Cytological Composition Research Articles

Advances in the Study of Orchidinae Subtribe (Orchidaceae) Species with 40,42-Chromosomes in the Mediterranean Region

This study presents an updated analysis of cytogenetic data for several species within the 40,42-chromosome genera of the subtribe Orchidinae. The research includes insights into the distribution of heterochromatin obtained using C-banding and fluorochrome techniques. Our investigation confirmed variation in the distribution of heterochromatin and repetitive DNA sequences among species pertaining to Neotinea s.l. and Orchis s.str. These variations also potentially contribute to the diversification of these species. Cytogenetic analyses of the Neotinea group demonstrated that both H33258 and DAPI staining result in blocks of fluorescent regions on numerous chromosomes. Particular attention was paid to the cytological composition of the polyploid Neotinea commutata, focusing on its potential origin. Based on the karyological results acquired, a hypothesis concerning the origin of N. commutata is proposed. The most noteworthy revelations regard the O. mascula complex. In these species, the telomeric areas of all chromosome sets display extensive heterochromatin. Fluorochrome staining revealed telomeric blocks on many chromosomes that were not seen with Giemsa staining. This highlighted a distinct feature of O. mascula, where particularly large C-bands surrounding the centromeric regions of multiple chromosomes were found. However, in O. mascula, O. provincialis, O. pauciflora, and O. patens, C+ chromatin may not show a significant response to fluorochrome Hoechst or DAPI+ staining. The unique cytomorphological arrangement observed in the O. mascula species, unlike other members of the O. mascula complex, suggest epigenetic phenomena. Additional data are presented for the genera Dactylorhiza and Gymnadenia. A deeper understanding of the diversity of chromosomal structures among these orchids promises to shed light on the mechanisms underlying speciation, adaptation, and the remarkable diversity characteristic of the Orchidaceae family.

Bloody tears: A new option for early diagnosis of endometriosis

Aims/Purpose: To investigate the cytological composition of tears to determine the potential diagnostic criteria of endometriosis.Methods: Tear samples obtained from the lower fornix of the conjunctiva using a glass capillary tube were examined by microscopy in 100 people: 60 healthy women who made up the control group and 40 patients with endometriosis.Results: The proportion of women with endometriosis, in whose tear erythrocytes were determined was significantly higher, 32.5%, compared with the control group ‐ 25.0%. In 69.2% of women with endometriosis, latent haemolacria was detected in the follicular phase of the menstrual cycle, which significantly exceeded the 30.8% of people with erythrocytes in tears detected in the luteal phase. Epitheliocytes were found in tears in 97.5% of patients with endometriosis versus 75.0% of healthy women, at the same time, in 100.0% cases, − in the follicular phase of the menstrual cycle, compared with 74.3% of healthy women in the same phase of the cycle. The proportion of women with epitheliocytes in the tear in the amount of “++” was 56.4%, which was significantly more compared to 20.0% of people from the control group with epitheliocytes in the same amount; at the same time, group accumulations of epitheliocytes were found in 15.0% of patients with endometriosis, which was significantly higher than in healthy women ‐ 8.3%. In 90.0% of cases in the group with endometriosis, glandular cuboidal epithelial cells were found in the tear, morphologically resembling endometrial cells.Conclusions: The revealed features of the cytological composition of tears in patients with endometriosis, which differed from those in the control group, reflected certain links in its etiopathogenesis, so the study of tear parameters can be useful for predicting the prevalence of “endometrioid disease” and developing pathogenetically substantiated treatment.

Клініко-інструментальні, цитологічні та інфламатометричні маркери ремоделінгу дихальних шляхів у хворих на бронхіальну астму дітей

Purpose - to investigate the clinical-instrumental, cytological and inflammatory characteristics of the disease in children with bronchial asthma, taking into account the content of the remodeling marker matrix metalloproteinase-9 (MMP-9) in the sputum to optimize the timely detection of structural remodeling of the bronchi. Materials and methods. A cohort of 99 children with BA was examined by the method of random sampling in the conditions of the Pulmonary Allergology Department of the RMCE CRCCH. All children underwent a complex clinical and paraclinical examination with the determination of the cytological composition of sputum, the determination of bronchial hyperreactivity and their hypersensitivity in a sample with serial dilution of histamine, the study of the concentration of metabolites of nitrogen monoxide in peripheral blood and condensate of pulmonary expiratory air. Two clinical groups were formed. The Group I included 55 patients in whom the content of MMP-9 in the sputum supernatant did not reach the level of 5.4 ng/ml, and the II group was formed by 44 patients with MMP-9 content ≥5.4 ng/ml. The main clinical characteristics of the observation groups were comparable. Results. It was established that the risk of a clinically more severe exacerbation of the disease is twice as high in children with an increased content of MMP-9 in the sputum (relative risk - 1.4, odds ratio - 2.0) with the preservation of this trend during 5 days of inpatient treatment. The work also shows that in patients with an increased content of MMP-9 in sputum, the concentration of FeNO more than 22.0 μmol/l occurs twice as often as in the first clinical group (pφ<0.05). This finding reflects the association of the processes of allergic inflammation of the respiratory tract and their remodeling. The results of the PC20H bronchoprovocation test indicate statistically significantly lower levels of the provocation dose and provocation concentration of histamine, which corresponds to significant bronchial hypersensitivity, the chances of which increase against the background of the accumulation of MMP-9 in sputum: 27.7 times for PC20H (FEV1) <3.7mg/ml and 48.8 times for PD20H (FEV1) <0.8mg. Conclusions. An increase in the content of MMP-9 in the supernatant fluid of sputum was associated with a more severe course of exacerbations of bronchial asthma in children, an increase in the content of metabolites of nitrogen monoxide in the blood and lung expiratory air, more pronounced signs of bronchial hypersensitivity. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of participating institution. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.

Influence of the Sexual Cycle Stage on the Vaginal Mucus Composition in Cows

Introduction. Herd reproduction is the fundamental mechanism ensuring the efficiency of animal husbandry in the past, present and future. The significant problems in cattle herd breeding existing in our country make the researchers continue their search for the new methods, methodologies and means of prophylaxis and treatment of the inflammatory diseases of the animal genital tract. For implementation of these findings, it is necessary to determine the regularities in the cow genital tract protective mechanisms. The present research aims at studying the changes in the vaginal mucosa cytological composition through the alteration of the sexual cycle stages in cows.Materials and Methods. The objects for the study were the newly-calved cows of the Holsteinized black-and-white breed in different sexual cycle stages: the control group included the cows in the stage of equilibration, the experimental group № 1 – the cows in the heat phase of the excitation stage and the experimental group № 2 – the animals in the ovulation phase of the excitation stage. The research was conducted using the set of methods: the pH-metry of the vaginal mucosa for making a semi-quantitative assessment by means of a colpo test and the cytological investigation carried out in compliance with the commonly accepted methodology.Results. During the pH-metry of the vaginal mucosa, no feasible differences were found between the studied groups, namely, in the control group the pH index was 6.58±0.08, in the experimental group № 1 – 6.66±0.10, in the experimen-tal group № 2 – 6.83±0.10. The cytological analysis of the cow vaginal smears revealed the following: the parabasal cells predominate in the equilibration stage (19–25 %), the superficial cells – in the heat phase (58–62 %), whereas in the ovulation phase there increases the number of intermediate cells (30–34 %).Discussion and Conclusions. The relationship between the clinical status, pH level, vaginal mucus cell composition in cows has been traced. The obtained data can be used by the veterinarians of the cattle farms to identify the phase of «silent» heat in cows.

The prognostic value of the cytological composition of the tear in the diagnosis of endometriosis

Purpose. To investigate the cell composition of the tear in healthy women and endometriosis patients in order to find the potential diagnostic criteria of endometriosis. Material and methods. Tear samples obtained from the lower fornix of the conjunctiva using a glass capillary tube were microscopically examined in 100 females aged 18 to 48: 60 healthy women, who made up the control group, and 40 patients with endometriosis. Results. The share of women with endometriosis who were found to have erythrocytes was 32.5 %, which was significantly higher as compared with the control group, where it was 25.0%. 69.2 % of women with endometriosis showed haemolacria in the follicular phase of the menstrual cycle, which significantly exceeded the percentage of women with erythrocytes in the tear (30.8 %) who had them in the luteal phase. Epitheliocytes were found in the tear of 97.5 % of patients with endometriosis, versus 75.0 % of healthy women. In all 100 % of such patients, these cells were found in the follicular phase of the menstrual cycle, compared with 74.3 % of healthy women who showed these cells in the same phase of the cycle. The share of women with endometriosis showing the ++ quantity of epitheliocytes in the tear was 56.4 %, which was significantly higher than the 20 % of the control group subject with the same level of epitheliocytes. It is to be noted that group accumulations of epitheliocytes were found in 15 % of endometriotic patients, which was significantly higher than in healthy women, of whom only 8.3 % had such accumulations. 90 % of endometriosis group cases revealed glandular cuboidal epithelial cells in the tear, which morphologically resembling endometrial cells. Conclusion. The revealed properties of the cytological composition of the tear of patients with endometriosis reflected particular links in its etiopathogenesis, which suggests that the study of tear parameters can help predict the incidence of the "endometrioid disease" and develop pathogenetically oriented treatment methods.

Comprehensive Review of Reported Nonclassical Spindle Cell Lipoma Presentations and a Unique Case Report.

Introduction:Spindle cell lipoma (SCL) is a rare subset of benign lipomatous neoplasms, making up approximately 1.5% of all adipocytic neoplasms. Since SCLs were first described in 1975, numerous nonclassical cases have been reported in the literature, with variation in location, cytologic composition, patient demographic, and progression. Although some previous reports review related cases of specific rare presentations or institution-based summaries, no comprehensive summary of published nonclassical SCL case reports has been done.Methods:PubMed was queried for nonclassical presentations of SCL from 1978 to 2018. The nonclassical characteristics were analyzed and described. Those with multiple nonclassical features were studied for common characteristics. The Fisher exact test was used, and a P value of 0.05 was determined to be statistically significant.Results:We present the first case of a patient with six nonclassical findings: a fast-growing, infiltrating into skeletal muscle, located in two positions on the chin of an 18-year-old African American woman. In this review of the existing nonclassical SCL, we evaluate 125 cases for demographics, location, size, erosion/infiltration, multiple lesions in one individual, and the number of nonclassical findings in one individual. Women and younger than 40-year-old patients significantly present with more than one nonclassical finding.Conclusions:Thorough characterization of the rare nonclassical cases of this benign condition could guide diagnostic decision-making and identify trends in disease presentation over time as well as alert the clinician to the increased risk of rapid regrowth or invasion in an individual with nonclassical findings especially young age and female gender.

Cytological characteristics of vaginal smears in ewes during the sexual cycle and during pregnancy

New criteria for cytological analysis of sheep vaginal swabs (cytovaginal examination) during sexual hunting, during the sexual cycle, after insemination and depending on the effectiveness of insemination have been developed. Cytological material was collected from the area of the upper vaginal vault using a sterile vaginal mirror, forceps and cotton gauze swab. Staining of brushstrokes was performed according to Gimza-Romanovsky. To improve the method of cytovaginal examination, the division of smear epitheliocytes into groups: functional, destroyed, non-nuclear and cells with nuclear pyknosis is proposed. In turn, among the functional cells it is advisable to distinguish between cells of the deep layers of the epithelium (basal-parabasal), intermediate and surface layer (superficial nuclear). The main types of ratio of particles of different groups and subgroups and their prognostic value in the mating season during sexual hunting are revealed. It was found that during the inhibition stage there is an intensive desquamation of the epithelial level, which was manifested by a 2.5-fold decrease in the number of basal / parabasal epitheliocytes and almost four - destroyed epitheliocytes. And already from the 13th day there is an increase in the cells of the functional level due to the proportion of cells of the deep and intermediate level. On the 18th day, the cellular composition of vaginal smears in sheep acquired characteristics characteristic of the stage of arousal. Thus, compared with the 6-8th day of the cycle, the number of destroyed epitheliocytes (p <0.001) and naked nuclei (up to 8.3 ± 1.6) doubled again (up to 12.0 ± 0.7) against the background of a decrease in 4 times (to the initial level) of cells with pyknosis of the nucleus. The main cytological sign of pregnancy from the fourth day after insemination was a 2.7-fold increase in the number of destroyed cells and "naked" nuclei. In the following days of the study, except for the 13th day, this difference ranged from 1.3 to 4.3 times (8.3 ± 5.4 to 14.7 ± 3.6%), compared with the corresponding figures in unfertilized ewes. Also on the 13th day after the introduction of sperm in fertilized females there is a tendency to increase the number of deep layer cells and the acquisition on the 18th day of a probable difference in the ratio between the number of deep and surface cells - 5: 1. Changes in the distribution of deep and surface cell particles in unfertilized animals indicate the manifestation of the next stage of excitation and the predominance of epithelial cell differentiation. In contrast, in pregnant females, the proliferation of the deep layers of the vaginal epithelium increased. Key words: ewes, sexual cycle, sexual hunting, vaginal smear, cytological composition, pregnancy.

INFLAMATOMETRIC FEATURES OF BRONCHIAL ASTHMA WITH DIFFERENT ACTIVITY DEGREE OF EOSINOPHILIC AIRWAY INFLAMMATION

The aim of the study – to investigate the clinical signifi cance of eosinophilic cationic proteinconcentration in sputum and its diagnostic role in the disease management for optimizationof the personalized anti-infl ammatory therapy of patients with bronchial asthma.
 Materials and methods. There have been examined 66 school-aged children with persistentbronchial asthma who had been under anti-infl ammatory control therapy for at least thelast three months, but still needed treatment correction. Sputum has been collected in allpatients during post-attack period of disease by the method of sputum induction usingan inhalation of hypertonic solutions (3%,5%,7%) of sodium chloride. Quantitative andqualitative cytological composition of the sputum precipitate has been determined, inthe supernatant liquid fraction, obtained after sputum centrifugation, the concentrationsof eosinophilic cationic protein (ECP) and endothelial vascular growth factor (VEGF)have been studied by ELISA method. In the general cohort of examined patients, theaverage ECP concentration was 2.28±2.2 ng/ml (minimum value 0, maximum – 9.2 ng/ml). Depending on the ECP content in the sputum, children have been divided into 2clinical groups: The fi rst (I) clinical group was formed by 29 children with a content ofECP in the sputum greater than the average cohort value, and the second (II) clinicalgroup included remaining 47 patients with the level of ECP<2 ng/ml). According to themain clinical characteristics (age, gender, place of residence, duration of the disease)the clinical groups have been comparable. All patients underwent a biochemical studyof exhaled breath condensate (EBC), which involved the content determination of totalprotein, catalase activity; concentrations of nitrogen monoxide metabolites and markers
 of proteolytic activity. The results of the study were analyzed by parametric and non-parametric calculation methods, and estimation of the tests’ diagnostic value were carried
 out from the position of clinical epidemiology taking into account their sensitivity (Se)and specifi city (Sp), as well as attributive (AR) and relative (RR) risks, and the odd ratio(OR) of the event, taking into consideration their 95% confi dence intervals (95% CI).Results. The analysis of the obtained data has showed that in the comparison groups theclinical level of asthma control (18.3 ± 1.5 vs. 18.6 ± 1.3 points, P> 0.05), and sputumcell composition (in particular by the number of eosinophilic granulocytes: 9,24±2.3vs. 9,28±2.2%, P> 0.05) did not diff er much. In addition to that, VEGF concentrationin sputum, which refl ects the bronchial remodeling processes, was 1.25 times higherin representatives of the I group (145.43 ± 19.71 pg/ml) compared with patients of theII group (115.93 ± 15, 7 pg/ml; P> 0.05). In EBC, the content of nitrogen monoxidemetabolites was higher in patients of the II group: 44.4 ± 5.74 μmol/l in comparison withrepresenatives of I group (55.8 ± 9.8 μmol/l; P> 0.05). At the same time, in patients ofclinical I group in EBC higher proteolytic activity of azocol, as well as a higher catalaseactivity was noted (68.4 ± 22.6 μmol/min x mg of protein compared to 49.6 ± 10.3 μmol/min x mg of protein in the II group of comparison; P> 0, 05). In contrast, in the II group,the infl ammatory process has been associated with the lysis of low molecular weightproteins.Conclusion. In children with bronchial asthma, increased degranulation of sputumeosinophils (according to the ECP concentration) is associated with a more pronouncedairway infl ammation, as evidenced by the increased intensity of oxidative modifi cation ofproteins (OR=3,6) and proteolytic activity of high molecular weight proteins; togetherwith high catalase activity and elevated concentration of such marker of bronchialremodeling as VEGF, along with decreased content of nitrogen monoxide metabolites inthe exhaled breath condensate.

Cytological analysis of tracheal wash and bronchoalveolar lavage fluid in health and respiratory disease in dromedary camels.

BackgroundTracheal wash (TW) and bronchoalveolar lavage (BAL) have proven to be useful tools for the identification of disease-associated changes in the respiratory tract in human and different animal species. In the dromedary camel, little is known about cytological analysis of TW and BAL in health and disease. The aim of the present study was to evaluate the cytological composition of TW and BAL in health and respiratory disease in dromedary camels.MethodsTW and BAL samples were collected from dromedary camels and cytological analysis was performed by microscopic examination of prepared smears. Camels with clinical respiratory disease (n = 18) were compared with apparently healthy (control) camels (n = 9).ResultsIn the apparently healthy camels, differential cytological analysis of TW samples identified macrophages and neutrophils as the main cell populations with lesser proportions of lymphocytes and epithelial cells and very rare abundance of eosinophils and mast cells. In the TW of camels with respiratory disease, neutrophils were the most abundant cells followed by macrophages and lymphocytes. In the BAL of healthy camels, macrophages represented the main cell type followed by lymphocytes and neutrophils. In respiratory-diseased camels, BAL samples contained higher percentages of neutrophils with reduced percentages of macrophages and lymphocytes in comparison to camels from the control group. Collectively, the results of the current study revealed higher abundance of neutrophils in the TW and BAL from dromedary camels than many other veterinary species. The cytological patterns of TW and BAL from camels with respiratory diseases were characterized by increased proportion of neutrophils and decreased proportion of macrophages in comparison to healthy camels. The proportion of lymphocytes was also decreased in TW samples from diseased camels.

Role of genetic structure of Helicobacter Pylori in formation of chronic inflammatory process in gastric mucosa

The literature review highlights the questions of the interaction of Helicobacter pylori and the human body. Modern data on the structure of the pathogenicity island in the Helicobacter pylori genome are presented. There is given a detailed description of both well-known virulence and pathogenicity factors of the infection (genes encoding the formation of urease subunits, in particular urel, cytotoxin associated gene A, vacuolating cytotoxin gen A, blood group associated binding adhesion, induced by contact with epithelium) and less studied ones (sialic acid-binding adhesion, adhesion-associated lipoprotein A and B, adhesin gene of Helicobacter pylori, Hp outer membrane protein). The significance of individual genes and proteins encoded by them in the development of chronic inflammatory process in diseases of the upper digestive tract, as well as in ulcer and carcinogenesis is analyzed. Mechanisms of interaction of bacteria with epithelial cells of the gastric mucosa, adhesive and cytotoxic effects of Helicobacter pylori, factors of biofilm formation are described. The influence of the genetic structure of Infect on cytological composition of the gastric glands in the form of reduction of specialized glandular cells chief and parietal cells of pyloric glands and the increase of endocrine cells in the pool is assessed. It is shown that colonization of the gastric mucosa by highly pathogenic strains of Helicobacter pylori contributes to the development of widespread pronounced and active inflammation in it, the appearance of morphological signs of atrophy. The role of the genetic characteristics of the infection in the failure of anti-helicobacter therapy is emphasized. Separately, the question of the effect of combined infection of the gastric mucosa with highly pathogenic strains of Helicobacter pylori and Epstein-Barr virus is highlighted.

Cytology of smears of prints with symptomatic forms of infertility in cows

Many works of domestic and foreign scientists are devoted to the study of etiological factors, pathogenesis, as well as the development of effective methods of diagnosis and therapy for symptomatic infertility of cows, however, insufficient attention is paid to cytological examination of the genital organs.So the goal of our work was to study the cytology of vaginal mucus at the symptomatic form of infertility of cows. The article presents the cytological composition of vaginal mucus from the mucous membrane of the caudal section of the cervix, the lateral surface of the vagina and the dorsal wall of the vaginal vestibule. Research was carried out with 5 groups of cows 4–5 years old cows 6 animals in each, weighing 500–600 kg, with an average productivity of 7500 kg of milk per lactation. The tests were cows were on the 18–24 day after insemination and during the sexual cycle braking, research of the joint course of uterus and hypotension of the ovarian, the presence of persistent corpus luteum and subclinical chronic endometritis, cysts and persistent corpus luteum of the ovarian body. For sub-clinical chronic endometritis, basal cells (32–41 %) are found in wet prep with vaginal mucosa, which are arranged in layers, parabasal (22–6 %) and superficial (5–21 %), but more interstitial (37–66 %), and bare neutrophil nuclei. According to hypofunction of ovaries in vaginal smears, neutrophils, vacuoles in interstitial cell nuclei (44–56 %), basophilic cells (30–43 %), superficial cells (20–21 %), parabasal cells (3–6 %). Basal cell hypofusions were (3–43%), parabasal (3–6 %), interstitial (44–56 %), superficial (20–21 %), and bilateral (12–26 %) (4–5 %) (36–55 %) and (30–33 %). It should be noted that for the functional state of the body, the cells from the cervix are flat. In addition, the drug contains single white blood cells with light cytoplasm without signs of phagocytosis. They are structurally similar to cells of vaginal smear. During the esrtus, the smear is dominated by interstitial and surface cells and white cells, and in the follicular proliferative phase, the number of surface cells increases, while the ovulator phase is characterized by the pronounced maturation of the cells, they are flat and spaced apart.

Clinicopathological characteristics of pediatric-type follicular lymphomas: an analysis of 37 cases

Objective: To study the clinicopathologic features, immunophenotype and prognosis of pediatric-type follicular lymphoma (PTFL). Methods: Thirty-seven cases of PTFL at the Beijing Friendship Hospital, Capital Medical University, from January 2012 to March 2018 were analyzed using light microscopy, immunohistochemistry, and polymerase chain reaction (PCR), and 13 cases were also examined using fluorescence in situ hybridization (FISH). Results: The male to female ratio was 35∶2. The median age was 16 years. Thirty-one patients were clinical stage Ⅰ and 6 were stage Ⅱ, displaying enlargement of lymph node in the head and neck regions. Follow-up information was available in 32 patients. Only two patients received low-dose chemotherapy, and none of these patients had relapse or disease progression at the latest follow-up (ranging from 16 to 79 months; median, 37 months). Morphologically, the lymph node architecture was partially or totally effaced by expansile follicles lacking polarization, with a prominent "starry sky" appearance. The cytologic composition was dominated by monotonous medium to large-sized blastoid cells with round to oval nuclei, finely clumped chromatin, small nucleoli, and scant cytoplasm. Immunophenotypically, all cases were positive for CD20, CD10, and bcl-6, but negative for bcl-2, MUM1 and C-MYC. Tumor cells were restricted to the follicles. The Ki-67 immunohistochemistry demonstrated a high proliferation (50% to 90%). Moreover, the tumor cells in the examined 28 cases were negative for CD43, CD5 and CD23. PCR analysis revealed monoclonal Ig gene rearrangements in all specimens. Thirteen cases being subjected to the FISH testing lacked bcl-2 and bcl-6 translocations. Conclusion: PTFL is different from conventional follicular lymphoma in their distinct morphology, immunophenotypic and molecular features, and behaves like an highly indolent or benign tumor.

In Vivo Antimicrobial and Wound-Healing Activity of Resveratrol, Dihydroquercetin, and Dihydromyricetin against Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans.

An increase in the spread of antibiotic-resistant opportunistic microorganisms causes serious problems in the treatment of purulent infections, burns, and trophic ulcers. We tested the antimicrobial activity in vivo of three polyphenols, Resveratrol, Dihydroquercetin (Taxifolin), and Dihydromyricetin (Ampelopsin) from Norway spruce bark to promote the elimination of Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans from wounds. Purulent infection was modelled on wounds in rats infected with suspensions containing 109 CFU (colony-forming unit)/mL of pathogens. The wound area was treated daily with solutions of the polyphenols or placebo for 14 days after the beginning of the treatment. The animals were examined daily, and each stage of the wound healing (inflammation, granulation, and maturation (marginal epithelialisation) was documented. The planimetric analysis of the wound recovery percentage was performed on the 3rd, 10th, and 14th day after the start of curing. Then, one echelon (three or four animals from each subgroup) was withdrawn from the experiment on days 3 (three animals), 10 (three animals), and 14 (four animals) for microscopy analysis of cytological composition of their wound defects by microscopy and microbiological analysis of their contamination with pathogens. Our results show that they are also able to suppress mast cell infiltration and stimulate lymphocyte and macrophage (monocyte) infiltration into the wound. Resveratrol stimulated the replacement of the scar with normal tissue (with a clear boundary between the dermis and epidermis) and the restoration of hair follicles. Resveratrol turned out to be significantly better than some commercial antimicrobial (Levomecol) and antifungal (Clotrimazole) ointments and can be proposed as a promising drug for topical use for the treatment of trophic ulcers and burns.

Placental barrier permeability to Ca, P, and Mg in the diagnosis of canine hip dysplasia

The experience carried out in two groups of female dogs of different gestational age on 35-th day (first period), 45-th day (second period), 55-th day (third period), and 65-th day (fourth period). The weight of animals ranged from 21-27 kg, and age from 2.4 to 4.5 years. We selected the animals of different breeds, in which the ultrasound detected at least five fetuses. Diet of control group consisted of natural foods (cereals, meat, vegetables), involved–with Bosch Production and vitamin-mineral complex Caniletten (tablets) or Canipulver (powder) according to the dosage recommended by the manufacturer. The experiments were conducted for five years in clinically healthy pregnant dogs, who had healthy puppies (control) and subclinical patients with the development in the postnatal period have they had fathered puppies of dysplasia or hip elbow (experience). At the same time the overall clinical status of all born pups up to 3 months of age determined. All pregnant animals were determined by morphological and biochemical composition of venous blood from pups of different age obtained at caesarean section, collected the umbilical cord, puncture of membranes – amniotic fluid and alantoine, after their autopsy, the liver, hip and elbow joints. Blood analysis and examination of fetuses and organs removed from them were carried out by conventional methods, mineral composition of blood, provisional organs and joint tissues by means of flame spectrophotometry. In the blood of pregnant female dogs we determined the content of Ca, P and Mg in the direction of a blood of mother – the fetal part of the placenta – the blood of the umbilical vein, the liver of fetal – tissue puppies – and alantoin amniotic fluid. There were no regular changes in the number of blood elements in the studied animals, but the number of red blood cells, the average volume, percentage, and absolute width of their distribution are lower in experimental animals compared to the control. The morphological analysis of differences in the cytological composition of blood and leucogramma did not revealed any variation, while the biochemical analysis found a significant increase in activity of AST and alkaline phosphatase for the experimental animals. We found that the fetal part of placenta accumulates Ca, P and Mg in concentrations much higher than in the mother blood. Main share of Ca from the mother blood in control group entered the fetal part of placenta during the second study period, share of P – during the first and third periods, and share of Mg gradually increased from the first to the fourth periods. The level of minerals in the blood of female dogs of the control group was critical during the second to third periods, from 45 to 55 days of pregnancy, and acted as a potential bioindicator of preventive diagnosis of canine joint dysplasia. During this period of pregnancy it is necessary to apply the adjustment rations by providing the animals with minerals. Key words: Intrauterine development; Fetus; Pregnancy; Provisional organs; Liver

Innovative approach to barrier amnioplasty in surgical treatment of primary progressive pterygium

The aim is to evaluate the efficacy of new method of barrier amnioplasty in surgical treatment of primary progressive pterygium.
 Materials and methods. 40 patients (40 eyes) with primary progressive pterygium, divided into two groups depending on surgical features of barrier amnionoplasty: in the main group (20 patients), plastic surgery was carried out in the semilunar fold area; in the control group (20 patients) in the limbal area. All patients underwent special examination: tear pH measurement and cytological evaluation of the cellular composition from the wound surface. The treatment efficacy was evaluated: in the early postoperative period by the timing of conjunctival inflammation disappearance, corneal epithelialization and vitalization of the amnion; after 1 year according to the state of the limbus, cornea, visual acuity, degree of corneal astigmatism.
 Results and conclusions. The use of amnioplasty method in the area of semilunar fold developed and implemented by us in clinical practice showed high efficacy: time reduction in local cellular inflammatory reactions in the cytological composition of swabs and scrapings and postoperative inflammation of ocular surface, which led to shortening of periods of corneal epithelization by 1.7 times and vitalization of the amnion by 1.5 times. Uncomplicated postoperative course of inflammatory-regenerative reactions allows avoiding the pterygium recurrence and causes reduction of the degree of corneal astigmatism and visual acuity increase.

Architecture of the intestinal crypts of the payers’ patches of the albino rats’ small intestine.

Background. In the Peyer’s patches, intestinal crypts are topographically differentiated with respect to their lymphoid nodules. Consequently, two types are distinguished. The first type is associated with the lymphoid tissue of the corresponding nodules, and the second one is located outside of them. Objective. To study the features of architecture of the intestinal crypts of the Payer’s patches of albino rats’ small intestine. Methods. 30 mature albino male rats weighted 200,0±20,0 g were involved into the study. Sections of the small intestine with Peyer's patches were fixed in 10% neutral buffered formalin solution. Subsequently, serial paraffin sections of 4 μm thick (Microm HM 325), stained with hematoxylin-eosin, were obtained using the conventional histological methods. Another part of the preparations was plasticized in the epoxy. The analysis of the obtained preparations was carried out using the MBS-9 binocular magnifier and “Konus” light microscope equipped with Sigeta DCM-900 9.0MP digital microphotographic attachment, object-micrometer Sigeta X 1 mm/100 Div.x0.01mm. Results. Payer’s patches contain two types of the intestinal crypts, discrete by the bundles of smooth muscle fibers. Lymphoid-associated crypts (i.e., intranodular) are actually offshoots of the extranodular crypt network laid at the base of the intestinal villi of the Peyer’s patches. Their penetration into the thickness of the lymphoid nodules occurs around their circumference through local splitting of the bundles of smooth muscle fibers, as a result of which they appear in the thickness of their peripheral regions, corresponding to T-dependent zones. Conclusions. Despite the common origin, these crypts, differing in localization, differ in thickness (the diameter of lymphoid-associated crypts is on the average of 70 μm, while extranodular crypts are 10 μm narrower in the diameter), as well as in the cytological composition and contents of the internal lumen.

Pathogens transmission and cytological composition of cow’s milk

Pathogens transmission and cytological composition of cow’s milk

Study of innate factors in the local immune defense of the genital organs of dogs and cats

Immune system of reproductive organs of animals is represented by a number of cellular and humoral protection factors. Recently, the attention of scientists was attracted by the role of immunocompetent cells, which integrally provide immune homeostasis at all stages of the reproductive function. The purpose of the work was to study the cellular factors of immune defense of mucous membranes of genital organs of dogs and cats. The cytological composition and determination of immunological parameters of vaginal microscope slide were determined by patented methods. Local immunity was determined by the parameters of extracellular protection mechanisms, which consisted in the study of the Oxygen-dependent potential of neutrophil granulocytes (NBT-test) and their ability to form extracellular traps (NETs). Our studies have found that in different stages of the sexual cycle in beach and cats, along with cytological changes in epithelial cells, changes occur in phagocytic protection. In particular, in the post-infusion period there was an increase in the number of intermediate and basal epithelial cells on the surface of which were adhered microorganisms. Along with epithelial cells, activated phagocytes were grouped. Neutrophils showed cytochemical reactivity in the NBT-test, and also formed NETs. At the same time, activated phagocytes absorbed microorganisms, and some epithelial cells formed specific cytoplasmic inclusions, which obviously also has an important role in the antimicrobial immunity of the mucosa. Some neutrophilic granulocytes were in a state of apoptosis. During the sexual cycle in the organism of dogs and cats there are morphology and functional changes in the genital organs, which was accompanied by a change in the cytological picture of vaginal microscope slides. It was established that the antimicrobial protection system plays an important role in the neutrophilic granulocytes, the functional activity of which also has a change. The main mechanisms of extracellular antimicrobial protection of microphages are realized with the involvement of Oxygen species in the excretion system of active forms and the formation of neutrophilic extracellular traps. Epithelial cells are also involved in the formation of immune homeostasis of genital mucous membranes.

Changes in cellular factors of local immunity udder of cows with mastitis

The immunological aspects of lactation of cows are investigated in this work. The authors present modern scientific data on the local immune protection of the mammary gland of cows. The purpose of the research was to improve the laboratory methods of diagnosis of mastitis and to study the cytological composition of the secretion of the breast of the cows for subclinical and purulent catarrhal inflammation of the udder. The cytological differentiation of milk cells was carried out according to its own developed, tested and patented method. Our experimental data convincingly confirm that in subclinical and purulent-catarrhal mastitis in cows there are significant changes in changes in the cytological composition and the system of local immune defense of the mammary gland. An important role in inflammation of the mammary gland is played by neutrophilic granulocytes that migrate to the parenchyma at the beginning of the clinical pathology (with subclinical inflammation) and release a range of inflammatory mediators in the inflammation zone. Subclinical mastitis of cows is accompanied by a sharp increase in the total somatic cells count in the secretion of the mammary gland. This is due to the activity of neutrophilic granulocytes, monocytes of histiocytes. Corresponding changes were found in the cytological balance of immunocompetent cells of the secretion of cows at from subclinical mastitis. The most significant shift was noted in the index of migratory activity of neutrophils (P < 0.01), which is a specific “indicator” indicator of inflammatory response in the body of diseased animals. Subclinical inflammation was also manifested by a decrease in the migration activity of lymphocytes. At purulent-catarrhal mastitis of cows there is a significant increase in the number of somatic cells. Also, the migration activity of neutrophils and histiocytes in the pathologic process zone is increasing and changes in the balance of immune cells are established. Thus, our experimental data convincingly confirm that in subclinical and purulent-catarrhal mastitis in cows there are significant changes in the system of local immune defense of the mammary gland. It has an important diagnostic value and also needs immunocorrection in the treatment process.

A blueprint of mammalian cortical connectomes.

The cerebral cortex of mammals exhibits intricate interareal wiring. Moreover, mammalian cortices differ vastly in size, cytological composition, and phylogenetic distance. Given such complexity and pronounced species differences, it is a considerable challenge to decipher organizational principles of mammalian connectomes. Here, we demonstrate species-specific and species-general unifying principles linking the physical, cytological, and connectional dimensions of architecture in the mouse, cat, marmoset, and macaque monkey. The existence of connections is related to the cytology of cortical areas, in addition to the role of physical distance, but this relation is attenuated in mice and marmoset monkeys. The cytoarchitectonic cortical gradients, and not the rostrocaudal axis of the cortex, are closely linked to the laminar origin of connections, a principle that allows the extrapolation of this connectional feature to humans. Lastly, a network core, with a central role under different modes of network communication, characterizes all cortical connectomes. We observe a displacement of the network core in mammals, with a shift of the core of cats and macaque monkeys toward the less neuronally dense areas of the cerebral cortex. This displacement has functional ramifications but also entails a potential increased degree of vulnerability to pathology. In sum, our results sketch out a blueprint of mammalian connectomes consisting of species-specific and species-general links between the connectional, physical, and cytological dimensions of the cerebral cortex, possibly reflecting variations and persistence of evolutionarily conserved mechanisms and cellular phenomena. Our framework elucidates organizational principles that encompass but also extend beyond the wiring economy principle imposed by the physical embedding of the cerebral cortex.