[Effect of thyroidectomy on the histochemical and electrophysiological properties of the soleus muscle in rats].
In the musculus soleus of mature male rats, 6 weeks after thyroidectomy, muscle fibers with a low adenosin triphosphatase activity of myosin decrease in number, as well as the cross section area of the muscle fibers with a moderate and high activity of the enzyme. Optic density of the muscle fibers staining also decreases when succinatedehydrogenase activity is determined histochemically. There is no change in the rest membrane potential and in the character of the muscle fiber membrane sensitivity to acetylcholine. The change in the muscle fiber histochemical properties is combined with chromatolysis in the motor neurons of the spinal cord ventral horns.
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D004594:Electrophysiology; D006651:Histocytochemistry; D008297:Male; D008564:Membrane Potentials; D009132:Muscles / Q000187:drug effects / Q000502:physiology*; D051381:Rats; D013961:Thyroid Gland / Q000502:physiology*; D013965:Thyroidectomy; D013997:Time Factors
D000109:Acetylcholine
Vliianie tireoidéktomii na gistokhimicheskie i élektrofiziologiches-kie svoĭstva kambalovidnoĭ myshtsy krysy.