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Horm Metab Res. 1985 Sep;17(9):458-63.

In vitro steroid secretion by intact bovine ovarian follicles in a superfusion system.


A superfusion system for single intact follicles is described. Bovine follicles were superfused for 5 to 10 hours. Progesterone and testosterone secretion was stable after an adaptation period of 150 min. A 5-minute stimulation with hCG resulted in a 2-fold increase in progesterone secretion. Superfusion for 450 minutes of 3 small follicles of similar size and in the same ovary next to each other showed different secretion patterns of progesterone and testosterone. Superfusion for 150 minutes of follicles obtained from 2 pairs of ovaries showed that follicular size is not a sufficient criterion to predict the progesterone and testosterone secretion pattern. Closeness of follicles (big or small) to a corpus luteum did not impair their ability to secrete progesterone and testosterone. It is concluded that a superfusion system as has been described in this report is an effective and desirable method to study the physiology and pathophysiology of single intact follicles.

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