Functional Significance of Two Types of Neurosecretory Granules in the Posthypophysis: Ultrastructural and Cytochemical Approach

  • F. Tasso
  • J. L. Boudier
  • D. Picard
Conference paper

Abstract

Since elementary neurosecretion granules and two neurohormones, vasopressin and oxytocin, have been shown to occur in the hypothalamo- posthypophyseal system, the question has been raised whether different types of granules, fibers, and neurons correspond to each of the two hormones. This view was initially supported by biochemical data from ultracentrifuged cellular fractions; two types of granules and fibers containing vasopressin and oxytocin respectively could be separated.

Keywords

Uranyl Vasopressin Oxytocin 

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References

  1. Boudier, J.L., Burlet, C: On presence and distribution of two types of neurosecretory granules in the neurohypophysis of the garden dormouse. J. Microsc. Biol. Cell 27, 69–70 (1976)Google Scholar
  2. Tasso, F.: Localisation cytochimique ultrastrueturale de glycoprotéines dans les granules neurosécrétoires de la posthypophyse du rat. J. Microsc. (Paris) 18, 115–118 (1973)Google Scholar
  3. Tasso, F., Dreifuss, J.J., Picard, D.: Ultrastructural identification of granules containing oxytocin and vasopressin. Nature 260, 21–22 (1976)CrossRefGoogle Scholar
  4. Vandesande, F., Dierickx, K.: Identification of the vasopressin-producing and of the oxytoein-producing neurons in the hypothalamic magnocellular neurosecretory system of the rat. Cell Tissue Res. 164, 153–162 (1975)PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • F. Tasso
    • 1
  • J. L. Boudier
    • 1
  • D. Picard
    • 1
  1. 1.Faculté de MédecineERA-CNRS n°322-Laboratoire d’Histologie IMarseille Cedex 4France

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