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Instability in nad+ metabolism leads to impaired cardiac mitochondrial function and communication
Poly(ADP-ribose) polymerase (PARP) enzymes initiate (mt)DNA repair mechanisms and use nicotinamide adenine dinucleotide (NAD+) as energy source. Prolonged PARP activity can drain cellular NAD+ reserves, leading to de-regulation of important molecular …
Publication
Loss of m6A methyltransferase METTL3 promotes heart regeneration and repair after myocardial injury
Aims: N6-Methyladenosine (m6A), one of the important epigenitic modifications, is very commom in messenger RNAs (mRNAs) of eukaryotes, and has been involved in various diseases. However, the role of m6A modification in heart regeneration after injury …
Publication
Rg3 promotes the SUMOylation of SERCA2a and corrects cardiac dysfunction in heart failure
SUMOylation of sarcoplasmic/endoplasmic reticulum Ca2+ ATPase 2a (SERCA2a) has been shown to play a critical role in the abnormal Ca2+ cycle of heart failure. Ginsenoside Rg3 (Rg3), the main active constituent of Panax ginseng, exerts a wide range of …
Publication
An antioxidant system through conjugating superoxide dismutase onto metal-organic framework for cardiac repair
Acute myocardial infarction (AMI) remains a dominant origin of morbidity, mortality and disability worldwide. Increases in reactive oxygen species (ROS) are key contributor to excessive cardiac injury after AMI. Here we developed an immobilized enzyme …
Publication
Abnormalities in lysine degradation are involved in early cardiomyocyte hypertrophy development in pressure-overloaded rats
Background: Cardiomyocyte metabolism changes before cardiac remodeling, but its role in early cardiac hypertrophy detection remains unclear. This study investigated early changes in plasma metabolomics in a pressure-overload cardiac hypertrophy model …
Publication
Deletion of AT1a (Angiotensin II Type 1a) Receptor or Inhibition of Angiotensinogen Synthesis Attenuates Thoracic Aortopathies in Fibrillin1C1041G/+Mice
Objective: A cardinal feature of Marfan syndrome is thoracic aortic aneurysm. The contribution of the renin-angiotensin system via AT1aR (Ang II [angiotensin II] receptor type 1a) to thoracic aortic aneurysm progression remains controversial because the …
Publication
MCU overexpression evokes disparate dose-dependent effects on mito-ROS and spontaneous Ca2 þ release in hypertrophic rat cardiomyocytes
Cardiac dysfunction in heart failure (HF) and diabetic cardiomyopathy (DCM) is associated with aberrant intracellular Ca2 þ handling and impaired mitochondrial function accompanied with reduced mitochondrial calcium concentration (mito-[Ca2 þ ]). …
Publication
Immune cell b2-adrenergic receptors contribute to the development of heart failure
B-Adrenergic receptors (bARs) regulate normal and pathophysiological heart function through their impact on contractility. bARs are also regulators of immune function where they play a unique role depending on the disease condition and immune cell type. …
Publication
The mitochondria-targeted antioxidant MitoQ attenuated PM2.5-induced vascular fibrosis via regulating mitophagy
Short-term PM2.5 exposure is related to vascular remodeling and stiffness. Mitochondria-targeted antioxidant MitoQ is reported to improve the occurrence and development of mitochondrial redox-related diseases. At present, there is limited data on whether …
Publication
Silencing Survivin: a Key Therapeutic Strategy for Cardiac Hypertrophy
Cardiac hypertrophy, in its aspects of localized thickening of the interventricular septum and concentric increase of the left ventricle, constitutes a risk factor of heart failure. Myocardial hypertrophy, in the presence of different degree of myocardial …