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Figure 5 | Reproductive Biology and Endocrinology

Figure 5

From: Estradiol, progesterone, testosterone profiles in human follicular fluid and cultured granulosa cells from luteinized pre-ovulatory follicles

Figure 5

Ovarian follicular steroid synthesis. Diagramatic representation of the steroidogenic pathways in human pre-luteinized follicles (A) and post luteinized follicles (B), demonstrating granulosa dependence on theca cell testosterone steroidogenesis in pre-luteinized follicles and the de novo synthesis of progesterone from cholesterol due to induction/up-regulation of CYP11A and 3βHSD after the gonadotropin surge in post luteinized follicles.

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