L-Arginine HCl (L-Arg)

Catalog No.S3174 Batch:S317402

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Technical Data

Formula

C6H14N4O2.HCl

Molecular Weight 210.66 CAS No. 1119-34-2
Solubility (25°C)* In vitro Water 42 mg/mL (199.37 mM)
DMSO Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description L-Arginine(L-Arg,(S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.
In vitro

L-Arginine (0.3 mM, 30 minutes) supplementation do not induce any significant increases in the peak NO concentration at low level of native LDL. However, at native LDL concentrations from 60-130 mg cholesterol/dL, NO concentration is 2 times higher than before L-Arginine treatment in bovine aortic endothelial cells. L-Arginine (0.3 mM, 30 minutes) pretreatment results in a significant increase of NO production in n-LDL–treated cells as well as in oxidized -LDL–treated cells in bovine aortic endothelial cells. L-Arginine (0.3 mM, 30 minutes) does not increase O2- concentration at low nativeLDL concentrations but reduce O2- production by 50% when incubate with n-LDL at concentrations >40 mg cholesterol/dL in bovine aortic endothelial cells. L-Arginine (0.3 mM, 30 minutes) pretreatment completely abolishes O2- production at every oxidized LDL dosage in bovine aortic endothelial cells. [1]

In vivo

L-Arginine (4 mg/kg/min for 1 hour) treatment decreases superoxide generation by cNOS while increasing NO accumulation in rabbit limb during ischemia/reperfusion. L-Arginine (4 mg/kg/min for 1 hour) prevents microvessel constriction in the reperfused muscle despite reduced but still apparent interstitial edema in rabbit limb. L-Arginine (4 mg/kg/min for 1 hour) treatment results in a significant reduction of muscular reperfusion edema in rabbit limb. [2] L-Arginine (0.1 g/kg, oral) supplementation significantly reduces pulmonary artery systolic pressure by a mean of 15.2% after 5 days of therapy in patients with sickle cell disease. Both L-Arginine and ornithine concentrations increased significantly after 5 days of oral L-Arginine (0.1 g/kg) supplementation in patients with sickle cell disease. [3] L-Arginine is associated with a decrease in cardiac index while stroke index is maintained in patients with severe sepsis. Resolution of shock at 72 hours is achieved by 40% and 24% of the patients in the L-Arginine and placebo cohorts, respectively. [4] L-Arginine (450 mg/kg during a 15-minute period) amplifies and sustains the hyperemia (38%) and increases absolute brain blood flow after eNOS upregulation by chronic simvastatin treatment (2 mg/kg subcutaneously, daily for 14 days) in SV-129 mice. [5]

Protocol (from reference)

Selleck's L-Arginine HCl (L-Arg) has been cited by 4 publications

Propafenone facilitates mitochondrial-associated ferroptosis and synergizes with immunotherapy in melanoma [ J Immunother Cancer, 2024, 12(11)e009805] PubMed: 39581704
P4HA1 as an unfavorable prognostic marker promotes cell migration and invasion of glioblastoma via inducing EMT process under hypoxia microenvironment [ Am J Cancer Res, 2021, 11(2):590-617] PubMed: 33575089
S100A9 gene silencing inhibits the release of pro‐inflammatory cytokines by blocking the IL‐17 signalling pathway in mice with acute pancreatitis [Dong‐Mei Wu, et al. J Cell Mol Med, 2018, 10.1111/jcmm.13532]
S100A9 gene silencing inhibits the release of pro-inflammatory cytokines by blocking the IL-17 signalling pathway in mice with acute pancreatitis. [ J Cell Mol Med, 2018, 22(4):2378-2389] PubMed: 29441717

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.