1996
Time course of the defective α-cell response to hypoglycemia in diabetic BB rats
Jacob R, Dziura J, Morgen J, Shulman G, Sherwin R. Time course of the defective α-cell response to hypoglycemia in diabetic BB rats. Metabolism 1996, 45: 1422-1426. PMID: 8931649, DOI: 10.1016/s0026-0495(96)90125-0.Peer-Reviewed Original ResearchConceptsInsulin-dependent diabetes mellitusDays of diabetesBB ratsBB/Wor ratsNondiabetic BB ratsΑ-cell responseDiabetic BB ratsCourse of diabetesPancreatic glucagon levelsPancreatic glucagon contentBeta-cell functionPancreatic insulin contentHypoglycemic challengeCounterregulatory responsesDiabetes onsetDiabetes mellitusGlucagon levelsGlucagon releasePlasma glucagonGlucagon concentrationsInsulin clampGlucagon contentBaseline plasmaDisease onsetGroup 2
1995
Contribution of Hepatic Glycogenolysis to Glucose Production in Humans in Response to a Physiological Increase in Plasma Glucagon Concentration
Magnusson I, Rothman D, Gerard D, Katz L, Shulman G. Contribution of Hepatic Glycogenolysis to Glucose Production in Humans in Response to a Physiological Increase in Plasma Glucagon Concentration. Diabetes 1995, 44: 185-189. PMID: 7859939, DOI: 10.2337/diab.44.2.185.Peer-Reviewed Original ResearchConceptsNet hepatic glycogenolysisLiver glycogen concentrationPlasma glucagon concentrationsHepatic glycogenolysisGlucagon concentrationsGlycogen concentrationLiver volumeGlucose productionPlasma glucose concentrationOverall glucose productionTwo-compartment modelHealthy subjectsPhysiological incrementsPhysiological increaseGlucose appearanceSame time periodMagnetic resonance imagesGlucose kineticsBaseline RaInfusionGlycogenolysisGlucose concentrationResonance imagesMumolLocal Ventromedial Hypothalamus Glucopenia Triggers Counterregulatory Hormone Release
Borg W, Sherwin R, During M, Borg M, Shulman G. Local Ventromedial Hypothalamus Glucopenia Triggers Counterregulatory Hormone Release. Diabetes 1995, 44: 180-184. PMID: 7859938, DOI: 10.2337/diab.44.2.180.Peer-Reviewed Original ResearchConceptsVentromedial hypothalamusFrontal lobeMicrodialysis probeCounterregulatory hormone releaseCellular glucopeniaCounterregulatory hormonesCounterregulatory responsesPlasma glucagonPlasma glucoseLocal perfusionHormone releaseCerebral tissueStriking elevationControl groupGlucopeniaBrain tissueGlucopenic agentHypoglycemiaRatsTwofold increaseLobeTissueNorepinephrineHypothalamusEpinephrine