Abstract
INVESTIGATIONS on naturally occurring œstrogens in the dog are few. So far as urinary œstrogens are concerned, controversial reports are given by authors using biological methods. Helm1 and Küst2 report negative findings for both non-pregnant and pregnant animals, while Lesbouyries and Berthelon3, Finck4, and Stiasny5 found evidence for the presence of œstrogens in the urine of pregnant animals. Nilsson6 reports positive values for non-pregnant bitches. In none of these investigations was the urine hydrolysed before assay.
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References
Helm, K., Tieräzt. Rdsch., 37, 671 (1931).
Küst, Deutsch. Tierärztl. Wschr., 39, 738 (1931).
Lesbouyries and Berthelon, Bull. Acad. Vet. Fr., 9, 62 (1936).
Finck, Rec. Med. Vet., 112, 628 (1936).
Stiasny, H., Z. Geburtsh. Gynäk., 116, 108 (1937).
Nilsson, S. A., Skand. Vet. T., 38, 643 (1948).
Brown, J. B., Biochem. J., 60, 185 (1955).
Velle, W., “Undersökelser over Naturlig Forekommende Östrogener hos Drövtyggere og Gris”, thesis (Oslo, 1958).
Diczfalusy, E., and Westman, A., Acta Endocrinol., 21, 321 (1956).
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KRISTOFFERSEN, J., VELLE, W. Urinary Œstrogens of the Dog. Nature 185, 253–254 (1960). https://doi.org/10.1038/185253a0
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DOI: https://doi.org/10.1038/185253a0
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