Abstract
Summary
Decidual tissue in pseudo-pregnant hamsters prolonged ovarian progesterone release by one full day. The terminal decline in circulating progesterone occurred abruptly overnight in experimental and control animals and was synchronous with termination of hyperemia. During the hours immediately preceding luteal regression the mean progesterone level was significantly higher in hamsters with decidual tissue.
The author thanks Dr. Prentiss Schilling of the Experimental Statistics Department, Louisiana State University in Baton Rouge, for aid in the statistical analyses.
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