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Androgen release from zebrafish testicular explants. Amounts of 11-KT (11-Ketotestosterone) (ng/mg of testis weight) measured in the incubation media after short-term exposure (18 h) to increasing concentrations of cortisol (0, 0.1, 1, 10, 100, and 1000 ng/mL). Data are expressed as mean ± SEM fold change (n = 8 per concentration), relative to the control condition, which is set at 1 (dashed line).
