Branched chain amino acids in heart failure
支链氨基酸在心力衰竭中的作用
基本信息
- 批准号:9977599
- 负责人:
- 金额:$ 58.13万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-04-01 至 2024-03-31
- 项目状态:已结题
- 来源:
- 关键词:ACTA1 geneAddressAnimal ModelBranched-Chain Amino AcidsCardiacCatabolismCause of DeathCell Culture TechniquesCellsComplexConsumptionCoronaryDataDiseaseElectrophysiology (science)EvaluationGenesGeneticHealthHeartHeart InjuriesHeart failureHospitalizationHumanIn SituInjuryInterventionInvestigationLeadLeft Ventricular Ejection FractionLightLoxP-flanked alleleMalignant NeoplasmsMapsMeasuresMediatingMetabolicMetabolismModelingMusMuscleMyocardiumPathway interactionsPatientsPharmacologyPhosphotransferasesPlasmaPlayRoleSecondary toSkeletal MuscleSliceTestingTherapeuticTissuesTracerWhole OrganismWorkadverse outcomecardiogenesisexperimental studygenetic manipulationheart functionhemodynamicsimprovedmortalitymouse modelnovelnovel therapeuticsoxidationpreservationresponse
项目摘要
SUMMARY
Heart failure (HF) is a leading cause of death worldwide, and the leading cause of hospital admissions in patients
over 65 in the US. The five-year mortality rate for patients with HF remains ~50%. Neurohormonal blockade has
been the mainstay of HF management for decades, but the limits of its benefits have likely been reached. Novel
therapies, addressing novel pathways, are direly needed. Mounting evidence indicates that the failing heart is
an “engine out of fuel” that fails to use fuel appropriately to satisfy its metabolic demands. Understanding how
the heart handles various fuels during health and disease, and finding ways to modulate these pathways, thus
holds great promise as novel therapies, orthologous to current neurohormonal blockade. We focus here on
branched chain amino acids (BCAAs). Plasma BCAA levels have been noted for decades to be elevated in heart
failure, and often to predict adverse outcomes. The expression of BCAA catabolic genes is the most significantly
suppressed signature in human failing hearts. Despite these observations, however, the role of BCAAs in heart
failure remains poorly understood, and the therapeutic opportunities consequently remain ill-defined. For
example, the extent to which BCAA consumption by the heart is required for normal or injured cardiac function
is unknown. Similarly unknown is the role of BCAA catabolism in other tissues, in particular the skeletal muscle,
which we have shown carries out the lion’s share of BCAA catabolism in the whole organism. Finally,
comprehensive quantification of BCAA (and other metabolite) consumption in human hearts, in situ, in both
failing and nonfailing conditions, has never been done. To address these questions, we will use here novel
genetic murine models;; murine models of various types of heart failure;; and investigations with human cells,
tissue, and plasma, to investigate in depth the role of BCAAs in heart failure. These highly focused studies will
elucidate the role of BCAA catabolism in cardiac function, with a strong focus on human studies.
总结
项目成果
期刊论文数量(0)
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Zoltan P Arany其他文献
Zoltan P Arany的其他文献
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{{ truncateString('Zoltan P Arany', 18)}}的其他基金
Comprehensive quantification of fuel use in cold-induced thermogenesis in vivo
体内冷诱导生热过程中燃料使用的综合量化
- 批准号:
10637680 - 财政年份:2023
- 资助金额:
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High-throughput screening for modulators of vascular fat transport to treat and prevent diabetes
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10343859 - 财政年份:2021
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High-throughput screening for modulators of vascular fat transport to treat and prevent diabetes
高通量筛选血管脂肪转运调节剂以治疗和预防糖尿病
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10331230 - 财政年份:2021
- 资助金额:
$ 58.13万 - 项目类别:
Keeping fat out of muscle - Role of Branched Amino Acids
保持肌肉中的脂肪——支链氨基酸的作用
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10186735 - 财政年份:2018
- 资助金额:
$ 58.13万 - 项目类别:
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保持肌肉中的脂肪 - 支链氨基酸氨基酸在胰岛素抵抗中的作用
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- 资助金额:
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