Unexpected Plasma Gonadal Steroid and Prolactin Levels Across the Mouse Estrous Cycle.

Prolactin Mean plasma prolactin concentrations fluctuated around 50 ng/mL and tended to be slightly higher during the day of proestrus compared with earlier days in the cycle, but this did not reach statistical significance.

also in 111,027 other papers

There was a nonsignificant trend toward increased levels of P4 at the 10 Am and 6 Pm time points in estrus and metestrus.

also in 5,406 other papers