Atrial natriuretic factor and brain natriuretic peptide are two important biomarkers in clinical cardiology. These two natriuretic peptide hormones are encoded by the paralogous genes Nppa and Nppb, which are evolutionary conserved. Both genes are predominantly expressed by the heart muscle during the embryonic and fetal stages, and in particular Nppa expression is strongly reduced in the ventricles after birth. Upon cardiac stress, Nppa and Nppb are strongly upregulated in the ventricular myocardium. Much is known about the molecular and physiological ques inducing Nppa and Nppb expression; however, the transcriptional regulatory mechanisms of the Nppa-Nppb cluster in vivo has proven to be quite complex and is not well understood. In this review, we will provide recent insights into the dynamic and complex regulation of Nppa and Nppb during heart development and hypertrophy, and the association of this gene cluster with the cardiomyocyte-intrinsic program of heart regeneration.
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http://dx.doi.org/10.1007/s00018-017-2737-0 | DOI Listing |
Circulation
December 2024
Department of Cardiology, Keio University School of Medicine, Tokyo, Japan. (T.S., M.N., T.M., M.I.).
Background: Heart failure with preserved ejection fraction (HFpEF) is a major health concern. Pathological stimuli and interactions between cardiac fibroblasts (CFs) and other cell types may lead to cardiac fibrosis and diastolic dysfunction, which are hallmarks of HFpEF. Interstitial and perivascular cardiac fibrosis correlates with poor prognosis in HFpEF; however, mechanisms of fibrosis remain poorly elucidated, and targeted therapies are lacking.
View Article and Find Full Text PDFInt Immunopharmacol
December 2024
Basic Medical Research Center, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China. Electronic address:
Mutations in genes coding sarcomere components are the major causes of human inherited cardiomyopathy. Genome editing is widely applied to genetic modification of human pluripotent stem cells (hPSCs) before hPSCs were differentiated into cardiomyocytes to model cardiomyopathy. Whether genetic mutations influence the early hPSC differentiation process or solely the terminally differentiated cardiomyocytes during cardiac pathogenesis remains challenging to distinguish.
View Article and Find Full Text PDFHeliyon
September 2024
Department of Cardiology, Shanxi Provincial People's Hospital, Taiyuan, 030001, China.
Cardiac arrhythmias remain a significant cause of mortality and morbidity, for novel antiarrhythmic therapies. This study states that the first report of sophoridine (SPN), a quinolizidine alkaloid derived from traditional Chinese herbs, shows promise as a potential candidate due to its anti-arrhythmic and antioxidant properties. The study found that cell viability in H9C2 rat cardiomyocytes remained stable even when treated with SPN at a higher dosage of 100 μg/ml.
View Article and Find Full Text PDFGenes Nutr
August 2024
Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China.
Objective: Cardiac fibrosis is an important contributor to atrial fibrillation (AF). Our aim was to identify biomarkers for AF using bioinformatics methods and explore the regulatory mechanism of miR-450a-2-3p in cardiac fibrosis in mice.
Methods: Two datasets, GSE115574 and GSE79768, were obtained from the Gene Expression Omnibus (GEO) database and subsequently merged for further analysis.
Rev Cardiovasc Med
February 2024
Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Key Laboratory of Viral Heart Diseases, National Health Commission, 200032 Shanghai, China.
Background: The cardiotoxicity of doxorubicin (DOX) limits its use in cancer treatment. To address this limitation, we developed a novel animal model that uses beagle dogs to investigate DOX-induced cardiac disorders. Unfortunately, the lack of effective cardioprotection strategies against DOX-induced cardiotoxicity poses a significant challenge.
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