Journal ArticleDOI
Maternal-fetal urea concentration difference in man: Metabolic significance
TLDR
The direction of a positive concentration difference for urea across the placenta is important, not only qualitatively in determining the pathway for excretion of urea produced by the fetus, but also quantitatively.About:
This article is published in The Journal of Pediatrics.The article was published on 1971-11-01. It has received 69 citations till now. The article focuses on the topics: Urea & Excretion.read more
Citations
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Journal ArticleDOI
Principal substrates of fetal metabolism.
Journal ArticleDOI
Amino acid administration to premature infants directly after birth.
Frans W.J. te Braake,Chris H.P. van den Akker,Darcos J L Wattimena,J. G. M. Huijmans,Johannes B. van Goudoever +4 more
TL;DR: High-dose AA administration to very low birth weight infants can be introduced safely from birth onward and results in an anabolic state.
Journal ArticleDOI
Imbilical amino acid concentrations in appropriate and small for gestational age infants: a biochemical difference present in utero
Irene Cetin,Irene Cetin,Anna M. Marconi,Anna M. Marconi,Patrizia Bozzetti,Patrizia Bozzetti,Lucia Piceni Sereni,Lucia Piceni Sereni,Carlo Corbetta,Carlo Corbetta,G. Pardi,G. Pardi,Frederick C. Battaglia,Frederick C. Battaglia +13 more
TL;DR: The data obtained by transabdominal cord sampling from relatively undisturbed fetuses were in agreement with the data obtained at cesarean section; this information suggests that these differences between small for gestational age and appropriate for Gestational age infants reflected steady-state conditions.
Journal ArticleDOI
Placental transport and metabolism of amino acids.
TL;DR: The data which illustrate the interconversion and nitrogen exchange of three groups of amino acids, glutamine-glutamate, BCAAs and serine-glycine, within the Placenta are discussed in terms of the potential role such pathways may serve for other placenta functions.
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Maternal cocaine use and cigarette smoking in pregnancy in relation to amino acid transport and fetal growth.
TL;DR: More work is needed to be done to understand the potential additive or synergistic effect of cocaine and cigarette smoking on fetal growth and to determine the underlying cellular mechanisms of interaction with placental amino acid transporters.
References
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Theoretical and experimental study of transplacental diffusion.
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A-V differences of free fatty acids and glycerol in the ovine umbilical circulation.
TL;DR: Measurements of venous-arterial differences across the umbilical circulation of the sheep fetus in utero and across the maternal uterine circulation in the chronic animal preparation shows no significant passage of free fatty acids to the fetus.