2006
Ethnic differences in beta cell adaptation to insulin resistance in obese children and adolescents
Weiss R, Dziura JD, Burgert TS, Taksali SE, Tamborlane WV, Caprio S. Ethnic differences in beta cell adaptation to insulin resistance in obese children and adolescents. Diabetologia 2006, 49: 571-579. PMID: 16456682, DOI: 10.1007/s00125-005-0109-z.Peer-Reviewed Original ResearchConceptsEarly insulin responseObese childrenInsulin resistanceInsulin clearanceInsulin responseAims/hypothesisThe prevalenceObesity-related insulin resistanceOral glucose loadLower insulin clearanceType 2 diabetesAcute insulin responseGlucose tolerance levelsAltered glucose metabolismSevere insulin resistanceBeta-cell adaptationAfrican American subjectsEthnic groupsHypothesisThe prevalenceGlucose toleranceGlucose loadInsulin sensitivityGlucose metabolismMethodsSeven hundredClearanceHispanic origin
2005
Exercise and improved insulin sensitivity in older women: evidence of the enduring benefits of higher intensity training
DiPietro L, Dziura J, Yeckel CW, Neufer PD. Exercise and improved insulin sensitivity in older women: evidence of the enduring benefits of higher intensity training. Journal Of Applied Physiology 2005, 100: 142-149. PMID: 16141382, DOI: 10.1152/japplphysiol.00474.2005.Peer-Reviewed Original ResearchConceptsHigh-intensity exercise trainingIntensity exercise trainingExercise trainingAerobic trainingInsulin sensitivityExercise volumeOlder womenGlucose utilizationModerate-intensity aerobic trainingTwo-step euglycemic-hyperinsulinemic clampInsulin-stimulated glucose utilizationHigh-intensity aerobic trainingDual-energy X-ray absorptiometryHigher insulin doseLower insulin doseHealthy older womenEuglycemic hyperinsulinemic clampLow-intensity exerciseTotal body fatAdipose tissue lipolysisImproved glucose utilizationX-ray absorptiometrySuppression of lipolysisFinal exercise boutInsulin-stimulated suppression
2002
Brain glucose levels are elevated in chronically hyperglycemic diabetic rats: No evidence for protective adaptation by the blood brain barrier
Jacob RJ, Fan X, Evans ML, Dziura J, Sherwin RS. Brain glucose levels are elevated in chronically hyperglycemic diabetic rats: No evidence for protective adaptation by the blood brain barrier. Metabolism 2002, 51: 1522-1524. PMID: 12489061, DOI: 10.1053/meta.2002.36347.Peer-Reviewed Original ResearchConceptsDiabetic ratsBB/Wor diabetic ratsLong-term adverse effectsHyperglycemic diabetic ratsProtective adaptationBlood-brain barrier transferPlasma glucose ratioBlood-brain barrierBeta-hydroxybutyrate levelsBrain glucose levelsECF glucoseAcute hyperglycemiaChronic hyperglycemiaBlood glucoseBrain barrierHyperglycemic groupPeripheral tissuesGlucose levelsBeta-OHBInferior colliculusECF levelsProlonged elevationHyperglycemiaFluid glucoseBrain tissue
1999
Effects of recurrent hypoglycemia on brainstem function in diabetic BB rats: protective adaptation during acute hypoglycemia.
Jacob RJ, Dziura J, Blumberg M, Morgen JP, Sherwin RS. Effects of recurrent hypoglycemia on brainstem function in diabetic BB rats: protective adaptation during acute hypoglycemia. Diabetes 1999, 48: 141-145. PMID: 9892235, DOI: 10.2337/diabetes.48.1.141.Peer-Reviewed Original ResearchConceptsAntecedent recurrent hypoglycemiaRecurrent hypoglycemiaNondiabetic ratsDM ratsInsulin therapyBB ratsDiabetic ratsPlasma glucoseDiabetic BB ratsIntensive insulin therapyRelease of catecholaminesAuditory-evoked potentialsHypoglycemia counterregulationBrainstem dysfunctionDiabetic patientsHypoglycemic stimulusChronic hyperglycemiaAcute hypoglycemiaBrainstem functionAdrenergic responseInferior colliculiHypoglycemiaRatsAdverse effectsProtective adaptation