Oestrogens and progestagens in rat ovarian follicles during the oestrous cycle.
The amounts of follicular oestrogens increased simultaneously with the growth of follicles to reach a maximum on the day of pro-oestrus at 18:00 h, then decreased rapidly. Progestagens were detectable only in large follicles excised at pro-oestrus. Small follicles at pro-oestrus contained small amounts of oestrogens.
D000818:Animals; D004967:Estrogens / Q000378:metabolism*; D004971:Estrus; D005260:Female; D006080:Ovarian Follicle / Q000254:growth & development / Q000378:metabolism*; D011247:Pregnancy; D011372:Progestins / Q000378:metabolism*; D011863:Radioimmunoassay; D051381:Rats
D004967:Estrogens; D011372:Progestins