CAS |
No.30344-00-4 |
中文名称 |
对称N,N-二甲基精氨酸 |
英文名称 |
NG,NG’-Dimethyl-L-arginine |
别名 |
SDMA;Symmetric dimethylarginine; |
分子式 |
C8H18N4O2 |
分子量 |
202.25 |
溶解性 |
Soluble in Water/DMSO |
纯度 |
≥98% |
外观(性状) |
White to off-white Solid |
储存条件 |
Powder:2-8℃,2 years;Insolvent(母液):-20℃,6 months;-80℃,1 year |
运输条件 |
冷藏运输 |
MDL |
MFCD14705169 |
SMILES |
CNC(=NC)NCCC[C@@H](C(=O)O)N |
InChIKey |
HVPFXCBJHIIJGS-LURJTMIESA-N |
InChI |
InChI=1S/C8H18N4O2/c1-10-8(11-2)12-5-3-4-6(9)7(13)14/h6H,3-5,9H2,1-2H3,(H,13,14)(H2,10,11,12)/t6-/m0/s1 |
PubChem CID |
169148 |
靶点 |
Others |
通路 |
Others |
背景说明 |
NG,NG'-Dimethyl-L-arginine是一氧化氮 (NO) 合酶活性的内源性抑制剂。NG,NG'-Dimethyl-L-arginine是一种新的肾脏生物标志物。 |
生物活性 |
SDMA (Symmetric dimethylarginine) is an endogenous inhibitor of nitric oxide (NO) synthase activity. SDMA, a novel kidney biomarker, permits earlier diagnosis of kidney disease than traditional creatinine testing.[1-4] |
In Vitro |
SDMA 是心血管风险标志物不对称二甲基精氨酸的结构异构体,作为肾功能的内源性标志物。SDMA 不直接抑制 NOS,但它是精氨酸转运的竞争者。SDMA 主要通过肾脏排泄消除,是一种很有前途的肾小球滤过率内源性标志物[1]。 SDMA 剂量依赖性地抑制完整内皮细胞中 NO 的合成,而它对 NOS 的蛋白表达没有影响[1]。 SDMA 参与慢性肾脏病的炎症过程,激活 NF-κB 并导致 IL-6 和 TNF-α 表达增强[2]。 |
In Vivo |
SDMA 在血清和血浆中高度稳定,该测定具有出色的分析性能。在未受影响的狗中,SDMA 保持不变,而在受影响的狗中,SDMA 在疾病进展期间增加,与 sCr 的增加和 GFR 的减少密切相关[3]。 慢性 SDMA 输注导致小鼠 SDMA 水平显著增加,但 GFR 在 4 周时没有变化。没有观察到组织学变化,特别是对纤维化或内皮细胞一氧化氮合酶表达没有影响。SDMA 对收缩压和射血分数均无影响[4]。 |
细胞实验 |
SDMA stock solution is prepared in 0.9% NaCl and diluted in the cell culture medium or in heparinized whole blood resulting in a maximal uremic concentration of 6.1 μM SDMA. Whole blood is incubated with saline (control) or different doses of ADMA (0.6, 3.6, and 36 μM) or SDMA (1.5, 3.1, and 6.1 μM) for 2 hours in a humidified atmosphere of 5% CO2 in air at 37°C. Cells are finally stained for intracellular TNF-α or IL-6. Samples are analyzed with a flow cytometer[2]. |
动物实验 |
Mice: Eight-week-old male C57Bl/6 mice receives vehicle-controlled infusion of SDMA (250 μmol/kg/days) for 28 days using osmotic minipumps (n=24/group). Glomerular filtration rate, cardiac function and blood pressure are monitored. Blood samples for SDMA determination are obtained at baseline, 2 and 4 weeks. Mice are euthanized at 4 weeks to obtain tissue for renal histology[4]. |
数据来源文献 |
[1]. Bode-B?ger SM,et al. Symmetrical dimethylarginine: a new combined parameter for renal function and extent ofcoronary artery disease. [2]. Schepers E, et al. Symmetric dimethylarginine as a proinflammatory agent in chronic kidney disease.Clin J Am Soc Nephrol. 2011 Oct;6(10):2374-83. [3]. Nabity MB, et al. Symmetric Dimethylarginine Assay Validation, Stability, and Evaluation as a Marker for the EarlyDetection of Chronic Kidney Disease in Dogs. J Vet Intern Med. 2015 Jul-Aug;29(4):1036-44. [4]. Veldink H, et al. Effects of chronic SDMA infusion on glomerular filtration rate, blood pressure, myocardial function and renal histology in C57BL6/J mice. Nephrol Dial Transplant. 2013 Jun;28(6):1434-9. |
规格 |
1mg 5mg 10mg 25mg 50mg |
单位 |
瓶 |