Introduction Coronavirus disease 2019 (COVID-19) is characterized by impact on different systems of human body. Recently, several anti-COVID vaccines have been developed. Material and methods In our study, we included two groups of males: GROUP1, anti-COVID vaccinated males, n = 46, and GROUP2, n = 43, non-vaccinated males, who all fell ill with the Coronavirus infection. A level of semen DNA fragmentation was characterized by Sperm DNA Fragmentation Index (SDFI) that was calculated before infection and compared with data at every month after laboratory recovery. The Mann–Whitney test was used to establish differences between parameters, with p <0.05 considered significant. Results Compared with the pre-COVID baseline we registered significant increasing of SDFI in each group of participants: 35.3 ±4.7% vs 18.6 ±5.8% in GROUP1, p = 0.0009, and 41.8 ±5.6% vs 19.2 ±6.1% in GROUP2, p = 0.0006. At the 2nd month after recovery SDFI in GROUP1 and GROUP2 continued to grow and reached its peak to 40.6 ±6.4% and 49.7 ±7.2% respectively. Thereafter SDF indexes in both Groups started to decrease, normalizing at the 7th month after COVID-19 recovery in GROUP1 and at the 9th month in GROUP2. Conclusions COVID-19 causes a gradual increase in semen DNA fragmentation, which peaks at the 2nd month after recovery and is more pronounced in unvaccinated men. Normalization of SDFI occurs no earlier than at the 7th month in vaccinated and at the 9th month in non-vaccinated men.

Abstract

A dangerous combination of two diseases that have reached pandemic proportions, COVID-19 and type 2 diabetes, have unique features of the comorbid course. Intense inflammation, hypercoagulation, dysglycemia, and immune and renal dysfunction are underlying processes in the pathogenesis of the combination of these diseases. Our study aimed to compare groups of hospitalized patients with moderate to severe coronavirus disease with and without diabetes, paying particular attention to renal function and examining the relationships between markers of renal dysfunction, inflammation, and thrombosis in these patient groups. In total, 79 patients aged 24 to 73 with moderate to severe coronavirus disease were examined. Patients were divided into 2 groups: 1st – without diabetes; 2nd – with diabetes. The clinical picture, laboratory results (additionally determined cystatin C level) and instrumental studies were compared. Correlation analysis was conducted in groups. The group of patients with type 2 diabetes mellitus had significantly lower oxygen saturation upon admission to the hospital. A significantly higher concentration of glucose in blood serum (11.3 (8.1; 16.5) mmol/l 5.2 (4.4; 6.6) mmol/l, P<0.01) and a lower creatinine level (106.0 (87.3; 123.0) mcmol/l vs. 129.5 (104.8; 167.3) mcmol/l, P<0.05) were observed in the 2nd group while there were no differences in urea and cystatin C levels. By means of correlation matrices, it was established that inflammation, hypercoagulation, dysglycemia, and impaired kidney function are underlying causes of the coronavirus disease pathogenesis in group 1 of patients. At the same time, inflammation and hypercoagulation are the causes in the group of patients with a combined course of type 2 diabetes mellitus. Although the combined course of coronavirus disease and type 2 diabetes mellitus is prognostically more severe, we found a significantly lower creatinine level in the group of patients with type 2 diabetes.

Abstract

УДК 619:612.174:612.1:636.4

Abstract

The primary aim of the work was to study the peculiarities of the influence of endogenous factors (products of inflammatory processes occurring in the tissues of female genitals) in the biological system of type “environment (uterine-vaginal mucus) – substance (water, organic and inorganic substances)” on the indicators of mass (g, mg) of its components. The results of the experiments indicate that their harmful effect changes the color and density of mucus released during estrus (UVM); reduces the parameters of the mass content of H₂O and inorganic substances (IS), but increases – organic (OS). Under these circumstances, the distribution of the parameters of the mass of the components of the dry residue (DR, dried at 105 ^oC) of UVM of cows of the experimental group is presented in a row where the mass of ОS₁ (burn at 520–530 ^oC) ˃IS ˃ОS₂ (burn at 650 ^оС), but for control is another as well as mass of IS˃ОS₁˃ОS₂. This means that the harmful effects of inflammatory products on the genital tissues of females negatively affect the distribution of the mass of OS and IS in the system “environment-substance”.

Abstract
Objective. To evaluate the risk of venous thrombosis and embolism in urgently operated patients with acute abdominal surgical pathology and coronavirus disease. Materials and methods. The single–centre study was based on the analysis of 741 medical records of inpatients admitted to a surgery centre between April 2020 and February 2022. The study analysed 78 medical records of patients operated on for acute abdominal surgical pathology with confirmed COVID–19. 8.9% of patients died, including 5.1% from massive pulmonary embolism with the development of acute cardiovascular failure. Thromboembolic complications were diagnosed in 26.9% of patients.
Results. The scores that assessed the risk factors for venous thrombosis and embolism were determined. A score of up to 15 points corresponded to a low risk, 15–35 points to an average risk, and more than 35 points to a high risk. Conclusions. The incidence of venous thrombosis and embolism in patients with coronavirus disease in the postoperative period in the low risk group is 8%, medium – 25%, and high – more than 40%. The real risk of thromboembolic complications is underestimated and requires consideration of the specifics of the course of coronavirus disease in patients with acute abdominal surgical pathology.
Key words: venous thrombosis and embolism; COVID–19, thromboembolic complications; acute surgical pathology
of the abdominal cavity.