Inhibin extracted from bovine follicular fluid and administered to chick embryos at a dosage increasing from 0.4 to 30 micrograms per embryo did not induce the regression of the Müllerian ducts of treated females. This result contrasts with that obtained with a testis graft which acts through its anti-Müllerian hormone. Although both hormones were of glycoproteic nature and secreted by the same cells, this study shows no functional analogy between them.
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