Leukocyte Concentration Research Articles

The influence of recombinant interferon on morphological and biochemical parameters of calves’ blood in early postnatal period

The main mortality of young cattle due to infectious diseases mostly occurs in the first two months of the life, which is resulted from the calves' immune system immaturity. In order to correct the immunological status, various immunomodulators are used, interferons in particular. The aim of the study was to assess the effect of recombinant bovine interferon-α2d on the biochemical and morphological parameters of the calves' blood in the early postnatal period. Two groups of young animals were formed. Calves from the 1st group (G1,n=10) was twice injected interferon intramuscularly with the interval between injections - 7 days (500 th. MU). The 2nd group was a control (G2, n=10), the injection of the immunostimulant was replaced with saline. Before the beginning (on the 7th day of life) and at the end of the experiment (on the 21st day of life), the blood was taken for the biochemical and morphological analysis. In G1 and G2, the concentration of unconjugated bilirubin at the beginning of the experiment was 2.2 ± 0.2 and 2.1 ± 0.3 mmol/L respectively, in the G1 interferon concentration decreased to 1.1 ± 0.1 mmol/L, which was 2 times less than in the G2 (P ≤ 0.01). The activity of alkaline phosphatase at the beginning of the study was 613.8 ± 54.2 in the G2 and 514.6 ± 22.4 units/L in the G1. By the 21st day of life, the level of it decreased by 16.2% (431, 1 ± 38.0 units/L) in the G1, and it was less by 31.3% (P ≤ 0.05) than the G2 (627.3 ± 77.6 units/ L). The ALT activity at the beginning of the experiment was 4.0 ± 0.8 unit/ L in the G2 and 6.1 ± 1.2 units/L in the G1. After two weeks in the G2 level of ALT increased to 6.0 ± 2.0 U / L, while in calves from the G1, on the contrary, it was decreased in 2.4 times (P≤0.05) - 2.5 ± 0.1 U / L. The AST activity in the intact group by the 21st day was 16.0 ± 8.0 units/ L, which was 8.4 times higher (P≤0.05) than in the G1 (1.9 ± 0.4). Under the influence of interferon, there was the increase in the average concentration of leukocytes (by 13.2%), as well as the decrease in the relative number of neutrophils by 36.8% (P≤0.05). The absolute number of agranulocytes increased by 37.7% (P≤0.05) compared to the control one (5.3 ± 0.5 * 109/ L) and it was 7.3 ± 0.7 * 109/ L. Thus, parenteral injection of recombinant bovine interferon-α2d to calves in the early postnatal period causes the decrease in transaminase activity and bilirubin concentration, as well as the increase in the number of cells responsible for the humoral immune response.

Volutrauma Increases Exhaled Pentanal in Rats: A Potential Breath Biomarker for Ventilator-Induced Lung Injury.

Mechanical ventilation injures lungs, but there are currently no reliable methods for detecting early injury. We therefore evaluated whether exhaled pentanal, a lipid peroxidation product, might be a useful breath biomarker for stretch-induced lung injury in rats. A total of 150 male Sprague-Dawley rats were investigated in 2 substudies. The first randomly assigned 75 rats to 7 hours of mechanical ventilation at tidal volumes of 6, 8, 12, 16, and 20 mL·kg-1. The second included 75 rats. A reference group was ventilated at a tidal volume of 6 mL·kg-1 for 10 hours 4 interventional groups were ventilated at a tidal volume of 6 mL·kg-1 for 1 hour, and then for 0.5, 1, 2, or 3 hours at a tidal volume of 16 mL.kg-1 before returning to a tidal volume of 6 mL·kg-1 for additional 6 hours. Exhaled pentanal was monitored by multicapillary column-ion mobility spectrometry. The first substudy included cytokine and leukocyte measurements in blood and bronchoalveolar fluid, histological assessment of the proportion of alveolar space, and measurements of myeloperoxidase activity in lung tissue. The second substudy included measurements of pentanal in arterial blood plasma, cytokine and leukocyte concentrations in bronchoalveolar fluid, and cleaved caspase 3 in lung tissue. Exhaled pentanal concentrations increased by only 0.5 ppb·h-1 (95% confidence interval [CI], 0.3-0.6) when rats were ventilated at 6 mL·kg-1. In contrast, exhaled pentanal concentrations increased substantially and roughly linearly at higher tidal volumes, up to 3.1 ppb·h-1 (95% CI, 2.3-3.8) at tidal volumes of 20 mL·kg-1. Exhaled pentanal increased at average rates between 1.0 ppb·h-1 (95% CI, 0.3-1.7) and 2.5 ppb·h-1 (95% CI, 1.4-3.6) after the onset of 16 mL·kg-1 tidal volumes and decreased rapidly by a median of 2 ppb (interquartile range [IQR], 0.9-3.2), corresponding to a 38% (IQR, 31-43) reduction when tidal volume returned to 6 mL·kg-1. Tidal volume, inspiratory pressure, and mechanical power were positively associated with pentanal exhalation. Exhaled and plasma pentanal were uncorrelated. Alveolar space decreased and inflammatory markers in bronchoalveolar lavage fluid increased in animals ventilated at high tidal volumes. Short, intermittent ventilation at high tidal volumes for up to 3 hours increased neither inflammatory markers in bronchoalveolar fluid nor the proportion of cleaved caspase 3 in lung tissue. Exhaled pentanal is a potential biomarker for early detection of ventilator-induced lung injury in rats.

Особливості мікрофлори при дисбактеріозах урогенітального тракту у жінок

The microbiocenosis of the vagina is a set of microorganisms that inhabit this habitat, normally represented mainly by lactobacilli. The condition of the microbiocenosis of the vagina is of great importance for reproductive health. Bacterial vaginosis and aerobic vaginitis are infectious diseases of the vagina caused by imbalances between physiological and opportunistic microflora, which are normally found in small quantities. The purpose of the study. The work is devoted to the study and analysis of the microflora of the urogenital tract of women in different periods of life with dysbiotic disorders. Materials and methods. A study of the vaginal microflora of 50 women of different ages who complained to a gynecologist was carried out. Microscopic examination of biological material from the vagina using Pappenheim staining showed complete or partial absence of lactobacilli in the samples and their replacement by other bacteria. Smear microscopy showed an increased content of epithelial cells, leukocytes and "key cells" - Gardnerella vaginalis in 25% of women of the 2nd age category (25-35 years old). In women of the 1st and 3rd age categories (15-25 and 45-65 years old, respectively), the content of epithelial cells and leukocytes was normal or slightly higher than normal. Results and discussion. In no case were gonococci and Trichomonas detected in the examined smears. Lactobacilli (bacillus flora) were most often registered in the 1st age category - almost 80%, against 12% in the second and 13% in the third. In 68% of women of the 2nd age category the mixed coco-stick flora prevailed; in the 3rd age group mixed microflora was found in 36% of people; in the first – was absent. Poor microflora was most often found in group 3 of women – 66%, against 20% in group 2, and was not observed in women of group 1. Real-time polymerase chain reaction was used to identify microorganisms in the studied samples. Conclusion. As a result of the survey of women of all ages, 155 strains of pathogenic microorganisms were isolated. The largest number of samples contained Candida spp. (18.7%), Staphylococcus spp. (10.3%), Gardnerella vaginalis (9.7%), Streptococcus spp. (7.1%), Mobiluncus spp., Atopobium vaginae, Leptotrichia spp., Eubacterium spp. were detected in a small number of samples, Ureaplasma urealytic and Mycoplasma hominis were not detected

The condition of piglet immune system during post-weaning period depending on the sex and stress-reactivity

The immune system of 90-day old piglets of SM-1 Novosibirsk breed piglets depends on sex and stress-reactivity. Stress-reactivity was measured using halothane test. The immunologic testing was performed 30 days after weaning. Our results show that overall piglet immune system demonstrated high proliferative activity of T- and B- immunocompetent cells with active formation of mature active T-and B-lymphocytes and did not show signs of immunosuppression. Compared to guilts, barrows had higher concentration of leucocytes, T-and B-lymphocytes, killer-supressor T-cells, activated and poorly differentiated T-lymphocytes. Gilts had higher production of inductor-helper T-cells, IgM and IgG when compared to barrows. Stress-resistant piglets had higher concentration of B-lymphocytes, IgM and IgG whereas stress-sensitive piglets had higher concentration of T-lymphocytes, supressor-killer T-cells and thymus T-lymphocytes. Gilts had higher concentration of inductor-helper T-cells than killer-supressor T-cells. Gilts overall had intensive antibody synthesis, however, stress-resistant gilts had higher IgG synthesis compared to stress-sensitive gilts. In barrows immature T-lymphocytes differentiated mainly into killer-supressor T-cells. The adaptivity of barrow immune system was characterized by high circulatory B-lymphocytes and IgM. Stress-sensitive barrows had lower antibody synthesis levels and higher T-lymphophoesis compared to stress-resistant barrows.

Platelet-Rich Plasma Centrifugation Changes Leukocyte Ratios.

Platelet-rich plasma (PRP) is usually described with respect to its platelet concentration and sometimes the concentration of erythrocytes and leukocytes. In this study, we examined the numbers of leukocyte subtypes in PRPs prepared by five different methods. Single spin PRP methods evaluated resulted in a significant increase in the percentage of lymphocytes and proportional/inverse reduction of the percentage of granulocytes in comparison to those percentages found in whole blood. We propose that the centrifugation process traps the denser granulocytes in the RBC layer more readily than lymphocytes and that this will vary by g force and time. The PRP preparation method may be clinically relevant, because the distribution of leukocytes may affect clinical outcomes.

Allogeneic transplant procurement in the times of COVID-19: Quality report from the central European cryopreservation site

BackgroundBecause of limitations of transportation imposed by the COVID-19 pandemic, current recommendation calls for cryopreservation of allogeneic stem cell transplants before patient conditioning. A single cell therapy laboratory was selected to function as the central cryopreservation hub for all European registry donor transplants intended for the Australian-Pacific region. We examined properties of these transplants to ascertain how quality is maintained.MethodsWe analyzed 100 pandemic-related allogeneic mobilized blood-derived stem cell apheresis products generated at 30 collection sites throughout Europe, shipped to and cryopreserved at our center between April and November of 2020. Products were shipped in the cool, subsequently frozen with DMSO as cryoprotectant. Irrespective of origin, all products were frozen within the prescribed shelf-life of 72 h.ResultsPrior to cryopreservation, viable stem cell and leukocyte count according to the collection site and our reference laboratory were highly concordant (r2 = 0.96 and 0.93, respectively) and viability was > 90% in all instances. Median nominal post-thaw recovery of viable CD34+ cells was 42%. Weakly associated with poorer CD34+ cell recovery was higher leukocyte concentration, but not time lag between apheresis or addition of cryopreservant, respectively, and start of freezing. The correlation between pre- and post-thaw CD34+ cell dose was high (r2 = 0.85), hence predictable. Neutrophil and platelet engraftment were prompt with no evidence of dose dependency within the range of administered cell doses (1.31–15.56 × 106 CD34+ cells/kg).ConclusionsGeneral cryopreservation of allogeneic stem cell transplants is feasible. While more than half of the CD34+ cell content is lost, the remaining stem cells ensure timely engraftment.

Influence of different types of anesthesia on the inflammatory response in laparoscopic hysterectomy

The aim of the study was to evaluate the influence of different variants of anesthesia, including low-opioid (LOA) and opioid-free anesthesia (OFA), on the dynamics of the inflammatory response during laparoscopic hysterectomy.
 Materials and methods: 102 patients were randomly allocated into 3 groups: 37 women assigned to receive a standard opioid-based anesthesia (OBA group), 33 women – LOA group and 32 patients – OFA group. In the LOA group, the amount of fentanyl was halved and lidocaine infusion and ketamine were additionally infused during induction. In the OFA group, ketamine, lidocaine and dexmedetomidine were additionally infused instead of fentanyl.
 Results: Conducting a laparoscopic hysterectomy is accompanied by the activation of the inflammatory process and is manifested by an increase in the content of leukocytes and granulocytes, and a decrease in the number of lymphocytes, which is accompanied by an increase in the leukocyte index of intoxication. These changes were most significant in patients undergoing standard anesthesia. The activation of the inflammatory process is confirmed by an increase in the level of pro-inflammatory IL-6 in all groups from 28.8 % to 92.9 %, and it was most pronounced in patients who underwent LOA. In the same group, the greatest increase in the level of anti-inflammatory IL-10 was also noted, the level of which was 115.4 % higher (p=0.036) than in the control group. An increase in the content of the pro-inflammatory cytokine IL-6 in each group and a parallel increase in anti-inflammatory IL-10 in groups 2 and 3, with a simultaneous decrease in it in group 1 led to a significant increase in the IL-6 / IL-10 ratio in the control group. This indicator was significantly higher than in groups 2 and 3 by 42.3 % (p=0.043) and 52.7 % (p=0.041), respectively, while the IL-6 / IL-10 ratio in these groups was not differed from the initial state.
 Conclusion: Laparoscopic hysterectomy is accompanied by activation of the inflammatory process and is manifested by an increase in the content of leukocytes and granulocytes and a decrease in the number of lymphocytes, which is accompanied by an increase in the leukocyte index of intoxication. These changes were most significant in patients undergoing standard anesthesia. The use of LOA and OFA is accompanied by a lower activation of the inflammatory response in laparoscopic hysterectomy than in standard anesthesia, but requires further study

Differential impacts of trail and ultra-trail running on cytokine profiles: An observational study.

Endurance running events are known to cause inflammation and result in increased cytokine production. However, the effects of ultramarathons on cytokine profiles are not well characterized. The aim of this study was to describe and compare the effects of a trail (40 km) race and an ultra-trail (171 km) race on leukocyte concentrations and cytokine profiles. The study was conducted during the Ultra-Trail du Mont Blanc® ultra-marathon running event, and included 11 runners who completed the 40 km trail run and 12 runners who completed the 171 km ultra-trail. Blood samples were taken before and after the races. Leukocyte concentrations significantly increased after both races. Circulating levels of IL-6, IL-1β, MCP-1, and IFN-γ were significantly higher after the longer race compared to the shorter race. Furthermore, while both races resulted in significant increases in IL-6 and IL-8, only the longer race resulted in significant increases in MIP-1β, IL-7, IL-17a, and IL-4. These results illustrate that a 171 km ultra-trail race results in greater modulations in cytokine profiles than a traditional trail race.

Evaluation of Inflammatory Acute Phase Protein Level and Different Leukocyte Counts in Chronic Periodontitis Normolipidemic Patients after Nonsurgical Periodontal Therapy

To evaluate the effect of nonsurgical periodontal therapy on periodontal parameters, serum C-reactive protein (CRP) level, total leukocyte count (TLC), and differential leukocyte count (DLC) in normolipidemic patients with generalized chronic periodontitis. A total of 60 subjects (38 males and 22 females) between 20 and 55 years of age were included in this study. Twenty subjects with generalized chronic gingivitis were assigned group I. Forty subjects with generalized chronic periodontitis were randomly divided into test groups, i.e., group II (n = 20) and control group, i.e., group III (n = 20). At baseline, clinical parameters (plaque and gingival indices, clinical attachment loss) were recorded and blood collected for lipid profile test, TLC, DLC, and CRP estimation. Patients with lipid values in the normal range continued the study. Groups I and II were provided nonsurgical periodontal therapy. Follow-up clinical examination and blood examination were done for CRP level, TLC, and DLC after 1 and 2 months. A significant improvement in the clinical parameters was evident following scaling and root planning in group II as compared to group III. A decrease in serum CRP and TLC count was also observed, but the difference was not significant. Moreover, a reduction was observed in neutrophils, monocytes, eosinophils post therapeutically in group II but the decrease was significant only for monocyte count. Based on the findings of the study, it can be concluded that nonsurgical periodontal therapy can reduce the inflammatory component. Periodontal diseases comprise a wide range of inflammatory conditions affecting the supporting structures of teeth. Effect of nonsurgical periodontal therapy on chronic periodontitis can be evaluated by measuring the CRP and leukocyte concentration.

ROLE OF ATYPICAL CHEMOKINE RECEPTOR 2 IN PERIVASCULAR ADIPOSE TISSUE INFLAMMATION IN ANGIOTENSIN II DEPENDENT HYPERTENSION

Objective: Hypertension (HT) is associated with perivascular adipose tissue (PVAT) inflammation in which chemokines play a crucial role. Atypical chemokine receptor 2 (ACKR2) is essential for CC-chemokine ligand binding and their degradation resulting in regulation of inflammation. We hypothesized that ACKR2 is important for immune cell recruitment into PVAT. Design and method: Using flow cytometry we analysed the numbers of leukocytes infiltrating PVAT in ACKR2-/- mice and WT (wild-type, C57BL/6J) infused for 14 days with Ang II (angiotensin II, 490ng/min/kg). Results: Chronic infusion of Ang II caused increased of leukocyte (CD45+) content in PVAT in both WT and ACKR2-/- mice. This increase was particularly evident for T cell subsets in WT but not in ACKR2-/-. However the number of macrophages (F4/80+CD11b+) was increased in both groups. Interestingly, ACKR2-/- revealed decreased T cell number infiltrating PVAT upon Ang II infusion in comparison to WT. Hypertension was associated with increased CCR1, CCR2 and CCR3 expression in PVAT in both WT and ACKR2-/-. However, ACKR2-/- revealed higher expression of CCR1 and CCR2 but not CCR3 in comparison to WT. Interestingly, increased expression of CCR5 in PVAT upon Ang II infusion in WT was not observed in ACKR2-/-. Hypertension resulted in increased RANTES level in aorta and PVAT to the same extent in both WT and ACKR2-/-. However, MCP-1, MIP-1 alpha and MIP-1 beta level was higher in ACKR2-/- aorta than in WT aorta upon Ang II infusion. ACKR2 expression was lower in PVAT than in aorta. Interestingly, Ang II administration decreased the expression of ACKR2 in aorta but increased ACKR2 level in thoracic PVAT. RNAscope analysis revealed ACKR2 expression in vascular smooth muscle cells (VSMC). Vessels isolated from ACKR2-/- were protected from vascular dysfunction and revealed reduced ROS production in comparison to WT upon Ang II administration. ACKR2-/- mice developed similar extent of blood pressure increase as WT in hypertension. Conclusions: In hypertension, ACKR2-/- is associated with decreased T cell content and reduced CCR5 expression in PVAT. This is accompanied by improved vascular function and diminished ROS production, independently of blood pressure regulation.

Systemic and vascular inflammation in experimental allergic asthma.

Allergic asthma and atherosclerosis are inflammatory diseases characterized by similar sets of circulating inflammatory cells, in addition to mast cells in the airway and vessel wall. Animal models and human studies provide evidence of a potential interaction between the two apparently unrelated diseases. The main objective of this study was to determine whether experimental allergic asthma is accompanied by inflammatory responses, measured as the activation of the vasculature and the presence of immune cells in the perivascular adipose tissue. For this purpose, male Dunkin Hartley guinea pigs weighing 250 - 300 g were sensitized twice with 10 μg ovalbumin dissolved in aluminium hydroxide (Al(OH)3). Allergen inhalation was performed 10 days after the second immunization and continued 5 days a week for 2 months. After that period, T cell and macrophage content was measured by flow cytometry. The aortic expression of inflammatory markers was studied by real-time PCR. The number of T cells in the peripheral blood was significantly greater in the allergic group in comparison to the sham group. We did not find any significant differences in the leukocyte content of the perivascular adipose tissue between the groups. Nor did we identify significant changes in the expression of inflammatory markers (tumor necrosis factor, monocyte chemoattractant protein-1) and adhesion molecules (intercellular adhesion molecules and vascular cell adhesion molecules) in the aorta. Interestingly, we observed a significantly decreased expression of the endothelial nitric oxide synthase (eNOS) mRNA in the aortic vessel of the allergic group compared to the sham group.

Role of PRGF (Plasma Rich in Growth Factors) in Periodontal Regeneration

Platelet-rich-growth-factors (PRGF), a modification of fibrin glue made from autologous blood, is beingused to deliver growth factors in high concentration to sites requiring osseous grafting. Growth factorsreleased from the platelets include platelet-derived growth factor(PDGF), transforming growth factor-beta(TGF-ß), platelet-derived epidermal growth factor (PDGF), platelet-derived angiogenesis factor, insulin-likegrowth factor 1(IGF1), and platelet factor 4. These factors signal the local mesenchymal and epithelial cellsto migrate, divide, and increase collagen and matrix synthesis. Anitua et al in 2001 introduced the concept ofPRGF and since then it has been used for a variety of purposes in the field of dentistry and oral implantologyfor proper wound healing and regeneration of periodontal tissues. This review aims to give a brief ideaabout the various uses of PRGF and the possibility of utilization in the future taking into consideration manystudies that have been done. The main advantage of using PRGF is that it lacks the leukocyte content thuspreventing damage to the tissues during healing due to the acid hydrolases and proteases released from theneutrophils. It has been previously used for treating intrabony defects, to increase the implant-bone contactarea, for recession coverage etc. In other fields of medicine, it has been used to cure osteoarthritis, to treatchronic ulcers as well. Therefore, PRGF is a very effective blood concentrate with a high concentration ofgrowth factors and its use should be increased in the clinical practice.

Oral Diagnostic Methods for the Detection of Periodontal Disease.

Periodontitis is a common immune-inflammatory oral disease. Early detection plays an important role in its prevention and progression. Saliva is a reliable medium that mirrors periodontal health and is easily obtainable for identifying periodontal biomarkers in point-of-care diagnostics. The aim of this study is to evaluate the effectiveness of diagnostic salivary tests to determine periodontal status. Whole saliva (stimulated/unstimulated) from twenty healthy and twenty stage III grade B generalized periodontitis patients was tested for lactoferrin, alkaline phosphatase, calcium, density, osmolarity, pH, phosphate, buffer capacity, salivary flow rate and dynamic viscosity. A semi-quantitative urinary strip test was used to evaluate markers of inflammation in saliva (erythrocytes, leukocytes, urobilinogen, nitrite, glucose, bilirubin, and ketones), clinical periodontal parameters and pathogenic bacteria. Concentrations of lactoferrin, hemoglobin, and leukocytes were found to be significantly higher in the stimulated and unstimulated saliva in periodontitis patients compared to healthy patients, whereas alkaline phosphatase levels were higher in unstimulated saliva of periodontitis patients (p < 0.05). Periodontal biomarker analysis using test strips may be considered rapid and easy tool for distinguishing between periodontitis and healthy patients. The increase in lactoferrin, hemoglobin, and leucocytes—determined by strip tests—may provide a non-invasive method of periodontal diagnosis.

Hematological parameters and protein metabolism in the blood of pregnant rats under the effect of vanadium citrate

Dose-dependent changes in protein metabolism in the blood and hematological parameters of pregnant rats under the effect of vanadium citrate are presented in the article. The animals were divided into five groups: group I – non-pregnant females, II – pregnant females consuming pure water without additives, III, IV, V – females which during the mating and pregnancy period received the solution of vanadium citrate at concentrations of 0.03, 0.125 and 0.50 μg V/mL water. The research findings show that in pregnant animals of group II, the level of urea and alkaline phosphatase activity increased, meanwhile aspartate aminotransferase activity decreased, as compared to the non-pregnant females of group І. The levels of total protein and albumin decreased; however, the content of β-globulins increased in the pregnant animals of group II, as compared with that in group I. Also, in the rats of group II, there was a decrease in hemolysis time, total content of erythrocytes and hemoglobin, the content of old and mature erythrocytes, while the content of young erythrocytes increased, as compared to group I. The platelet content and thrombocrit in rats of group II increased in comparison with group I. The content of leukocytes and lymphocytes in pregnant animals of group II decreased, while the content of granulocytes increased, in contrast to non-pregnant rats. Under the effect of vanadium citrate at concentrations of 0.03–0.50 μg V/mL, there was a significant increase in the maximum number of prohemolized erythrocytes, the time of maximum hemolysis was delayed by 0.4–0.6 min, as compared with the pregnant rats of group II. This did not affect the time of total hemolysis in rats of groups III and V, as compared with the pregnant animals in group II. Under the effect of vanadium citrate, an increase in the content of young erythrocytes was observed, as compared with group II. The hemoglobin content decreased at the concentration of 0.125 μg V/mL, while at the concentration of 0.50 μg V/mL it increased, as compared to the pregnant animals of group II. Also, under the effect of vanadium citrate there was a decrease in the mean hemoglobin concentration in the erythrocyte. In pregnant animals fed with vanadium citrate solutions, the platelet content and thrombocrit, the relative width of platelet distribution by volume decreased, as compared with the pregnant rats of group II. The content of leukocytes, lymphocytes and granulocytes under the effect of vanadium citrate increased, as compared with the pregnant animals in group II. Under the effect of vanadium citrate at the concentration of 0.03 μg V/mL, the level of albumin, creatinine and aspartate aminotransferase activity increased in blood plasma in comparison with group II. Meanwhile, at the concentration of 0.125 μg V/mL, the relative content of γ-globulins and aspartate aminotransferase activity increased, alkaline phosphatase activity and urea level decreased in comparison with group II. However at the concentration of 0.50 μg V/mL, the relative α- and γ-globulins content and aspartate aminotransferase activity increased, at the same time, the relative β-globulins content and urea level decreased in comparison with group II. Therefore, vanadium citrate normalizes the indicators of protein metabolism during pregnancy, thus it can be considered as a potential dietary drug for the pregnant.

Platelet-Rich Plasma Combined with Hyaluronic Acid versus Leucocyte and Platelet-Rich Plasma in the Conservative Treatment of Knee Osteoarthritis. A Retrospective Study.

Background and objectives: Knee osteoarthritis (KO) is one of the most common joint diseases, determining knee pain and reduction of mobility, with a negative effect on quality of life. Intra-articular injections of different formulations of platelet-rich plasma (PRP) are an increasingly common non-surgical treatment for KO. Recently, in order to combine the anti-inflammatory effect of platelet rich plasma and the viscosupplementation effect of hyaluronic acid, a formulation of PRP combined with hyaluronic acid (PRP + HA) has been proposed. The purpose of this study is to retrospectively compare the effectiveness of plasma with high concentration of platelets and leukocytes (L-PRP) with PRP + HA in patients with mild to moderate (Kellgren–Lawrence scale II-III grade) KO. Materials and Methods: Among the 51 patients included, 28 have been treated with L-PRP, while 23 with PRP + HA. A retrospective evaluation at baseline (T0), after 3 months (T1) and 1 year (T2) has been performed. The outcome analyzed are the Knee Society Score (KSS), the Visuo Analogic Scale (VAS) (at T0, T1, and T2) and the Knee Injury and Osteoarthritis Outcome Score (KOOS) (T0 and T2). We evaluated change in mean scores within and between groups among different time points using repeated measures ANCOVA. Results: Although the two treatments have been both effective in reducing VAS, the group treated with PRP + HA showed a significantly lower KSS. Conclusions: Our results show that the use of both treatments may help to reduce pain in patients with mild to moderate KO. PRP + HA showed better results in improving knee mobility and function. These results should be considered only preliminary: Further research is needed to completely describe the clinical effectiveness of these formulations.

Prevalence Determination of m. Hominis and m. Genitalium in the Semen Samples in the Northeast of Iran Using Culture and Multiplex Polymerase Chain Reaction.

Infertility has recently become a growing social and economic world problem. Genital mycoplasmas, such as Mycoplasma hominis and M. genitalium, are most frequently associated with several adverse effects on men&amp;rsquo;s fertility. The present study aimed to determine the prevalence of M. hominis and M. genitalium in the semen samples in thenortheast of Iran. During thiscross-sectional study from February to May, 2018, 100 semen samples were collected from 100 infertile men in Mashhad, Khorasan Razavi province, northeast of Iran. The presence of M. hominis and M. genitalium was detected by cultivation, polymerase chain reaction (PCR), and Multiplex PCR assays. The colony of mycoplasma was confirmed by Diene&amp;rsquo;s stain; moreover, arginine hydrolysis, glucose, and urea utilization were evaluated. The following semen indices were analyzed according to World Health Organization guidelines for semen analysis: color, volume, appearance, liquefaction, viscosity, concentration, pH, leukocyte concentration, progressive motility, morphological normality, motile sperm concentration, functional sperm concentration, sperm motility index, and functional sperm. The gene of 16SrRNA (GPO1&amp;amp; MGSO primers) was used as the target gene of the Mycoplasma genus in PCR assay. Multiplex-PCR was performed with a specific primer for conserved regions in the 16SrRNA gene for M. hominis (RNAH1&amp;amp; RNAH2 primers) and the 140-kDa Adhesion Protein Gene for M. genitalium (MG1 &amp;amp; MG2 primers).According to the results,9 (9%) samples were PCR-positive for Mycoplasma spp , while there were 7 (7%) cases isolated by cultivation. M. hominis was detected in 8 (8%) samples by Multiplex PCR, while there was no evidence for M. genitalium. The mean age scores of all infertile and infected men were obtained at 31 and 30 years, respectively. The study could not show any statistical correlation between mycoplasma infection and abnormal semen parameters. The heterogeneity of mycoplasma prevalence in the reports can be ascribed to differences in geographic areas, the sensitivity of the identification method, condition of the group (fertile/infertile), sample size, and operator proficiency. Various results have been reported in numerous studies conducted on the relationship between mycoplasma infection and abnormal semen parameters.

Вплив комплексного лікування пневмоконіозу у поєднанні з хронічним обструктивним захворюванням легень на деякі показники інтоксикації у працівників гірничорудної та металургійної промисловості

Objective:We studied the efficiency of the comprehensive treatment of ore mining and iron and steel industry workers having the pneumoconiosis combined with chronic obstructive pulmonary disease in terms of intoxication indicators as an assessment of measures aimed at treatment and prevention of this occupational pulmonary pathology. Results: It was established that conducted treatment in the patients, ore mining and iron and steel industry workers with the use of bronchodilator, mucoregulator, anti-inflammatory agent of a complex vitamin medication, as well as sessions of hyperbaric oxygenation at 1.3 atm led to a decrease in the activity of inflammation processes with regard to the content in the peripheral blood of the total number of leukocytes, their stab and segmented subpopulations, and a decrease in most intoxication indices: the leukocytic index of intoxication, the granulocytic-agranulocytic index, the general index of intoxication, the sinistroposition index, the index of the ratio of leukocytes to erythrocyte sedimentation rate, which indicates a decrease in the systemic inflammation activity with the simultaneous suppression of intoxication phenomena. In comparison with the patients with other occupational lung pathology, the comprehensive treatment led to a more significant decrease in the content of segmented and stab leukocytes, as well as the main integral intoxication indices: the leukocytic index of intoxication, the granulocytic-agranulocytic index, and the general index. Thus, the comprehensive treatment of ore mining and iron and steel industry workers having the pneumoconiosis combined with the chronic obstructive pulmonary disease is an important link in the system of measures aimed at treatment and prevention ofthis occupational pulmonary pathology. Conclusions: In the ore mining and iron and steel industry workers having the pneumoconiosis combined with the chronic obstructive pulmonary disease,the comprehensive treatment with the use of bronchodilator, mucoregulator, nebulizer-administered anti-inflammatory agent, a complex vitamin B medication administered intramuscularly, as well as sessions of hyperbaric oxygenation led to an improvement in some inflammation indicators and intoxication indices which is a predictor of a positive course of the disease. The assessment of the results of the conducted comprehensive treatment of the workers indicates a significant positive dynamics of intoxication processes and makes it possible to regard this treatment as an important link in the system of measures aimed at treatment and preventionofthisoccupational pulmonary disease.

The influence of the Ag nanostructures dimensions on the pattern of electric field distribution in cases of blood cancer

Above normal concentrations of leukocyte can indicate blood cancer in humans. This study uses a finite difference time domain (FDTD) based on the Ag nanostructure array experiment from previous study. The influence of leukocyte and blood medium and also Ag nanostructures dimensions the on the pattern of electric field distributions in Ag nanostructure arrays was described on this study. The electric field distribution and transmittance of Ag nanostructure arrays using different medium was analysed. The electric field in Ag nanosquare with side size 50 nm irradiated with electromagnetic wave at a wavelength of 350 nm has value 1.78 × 10−5 V/m and has the highest electric field value compared to the other dimensions and wavelengths of electromagnetic wave. The maximum difference value of transmittance Ag nanosquare array between blood and leukocyte is 8.06 a.u. This value is resulted from Ag nanosquare with side size 50 nm irradiated with electromagnetic wave at a wavelength of 250 nm. These result provide an initial interpretation of optimum wavelength of electromagnetic wave and size of Ag nanosquare arrays for therapy and detection of blood cancer.

Electric Field Investigation for Ag Nanosquare Blood Cancer Sensor with Finite Difference Time Domain (FDTD) Simulation

Blood carrying more leukocytes can induce differences in electrical and magnetic properties. This work describes the effect of leukocyte concentration on the distribution of electric fields. The finite difference time domain approach of electric field distribution using normal blood and leukocyte has been analyzed. The electric field in the blood and leukocytes have the same peak at a wavelength of 400nm. Ag nanosquare with dimensions of 350×350nm2 in blood and leukocyte medium has a different maximum electric field of 7.35 × 10−7V/m with a peak wavelength difference of 0.22nm. The results of this work are beneficial to expected and provide an interpretation of blood cancer detection using an Ag nanosquare arrays sensor.

Hematological indicators, micro-elemental composition of blood and intensity of growth of calves depending on the feeding of the mother in the dry period

Depending on the characteristics of mothers feeding, the results of assessing the morphological composition of blood and some hematological parameters, trace element composition of blood and the dynamics of the average daily gain in live weight of calves are considered. In the Atninsky municipal district of the Republic of Tatarstan in the agricultural production complex “Plemzavod named after Lenin ”conducted a research and production experiment on Holstein cows (30 heads), as well as on calves that were received from them. All laboratory studies were carried out in the department of agrobiological research of the Tatar Scientific Research Institute of Agricwlture, FRC KazSC RAS. It was revealed that the content of leukocytes on the 60th day in calves of group II was significantly (p &lt;0.05) lower than in control animals by 41.31%. On the 90th day, the hemoglobin concentration in individuals of the control and III groups significantly increased by 27.05% (p &lt;0.001) and 29.69% (p &lt;0.01), respectively. On the 60th day, the concentration of cobalt in individuals of group III was significantly (p &lt;0.01) higher than in animals of group II by 7.94%. A significant increase in zinc concentration on the 90th day was found in individuals of the experimental groups - by 30.04 (p &lt;0.01) and 19.56% (p &lt;0.001), respectively, and manganese - for calves in the control %, p &lt;0.01). Evaluation of the average daily gain showed the presence of a trend of its superiority in individuals of group III over the rest by 17.96 and 7.44% compared with animals of groups I and II, respectively.