Nitric Oxide Signaling (NOS)

Nitric oxide synthase (NOS) inhibitors and related tools act on the enzymes that make nitric oxide from L-arginine. NOS was first isolated from rat brain in 1990 and shown to require calmodulin for its activity. Three isoforms exist, neuronal, endothelial and inducible NOS (iNOS), the last expressed mainly in activated immune cells. 1400W dihydrochloride, described in 1997 as a slow, tight-binding iNOS inhibitor, and GW274150 are used for isoform-selective studies. L-NIO dihydrochloride is an arginine analog that inhibits several isoforms. Asymmetric dimethylarginine is an endogenous NOS inhibitor that accumulates in chronic renal failure. 2,4-Diamino-6-hydroxypyrimidine blocks GTP cyclohydrolase I, which limits synthesis of the NOS cofactor tetrahydrobiopterin.

4 Items

  • Formic acid ammonium
    Cat. No.
    A17843

    Formic acid ammonium

    Synonyms: Ammonium formate

    Formic acid ammonium serves as an ammonium salt derivative of formic acid, functioning as a nitric oxide/cyclic guanosine monophosphate (NO/cGMP) activator. This compound activates NO/cGMP signaling in endothelial cells and inhibits calcium ion influx in vascular smooth muscle cells, promoting vasomotor relaxation. Additionally, formic acid ammonium inhibits cytochrome C oxidase, disrupting the electron transport chain and resulting in ATP depletion. This reagent also finds utility as a feed additive, where it can lower the feed pH, inhibit the growth of pathogenic microorganisms such as Escherichia coli and Salmonella, thereby enhancing the shelf life of the feed.

    10 g
    $25.00
    50 g
    $30.00
    All 4 sizes
  • Bendazol
    Cat. No.
    A18204

    Bendazol

    Bendazol is a nitric oxide synthase activator that plays a significant role in vascular smooth muscle relaxation. Its primary biological activity involves the dilation of blood vessels, leading to reduced peripheral resistance and improved blood circulation, making it useful in the study of antihypertensive effects. Bendazol has been shown to inhibit myopia development in rabbit models and positively influences kidney function by enhancing NO synthase activity in nephrogenic hypertension models. Additionally, this compound affects sexual behavior and spermatogenesis in male rats, contributing to its relevance in reproductive health research.

    200 mg
    $20.00
    500 mg
    $25.00
    All 5 sizes
  • AVE-3085
    Cat. No.
    A20754

    AVE-3085

    AVE-3085 is a potent endothelial nitric oxide synthase enhancer, used for cardiovascular disease treatment.

    1 mg
    $75.00
    2 mg
    $90.00
    All 7 sizes
  • Piceatannol 3'-O-glucoside
    Cat. No.
    A44003

    Piceatannol 3'-O-glucoside

    Synonyms: Quzhaqigan

    Piceatannol 3'-O-glucoside is a potent activator of endothelial nitric oxide (NO) synthase that functions by inhibiting arginase activity. Demonstrating IC50 values of 11.22 μM and 11.06 μM for arginase I and arginase II, respectively, this compound is valuable for research focused on vascular biology and endothelial function. Its role in enhancing NO production makes it an important tool for studying cardiovascular health and related signaling pathways.

    1 mg
    $50.00
    2 mg
    $75.00
    All 8 sizes

4 Items

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