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  • Title: [Effect of cytostatics on the development of denervation disorders in skeletal muscles].
    Author: Mikhaĭlov VV.
    Journal: Biull Eksp Biol Med; 1981 Nov; 92(11):537-9. PubMed ID: 6274447.
    Abstract:
    Experiments on rats were made to study the effect of cytostatics on the rest membrane potentials (RMP) of muscle fibres and chemosensitivity of the botulinum toxin (BT) poisoned m. soleus. Intramuscular injection of the sublethal dose of BT on the 5th day evoked the blockade of the synaptic neuromuscular transmission, depolarization of the muscle cells and the decreased sensitivity to acetylcholine. Daily intraperitoneal injections of vincristine (25 micrograms/100 g) and fluorouracil (5 mg/100 g) to rats did not affect the development of the neuromuscular transmission blockade induced by BT. The cytostatics did not change the RMP of the myocytes or chemosensitivity of the normal muscles. However, both the drugs prevented the depolarization of myocytes and the decreased chemosensitivity of the muscles paralyzed with BT. It is assumed that the delayed appearance of the cytostatic-induced denervation is a consequence of the suppressed division of the satellite cells.
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