Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Brazil.
Faculdade de Farmácia - Campus Centro Oeste Dona Lindu, Universidade Federal de São João Del-Rei, Brazil.
Clin Chim Acta. 2015 Feb 2;440:36-9. doi: 10.1016/j.cca.2014.11.002. Epub 2014 Nov 7.
Asymmetric Dimethylarginine (ADMA) is a modified amino acid formed when intracellular arginine is methylated by methyltransferases that are widely distributed throughout the body. Nitric oxide (NO) is produced from l-arginine in a reaction catalyzed by three distinct isoforms of NO synthase (NOS). NO has emerged as a mediator involved in maintenance of vascular tonus, blood pressure regulation, inhibition of platelet aggregation, leukocyte and endothelial cell interaction and vascular permeability. ADMA is an important inhibitor that competes with NOS and compromises NO synthesis.
This review aims to compile articles involving renal and cardiovascular diseases in which plasma ADMA was assessed in order to clarify its role in these diseases.
Although current knowledge suggests that ADMA has a role in the onset of cardiovascular and renal diseases, its actions are poorly understood. Clarifying its biochemical mechanisms is essential for improving disease management and promoting better quality of life for these patients.
不对称二甲基精氨酸(ADMA)是一种由甲基转移酶将细胞内精氨酸甲基化形成的修饰氨基酸,这些甲基转移酶广泛分布于全身。一氧化氮(NO)是由 l-精氨酸在三种不同的一氧化氮合酶(NOS)同工酶催化的反应中产生的。NO 作为一种介质,参与维持血管张力、血压调节、抑制血小板聚集、白细胞和内皮细胞相互作用以及血管通透性。ADMA 是一种重要的抑制剂,与 NOS 竞争,影响 NO 的合成。
本综述旨在收集涉及肾脏和心血管疾病的文章,评估血浆 ADMA,以阐明其在这些疾病中的作用。
虽然目前的知识表明 ADMA 在心血管和肾脏疾病的发生中起作用,但它的作用尚不清楚。阐明其生化机制对于改善疾病管理和提高这些患者的生活质量至关重要。