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An evaluation of fetal glucogenesis in intrauterine growth-retarded pregnancies. 1993

A M Marconi, and I Cetin, and E Davoli, and A M Baggiani, and R Fanelli, and P V Fennessey, and F C Battaglia, and G Pardi
Department of Obstetrics and Gynecology, San Paolo Institute of Biomedical Sciences, University of Milano, Italy.

The presence of fetal glucogenesis was evaluated in nine patients with pregnancies complicated by intrauterine growth retardation (IUGR) at the time of fetal blood sampling (FBS) between 29 and 35 weeks of pregnancy. Eight were singleton pregnancies and one was a twin pregnancy in which blood samples were obtained from both twins. A maternal primed-constant infusion of D(U-13C]glucose was performed, and the presence of fetal glucogenesis was assessed by a comparison of steady-state maternal and fetal glucose enrichments. No significant difference was present between maternal and fetal molar percent excess ([MPE] P = .97), and the mean fetal to maternal (F/M) MPE ratio (0.99 +/- 0.01) was not significantly different from 1 (P = .76). F/M MPE ratio was independent of the time of FBS and umbilical venous glucose and lactate concentrations. Thus fetal glucogenesis is not demonstrable in a group of fairly severe growth-retarded fetuses after an overnight fast with this relatively noninvasive approach.

UI MeSH Term Description Entries
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D001786 Blood Glucose Glucose in blood. Blood Sugar,Glucose, Blood,Sugar, Blood
D005260 Female Females
D005312 Fetal Blood Blood of the fetus. Exchange of nutrients and waste between the fetal and maternal blood occurs via the PLACENTA. The cord blood is blood contained in the umbilical vessels (UMBILICAL CORD) at the time of delivery. Cord Blood,Umbilical Cord Blood,Blood, Cord,Blood, Fetal,Blood, Umbilical Cord,Bloods, Cord,Bloods, Fetal,Bloods, Umbilical Cord,Cord Blood, Umbilical,Cord Bloods,Cord Bloods, Umbilical,Fetal Bloods,Umbilical Cord Bloods
D005317 Fetal Growth Retardation Failure of a FETUS to attain expected GROWTH. Growth Retardation, Intrauterine,Intrauterine Growth Retardation,Fetal Growth Restriction,Intrauterine Growth Restriction
D005333 Fetus The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN. Fetal Structures,Fetal Tissue,Fetuses,Mummified Fetus,Retained Fetus,Fetal Structure,Fetal Tissues,Fetus, Mummified,Fetus, Retained,Structure, Fetal,Structures, Fetal,Tissue, Fetal,Tissues, Fetal
D005943 Gluconeogenesis Biosynthesis of GLUCOSE from nonhexose or non-carbohydrate precursors, such as LACTATE; PYRUVATE; ALANINE; and GLYCEROL.
D006340 Heart Rate, Fetal The heart rate of the FETUS. The normal range at term is between 120 and 160 beats per minute. Fetal Heart Rate,Fetal Heart Rates,Heart Rates, Fetal,Rate, Fetal Heart,Rates, Fetal Heart
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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