[Effect of sympathetic impulses on parafollicular cells (K-cells) of the thyroid gland].
Reaction of K-cells (detectable by the Savitsky method) to stimulation of the superior cervical sympathetic ganglia or to their removal was examined in experiments on male rabbits. Stimulation of the sympathetic ganglia attained as a result of application to them of a ringlet made of solid silver wire produced a marked rise of the number and size of K-cells, with the serotonin content in the thyroid gland being significantly increased as compared to the initial level. Bilateral cervical sympathectomy entailed a reduction in the serotonin content and in the size of K-cells. In the course of hyperthyroidization the functional activity of the thyroid epithelium decreased and K-cells underwent a pronounced reduction.
D000818:Animals; D002116:Calcitonin / Q000378:metabolism; D003594:Cytoplasmic Granules; D005728:Ganglia, Sympathetic / Q000502:physiology*; D008297:Male; D011817:Rabbits; D012701:Serotonin / Q000378:metabolism; D013562:Sympathectomy; D013961:Thyroid Gland / Q000166:cytology / Q000294:innervation* / Q000378:metabolism
D012701:Serotonin; D002116:Calcitonin
Vliianie simpaticheskikh impul'sov na parafollikuliarnye kletki (K-kletki) shchitovidnoĭ zhelezy.