[Ultrastructural characteristics of endotheliocytes of skeletal muscle hemomicrocirculatory bed during tibial lengthening using G. A. Ilizarov technique].
The method of transmission electron microscopy was used to study the ultrastructure of endotheliocytes in the hemomicrocirculatory bed of the anterior tibial muscle of adult dogs during tibial lengthening with Ilizarov method. The capacity of endotheliocytes to reduction and renewal was established. The tension stress induced in the biological tissues of the lengthened limb stimulates and supports high activity of endotheliocyte nuclear apparatus, which is characterized by the prevalence of euchromatin. Presence of capillaries with closed lumen at all time points studied is indicative of a prolonged angiogenesis process in the terminal parts of the hemomicrocirculatory bed, which is accompanied by regeneration and growth of the muscle fibers. After the cessation of distraction, while the muscle tissue continued to grow and differentiate, the endotheliocyte growth and the activation of their synthetic apparatus was noted.
Chikorina
N K
NK
Shevtsov
V I
VI
D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D049109:Cell Proliferation; D004285:Dogs; D004730:Endothelium, Vascular / Q000473:pathology* / Q000648:ultrastructure; D022041:Euchromatin / Q000648:ultrastructure; D018889:Ilizarov Technique; D008833:Microcirculation; D046529:Microscopy, Electron, Transmission; D018482:Muscle, Skeletal / Q000098:blood supply* / Q000648:ultrastructure; D013977:Tibia / Q000473:pathology*
D022041:Euchromatin