NO Synthase Activator

Piceatannol 3'-O-glucoside, an active component of Rhubarb, activates endothelial nitric oxide (NO) synthase through inhibition of arginase activity with IC₅₀s of 11.22 μM and 11.06 μM against arginase I and arginase II, respectively.

(-)-Syringaresinol is an orally active isomer of syringaresinol (HY-N8307) found in Annona Montana. (-)-Syringaresinol exhibits antioxidant, anti-inflammatory, and anticancer activities. (-)-Syringaresinol can alleviate ulcerative colitis via the PI3K-Akt/MAPK/Wnt signaling pathway. (-)-Syringaresinol inhibits HL-60 cell proliferation by arresting the G1 phase and inducing apoptosis. (-)-Syringaresinol inhibits LPS (HY-D1056)-induced microglial activation by downregulating the NF-κB p65 signaling pathway and its interaction with ERβ, exerting anti-neuroinflammatory effects.

Demethylasterriquinone B1 (DAQ B1; L-783281) is an orally active insulin receptor (insulin receptor) agonist and AKT activator. By activating AKT, Demethylasterriquinone B1 upregulates the expression and activity of eNOS to increase NO production, while downregulating the expression of the NADPH oxidase subunit p22phox to reduce oxidative stress and improve vascular endothelial dysfunction in hypertensive rats. Demethylasterriquinone B1 combind with an AKT inhibitor targets the insulin signaling pathway to activate two antiviral pathways, RNA interference and JAK/STAT, in mosquitoes, thereby reducing Zika virus infection.

L-Arginine-¹⁵N₂ (hydrochloride) is the ¹⁵N-labeled L-Arginine (hydrochloride). L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.

3',4'-Dihydroxyflavonol (DiOHF) is an effective antioxidant, which reduces superoxide and improves nitric oxide (NO) function in diabetic rat mesenteric arteries.

JS-K is a NO donor that reacts with glutathione to generate NO at physiological pH. JS-K induces reactive oxygen species (ROS) to mediate apoptosis. JS-K induces autophagy. JS-K inhibits invasion. JS-K has a broad spectrum anti-proliferative activity in cancer cells. JS-K reduces tumor volume and causes necrosis of implanted tumors in mice.

L-Arginine-1,2-¹³C₂ (hydrochloride) is the ¹³C-labeled L-Arginine hydrochloride. L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.

L-Arginine-1-¹³C (hydrochloride) is the ¹³C-labeled L-Arginine hydrochloride. L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.

Quinolinic acid-13C4, 15N is an isotopic labeled Quinolinic acid (HY-100807). Quinolinic acid, an endogenous metabolite of tryptophan, is a N-methyl-D-aspartate receptor (NMDA receptor) agonist. Quinolinic acid increases glutamate efflux, induces the generation of ROS, activates nitric oxide synthase, produces excessive NO, leading to calcium ion influx and neuronal apoptosis.

Zofenoprilat is an angiotensin-converting enzyme (ACE) inhibitor with an IC₅₀ of 1.7 nM. Zofenoprilat exerts cardioprotective and renoprotective effects by inhibiting angiotensin II expression and lowering blood pressure. Zofenoprilat promotes NO production and reduces endothelin-1 (ET-1) expression. Zofenoprilat decreases TNFα-induced ROS production and protects vascular endothelial function. Zofenoprilat regulates oxidative stress-related molecules and possesses antioxidant activity. Zofenoprilat can be used in studies related to hypertension and congestive heart failure.

L-Arginine (hydrochloride) (Standard) is the analytical standard of L-Arginine (hydrochloride). This product is intended for research and analytical applications. L-Arginine ((S)-(+)-Arginine) is the substrate for the endothelial nitric oxide synthase (eNOS) to generate NO. L-Arginine is transported into vascular smooth muscle cells by the cationic amino acid transporter family of proteins where it is metabolized to nitric oxide (NO), polyamines, or L-proline. L-Arginine is a potent vasodilator, and can be used to induce experimental acute pancreatitis.

Ditalimfos (Standard) is the analytical standard of Ditalimfos. This product is intended for research and analytical applications. Ditalimfos is an organophosphate fungicide. Ditalimfos is mainly used in agriculture to control fungal diseases of crops. Ditalimfos can be used for fungal resistance studies and risk assessment of residues in the environment.

Formic acid ammonium (Standard) is the analytical standard of Formic acid ammonium. This product is intended for research and analytical applications. Formic acid ammonium is the ammonium salt form of formic acid, which is an endogenous metabolite. Formic acid ammonium activates the nitric oxide/cyclic guanosine monophosphate (NO/cGMP) signaling pathway in endothelial cells and inhibits calcium ion influx in vascular smooth muscle cells, resulting in vasomotor relaxation. Formic acid ammonium inhibits cytochrome C oxidase (CcO) and disrupts the electron transport chain, leading to ATP depletion. Formic acid ammonium can be used as a feed additive, which can lower the feed pH value, inhibit the growth of microorganisms (such as Escherichia coli, Salmonella), and extend the shelf life of the feed.

L-Arginine-¹³C₆,¹⁵N₄,d₇ (hydrochloride) is the deuterium, ¹³C-, and 15-labeled L-Arginine hydrochloride. L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.

DMPO (Standard) is the analytical standard of DMPO. This product is intended for research and analytical applications. DMPO is a cell permeable hydrophillic spin trap agent for superoxide detection.

Midostaurin (Standard) is the analytical standard of Midostaurin. This product is intended for research and analytical applications. Midostaurin (PKC412; CGP 41251) is an orally active, reversible multi-targeted protein kinase inhibitor. Midostaurin inhibits PKCα/β/γ, Syk, Flk-1, Akt, PKA, c-Kit, c-Fgr, c-Src, FLT3, PDFRβ and VEGFR1/2 with IC₅₀s ranging from 22-500 nM. Midostaurin also upregulates endothelial nitric oxide synthase (eNOS) gene expression. Midostaurin shows powerful anticancer effects.

Phylloflavan is an antileishmanial (Antileishmanial) agent with an EC₅₀ of 3.2 nM against intracellular amastigotes of Leishmania donovani. Phylloflavan is isolated from Phyllocldus plants. Phylloflavan induces moderate levels of NO release. Phylloflavan also inhibits the cytopathic effect of encephalomyocarditis virus on L929 fibroblasts (38 U/mL).

Sanguinarine (Standard) is the analytical standard of Sanguinarine. This product is intended for research and analytical applications. Sanguinarine (Sanguinarin), a benzophenanthridine alkaloid derived from the root of Sanguinaria Canadensis, can stimulate apoptosis via activating the production of reactive oxygen species (ROS). Sanguinarine-induced apoptosis is associated with the activation of JNK and NF-κB.

Capa-2 is a neuropeptide. Capa-2 activates calcium ion influx, stimulates the production of NO, activates soluble guanylate cyclase (sGC), increases intracellular cGMP, and drives ion and fluid secretion. Capa-2 can be used in studies of diuresis.

SP6 exertes an antihypertensive effect through vascular NO regulation.