2024
Effect of Weight Loss on Skeletal Muscle Bioactive Lipids in People with Obesity and Type 2 Diabetes.
Petersen M, Yoshino M, Smith G, Gaspar R, Kahn M, Samovski D, Shulman G, Klein S. Effect of Weight Loss on Skeletal Muscle Bioactive Lipids in People with Obesity and Type 2 Diabetes. Diabetes 2024 PMID: 39264820, DOI: 10.2337/db24-0083.Peer-Reviewed Original ResearchMuscle insulin sensitivitySkeletal muscle insulin sensitivityType 2 diabetesEffects of weight lossInsulin sensitivityWeight lossWeight loss-induced improvementWhole-body insulin sensitivityObesityGlucose tracer infusionAssociated with changesHyperinsulinemic-euglycemic clamp procedureCeramide contentSn-1,2-DAGMuscle
2021
281-OR: Endothelial Cell Cd36 Regulates Systemic Glucose and Lipid Metabolism
GOEDEKE L, SON N, LAMOIA T, NASIRI A, KAHN M, ZHANG X, CLINE G, GOLDBERG I, SHULMAN G. 281-OR: Endothelial Cell Cd36 Regulates Systemic Glucose and Lipid Metabolism. Diabetes 2021, 70 DOI: 10.2337/db21-281-or.Peer-Reviewed Original ResearchFatty acid uptakeLong-chain fatty acid uptakeAcid uptakeEndothelial cell CD36EC-specific deletionDifferent cell typesInsulin-stimulated glucose uptakeLipid metabolismWhole-body glucose toleranceTransmembrane proteinTissue fatty acid uptakeWhole-body insulin sensitivityEndothelial cellsHepatic glucose productionCell typesInsulin sensitivityGlucose transportSystemic glucoseSkeletal muscleCD36Glucose uptakeWhole-body fat utilizationGlucose productionSynthase fluxNon-esterified fatty acid levels
2019
Hepatic insulin sensitivity is improved in high‐fat diet‐fed Park2 knockout mice in association with increased hepatic AMPK activation and reduced steatosis
Edmunds LR, Huckestein BR, Kahn M, Zhang D, Chu Y, Zhang Y, Wendell SG, Shulman GI, Jurczak MJ. Hepatic insulin sensitivity is improved in high‐fat diet‐fed Park2 knockout mice in association with increased hepatic AMPK activation and reduced steatosis. Physiological Reports 2019, 7: e14281. PMID: 31724300, PMCID: PMC6854109, DOI: 10.14814/phy2.14281.Peer-Reviewed Original ResearchConceptsPark2 KO miceHepatic insulin sensitivityKO miceInsulin sensitivityInsulin resistanceShort-term HFD feedingDiet-induced hepatic insulin resistanceWhole-body insulin sensitivityPark2 knockout miceImproved hepatic insulin sensitivityDiet-induced obesityHigh-fat dietBioactive lipid speciesTumor necrosis factorHepatic insulin resistanceHepatic AMPK activationNegative energy balanceEndoplasmic reticulum stress responseRegular chowCytokine levelsHFD feedingReduced steatosisChronic HFDInterleukin-6Necrosis factor
2013
Cellular Mechanism by Which Estradiol Protects Female Ovariectomized Mice From High-Fat Diet-Induced Hepatic and Muscle Insulin Resistance
Camporez JP, Jornayvaz FR, Lee HY, Kanda S, Guigni BA, Kahn M, Samuel VT, Carvalho CR, Petersen KF, Jurczak MJ, Shulman GI. Cellular Mechanism by Which Estradiol Protects Female Ovariectomized Mice From High-Fat Diet-Induced Hepatic and Muscle Insulin Resistance. Endocrinology 2013, 154: 1021-1028. PMID: 23364948, PMCID: PMC3578999, DOI: 10.1210/en.2012-1989.Peer-Reviewed Original ResearchConceptsEstrogen replacement therapyOVX miceMuscle insulin sensitivityMuscle insulin resistanceInsulin resistanceInsulin sensitivityReplacement therapyHigh-fat diet feedingWhole-body insulin resistanceWhole-body insulin sensitivityFemale ovariectomized miceEctopic lipid depositionWhole-body energy expenditureType 2 diabetesEnergy expenditureWeeks of ageWhole-body energy homeostasisProtein kinase Cε activationHepatic DAG contentLivers of shamPostmenopausal womenSham miceOvariectomized miceGlucose toleranceE2 treatment