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A diurnal fluctuation in medial basal hypothalamic-preoptic area cytosol estrogen receptors in ovariectomized
Brain Research
|November 18, 1985
Abstract:
Cytosol estrogen receptors (CER) were measured in ovariectomized hamsters, kept in a light:dark schedule of 14:10. Significant diurnal fluctuations in CER occurred in medial basal hypothalamus-preoptic area, but not in amygdala, anterior pituitary or uterus. Highest levels of CER in medial basal hypothalamus-preoptic area occurred 2 h before lights went out, and lowest levels 1 h after lights went out.