1994
Differential effect of insulin on whole-body proteolysis and glucose metabolism in normal-weight, obese, and reduced-obese women
Welle S, Statt M, Barnard R, Amatruda J. Differential effect of insulin on whole-body proteolysis and glucose metabolism in normal-weight, obese, and reduced-obese women. Metabolism 1994, 43: 441-445. PMID: 8159100, DOI: 10.1016/0026-0495(94)90073-6.Peer-Reviewed Original ResearchConceptsReduced-obese subjectsObese womenLeucine RaInsulin resistanceControl groupNormal weight control groupReduced-obese groupNormal-weight womenNormal-weight subjectsGlucose disposal rateWhole-body proteolysisLean body massWhole body rateObese groupNormal weightHip ratioGlucose disposalDisposal rateIdeal weightObeseInsulinWeight lossWomenDifferential effectsBody mass
1985
Normal hepatic insulin receptor autophosphorylation in nonketotic diabetes mellitus
Amatruda J, Roncone A. Normal hepatic insulin receptor autophosphorylation in nonketotic diabetes mellitus. Biochemical And Biophysical Research Communications 1985, 129: 163-170. PMID: 3890853, DOI: 10.1016/0006-291x(85)91417-2.Peer-Reviewed Original ResearchConceptsHepatic insulin resistanceNonketotic diabetes mellitusInability of insulinDiabetes mellitusInsulin resistanceInsulin receptor autophosphorylationInsulin actionPutative mediatorsStreptozotocin-induced diabetes mellitusReceptor autophosphorylationDose-response relationshipInsulin receptor bindingAbility of insulinMembrane insulin receptorsDiabetic animalsInsulin treatmentInsulin dose-response relationshipInsulin bindingMellitusPlasma membrane insulin receptorsInsulinReceptor bindingInsulin receptorCellular mechanisms in selected states of insulin resistance: Human obesity, glucocorticoid excess, and chronic renal failure
Amatruda J, Livingston J, Lockwood D. Cellular mechanisms in selected states of insulin resistance: Human obesity, glucocorticoid excess, and chronic renal failure. Diabetes/Metabolism Research And Reviews 1985, 1: 293-317. PMID: 3915256, DOI: 10.1002/dmr.5610010304.Peer-Reviewed Original Research
1984
Hepatic insulin resistance in non-insulin-dependent diabetes mellitus and the effects of a sulfonylurea in potentiating insulin action.
Amatruda J, Salhanick A, Chang C. Hepatic insulin resistance in non-insulin-dependent diabetes mellitus and the effects of a sulfonylurea in potentiating insulin action. Diabetes Care 1984, 7 Suppl 1: 47-53. PMID: 6376029.Peer-Reviewed Original ResearchConceptsLiver particulate fractionInsulin resistanceDiabetes mellitusInsulin actionHepatic insulin responsivenessPrimary culturesDependent diabetes mellitusRelease of mediatorsSerum glucose levelsStreptozotocin-diabetic animalsHepatic insulin resistanceEffect of insulinAbility of insulinDiabetic animalsDiabetic stateSerum glucoseInsulin treatmentGlucose levelsVivo treatmentControl animalsHepatic lipogenesisParticulate fractionInsulin responsivenessMellitusInsulin binding
1983
Cellular alterations responsible for insulin resistance in obesity and type II diabetes mellitus
Lockwood D, Amatruda J. Cellular alterations responsible for insulin resistance in obesity and type II diabetes mellitus. The American Journal Of Medicine 1983, 75: 23-31. PMID: 6369965, DOI: 10.1016/0002-9343(83)90250-4.Peer-Reviewed Original ResearchConceptsType II diabetes mellitusInsulin resistanceDiabetes mellitusRelative insulin deficiencyBlood sugar levelsInsulin-resistant statesInsulin deficiencyMetabolic controlResistant stateMellitusSugar levelsCellular alterationsEfficacious methodRecent evidenceObesityPathophysiologyAlterationsNumerous studiesFuture effortsClear understandingProminent featureInsulin resistance in the liver in fasting and diabetes mellitus: The failure of insulin to stimulate the release of a chemical modulator of pyruvate dehydrogenase
Amatruda J, Chang C. Insulin resistance in the liver in fasting and diabetes mellitus: The failure of insulin to stimulate the release of a chemical modulator of pyruvate dehydrogenase. Biochemical And Biophysical Research Communications 1983, 112: 35-41. PMID: 6340685, DOI: 10.1016/0006-291x(83)91793-x.Peer-Reviewed Original ResearchConceptsInsulin resistanceLiver particulate fractionDiabetes mellitusRelease of mediatorsFailure of insulinEffect of insulinAbility of insulinDiabetic animalsInsulin treatmentControl animalsParticulate fractionPyruvate dehydrogenase activityInsulinLiverMellitusFastingDehydrogenase activityAnimalsPyruvate dehydrogenasePotentiation of Insulin Action by a Sulfonylurea in Primary Cultures of Hepatocytes from Normal and Diabetic Rats
Salhanick A, Konowitz P, Amatruda J. Potentiation of Insulin Action by a Sulfonylurea in Primary Cultures of Hepatocytes from Normal and Diabetic Rats. Diabetes 1983, 32: 206-212. PMID: 6337899, DOI: 10.2337/diab.32.3.206.Peer-Reviewed Original ResearchConceptsDiabetic ratsInsulin actionInsulin responsivenessPrimary culturesStreptozotocin-diabetic ratsHepatic insulin resistanceDose-dependent increaseInsulin-dependent actionInsulin-stimulated ratesDependent diabetesDiabetic animalsInsulin resistanceNondiabetic animalsInsulin sensitivityAbsence of insulinInsulin secretionSignificant potentiationNormal ratsChronic exposureSpecific insulinRatsSerum-free mediumInsulinSulfonylurea tolazamideSulfonylureasThe regulation of lipid synthesis in primary cultures of hepatocytes from nonketotic streptozotocin diabetic rats
Amatruda J, Chang C. The regulation of lipid synthesis in primary cultures of hepatocytes from nonketotic streptozotocin diabetic rats. Metabolism 1983, 32: 224-229. PMID: 6402645, DOI: 10.1016/0026-0495(83)90186-5.Peer-Reviewed Original ResearchConceptsDiabetic ratsDiabetic animalsInsulin responsivenessChronic exposurePrimary culturesAcute effectsBasal lipogenesisStreptozotocin-diabetic ratsStreptozotocin-diabetic animalsLipid synthesisNormal control animalsPresence of insulinInsulin resistanceLipogenic responseInsulin administrationNormal ratsControl animalsNormal controlsNormal animalsRatsFasted ratsInsulinAcute responsivenessLipogenesisM insulin
1982
Glucocorticoid-induced Insulin Resistance
F. J, Amatruda J. Glucocorticoid-induced Insulin Resistance. Journal Of Clinical Investigation 1982, 69: 866-875. PMID: 7042756, PMCID: PMC370141, DOI: 10.1172/jci110526.Peer-Reviewed Original ResearchConceptsAbility of insulinControl animalsInsulin bindingInsulin degradationDexamethasone treatmentNormal ratsInsulin receptorInsulin actionAminoisobutyrate uptakeWeight-matched control animalsGlucocorticoid-induced insulin resistancePrimary culturesAdministration of dexamethasoneDexamethasone-treated animalsPresence of hyperinsulinemiaEffect of insulinCellular insulin receptorsDose-response curveHepatocyte insulin receptorsSignificant hyperinsulinemiaInsulin resistanceAbsence of dexamethasoneLess insulinInsulin concentrationsVivo hyperinsulinemia
1980
Insulin action and binding in isolated hepatocytes from fasted, streptozotocin-diabetic, and older, spontaneously obese rats
Cech J, Freeman R, F. J, Amatruda J. Insulin action and binding in isolated hepatocytes from fasted, streptozotocin-diabetic, and older, spontaneously obese rats. Biochemical Journal 1980, 188: 839-845. PMID: 7008780, PMCID: PMC1161968, DOI: 10.1042/bj1880839.Peer-Reviewed Original ResearchConceptsObese ratsInsulin-stimulated uptakeDose-response curveDiabetic animalsInsulin resistanceAminoisobutyrate uptakeDecreased maximal responseStreptozotocin-diabetic ratsBasal rateYoung control animalsYoung control ratsInsulin receptorControl cellsOld obese ratsConcentrations of insulinDose-response relationshipEnhanced basal rateMaximal insulin responsivenessHalf-maximal responseNumber of receptorsIsolated hepatocytesStreptozotocin-diabeticMore insulinControl ratsInsulin response
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