Progesterone Receptors in the Canine Endometrium Affected with Pyometra

Abstract

Progesterone receptors in the uterus were examined in ten bitches with pyometra and five healthyadult bitches in the metestrous stage. These in the cytosol and nucleus of the endometrium withpyometra were 1.53±0.46 and 0.47±0.24p mol/g tissue, respectively. In the normal bitches, theywere 1.89±0.28 and 0.40±0.05p mol/g tissue, respectively. From these results, it may beshown that bitches with pyometra have not always higer affinity to progesterone in the uterusthan normal metestrous bitches.