Characterization of seasonal changes in prolactin and growth hormone cells in the hypophyses of white-tailed deer (Odocoileus borealis) by ultrastructural and immunocytochemical techniques

The American Journal of Anatomy
B A SchulteJ A Parsons

Abstract

Prolactin and GH cells were identified in thin sections taken from the adenohypophyses of adult male (6) and female (8) white-tailed deer, collected during all seasons of the year, by locating portions of the same cells in adjacent thick plastic sections immunostained for either PRL or GH. Growth hormone cells were round to ovoid in shape and filled with dense spherical secretory granules which ranged in size from 168 to 682 nm, with a mean diameter of 367 +/- 18 nm (X +/- SD) in the 14 glands studied. No apparent seasonal changes were evident in the ultrastructural appearance of GH cells. Prolactin cells were small and angular in shape during the winter months and contained only a few small secretory granules. By early summer, they wee markedly hypertrophied, round to oval in shape, and densely packed with large spherical secretory granules. The increase in size of PRL secretory granules was most prominent in pregnant females in May, when their mean diameter was approximately double than in midwinter. The ultrastructural appearance of PRL cells in September was similar to that of cells studied in March. The size distribution of PRL secretory granules overlapped that of the GH granules, ranging from 114 to 564 nm, and the mean ...Continue Reading

References

Apr 1, 1979·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·D G BaskinJ A Parsons
Aug 1, 1979·The Journal of Clinical Endocrinology and Metabolism·T M Duello, N S Halmi
Jul 1, 1978·Endocrinology·R R Peters, H A Tucker
Sep 1, 1975·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·S L ErlandsenL S Van Orden
Jan 1, 1970·Zeitschrift für Zellforschung und mikroskopische Anatomie·S Mikami
Aug 1, 1968·Archivum Histologicum Japonicum = Nihon Soshikigaku Kiroku·K Kurosumi
Oct 1, 1973·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·G C Moriarty
Aug 1, 1974·Journal of Reproduction and Fertility·H Karg, D Schams
Mar 1, 1974·Journal of Reproduction and Fertility·H L Buttle
Jan 1, 1969·Zeitschrift für Zellforschung und mikroskopische Anatomie·S I MikamiD S Farner
Feb 1, 1970·The American Journal of Anatomy·E Heath
Jan 1, 1980·General and Comparative Endocrinology·B A SchulteJ J Ozoga

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