2022
Reversibility of brain glucose kinetics in type 2 diabetes mellitus
Sanchez-Rangel E, Gunawan F, Jiang L, Savoye M, Dai F, Coppoli A, Rothman DL, Mason GF, Hwang JJ. Reversibility of brain glucose kinetics in type 2 diabetes mellitus. Diabetologia 2022, 65: 895-905. PMID: 35247067, PMCID: PMC8960594, DOI: 10.1007/s00125-022-05664-y.Peer-Reviewed Original ResearchConceptsType 2 diabetesBrain glucose levelsGlucose levelsHyperglycaemic clampGlycaemic controlBrain glucoseUncontrolled type 2 diabetesType 2 diabetes mellitusConclusions/interpretationThese findingsAims/hypothesisWePlasma glucose levelsLinear mixed-effects regression modelsMixed-effects regression modelsContinuous glucose monitoringMinimal weight changeMagnitude of improvementAge 44.8MethodsEight individualsSD HbA1cDiabetes mellitusCerebral glucoseInterpretationThese findingsWeek interventionRegimen intensificationPost intervention
2019
Norepinephrine transporter availability in brown fat is reduced in obesity: a human PET study with [11C] MRB
Sanchez-Rangel E, Gallezot JD, Yeckel CW, Lam W, Belfort-DeAguiar R, Chen MK, Carson RE, Sherwin R, Hwang JJ. Norepinephrine transporter availability in brown fat is reduced in obesity: a human PET study with [11C] MRB. International Journal Of Obesity 2019, 44: 964-967. PMID: 31636373, PMCID: PMC7259982, DOI: 10.1038/s41366-019-0471-4.Peer-Reviewed Original ResearchConceptsBrown adipose tissueDetectable brown adipose tissueDistribution volume ratioMultilinear reference tissue model 2Norepinephrine transporterSympathetic innervationNorepinephrine transporter availabilityHuman brown adipose tissueDense sympathetic innervationPET-CT imagingReference tissue model 2Human PET studiesSupraclavicular regionCaucasian womenTransporter availabilityOccipital cortexObesityTherapeutic targetAdipose tissueBrown fatPET studiesWomenInnervationSelective ligandsEnergy-dissipating propertiesPET Imaging of Pancreatic Dopamine D2 and D3 Receptor Density with 11C-(+)-PHNO in Type 1 Diabetes
Bini J, Sanchez-Rangel E, Gallezot JD, Naganawa M, Nabulsi N, Lim K, Najafzadeh S, Shirali A, Ropchan J, Matuskey D, Huang Y, Herold K, Harris PE, Sherwin RS, Carson RE, Cline GW. PET Imaging of Pancreatic Dopamine D2 and D3 Receptor Density with 11C-(+)-PHNO in Type 1 Diabetes. Journal Of Nuclear Medicine 2019, 61: 570-576. PMID: 31601695, PMCID: PMC7198375, DOI: 10.2967/jnumed.119.234013.Peer-Reviewed Original ResearchConceptsT1DM individualsHealthy controlsDopamine DOutcome measuresAcute C-peptide responseSUVR-1Type 1 diabetes mellitusPET/CT scanningDuration of diabetesMaximal glycemic potentiationC-peptide responseClinical outcome measuresInsulin secretory capacityRoutine clinical measuresD3 receptor densityΒ-cell functionC-peptide releaseQuantitative PET measuresΒ-cell massDynamic PET scansQuantitative outcome measuresAgonist PET radioligandDiabetes mellitusReceptor agonistInsulin antibodies
2018
Glycemic Variability and Brain Glucose Levels in T1DM
Hwang JJ, Jiang L, Sanchez Rangel E, Fan X, Ding Y, Lam W, Leventhal J, Dai F, Rothman DL, Mason GF, Sherwin RS. Glycemic Variability and Brain Glucose Levels in T1DM. Diabetes 2018, 68: db180722. PMID: 30327383, PMCID: PMC6302539, DOI: 10.2337/db18-0722.Peer-Reviewed Original ResearchConceptsBrain glucose levelsGlycemic variabilityGlucose levelsHyperglycemic clampType 1 diabetes mellitusPlasma glucose levelsBrain glucose transportHealthy control participantsDiabetes mellitusBrain glucoseControl ratsContinuous glucose monitorGlucose clampRat modelOccipital lobeMRS scanningT1DMGlucose kineticsControl participantsGlucose transport kineticsGlucose monitorSimilar changesRatsClampGlucose transport