2018
PEPCK1 Antisense Oligonucleotide Prevents Adiposity and Impairs Hepatic Glycogen Synthesis in High-Fat Male Fed Rats
Beddow SA, Gattu AK, Vatner DF, Paolella L, Alqarzaee A, Tashkandi N, Popov V, Church C, Rodeheffer M, Cline G, Geisler J, Bhanot S, Samuel VT. PEPCK1 Antisense Oligonucleotide Prevents Adiposity and Impairs Hepatic Glycogen Synthesis in High-Fat Male Fed Rats. Endocrinology 2018, 160: 205-219. PMID: 30445425, PMCID: PMC6307100, DOI: 10.1210/en.2018-00630.Peer-Reviewed Original ResearchMeSH KeywordsAdipose Tissue, WhiteAdiposityAnimalsDiabetes Mellitus, Type 2Diet, High-FatGlucokinaseHumansInsulinIntracellular Signaling Peptides and ProteinsLipogenesisLiverLiver GlycogenMaleMiceMice, Inbred C57BLOligonucleotides, AntisensePhosphoenolpyruvate Carboxykinase (GTP)RatsRats, Sprague-DawleyConceptsHepatic glycogen synthesisAdipose tissueAntisense oligonucleotideType 2 diabetes mellitusWhite adipose tissue massIncreased hepatic gluconeogenesisChow fed ratsHepatic insulin sensitivityMale Sprague-DawleyAdipose tissue massHepatic insulin resistanceWhite adipose tissueHepatic glucose productionDe novo lipogenesisHepatic glucokinase expressionControl antisense oligonucleotideGlycogen synthesisTranscription factor 3HFF ratsDiabetes mellitusHepatic steatosisInsulin resistanceHyperglycemic clampPlasma glucoseInsulin sensitivity
2013
Targeting Pyruvate Carboxylase Reduces Gluconeogenesis and Adiposity and Improves Insulin Resistance
Kumashiro N, Beddow SA, Vatner DF, Majumdar SK, Cantley JL, Guebre-Egziabher F, Fat I, Guigni B, Jurczak MJ, Birkenfeld AL, Kahn M, Perler BK, Puchowicz MA, Manchem VP, Bhanot S, Still CD, Gerhard GS, Petersen KF, Cline GW, Shulman GI, Samuel VT. Targeting Pyruvate Carboxylase Reduces Gluconeogenesis and Adiposity and Improves Insulin Resistance. Diabetes 2013, 62: 2183-2194. PMID: 23423574, PMCID: PMC3712050, DOI: 10.2337/db12-1311.Peer-Reviewed Original ResearchConceptsPyruvate carboxylaseAntisense oligonucleotideHepatocyte fatty acid oxidationInsulin resistanceNonalcoholic fatty liver diseaseZucker diabetic fatty ratsHigh fat-fed ratsFatty liver diseaseLiver biopsy specimensDiabetic fatty ratsPlasma lipid concentrationsType 2 diabetesHepatic insulin sensitivityHuman liver biopsy specimensEndogenous glucose productionHepatic insulin resistancePlasma glucose concentrationPotential therapeutic approachSpecific antisense oligonucleotideFat-fed ratsCarboxylaseFatty acid oxidationDe novo fatty acid synthesisLiver diseaseTissue-specific inhibition
2010
Deletion of the α-Arrestin Protein Txnip in Mice Promotes Adiposity and Adipogenesis While Preserving Insulin Sensitivity
Chutkow WA, Birkenfeld AL, Brown JD, Lee HY, Frederick DW, Yoshioka J, Patwari P, Kursawe R, Cushman SW, Plutzky J, Shulman GI, Samuel VT, Lee RT. Deletion of the α-Arrestin Protein Txnip in Mice Promotes Adiposity and Adipogenesis While Preserving Insulin Sensitivity. Diabetes 2010, 59: 1424-1434. PMID: 20299477, PMCID: PMC2874703, DOI: 10.2337/db09-1212.Peer-Reviewed Original ResearchConceptsTxnip knockout miceInsulin resistanceInsulin sensitivityKnockout miceInsulin responsivenessTXNIP expressionSkeletal muscleWild-type littermate control miceStandard chow dietType 2 diabetes pathogenesisHigh-fat dietHigh-fat feedingLittermate control miceGene-deleted miceInhibits glucose uptakeControl miceChow dietAdipose massMore insulinCaloric excessFat massDiabetes pathogenesisMouse embryonic fibroblastsRegulator of adipogenesisPPARgamma expression