1987
Thresholds for physiological effects of plasma catecholamines in fetal sheep
Padbury J, Ludlow J, Ervin M, Jacobs H, Humme J. Thresholds for physiological effects of plasma catecholamines in fetal sheep. American Journal Of Physiology 1987, 252: e530-e537. PMID: 3565562, DOI: 10.1152/ajpendo.1987.252.4.e530.Peer-Reviewed Original ResearchConceptsBlood pressurePlasma concentrationsFetal sheepPg/Plasma free fatty acidsDiastolic blood pressureSystolic blood pressurePlasma catecholamine levelsFull-term animalsInfusion of norepinephrineMinimum plasma concentrationDose-response curvePlasma catecholamine valuesInfused norepinephrineHigher peak responsesNeonatal adaptationCatecholamine levelsPlasma catecholaminesPreterm animalsFree fatty acidsGlucose levelsE concentrationsCatecholamine valuesNorepinephrineMarked increase
1986
Left ventricular performance and contractility before and after volume infusion: a comparative study of preterm and full-term newborn lambs.
Baylen B, Ogata H, Ikegami M, Jacobs H, Jobe A, Emmanouilides G. Left ventricular performance and contractility before and after volume infusion: a comparative study of preterm and full-term newborn lambs. Circulation 1986, 73: 1042-1049. PMID: 3754496, DOI: 10.1161/01.cir.73.5.1042.Peer-Reviewed Original ResearchConceptsFull-term lambsLeft ventricular performanceVolume infusionPreterm lambsVentricular performanceStroke workLeft ventricular peak dP/dtLeft ventricleVentricular peak dP/dtLeft ventricular end-diastolic volumeFull-term newborn lambsVentricular end-diastolic volumeLeft ventricular stroke workPeak dP/dtGreater stroke workPostnatal circulatory adaptationSystemic vascular resistanceVentricular stroke workFull-term animalsDays gestational ageEnd-diastolic volumeLeft ventricular pressureDP/dtVascular resistancePulmonary function