The influence of intra-uterine surgery and of fetal intravenous nutritional supplements ‘in utero’ on plasma free amino acid homeostasis in the pregnant ewe

Young, Maureen; Soltész, Gyula; Noakes, David L. G.; Joyce, Jenny; McFadyen, I. R.; Lewis, B. V.

doi:10.1515/jpme.1975.3.3.180

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1977

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Cited by 9 publications

(2 citation statements)

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“…This again suggests that during hysterotomy, impaired transfer occurs, most probably due to placental and fetal separation prior to sampling. It is also noteworthy that our data confirm substantial differences in the profiles of the concentrations of AA between the human and sheep fetus (8,13).…”

Section: Discussionsupporting

confidence: 81%

The Metabolic and Endocrine Milieu of the Human Fetus and Mother at 18-21 Weeks of Gestation. I. Plasma Amino Acid Concentrations

et al. 1985

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Section: Discussionsupporting

confidence: 81%

The Metabolic and Endocrine Milieu of the Human Fetus and Mother at 18-21 Weeks of Gestation. I. Plasma Amino Acid Concentrations

et al. 1985

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“…whether an acute preparation or a chronic preparation is indicated. Young et al (17) have described changes in plasma free amino acids in the pregnant ewe after uterine surgery. Gresham et al (9) have shown that mean fetal-maternal arterial urea concentration differences do not return to a steady state until approximately 4 days after surgery.…”

Section: Discussionmentioning

confidence: 99%

Effect of Acute Nonsurgical Stress on Fetal and Maternal Plasma Glucose, Glucagon and Insulin Concentration in Sheep

Schreiner¹,

Lemons²,

Gresham³

et al. 1981

Neonatology

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The purpose of this study was to investigate the effect of nonsurgical stress on plasma glucose, insulin and glucagon in the ewe and fetus. Plasma glucose, insulin and glucagon were measured before and after a 2 min period of verbal and physical startling of much greater magnitude than that to which the ewe is exposed during routine blood drawing. Studies were completed on 5 fed ewes, 5 fasted ewes and on 4 fetuses of fasted ewes. There were no significant differences after startling compared to the control values. Thus, there appears no need to allow the ewe a prolonged period (more than 1–2 weeks) to become accustomed to handling by humans before chronic metabolic studies involving serum glucose, insulin and glucagon are undertaken.

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Nutritional Supplementation of the Growth-Retarded Fetus

Charlton

1986

Advances in Perinatal Medicine

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The influence of intra-uterine surgery and of fetal intravenous nutritional supplements ‘in utero’ on plasma free amino acid homeostasis in the pregnant ewe

Cited by 9 publications

References 20 publications

The Metabolic and Endocrine Milieu of the Human Fetus and Mother at 18-21 Weeks of Gestation. I. Plasma Amino Acid Concentrations

The Metabolic and Endocrine Milieu of the Human Fetus and Mother at 18-21 Weeks of Gestation. I. Plasma Amino Acid Concentrations

Effect of Acute Nonsurgical Stress on Fetal and Maternal Plasma Glucose, Glucagon and Insulin Concentration in Sheep

Nutritional Supplementation of the Growth-Retarded Fetus

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