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SIMULTANEOUS MEASUREMENT OF UTERINE AND UMBILICAL BLOOD FLOWS AND OXYGEN UPTAKES
Abstract
A method is described for the simultaneous estimation of uterine and umbilical blood flows and oxygen uptakes. A test stubstance, antipyrine, was infused at constant rate in the fetal circutlation. About 50 min. after starting the infusion a steady state was attained in which the rate of transplacental diffusion of the test substance was equal, blut for small corrections, to the rate of infusion. During the steady state, blood samples were collected from uterine and umbilical arteries and veins and analyzed for antipyrine and oxygen. Flows and oxygen uptakes were calculated according to Fick's principle. Thie results of sixteen experiments on sheep and goats sh1ow that: (1) transplacental diffusion of antipyrine is mainly flow‐limited, (2) the placenta simulates a concturrent system of exchange, and (3) the oxygen uptakes of the fetus and the utero‐placental mass were, in many cases, of similar magnitude.
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Cited by
RUDOLPH, A. M., & HEYMANN, M. A. (1967) · Circulation Research · doi:10.1161/01.res.21.2.163 · Cited by 1,316
Thorn, S. R., Brown, L. D., Rozance, P. J., Hay, W. W., & Friedman, J. E. (2013) · Diabetes · doi:10.2337/db11-1727 · Cited by 89
Wallace, J. M., Bourke, D. A., Aitken, R. P., Milne, J. S., & Hay, W. W. (2003) · The Journal of Physiology · doi:10.1113/jphysiol.2002.023333 · Cited by 86
Developmental regulation of glucogenesis in the sheep fetus during late gestation
Fowden, A. L., Mundy, L., & the late Silver, M. (1998) · The Journal of Physiology · doi:10.1111/j.1469-7793.1998.937bp.x · Cited by 85
Carver, T. D., & Hay, W. W. (1995) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.1995.269.2.e299 · Cited by 43
Metadata
- Authors
- Meschia, G., Cotter, J. R., Makowski, E. L., & Barron, D. H.
- Venue
- Quarterly Journal of Experimental Physiology and Cognate Medical Sciences
- Publisher
- Wiley
- Published
- 1967-01-22
- Volume
- 52
- Issue
- 1
- Pages
- 1-18
- ISSN
- 0033-5541 (ISSN-L)
- OpenAlex
- W1966609305
- Cited by
- 193
- References
- 0
- FWCI
- 40.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: SIMULTANEOUS MEASUREMENT OF UTERINE AND UMBILICAL BLOOD FLOWS AND OXYGEN UPTAKES. https://app.cochat.ai/papers/10.1113/expphysiol.1967.sp001877
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- Meschia, G., Cotter, J. R., Makowski, E. L., & Barron, D. H. (1967). SIMULTANEOUS MEASUREMENT OF UTERINE AND UMBILICAL BLOOD FLOWS AND OXYGEN UPTAKES. Quarterly Journal of Experimental Physiology and Cognate Medical Sciences. https://doi.org/10.1113/expphysiol.1967.sp001877
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
