Literature DB >> 8224096

Ultrastructural changes in rat mammotropes following incubation with dopamine.

M Joneja1, C W Reifel, M L Murphy, S H Shin.   

Abstract

Cultured mammotropes incubated with dopamine for one hour exhibited changes in ultrastructure indicative of actively depressed biosynthetic and secretory activity. Peripheral relocation of rough endoplasmic reticulum appeared to create a barrier to secretory granule release by exocytosis. A decrease in the numbers of secretory granules indicated a decrease in prolactin production and enhanced lysosomal activity.

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Year:  1993        PMID： 8224096     DOI： 10.1007/bf01952593

Source DB:  PubMed          Journal:  Experientia        ISSN： 0014-4754


  22 in total

1.  Luteotrophic function of autografts of the rat hypophysis.

Authors:  J W EVERETT
Journal:  Endocrinology       Date:  1954-06       Impact factor: 4.736

Review 2.  Regulation of prolactin secretion at the level of the lactotroph.

Authors:  S W Lamberts; R M Macleod
Journal:  Physiol Rev       Date:  1990-04       Impact factor: 37.312

3.  An ultrastructural morphometric analysis of the adenohypophysis of lactating rats.

Authors:  S Cinti; A Sbarbati; M Marelli; F Osculati
Journal:  Anat Rec       Date:  1985-08

4.  Ultrastructural and immunocytochemical changes of prolactin cells of grafted pituitary after the injection of dopamine in the albino rat.

Authors:  T Ishibashi; M Shiino
Journal:  Acta Anat (Basel)       Date:  1988

Review 5.  Secretion and crinophagy in prolactin cells.

Authors:  M G Farquhar
Journal:  Adv Exp Med Biol       Date:  1977       Impact factor: 2.622

6.  Dopamine-induced physical barrier to inhibit prolactin release in mammotrophs disappears during resumption of prolactin secretion.

Authors:  C W Reifel; S H Shin; S L Saunders
Journal:  Neuroendocrinology       Date:  1985-05       Impact factor: 4.914

7.  Prolactin immunoreactivity of acidophils of the small granule type.

Authors:  H Nogami; F Yoshimura
Journal:  Cell Tissue Res       Date:  1980       Impact factor: 5.249

8.  A possible phagocytic role for folliculo-stellate cells of anterior pituitary following estrogen withdrawal from primed male rats.

Authors:  J C Stokreef; C W Reifel; S H Shin
Journal:  Cell Tissue Res       Date:  1986       Impact factor: 5.249

9.  Extensive ultrastructural changes in rat mammotrophs following administration of the dopamine agonist ergocristine-reflecting inhibition of prolactin release.

Authors:  C W Reifel; S H Shin; R A Leather
Journal:  Cell Tissue Res       Date:  1983       Impact factor: 5.249

10.  Dopamine creates a physical barrier to inhibit prolactin release in mammotrophs of estradiol-primed male rats.

Authors:  C W Reifel; S L Saunders; S H Shin
Journal:  Neuroendocrinology       Date:  1983       Impact factor: 4.914
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