Development of circadian periodicity in base and stress levels of corticosterone
- 1 November 1975
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 229 (5) , 1397-1399
- https://doi.org/10.1152/ajplegacy.1975.229.5.1397
Abstract
Base and stress levels of corticosterone were assessed at 4-h intervals over a 24-h period in male and female rats at age 18, 22, and 26 days. A significant periodicity in base levels of corticosterone is present at 22 days of age; however, a rhythm in stress values does not appear until age 26 days. At age 26 days the pattern of the circadian periodicity in both base and stress concentrations of corticosterone resembles that of the mature rhythm.Keywords
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