Ultrastructural Changes in the Parathyroid Glands by the Injection of Parathormone in Rats

Ultrastructural Change in the Parathyroid Gland of the Phosphate Treated Newt, <i>Triturus pyrrhogaster</i> (Boié)

“…Large vacuolar bodies were also observed both outside and inside the Golgi field. Of these, the vacuolar bodies containing small vesicles belong to the so-called multivesicular bodies described in several animal species (DAVIS and ENDERS, 1961;HARA and NAGATSU-ISHIBASHI, 1964;LANGE and BREHM, 1965; ROGERS, 1965;NAKAGAMI, 1967;CORTELYOU and MCWHINNIE, 1967;HARA and NAGATSU, 1968;NAKAGAMI et al, 1968). In this work, the vacuolar bodies were first rapidly, then gradually decreased in number during experimental states.…”

“…The ultrastructure of the normal parathyroid gland has been studied extensively. Furthermore, a number of investigations on the fine structure of the parathyroid gland under experimentally hyper-or hypo-functional conditions have been reported in the rat (DAVIS and ENDERS, 1961;RAISZ, 1964, 1966;LEVER, 1965;MAZZOCCHI et al, 1967;HARA and NAGATSU, 1968;ROTH et al, 1968; ROHR and KRASSIG, 1968), frog (MONTSKO et al, 1963a;LANGE and BREHM, 1965), cow (CAPEN et al, 1965), rabbit (MELSON, 1966; TANAKA, 1969a, b; TANAKA et al, 1969a, b), mouse (STOECKEL and PORTS, 1966b;NAKAGAMI, 1967), cat (CAPEN and ROWLAND, 1968) and bat (AZZALI, 1970).However, the morphology of the secretory cycle of the parathyroid gland is still a matter of speculation.By comparison of the parathyroid gland of the naturally hibernating newt (SETOGUTI, ISONO and SAKURAI, 1970a) with phosphate treated ones the present paper aims at the elucidation of the correlations of different types of inclusion bodies in the gland: small dense granules, large homogeneously dense bodies, large heterogeneously dense bodies, vacuolar bodies containing uncoated vesicles and/or coated ones, and …”

Electron Microscopic Observations on the Parathyroid Gland of the EDTA-Treated Frog, Rana rugosa

“…;Kayser et al, 1961 ;Lange, 1961 ;Roth and Munger, 1962 ;Holzman and Lange, 1963 ;Munger and Roth, 1963 ;Capen et al, 1965 ;Lange and Brehm, 1965 ; Nakagami, 1965 ;Rogers, 1965 ;Capen and Young, 1967 ;Cortelyou and McWhinnie, 1967 ;Fujimoto et al, 1967 ;Nakagami, 1967 ; Capen and Rowland, 1968a, b ;Hara and Nagatsu, 1968 ;Coleman, 1969 ;Fetter and Capen, 1970 ;Iwatsutsumi, 1971 ;Clark and Khairallah, 1972 ;Narbaitz, 1972). In the present study, however, it was difficult to identify the light and dark chief cells, as described by several authors(Stoeckel et Porte, 1966a ;Furuta, 1971 ;Fujii and Isono, 1972 ;Shoumura, 1974 ;Fujii, 1975).…”

Parathyroid Morphology in Gerbils After Thyroidectomy and Calcium Administration

“…We also believe that these storage granules ran be released if the calcium concentration is decreased. Possibly, this release takes place under interaction of lytic enzymes (Stoerkel & Porte 1966, Hara & Nagatsu 1968, Rohr & Kriissig 1968). If the hypercalraemia persists, at least for some time, the storage gran-546 ules are believed to undergo lysosumal digeation in a way similar to that observed amon!…”