[Localization of Ca2+ in the smooth muscle and glandular cells of the rabbit uterus].
The pyroantimonate and radiometric procedures were used to establish the presence of three foci of selective accumulation of ions Ca2+ in the myometrium smooth-muscular cells: in nuclei, mitochondria and endoplasmatic reticulum. In the epithelium of the womb glands, besides the same foci a considerable amount of ions Ca2+ is contained in the cytoplasm matrix. Under the effect of serotonin the myometrium nuclei lose 45Ca most actively in the epithelium cells of the womb glands the content of Ca2+ changes, that gives reason to suppose that these structure participate in the calcium redistribution with a change in the functional activity of myometrium.
D000818:Animals; D002118:Calcium / Q000032:analysis* / Q000378:metabolism; D002132:Calcium Radioisotopes; D002413:Cations, Divalent; D002467:Cell Nucleus / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure; D005260:Female; D008931:Mitochondria, Muscle / Q000648:ultrastructure; D009130:Muscle, Smooth / Q000648:ultrastructure*; D011817:Rabbits; D012701:Serotonin / Q000378:metabolism; D013997:Time Factors; D014599:Uterus / Q000648:ultrastructure*
D002132:Calcium Radioisotopes; D002413:Cations, Divalent; D012701:Serotonin; D002118:Calcium
Lokalizatsiia Ca2+ u hladkom'iazovykh ta zalozystykh  klitynakh matky krolyts'