0000000000400871

AUTHOR

Robert S. Figenshau

showing 2 related works from this author

Decreased consumption of branched-chain amino acids improves metabolic health

2016

Protein-restricted (PR), high-carbohydrate diets improve metabolic health in rodents, yet the precise dietary components that are responsible for these effects have not been identified. Furthermore, the applicability of these studies to humans is unclear. Here, we demonstrate in a randomized controlled trial that a moderate PR diet also improves markers of metabolic health in humans. Intriguingly, we find that feeding mice a diet specifically reduced in branched-chain amino acids (BCAAs) is sufficient to improve glucose tolerance and body composition equivalently to a PR diet via metabolically distinct pathways. Our results highlight a critical role for dietary quality at the level of amino…

0301 basic medicineBlood GlucoseMalemedicine.medical_specialtyAdipose Tissue WhiteAdipose tissueBiologybranched-chain amino acids (BCAAs)General Biochemistry Genetics and Molecular BiologyArticle03 medical and health sciences0302 clinical medicineStress PhysiologicalInternal medicineInsulin-Secreting CellsGlucose IntolerancemedicineAnimalsHumansbiochemistryObesitylcsh:QH301-705.5Metabolic health2. Zero hungerchemistry.chemical_classificationgenetics and molecular biology (all)GluconeogenesisOrgan SizeMiddle Agedmedicine.diseaseObesityAmino acidFibroblast Growth FactorsMice Inbred C57BLProtein-restricted (PR)030104 developmental biologyEndocrinologyPharmacological interventionslcsh:Biology (General)BiochemistrychemistryGluconeogenesisDiet qualitybiochemistry; genetics and molecular biology (all)Dietary Proteins030217 neurology & neurosurgeryAmino Acids Branched-Chain
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Dietary protein restriction reduces circulating VLDL triglyceride levels via CREBH-APOA5-dependent and -independent mechanisms

2018

Hypertriglyceridemia is an independent risk factor for cardiovascular disease. Dietary interventions based on protein restriction (PR) reduce circulating triglycerides (TGs), but underlying mechanisms and clinical relevance remain unclear. Here, we show that 1 week of a protein-free diet without enforced calorie restriction significantly lowered circulating TGs in both lean and diet-induced obese mice. Mechanistically, the TG-lowering effect of PR was due, in part, to changes in very low-density lipoprotein (VLDL) metabolism both in liver and peripheral tissues. In the periphery, PR stimulated VLDL-TG consumption by increasing VLDL-bound APOA5 expression and promoting VLDL-TG hydrolysis and…

0301 basic medicineMalemedicine.medical_specialtyVery low-density lipoproteinDietary proteinFGF21Calorie restrictionmTORC1Lipoproteins VLDLMechanistic Target of Rapamycin Complex 1Protein Serine-Threonine Kinases03 medical and health sciencesMice0302 clinical medicineRisk FactorsInternal medicinemedicineDiet Protein-RestrictedIntegrated stress responseAnimalsHumansCyclic AMP Response Element-Binding ProteinTriglyceridesRandomized Controlled Trials as TopicHypertriglyceridemiaChemistryHydrolysisHypertriglyceridemianutritional and metabolic diseasesGeneral Medicinemedicine.diseaseLipid Metabolism030104 developmental biologyEndocrinologyApolipoproteinsHypotriglyceridemiaLiverApolipoprotein A-Vlipids (amino acids peptides and proteins)Female030217 neurology & neurosurgeryLipoproteinResearch Article
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