Model of Moderate Hyperhomocisteinemia Associated with Mechanical Injury: Dynamics of Morphometric Parameters of Microcirculatory Vessels

[Research and development of Sechenov University forensic medicine department within the program «Priority-2030» implementation]

A comprehensive analysis of research and development results of Sechenov University forensic medicine department for the last 5 years (from 2018 to 2022) was performed. The thematic structure and citation indices of scientific publications were presented. The most promising directions of the department's research activities were identified.

[Microcirculation in fractures of long bones of the lower extremity]

The study objective was to investigate soft tissue microcirculation in the area of a lower limb long bone fracture. We studied fractures of the lower limb long bones from 0 to 7 days of age in 17 males and 37 females. The mean age of patients was 57.33±2.53 years. Histological examination of soft tissues from the area of the lower limb long bone fracture and at the distance from the fracture was performed. Standard hematoxylin and eosin staining was used. The thickness and diameter of arterioles, venules, and capillaries were evaluated by morphometry of the sections made. The observed pattern reflects the response of the microcirculation of the soft tissues to the mechanical impact. The relative ratio of the artery diameter to the small-caliber vein diameter was 1.01±0.13, and the artery wall thickness to the vein wall thickness was 2.03±0.28, which can be considered a natural reaction of the microcirculation blood vessels to the mechanical impact in 1-1.5 weeks after the formed fracture of the lower limb long bone.

[Forensic expert evaluation problems of early and late complications of interventional methods of treating coronary heart disease (systematic literature review)]

This article focuses on current concepts of ischemic heart disease, its interventional treatment, pathomorphology of early and late postoperative complications, and forensic aspects in evaluation of restenosis of a stented blood vessel.

Morphometric Parameters of the Lung Tissue in Isolated Musculoskeletal Injuries under Conditions of Moderate Hyperhomocysteinemia

The combination of inherited and acquired factors of increased thrombosis complicates establishing the cause-effect relationships between mechanical injury and death during forensic medical examination. Morphometric parameters of the lung tissue and pulmonary vessels in isolated mechanical trauma under conditions of moderate hyperhomocysteinemia were studied in an experiment on laboratory animals. A regularity in changes of the morphometry parameters of the pulmonary vessels was found. Morphometric changes in the wall of pulmonary parenchyma veins can be used as an additional marker to assess the causal relationship between isolated mechanical injury and fatal complication in the form of pulmonary embolism.