Cyclic Nucleotides and the Release of Vasopressin from the Rat Posterior Pituitary Gland
- 1 August 1982
- journal article
- research article
- Published by Wiley in Journal of Neurochemistry
- Vol. 39 (2), 569-573
- https://doi.org/10.1111/j.1471-4159.1982.tb03983.x
Abstract
When rat posterior pituitary glands were stimulated by a high concentration of K, a peak of cAMP and a peak of cGMP were detected after 0.5 min and 1 min, respectively, whereas the rate of release of vasopressin was maximal only after 2 min. When Ca was omitted from the medium, no significant changes in cyclic nucleotide levels were found and the vasopressin release remained at the basal rate. During cold-stimulated (10.degree. C) release of vasopressin, a peak of cAMP was detected after 5 m in simultaneously with the maximal rate of vasopressin release. The significance of the cyclic nucleotides in the release of vasopressin is discussed.Keywords
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