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  • Title: [Reparative regeneration of muscle fibers of the skeletal type and reasons for its delay in local x-ray irradiation].
    Author: Dmitrieva EV.
    Journal: Arkh Anat Gistol Embriol; 1975 Jun; 68(6):31-6. PubMed ID: 1156191.
    Abstract:
    Under study was the reparative regeneration of the frog's tibial muscle and the reason of its delay under local X-ray irradiation in dosage of 800 and 3000 r. The irradiated animals were shown to have the same type of regeneration as non-irradiated animals. Both pale proper muscle nuclei and dark subsarcolemma nuclei belonging, to the author's mind, to cell-satellites, took part in it. The buds and "primary" myosymplasts playing mainly a subsidiary supporting role developed from the formers (which were not labeled with H-3-thymidine and did not divide mitotically). From the latters (labeled with H-3-thymidine and dividing mitotically) developed myoblasts and "secondary" myosymplasts forming young muscle fibres when merging with one another and then differentiating. At early stages of the process the delay in the muscle fibres regeneration was related with their radiation damage, at later stages - with a damage of the connective tissue.
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