[Features of pathological anatomy of COVID-19 according to autopsy results in the Volgograd Region].

Unlabelled: In connection with the ongoing pandemic of the novel coronavirus infection, the study of its morphopathology and the analysis of autopsy data are relevant. At the same time, attention should be paid to thromboses that play a significant role in the development of fatal outcomes in COVID-19, even taking into account the prescription of anticoagulant therapy to most patients.

Objective: To make an assessment of morphological changes and a statistical analysis of the structure of mortality in COVID-19 on the basis of autopsy results in the Volgograd Region in 2020.

[Structural and functional changes of the foot after cyclic centrifugal physical loads in sports runners].

Foot structural and functional peculiarities after cyclic centrifugal physical loads in sports runners were studied. The work demonstrates the results of computer morphometry of 120 athlete runners (50 boys and 70 girls) aged 15-17 years--the students of Volgograd School of Olympic Reserve and Volgograd State Academy of Physical Education. Cyclic centrifugal loads of shock-type (long run on an inclined plane) resulted in significant reduction of the foot arch hight.

Structural changes in the nucleus ambiguus of the medulla oblongata and intracardiac ganglia in growing rats in immobilization stress.

The aim of the present work was to study qualitative and quantitative measures of histological changes in the nucleus ambiguus (NA) of the medulla oblongata and the cardiac autonomic ganglia (CAG) in growing animals in conditions of immobilization stress of different durations. Experiments were performed on 56 mongrel white rats aged 30 days. Immobilization stress was produced by placing rats in a special apparatus with a controllable internal volume for 3, 7, 15, and 30 days.

[Structural changes in the medullary nucleus ambiguus and cardiac autonomic ganglia of growing rats under influence of the immobilization stress].

The objective of this study was to evaluate the quantitative and qualitative histological changes in the medullary nucleus ambiguus (NA) and cardiac autonomic ganglia (CAG) of the growing organism under the influence of immobilization stress of different duration. The experiments were performed on 56 outbred albino rats with the initial age of 30 days. Immobilization stress was induced by placing the rats into special chambers with a controllable volume of the inner space for 3, 7, 15 and 30 days.