No abstract

No abstract

No abstract

Purpose. Description and illustration of the most common alternative causes of shortness of breath, cough, and acute chest pain in pandemic COVID-19 conditions. Material and methods. Authors evaluated results of the retrospective single-center study and instrumental data of 67 patients with complaints of sudden chest pain, cough and shortness of breath. For patients admitted to the hospital between March, 27 and June, 30, 2020, the first stage of diagnosis was made with the performed multispiral computed tomography (MSCT) of the chest, confirming the presence of pulmonary manifestations of COVID-19. The study did not include patients with pneumothorax identified at the pre - and hospital stages. We describe early radiographic changes in the chest organs, main vessels, and coronary bed in patients with CT-confirmed COVID-19 admitted to O.M. Filatov Municipal Clinical Hospital No. 15, Moscow for sudden chest pain, cough, and shortness of breath. Results. In CT of the chest organs, combinations of COVID-19 and pulmonary artery thromboembolism, central/peripheral lung cancer, and acute aortic syndrome manifestations were most common. Combinations of radiation techniques in pandemic settings are COVID-19 required by patients with the acute coronary syndrome. However, it will be possible to analyze all cases of a combination of acute chest pain and sudden shortness of breath in patients with COVID-19 only after processing an extensive array of data. Conclusion. In pandemic conditions, COVID-19 performing standard imaging methods should be not lost about the most frequent causes of chest pain and sudden shortness of breath, complementing native MSCT with contrasting enhancement in suspected pathology of the main arteries, and small circulation in high-risk patients.

No abstract

Numerous studies showed that diabetes mellitus (DM) increases the risk of death from COVID-19 by five times. It is generally accepted that the high lethality of COVID-19 against the background of DM is due to the main complications of this disease: micro-and macroangiopathies, as well as heart and kidney failure. In addition, it was shown that acute respiratory viral infection increases the production of interferon gamma, increases muscle resistance to insulin, and modulates the activity of effector CD8+ T cells. The ability of CD8+ T cells to recognize SARS-CoV-2-infected cells depends not only on humoral factors but also on individual genetic characteristics, including the individual set of major histocompatibility complex class I (MHC-I) molecules. In this study, the relationship of the MHC-I genotype of patients with DM aged less than 60 years with the outcome of COVID-19 was studied using a sample of 222 patients. It was shown that lethal outcomes of COVID-19 in patients with DM are associated with the low affinity of the interaction of an individual set of MHC-I molecules with SARS-CoV-2 peptides.

Objective: To investigate transcriptional alterations in human semen samples associated with COVID-19 infection. Design: Retrospective observational cohort study. Setting: City hospital. Patient(s): Ten patients who had recovered from mild COVID-19 infection. Eight of these patients had different sperm abnormalities that were diagnosed before infection. The control group consisted of 5 healthy donors without known abnormalities and no history of COVID-19 infection. Intervention(s): We used RNA sequencing to determine gene expression profiles in all studied biosamples. Original standard bioinformatic instruments were used to analyze activation of intracellular molecular pathways. Main Outcome Measure(s): Routine semen analysis, gene expression levels, and molecular pathway activation levels in semen samples. Result(s): We found statistically significant inhibition of genes associated with energy production pathways in the mitochondria, including genes involved in the electron transfer chain and genes involved in toll-like receptor signaling. All protein-coding genes encoded by the mitochondrial genome were significantly down-regulated in semen samples collected from patients after recovery from COVID-19. Conclusion(s): Our results may provide a molecular basis for the previously observed phenomenon of decreased sperm motility associated with COVID-19 infection. Moreover, the data will be beneficial for the optimization of preconception care for men who have recently recovered from COVID-19 infection. (Fertil Steril Sci Ò 2021;2:355-64. Ó2021 by American Society for Reproductive Medicine.

Российский национальный исследовательский медицинский университет имени Н. И. Пирогова, москва 2 Городская клиническая больница № 15 имени О. м. Филатова, москва, Россия non-compact myocardium of the left Ventricle in a pregnant patient With inherited thromBophilia: clinical case inVestigation Kokorin V. a. 1 , Kochmareva e. a. 1 , Vardanyan a. g.