AJP - Regu Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Am J Physiol Regul Integr Comp Physiol 259: R745-R752, 1990;
0363-6119/90 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Dickson, K. A.
Right arrow Articles by Harding, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dickson, K. A.
Right arrow Articles by Harding, R.

AJP - Regulatory, Integrative and Comparative Physiology, Vol 259, Issue 4 745-R752, Copyright © 1990 by American Physiological Society

ARTICLES

Endocrine and fluid-balance responses to amniotic and allantoic fluid loss in sheep

K. A. Dickson, S. B. Hooper, I. C. McMillen and R. Harding
Department of Physiology, Monash University, Clayton, Victoria, Australia.

Our aim was to determine fetal and maternal endocrine and fluid-balance responses to prolonged loss of amniotic and allantoic fluids in sheep. In seven sheep, amniotic and allantoic fluids were drained [379.1 +/- 20.1 (SE) ml/day] from 107 to 135.3 +/- 0.6 days of gestation (term: 145 days). The results from these sheep were compared with those from seven control sheep. Maternal water intake, urine production, and urine osmolality were not altered by fluid drainage, nor were fetal and maternal arterial blood gases, pH, or plasma osmolalities. Fluid drainage increased amniotic, but not allantoic, fluid osmolality. Maternal plasma cortisol concentration increased with fluid drainage, but maternal plasma concentrations of prolactin and arginine vasopressin were unchanged. Fluid drainage increased prolactin concentrations in fetal plasma and amniotic fluid, but fetal plasma concentrations of cortisol (hydrocortisone), arginine vasopressin, norepinephrine, and epinephrine were unchanged. Our results show that the fetus is capable of maintaining its plasma osmolality despite prolonged loss of fluid from its amniotic and allantoic sacs and that this is associated with alterations in the production rate and the composition of amniotic fluid.


This article has been cited by other articles:


Home page
 Am. J. Physiol. Renal Physiol.Home page
D. Anderson, Q. Yang, A. Hohimer, J. Faber, G. Giraud, and L. Davis
Intramembranous absorption rate is unaffected by changes in amniotic fluid composition
Am J Physiol Renal Physiol, May 1, 2005; 288(5): F964 - F968.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
J. J. Faber and D. F. Anderson
Absorption of amniotic fluid by amniochorion in sheep
Am J Physiol Heart Circ Physiol, March 1, 2002; 282(3): H850 - H854.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online