2016
Weight Gain and Metabolic Consequences of Risperidone in Young Children With Autism Spectrum Disorder
Scahill L, Jeon S, Boorin SJ, McDougle CJ, Aman MG, Dziura J, McCracken JT, Caprio S, Arnold LE, Nicol G, Deng Y, Challa SA, Vitiello B. Weight Gain and Metabolic Consequences of Risperidone in Young Children With Autism Spectrum Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 2016, 55: 415-423. PMID: 27126856, PMCID: PMC4851735, DOI: 10.1016/j.jaac.2016.02.016.Peer-Reviewed Original ResearchConceptsWaist circumferenceWeight gainWeek 24Metabolic syndromeWeek 16Homeostatic model assessment-insulin resistanceMetabolic consequencesModel assessment-insulin resistanceBody mass index z-scoreAssessment-insulin resistanceLiver function testsTrial of risperidoneIndex z-scoreAutism spectrum disorderRapid weight gainRisperidone exposureBlood lipidsRisperidone monotherapyRisperidone treatmentFunction testsNormal weightInsulin resistanceAlanine aminotransferaseSpectrum disorderBlood samples
2015
Blunted suppression of acyl‐ghrelin in response to fructose ingestion in obese adolescents: The role of insulin resistance
Van Name M, Giannini C, Santoro N, Jastreboff AM, Kubat J, Li F, Kursawe R, Savoye M, Duran E, Dziura J, Sinha R, Sherwin RS, Cline G, Caprio S. Blunted suppression of acyl‐ghrelin in response to fructose ingestion in obese adolescents: The role of insulin resistance. Obesity 2015, 23: 653-661. PMID: 25645909, PMCID: PMC4548801, DOI: 10.1002/oby.21019.Peer-Reviewed Original ResearchConceptsAcyl ghrelinObese insulinGlucose ingestionInsulin resistanceObese adolescentsCross-over designFructose ingestionGut hormonesChildhood obesityInsulin sensitivityFructose consumptionEffect of glucoseDiminished suppressionRandom orderIngestionObesityPYYAdolescentsInsulinSuppression differencesGlucoseMinutesResponseGhrelinOIR
2014
Reversal of Early Abnormalities in Glucose Metabolism in Obese Youth: Results of an Intensive Lifestyle Randomized Controlled Trial
Savoye M, Caprio S, Dziura J, Camp A, Germain G, Summers C, Li F, Shaw M, Nowicka P, Kursawe R, DePourcq F, Kim G, Tamborlane WV. Reversal of Early Abnormalities in Glucose Metabolism in Obese Youth: Results of an Intensive Lifestyle Randomized Controlled Trial. Diabetes Care 2014, 37: 317-324. PMID: 24062325, PMCID: PMC3898759, DOI: 10.2337/dc13-1571.Peer-Reviewed Original ResearchConceptsStandard of careClinical careBlood glucoseObese adolescentsObese youthOral glucose tolerance test glucoseIntensive lifestyle modificationDiabetes Prevention ProgramStandard clinical careInsulin sensitivity indexHealthy lifestyle programType 2 diabetesRisk of T2DChildhood obesity epidemicΒ-cell dysfunctionLifestyle modificationControlled TrialsOGTT glucosePrimary outcomeGlucose toleranceInsulin resistanceLifestyle programAnthropometric assessmentEarly abnormalitiesGlucose levels
2013
Effects of Fructose vs Glucose on Regional Cerebral Blood Flow in Brain Regions Involved With Appetite and Reward Pathways
Page KA, Chan O, Arora J, Belfort-DeAguiar R, Dzuira J, Roehmholdt B, Cline GW, Naik S, Sinha R, Constable RT, Sherwin RS. Effects of Fructose vs Glucose on Regional Cerebral Blood Flow in Brain Regions Involved With Appetite and Reward Pathways. JAMA 2013, 309: 63-70. PMID: 23280226, PMCID: PMC4076145, DOI: 10.1001/jama.2012.116975.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowCerebral blood flowGlucose ingestionFructose ingestionFructose consumptionBlood flowGlucagon-like polypeptide-1Weight gainRegional CBF changesPrevalence of obesityHigh-fructose dietHealthy adult volunteersLower peak levelsConsumption of fructoseMagnetic resonance imaging sessionPosterior cingulate cortexWhole-brain analysisEffects of fructoseFunctional connectivity analysisSatiety hormonesSecondary outcomesDrink ingestionSystemic glucoseVoxel-level analysisInsulin resistance
2012
Longitudinal Effects of MRI-Measured Hepatic Steatosis on Biomarkers of Glucose Homeostasis and Hepatic Apoptosis in Obese Youth
Kim G, Giannini C, Pierpont B, Feldstein AE, Santoro N, Kursawe R, Shaw M, Duran E, Goldberg R, Dziura J, Caprio S. Longitudinal Effects of MRI-Measured Hepatic Steatosis on Biomarkers of Glucose Homeostasis and Hepatic Apoptosis in Obese Youth. Diabetes Care 2012, 36: 130-136. PMID: 22933439, PMCID: PMC3526202, DOI: 10.2337/dc12-0277.Peer-Reviewed Original ResearchConceptsMagnetic resonance imagingWhole-body insulin sensitivityInsulin sensitivityObese youthHepatic steatosisInsulin resistanceHepatocellular apoptosisGlucose homeostasisOral glucose tolerance testHepatic apoptosisAbdominal magnetic resonance imagingCK-18 levelsFatty liver groupGlucose tolerance testHepatic fat contentLiver groupIndependent predictorsFatty liverDisposition indexTolerance testBlood glucoseMetabolic parametersCK-18Multivariate analysisResonance imagingInsulin resistance is associated with elevated serum pigment epithelium–derived factor (PEDF) levels in morbidly obese patients
Gattu AK, Birkenfeld AL, Jornayvaz F, Dziura J, Li F, Crawford SE, Chu X, Still CD, Gerhard GS, Chung C, Samuel V. Insulin resistance is associated with elevated serum pigment epithelium–derived factor (PEDF) levels in morbidly obese patients. Acta Diabetologica 2012, 49: 161-169. PMID: 22547263, DOI: 10.1007/s00592-012-0397-y.Peer-Reviewed Original ResearchConceptsPigment epithelium-derived factorMorbidly obese patientsPEDF levelsInsulin resistanceDiabetes mellitusHigh glucose mediumObese patientsSerum pigment epithelium-derived factor (PEDF) levelsPigment epithelium-derived factor levelsSerum pigment epithelium-derived factorHomeostasis model assessment scoreCounter-regulatory factorsSerum PEDF concentrationGastric bypass surgeryHuman hepatocytesSignificant risk factorsModel assessment scoreSerum PEDF levelsEpithelium-derived factorPrimary human hepatocytesHOMA scorePEDF concentrationDiabetes medicationsGastric bypassIR patients
2011
Cellular mechanism of insulin resistance in nonalcoholic fatty liver disease
Kumashiro N, Erion DM, Zhang D, Kahn M, Beddow SA, Chu X, Still CD, Gerhard GS, Han X, Dziura J, Petersen KF, Samuel VT, Shulman GI. Cellular mechanism of insulin resistance in nonalcoholic fatty liver disease. Proceedings Of The National Academy Of Sciences Of The United States Of America 2011, 108: 16381-16385. PMID: 21930939, PMCID: PMC3182681, DOI: 10.1073/pnas.1113359108.Peer-Reviewed Original ResearchConceptsNonalcoholic fatty liver diseaseFatty liver diseaseHepatic DAG contentInsulin resistanceHepatic insulin resistanceLiver diseaseHepatic steatosisCellular mechanismsHomeostatic model assessmentInsulin resistance indexMarkers of inflammationType 2 diabetesER stress markersLipid dropletsHepatic diacylglycerol contentEndoplasmic reticulum stressActivation of PKCεLiver biopsyNondiabetic individualsHepatocellular lipidsInsulin sensitivityCytoplasmic lipid dropletsDAG contentResistance indexAnimal modelsLong-term Results of an Obesity Program in an Ethnically Diverse Pediatric Population
Savoye M, Nowicka P, Shaw M, Yu S, Dziura J, Chavent G, O'Malley G, Serrecchia JB, Tamborlane WV, Caprio S. Long-term Results of an Obesity Program in an Ethnically Diverse Pediatric Population. Pediatrics 2011, 127: 402-410. PMID: 21300674, PMCID: PMC3065145, DOI: 10.1542/peds.2010-0697.Peer-Reviewed Original ResearchConceptsControl groupLow-density lipoprotein cholesterolTotal body fat massIntensive lifestyle programIntensive lifestyle interventionHomeostasis model assessmentActive intervention phaseWeight management programBody fat massLong-term resultsBMI z-scorePercent body fatDiverse pediatric populationFamily-based programsLifestyle interventionLipoprotein cholesterolTotal cholesterolObese childrenObese populationPediatric populationInsulin resistanceObesity programLifestyle programFat massIntervention group
2010
Apolipoprotein C3 Gene Variants in Nonalcoholic Fatty Liver Disease
Petersen KF, Dufour S, Hariri A, Nelson-Williams C, Foo JN, Zhang XM, Dziura J, Lifton RP, Shulman GI. Apolipoprotein C3 Gene Variants in Nonalcoholic Fatty Liver Disease. New England Journal Of Medicine 2010, 362: 1082-1089. PMID: 20335584, PMCID: PMC2976042, DOI: 10.1056/nejmoa0907295.Peer-Reviewed Original ResearchConceptsNonalcoholic fatty liver diseaseFatty liver diseasePlasma triglyceride clearanceLiver diseaseFat tolerance testPlasma triglyceride concentrationsInsulin resistanceApolipoprotein C3Wild-type homozygotesIndian menTriglyceride clearanceTriglyceride concentrationsC3 concentrationsTriglyceride contentApolipoprotein C3 gene variantsHealthy Asian Indian menOral fat tolerance testType 2 diabetes mellitusVariant allelesIntravenous fat tolerance testLiver triglyceride contentHepatic triglyceride contentSingle nucleotide polymorphismsVariant allele carriersHepatic insulin resistance
2009
Specific Relation Between Abdominal Obesity and Early-Phase Hyperglycemia Is Modulated by Hepatic Insulin Resistance in Healthy Older Women
DiPietro L, Dziura J, Yeckel CW. Specific Relation Between Abdominal Obesity and Early-Phase Hyperglycemia Is Modulated by Hepatic Insulin Resistance in Healthy Older Women. Diabetes Care 2009, 33: 165-167. PMID: 19808930, PMCID: PMC2797964, DOI: 10.2337/dc09-1365.Peer-Reviewed Original ResearchConceptsHepatic insulin resistanceOral glucose tolerance testAbdominal obesityGlucose tolerance testHealthy older womenInsulin resistanceOlder womenTolerance testLow-dose insulin infusionHepatic glucose productionGlucose excursionsInsulin infusionPlasma glucoseAbdominal circumferenceInsulin concentrationsInsulin suppressionMin postchallengeObesityGlycemic responseClamp techniqueGlucose productionWomenHyperglycemiaProduction suppressionPostchallengeSimple Exercise Recovery Index for Sympathetic Overactivity Is Linked to Insulin Resistance
YECKEL CW, GULANSKI B, ZGORSKI ML, DZIURA J, PARISH R, SHERWIN RS. Simple Exercise Recovery Index for Sympathetic Overactivity Is Linked to Insulin Resistance. Medicine & Science In Sports & Exercise 2009, 41: 505-515. PMID: 19204601, DOI: 10.1249/mss.0b013e31818afa2f.Peer-Reviewed Original ResearchConceptsOral glucose tolerance testSympathetic overactivityInsulin resistancePercent body fatExercise recoveryHR recoveryParasympathetic functionBody fatWhole-body insulin sensitivity indexEffective clinical meansHomeostasis assessment modelRecovery indexMeal-induced thermogenesisGlucose tolerance testInsulin sensitivity indexNovel functional indicesParasympathetic dysfunctionCause mortalitySympathetic dysfunctionSympathetic functionObese adolescentsTolerance testInitial plateau phaseIntense exerciseParasympathetic controlGlucose dysregulation and hepatic steatosis in obese adolescents: Is there a link?
Cali AM, De Oliveira AM, Kim H, Chen S, Reyes‐Mugica M, Escalera S, Dziura J, Taksali SE, Kursawe R, Shaw M, Savoye M, Pierpont B, Constable RT, Caprio S. Glucose dysregulation and hepatic steatosis in obese adolescents: Is there a link? Hepatology 2009, 49: 1896-1903. PMID: 19434725, PMCID: PMC2692562, DOI: 10.1002/hep.22858.Peer-Reviewed Original ResearchConceptsHepatic fat fractionObese adolescentsHepatic fat contentGlucose dysregulationHepatic steatosisMetabolic syndromeFatty liverInsulin sensitivityTotal fatHigher hepatic fat fractionStandard oral glucose tolerance testOral glucose tolerance testTwo-hour plasma glucoseSubcutaneous fat ratioHomeostasis model assessmentAbdominal fat distributionGlucose tolerance testProinflammatory milieuHMW adiponectinIL-6Insulin resistanceMatsuda indexTolerance testPlasma glucoseFat distribution
2008
Sleep-Disordered Breathing in Children With Metabolic Syndrome: The Role of Leptin and Sympathetic Nervous System Activity and the Effect of Continuous Positive Airway Pressure
Nakra N, Bhargava S, Dzuira J, Caprio S, Bazzy-Asaad A. Sleep-Disordered Breathing in Children With Metabolic Syndrome: The Role of Leptin and Sympathetic Nervous System Activity and the Effect of Continuous Positive Airway Pressure. Pediatrics 2008, 122: e634-e642. PMID: 18762497, PMCID: PMC5117807, DOI: 10.1542/peds.2008-0154.Peer-Reviewed Original ResearchConceptsContinuous positive airway pressureSleep-disordered breathingSympathetic nervous system activityPositive airway pressureNervous system activityWhole-body insulin sensitivityMetabolic syndromeAirway pressureLeptin levelsInsulin sensitivitySystem activityExact testContinuous positive airway pressure (CPAP) treatmentPositive airway pressure treatmentC-reactive protein levelsOral glucose tolerance testGlucose tolerance testRole of leptinBMI z-scoreFisher's exact testOvernight polysomnographyBreathing groupMetabolic derangementsInsulin resistanceSleep QuestionnaireAbdominal Obesity in Older Women: Potential Role for Disrupted Fatty Acid Reesterification in Insulin Resistance
Yeckel CW, Dziura J, DiPietro L. Abdominal Obesity in Older Women: Potential Role for Disrupted Fatty Acid Reesterification in Insulin Resistance. The Journal Of Clinical Endocrinology & Metabolism 2008, 93: 1285-1291. PMID: 18198225, PMCID: PMC2291490, DOI: 10.1210/jc.2007-1875.Peer-Reviewed Original ResearchConceptsFatty acid reesterificationPeripheral insulin resistanceAbdominal obesityInsulin resistanceHepatic glucose productionAbdominal adiposityOlder womenGlucose utilizationGeneral Clinical Research CenterBasal hepatic glucose productionGlucose productionFree fatty acid metabolismExcess abdominal adiposityPerturbed glucose metabolismGlucose-lowering medicationsHormone replacement therapyClinical Research CenterPeripheral glucose utilizationGlycerol appearance rateInactive older womenTotal body fatCross-sectional studyAbdominal circumference valuesInsulin-stimulated suppressionFree fatty acid ratio
2007
High Visceral and Low Abdominal Subcutaneous Fat Stores in the Obese Adolescent A Determinant of an Adverse Metabolic Phenotype
Taksali SE, Caprio S, Dziura J, Dufour S, Calí A, Goodman TR, Papademetris X, Burgert TS, Pierpont BM, Savoye M, Shaw M, Seyal AA, Weiss R. High Visceral and Low Abdominal Subcutaneous Fat Stores in the Obese Adolescent A Determinant of an Adverse Metabolic Phenotype. Diabetes 2007, 57: 367-371. PMID: 17977954, DOI: 10.2337/db07-0932.Peer-Reviewed Original ResearchConceptsMetabolic syndromeObese adolescentsInsulin resistanceVisceral fatSubcutaneous fatAdverse metabolic phenotypeC-reactive proteinSevere metabolic complicationsAbdominal subcutaneous fatBMI z-scoreProton magnetic resonance spectroscopyMulti-ethnic cohortFat-free massSubcutaneous fat depotsMagnetic resonance imagingSubcutaneous fat storesMetabolic complicationsTotal adiponectinHepatic fatLiver fatTriglyceride levelsInterleukin-6Visceral depotsOdds ratioC-peptideEffects of a Weight Management Program on Body Composition and Metabolic Parameters in Overweight Children: A Randomized Controlled Trial
Savoye M, Shaw M, Dziura J, Tamborlane WV, Rose P, Guandalini C, Goldberg-Gell R, Burgert TS, Cali AM, Weiss R, Caprio S. Effects of a Weight Management Program on Body Composition and Metabolic Parameters in Overweight Children: A Randomized Controlled Trial. JAMA 2007, 297: 2697-2704. PMID: 17595270, DOI: 10.1001/jama.297.24.2697.Peer-Reviewed Original ResearchConceptsWeight management programWeight management groupOverweight childrenMetabolic complicationsInsulin resistanceBody fatBody compositionControl groupArray of comorbiditiesMost overweight childrenSix-month improvementsHomeostasis model assessmentPediatric obesity clinicSerious metabolic complicationWeight management counselingType 2 diabetesMajor health issueFamily-based programsMixed ethnic groupsMonths of studyHOMA-IRObesity clinicOverweight adultsControlled TrialsPediatric obesityInterethnic Differences in Muscle, Liver and Abdominal Fat Partitioning in Obese Adolescents
Liska D, Dufour S, Zern TL, Taksali S, Calí AM, Dziura J, Shulman GI, Pierpont BM, Caprio S. Interethnic Differences in Muscle, Liver and Abdominal Fat Partitioning in Obese Adolescents. PLOS ONE 2007, 2: e569. PMID: 17593968, PMCID: PMC1892806, DOI: 10.1371/journal.pone.0000569.Peer-Reviewed Original ResearchConceptsMagnetic resonance imagingLiver fat contentHepatic fat contentInsulin resistanceObese adolescentsAfrican AmericansOral glucose tolerance testingObese Hispanic adolescentsAbdominal fat distributionGlucose tolerance testingType 2 diabetesTotal body fatEthnic differencesClear ethnic differencesVisceral fatInsulin sensitivityFat distributionTolerance testingIMCL levelsMultiethnic cohortObese youthFat contentAbdominal cavityBody fatSoleus muscle
2006
Increased prevalence of insulin resistance and nonalcoholic fatty liver disease in Asian-Indian men
Petersen KF, Dufour S, Feng J, Befroy D, Dziura J, Man C, Cobelli C, Shulman GI. Increased prevalence of insulin resistance and nonalcoholic fatty liver disease in Asian-Indian men. Proceedings Of The National Academy Of Sciences Of The United States Of America 2006, 103: 18273-18277. PMID: 17114290, PMCID: PMC1693873, DOI: 10.1073/pnas.0608537103.Peer-Reviewed Original ResearchConceptsAsian Indian menInsulin resistanceInsulin sensitivity indexLiver diseaseNonalcoholic fatty liver diseaseOral glucose tolerance testType 2 diabetes mellitusAsian IndiansWhole-body insulin sensitivityFatty liver diseaseIL-6 concentrationsTreatment of T2DMIntramyocellular lipid contentGlucose tolerance testPathogenesis of T2DMProton magnetic resonance spectroscopyImportant therapeutic implicationsEthnic groupsDiabetes mellitusImportant ethnic differencesCaucasian manTolerance testInsulin sensitivityIntramyocellular lipidsLean individualsAdiponectin in Childhood and Adolescent Obesity and Its Association with Inflammatory Markers and Components of the Metabolic Syndrome
Winer JC, Zern TL, Taksali SE, Dziura J, Cali AM, Wollschlager M, Seyal AA, Weiss R, Burgert TS, Caprio S. Adiponectin in Childhood and Adolescent Obesity and Its Association with Inflammatory Markers and Components of the Metabolic Syndrome. The Journal Of Clinical Endocrinology & Metabolism 2006, 91: 4415-4423. PMID: 16926246, DOI: 10.1210/jc.2006-0733.Peer-Reviewed Original ResearchConceptsC-reactive proteinAdiponectin levelsMetabolic syndromeObese childrenInsulin resistanceChildhood obesityLow high-density lipoprotein cholesterolStandard oral glucose tolerance testBody mass index z-scoreHigh-density lipoprotein cholesterolOral glucose tolerance testHigher CRP levelsChronic inflammatory stateMarkers of inflammationPlasma lipid profileGlucose tolerance testIndex z-scorePotential confounding variablesCRP levelsInflammatory markersLipoprotein ratioHigh triglyceridesLipoprotein cholesterolInflammatory stateProinflammatory cytokinesAlanine Aminotransferase Levels and Fatty Liver in Childhood Obesity: Associations with Insulin Resistance, Adiponectin, and Visceral Fat
Burgert TS, Taksali SE, Dziura J, Goodman TR, Yeckel CW, Papademetris X, Constable RT, Weiss R, Tamborlane WV, Savoye M, Seyal AA, Caprio S. Alanine Aminotransferase Levels and Fatty Liver in Childhood Obesity: Associations with Insulin Resistance, Adiponectin, and Visceral Fat. The Journal Of Clinical Endocrinology & Metabolism 2006, 91: 4287-4294. PMID: 16912127, DOI: 10.1210/jc.2006-1010.Peer-Reviewed Original ResearchConceptsIntrahepatic fat accumulationAlanine aminotransferase levelsHepatic fat fractionVisceral fatInsulin sensitivityMagnetic resonance imagingFat accumulationAminotransferase levelsMetabolic syndromeFatty liverInsulin resistanceChildhood obesityResonance imagingLipid metabolismNonalcoholic fatty liver diseaseHispanic race/ethnicityAbdominal fat partitioningSerum aminotransferase elevationFatty liver diseaseBiomarkers of inflammationHepatic fat accumulationReduced insulin sensitivityFat fractionRace/ethnicityAminotransferase elevation