ArticleThe Journal of surgical research2020
Differential Expression of the Angiotensin-(1-12)/Chymase Axis in Human Atrial Tissue.
Article in The Journal of surgical research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 12 citations in OpenAlex.
- Clofibrate, a Peroxisome Proliferator-Activated Receptor-Alpha (PPARα) Agonist, and Its Molecular Mechanisms of Action against Sodium Fluoride-Induced Toxicity.Biological trace element research · 2022Article
- Immunoneutralization of human angiotensin-(1-12) with a monoclonal antibody in a humanized model of hypertension.Peptides · 2022Article
- Regional Diversities in Fibrogenesis Weighed as a Key Determinant for Atrial Arrhythmogenesis.Biomedicines · 2021Review
- Calcium Regulation on the Atrial Regional Difference of Collagen Production Activity in Atrial Fibrogenesis.Biomedicines · 2021Article
- The Angiotensin-(1-12)/Chymase axis as an alternate component of the tissue renin angiotensin system.Molecular and cellular endocrinology · 2021Review
- Angiotensin (1-12) in Humans With Normal Blood Pressure and Primary Hypertension.Hypertension (Dallas, Tex. : 1979) · 2021Article
- Atrial angiotensin-(1-12)/chymase expression data in patient of heart diseases.Data in brief · 2020Article
- Is chymase 1 a therapeutic target in cardiovascular disease?Expert opinion on therapeutic targetsReview
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
Abstract
backgroundHeart chymase rather than angiotensin (Ang)-converting enzyme has higher specificity for Ang I conversion into Ang II in humans. A new pathway for direct cardiac Ang II generation has been revealed through the demonstration that Ang-(1-12) is cleaved by chymase to generate Ang II directly. Herein, we address whether Ang-(1-12), chymase messenger RNA (mRNA), and activity levels can be differentiated in human atrial tissue from normal and diseased hearts and if these measures associate with various pathologic heart conditions. MATERIALS AND
methodsAtrial appendages were collected from 11 nonfailing donor hearts and 111 patients undergoing heart surgery for the correction of valvular heart disease, resistant atrial fibrillation, or ischemic heart disease. Chymase mRNA was analyzed by real-time polymerase chain reaction and enzymatic activity by high-performance liquid chromatography using Ang-(1-12) as the substrate. Ang-(1-12) levels were determined by immunohistochemical staining.
resultsChymase gene transcripts, chymase activity, and immunoreactive Ang-(1-12) expression levels were higher in left atrial tissue compared with right atrial tissue, irrespective of cardiac disease. In addition, left atrial chymase mRNA expression was significantly higher in stroke versus nonstroke patients and in cardiac surgery patients who had a history of postoperative atrial fibrillation versus nonatrial fibrillation. Correlation analysis showed that left atrial chymase mRNA was positively related to left atrial enlargement, as determined by echocardiography.
conclusionsAs Ang-(1-12) expression and chymase gene transcripts and enzymatic activity levels were positively linked to left atrial size in patients with left ventricular heart disease, an important alternate Ang II forming pathway, via Ang-(1-12) and chymase, in maladaptive atrial and ventricular remodeling in humans is uncovered.
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