofunctional state of lymphocytes in the peripheral blood under a complicated course of pregnancy in women of Khabarovsk. 96 women were examined in different trimesters of gestation. Two main groups depending on the type of complications were formed: the first group consisted of pregnant women with vaginitis, the second group had women whose pregnancy was complicated with clinical manifestations in the form of edemas, proteinuria and hypertensive disorders. The group of comparison included the women without complications. In the peripheral blood of the women under study with the method of high tech automated digital system of blood smear test VISION HEMA there was done a morphometric assessment of lymphocytes and with histochemical methods there was found a level of fermentation activity of succinate dehydrogenase (SDH), α-glycerophosphate dehydrogenase (α-GPDH) and lactate dehydrogenase (LDH). By morphometric studies of lymphocytes of the peripheral blood in pregnant women of the first group in the III trimester of gestation the indices of the square of the cell, of cytoplasm, cytoplasm brightness, the square of the nucleus and the brightness of the nucleus were 102.33±9.83 mсm², 36.84±4.88 mсm², 181.39±6.94 units of optical density, 65.69±6.87 mсm², 97.44±6.88 units of optical density, respectively (in the group of the comparison these data were 121.31±4.44 mсm²; 46.14±2.52 mсm²; 167.74±3.44 units of optical density; 75.33±2.66 mkm², 88.00±3.36 units of optical density, respectively). In the second group of women the same data in the same period of pregnancy corresponded to the following values: 128.44±4.89 mсm², 57.15±3.87 mсm², 173.53±4.65 units of optical density, 70.95±3.39 mсm² and 91.13±4.93 units of optical density (in the group of comparison there were the following data: 109.92±3.57 mсm², 39.63±1.53 mсm², 158.96±2.63 units of optical density, 75.37±3.23 mсm², 82.16±2.58 units of optical density, respectively). By the results of histochemical studies the level of activity of enzymes SDH, α-GPDH, LDH in the first group of pregnancy was 15.38±2.10, 10.72±0.58 and 20.53±2.36 pellet/cell, respectively. And just the other way round in pregnant women of the second group there was revealed a statistically reliable suppression of fermentation activity of these enzymes: 9.11±0.75 (p<0.05); 9.61±1.06 (p>0.05); 8.31±1.20 (p<0.05) pellet/cell in regard to the data in the group of comparison (12.84±1.21; 12.18±1.13 and 13.09±0.78 pellet/cell, respectively). Thus the changes of morphometric indices characterizing parameters of the cell, the nucleus and lymphocytes cytoplasm in a complex study with their fermentation activity can be extra diagnostic criteria of the formation of different complications during pregnancy. The obtained data allow to justify in-time application of medications for the correction of metabolic disorders of immune competent cells with the aim to decrease unfavorable perinatal outcomes.

Qualitative and quantitative assessment of microbes making the microbiocenosis of genital tract in women with inflammatory and proliferative diseases of cervix using Femoflor-16 test was the aim of the research. Scrapings of cervix and vaginal fornix in 100 women of reproductive age with cervicitis, vaginitis and in 31 women with cervical pseudoerosion (ectropion) were studied. The control group consisted of 35 relatively healthy women preparing for pregnancy. Cervical and vaginal dysbiosis was found in women with inflammatory diseases of cervix in 37.0% of cases, in women with pseudoerosion in 32.2% of cases. These are 3.3 (р<0.005) and 2.8 (р<0.02) times as much as in the group of healthy women preparing for pregnancy (11.1%). Dysbiosis structure was represented primarily by obligate anaerobic agents such as Gardnerella vaginalis, Atopobium vaginae, Eubacterium spp. in association with other opportunistic bacteria that are clinically most significant microorganisms colonizing female genital tract. Mycoplasma and yeast-like fungi of Candida species were found primarily with anaerobes. Aerobic and mixed dysbiosis were only found in 7% of cases in women with inflammatory diseases. Femoflor-16 test is a readily available, fast, efficient, up-to-date method enabling one to begin with early adequate antibacterial therapy and monitor it.

A special attention is paid to thyroid gland functioning during pregnancy. It is explained by the fact that pregnancy is a powerful factor which can lead to a manifestation of diseases of the thyroid gland. Cells of the thyroid gland are capable to acquire iodine from food and to synthesize the thyroid hormones participating in all exchange processes both of a pregnant woman and the fetus. For the purpose of studying the features of functioning of the thyroid gland and a number of metabolic processes from ecological positions (in the conditions of city and rural areas) and terms of gestation, 945 pregnant women of the Amur region were examined. Insufficiency of iodine in blood at 95.3% of inhabitants of the city area and at 98.7% of women of rural areas was revealed. It was mainly very severely expressed (47.9 and 55.5%, respectively). Taking into account these data, the assessment of a functional state of the thyroid status was done. Some indicators of lipid profile and carbohydrate ranges were defined. Disturbance of functional activity of mitochondrial dehydrogenases of immunocompetent cells (lymphocytes) in pregnant women of the Amur region in the form of oxidation-reduction reactions imbalance were revealed, which as a whole can badly influence the course of pregnancy and its outcome.

At research of blood plasma by scanning electronic microscopy in group of 67 practically healthy inhabitants of Blagoveshchensk in 77.6% of cases asymptomatic bacteremia, i.e. translocation of elementary bodies of L-forms bacteria was found out and only in 22.4% of the citizens it was not visualized. The same changes were also revealed in 2 practically healthy gold miners working in difficult environment. Presumably, the translocation of elementary bodies of bacteria occurs owing to the moderate infringement of microbic landscape of thick intestines and insignificant dysfunction of intestines barriers, and it inherently proves poor health of respondents.

The article presents a brief review of literature which shows the characteristic of bronchopulmonary and cardiovascular diseases that most often cause secondary absolute hypoxic erythrocytosis. The information about pathogenesis of blood changes at this nosology is given. The principles of differential diagnosis between secondary absolute hypoxic erythrocytosis and chronic myeloproliferative diseases, i.e. polycythemia vera and idiopathic myelofibrosis in erythremia stage are set. As an example three clinical cases of personal experience of the authors are given: 1) the patient who developed hypoxic erythrocytosis against chronic pulmonary heart disease formed due to a combination of COPD and Pickwick syndrome and "sleep apnea"; 2) the patient admitted to hospital initially only in connection with changes in the blood (erythrocytosis) for differential diagnosis and who was revealed to have arteriovenous malformation of the lung vessels; 3) the case of primary pulmonary hypertension diagnosis in a young patient with multiple comorbidities.

The article analyzes the importance of estrogen during pregnancy. The mechanism of hormones effects is summarized. The effect of estrogen on utero-placental blood flow, its necessity to run tissue morphogenesis in placenta and uterus, the impact on other steroid and protein hormones production, stimulating effect on 11β-hydroxysteroid dehydrogenase work, regulation of LDL expression are studied. The growth factors that are mediators of estrogen are shown. There was made a conclusion that in early pregnancy estrogens contribute to morphological and functional growth, development and differentiation of placenta and in the second half of pregnancy estrogens stimulate functional maturation. Furthermore, hormones play an important role in the development of lung, kidney, liver, ovarian follicles, fetal bone and promote the formation of different changes in the mother necessary for the maintenance of pregnancy.

In this work characteristics of modern trends in bioprinting and 3D bioprinting of tissues and organs of the respiratory system are presented. The attention is also drawn to the definition of concepts of bioprinting and 3D bioprinting in the foreign literature. Modern types of bioprinting, their disadvantages and prospects of development in the field of functional respiratory organs creation have been discussed. Special attention is given to the process of bioprinting of artificial trachea and bronchi as well as to the creation of the air-blood barrier.