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  • Title: [Condition of the microcirculatory bed of cat ventricular myocardium following exposure to gravitational stress].
    Author: Migunov VP.
    Journal: Arkh Anat Gistol Embriol; 1977 Oct; 73(10):44-9. PubMed ID: 931651.
    Abstract:
    The status of microcirculatory bed in the cat ventricular myocardium was studied after a single (10 units for 3 min) and repeated effect (6 units for 3 min every other day for a month) of overloading in the cranio-caudal direction (+Qz). The material to examine was taken in 20 min, 1, 3, 7 and 30 days after the completion of the experiment. The myocardial vessels were injected with water emulsion of Indian ink and studied by routine histological methods, amino nitrogen silver impregnation and electron microscopy. A single overloading was stated to result in changes of capillary permiability which was evident in the increasing amount of pinocyte vesicles, polysoma and endothelial plasmic processes. The effect of repeated overloadings produces more severe disorders in the walls of different components of the myocardial microcirculatory bed.
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