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Protective effect of astragaloside IV on lipopolysaccharide-induced cardiac dysfunction via downregulation of inflammatory signaling in mice
Context: Astragaloside IV (ASI) is a major and active saponin derivative of Astragalus membranaceus (Fisch) Bge. The anti-inflammatory properties of ASI are important for its cardioprotective effects. However, the molecular mechanisms of the protective …
Publication
Loss of Multidrug Resistance-Associated Protein 1 Potentiates Chronic Doxorubicin-Induced Cardiac Dysfunction in Mice
Doxorubicin (DOX), an effective cancer chemotherapeutic agent, induces dose-dependent cardiotoxicity, in part due to its ability to cause oxidative stress. We investigated the role of multidrug resistance–associated protein 1 (Mrp1/Abcc1) in DOX-induced …
Publication
In Vivo Analysis of Troponin C Knock-In (A8V) MiceCLINICAL PERSPECTIVE
Background—Mutations in thin-filament proteins have been linked to hypertrophic cardiomyopathy, but it has never been demonstrated that variants identified in the TNNC1 (gene encoding troponin C) can evoke cardiac remodeling in vivo. The goal of this …
Publication
Evaluation of Left Ventricle Function by Regional Fractional Area Change (RFAC) in a Mouse Model of Myocardial Infarction Secondary to Valsartan Treatment
Aim Left ventricle (LV) regional fractional area change (RFAC) measured by cardiac magnetic resonance (CMR) allows the non-invasive localization and quantification of the degree of myocardial infarction (MI), and could be applied to assess the …
Publication
MuRF2 regulates PPARγ1 activity to protect against diabetic cardiomyopathy and enhance weight gain induced by a high fat diet
Background: In diabetes mellitus the morbidity and mortality of cardiovascular disease is increased and represents an important independent mechanism by which heart disease is exacerbated. The pathogenesis of diabetic cardiomyopathy involves the enhanced …
Publication
Requisite Role of Kv1.5 Channels in Coronary Metabolic DilationNovelty and Significance
Rationale: In the working heart, coronary blood flow is linked to the production of metabolites, which modulate tone of smooth muscle in a redox-dependent manner. Voltage-gated potassium channels (Kv), which play a role in controlling membrane potential …
Publication
Adiponectin is required for cardiac MEF2 activation during pressure overload induced hypertrophy
Cardiomyocyte (CM) hypertrophy and increased heart mass in response to pressure overload are associated with hyper-activation of the myocyte enhancer factor-2 (MEF2) family of transcriptional regulators, and concomitant initiation of the fetal gene …
Publication
The F-BAR Protein NOSTRIN Dictates the Localization of the Muscarinic M3 Receptor and Regulates Cardiovascular FunctionNovelty and Significance
Rationale: Endothelial dysfunction is an early event in cardiovascular disease and characterized by reduced production of nitric oxide (NO). The F-BAR protein NO synthase traffic inducer (NOSTRIN) is an interaction partner of endothelial NO synthase and …
Publication
Magnolia Bioactive Constituent 4-O-Methylhonokiol Prevents the Impairment of Cardiac Insulin Signaling and the Cardiac Pathogenesis in High-Fat Diet-Induced Obese Mice
In obesity, cardiac insulin resistance is a putative cause of cardiac hypertrophy and dysfunction. In our previous study, we observed that Magnolia extract BL153 attenuated high-fat-diet (HFD)-induced cardiac pathogenic changes. In this study, we further …
Publication
A high-sugar and high-fat diet impairs cardiac systolic and diastolic function in mice
Background: Heart failure (HF) is a clinical syndrome characterized by dyspnea, fatigue, exercise intolerance and cardiac dysfunction. Unhealthy diet has been associated with increased risk of obesity and heart disease, but whether it directly affects …