Diurnal variation in uterine estrogen receptors in immature female rats--inhibition by arginine vasotocin.
A diurnal variation in uterine estrogen receptors from immature female rats was observed with the peak occurring during the mid-light phase (noon) of the cycle. Although no dose response was noted, all concentrations of arginine vasotocin ranging from 5 x 10(-7) to 5 x 10(-9) significantly inhibited binding of 3H-estradiol to estrogen receptors in the cytosol fraction of uteri obtained from immature female rats either during the light or dark phase of the photoperiod.
D000375:Aging; D000818:Animals; D002940:Circadian Rhythm / Q000187:drug effects*; D003600:Cytosol / Q000502:physiology; D005260:Female; D051381:Rats; D011960:Receptors, Estrogen / Q000187:drug effects / Q000502:physiology*; D014599:Uterus / Q000502:physiology*; D014668:Vasotocin / Q000494:pharmacology*
D011960:Receptors, Estrogen; D014668:Vasotocin