Role of asymmetric dimethylarginine in cardiorenal syndrome
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Published on: October 26, 2020
Seiji Ueda, Sho-Ichi Yamagishi, Miyuki Yokoro
1Division of Nephrology, Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan. ueda@med.kurume-u.ac.jp.
Insights
Asymmetric dimethylarginine (ADMA) contributes to endothelial dysfunction, potentially explaining the link between cardiovascular disease and chronic kidney disease in cardiorenal syndrome. Elevated ADMA levels predict worse outcomes in these patients.
Area of Science:
- Nephrology
- Cardiology
- Vascular Biology
Background:
- Cardiorenal syndrome (CRS) involves a detrimental interplay between cardiovascular disease (CVD) and chronic kidney disease (CKD).
- The exact mechanisms driving CRS progression remain unclear, hindering effective treatment strategies.
- Endothelial dysfunction (ED) is implicated in both atherosclerosis and renal injury, suggesting a potential link in CRS.
Purpose of the Study:
- To explore the role of asymmetric dimethylarginine (ADMA) in the development of endothelial dysfunction.
- To investigate the contribution of ADMA-mediated ED to the pathogenesis of cardiorenal syndrome in CKD patients.
Main Methods:
- Literature review focusing on studies investigating ADMA, endothelial dysfunction, and cardiorenal syndrome.
- Analysis of existing clinical data linking ADMA levels to cardiovascular events and CKD progression.
Main Results:
- Asymmetric dimethylarginine (ADMA) is an endogenous nitric oxide synthase inhibitor.
- Plasma ADMA levels are elevated in patients with chronic kidney disease.
- Increased ADMA is an independent predictor of cardiovascular events and CKD progression.
Conclusions:
- Accumulated ADMA-mediated endothelial dysfunction is a significant factor in the development of cardiorenal syndrome.
- Targeting ADMA pathways may offer a therapeutic strategy for managing CRS in CKD patients.
Abstract:
Cardiorenal syndrome (CRS) is a condition in which there is a complex interrelationship between cardiovascular disease (CVD) and chronic kidney disease (CKD). Impairment of one organ could accelerate pathological processes in the other, which in turn accelerates the progression of failure of both. Although clinical studies hint at a specific bidirectional interaction between cardiovascular system and kidney, insight into the pathogenesis of CRS remains unknown. One possible factor that could explain this link is endothelial dysfunction (ED). ED is not only involved in initiation and progression of atherosclerosis, but also contributes to progression of renal injury. Asymmetric dimethylarginine (ADMA) is an endogenous NO synthase inhibitor found in the plasma and cells. Plasma ADMA levels are increased in CKD patients and known to be an independent biomarker and predictor for future cardiovascular events as well as the progression of CKD. These findings indicate that accumulated ADMA-mediated ED may play important roles in CRS in CKD patients. In this review, we discuss the roles of ADMA in the development of ED, especially focusing on its roles in CRS.
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