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
1991
Insulin inhibits apolipoprotein B secretion in isolated human hepatocytes
Salhanick A, Schwartz S, Amatruda J. Insulin inhibits apolipoprotein B secretion in isolated human hepatocytes. Metabolism 1991, 40: 275-279. PMID: 2000040, DOI: 10.1016/0026-0495(91)90109-a.Peer-Reviewed Original ResearchConceptsB secretionApo B secretionHuman hepatocytesApo B contentApolipoprotein B secretionInsulin-dependent inhibitionChronic insulin exposureEffect of insulinPresence of insulinHuman-derived hepatoma cell lineLiver specimensCollagenase dispersionApo BInsulin exposureHepatoma cell lineL insulinSerum-free mediumHuman hepaticInsulinSecretionInsulin controlPrimary culturesCell linesHepatocytesFurther investigation
1988
Insulin-Mimetic Effects of Vanadate in Primary Cultures of Rat Hepatocytes
Jackson T, Salhanick A, Sparks J, Sparks C, Bolognino M, Amatruda J. Insulin-Mimetic Effects of Vanadate in Primary Cultures of Rat Hepatocytes. Diabetes 1988, 37: 1234-1240. PMID: 3044889, DOI: 10.2337/diab.37.9.1234.Peer-Reviewed Original ResearchConceptsApoB secretionIntracellular lipogenesisHepatic apolipoprotein B secretionPrimary culturesApolipoprotein B secretionTermination of actionEffect of insulinMedium accumulationInsulin-mimetic effectsB secretionEffect of vanadatePostreceptor levelInsulin actionRat hepatocytesInsulinIntracellular glycogen accumulationHepatic proteinsSecretionInsulin-mimetic agentsGlycogen accumulationMimics insulin actionApoB.LipogenesisHepatocytesInhibition
1986
Insulin effects on apolipoprotein B lipoprotein synthesis and secretion by primary cultures of rat hepatocytes
Sparks C, Sparks J, Bolognino M, Salhanick A, Strumph P, Amatruda J. Insulin effects on apolipoprotein B lipoprotein synthesis and secretion by primary cultures of rat hepatocytes. Metabolism 1986, 35: 1128-1136. PMID: 3537632, DOI: 10.1016/0026-0495(86)90026-0.Peer-Reviewed Original ResearchConceptsLipoprotein synthesisPostprandial insulin releasePrimary culturesHepatic lipoprotein secretionEffect of insulinApo B secretionLipoprotein metabolic pathwaysAddition of insulinApo B massMonoclonal radioimmunoassayInsulin concentrationsVLDL secretionMedia insulin concentrationsB secretionApolipoprotein BInsulin releaseLipid secretionLipoprotein secretionDensity lipoproteinLipid radioactivityPhysiologic concentrationsRat hepatocytesLipoprotein apoproteinsInsulinInsulin effect
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 receptor
1983
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
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
Insulin-Induced Alterations in Insulin Binding and Insulin Action in Primary Cultures of Rat Hepatocytes
Amatruda J, Newmeyer H, Chang C. Insulin-Induced Alterations in Insulin Binding and Insulin Action in Primary Cultures of Rat Hepatocytes. Diabetes 1982, 31: 145-148. PMID: 6759230, DOI: 10.2337/diab.31.2.145.Peer-Reviewed Original Research
1980
Insulin Receptors in Hepatocytes: Postreceptor Events Mediate Down Regulation
F. J, Amatruda J. Insulin Receptors in Hepatocytes: Postreceptor Events Mediate Down Regulation. Science 1980, 210: 1029-1031. PMID: 7001632, DOI: 10.1126/science.7001632.Peer-Reviewed Original ResearchConceptsInsulin receptorComplex biological responseInteraction of insulinPresence of insulinEffect of insulinBinding sitesBiological responsesSpecific binding sitesRegulationPostreceptor eventsPrimary culturesTarget cellsRat hepatocytesReceptorsNormal numbersCellsInsulin-like activityHepatocytesInsulinInteraction
1975
Insulin Receptor: Role in the Resistance of Human Obesity to Insulin
Amatruda J, Livingston J, Lockwood D. Insulin Receptor: Role in the Resistance of Human Obesity to Insulin. Science 1975, 188: 264-266. PMID: 164059, DOI: 10.1126/science.164059.Peer-Reviewed Original Research
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