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. 1973 Dec;136(4):1053–1058. doi: 10.1042/bj1361053

A model for the passage of the neurohypophysial hormones and their related proteins through the rat neurohypophysis

Graham D Burford *, Peter Clifford , C W Jones *, Brian T Pickering *
PMCID: PMC1166056  PMID: 4786527

Abstract

The change in the radioactivity of vasopressin–neurophysin in the rat neurohypophysis after an intracisternal injection of [35S]cysteine was fitted to several mathematical models. The data fitted best a model in which there is a linear input of radioactive protein into one pool of the neurohypophysis, from which it is either released by an exponential process or transferred to a second pool from which it is released by a second exponential process with a rate constant much lower than the first. This model is compatible with the existence of a `readily releasable' pool first postulated by Sachs et al. (1967). Data for the change in radioactivity of vasopressin also gave a good fit in this model. Calculation of the rate constants suggested that the first pool represented about 2% of the total hormone.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Burford G. D., Jones C. W., Pickering B. T. Tentative identification of a vasopressin-neurophysin and an oxytocin-neurophysin in the rat. Biochem J. 1971 Oct;124(4):809–813. doi: 10.1042/bj1240809. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Burford G. D., Pickering B. T. Intra-axonal transport and turnover of neurophysins in the rat. A proposal for a possible origin of the minor neurophysin component. Biochem J. 1973 Dec;136(4):1047–1052. doi: 10.1042/bj1361047. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Jones C. W., Pickering B. T. Intra-axonal transport and turnover of neurohypophysial hormones in the rat. J Physiol. 1972 Dec;227(2):553–564. doi: 10.1113/jphysiol.1972.sp010047. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Norström A., Sjöstrand J. Transport and turnover of neurohypophysial proteins of the rat. J Neurochem. 1971 Nov;18(11):2007–2016. doi: 10.1111/j.1471-4159.1971.tb05060.x. [DOI] [PubMed] [Google Scholar]
  5. Sachs H., Fawcett P., Takabatake Y., Portanova R. Biosynthesis and release of vasopressin and neurophysin. Recent Prog Horm Res. 1969;25:447–491. doi: 10.1016/b978-0-12-571125-8.50013-2. [DOI] [PubMed] [Google Scholar]
  6. Sachs H., Haller E. W. Further studies on the capacity of the neurohypophysis to release vasopressin. Endocrinology. 1968 Aug;83(2):251–262. doi: 10.1210/endo-83-2-251. [DOI] [PubMed] [Google Scholar]
  7. Sachs H., Share L., Osinchak J., Carpi A. Capacity of the neurohypophysis to release vasopressin. Endocrinology. 1967 Oct;81(4):755–770. doi: 10.1210/endo-81-4-755. [DOI] [PubMed] [Google Scholar]
  8. Thorn N. A. In vitro studies of the release mechanism for vasopressin in rats. Acta Endocrinol (Copenh) 1966 Dec;53(4):644–654. doi: 10.1530/acta.0.0530644. [DOI] [PubMed] [Google Scholar]

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