Caloric Restriction Rejuvenates Skeletal Muscle Growth in Heart Failure With Preserved Ejection Fraction

Caloric Restriction Rejuvenates Skeletal Muscle Growth in Heart Failure With Preserved Ejection Fraction
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热量限制可恢复心力衰竭患者的骨骼肌生长并保留射血分数

DOI:
10.1016/j.jacbts.2023.09.014
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发表时间:
2023
期刊:
Basic to Translational Science
影响因子:
--
通讯作者:
Espino-Gonzalez E
Espino-Gonzalez E
中科院分区:
--
文献类型:
--
作者:
Espino-Gonzalez E

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射血分数保留的心力衰竭(HFpEF)是一个主要的临床问题,治疗有限。HFpEF的特点是一种独特但鲜为人知的骨骼肌病理,这可能提供另一种治疗靶点。在一种大鼠模型中,我们发现肌核增殖受损是阻力运动后HFpEF肌纤维生长减少的机制之一。急性卡路里限制挽救了HFpEF的骨骼肌病理,而心脏治疗则没有效果。HFpEF患者肌核增殖调节机制紊乱。总体而言,这些发现可能对HFpEF有广泛的影响,表明饮食和运动干预相结合是克服骨骼肌病理的有益方法。
Heart failure with preserved ejection fraction (HFpEF) is a major clinical problem, with limited treatments. HFpEF is characterized by a distinct, but poorly understood, skeletal muscle pathology, which could offer an alternative therapeutic target. In a rat model, we identified impaired myonuclear accretion as a mechanism for low myofiber growth in HFpEF following resistance exercise. Acute caloric restriction rescued skeletal muscle pathology in HFpEF, whereas cardiac therapies had no effect. Mechanisms regulating myonuclear accretion were dysregulated in patients with HFpEF. Overall, these findings may have widespread implications in HFpEF, indicating combined dietary with exercise interventions as a beneficial approach to overcome skeletal muscle pathology.
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