The notion that estrogens play a meaningful role in ovarian folliculogenesis stems from a
large body of in vitro and in vivo experiments carried out in certain rodent models,(eg., rats) …

STUDY QUESTION What are the direct effects of progesterone (P4) and estradiol (E2) on
the development and function of primate follicles in vitro from the pre-antral to early antral …

Subsequent to an initial understanding that estrogen was only stimulatory to
folliculogenesis, we have come full circle to the present recognition that many actions of …

The present studies show that estradiol‐17B (E3) implanted sc. in rhesus monkeys for 24
hours reliably induces atresia of the dominant follicle (DF). Analysis of contents of the atretic …

Abstract Estradiol‐17β (E2) induces atresia of the dominant preovulatory follicle (DF) when
administered on day 6 of the menstrual cycle. The present study was designed to determine …

We have previously demonstrated that the exogenous administration of estradiol‐17β (E2)
to rhesus monkeys induces atresia of the dominant preovulatory follicle (DF); and that this …

Following treatment with estradiol‐17β (E2) on day 6 of the menstrual cycle, degenerative
alterations in the microenvironment of the dominant follicle (DF)(follicular fluid [FF] …

Imaging follicular development has advanced notably from the invasive—laparotomy—to the
relatively noninvasive—laparoscopy (making frequent observations over a single cycle …

Previous results have established that 17β‐estradiol (E2) administered in capsules for 24 h
on Day 6 of the menstrual cycle results in atresia of the dominant follicle (DF). The present …

The effect of an antiestrogen, Tamoxifen Citrate on the differential follicular counts in the
domestic pigeon Columba livia is investigated. 250µg/tamoxifen citrate/0.2 ml olive oil/day (7 …