Baroreflex and chemoreflex control of fetal hormone secretion

Reproduction, Fertility, and Development
C E Wood

Abstract

In recent years, the expanding literature in fetal cardiovascular physiology and endocrinology has improved our understanding of the afferent mechanisms involved in the reflex hormonal and neural responses to cardiovascular distresses, such as hypotension, hypoxia, hypercapnia, and asphyxia. For some endocrine systems, the relative roles of peripheral and central baroreceptors and chemoreceptors are well understood. The best example of such a system is AVP, summarized in Fig. 6. Published experiments have demonstrated that AVP secretion is influenced by arterial baroreceptors, but not by arterial chemoreceptors. On the other hand, there is most likely a chemosensitive area within the central nervous system controlling AVP secretion which responds to hypoxia as well as hypercapnia. Cardiac receptors are less important in the control of AVP secretion in fetal life than in postnatal life. Our understanding of the control of other hormonal systems, including renin and ACTH, is less complete. The challenge for the future in this field will be to fill in the gaps in our knowledge of these fetal reflexes, and to provide a functional understanding of the mechanisms underlying the quantitative differences between fetus and adult. For ex...Continue Reading

Citations

Jun 3, 2005·Pflügers Archiv : European journal of physiology·S J O'ConnorD A Giussani
Jul 23, 1998·Clinical and Experimental Pharmacology & Physiology·Z Y YuA D Stevens
May 7, 2010·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Nathan Knutson, Charles E Wood
Feb 14, 2006·The Journal of Physiology·Susie J O'ConnorDino A Giussani
Jun 7, 2006·Journal of the Society for Gynecologic Investigation·Charles E Wood, Damian Giroux
Apr 25, 2019·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Charles E Wood, Maureen Keller-Wood
Jul 15, 2005·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Charles E WoodMaureen Keller-Wood
May 8, 1999·The American Journal of Physiology·J L SegarA T Holley
Dec 22, 1999·The American Journal of Physiology·C E Wood, H Tong
Dec 31, 1997·The American Journal of Physiology·D A GiussaniP W Nathanielsz

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