Band 49, Heft 3

Objectives In this study, the aim is to provide a more detailed understanding of vitamin D metabolism by evaluating the correlation between 1,25-dihydroxyvitamin D (1,25(OH)2D) and 25-hydroxyvitamin D (25(OH)D) according to the variations in measurement methods and clinical conditions. Methods We searched PubMed, Embase, and Web of Science for studies reporting correlation results between 1,25(OH)2D and 25(OH)D. We performed a meta-analysis based on the correlation results of 1,25(OH)2D and 25(OH)D in different clinical conditions. We included a total of 63 studies and our laboratory’s results in the meta-analysis. The studies were categorized into high-quality methods group (HQMG), medium-quality methods group (MQMG), and low-quality methods group (LQMG) based on the 25(OH)D and 1,25(OH)2D measurement. Results In the healthy, renal disease, and other disease groups, the highest correlation values were observed in the studies categorized as HQMG, with values of 0.35 (95 % CI; 0.23–0.48), 0.36 (95 % CI; 0.26–0.42), and 0.36 (95 % CI; 0.22–0.48), respectively. Significant statistical heterogeneity was observed in the healthy, renal disease, and other disease groups, with I2 values of 92.4 , 82.7, and 90.7 %, respectively (p<0.001). Both Funnel plots and the results of Egger’s and Begg’s tests indicated no statistically significant bias across all studies. Conclusions A significantly low correlation was found between 25(OH)D and 1,25(OH)2D. However, higher correlations were found in the studies categorized as HQMG. Various factors, including methodological inadequacies and disparities, might contribute to this. In the future, with more accurate and reproducible measurements of 1,25(OH)2D, a clearer understanding of vitamin D metabolism will be achieved.

Objectives Kaposi’s sarcoma (KS) develops from the lining cells of blood or lymphatic vessels and may appear as red, purple, brown, or black lesions. E-cadherin, CDH1 , is a cell adhesion molecule located on the surface of epithelial cells. CDH1 gene expression is downregulated in several cancers and is considered a tumor suppressor gene involved in epithelial-mesenchymal transition in carcinomas. Loss of CDH1 gene expression is observed in many carcinomas, mainly diffuse gastric carcinomas and lobular breast carcinomas, as well as skin tumors. This study investigates the CDH1 germline mutations in HIV-negative (Human Immunodeficiency) Virus KS patients in the Turkish population. Methods The study examined 25 peripheral blood mononuclear cells from KS patients using the Sanger sequencing technique. Results Sixteen exons of the CDH1 gene were sequenced, and a pathogenic functional germline mutation, HET c.2245C > T, p.(Arg749Trp) rs776975632, NM _004360.5, was identified in a patient with a family history of gastric and breast cancer with a high number of lesions compared to other KS patients. Discussion: KS patients with a family history of cancer could be screened for CDH1 gene and cancer-related-gen variants in the future. Conclusions KS is a rare malignancy, and genetic analysis will benefit KS patients. Further studies are needed to describe better the variations detected in a large number of KS patients in this study.

Objectives Clinical biochemistry laboratories (CBL) are the most frequently utilized laboratory group in healthcare, and their significance in patient care is indisputable. This study investigated the frequency and pattern of test utilization rate in CBL at two large hospitals’ outpatient and inpatient clinics. Methods A total of 43,732,428 CBL tests, including clinical chemistry, immunoassay, coagulation, specific proteins, CBC, and urinalysis, were conducted for 12,182,382 patients across two large hospitals in different settings between 2018 and 2022. These tests were analyzed alongside patient admissions data, with a focus on the distribution across various clinics. Results A total of 94 % and 93 % of those admitted to Hospitals 1 and 2 were outpatients. They had applied to CBL laboratories for 27.1–30.3 % of outpatients and 81.2–88.7 % of inpatients for at least one test. When analyzing the rates at which laboratory tests were requested for outpatients, it was found that emergency departments had the highest test-requesting rates, ranging from 19.99 to 45.36 %. This was followed by internal medicine clinics, with rates ranging from 13.77 to 14.8 %, and inpatient intensive care units, with rates between 24.31 and 30.14 %. Outpatients had 10–11 test requests for each patient and 16–31 for inpatients. The most frequently requested laboratory tests were CBC, glucose, creatinine, urea, AST and ALT in two hospitals. Conclusions Despite significant variations in location, structure, medical staff, and patient demographics, approximately one-third of outpatients and 85 % of inpatients at these hospitals undergo testing in CBL. CBLs are essential for screening, diagnosis, prognosis, and healthcare treatment.

Objectives Investigation of angiopoietin-like protein-4 (ANGPTL-4) and vascular endothelial growth factor A (VEGF-A) levels as a biochemical marker in gestational hypertension (GH) and preeclampsia (PE), which are known to have important roles in the maintenance of angiogenesis and endothelial functions. Methods A total of 90 patients included in this case-control study. Group 1 (G1) (n=30)=patients with healthy pregnancy between 37 and 41 weeks, G2 (n=30)=patients diagnosed with gestational hypertension between 20 and 37 weeks, G3 (n=30)=patients diagnosed with preeclampsia between 20 and 37 weeks. The sera obtained from the patients were stored at −80 °C until they were studied. Demographic parameters, systolic, diastolic and mean arterial blood pressure were recorded. VEGF-A and ANGPTL-4 levels were studied with enzyme-linked immunosorbent assay (ELISA) kit. Results The mean age was similar in both groups. The number of primigravida pregnant was higher in G2 and G3 than in G1. Gestational week was more advanced in G1 compared to G2 and G3. While ANGPTL-4 and VEGF-A levels were similar between G2 and G3, they were significantly higher in both groups compared to G1. Conclusions We showed that ANGPTL-4 and VEGF-A levels were elevated in maternal serum in GH and PE cases. Increased maternal serum ANGPTL-4 levels may be a biomarker that can be used in the early diagnosis of PE.

Objectives All countries have been deeply affected by the coronavirus disease 2019 pandemic, both economically and in situations that strain health systems, such as workforce and workload. Therefore, various measures should be taken to control the disease and prevent its spread. Since the disease onset, real-time PCR tests have been used as the gold standard for disease diagnosis. Owing to the rapid progress of the pandemic and the spread of the disease, validation, consistency, and optimization tests of some commercial kits have been conducted directly in the field. Therefore, it is important to compare the results of these kits and improve the existing ones. Methods We compared five kits (Bioexen, Polgen, Coronex, Diagen, and Anatolia) donated to the TOBB Economics and Technology University Hospital PCR laboratory with the KrosGen kit to detect severe acute respiratory syndrome coronavirus 2. A total of 244 samples were selected and analyzed using five different severe acute respiratory syndrome coronavirus 2 PCR detection kits. Results Positive and negative results from the six kits were compared using the working protocols of the kits, primers, and cycle threshold (Ct) values. Five of the six kits have reliable compatibility for Ct<30 but decreases for Ct≥30. Therefore, it is important to evaluate the performance of these kits for reduced viral loads. Conclusions Using a suitable kit with high compatibility for Ct≥30 is important for detecting patients with a low viral load and helping prevent disease spread.

Objectives The elderly population is categorized as a risk group for COVID-19 infection, and dementia is the primary cause of disability in elderly individuals and affects 70 % of the elderly population. In this study, we evaluated the blood and serum biomarkers of deceased dementia patients infected by COVID-19 compared to the survived dementia and non-dementia patients. Methods Laboratory biomarkers of 11 dementia patients infected by COVID-19 have been used for this study. The five patients’ serum biochemistry and blood data were compared with the six patients who died because of COVID-19. Additionally, data from nine patients aged 85–96 infected with COVID-19 without dementia have been used to compare the difference between dementia and non-dementia individuals. Results D-dimer, C-reactive protein (CRP), glucose, blood urea nitrogen (BUN), alanine transaminase (ALT), aspartate aminotransferase (AST), troponin, procalcitonin, red cell distribution width (RDW), white blood cell (WBC), neutrophil (NEU) and %NEU levels significantly increased in the deceased dementia patients compared to the survived and non-dementia individuals. Calcium (Ca), hematocrit (HCT), red blood cells (RBC), lymphocyte (%LYM), monocyte %MONO, and basophil (%BASO) levels significantly decreased in the deceased dementia patients compared to the survived and non-dementia individuals infected by COVID-19. Conclusions Serum biochemistry and hematological biomarkers, including D-dimer, CRP, glucose, ALT, AST, BUN, troponin, procalcitonin, RDW, RBC, WBC, NEU, %NEU, Ca, HCT, %LYM, %MONO, and %BASO were significantly altered in deceased dementia patients infected by COVID-19 compared to the survived individuals.

Objectives COVID-19 in it is more severe form is characterized by a hyperinflammatory condition, hypercoagulation state and the appearance of pulmonary microembolism. In this study we wanted to correlate levels of D-Dimer, protein C, protein S and antithrombin 3 with severity of disease and clinical outcome. Methods We included 134 of patients who were divided in 3 groups regarding oxygen support (high flow oxygen therapy, mechanical ventilation and oxygen supplementation with nasal cannula or mask). Results Concentration of D-Dimer, and activity of protein C and antithrombin 3 are presented as mean±SD and differed significantly between patients on mechanical ventilation (3.26 ± 1.15 mg/L, 86 ± 22.55 %, 81.21 ± 17.61 %)/HFNO (2.35 ± 1.68 mg/L, 109.6 ± 26.96 %, 94.67 ± 17.49 %)/BNC (1.37 ± 1.17 mg/L, 116.92 ± 28.16 %, 103.29 ± 15.63 %) with p<0.001 for all parameters. Mortality in oxygen group was 10.9 %, in HFNC group 40.7 % and in mechanical ventilated group 80 %. Conclusions determination of anticoagulant factors in COVID-19 patients may indicate which of them are at increased risk of developing severe disease, venous thromboembolism and fatal clinical outcome.

Objectives The aim of this study was to describe the effectiveness of the vaccines (Tozinameran and Sputnik V), administered on a convenience sample of healthcare workers, and also to describe the relationship between the levels of neutralizing antibodies (NAbs) and the type of vaccine used, as well as their association with incident cases during follow-up. Methods The study included 262 participants, who underwent vaccination during the period from September 2021 until August 2022. For determining the levels of NAbs we used the CLIA based method, and all the samples were processed with the SNIBE Maglumi 800 analyzer. The patients were observed for one year for occurrence of incident infection. Results The participants with prior SARS-CoV-2 positivity showed substantially higher titer of NAbs (8.86 vs. 0.94, p<0.001). The participants in the Gam-COVID-Vac group had median levels of NAbs of 1.57 (IQR 0.42–5.73), while they in the Tozinameran group showed substantially higher levels of 2.37 (IQR 0.9–6.27). The incident cases after immunization had substantially lower median values of NAbs when compared to the rest (0.48 vs. 3.97, p<0.001), and the interval between the second dose and the serological measurements were similar. Conclusions The current study showed that the tested vaccines demonstrated vaccine effectiveness of over 50 % during the first year after the vaccination in a sample of health care workers. Although health care workers remain separate population group, when compared to the rest, the results could be extrapolated to populations with similar age and immune experience.

Objectives Schizophrenia is a neuropsychiatric disease, and its etiology is not exactly understood. DNA methylation is an important phenomenon that affects the rise of abnormal phenotypes in many cases. Investigation of the association between DNA methylation and schizophrenia is crucial for elucidating the basis of schizophrenia. Previous association studies confirm that the SYN2 gene is a strong candidate gene for schizophrenia. In the current study, the relationship between the methylation status of the SYN2 gene and schizophrenia was investigated. The aim is to obtain crucial results for illuminating the effects of the SYN2 methylation changes in the etiology of schizophrenia. Methods In light of this scientific information, we investigated the methylation status of three different CpG regions in the promoter of the SYN2 gene and compared them in healthy controls and schizophrenia patients. Thirty-three healthy controls and 36 schizophrenia patients were included in this study. Sequencing was performed using the pyrosequencing method to reveal the methylation pattern. Results As a result of the statistical analysis, it was confirmed that there is a significant relationship between the methylation pattern of the SYN2 gene and schizophrenia. Schizophrenia patients showed more methylation in position 2 and position 3. Additionally, the average methylation ratio is increased in schizophrenia patients. Conclusions We find an association between the DNA methylation pattern of the SYN2 gene and schizophrenia. These results can help to the understanding of the etiology of schizophrenia. Except for these, DNA methylation changes in the SYN2 gene in people who live in urban and rural areas can be one of the reasons for the different incidences of schizophrenia in these regions.

Objectives To study the relationship between DNA methylation and tumour development and provide experimental evidence for the personalized diagnosis and treatment of hepatic carcinoma. Methods The DNA of hepatic carcinoma tissue (Ca group) and adjacent normal tissue (T group) were extracted using the phenol-chloroform method and then treated with bisulfite. Twenty-five genes including 45 subtypes were amplified by PCR. The PCR products were sequenced via the Illumina 450k methylation array assay. The changes of methylated DNA performance were analysed through principal component analysis (PCA). Cluster analysis was used to evaluate the classification of methylated DNA regions. Haplotype abundance variation was tested for methylation differences. Statistical analysis was performed using the chi-square (χ 2 ) test or Fisher’s exact test. Results Sequencing discoveries indicated CG-type methylation pervading all amplicons. However, CHG-type and CHH-type methylations were confined to only four amplicons (or nine subtypes). The methylation ratios of three specific amplicons (DAB2IP, PRDM14-1, Rab31-1) out of 45 amplicon subtypes in the Ca group significantly increased (over 10 %) compared to the T group (p<0.05). Nineteen amplicons demonstrated minor distinction (methylation pattern variations between 1 and 10 %), with the remaining 23 amplicons showing only minimal disparities (under 1 %). PCA and cluster analysis unveiled a marked difference in methylation levels between cancerous and healthy tissues (p<0.05). Conclusions The changes in haplotypes and methylation sites could serve as a biomarker for the clinical diagnosis of hepatic carcinoma. Methylation patterns might play an important role in the occurrence and development of hepatic carcinoma.

Objectives This pilot study aimed to evaluate the efficacy of the 4-h mean lactate clearance (LACclr) level as a predictive factor for in-hospital outcomes, 30-day mortality, and treatment success in patients with acute cardiogenic pulmonary edema (ACPE), a significant clinical form of acute heart failure (AHF). Methods A total of 44 patients diagnosed with acute pulmonary edema were included in the study. The patients were divided into two groups based on lactate levels and negative outcomes, and lactate and LACclr levels and negative outcomes were analyzed using statistical tests such as Fisher’s exact test, Student’s t-test, Mann-Whitney U test, and Receiver operating characteristic (ROC) analysis. Results The results indicated a statistically significant difference in the total hospitalization length of stay according to whether the patients had a negative outcome (intubation and in-hospital mortality) (p=0.033). Additionally, the area under the curve (AUC) value for 4-h mean LACclr was 0.795 in all patients, which was statistically significant in predicting 30-day mortality (p=0.033). The optimal cut-off value for the 4-h mean LACclr in predicting 30-day mortality was found to be 5.57 %, with 80 % sensitivity and 66.7 % specificity. The threshold to rule out 30-day mortality for all patients was 18.85 with 100 % sensitivity and 30.2 % specificity (AUC, 0.795 95 % CI [0.546–1.000], p=0.033). Conclusions These findings suggest that the 4-h LACclr level, calculated within 4 h of emergency department (ED) presentation, can be used as a predictive indicator for needing intubation, in-hospital mortality, and 30-day mortality and to identify patients at higher risk for adverse outcomes.

Objectives ZRF1 (Zuotin-related factor 1) is a versatile protein engaged in protein folding, gene regulation, cellular differentiation, DNA damage response, and immune system and cancer development regulation. This study investigates the role of ZRF1 in monocyte-to-macrophage transformation, and its effects on cell proliferation and the cell cycle. Methods We generated ZRF1-depleted THP-1 cells and induced macrophage differentiation using phorbol 12-myristate 13-acetate (PMA). Differentiation was assessed via microscopy and flow cytometry, while cell proliferation was quantified with the [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt] (MTS) assay, and the cell cycle was analyzed through flow cytometry using propidium iodide staining. Results ZRF1-depleted THP-1 cells exhibited notable morphological changes. Flow cytometry post-PMA treatment indicated these cells were smaller and less granular than controls. Proliferation rates of ZRF1-depleted monocytes and macrophages were significantly higher than controls, particularly over longer durations. Cell cycle analysis showed ZRF1 depletion notably affected the G0-G1 phase, highlighting its significant role in macrophage differentiation. Conclusions The findings provide important insights into ZRF1’s role in monocyte-to-macrophage differentiation and its impact on cell proliferation and the cell cycle. This research not only supports existing knowledge about ZRF1 but also enhances our understanding of its multifaceted roles in cellular processes.

Objectives Diabetic retinopathy (DR) is a retinal disease that arises from impaired glucose tolerance and leads to retinal microvascular leakages. Recent studies have indicated that DR pathogenesis is linked to dysfunctional retinal pigment epithelial (RPE) cells. Methods Investigating the potential interplay between endothelial cells (ECs) and RPE cells by treating ECs with high glucose (HG) and evaluating the function of cytokines released from ECs on the growth of RPE cells. Results The results revealed that high glucose-stimulated human umbilical vein endothelial cells (HUVECs) activated the NF-κB signaling pathway, increased intracellular levels of reactive oxygen species (ROS) and expression of caspase 3 while also elevating HUVECs delivery of cytokines such as VEGF, TNF-α, IL-6, and IL-1β. Conclusions As a result of our study, cytokines released from HG-treated HUVECs impede the growth of ARPE-19 in vitro , highlighting the importance of functional ECs for exploring the underlying mechanisms of vascular-associated retinal dysfunction. Inflammatory factors secreted from endothelial cells induced by high glucose impair human retinal pigment epithelial cells.

Objectives Lung cancer remains a predominant cancer type with high incidence and low survival rates. Key challenges in its treatment include impaired cellular mechanisms, notably resistance to apoptosis and altered immune responses. A critical aspect in this context is the heightened TLR4-mediated signaling, known to promote cell survival, metastasis, and resistance to cell death, particularly impacting immune microenvironment regulation. This study focuses on evaluating the impact of TLR4 signaling activation on potential therapeutic strategies. Methods Our research utilizes cannabidiol (CBD), a compound already employed in mitigating chemotherapy side effects in lung adenocarcinoma, recognized for its antitumor properties including antiproliferative, antimetastatic, and apoptosis-inducing effects. However, the effectiveness of CBD in lung cancer cells with elevated TLR4 signaling remains uncertain. Results Our findings reveal that the combination of CBD and TLR4 agonist affects cell viability, proliferation, cell cycle progression, apoptosis, and gene expression related to immune response and extracellular matrix regulation. In lung adenocarcinoma cells with activated TLR4, CBD shows an increased IC 50 value, reflecting reduced antiproliferative capacity. Furthermore, its efficacy in arresting the cell cycle and inducing apoptosis is also compromised. The influence on immune response and extracellular matrix regulation is also altered in TLR4-activated cells. Conclusions These results indicate that TLR4 activation significantly diminishes the antitumor efficacy of CBD. This highlights the importance of considering TLR4 signaling activation in future research on therapeutic agents like CBD for cancer treatment.

Objectives We aimed to analyze the effects of diacerein in a rat model of partial unilateral ureteral obstruction (PUUO). Methods We randomly divided 24 female rats into three groups. Control group, PUUO group and PUUO + diacerein group. The PUUO group was subjected to the PUUO model for seven days. The PUUO + diacerein group received oral diacerein (80 mg/kg) for seven days. Spectrophotometric methods were employed to measure oxidative stress parameters, including malondialdehyde (MDA), protein carbonyl (PC) and antioxidant enzyme levels, including glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD), while indicators of renal function, such as kidney injury molecule-1 (KIM-1) and neutrophil gelatinous-associated lipocalin (NGAL), along with inflammatory parameters interleukin-1 beta (IL-1beta), tumor necrosis factor-alpha (TNF-alpha), and interleukin-6 (IL-6), were assessed using the ELISA method. Inflammatory parameters were measured in blood samples, and other parameters were analyzed in kidney tissue. Hematoxylin-eosin method examinations were used for histological analyses. Results IL-1beta, TNF-alpha, and IL-6 levels were found to be significantly decreased in the PUUO + diacerein group compared to the PUUO group (p=0.006, p=0.002 and p=0.001, respectively). In the PUUO + diacerein group, GSH-Px and SOD activities increased compared with the PUUO group (p=0.031 and p=0.037, respectively). We also observed a significant improvement in renal function parameters, such as KIM-1 and NGAL levels in the PUUO + diacerein group compared to PUUO (p=0.002 and p=0.012, respectively). The PC and MDA levels were highest in the PUUO group (p<0.001). Similarly, the histopathologic tissue damage was the most prominent PUUO group (p<0.001). Conclusions Our study found that diacerein is a highly effective pharmacologic agent in alleviating oxidative damage in PUUO model rats.

Objectives The bee stinger is the defense organ of honeybees. The venom sac of a worker bee is connected to its stinger, which is used as a defense mechanism, and it has a potent and complex combination of substances that is unique in the animal kingdom. Many immune-related illnesses have been successfully treated with bee venom and recent evidence on the efficacy of applications targeting malignancies has attracted considerable attention. Methods The 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) test was used to determine the cytotoxicity of the crude venom, and the flow cytometric analysis was used to determine the apoptotic potential. The cytotoxic activity of Apis mellifera cypria venom collected from two different apiaries in Cyprus was evaluated for the first time against breast (MDA-MB-231), colon (Caco-2), cervix (HeLa), prostate (PC-3), pancreas (Panc-1), lung (A549), glioblastoma (U-87MG) human cancerous and healthy lung fibroblast (CCD-34Lu) cells. Results The venom concentration that killed 50 % of the cells (inhibitory concentration, IC 50 ) is expressed as venom cytotoxicity. The IC 50 values of A. m. cypria crude venom on cultured cells varied from 4.18±0.75 to 22.00±1.71 μg/mL after treatment with crude venom for 48 h, with the most potent activities against PC-3, Panc-1, and HeLa cells. Analysis of apoptotic cells by flow cytometry of both venom samples showed that bee venom slightly induced early apoptosis on A549 and Panc-1 cells. Conclusions The venom of the A. m. cypria is discussed in this article, displaying promising results as a potential source for an alternative treatment method because of its cytotoxic effect.

Objectives The proliferation of vascular smooth muscle cells (VSMCs) induced by hyperglycemia plays a pivotal role in the development of atherosclerosis and restenosis. This study aims to examine the impact of angiotensin II (Ang II) and high glucose on VSMC proliferation and the phosphorylation status of key signalling proteins, specifically ERK1/2, Akt, and STAT3. Furthermore, we assess the inhibitory effects of resveratrol, a polyphenolic compound, on these signalling pathways. Methods Primary vascular smooth muscle cells (VSMCs) isolated from rat aortas were cultured in both standard media (SM: 5.5 mM) and high glucose media (HGM: 25 mM) and then treated with Ang II (100 nM). Proliferation was assessed using the WST-1 assay, and protein analysis was performed through immunoblotting. Results Ang II increased VSMC proliferation by 39 % in standard glucose environments and 17 % in high glucose environments. Resveratrol effectively suppressed Ang II-induced VSMC proliferation in both media. Furthermore, resveratrol inhibited the phosphorylation of ERK1/2 and Akt. Ang II also induced STAT3 phosphorylation by 29 and 18.5 % in SM and HGM, respectively. However, resveratrol treatment reduced STAT3 phosphorylation to control levels. Conclusions These findings demonstrated that resveratrol reduces VSMC proliferation induced by Ang II and high glucose conditions, exerting its inhibitory effects by suppressing ERK1/2, Akt, and STAT3 phosphorylation. These results provide valuable insights into the cardioprotective properties of resveratrol.

Objectives Gram-positive sporulated bacilli can cause many different diseases and isolation from environmental samples is difficult. Therefore, the quick detection and diagnosis of these microorganisms have critical importance because of their potentially harmful situation. However, many accepted diagnostic methods exist, and future technology points to immunoassay systems. Immunological methods to detect biological microorganisms require antigen-specific high-affinity antibodies as key materials. Methods In this study, Bacillus anthracis (34F2 sterne) bacterium, which causes anthrax disease, was chosen as a model organism to develop antibodies against bacterial spores. The produced spores were inactivated with gamma irradiation, and the development of monoclonal antibodies against inactivated spores was performed using hybridoma technology. Also, the polyclonal antibody was successfully obtained by immunizing the rabbit. Indirect and sandwich ELISA tests were performed to determine the antigenic properties of inactivated spores and the specific affinity of the developed antibodies. Results The spores, inactivated with 15 kGy, have the best-preserved surface epitopic regions and were selected as immunogen. Developed monoclonal and polyclonal antibodies were shown that there was no cross-reaction with other Bacillus species. Also, it was demonstrated that these antibodies could detect inactivated spores at a concentration of 10 5 spores/mL in a sandwich ELISA assay. Conclusions These qualified antibodies obtained will be essential in developing antibody-based diagnostic systems for spore detection from various environmental samples. This study suggests that the inactivated spores are a decent immunogen for generation antibodies and may be a candidate component for live vaccine formulation.