Modulation of water diffusion during gonadotropin-induced ovulation: NMR microscopy of the ovarian follicle.

The preovulatory rat follicle reaches a diameter of 1 mm with no internal blood vessels. Nutrient supply to the enclosed oocyte depends solely on passive diffusion across the follicular wall and the follicular fluid. Spin-echo and stimulated-echo NMR microscopy experiments were applied here for studying modulations in water diffusion during gonadotropin… (More)