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Science 18 February 1966:
Vol. 151. no. 3712, pp. 825 - 826
DOI: 10.1126/science.151.3712.825
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Articles

Catecholamine Concentrations: Changes in Plasma of Rats during Estrous Cycle and Pregnancy

Richard D. Green III 1 and Jack W. Miller 1

1 Department of Pharmacology, University of Minnesota, Minneapolis

Concentrations of norepinephrine in plasma of rats during estrus and pregnancy were significantly lower than during diestrus. Epinephrlne concentrations in the plasma were significantly higher in both estrous and diestrous females than in males.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)