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New Study Suggests that Amyloid Contributes to Calcific Aortic Valve Disease Development

DAIC

Getty Images milla1cf Fri, 06/07/2024 - 15:10 June 7, 2024 — Calcific aortic valve disease (CAVD) is the major heart valve disease that afflicts nearly 10 million patients globally with an annual mortality exceeding 100,000, and the numbers continue to rise. These findings appear online in the journal Trends in Molecular Medicine.

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Evaluation of vascular aging on measures of cardiac function and mechanical efficiency: insights from in-silico modeling

Frontiers in Cardiovascular Medicine

Introduction This study evaluated the hypothesis that vascular aging (VA) reduces ventricular contractile function and mechanical efficiency (ME) using the left ventricular pressure-volume (PV) construct. Methods A previously published in-silico computational model (CM) was modified to evaluate the hypothesis in two phases.

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Myocardial sodium–glucose cotransporter 2 expression and cardiac remodelling in patients with severe aortic stenosis: The BIO?AS study

European Journal of Heart Failure

Bar plots: in red, patients with low flow-low gradient (LF-LG) aortic stenosis; in blue, patients with normal flow-high gradient (HG) aortic stenosis; in black: controls. Main findings of the study. p  < 0.05 for HG and LF-LG vs. control; § p  < 0.05

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Abstract 4134695: The Effect and Mechanism of Histone Lactylation In Pathological Cardiac Hypertrophy Induced by Pressure Overload

Circulation

To investigate further, male mice underwent transverse aortic constriction (TAC) to induce cardiac hypertrophy, followed by either an intraperitoneal injection of Oxamate (an LDHA inhibitor) to reduce histone lactylation or sodium lactate to increase it.

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Abstract 4115947: Empagliflozin Inhibits the Mobilization of CCR2+ Monocyte-Derived Macrophages by Reducing CCL2 Expression in Fibroblasts and Slows the Progression of Heart Failure After Pressure Overload.

Circulation

Two weeks post-TAC, with heart function confirmed as equal across all groups by echocardiography, one group began receiving daily oral doses of empagliflozin, while another served as the control. At four weeks post-TAC, cardiac function was reassessed.

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Impact of systemic lupus erythematosus on cardiovascular morphologic and functional phenotypes: a Mendelian randomization analysis

Frontiers in Cardiovascular Medicine

A set of 82 CMR traits was obtained from a recent GWAS, serving as preclinical indicators and providing preliminary insights into the morphology and function of the four cardiac chambers and two aortic segments. Primary analysis employed a two-sample Mendelian randomization study using the inverse-variance weighted method.

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Metabolic remodeling in cardiac hypertrophy and heart failure with reduced ejection fraction occurs independent of transcription factor EB in mice

Frontiers in Cardiovascular Medicine

Cardiomyocyte-specific Tfeb knockout (cKO) and wildtype (WT) male mice were subjected to 27G transverse aortic constriction or sham surgery for 21 and 56 days, respectively, to induce LVH and HFrEF. Methods Luciferase assays were performed to verify that TFEB regulates PPARGC1A expression.