Frank H. Morriss

TL;DR: The blood flows to reproductive organs were measured by means of radionuclide-labeled microspheres in 24 pregnant ewes with gestational ages ranging from 38 to 141 days.

TL;DR: Estradiol caused vasodilation in myometrium, endometrium and placental cotyledons throughout pregnancy, but these responses were significantly less than the fifteenfold increase seen in the nonpregnant uterine tissues.

TL;DR: The increased hepatic blood flow and decreased arterial concentrations of glucogenic amino acids observed during fasting are consistent with a redistribution of maternal cardiac output to support maternal hepatic gluconeogenesis at the expense of nutrient supply to the gravid uterus.

TL;DR: Neither acetoacetate nor β-hydroxybutyrate umbilical uptake is used by the sheep fetus as a major fuel of aerobic metabolism, even during maternal starvation.

TL;DR: The growth of uterine oxygen and glucose uptakes (Qo2, Q glucose) throughout pregnancy was determined in sheep with chronically implanted uterine artery electromagnetic flow probes and arterial and uterine venous catheters to indicate that substrates other than glucose are used in large amounts in order to satisfy the requirements of uterusine oxidative metabolism in late pregnancy.