MORPHOMETRIC CHARACTERISTICS OF PLACENTA IN WOMEN WITH PREECLAMPSIA AND OBESITY COMPARED TO WOMEN WITH NORMAL BODY WEIGHT.

OBJECTIVE: The aim: to investigate the morphometric characteristics of placentas in women with comorbidity of preeclampsia and obesity compared to women with physiological body weight, and to assess the efficacy of the prophylactic therapy course developed to prevent the occurrence of preeclampsia in pregnant women with obesity. PATIENTS AND METHODS: Materials and methods: 25 biopsy samples of placental tissue were taken from women between 37 and 40 weeks of gestation with a physiological body weight and with class II obesity. The women were divided into five groups of five women in each: the 1st group included women with physiological body weight without obstetric and somatic pathology; the 2nd group involved women with physiological body weight, whose pregnancy was complicated with preeclampsia; the 3rd group was made up of women with class II obesity whose pregnancy was complicated with preeclampsia; the 4th group consisted of women with class II obesity, who received the special prophylactic therapy course, and the 5th group included women with class II obesity, who did not receive the prophylactic therapy course. RESULTS: Results: The analysis of morphometric parameters of placenta samples taken from women with preeclampsia and obesity demonstrates a number of com-pensatory and adaptive changes in placenta under hypoxic conditions, and the most important of them include a significant decrease in the number and the mean diameter of the terminal villi, the reduction of volume of villious tree, an increase in the diameter of the capillaries of terminal villi. The morphometric parameters and histological structure in placenta samples from women with obesity, who received the special the prophylactic therapy course, as well as in placenta samples of the control group were similar to the gestational normative values. CONCLUSION: Conclusions: The morphometric investigation of placenta samples taken from women with comorbidity of preeclampsia and obesity has shown a significant decrease in the mean diameter of the terminal villi and an increase in the diameter of the capillaries of these terminal villi when compared with a group of women with preeclampsia and physiological body weight. The study has also demonstrated the distortion of the percentage ratio of the volume of the intervil¬lous space and the ratio of medium-calibre villi. The combination of these changes indicates a lack of adaptive capabilities in the placenta during preeclampsia under increasing hypoxic condition.

MORPHOLOGICAL FEATURES OF THE LIVER PARENCHYMA IN THE EXPERIMENTAL SUPPLEMENTATION OF RATION WITH THE FOOD ADDITIVES.

OBJECTIVE: The aim: The aim of the paper was the experimental study of the morphological features of albino rat hepatocytes after the consumption of the complex of food additives (monosodium glutamate, sodium nitrite, Ponceau 4R) supplemented into the ration and consumed for four weeks. PATIENTS AND METHODS: Materials and methods: The study was performed on 30 outbred albino rats of both genders, weighing 204±0.67 g. The ration of the experimental animals, supplemented with a combination of food additives, namely, monosodium glutamate, Ponceau 4R, sodium nitrate, was consumed for 1 and 4 weeks. The study of the structure of hepathocytes was carried out on traditional histological preparations and preparations stained with Best's carmine. RESULTS: Results: Supplementation of ration with the complex of food additives for one week showed the phenomena of fatty degeneration that dominated in hepatocytes, and in a longer consumption of food additives in the ration (for four weeks), the number of liver cells with the phenomena of hydropic degeneration significantly increased, while individual hepatocytes had signs of irreversible destructive changes. CONCLUSION: Conclusions: Consumption of the complex of food additives supplemented into the standard ration of laboratory animals for 4 weeks leads to a significant change in the dimensions of the liver cells, a decrease in their glycogen content, and a progressive increase in the number of hepatocytes with alterations.

Clinical-morphological characteristics and peculiarities of treatment of paraururicular fistulas in children.

OBJECTIVE: The aim: Determining the frequency of occurrence of paraauricular fistula in children and comparing the results of their own experience regarding their clinical manifestations, treatment principles and morphological features with existing scientific data. PATIENTS AND METHODS: Materials and methods: The results of a comprehensive examination and surgical treatment of 25 children with paraauricular fistulas. RESULTS: Results: Most often, para-auricular fistula was observed in infants 22 - (88%). In 18 persons (72%), they were unilateral, in 10 - (40%) hereditary. In 8 - (32%), fistula was diagnosed immediately after birth. In 17 - (68%) the pathology was not clinically manifested, but was an accidental finding during the next medical examination. Morphological research has shown that congenital paraauricular fistula is a formed canal intimately associated with the epithelium and cartilage, and the presence of epithelial lining on the fistula wall with constant support of the inflammatory process makes it impossible to heal even against the background of multicomponent treatment. CONCLUSION: Conclusions: Due to the topographic-anatomical localization, features of the clinic of the born fistula, surgical treatment does not always allow to achieve the desired results, and requires repeated interventions during recurrence. It is possible to prevent recurrence by the extensive use of additional diagnostic manipulations before surgery and careful wound control during surgical procedures.

Insect bites as the cause of infectious and allergic inflammatory processes of the maxillofacial area in children.

OBJECTIVE: Introduction: The part of purulent inflammatory processes (IP) of the maxillofacial area (MFA) as a result of insect bites are increased. The aim: To attract attention of the medical community to the problem of the complexity of the diagnosis and treatment of these dermatogenic forms of IP MFA. PATIENTS AND METHODS: Materials and methods: The work is based on the results of 5 year observations of 42 patients with acute IP MFA arising after insect bites, their comprehensive examination and treatment. CONCLUSION: Conclusions:1. IP of MFA, arising as a result of insect bites, is a very urgent problem of pediatric surgical dentistry and require an individual approach in the diagnosis and treatment of patients. 2. A large role in preventing the occurrence of these nosological forms is given to medical workers, a sufficient organization level of sanitary and educational work, and the treatment of such cases becomes a common task of doctors of different profiles. However, much depends on the parents, their level of responsibility and competency, ensuring of timely treatment and provision of qualified medical care to children, preventing the development of severe complications. 3. The issues related to the etiopathogenesis of this pathology require profound scientific research.

Morphological and immunohistochemical characteristics of human trigeminal ganglion neurons in the prenatal period of development.

INTRODUCTION: Data related to the amount, size and morphological characteristics of cell elements of sensory ganglia at different stages of prenatal development has not been fully elucidated in recent scientific publications. At the same time publications considering the study of cell structure of trigeminal ganglion in the postnatal period confirm heterogeneity of its neurons. The aim of the research was to study morphological and immunohistochemical characteristics of human trigeminal ganglion neurons at 12-14 weeks of prenatal development. MATERIAL AND METHODS: The study was made on 24 trigeminal ganglions of 12 human fetuses at 12 to 14 weeks of prenatal development after abortion made on social and medical indications. RESULTS: At the studied period of the intrauterine development nerve cells of the trigeminal ganglion significantly differed in size, tinctorial properties and degree of argentophility of the perikaryon. At the same time, the number of small nerve cells with an average diameter of less than 15 µm prevailed. Immunohistochemical study allowed detecting the apparent Bcl-2 expression in the overwhelming number of small neurons; the expression of this marker has been observed in 50% of cells of the medium-sized neurons. No Bcl-2 expression has been found in most of the large neurons. Almost all the neurons, regardless of the size, showed moderate Ki-67 expression, protein S-100. VEGF expression has also occurred in the vast majority of the nerve cells of all size groups. CONCLUSIONS: 1. Human trigeminal ganglion neurons both at 12-14 weeks of prenatal development and in postnatal period are represented by heterogeneous population. 2. Polymorphism of trigeminal ganglion neurons has been found by all applied techniques. 3. Detected polymorphism is the evidence of processes of maturation and differentiation of neurons in human trigeminal ganglion at 12-14 weeks of prenatal development.