Prostaglandin synthesis in rabbit graafian follicles in vitro. Effect of luteinizing hormone and cyclic AMP |
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Authors: | John M Marsh Norman ST Yang William J LeMaire |
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Abstract: | We have demonstrated the capacity of isolated follicles from estrous rabbits to synthesize prostaglandins in vitro and to respond to gonadotropins added to the incubation medium with an increased accumulation of these lipids. The increase in both prostaglandins became apparent only after 5 hours of incubation. The effect was specific for hormones with LH activity and the threshold dose of LH appeared to be 0.005 μg/ml. In addition, we have shown that cyclic AMP (0.02 M) added to the incubation medium also increased prostaglandin in this in vitro system and appears to be a likely mediator of this action of LH. |
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