Release of salmon gonadotropin and 17α-hydroxyprogesterone from lipophilized gelatin emulsion at 10, 20 and 30°C in the Japanese eel

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Hormone releasing properties from an emulsion prepared with lipophilized gelatin (LG emulsion) were investigated on salmon gonadotropin (sGTH) as a peptide hormone and 17α-hydroxyprogesterone (17αP) as a steroid at 10, 20 and 30°C by monitoring plasma profiles of these hormones after administration in the Japanese eel. Release of these hormones from the LG emulsion were slow and not largely influenced by water temperature, whereas release from saline solution (sGTH) or cottonseed oil (17αP) were rapid and increased with the elevation of temperature. © Rapid Science Ltd. 1998

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