Immunological Status Research Articles

Avaliação da segurança pré-clínica de um iogurte probiótico feito com polpa de tumbo (Passiflora tripartita Kunth)

Abstract A probiotic yogurt made from the pulp of the tumbo fruit (Passiflora tripartita Kunth) possesses antioxidant capacity, physicochemical and microbiological quality and stability; however, it needs to be safe for later studies of clinical functionality. The present study would be considered as a precursor to the preclinical safety evaluation of a functional food by in vivo toxicological testing. The study aimed to evaluate the preclinical safety of yogurt made from the pulp of the tumbo fruit (P. tripartita). The toxicological studies proposed were based on the OECD 423:2001 standard on Acute Oral Toxicity, performing the peroral administration of the probiotic yogurt at a dose of 2000 mg/kg one-time in a group of randomized male rats, for its evaluation during 14 days compared to a control group; and on the OECD 407: 2008 on Repeated Dose Oral Toxicity, a daily dose of 2000 mg/kg of the yogurt was administered for 28 days in male rats, considering the evaluation of their clinical, hematological and biochemical parameters, to determine any possible toxic effect produced by the probiotic formulation. The results showed that in both toxicological studies, no adverse alterations were detected in their clinical signs, relative organ weights and hematological and biochemical profiles. In addition, a possible improvement in the immunological status, liver function and hematological profile was evidenced as a finding. In conclusion, it was possible to establish knowledge on the preclinical safety of the formulation of a probiotic yogurt made with tumbo fruit pulp, obtaining a NOAEL (No Observed Adverse Effect Level) value higher than 2000 mg/kg body weight in male rats.

Applications of Proteomics in Probiotics Having Anticancer and Chemopreventive Properties.

Proteomics has grown in importance in molecular sciences because it gives vital information on protein identification, expression levels, and alteration. Cancer is one of the world's major causes of death and is the major focus of much research. Cancer risk is determined by hereditary variables as well as the body's immunological condition. Probiotics have increasing medical importance due to their therapeutic influence on the human body in the prevention and treatment of numerous chronic illnesses, including cancer, with no adverse effects. Several anticancer, anti-inflammatory, and chemopreventive probiotics are studied using different proteomic approaches like two-dimensional gel electrophoresis, liquid chromatography-mass spectrometry, and matrix-assisted laser desorption/ionization mass spectrometry. To gain relevant information about probiotic characteristics, data from the proteomic analysis are evaluated and processed using bioinformatics pipelines. Proteomic studies showed the significance of different proteomic approaches in characterization, comparing strains, and determination of oxidative stress of different probiotics. Moreover, proteomic approaches identified different proteins that are involved in glucose metabolism and the formation of cell walls or cell membranes, and the differences in the expression of critical enzymes in the HIF-1 signaling pathway, starch, and sucrose metabolism, and other critical metabolic pathways.

Immunology Status of Patients During Kidney Transplant.

The immunology status of a patient has a crucial role in kidney transplant. We investigated the effectiveness of a desensitization protocol, guided by the immunology status of patients, for kidney transplant candidates. Antibody screening for human leukocyte antigens was conducted with the Luminex single-antigen microsphere bead assay method for 34 patients from June 2021 to June 2022. Donor human leukocyte antigen genotypes at 8 loci (A*, B*, С*, DRB1*, DQA1*, DQB1*, DPA1*, and DPB1*) were determined, to correlate the specificities of recipient human leukocyte antigen antibodies with donor antigens and identify unacceptable donor antigen combinations. Specialized immunology studies measured panel reactive antibody levels and human leukocyte antigen class I and class II antibodies. A crossmatch compatibility test using complementdependent cytotoxicity was conducted. Of the 34 patients, 10 completed all 3 stages of the desensitization therapy. Most patients experienced decreased sensitization to human leukocyte antigen class I and class II antibodies. Two patients achieved complete clearance of A1 and DQ5 antibodies, respectively, whereas 1 patient exhibited an increase in donor-specific antibody mean fluorescence intensity. Prior to desensitization therapy, the crossmatch compatibility test yielded positive results with T and B lymphocytes. After completing the therapy, the crossmatch test showed negative results in 4 cases with T lymphocytes and positive results with B lymphocytes. Plasmapheresis sessions effectively reduced circulating antibodies. However, the combination of rituximab and plasmapheresis alone did not achieve a negative crossmatch test required for kidney transplant. It is crucial to assess the reduction of donor-specific antibody quantity, considering both the percentage and the mean fluorescence intensity. To avoid false-positive results in crossmatch analysis, drug half-life must be considered. Laboratories should have various crossmatch techniques, such as flow cytometry and single-antigen microsphere bead assay technology, available for research and urgent cases that require crossmatch analysis.

IMMUNOLOGICAL STATUS OF THE CALVES BORN FROM THE COWS WITH CHRONIC SYSTEMIC INFLAMMATION SYNDROME

This article presents the results of a study of the effect of chronic systemic inflammation syndrome in pregnant cows on the immunological status of newborn calves. It has been established that the calves obtained from the cows with this syndrome have intense colostral immunity against the background of congenital immunodeficiency, which is characterized by a decrease in the number of T- and B-lymphocytes, the activity of phagocytes, lysozyme and the complement system. The identified abnormalities in this group of animals increase the risk of early neonatal infection and comorbid pathology.

Estimation of Serum Adenosine Deaminase Levels as a Marker for Risk Assessment and Immunomodulation in Patients with Diabetic Foot

Introduction: Diabetic foot ulcers are critical complications of uncontrolled diabetes, with peripheral neuropathy, peripheral arterial disease, and immune suppression as primary contributing factors. Adenosine Deaminase (ADA), an enzyme, has been identified as a promising marker for cell-mediated immunity. Its estimation may serve as a predictive marker for immunomodulation, which, in turn, leads to complications among individuals with diabetes. Aim: To estimate serum ADA levels in diabetic patients without diabetic foot and diabetic patients with diabetic foot. Additionally, the study aimed to investigate the association of ADA serum levels with glucose, Glycated Haemoglobin (HbA1c), and the severity of wounds. Materials and Methods: This cross-sectional study was conducted in the central laboratory Department of Biochemistry at Krishna Rajendra Hospital (KR Hospital), Mysuru Medical College and Research Institute, Mysuru, India, from August to September 2021. The study included diabetic foot cases (n=45) and Type 2 diabetes patients on regular follow-up in the Department of Medicine without diabetic foot and any other complications (n=45). Venous blood samples were analysed for ADA, glucose, HbA1c, and complete blood count. The data were statistically analysed using the Mann-Whitney U test, Kruskal-Wallis test, and Spearman rank correlation test. Results: The present study observed a higher incidence of diabetic foot among males. It showed a statistically significant increase in serum ADA, HbA1C, and neutrophil count in patients with diabetic foot compared to patients with diabetes without diabetic foot ulcers, with mean Standard Deviation (SD) of 71.79±25.11, 11.53±3.11%, and 75.91±9.77%, respectively. Serum ADA exhibited a positive correlation with HbA1C and different grades of ulcers. Conclusion: The present study demonstrated a significantly increased serum ADA in diabetic ulcers and a positive correlation with different grades of ulcers. This finding contributes to a better understanding of the disease's pathogenesis at different stages. Furthermore, the positive correlation between ADA and HbA1C levels may play an important role in predicting the glycaemic and immunological status of these patients

Specific Immunological Investigation in the Management of Patients with Spine and Joint Pathology

Abstract Objective: The immunological investigation is used for the improvement of the quality of the treatment of various diseases. The aim of the study was to estimate the significance of specific immunological methods in the management of inflammatory diseases. Materials and Methods: Determination of the level of autoimmune lymphocytotoxic and granulocytotoxic antibodies (ALA and AGA) and reaction of inhibition of leukocyte migration were used for investigation of persons with orthopedic, metabolic, and lung pathology. Results: The study showed increased serum levels of ALA and AGA, decreased nonspecific LIF production and increased level of LIF in the presence of own serum, increased leukocyte migration to synovial membrane, bone, cartilage, Candida lusitaniae, Staphylococcus epidermidis, Staphylococcus aureus in persons with periprosthetic infection.. Decreased leukocyte migration to the antigens of S. aureus, Streptococcus pyogenes, Escherichia coli, and Pseudomonas aeruginosa and connective tissue antigens was determined in persons with inflammatory diseases of bones. Increased ALA, reduced LIF, and leukocyte migration enhancement to synovial membrane were revealed in impaired glucose metabolism. The persons with anemia were characterized by increased ALA, sensitization to bone and cartilage, Staphylococcus, and humoral sensitization to E. coli. Increased serum levels of ALA, AGA, decreased level of nonspecific LIF production and sensitization to connective tissue, Streptococcus and E. coli were determined in persons with impaired cholesterol level. Chronic obstructive pulmonary disease patients were characterized by sensitivity to S. aureus, P. aeruginosa, and humoral sensitization to the lung tissue. Conclusions: Inflammatory diseases are characterized by specific signs of immunological status and require definition of individual tactics of the treatment.

The Relationship of Staphylococcus aureus Virulancity with Serum Cytokine Levels in Polycystic Ovary Syndrome and Polycystic Ovary Disease

The current study was done to isolation and indentification of the Staphlococcus aureus isolates associated with polycystic ovarian syndrome patients and determine the immunological status for these patients. Inflammatory markers have been linked to polycystic ovary syndrome (PCOS). Because ovulation is a quasi-inflammatory process, endothelial adipose tissue can stimulate an inflammatory response and maintain inflammation in adipocytes. By influencing the release of inflammatory cytokines from this downregulated inflammation, polycystic ovary syndrome can arise. The study included 105 clinical specimens, that include age (20-45) years which were collected from November 2022 to June 2023. The specimens included blood specimens and vaginal swabs. They visit Imam Al-Sadiq Hospital and Babylon Teaching Hospital for Maternity and Children in Babylon Governorate. The results of vaginal swabs culture, biochemical tests and vitic2 for isolated bacteria from patients were revealed that Gram-positive bacteria isolates were dominant, amounting to 51 (54.83%), while the percentage of Gram-negative bacteria was 37 (39.78%), while fungi percentage was 5 (5.37%). The results showed that Staphylococcus aureus is the most common bacteria among Gram-positive bacteria, as it constituted 38 (40.86%), followed by Lactobacillus spp. As it accounted for 11 (11.82%) of Staphylococcus epidermidis by 2 (2.15%). The Gram-negative isolates included Escherichiae coli, Klebsiella pneumoniae, and Pseudomonase aerogenosa 23 (24.73%), 9(9.67%) and 5 (5.37%), respectively also the result demonstrates that IL-10, IL-13 level significantly elevation in PCOS, PCOD patients group.

Indicators of production use and yaks immunity of the Central Ciscaucasia

The purpose of the research is to study the main production indicators and immunological status of the breeding stock of yaks of the Sarlyk breed living in the Central Ciscaucasia. The object of the investigation was the animals of LLC «Mountain-Alpine», LLC «Garant A», LLC «Selskie Dary», and LLC «Business Group», located in Chereksky district of the Kabardino-Balkarian Republic. The breeding population of yaks in the region is more than 7,500 heads, of which 4,123 are yak-cows. The share of breeding sires is accounted of 217 heads, which is 2.9% more than the total yak population. Milk production of yak-cows is fluctuated on approximately the same level on farms and amount to 179-184 kg. For every 100 yak-cows in analyzed organizations were obtained at least 88 calves, and more than 98% of young animals were preserved for weaning. Species from all farms were distinguished by the optimal duration of the calving intervals, which made it possible to produce one calf per year from them within 12-13 months. More preferable values for the period between calving were observed among representatives from LLC Garant A (358 days) for all other things being equal. It was established that cows were eliminated from the herds at the age of 3.2-3.8 calving, and they were used longer by 0.4-0.6 calving in LLC «Selskie Dary» and LLC «Garant A» regardless of organizational affiliation. The most common reasons for attrition were injuries and diseases of the limbs. Yak -cows of all breeding reproducers were characterized by high humoral and cellular immunity.

Leverage of Matricaria chamomilla L. Oil Supplementation over Ochratoxin A in Growing Quails

Ochratoxin A (OTA) is one of the mycotoxins in the agriculture and livestock sectors. The poultry sector suffered from significant economic losses due to the adverse impacts of OTA on the growth rate, feed conversion ratio, and livability. Thus, the present investigation aimed to determine the impact of chamomile essential oil supplementation against OTA toxicity in growing quails. 360 one‐week‐old growing quails were distributed into six groups (n = 60) with four replicates of 15 birds. The groups were G1 (control negative), G2 (OTA 1 mg/kg diet, control positive), G3 (chamomile oil 0.5 g/kg diet), G4 (chamomile oil 1 g/kg diet), G5 (OTA 1 mg/kg diet + chamomile oil 0.5 g/kg diet), and G6 (OTA 1 mg/kg diet + chamomile oil 1 g/kg diet). Adding OTA significantly (P < 0.05) reduced live body weight and weight gain at 5 weeks. Feed intake at 5 weeks was nonsignificantly reduced in G3 and G4 compared to G1. G4 showed a significant (P < 0.05) increase in weight gain and the lowest feed conversion ratio. The G2 showed the lowest superoxide dismutase (SOD), total antioxidant capacity (TAC), glutathione transferase (GST) activity, and the highest levels of malondialdehyde (MDA). Moreover, they showed a significant improvement in liver enzymes and kidney function tests and a significant (P < 0.05) reduction in the levels of total cholesterol and triglycerides. Chamomile supplementation alone or with OTA significantly (P < 0.05) increased immunoglobulin M, G, A, and complement 3 than OTA alone. Chamomile oil with an OTA diet or alone reduced the negative effects of OTA and improved the performance, antioxidant status, lipid profile, and immunological state of growing Japanese quails.

Potential Gastric Cancer Immunotherapy: Stimulating the Immune System with Helicobacter pylori pIRES2-DsRed-Express-ureF DNA Vaccines.

Most gastric cancers (GC) are thought to be caused by Helicobacter pylori (H. pylori) infections. However, there is mounting evidence that GC patients with positive H. pylori status have improved prognoses. The H. pylori-induced cellular immune reaction may inhibit cancer. In this study, BALB/c mice were immunized using recombinant plasmids that encode the ureF gene of H. pylori. Purified functional splenic CD3+ T lymphocytes are used to study the anticancer effects in vitro and in vivo. The immunological state of GC patients with ongoing H. pylori infection is mimicked by the H. pylori DNA vaccines, which cause a change in the reaction from Th1 to Th2. Human GC cells grow more slowly when stimulated CD3+ T lymphocytes are used as adoptive infusions because they reduce GC xenograft development in vivo. The more excellent ratios of infiltrating CD8+/CD4+ T cells, the decreased invasion of regulatory FOXP3+ Treg lymphocytes, and the increased apoptosis brought on by Caspase9/Caspase-3 overexpression and Survivin downregulation may all contribute to the consequences. Our findings suggest that in people with advanced GC, H. pylori pIRES2-DsRed-Express-ureF DNA vaccines may have immunotherapeutic utility.

Positive anti-nuclear antibody in patients with polyclonal hypergammaglobulinemia suggests the presence of multiple distinct comorbidities.

Objective Polyclonal hypergammaglobulinemia (PHGG) is a classic problem in internal medicine; however, its conditions and diagnostic procedures have not been well studied. We therefore conducted a retrospective study to characterize the PHGG disease spectrum. Methods We included all patients who underwent serum protein electrophoresis (SPEP) at a hematology tertiary referral center during a five-year period. For these patients, globulin clonality was determined and clinical data were extracted from the records. Results Out of 209 consecutive cases of hypergammaglobulinemia demonstrated by SPEP, 79 cases of PHGG were identified. A total of 46 diagnoses were associated with PHGG. Patients with PHGG were younger (median 71.0 years old (yo) vs. 65 years; P = 0.002) and had lower gamma-globulin levels (median, 26.5 g/L vs 24.8 g/L; P = 0.03) than those with monoclonal hypergammaglobulinemia. Interestingly, out of 79 patients with PHGG, 15 were associated with more than one diagnosis, and a female predominance was observed in this specific subset of patients. PHGG cases with multiple diseases showed higher gamma-globulin levels than those with monoclonal hypergammaglobulinemia, in a disease-dependent manner. Additionally, positive antinuclear antibodies (ANAs) had a discriminative ability with an area under the curve of 0.81 (95% confidence interval, 0.65-0.96) and were highly sensitive to multimorbidity in PHGG (sensitivity, 92.3%). Conclusion These results establish a previously underappreciated unique immunological state of multimorbidity in PHGG and indicate that the gamma-globulin levels and ANAs could serve as markers for the clinical assessment of comorbidities in PHGG.

METHODOLOGY FOR ASSESSING THE PATHOLOGICAL IMPACT OF DISEASES AND FOREST PESTS ON THE SANITARY CONDITION OF FORESTS IN THE CONDITIONS OF FORESTRY BLANCHES OF THE CENTRAL INTERREGIONAL FORESTRY AND HUNTING MENEGMENT AND NATURE PROTECTION RESEARCH DEPARTMENT OF THE POLISSKY NATURE RESERVE

METHODOLOGY FOR ASSESSING THE PATHOLOGICAL IMPACT OF DISEASES AND FOREST PESTS ON THE SANITARY CONDITION OF FORESTS IN THE CONDITIONS OF FORESTRY BLANCHES OF THE CENTRAL INTERREGIONAL FORESTRY AND HUNTING MENEGMENT AND NATURE PROTECTION RESEARCH DEPARTMENT OF THE POLISSKY NATURE RESERVE

Effect of garlic flour (Allium sativum) addition on immunity and histopathology of Broilers with Newcastle disease virus

Broiler chickens are reared for a short period (35 days) of time for their flesh. When producing broilers, several issues develop, including low productivity, immunological state, feed prices, and antibiotic restrictions. Antibiotics ought to be avoided as growth promoters to avoid antimicrobial resistance (AMR). This policy stimulates broiler livestock productivity by utilizing plant elements known as photobiotic. The use of plant materials is intended to lower the risk of antibiotic resistance. Antibiotics that fail to meet regulations might cause residue buildup. Aside from it, there are several infectious disorders, such as Newcastle disease (ND). ND is a disease that frequently affects poultry, resulting in decreased production value, significant morbidity, and high mortality. ND can be prevented with vaccination and treatment to boost immunity. One type of vaccine utilizes immunomodulatory supplements, such as garlic (Allium sativum), which has anti-inflammatory and immune-boosting properties. During the ND infection, garlic flour supplementation resulted in alterations in pathological lesions in the hearts of chicken embryos. These modifications include a reduction in the severity of the infection, which is characterized by edema, congestion, necrosis, and neutrophil infiltration. After ND infection, 1% garlic flour can improve livestock immune health, as evidenced by an increase in protective antibody titers, a drop in the number of leukocytes, and a decrease in the number of lymphocytes. In the 1% garlic flour therapy group, histopathology of the spleen organ revealed differences in the severity of pathological lesions caused by ND infection.

Оценка влияния пробиотического препарата на энтеросорбенте «Флорин форте» на физиолого-иммунологическое состояние бестера

Assessment of the physiological and immunological status of fish is an urgent problem of modern aquaculture. One of the methods of such assessment is based on hematological and biochemical studies. Blood is the most sensitive and informative indicator of changes occurring in the body of fish. It reacts quickly and acutely to the effects of various adverse environmental factors and can serve as one of the early indicators of a violation of the functional state of fish. The study 
 of the effect of a probiotic drug on the enterosorbent “Florin forte” on hematological and biochemical blood parameters, in particular, on the level of hemoglobin, total serum protein, triglycerides, cholesterol, glucose, as well as on the distribution of shaped elements of peripheral blood of Bester (Huso huso × Acipenser ruthenus) was carried out on the basis of the Innovation Center “Bioaquapark – scientific andtechnical center of aquaculture” ASTU for 30 days. As a result of the conducted studies, it was noted that the use of the sorbed form of the probiotic drug has a positive effect on the physiological and immunological condition of the farmed fish. Thus, the blood of Bester's two-year-olds grown on compound feeds with the addition of probiotic enterosorbent was characterized by an increase in hemoglobin levels to 64.9 g/l, total whey protein to 23.6 g/l, as well as a decrease in cholesterol and glucose concentrations to 2.6 and 0.55 mmol/l, respectively. In the leukocyte formula of the studied fish, shifts in the quantitative ratios of leukocytes were found, confirming the body's reaction to the introduction of a probiotic drug on enterosorbent into the diet and considered as an adaptive mechanism that increases the protective function of the blood.

Defining Parameters That Modulate Susceptibility and Protection to Respiratory Murine Coronavirus MHV1 Infection.

Patients infected with SARS-CoV-2 experience variable disease susceptibility, and patients with comorbidities such as sepsis are often hospitalized for COVID-19 complications. However, the extent to which initial infectious inoculum dose determines disease outcomes and whether this can be used for immunological priming in a genetically susceptible host has not been completely defined. We used an established SARS-like murine model in which responses to primary and/or secondary challenges with murine hepatitis virus type 1 (MHV-1) were analyzed. We compared the response to infection in genetically susceptible C3H/HeJ mice, genetically resistant C57BL/6J mice, and genetically diverse, variably susceptible outbred Swiss Webster mice. Although defined as genetically susceptible to MHV-1, C3H/HeJ mice displayed decreasing dose-dependent pathological changes in disease severity and lung infiltrate/edema, as well as lymphopenia. Importantly, an asymptomatic dose (500 PFU) was identified that yielded no measurable morbidity/mortality postinfection in C3H/HeJ mice. Polymicrobial sepsis induced via cecal ligation and puncture converted asymptomatic infections in C3H/HeJ and C57BL/6J mice to more pronounced disease, modeling the impact of sepsis as a comorbidity to β-coronavirus infection. We then used low-dose infection as an immunological priming event in C3H/HeJ mice, which provided neutralizing Ab-dependent, but not circulating CD4/CD8 T cell-dependent, protection against a high-dose MHV-1 early rechallenge. Together, these data define how infection dose, immunological status, and comorbidities modulate outcomes of primary and secondary β-coronavirus infections in hosts with variable susceptibility.

A novel prognostic model for predicting patient survival and immunotherapy responsiveness in hepatocellular carcinoma: insights into the involvement of T-cell proliferation.

The cancer-associated biological mechanisms and the implementation of immunotherapy are heavily impacted by the activities of T cells, consequently influencing the effectiveness of therapeutic interventions. Nevertheless, the mechanistic actions of T-cell proliferation in response to immunotherapy and the overall prognosis of individuals diagnosed with hepatocellular carcinoma (HCC) remains insufficiently understood. The present work seeks to present a comprehensive analysis immune landscape in the context of HCC. To achieve this objective, both clinical data and RNA sequencing data were acquired from authoritative databases such as The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). Through the utilization of consensus clustering techniques, distinct molecular subtypes associated with T-cell proliferation were delineated. Following this, seven genes of prognostic significance were identified via a combination of Cox and Lasso regression analyses. By integrating these genes into a prognostic signature, the predictive capability of the model was verified through an examination of internal and external datasets. Moreover, immunohistochemistry and qRT-PCR tests have verified the reliability of prognostic markers. Notably, the high-risk group exhibited elevated expression of immune checkpoint genes as well as higher benefit in terms of drug sensitivity testing, as determined by the Chi-square test (P < 0.001). The risk score derived from the prognostic signature depicted considerable efficacy in predicting the survival outcomes of HCC cases. Overall, prognostic markers may become valuable predictive tool for individuals diagnosed with HCC, allowing for the prediction of their prognosis as well as the assessment of their immunological condition and response to immunotherapy.

Silica-Calcite Sedimentary Rock (Opoka) Enhances the Immunological Status and Improves the Growth Rate in Broilers Exposed to Ochratoxin A in Feed.

Mycotoxins, such as Ochratoxin A (OTA), originating from fungi like Aspergillus and Penicillium, represent serious health hazards to poultry. The use of mycotoxin-adsorbing feed additives can reduce these risks. Opoka, a porous transitional rock, shows promise as one of these additives. This study is the first to examine the effect of Opoka administered with OTA on zootechnical parameters and the immune response of chickens. A 42-day investigation examined the impact of 1% of Opoka supplementation in feed on OTA-challenged broiler chickens. Seventy-two chickens were allocated into three groups of twenty-four individuals each: a control group, an OTA-exposed (2 mg/kg feed) group, and an OTA (2 mg/kg feed) plus 1% of Opoka group. Growth and blood parameters were monitored at predetermined intervals, and comprehensive biochemical, hematological, and cytometric analyses were conducted. The study showed that OTA exposure had a negative impact on chicken weight gain. However, adding Opoka to the diet improved weight gain, indicating its potential as a protective agent. Chickens fed with Opoka also had an increased white blood cell count, which suggests an improved immune response and elevated glucose and cholesterol concentrations. These findings indicate that Opoka may be useful in mitigating health complications caused by OTA exposure in broilers.

Immunological status of sows during the reproductive cycle and correction of its condition with an antigen-directed biostimulator

Relevance. Reproductive insufficiency of sows associated with circovirus infection is widespread in pig breeding enterprises. Therefore, an increase in the effectiveness of immunity formed in animals during the post-vaccination period is of crucial importance in the formation of the reproductive potential of sows.Methods. The work was performed on sows, which at the end of the suckling period during weaning of piglets (on the 21st day after delivery) were vaccinated against CVS-2 with the “Ingelvak Circoflex” vaccine (Germany). In the experimental group, vaccination was combined with a two-time administration of a targeted immunobiostimulator “Transfer Factor” at a dose of 5 ml per head with an interval of 7 days (the second administration of “Transfer Factor” was carried out during vaccination). The effectiveness of post-vaccination immunity was evaluated based on the results of immunological, zootechnical and statistical studies.Results. It was found that the formation of post-vaccination immunity in control group sows occurs under conditions of an increase in the concentration of immunoglobulins in the blood (∑G + M + A) by 1.25–1.59 times due to IgG and IdM, a decrease in the absolute number of T- and B-lymphocytes by 11.84–15.51% and 14.12–17.51% while maintaining their percentage share in the total pool of lymphocytes, a decrease in the level of T-helpers by 34.27–36.47 against the background of an increase in cytotoxic lymphocytes and killers by 4.47–66.67%, which determines the yield of piglets per farrow in the amount of 12.5 heads and stillbirth at the level of 9.67%. The combination of vaccination with the introduction of a specific targeted immunobiostimulator in sows of the experimental group determines in the post–vaccination period; an increase in the concentration of immunoglobulins in the blood by 24.93–71.56% due to IgG; a decrease in the number of T-lymphocytes by 19.50–23.76% against the background of an increase in B-lymphocytes by 20.00–21.25%; preservation of the absolute number of T-helpers and reducing the number of cytotoxic lymphocytes and killers by 2.14–3.00 times, contributing to a 3.24% reduction in stillbirth and an increase in the yield of piglets per farrowing to 13.0 heads.

Multiple intrathoracic thrombosis detected on ct scan in patient with antiphospholipid antibody syndrome: case report

Antiphospholipid antibody syndrome (APS) is the clinical correlation between antiphospholipid antibodies and hypercoagulability syndrome. The prevalence of APS in the general population is undetermined. APS disease carries a notable risk of vascular thrombosis. CT scan is the preferred imaging method for assessing thrombosis, although the timing of image acquisition should be considered. The case report detailed the discovery of many intrathoracic thromboses on a CT scan of a patient diagnosed with the uncommon condition APS. Case study: A 34-year-old woman was hospitalized due to dyspnea, cough, and a 3 kg weight loss over a three-month period. She has a background in Deep Vein Thrombosis (DVT). The test results showed abnormalities in protein C, protein S, and high D-dimer levels. The CT scan revealed numerous intrathoracic thrombi. Antiphospholipid syndrome (APS) is an immunological condition that elevates the likelihood of blood clot formation, resulting in thrombosis inside the arteries and veins. The approximate occurrence rate of APS is five occurrences per 100,000 individuals annually. Antiphospholipid syndrome (APS) leads to the formation of blood clots in the legs, a condition referred to as deep vein thrombosis (DVT). This patient had a history of deep vein thrombosis (DVT) and many blood clots within the chest cavity. A CT scan revealed persistent blood clots in the main pulmonary artery and the right and left pulmonary arteries. Antiphospholipid syndrome (APS) can lead to the formation of blood clots in both arteries and veins. CT scan is the preferred method for evaluating thrombosis, and numerous phases are required to examine all blood arteries.

Influenza virus immune imprinting dictates the clinical outcomes in ferrets challenged with highly pathogenic avian influenza virus H5N1.

Zoonotic transmission of H5N1 highly pathogenic avian influenza virus (HPAIV) into the human population is an increasing global threat. The recent 2022 HPAIV outbreak significantly highlighted this possibility, increasing concern in the general population. The clinical outcomes of H5N1 influenza virus exposure can be determined by an individual's primary influenza virus infection (imprinting) or vaccination status. Immunological imprinting with Group 1 - (H1N1, H2N2, and H2N3) increases survival rates following H5N1 viral infection compared to Group 2 - (H3N2) imprinted individuals. Vaccination against H5N1 influenza viruses can offer protection to at-risk populations; however, stockpiled inactivated H5N1 influenza vaccines are not readily available to the public. We hypothesize that the immunological response to vaccination and subsequent clinical outcome following H5N1 influenza virus infection is correlated with the immunological imprinting status of an individual. To test this hypothesis, our lab established a ferret pre-immune model of disease. Naïve ferrets were intranasally inoculated with seasonal influenza viruses and allowed to recover for 84 days prior to H5N1 virus infection. Ferrets imprinted following H1N1 and H2N3 virus infections were completely protected against lethal H5N1 influenza virus challenge (100% survival), with few to no clinical symptoms. In comparison, H3N2 influenza virus-imprinted ferrets had severe clinical symptoms, delayed disease progression, and a sublethal phenotype (40% mortality). Consecutive infections with H1N1 influenza viruses followed by an H3N2 influenza virus infection did not abrogate the immune protection induced by the original H1N1 influenza virus infection. In addition, ferrets consecutively infected with H1N1 and H2N3 viruses had no clinical symptoms or weight loss. H3N2 pre-immune ferrets were vaccinated with a broadly reactive H5 HA-based or H1 NA-based vaccine (Hu-CO 2). These ferrets were protected against H5N1 influenza virus challenge, whereas ferrets vaccinated with the H1N1 wild-type CA/09 rHA vaccine had similar phenotypes as non-vaccinated H3N2-imprinted ferrets with 40% survival. Overall, Group 2 imprinted ferrets, which were vaccinated with heterologous Group 1 HA vaccines, had redirected immune responses to Group 1 influenza viral antigens and rescued a sublethal phenotype to complete protection.