Abstract
DR. SAMUELS is a gynaecologist and clinical endocrinologist of Amsterdam, and believes that the development of the fertilized ovum is under the direct control of the gonadotrophic hormones of the pituitary and chorion. He also believes that the thyrotrophic factor of the pituitary is identical with the luteinizing factor, and that both the sperm and the ovum contain a store of gonadotrophic substances. These views are a series of speculative and somewhat obscure conclusions derived from a general review of the literature. They are at variance with the more usually accepted conclusion, derived from experimental study, that the gonadotrophic substances exert an influence only on the pre-fertilization phases of development of the gametes. The burden of proof of Dr. Samuels' theses rests upon his shoulders, and until he can provide experimental support for his views they are scarcely likely to command more than occasional interest.
Die hormonalen Aspekte des Fortpflanzungsprozesses
Dr
Jules
Samuels
Von. Pp. v + 152. (Amsterdam: Holdert und Co., N.V., 1946.) n.p.
Die Hormonversorgung des Fœtus
Dr
Jules
Samuels
Von. Pp. vii + 320. (Leiden: E. J. Brill, 1947.) n.p.
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Die hormonalen Aspekte des Fortpflanzungsprozesses Die Hormonversorgung des Fœtus. Nature 161, 297 (1948). https://doi.org/10.1038/161297c0
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DOI: https://doi.org/10.1038/161297c0