These findings have been further confirmed by exploiting the natural fluctuations in estradiol that the female rat undergoes during her 4-5 day estrous cycle.
Infusion of slices with 17b-estradiol caused a slight increase in baseline synaptic transmission, as in previous studies.
The volume of medium substituted for each follicle cultured under oil was too small to measure the estradiol concentration individually.
When endogenous circulating levels of 17b-estradiol are at their lowest levels (diestrus), the situation is reversed from that observed in the proestrus state.
Efficacy, safety and cycle control of five oral contraceptive regimens containing norgestimate and ethinyl estradiol.
Some studies have proved that cumulative lifetime exposure to estrogen, particularly estradiol, contributes to breast cancer risk [6].
To compare the estradiol serum levels on each treatment arm at baseline, 8, 16 and 24 weeks after randomization.
As mentioned previously, the premature adrenarche group also had significantly higher concentrations of adrenal androgens, estradiol and cor tisol.
