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In vitro metabolism of 4-pregnenes in ovaries of a freshwater teleost, the ayu (Plecoglossus altivelis): Production of 17α,20β-dihydroxy-4-pregnen-3-one and its 5β-reduced metabolites, and activation of 3β- and 20β-hydroxysteroid dehydrogenases by treatment with a fish gonadotropin

SpermatogenesisFertilityGynecologyFemale Reproductive FunctionReproductive BiologyReproductive PhysiologyReproductive EndocrinologyFish GonadotropinPublic HealthSteroid Metabolism20β-Hydroxysteroid DehydrogenasesFreshwater TeleostEndocrinologyPlacental FunctionBiologyDevelopmental BiologyMetabolismMedicineReproductive Hormone