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Quantitative Relations of Fetal and Maternal Pitiutary - Adrenal Systems I. EFFECTS OF MATERNAL HYPOPHYSECTOMY
B. T. Jackson, … , H. F. J. Rauschecker, G. J. Piasecki
B. T. Jackson, … , H. F. J. Rauschecker, G. J. Piasecki
Published December 1, 1973
Citation Information: J Clin Invest. 1973;52(12):3154-3160. https://doi.org/10.1172/JCI107515.
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Research Article

Quantitative Relations of Fetal and Maternal Pitiutary - Adrenal Systems I. EFFECTS OF MATERNAL HYPOPHYSECTOMY

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Abstract

Even though certain aspects of the fetal pituitary-adrenal system have been extensively studied, much remains to be learned of its basic development and function. In the present work, the effect of maternal hypophysectomy upon quantitative pituitary-adrenal relations in mother and fetus was investigated in pregnant beagle dogs. At 57 days gestation in each of seven normal animals and seven animals 3 wk posthypophysectomy, a cannula for collection of adrenal effluent was placed in a single fetus in utero under halothane anesthesia. A timed fetal adrenal sample was obtained; ACTH (10 mU) was injected into the fetus; 3 min thereafter a second fetal adrenal sample was collected and fetal and maternal peripheral arterial samples were drawn. All fetuses and their adrenal glands were weighed. Concentrations of cortisol and corticosterone were determined by a modification of the double-isotope dilution derivative method of Kliman and Peterson.

Authors

B. T. Jackson, H. F. J. Rauschecker, G. J. Piasecki

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