A diurnal plasma vasopressin rhythm in rats

G. H. Greeley, M. Morris, J. C. Eldridge, J. S. Kizer

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


The purpose of this paper was to determine whether there is a diurnal plasma arginine vasopressin (AVP) rhythm in rats. Using an AVP radioimmunoassay, plasma AVP levels were determined at frequent intervals throughout a 24-hour period in adult male rats. Our data revealed a diurnal rhythm in plasma AVP levels, with mid-afternoon and early evening levels significantly greater than those in the morning and late evening.

Original languageEnglish (US)
Pages (from-to)2843-2846
Number of pages4
JournalLife Sciences
Issue number25
StatePublished - Dec 20 1982
Externally publishedYes

ASJC Scopus subject areas

  • General Pharmacology, Toxicology and Pharmaceutics
  • General Biochemistry, Genetics and Molecular Biology


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