Leukocyte Concentration Research Articles

Euonymus alatus (Thunb.) Siebold leaf extract enhanced immunostimulatory effects in a cyclophosphamide-induced immunosuppressed rat model.

Euonymus alatus (Thunb.) Siebold (EA) is a medicinal plant used in some Asian countries to treat various diseases, including cancer, hyperglycemia, diabetes, urticaria, dysmenorrhea, and arthritis. Owing to the wide range of pharmacological applications of EA, various roles of EA are being studied. We evaluated the immune-enhancing effect of EA treatment in a cyclophosphamide (Cy)-induced immunosuppressed rat model. We analyzed the immune enhancement effect of EA on macrophages by western blotting. In addition, cell viability and natural killer (NK) cell activity were analyzed in splenocytes following EA treatment. For in vivo studies, analysis of weekly body weight, spleen weight, immune cell count, cytokine levels, and spleen histological findings was performed following EA administration in Cy-induced immunocompromised rats. EA significantly increased cell viability and phospho-nuclear factor-kappa B and phospho-extracellular signal-regulated kinase protein levels in the macrophages. EA significantly increased NK cell activity in splenocytes compared with the control group. In Cy-induced immunosuppressed rats, EA administration increased spleen tissue weight and the contents of leukocytes, lymphocytes, granulocytes, intermediate cells, and plasma cytokines (tumor necrosis factor-α and interferon-γ). In addition, improvement in the damaged spleen tissue was observed. These findings confirm that EA exerts an immune-enhancing effect, thereby suggesting its potential as an immunostimulatory agent or functional food.

Improving the accuracy of quantitative spectroscopic analysis of leukocyte by suppressing the influence of the "M" factors based on "M + N" theory.

Leukocytes play a crucial role in clinical diagnosis. The noninvasive and immediate detection of this low blood component has both important application and academic significance. The "M + N" theory makes it obvious that suppressing the influence of N factors and reducing the influence of M factors are both necessary in order to accurately detect the low content of blood components like leukocytes. Therefore, based on the strategy of "fixing the influencing factors" in the "M + N" theory, this paper proposes the method of "partition modeling based on the content of large concentrations of non-target components." Firstly, a dynamic spectral acquisition system was built to achieve the noninvasive acquisition of spectra. Then this paper applies the method proposed above to the modeling process of the samples. In order to lessen the impact of the M factors, the approach first divides the samples into groups based on the concentrations of the major blood components (platelets and hemoglobin). This reduces the range of fluctuation of the non-target components in each interval. The modeling of the leukocyte content was then carried out independently for each sample contained in each compartment. Compared with the result of modeling the sample directly, the related coefficient of the calibration set (Rc) improved by 11.70%, and the root mean square error (RMSEC) decreased by 76.97%; the related coefficient of the prediction set (Rp) improved by 32.68%, and the root mean square error (RMSEP) decreased by 52.80%. When the model was applied to predict all samples, the related coefficient (R-all) increased by 16.67%, and the root mean square error (RMSE-all) dropped by 63.00%. It was shown that, as compared to direct modeling of leukocyte concentration, the method of "partition modeling based on the content of large concentrations of non-target components" considerably increased the accuracy of quantitative analysis of leukocytes. The method can be used to analyze other blood components as well, offering a fresh approach and technique to increase the precision of spectral analysis of the blood's small content components.

Characterization of the Mitochondrial Genetic Landscape in Abdominal Aortic Aneurysm.

Background Abdominal aortic aneurysm (AAA) is a vascular disease with a mortality rate of >80% if ruptured. Mitochondrial dysfunction has been previously implicated in AAA pathogenesis. In this study, we aimed to characterize the mitochondrial genetic landscape in AAA. Methods and Results Whole mitochondrial genome sequencing and bioinformatics analysis were performed in comorbidity matched 48 cases without AAA and 48 cases with AAA, objectively diagnosed, and selected from a cohort of 65-year-old men recruited for a screening program. We identified differential mutational landscapes in men with and without AAA, with errors in mitochondrial DNA replication or repair as potential sources. Heteroplasmic insertions and overall heteroplasmy of structural rearrangements were significantly elevated in AAA cases. Three heteroplasmic variants were associated with risk factors of AAA: leukocyte concentration, plasma glucose, and cholesterol levels, respectively. Interestingly, mutations were more prevalent in regulatory part of the mitochondria, the displacement loop region, in AAA as compared with controls (P value <0.05), especially in the conserved and critical mitochondrial extended termination-associated sequenceregion. Moreover, we report a novel 24 bp mitochondrial DNA duplication present exclusively in cases with AAA (4%) and 75% of the unmatched AAA biopsies. Finally, the haplogroup cluster JTU was overrepresented in AAA and significantly associated with a positive family history of AAA (odds ratio, 2.9 [95% CI, 1.1-8.1]). Conclusions This is the first study investigating the mitochondrial genome in AAA, where important genetic alterations and haplogroups associated with AAA and clinical risk factors were identified. Our findings have the potential to fill in gaps in the missing genetic information on AAA.

Influence of Different Stocking Densities on Some Blood Parameters in Laying Hens

The aim of the scientific work is to study the changes in the hematological indicators of chickens when they are kept at a high stocking density. In the conditions of the current complex for the formation of eggs, 4 groups of laying hens were formed. The results showed that high stocking density to 24.0 birds m-2 was accompanied by an increase in their blood of leukocytes by 12.2%, heterophils – by 1.8%, and a decrease in thrombocytes’ concentration by 4.0%. Provided that the planting density is increased to 25.3 birds m-2, there was an increase in the content of leukocytes by 13.7%, heterophils – by 3.1%, and a decrease in thrombocytes concentration by 10.8% with a decrease in their volume by 9.2%. Further increase in stocking density to 26.7 birds m-2 caused an increase in the blood content of leukocytes by 22.7%, heterophils – by 13.5%, and a decrease in thrombocytes concentration by 69.0% with a decrease in their volume by 18.6%. Thus, the high stocking density of laying hens is shown by changes in their hematological parameters, which is reflected in the increase of leukocytes, due to an increase in the number of heterophils, and a decrease in thrombocytes.

Клінічний ефект застосування персикової олії з вітамінами А, Е, D зовнішньо на шкіру в дітей з атопічним дерматитом

Vitamins A, E, D play an extremely important role in ensuring the normal functioning of the skin and mucous membranes, an adequate immune response, and maintaining resistance to various adverse external factors. The impact of vitamins A, E, D, and the relationship between their availability and the susceptibility to skin allergies continues to be studied. Peach oil is widely used in medicinal ointments and creams for dermatitis, and vitamins are successfully used in the systemic treatment of atopic dermatitis in children. The possibility of combined external application of peach oil and vitamins A, E, D to the skin in atopic dermatitis in children is of scientific interest. Purpose - to study, evaluate and analyze the clinical effect of combined external application of peach oil and vitamins A, E, D on the skin in atopic dermatitis in children. Materials and methods. During the research, 64 children with atopic dermatitis and 32 children of the control group aged from 1 to 17 years were examined. Сomparative assessment of the clinical effect of traditional and improved complex therapy of 64 children with atopic dermatitis. Improved complex therapy included the external application on the skin of peach oil with vitamins A, E, D twice a day during four weeks. General clinical, immunological, questionnaires and statistical research methods were used. Results. The research of different variants for the treatment of atopic dermatitis in children showed better clinical effect of improved complex therapy with the external application on the skin of peach oil with vitamins A, E, D, which was accompanied by a decrease in the prevalence and intensity of skin manifestations, itching, normalization of sleep and it was confirmed by a decrease in the SCORAD index, a decrease markers of allergic inflammation - concentrations of leukocytes, eosinophils and histamine in the blood. The significant improvement in the course of the disease was noted under the influence of improved complex treatment compared to traditional therapy. Conclusions. The combined external application on the skin of peach oil and vitamins A, E, D with atopic dermatitis in children contributes to a significantly faster reduction of the skin signs such as dryness / flaking, xerosis/hyperkeratosis, lichenization/lichenification, erythema/hyperemia, edema/papules, excoriations/scratches, microvesiculation, exudation/wetting, hemorrhagic and serous crusts, hyperpigmentation, compared to traditional therapy of atopic dermatitis in children. 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 the participating institution. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.

Bladder Neck Obstruction: Experience and Management in a Sperm Bank.

Primary Bladder Neck Obstruction (PBNO) management provides medical and surgical treatment, such as transurethral incisions that can lead to retrograde ejaculation. The aim of this study was to investigate the maintenance of anterograde ejaculation and semen quality before and after this surgical procedure. A retrospective evaluation was carried out between 2011 and 2020. A total of 73 patients diagnosed with PBNO were recruited. Ejaculatory function, semen quality, and the fertility of recruited subjects were evaluated. Semen parameters-Baseline, 8.2% of patients were oligozoospermic and 12.3% had a semen volume below the WHO 2010 fifth percentile. Post-surgery, 20% of patients were oligozoospermic. We detected a significant decrease in total sperm number, a significant increase in the number of abnormal forms, and a reduction in the leukocyte concentration. Ejaculatory function-A total of 7.7% of patients reported anejaculation after transurethral incision of the bladder neck. Fertility-9.2% of the patients already had children before surgery; 13.8% had naturally conceived children in the years following surgery; 76.9% had no desire for paternity at the time. Our data have important implications for sperm bank management. The alterations in semen parameters and the risk of anejaculation suggest that the use of sperm cryopreservation before surgery for PBNO should be encouraged.

In-hospital outcomes of ST elevation myocardial infarction in post-COVID-19 patients

Aim. To study clinical and anamnestic data, as well as inhospital outcomes in patients with ST elevation myocardial infarction (STEMI) with prior coronavirus disease 2019 (COVID-19) compared with previously uninfected STEMI patients.Material and methods. This prospective study included 181 patients treated for STEMI. The patients were divided into 2 groups, depending on the anti-SARS-CoV-2 IgG titer as follows: the main group included 62 seropositive patients, while the control group — 119 seronegative patients without prior COVID-19. Anamnesis, clinical and paraclinical examination, including electrocardiography, echocardiography, coronary angiography, were performed. Mortality and incidence of STEMI complications at the hospital stage were analyzed.Results. The mean age of the patients was 62,6±12,3 years. The vast majority were men (69,1% (n=125)). The median time from the onset of COVID-19 manifestations to STEMI was 60,00 [45,00; 83,00] days. According to, the patients of both groups were comparable the severity of circulatory failure (p&gt;0,05). Coronary angiography found that in patients of the main group, Thrombolysis In Myocardial Infarction (TIMI) score of 0-1 in the infarct-related artery was recorded much less frequently (62,9% (n=39) vs, 77,3% (n=92), p=0,0397). Patients of the main group demonstrated a lower concentration of leukocytes (9,30*109/l [7,80; 11,40] vs 10,70*109/l [8,40; 14,00], p=0,0065), higher levels of C-reactive protein (21,5 mg/L [9,1; 55,8] vs 10,2 mg/L [5,1; 20,5], p=0,0002) and troponin I (9,6 ng/mL [2,2; 26,0] vs 7,6 ng/mL [2,2; 11,5], p=0,0486). Lethal outcome was recorded in 6,5% (n=4) of cases in the main group and 8,4% (n=10) in the control group (p=0,6409). Both groups were comparable in terms of the incidence of complications (recurrent myocardial infarction, ventricular fibrillation, complete atrioventricular block, stroke, gastrointestinal bleeding) during hospitalization (p&gt;0,05).Conclusion. Patients with STEMI after COVID-19, despite a more burdened history and higher levels of C-reactive protein and troponin I, compared with STEMI patients without COVID-19, did not differ significantly in clinical status, morbidity, and inhospital mortality.

Downregulation of cyclic adenosine monophosphate levels in leukocytes of hibernating captive black bears is similar to reported cyclic adenosine monophosphate findings in major depressive disorder.

Cyclic adenosine monophosphate (cAMP) levels in the lymphoblasts and leukocytes of patients with major depressive disorder (MDD) have been reported to be downregulated compared to in controls. cAMP is a derivative of adenosine triphosphate (ATP), and low ATP turnover has been reported in the state of hypometabolism associated with human MDD and with mammalian hibernation due to suppression of mitochondrial metabolism. Similarities have been noted between many state-dependent neurobiological changes associated with MDD in humans and with mammalian hibernation. To compare cAMP levels between human MDD and mammalian hibernation and to investigate whether cAMP downregulation is another state-dependent neurobiological finding, we measured cAMP concentrations in lysed leukocytes, plasma, and serum in serial blood specimens from nine female captive black bears (Ursus americanus; CBBs), and cortisol levels in serum from 10 CBBs. Cortisol levels were significantly higher during hibernation in CBBs, confirming previous findings in hibernating black bears and similar to findings in humans with MDD. cAMP levels were significantly lower during hibernation versus active states (pre-hibernation and exit from hibernation) and were similar to the cAMP downregulation reported in MDD patients versus euthymic patients or controls. cAMP level changes during the different states (hibernation, pre-hibernation, active) confirm their state-dependent status. These findings are similar to the neurobiological findings associated with the hypometabolism (metabolic depression) observed during mammalian hibernation and reported during MDD. A sudden increase in cAMP levels was observed before entrance into pre-hibernation and during exit from hibernation. Further investigation is suggested into the possible role of elevated cAMP levels in initiation of the chain reaction of changes in gene expression, proteins, and enzymes leading to the suppression of mitochondrial metabolism and to low ATP turnover. This process leads to hypometabolism, the old adaptive mechanism that is used by organisms for energy preservation and is associated with both mammalian hibernation and human MDD.

The Role of Supplementing a Complex Phytobiotic Feed Additive Containing (Castanea sativa mill) Extract in Combination with Calcium Butyrate, Zinc-Methionine and Essential Oils on Growth Indicators, Blood Profile and Carcass Quality of Broiler Chickens.

The purpose of this study was to determine the level of application and effectiveness of the use of vegetable feed additives from complex phytobiotic feed additives (CPFA) in the diets of broiler chickens, as well as their effects on growth indicators, carcass characters and blood profile. A total of 258 Ross 308 chicks were divided into six dietary regimens, including: a basal diet without additives as a first control group (CON); the second group received a basal diet supplemented with 200 g/t in the starter phase and 100 g/t in the grower and finisher phase; the third group-400 g/t and 200 g/t; the fourth group-600 g/t and 300 g/t; the fifth group-800 g/t and 400 g/t; and the sixth group-1000 g/t and 500 g/t of a complex phytobiotic supplement based on tannins, respectively. The CPFA contains the following: tannins 36.8-55.2%, eugenol 0.4-0.6%, cinnamon aldehyde 0.8-1.2%, zinc-methionine 1.6-2.4%, calcium butyrate 8-12%, silicon dioxide 1.2-1.8% and dextrose up to 100%. The maximum introduction of phytobiotics (1000 g/t) at 7 days of age leads to a decrease in the live weight of broilers which reduced by 8.27% (p < 0.05) compared to the minimum level of phytobiotics (200 g/t). From 15-21 days, the live weight was significant between the supplemented and control groups and represented 396.21, 384.81 and 384.16 vs. 316.91 g for the CPFA 4, CPFA 5, CPFA 1 and control group, respectively. Furthermore, the same trend was recorded in the average daily gain during the periods between 15-21 and 22-28 days of the experiment. Feeding CPFA had a positive effect on the carcass indicators, except for the feeding of CPFA 3 in the amount of 600 g/t in the starter phase and 300 g/t in the grower and finish phases, which recorded the lowest weight in relation to the CPFA 1 and 2 groups and represented 1309.58 vs. 1460.06 and 1456.52 g, respectively, and the difference was significant. The inclusion of CPFA in poultry diets contributed to an increase in lung mass in the experimental groups relative to the control group, except for the CPFA 5 group which represented the lowest weight of lung mass (6.51 g) and the differences were significant between the CPFA 2 and CPFA 3 and the control groups. The highest concentration of leukocytes was observed during the experiment period in the group of poultry receiving phytobiotics (CPFA 3), which significantly exceeded the control group by 2.37 × 109/L. A significant decrease in the level of cholesterol was recorded in the CPFA groups when compared to the control group and represented 2.83 vs. 3.55 mmol/L, respectively. Consequently, the introduction of vegetable feed additives from complex phytobiotic feed additives (CPFA) in the diets of Ross 308 chicks had a positive effect on the growth production, the carcass yield, the mass of the pectoral muscles and the mass of the lungs. Moreover, it did not cause a harmful effect on the biochemical parameters of the blood.

A Pilot Study on Blood Components in COVID-19 Affected Subjects: A Correlation to UPR Signalling and ER-Stress.

The endoplasmic reticulum (ER) is the site for protein synthesis, its folding and secretion. An intricate set of signalling pathways, called UPR pathways, have been evolved by ER in mammalian cells, to allow the cell to respond the presence of misfolded proteins within the ER. Breaching of these signalling systems by disease oriented accumulation of unfolded proteins may develop cellular stress. The aim of this study is to explore whether COVID-19 infection is responsible for developing this kind of endoplasmic reticulum related stress (ER-stress). ER-stress was evaluated by checking the expression of ER-stress markers e.g. PERK (adapting) and TRAF2 (alarming). ER-stress was correlated to several blood parameters viz. IgG, pro- and anti-inflammatory cytokines, leukocytes, lymphocytes, RBC, haemoglobin and PaO2/FiO2 ratio (ratio of arterial oxygen partial pressure to fractional inspired oxygen) in COVID-19 affected subjects. COVID-19 infection was found to be a state of protein homeostasis (proteostasis) collapse. Changes in IgG levels showed very poor immune response by the infected subjects. At the initial phase of the disease, pro-inflammatory cytokine levels were high and anti-inflammatory cytokines levels were low; though they were partly compromised at later phase of the disease. Total leukocyte concentration increased over the period of time; while percentage of lymphocytes were dropped. No significant changes were observed in cases of RBC counts and haemoglobin (Hb) levels. Both RBC and Hb were maintained at their normal range. In mildly stressed group, PaO2/FiO2 ratio (oxygenation status) was in the higher side of normal range; whereas in other two groups the ratio was in respiratory distress syndrome mode. Virus could induce mild to severe ER-stress, which could be the cause of cellular death and systemic dysfunction introducing fatal consequences. Schematic representation of SARS-CoV-2 infection and related consequences.

The relationship of hemorheological disorders with the development of endotoxicosis in the rehabilitation period of acute poisoning

The aim of the study. Obtaining new data on the pathogenesis of endotoxicosis (ET) in the rehabilitation period of acute poisoning by assessing the conjugacy of hemorheology (HR) disorders with the development of ET. Material and methods. To obtain new information about the pathogenesis of acute poisoning in the rehabilitation period in 145 patients with severe acute poisoning with psychopharmacological agents (PFAp) due to the addition of pneumonia, neurotoxicants (NTp) with the development of toxic hypoxic encephalopathy and corrosive substances (CSp) with deep and widespread burns of the mucous membranes of the gastrointestinal tract, a pair correlation analysis of the block structure of the obtained correlation matrix was undertaken, establishing the relationship between the two indicators, as well as a canonical correlation analysis revealing the nature of the statistical relationship between groups of indicators, with the calculation of the canonical correlation coefficient. Results. As a result, statistically significant correlations were established between the indicators HR (viscometric, aggregation and indicators hemostasis) and ET (total and effective albumin concentration, the level of medium molecular weight peptides, the content of leukocytes, lymphocytes, neutrophils and circulating immune complexes detected in the blood, and his integral indicators) (-0.32-0.48 for PFAp, 0.29-0.35 for NTp and 0.28-(-0.51) for CSp), as well as statistically significant values canonical correlation coefficients, which indicated the development of ET due to disorders of HR. Limitations. The study was performed on laboratory data obtained during the examination of patients with acute poisoning, and therefore has no restrictions for the further use of this methodological approach in clinical trials. Conclusion. The obtained data can serve to optimize the treatment of ET in this pathology by targeted therapeutic effects on parameters of HR (on viscosity and hemostasis in PFAp and NTp, and in CSp, in addition, on aggregation).

The opportunities of using a natural adaptogen from the &lt;i&gt;Galleria mellonella&lt;/i&gt; larvae in veterinary medicine

A comparative analysis of the adaptation effects of the Porsolt test of fractionated solutions obtained from the products of the larvae of the large wax moth (Galleria mellonella) on biological systems was performed. The method of X-ray photoelectron spectroscopy determined that in the obtained light fraction of the products of larval life there is a high-energy component of N1s spectra (~402.0 eV) and bond energy for carbon in the C-N bond (~286.0 eV), which indicates the presence of protonated amino groups in the samples. Absorption at 1700 cm-1 can be attributed to the presence of dicarboxylic amino acids (glutamic and aspartic) and other organic acids, which are much less in the heavy fraction. During oral administration of the studied extracts, their multidirectional effect on the intestines of laboratory mice was found. The negative effect of heavy fraction on the microbiocenosis of the intestine by the qualitative composition of the microflora was detected. When the light fraction is used, the intestinal microflora is close to the control. Analysis of the number of leukocytes of the small intestine when the fractions were injected reflected the local immune response of the body. The content of these cells on the mucosal plate of mice injected with the lung fraction was 67.2% higher than that of the control mice (p ≤ 0.05). The content of leukocytes on the own plate of the mucosa of mice injected with the heavy fraction was 2.7 times higher compared to the control, indicating an inflammatory reaction. The difference between the experimental groups is significant (p ≤ 0.001). The comparative effect of the fractions showed that their oral administration had a different effect on the swimming time compared to the control. After 20 days of the experiment, mice injected with the heavy fraction had significantly increased their swimming time compared to the first day (p ≤ 0.05). However, a negative adaptogenic effect compared to the control group is noticeable. A significant difference was found between the results on the 30th day between the experimental groups, which indicates a pronounced difference in the results obtained.

Decrease of air pollution during lockdown in Tuscany (Italy): An effect on sperm DNA fragmentation?

In March 2020, the Italian government imposed a national lockdown which was almost completely removed in June 2020. Due to the abrupt stop of human activities, emissions of air pollutants decreased. Air pollution is an environmental risk factor for noncommunicable disease and mortality. Emerging evidence also suggests a role in male infertility. In this study, we compared sperm DNA fragmentation (sDF) levels and conventional semen parameters between subjects undergoing sDF determination and routine semen analysis in a single Italian centre, during about 6 months before (N = 119) and after lockdown (N = 105). After lockdown, we found an improvement of sperm progressive motility (48.00[38.50-58.00]% vs. 42.00[33.00-53.00]%) and sDF levels (as total: 24.79[18.33-33.97]% vs. 35.02[25.04-45.73]%, p < .001; brighter: 14.02[10.69-17.93]% vs 18.54[13.58-25.82]%, p < .001 and dimmer sDF: 9.24[5.64-15.78]% vs. 12.24[8.08-19.10]%, p < .01), mirrored by a decrease of leukocyte semen concentration (p < .01). The improvement of sperm motility and DNA quality was maintained after adjusting for leukocyte concentration and several conditions known to affect sperm motility and/or sDF levels. With a significant decrease in air pollution observed in Tuscany during and after lockdown, associated improvement in sperm motility and DNA quality in patients referred to the infertility clinic is suggestive of the potential role of air pollution in male infertility.

Adaptive changes of cows blood under technological stress

The creation of livestock complexes with the introduction of new methods of organization and technologies has led to a wide manifestation of technological stresses in cattle. Stress reduces the natural resistance and the level of humoral immunity, as a result of which conditions are created for the activation of conditionally pathogenic microflora, which leads to digestive disorders, respiratory diseases, decreased productivity, increased morbidity and mortality of animals. Therefore, the analysis of adaptive reactions of blood in cows under technological stress will allow us to assess the state of the body and timely develop measures to prevent emerging disorders. The marker of the general adaptation process is the blood system. The study of the content of leukocytes, erythrocytes, ATP in erythrocytes, electrophoretic mobility of erythrocytes (EFPE) of cattle blood under technological stress.It was shown that in animals after technological stress there was a significant increase in the number of leukocytes on the 3rd- 14th day of the study compared with the control group of animals, the development of neutrophilosis, monocytosis and lymphopenia was noted. The number of red blood cells, hemoglobin concentration, EFPE and ATP content after technological stress were lower compared to the control group for 3 days. Thus, to correct technological stress in cows, means are needed that increase the overall adaptive capabilities of the animal organism.

The content of leukocytes with sex chromatin in the blood and bone marrow of newborn mice

In the colostrum period, in the formation of immunity in newborns, a significant role belongs to colostrum cells, namely, lymphocytes. The synthesis of colostrum by the mammary gland is an important component for the further growth and development of offspring. Lymphocytes, getting into the body of a newborn with colostrum, activate the system of cellular immunity. In newborns, leukocytes with Barr bodies are found in the blood and bone marrow and, therefore, are maternal leukocytes transferred to the newborn along with colostrum. Sex chromatin (or Barr's body) is found in the cells of females only. Given this fact, it was interesting for us to detect the presence of leukocytes with Barra bodies in the blood and red bone marrow of newborn male mice. The aim of our study was to identify the presence of leukocytes with sex chromatin in the blood and bone marrow of newborn mice. The blood and bone marrow of newborn male mice of the colostrum period were used for the study. Prepared blood and red bone marrow preparations were examined using immersion optics. The study of the leukogram showed that in 3-day-old male mice there is a change in the blood profile from neutrophilic to lymphocytic. The ratio of lymphocytes and segmented neutrophils was 62,44±1,73 % and 42,34±1,56 %, respectively. At the same time, sex chromatin was found in 4,13± 1,35 % lymphoid cells, while in the red bone marrow of newborn male mice, 13,26±1,84 % lymphocytes were cells of maternal origin (p&lt;0,001). Lymphocytes with maternal sex chromosomes penetrate into the central organs of the immune system of the newborn male mouse. In the colostrum, the content of lymphoid cells in the secretion of the mammary gland increases. The transfer, with colostrum, of immunity from the mother to the newborn is not only passive, but also the foundation is laid for the normal functioning of the immune system in the future. Colostrum cells are the basis of colostral cellular immunity. As a result, the newborn establishes a stable and long-term immunity.

Orthobiologic Treatment of Ligament Injuries.

Ligament injuries are common causes of joint pain, dysfunction, and disability resulting in disruption of joint homeostasis. Ligament injuries have historically been treated surgically. The autologous orthobiologic preparation used for treatment can influence the varying results reported. Therefore, to truly understand and compare results of these powerful therapies, reporting standardization, such as harvesting techniques, concentration techniques, quantification of the delivered product (platelets, progenitor cells), formulations (leukocyte content), number of injections performed, activation, injection technique (guided vs unguided), in addition to the post treatment rehabilitation process, are all important and necessary to evaluate and compare efficacy of future studies.

P758 Impact of co-medication on rates of endoscopic remission: post-hoc analysis of randomised non-inferiority trial of 1600 mg versus 400 mg tablets of mesalazine for the treatment of mild-to-moderate ulcerative colitis

Abstract Background Some studies reported that anti-TNF treatment in biologic-naïve elderly onset inflammatory bowel disease patients may be less effective than in non-elderly onset patients (Amano et al. Scientic Reports. 2022 12:5324). We assessed known factors as well as presence of co-morbidities and polypharmacy associated with endoscopic remission in mild-to-moderate (Mayo clinic score ≥5) adult ulcerative colitis (UC) patients treated with mesalazine. Methods In a post-hoc analysis of data from a phase 3 non-inferiority trial ( D’Haens et al. Aliment Pharmacol Ther.2017;46:292–302)we examined the strength of association between number of co-medications and comorbidities by calculating Spearman’s rho. We used multivariable logistic regression modeling to determine the associations between endoscopic remission as outcome (yes vs. no; defined as either Mayo endoscopic subscore of 0 or ≤1 according to blinded central reading) and independent variables (disease duration, Mayo endoscopic score at baseline, leucocyte concentration at baseline, Robarts Histopathologic Index at baseline, age [≤60 vs. &amp;gt;60 years of age], gender, comedications at the time of the trial [none, ≤2, ≥3], comorbidities [none, 1-2, 3-5, &amp;gt;5], body mass index, disease extent prior to the trial, smoking status [current, ex, and never] at week 8 and 38. Collinear variables were examined in separate models. P-value of &amp;lt;0.05 was considered to be statisically significant. Results We analyzed data on 774 patients (330 female, 43.5±14.3 [SD] years of age, median disease duration of 3.00 years [IQR 0.56; 7.88], 175 and 92 persons with 1-2 and ≥3 comedications, respectively) and 679 patients (289 female, 43.7±14.5 [SD] years of age, median disease duration of 2.99 years [0.57; 7.62]; 150 and 85 persons with 1-2 and ≥3 comedications, respectively) that had colonoscopy/sigmoidoscopy at 8 weeks of double-blind induction and 38 weeks open-label maintenance phases of the study, respectively. We observed a moderate association between number of comorbidities and comedications (week 8: Spearman rho=0.545, P-value of &amp;lt; 0.001; week 38: Spearman rho=0.512, P-value &amp;lt; 0.001). Patients with baseline Mayo clinic endoscopic score of 3 and increased baseline leucocyte concentration, were less likely to be in endoscopic remission irrespective of endoscopic remission definition and time post treatment (Table 1). In addition, patients with ≥3 co-medications were less likely to be in endoscopic remission of 1 at week 8 and 38 and in endoscopic remission of ≤1 at week 38 (Table 1). Conclusion The increased number of co-medications rather than the actual age may be responsible for decreased effectiveness of medications, including mesalazine, in elderly UC patients highlighting the importance of healthy aging.

Influence of Sports Training in Foothills on the Professional Athlete's Immunity.

Neuroplasticity and inflammation play important part in the body's adaptive reactions in response to prolonged physical activity. These processes are associated with the cross-interaction of the nervous and immune systems, which is realized through the transmission of signals from neurotransmitters and cytokines. Using the methods of flow cytometry and advanced biochemical analysis of blood humoral parameters, we showed that intense and prolonged physical activity at the anaerobic threshold, without nutritional and metabolic support, contributes to the development of exercise-induced immunosuppression in sportsmen. These athletes illustrate the following signs of a decreased immune status: fewer absolute indicators of the content of leukocytes, lowered values in the immunoregulatory index (CD4+/CD8+), and diminished indicators of humoral immunity (immunoglobulins A, M, and G, and IFN-γ). These factors characterize the functional state of cellular and humoral immunity and their reduction affects the prenosological risk criteria, indicative of the athletes' susceptibility to develop exercise-induced immunosuppression.

Study of high-altitude cerebral edema using multimodal imaging.

To analyze the brain imaging features of high-altitude cerebral edema (HACE) using computed tomography (CT) and multi-sequence magnetic resonance imaging (MRI) and to explore its injury characteristics. We selected 30 patients with HACE diagnosed between January 2012 to August 2022 as the experimental group and 60 patients with dizziness on traveling from the plain to the plateau or from lower altitude to higher altitude in a short period of time as the control group. We collected general clinical data from the experimental group and classified it according to clinical symptoms. In both groups, we then performed a head CT and multi-sequence MRI (T1WI, T2WI, FLAIR, and DWI). Among them, nine patients with HACE were also scanned using susceptibility-weighted imaging (SWI). Finally, we analyzed the images. According to clinical symptoms, we divided the 30 cases of HACE into 12 mild cases and 18 severe cases. There was no significant difference in sex, age, leukocyte, neutrophil, or glucose content between mild and severe HACE. The sensitivity and specificity of the MRI diagnosis were 100 and 100%, respectively, while the sensitivity and specificity of the CT diagnosis were 23.3 and 100%, respectively. The distribution range of deep and juxtacortical white matter edema was significantly larger in severe HACE than in mild HACE (p < 0.001). The corpus callosum edema distribution range in severe HACE was significantly larger than that in mild HACE (p = 0.001). The ADC value of the splenium of the corpus callosum was significantly lower in severe HACE than in mild HACE (p = 0.049). In mild and severe HACE, the signal intensity of the DWI sequence was significantly higher than that of conventional MRI sequences (T1WI, T2WI, FLAIR) (p = 0.008, p = 0.025, respectively). In severe HACE, seven cases showed bilateral corticospinal tract edema at the thalamic level, and SWI showed cerebral microbleeds (CMBs) in five cases, especially in the corpus callosum. MRI has more advantages than CT in the evaluation of HACE, especially in the DWI sequence. The white matter injury of severe HACE is more severe and extensive, especially in the corpus callosum, and some CMBs and corticospinal tract edema may also appear.

The use of 8-diff clinical blood testing of patients to assess the severity of the new coronavirus infection

Introduction. A new coronavirus infection causes a variety of changes in the body of an infected person, which can be monitored using clinical blood analysis. The capabilities of flow cytometry allow to expanding the range of analyzed cell populations, which gives a more complete picture of the patient’s condition and the course of infection process.Aim. To study the extended 8-diff clinical blood analysis in patients with COVID-19 and to identify the parameters characterizing a severe course and an unfavorable outcome.Material and Methods. The study group comprised 282 patients with a confirmed diagnosis of a new coronavirus infection. The following parameters of the extended 8-diff clinical blood test were evaluated: the total content of leukocytes and their populations, the number of reactive and antibody-synthesizing lymphocytes (RE-LYMPH, AS-LYMPH), indicators characterizing the reactivity and granularity of neutrophils (NEUT-RI, NEUT-GI), erythrocyte count, hemoglobin level, normoblast count, and platelet count. Statistical data were processed using the Statistica 10.0 software.Results. The blood picture of patients with a severe course of COVID-19 as well as of those with an unfavorable outcome of disease was characterized by neutrophilia, normoblastemia, and an increase in the number of immature granulocytes. At the same time, there was a significant decrease in the number of lymphocytes and monocytes below the reference interval and a decrease in the number of eosinophils to the extent of complete absence. The performed logistic regression analysis allowed to determine the most significant hematological parameters in predicting the outcome of COVID-19 as follows: the total number of leukocytes (OR 1.3), neutrophils (OR 2.1), reactive neutrophils (OR 1.3), eosinophils (OR 0.05), monocytes (OR 0.2), lymphocytes (OR 0.4), and neutrophil-to-lymphocyte ratio (NLR) (OR 1.4). Also, the threshold values were established for these parameters as follows: the total number of leukocytes &gt; 7.2 × 109/L, neutrophils &gt; 5 × 109/L, reactive neutrophils &gt; 48.6 Fi, eosinophils &lt; 0.05 × 109/L, lymphocytes &lt; 1.3 × 109/L, monocytes &lt; 0.5 × 109/L, and NLR &gt; 2.9 were associated with an unfavorable outcome of the disease.Conclusion. The obtained data may be used for a comprehensive evaluation of COVID-19 patient condition along with other laboratory markers of the severe course of the infection.