Molecular changes in the testes of COVID-19 patients.

After the sudden outbreak of the COVID-19 pandemic, scientists and clinicians around the world have significantly expanded understanding of the pathogenesis of the disease as well as the impact of SARS-CoV-2 on various organs and tissues. To date, it is accepted to consider the new coronavirus infection as a multisystem disease, but the data on the effect on fertility remains unclear. Previous works by other authors have presented controversial results, and there is no evidence of a direct effect of the new coronavirus on the male gonads.

Immunohistochemical Analysis of Spermatogenesis in Patients with SARS-CoV-2 Invasion in Different Age Groups.

Based on studies that focused on the effect of SARS-CoV-2 on human tissues, not only pulmonary invasion was revealed, but also impaired testicular function. Thus, the study of the mechanisms of influence of SARS-CoV-2 on spermatogenesis is still relevant. Of particular interest is the study of pathomorphological changes in men of different age groups.

[The use of extracorporeal blood purification for the treatment of cardiac rhythm disorders].

Hemosorption and plasmapheresis were used in 26 patients with episodes of atrial fibrillation and extrasystoles. A response lasting 4 +/- 0.9 months was registered in 80% of cases.

[The use of hemosorption and plasmapheresis for treating cardiac arrhythmias (a preliminary report)].

The authors present pilot experience in extracorporeal blood purification (hemosorption, plasmapheresis) aimed at correction of cardiac arrhythmia. Seven responders of 8 patients treated had less frequent episodes of cardiac fibrillation the severity of which decreased, they suffered no more from high-grade extrasystoles, were put on reduced doses of antiarrhythmic drugs. The response is attributed to improvement of blood rheology and elimination of arrhythmogenic substances.