2020
Refractive Error and Retinopathy Outcomes in Type 1 Diabetes The Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Study
Hainsworth DP, Gao X, Bebu I, Das A, de Koo L, Barkmeier AJ, Tamborlane W, Lachin JM, Aiello LP, Group D. Refractive Error and Retinopathy Outcomes in Type 1 Diabetes The Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Study. Ophthalmology 2020, 128: 554-560. PMID: 32941962, PMCID: PMC7956062, DOI: 10.1016/j.ophtha.2020.09.014.Peer-Reviewed Original ResearchConceptsDiabetic macular edemaDiabetic retinopathyRefractive errorProliferative DRMacular edemaDiabetes controlDiabetes InterventionsRisk factorsUnadjusted modelsComplications Trial/EpidemiologyStages of DRCox proportional hazards modelDCCT treatment groupEDIC years 4Refractive error statusStandard fundus photographsAlbumin excretion rateDuration of diabetesIndependent risk factorDCCT/EDICDiastolic blood pressureSignificant macular edemaProliferative diabetic retinopathyPotential risk factorsProportional hazards modelEffect of Exercise and Meals on Continuous Glucose Monitor Data in Healthy Individuals Without Diabetes
DuBose SN, Li Z, Sherr JL, Beck RW, Tamborlane WV, Shah VN. Effect of Exercise and Meals on Continuous Glucose Monitor Data in Healthy Individuals Without Diabetes. Journal Of Diabetes Science And Technology 2020, 15: 593-599. PMID: 32064911, PMCID: PMC8120054, DOI: 10.1177/1932296820905904.Peer-Reviewed Original ResearchConceptsEffects of exerciseSensor glucose levelsHealthy individualsResistance exerciseNadir glucoseGlucose levelsNonobese body mass indexT1D Exchange Clinic NetworkPeak postprandial glucoseBody mass indexGlucose concentrationTime of mealsNadir glucose concentrationsConsumption of alcoholMass indexPostprandial glucoseNonexercise dayAerobic exerciseExercise dayClinic networkMean changeFuture therapiesDiabetesDexcom G6Glucose monitor data
2019
Biologic and social factors predict incident kidney disease in type 1 diabetes: Results from the T1D exchange clinic network
McGill JB, Wu M, Pop-Busui R, Mizokami-Stout K, Tamborlane WV, Aleppo G, Gubitosi-Klug RA, Haller MJ, Willi SM, Foster NC, Zimmerman C, Libman I, Polsky S, Rickels MR. Biologic and social factors predict incident kidney disease in type 1 diabetes: Results from the T1D exchange clinic network. Journal Of Diabetes And Its Complications 2019, 33: 107400. PMID: 31279735, DOI: 10.1016/j.jdiacomp.2019.06.005.Peer-Reviewed Original ResearchConceptsAdverse kidney outcomesDiabetic kidney diseaseKidney outcomesType 1 diabetesKidney diseaseRisk factorsRisk of DKDDevelopment of DKDT1D Exchange Clinic NetworkAlbumin/creatinine ratioIncident kidney diseaseBlood pressure controlModifiable risk factorsT1D Exchange RegistryUrine albumin measurementsLow education levelModern clinical practiceEGFR declineIncident albuminuriaT1D durationBaseline characteristicsSerum creatinineCreatinine ratioMajor complicationsHigher HbA1cEffect of Injection Site Cooling and Warming on Insulin Glargine Pharmacokinetics and Pharmacodynamics
Bitton G, Rom V, Hadelsberg U, Raz I, Cengiz E, Weinzimer S, Tamborlane WV. Effect of Injection Site Cooling and Warming on Insulin Glargine Pharmacokinetics and Pharmacodynamics. Journal Of Diabetes Science And Technology 2019, 13: 1123-1128. PMID: 31067999, PMCID: PMC6835184, DOI: 10.1177/1932296819842151.Peer-Reviewed Original ResearchConceptsInjection siteGlucose levelsSerum glucoseSubcutaneous depotMultiple daily insulin injectionsOvernight glucose levelsDaily insulin injectionsBlood glucose controlType 1 diabetesSensor glucose levelsInsulin infusion rateDL increaseInsulin glargineSerum insulinGlucose controlMDI therapyInsulin injectionsInsulin concentrationsPharmacodynamic studiesInfusion rateSkin warmingSeparate daysControl dayRate of absorptionRandom orderContinuous Glucose Monitoring Profiles in Healthy Nondiabetic Participants: A Multicenter Prospective Study
Shah VN, DuBose SN, Li Z, Beck RW, Peters AL, Weinstock RS, Kruger D, Tansey M, Sparling D, Woerner S, Vendrame F, Bergenstal R, Tamborlane WV, Watson SE, Sherr J. Continuous Glucose Monitoring Profiles in Healthy Nondiabetic Participants: A Multicenter Prospective Study. The Journal Of Clinical Endocrinology & Metabolism 2019, 104: 4356-4364. PMID: 31127824, PMCID: PMC7296129, DOI: 10.1210/jc.2018-02763.Peer-Reviewed Original ResearchConceptsContinuous glucose monitoringMedian timeAge groupsProspective studyNondiabetic individualsGlucose levelsAverage glucoseNonobese body mass indexT1D Exchange Clinic NetworkContinuous glucose monitoring (CGM) profilesInsulin-requiring patientsMulticenter prospective studyBody mass indexDifferent age groupsNondiabetic childrenNondiabetic populationGlycemic profileMass indexNondiabetic participantsGlycemic variabilityMean glucoseClinic networkCGM metricsGlycemic metricsGlucose monitoringState of Type 1 Diabetes Management and Outcomes from the T1D Exchange in 2016–2018
Foster NC, Beck RW, Miller KM, Clements MA, Rickels MR, DiMeglio LA, Maahs DM, Tamborlane WV, Bergenstal R, Smith E, Olson BA, Garg SK. State of Type 1 Diabetes Management and Outcomes from the T1D Exchange in 2016–2018. Diabetes Technology & Therapeutics 2019, 21: 66-72. PMID: 30657336, PMCID: PMC7061293, DOI: 10.1089/dia.2018.0384.Peer-Reviewed Original ResearchConceptsContinuous glucose monitoringT1D Exchange RegistryRegistry participantsDiabetes managementHigher mean HbA1cType 1 diabetesType 1 diabetes managementMinority of adultsProfile of adultsHbA1c goalDiabetic ketoacidosisMean HbA1cSevere hypoglycemiaClinical outcomesT1D ExchangeT1D managementAge 30Longitudinal changesADA goalsAge 28Age 15Glucose monitoringYoung adultsCGM usersRacial differences
2018
Substance Use in Adults With Type 1 Diabetes in the T1D Exchange
Petry NM, Foster NC, Cengiz E, Tamborlane WV, Wagner J, Polsky S. Substance Use in Adults With Type 1 Diabetes in the T1D Exchange. The Science Of Diabetes Self-Management And Care 2018, 44: 510-518. PMID: 30203721, DOI: 10.1177/0145721718799088.Peer-Reviewed Original ResearchConceptsType 1 diabetesGeneral populationSubstance usePast-year alcohol usePast-year usePsychoactive substancesDaily usePsychoactive substance usePast-month useClinical outcomesT1D ExchangeProblem useBinge drinkersT1D managementNonprescription useRegistry CenterAlcohol useStandardized instrumentsProblem drinkersAdult participantsDiabetesAdultsFrequency of useDrinkersProblematic use
2017
Altered Patterns of Early Metabolic Decompensation in Type 1 Diabetes During Treatment with a SGLT2 Inhibitor: An Insulin Pump Suspension Study
Patel NS, Van Name MA, Cengiz E, Carria LR, Weinzimer SA, Tamborlane WV, Sherr JL. Altered Patterns of Early Metabolic Decompensation in Type 1 Diabetes During Treatment with a SGLT2 Inhibitor: An Insulin Pump Suspension Study. Diabetes Technology & Therapeutics 2017, 19: 618-622. PMID: 29068709, PMCID: PMC5689123, DOI: 10.1089/dia.2017.0267.Peer-Reviewed Original ResearchConceptsSodium-glucose cotransporter 2 inhibitorsPlasma glucoseType 1 diabetesDiabetic ketoacidosisFree fatty acidsCANA treatmentBasal insulinGlucagon levelsMetabolic decompensationPlasma insulinInfusion site problemsCotransporter 2 inhibitorsBaseline plasma glucoseFailure of patientsBasal insulin infusionAdjunctive treatmentRate of ketogenesisSGLT2 inhibitorsT1D patientsT1D participantsInsulin infusionMagnitude of increasePG levelsSuspension studiesΒ-hydroxybutyratePostprandial Dosing of Bolus Insulin in Patients with type 1 Diabetes: a Cross-sectional Study Using Data From the T1d Exchange Registry
Peters A, Van Name MA, Thorsted B, Piltoft JS, Tamborlane WV. Postprandial Dosing of Bolus Insulin in Patients with type 1 Diabetes: a Cross-sectional Study Using Data From the T1d Exchange Registry. Endocrine Practice 2017, 23: 1201-1209. PMID: 28704103, DOI: 10.4158/ep171813.or.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overBlood GlucoseBlood Glucose Self-MonitoringChildChild, PreschoolCross-Sectional StudiesDiabetes Mellitus, Type 1Diabetic KetoacidosisDrug Dosage CalculationsFemaleHumansHypoglycemiaInfantInsulinInsulin Infusion SystemsMaleMiddle AgedPostprandial PeriodRegistriesYoung AdultConceptsRapid-acting insulin analoguesLarger insulin doseT1D Exchange RegistryType 1 diabetesCross-sectional studyDiabetic ketoacidosisInsulin doseGreater prevalenceCurrent rapid-acting insulin analoguesInsulin analoguesSelf-monitoring blood glucosePercent of patientsCharacteristics of patientsPoor glycemic controlExclusion of patientsBody mass indexContinuous glucose monitoringPostprandial dosingGlycemic controlSevere hypoglycemiaBolus insulinMass indexEnrollment questionnaireBlood glucoseGlucose levelsGlucose Outcomes with the In-Home Use of a Hybrid Closed-Loop Insulin Delivery System in Adolescents and Adults with Type 1 Diabetes
Garg SK, Weinzimer SA, Tamborlane WV, Buckingham BA, Bode BW, Bailey TS, Brazg RL, Ilany J, Slover RH, Anderson SM, Bergenstal RM, Grosman B, Roy A, Cordero TL, Shin J, Lee SW, Kaufman FR. Glucose Outcomes with the In-Home Use of a Hybrid Closed-Loop Insulin Delivery System in Adolescents and Adults with Type 1 Diabetes. Diabetes Technology & Therapeutics 2017, 19: 155-163. PMID: 28134564, PMCID: PMC5359676, DOI: 10.1089/dia.2016.0421.Peer-Reviewed Original ResearchConceptsHybrid closed-loop insulin delivery systemGlucose valuesDiabetic ketoacidosis eventsMulticenter pivotal trialStudy phaseBlood sample testingType 1 diabetesClosed-loop insulin delivery systemBlood glucose valuesHome useContinuous glucose monitoringSensor glucose valuesHCl therapyKetoacidosis eventsHybrid closed-loop systemPivotal trialsInsulin delivery systemsGlucose outcomesMedtronic MiniMedType 1Glucose monitoringInsulin deliveryAdultsStayAdolescentsUnderstanding bolus insulin dose timing: the characteristics and experiences of people with diabetes who take bolus insulin
Tamborlane WV, Pfeiffer KM, Brod M, Nikolajsen A, Sandberg A, Peters AL, Van Name M. Understanding bolus insulin dose timing: the characteristics and experiences of people with diabetes who take bolus insulin. Current Medical Research And Opinion 2017, 33: 639-645. PMID: 28008782, DOI: 10.1080/03007995.2016.1275937.Peer-Reviewed Original ResearchConceptsBolus insulinDose timingBolus insulin therapyPrevious weekType 2 diabetesExperiences of peopleInsulin therapyTreatment optionsDiabetes educationWeb-based surveyType 1DiabetesMajority of respondentsInsulinSelf-report surveyGeneralizability of findingsT2DT1DMealWeeksHypoglycemiaRespondentsTherapyBolusPotential bias
2016
Effective Translation of an Intensive Lifestyle Intervention for Hispanic Women With Prediabetes in a Community Health Center Setting
Van Name MA, Camp AW, Magenheimer EA, Li F, Dziura JD, Montosa A, Patel A, Tamborlane WV. Effective Translation of an Intensive Lifestyle Intervention for Hispanic Women With Prediabetes in a Community Health Center Setting. Diabetes Care 2016, 39: 525-531. PMID: 26908915, PMCID: PMC4806769, DOI: 10.2337/dc15-1899.Peer-Reviewed Original ResearchMeSH KeywordsAdiposityAdolescentAdultAgedBody Mass IndexChoice BehaviorCommunity Health CentersDiabetes Mellitus, Type 2ExerciseFeasibility StudiesFemaleFood PreferencesHispanic or LatinoHumansInsulinLife StyleMiddle AgedPilot ProjectsPrediabetic StateRisk FactorsSocioeconomic FactorsWaist CircumferenceWeight LossYoung AdultConceptsIntensive lifestyle interventionDiabetes Prevention ProgramCommunity health center settingUsual care groupType 2 diabetesHealth center settingHispanic womenILI groupLifestyle interventionCare groupOral glucose tolerance testCenter settingLow-income Hispanic womenWeight lossSimilar baseline weightGlucose tolerance testPercent body fatType of interventionCHC settingsDPP interventionsUsual careBaseline weightWaist circumferenceGlucose excursionsTolerance test
2015
Intranasal Glucagon for Treatment of Insulin-Induced Hypoglycemia in Adults With Type 1 Diabetes: A Randomized Crossover Noninferiority Study
Rickels MR, Ruedy KJ, Foster NC, Piché CA, Dulude H, Sherr JL, Tamborlane WV, Bethin KE, DiMeglio LA, Wadwa RP, Ahmann AJ, Haller MJ, Nathan BM, Marcovina SM, Rampakakis E, Meng L, Beck RW. Intranasal Glucagon for Treatment of Insulin-Induced Hypoglycemia in Adults With Type 1 Diabetes: A Randomized Crossover Noninferiority Study. Diabetes Care 2015, 39: 264-270. PMID: 26681725, PMCID: PMC4722945, DOI: 10.2337/dc15-1498.Peer-Reviewed Original ResearchConceptsInsulin-induced hypoglycemiaType 1 diabetesIntramuscular glucagonIntranasal glucagonSevere hypoglycemiaPlasma glucoseCrossover noninferiority trialTreatment of hypoglycemiaLoss of consciousnessReal-world managementDosing visitsGlucagon responseIntravenous insulinNoninferiority studyGlucagon administrationClinical centersFacial discomfortNoninferiority trialHospital settingGlucagon preparationHypoglycemiaTherapeutic insulinGlucagonType 1Mean timeCurrent State of Type 1 Diabetes Treatment in the U.S.: Updated Data From the T1D Exchange Clinic Registry
Miller KM, Foster NC, Beck RW, Bergenstal RM, DuBose SN, DiMeglio LA, Maahs DM, Tamborlane WV. Current State of Type 1 Diabetes Treatment in the U.S.: Updated Data From the T1D Exchange Clinic Registry. Diabetes Care 2015, 38: 971-978. PMID: 25998289, DOI: 10.2337/dc15-0078.Peer-Reviewed Original ResearchConceptsYears of ageType 1 diabetesT1D Exchange Clinic RegistryContinuous glucose monitoringDiabetic ketoacidosisSevere hypoglycemiaClinic registryMetabolic controlOutcome of treatmentOptimal metabolic controlRegistry findingsAdvanced diabetes technologiesAverage HbA1cMean hemoglobinYounger patientsCommon complicationCurrent treatmentNew therapiesAge 30HbA1cType 1DiabetesGlucose monitoringDiabetes technologyAgeImproved Postprandial Glucose Control Using the InsuPad Device in Insulin-Treated Type 2 Diabetes
Raz I, Bitton G, Feldman D, Alon T, Pfutzner A, Tamborlane WV. Improved Postprandial Glucose Control Using the InsuPad Device in Insulin-Treated Type 2 Diabetes. Journal Of Diabetes Science And Technology 2015, 9: 639-643. PMID: 25883166, PMCID: PMC4604546, DOI: 10.1177/1932296815578881.Peer-Reviewed Original ResearchConceptsRapid-acting insulin analoguesType 2 diabetesMeal tolerance testPlasma insulin levelsInsulin analoguesInsulin levelsGlucose excursionsInjection siteInsulin absorptionType 2 diabetic patientsPostmeal glucose excursionsStandardized liquid mealPostprandial glucose excursionsTime-action profilePostprandial glucose controlInsulin therapyDiabetic patientsGlucose controlLiquid mealOvernight fastInsulin aspartTolerance testPostprandial hyperglycemiaPremeal bolusesPremeal injectionsCGM-measured glucose values have a strong correlation with C-peptide, HbA1c and IDAAC, but do poorly in predicting C-peptide levels in the two years following onset of diabetes
Buckingham B, Cheng P, Beck RW, Kollman C, Ruedy KJ, Weinzimer SA, Slover R, Bremer AA, Fuqua J, Tamborlane W, for the Diabetes Research in Children Network (DirecNet) and Type 1 Diabetes TrialNet Study Groups. CGM-measured glucose values have a strong correlation with C-peptide, HbA1c and IDAAC, but do poorly in predicting C-peptide levels in the two years following onset of diabetes. Diabetologia 2015, 58: 1167-1174. PMID: 25773405, PMCID: PMC4416994, DOI: 10.1007/s00125-015-3559-y.Peer-Reviewed Original ResearchConceptsC-peptide levelsType 1 diabetesHigher C-peptide levelsC-peptideGlucose levelsTime pointsGlucose valuesMixed meal tolerance testAims/hypothesisThe aimCGM glucose levelsC-peptide responseWeeks of diagnosisOnset of diabetesLower glucose variabilityConclusions/interpretationInMethodsA secondary analysisSensor glucose levelsCGM glucose valuesAdditional time pointsHypothesisThe aimGlucose variabilityTolerance testContinuous glucose monitoring dataInsulin secretionCGM metrics
2014
Safety of Nighttime 2-Hour Suspension of Basal Insulin in Pump-Treated Type 1 Diabetes Even in the Absence of Low Glucose
Sherr JL, Collazo M, Cengiz E, Michaud C, Carria L, Steffen AT, Weyman K, Zgorski M, Tichy E, Tamborlane WV, Weinzimer SA. Safety of Nighttime 2-Hour Suspension of Basal Insulin in Pump-Treated Type 1 Diabetes Even in the Absence of Low Glucose. Diabetes Care 2014, 37: 773-779. PMID: 24170766, PMCID: PMC3931387, DOI: 10.2337/dc13-1608.Peer-Reviewed Original ResearchConceptsBlood β-hydroxybutyrate levelsΒ-hydroxybutyrate levelsBasal insulinBlood glucose levelsBasal insulin infusionGlucose levelsBlood glucoseInsulin infusionMorning blood glucose levelsType 1 diabetic subjectsUsual basal ratesBasal rateLow glucose levelsSignificant ketonemiaDiabetic ketoacidosisDiabetic subjectsControl nightSensor-augmented pump systemGlucose valuesType 1Experimental nightInsulinLow glucoseNext morningInfusion
2013
Effectiveness of Early Intensive Therapy on β-Cell Preservation in Type 1 Diabetes
Buckingham B, Beck RW, Ruedy KJ, Cheng P, Kollman C, Weinzimer SA, DiMeglio LA, Bremer AA, Slover R, Tamborlane WV, . Effectiveness of Early Intensive Therapy on β-Cell Preservation in Type 1 Diabetes. Diabetes Care 2013, 36: 4030-4035. PMID: 24130350, PMCID: PMC3836135, DOI: 10.2337/dc13-1074.Peer-Reviewed Original ResearchConceptsUsual care groupC-peptide concentrationsType 1 diabetesΒ-cell functionHybrid closed-loop controlSAP therapyPump therapyContinuous glucose monitorNew-onset type 1 diabetesPeak C-peptide concentrationMixed-meal tolerance testSensor-augmented pump therapyEarly intensive therapyΒ-cell preservationUsual care participantsDays of diagnosisC-peptide areaMultiple daily injectionsInsulin pump therapyDays/weekMean glucose concentrationMedian durationIntensive therapyPrimary outcomeDaily injectionsChallenges and Future Directions of the T1D Exchange Clinic Network and Registry
Miller KM, Xing D, Tamborlane WV, Bergenstal RM, Beck RW. Challenges and Future Directions of the T1D Exchange Clinic Network and Registry. Journal Of Diabetes Science And Technology 2013, 7: 963-969. PMID: 23911177, PMCID: PMC3879760, DOI: 10.1177/193229681300700418.Peer-Reviewed Original ResearchConceptsT1D Exchange Clinic NetworkClinic registryClinic networkT1D Exchange Clinic RegistryType 1 diabetes mellitusPublic health issueElectronic health recordsDiabetes historyDiabetes mellitusDiabetes CenterMedical recordsInsulin administrationMedical conditionsWide age rangeWeb-based questionnaireRegistryAutoimmune T1DMHealth issuesHealth recordsAge rangeData extractionParticipant completionT1DMClinicLaboratory results
2012
The T1D Exchange Clinic Registry
Beck RW, Tamborlane WV, Bergenstal RM, Miller KM, DuBose SN, Hall CA, Network F. The T1D Exchange Clinic Registry. The Journal Of Clinical Endocrinology & Metabolism 2012, 97: 4383-4389. PMID: 22996145, DOI: 10.1210/jc.2012-1561.Peer-Reviewed Original ResearchConceptsT1D Exchange Clinic RegistryClinic registryAutoimmune type 1 diabetesFirst-degree family membersClinic-based registrySevere hypoglycemic eventsChronic diabetic complicationsType 1 diabetesContinuous glucose monitoringAssessment of associationsDiabetes historyDiabetic ketoacidosisEndocrinology centersPatient characteristicsRenal diseaseChart extractionT1D ExchangeGlycosylated hemoglobinHypoglycemic eventsDiabetic complicationsRetinopathy treatmentGeneral healthFamily historyMedical conditionsRegistry