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Electron Microscopy of Human Pituitary Adenomas : Correlation of the Secretory Granules to the Experimentally and Clinically Evaluated Hormone Synthesis Function of the Adenoma Tissues Tsuneo SHIMIZU 1 , Masaru TAMURA 1 , Takashi FUJII 1 , Shugo MISUMI 1 , Fumikazu TAKEDA 2 1Department of Neurosurgery, School of Medicine, Gunma University 2Department of Neurosurgery, Saitama Cancer Center Keyword: Electron microscopy , Human pituitary adenoma , Secretory granules , Hormone synthesis and release pp.441-453
Published Date 1979/5/10
DOI https://doi.org/10.11477/mf.1436200980
  • Abstract
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Ultrastructural features of the secretory granules of human pituitary adenomas obtained at correlation with the clinical features and abilities of the tumor tissue to synthesize and release growth hormone (HGH) and prolactin. These abilities were measured quantitatively, isolating the hormones by polyacrylamide gel disc electrophoresis after in vitro labeling of the hormones with 14C-leucine.

According to the preoperative signs, symptoms and endocrinological findings, the patients were classified into following 3 groups: In group I (adenoma without recognizable functional significance), 8 cases showed clinical signs of pituitary hypofunction and occular symptoms. Each anterior pituitary hormone conentration in plasma was low as compared with of normal humans.


Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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