1996
IGF-I stimulation of muscle protein synthesis in the awake rat: permissive role of insulin and amino acids
Jacob R, Hu X, Niederstock D, Hasan S, McNulty PH, Sherwin RS, Young LH. IGF-I stimulation of muscle protein synthesis in the awake rat: permissive role of insulin and amino acids. American Journal Of Physiology 1996, 270: e60-e66. PMID: 8772474, DOI: 10.1152/ajpendo.1996.270.1.e60.Peer-Reviewed Original ResearchConceptsMuscle protein synthesisInsulin replacementPlasma insulinAwake ratsInsulin-like growth factor ICapacity of IGFIGF-I infusionInfusion of IGFAction of IGFSaline control valuesGrowth factor IIGF-I stimulationProtein synthesisIntravenous infusionPlasma concentrationsInsulin concentrationsAmino acid concentrationsIGFPermissive roleInfusionFactor IControl valuesInsulinRatsAmino acids
1995
Hyperinsulinemia inhibits myocardial protein degradation in patients with cardiovascular disease and insulin resistance.
McNulty P, Louard R, Deckelbaum L, Zaret B, Young L. Hyperinsulinemia inhibits myocardial protein degradation in patients with cardiovascular disease and insulin resistance. Circulation 1995, 92: 2151-6. PMID: 7554195, DOI: 10.1161/01.cir.92.8.2151.Peer-Reviewed Original ResearchConceptsMyocardial protein degradationInsulin infusionCardiovascular diseaseMyocardial protein synthesisInsulin resistancePhenylalanine balanceMyocardial hypertrophyWhole-body glucose metabolismCoronary artery diseaseIschemic heart diseasePlasma insulin concentrationNet phenylalanine balanceWhole-body carbohydrate metabolismEffect of insulinMyocardial protein metabolismArtery diseaseAcute hyperinsulinemiaProtein synthesisHeart diseaseInsulin concentrationsPlasma concentrationsAntiproteolytic actionHyperinsulinemiaGlucose metabolismConstant infusion
1994
Effect of insulin on rat heart and skeletal muscle phenylalanyl-tRNA labeling and protein synthesis in vivo
Young LH, Stirewalt W, McNulty PH, Revkin JH, Barrett EJ. Effect of insulin on rat heart and skeletal muscle phenylalanyl-tRNA labeling and protein synthesis in vivo. American Journal Of Physiology 1994, 267: e337-e342. PMID: 8074214, DOI: 10.1152/ajpendo.1994.267.2.e337.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsInsulinMaleMuscle ProteinsMusclesMyocardiumPhenylalanineRatsRats, Sprague-DawleyRNA, TransferConceptsMuscle protein synthesisAcid-soluble poolFemoral venous plasmaSkeletal muscleSkeletal muscle protein synthesisEffect of insulinMuscle protein hydrolysateProtein synthesisContinuous infusionVenous plasmaHyperinsulinemic clampSaline infusionAnesthetized ratsArterial plasmaRat heartInsulin effectInsulinHormonal regulationHeartInfusionMuscleSpecific activityMinVivo measurementsLabeling
1993
Response of rat heart and skeletal muscle protein in vivo to insulin and amino acid infusion
McNulty PH, Young LH, Barrett EJ. Response of rat heart and skeletal muscle protein in vivo to insulin and amino acid infusion. American Journal Of Physiology 1993, 264: e958-e965. PMID: 8333520, DOI: 10.1152/ajpendo.1993.264.6.e958.Peer-Reviewed Original ResearchConceptsAmino acid infusionMuscle protein synthesisContinuous infusionAcid infusionNet muscle protein synthesisSaline-treated ratsSkeletal muscle protein synthesisInfusion of insulinPlasma specific activitySkeletal muscle proteinsProtein synthesisAmino acid solutionMature ratsInfusionRat heartInsulinBolusTracer infusionHeart muscleSkeletal muscleTracer infusion methodRatsPhysiological concentrationsAmino acids
1992
Physiological hyperinsulinemia inhibits myocardial protein degradation in vivo in the canine heart.
Young LH, Dahl DM, Rauner D, Barrett EJ. Physiological hyperinsulinemia inhibits myocardial protein degradation in vivo in the canine heart. Circulation Research 1992, 71: 393-400. PMID: 1628395, DOI: 10.1161/01.res.71.2.393.Peer-Reviewed Original ResearchConceptsMyocardial protein degradationProtein degradationProtein synthesisMyocardial protein turnoverAmino acid replacementsAcid replacementsProtein turnoverEssential amino acidsAmino acidsPhenylalanine balanceAmino acid concentrationsNet myocardial releaseSpecific activityPhenylalanineVivoDegradationAnimalsBasal rateIsotopic steady statePhysiological hyperinsulinemiaTurnover
1990
In vivo measurement of myocardial protein turnover using an indicator dilution technique.
Revkin JH, Young LH, Stirewalt WS, Dahl DM, Gelfand RA, Zaret BL, Barrett EJ. In vivo measurement of myocardial protein turnover using an indicator dilution technique. Circulation Research 1990, 67: 902-912. PMID: 2208613, DOI: 10.1161/01.res.67.4.902.Peer-Reviewed Original Research
1987
An isotopic method for measurement of muscle protein synthesis and degradation in vivo
Barrett EJ, Revkin JH, Young LH, Zaret BL, Jacob R, Gelfand RA. An isotopic method for measurement of muscle protein synthesis and degradation in vivo. Biochemical Journal 1987, 245: 223-228. PMID: 3663148, PMCID: PMC1148103, DOI: 10.1042/bj2450223.Peer-Reviewed Original ResearchMeSH KeywordsAmino AcidsAnimalsArteriesDogsFemaleFemoral VeinLeucineMaleMuscle ProteinsPhenylalanineTritiumConceptsNet amino acid releaseFemoral venous plasmaTissue blood flowAmino acid releaseMuscle protein synthesisHindlimb flowTissue protein degradationSpecific radioactivityContinuous infusionUptake of leucineMuscle bedArterial circulationClinical studiesPlasma concentrationsDog hindlimbBlood flowProtein synthesisAcid releaseHindlimbProtein turnoverTissue proteinsPhenylalanine incorporationRemoval of tracerMuscle tissueDogs