Levels of F prostaglandin (PGF) in uterine tissue during the estrous cycle of hamster: Effects of estradiol and progesterone

The uterine content and concentration of PGF varied throughout the estrous cycle of the hamster, and the changes did not correlate well with the times of maximum and minimum secretion of P GF in uterine vein blood.

Abstract

The uterine content and concentration of PGF varied throughout the estrous cycle of the hamster. The content was highest between 2400 hr of day 4 and 0030 hr of day 1, and lowest between 1045 to 1145 hr of day 1. The concentration was highest between 1045 to 1145 hr of day 2 and between 2400 hr of day 4 and 0030 hr of day 1, and lowest between 1045 to 1145 hr of day 1. The changes did not correlate well with the times of maximum and minimum secretion of PGF in uterine vein blood of the hamster reported by Shaikh and Saksena (19).