The effect of an intrauterine device on myometrial glycogen in the hamster.

The myometrical glycogen content of the uterine horns of cycling, castrated and castrated hormone-treated hamsters was basically unaffected by the presence of an intrauterine device (IUD). The study also indicates that visual evaluation of histochemical localization of glycogen is not adequate to determine minor differences in staining intensity. The "estrogen-like" effect or stimulatory effect of the IUD on uterine glycogen in the rat is not duplicated in the hamster.