aspirin

Aspirin (Acetylsalicylic Acid) is a COX inhibitor that inhibits COX1 and COX2 (IC50=5 210 μg mL) with selective, irreversible, and oral activity. Aspirin is also a histone deacetylase inhibitor that up-regulates the cell cycle blocking protein, p21. Aspirin has a variety of activities. Aspirin has anti-inflammatory, antipyretic and analgesic, and antiplatelet aggregation activities.

Aspirin DL-lysine is a non-steroidal anti-inflammatory drug. It also may inhibit cancer growth. Aspirin DL-lysine is a water-soluble, injectable aspirin derivative.

Aspirin calcium is the prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5)

Se-Aspirin (Se-NSAID-8) has anticancer activity and gastroprotective effects, inhibits activation of proinflammatory and pro-survival NF-ĸB pathways, and inhibits the expression of anti-apoptotic targets downstream of NF-ĸB (e.g., Bcl-xL, Mcl-1, and survivin).Se-Aspirin induces Cell cycle arrest and activation of apoptosis accelerates ulcer healing and can be used to study pancreatic and colorectal cancer.

Aspirin Aluminum is an intermolecular compound that can inhibit gastrointestinal mucosal disorders induced by NSAIDs.

Nitroaspirin (NCX 4016) is a nitric oxide donor and a nitro-derivative of Aspirin that inhibits cyclooxygenase. It induces cell cycle arrest and apoptosis in Cisplatin-resistant human ovarian cancer cells by down-regulating EGFR PI3K STAT3 signaling and modulating Bcl-2 family proteins. Additionally, Nitroaspirin possesses antithrombotic and antiplatelet properties and acts as a direct and irreversible inhibitor of COX-1.

Resolvins are a family of potent lipid mediators derived from both eicosapentaenoic acid and docosahexaenoic acid.[1] In addition to being anti-inflammatory, resolvins promote the resolution of the inflammatory response back to a non-inflamed state.[2] Resolvin D1 is produced physiologically from the sequential oxygenation of DHA by 15- and 5-lipoxygenase.[1] 17(R)-RvD1 is an aspirin-triggered epimer of RvD1 that reduces human polymorphonuclear leukocyte (PMN) transendothelial migration, the earliest event in acute inflammation, with equipotency to RvD1 (EC50 = ~30 nM).[3] 17(R)-RvD1 exhibits a dose-dependent reduction in leukocyte infiltration in a mouse model of peritonitis with maximal inhibition of ~35% at a 100 ng dose.[3] In contrast to RvD1, the aspirin-triggered form resists rapid inactivation by eicosanoid oxidoreductases. Analytical and biological comparisons of synthetic 17(R)-RvD1 with endogenously derived 17(R)-RvD1 have confirmed its identity as matching the natural product.[4]

17(R)-Resolvin D1 (17(R)-RvD1) is an aspirin-triggered epimer of RvD1 that equivalently inhibits human polymorphonuclear leukocyte migration across the endothelium (EC50= ~30 nM), a precursor to acute inflammation. Unlike RvD1, it resists rapid degradation by eicosanoid oxidoreductases. In a mouse peritonitis model, 17(R)-RvD1 dose-dependently reduces leukocyte infiltration, achieving up to a 35% decrease with a 100 ng dose. Additionally, its methyl ester derivative, designed to enhance its pharmacokinetic and distribution properties as a more lipophilic prodrug, can be converted back into the active acid form by intracellular esterases.

17(R)-Resolvin D3 (17(R)-RvD3) is an aspirin-triggered epimer of resolvin D3, produced from docosahexaenoic acid (DHA) through the action of COX-2 in the presence of aspirin, via a 17(R)-hydroperoxy DHA (17(R)-HDHA) intermediary. Identified in mouse inflammatory exudates, 17(R)-RvD3 notably inhibits the transmigration of isolated human polymorphonuclear cells (PMNs) and fosters the efferocytosis of apoptotic PMNs by macrophages. Furthermore, in a mouse model of zymosan-induced peritonitis, 17(R)-RvD3 administration (10 ng/animal) significantly curtails neutrophil infiltration into the peritoneal cavity and modulates cytokine levels by reducing IL-6 and increasing IL-10 in the inflammatory exudate. It engages GPR32, evidenced by activation in a β-arrestin reporter assay and augments phagocytosis more effectively in CHO cells overexpressing GPR32 compared to controls. Additionally, 17(R)-RvD3 enhances the clearance of etoposide-induced tumor cell debris by monocyte-derived macrophages in H460 human lung carcinoma.

1. ISOGINKGETIN (4',4'''-Dimethylamentoflavone), a compound derived from the leaves of Ginkgo biloba, to up-regulate adiponectin secretion with potency comparable to that of rosiglitazone, a known modulator of adiponectin production. 2. Isoginkgetin has anti-tumor activity, the mechanistic basis is splicing inhibition , thus, pre-mRNA splicing inhibitors may represent a novel avenue for development of new anti-cancer agents.3. Isoginkgetin can inhibit tumor cell invasion by regulating phosphatidylinositol 3-kinase Akt-dependent matrix metalloproteinase-9 expression. 4. Isoginkgetin (0.3mg kg ip for 3d) can reduce the level of O2·- in plasma and erythroeyte and sometimes increase the activity of SOD in anoxic rats, the action being stronger than aspirin.

ZINC40099027 is a specific adhesion plaque kinase (FAK) activator that promotes gastric mucosal repair in persistent aspirin-associated gastric injury through activation of adhesion plaque kinase, activates human adhesion plaque kinase by accelerating the enzyme activity of the structural domain of FAK kinase, activates cytosolic FAK, and promotes intestinal epithelial wound closure.

Triflusal (UR1501) is a 2-acetoxy-4-trifluoromethylbenzoic acid and it is an aspirin chemically-related molecule but not a derivative.

2-Hydroxy-6-methoxybenzoic acid (6-Methoxysalicylic acid) may be employed as internal standard for the determination of acetylsalicylic acid (aspirin, ASA) and its major metabolite, salicylic acid (SA),and exhibits significant analgesic effects

Salicylamide (2-Hydroxybenzamide) is an over-the-counter drug with analgesic and antipyretic properties, which has similar medicinal properties to aspirin. In the over-the-counter pain remedies, Salicylamide is used in combination with both aspirin and caffeine.

ABzOH is a benzoic acid derivative, similar in structure to non-steroidal anti-inflammatory drugs such as aspirin, with anti-inflammatory, anti-tumor and anti-proliferative effects. ABzOH can not only inhibit the expression of tumor necrosis factor-α (TNF-a), interleukin-1β (IL-1β), interleukin-6 (IL-6) and other pro-inflammatory cytokines, but also inhibit breast cancer, lung cancer and pancreatic cancer.

Pyrocatechuic acid (Catecholcarboxylic acid), a normal human benzoic acid metabolite found in plasma, has increased levels after aspirin ingestion.

Fendosal (HP-129) is a non-steroidal anti-inflammatory agent. It is 6.9 to 9.5 times more active than aspirin in the prophylactic and therapeutic adjuvant-induced polyarthritis models of chronic inflammation.

6'-GNTI dihydrochloride is a κ-opioid receptor (KOR) agonist that favors activation of G-protein-mediated signaling over recruitment of β-aspirin 2. 6'-GNTI dihydrochloride only activates the Akt pathway in striatal neurons.

Vicagrel is an effective, orally active antiplatelet compound that enhances the inhibitory effect of aspirin on platelet aggregation and thrombosis in rodents by irreversibly inhibiting P2Y12 receptors and reducing metabolic inactivation. Viagrel can be used to treat blood clots in coronary artery disease, peripheral vascular disease and cerebrovascular disease.

Gaultherin has analgesic, and anti-inflammatory activities.Gaultherin lacks gastric ulcerogenic effect, because of it released salicylate in intestine slowly, not in stomach and it left the cyclooxygenase-1 unaffected, which was the source of cytoprotecti

Tri-Salicylic Acid, a product of the thermal decomposition of aspirin, is a compound for proteomics research.

KF 392 is antiulcer. It was found that KF-392 given orally to rats at 1.0 to 5.0 mg/kg had a marked suppression on the developments of Shay ulcer as well as the aspirin-, stress-, and reserpine-induced gastric lesions.

Gentisuric acid, an Aspirin metabolite and a substrate of α-amidating monooxygenase (PAM), mitigates DNA damage induced by Mitomycin C. [1] [2]

(+)-Leucocyanidin, an isoform of leucocyanidin and potent anti-ulcerogenic agent, has been extracted from Litchi chinensis. This compound exhibits considerable protective properties in rat models against aspirin-induced gastric erosions [1].

1-Salicylate glucuronide is a metabolite of salicylic acid and aspirin .1It is formed from salicylic acid primarily by the UDP-glucuronosyltransferase (UGT) isoform UGT1A9 but also by a variety of other UGT isoforms and from aspirinviasalicylic acid as an intermediate. 1.Kuehl, G.E., Bigler, J., Potter, J.D., et al.Glucuronidation of the aspirin metabolite salicylic acid by expressed UDP-glucuronosyltransferases and human liver microsomesDrug Metab. Dispos.34(2)199-202(2006)

Lipid-derived lipoxins are produced at the site of vascular and mucosal inflammation where they down-regulate polymorphonuclear leukocyte recruitment and function. 15(R)-Lipoxin A4 (15(R)-LXA4) is derived from the aspirin-triggered formation of 15(R)-HETE from arachidonic acid. [1] [2] 15(R)-LXA4 inhibits LTB4-induced chemotaxis, adherence, and transmigration of neutrophils with twice the potency of LXA4 demonstrating activity in the nM range.[2] [3] The anti-inflammatory effects of aspirin may be ascribed in part to the ability of 15(R)-LXA4 to regulate leukocyte function.[4] 15(R)-LXA4 is reported to promote resolution of inflammation in LPS-treated stromal cells derived from intermediate-stage diseased supraspinatus tendons as evidenced by increased expression of the STAT-6 pathway target genes, ALOX15 and CD206.[5]

Luvangetin may have anti-inflammatory activity, it can inhibit NO and PGE2 production in LPS-stimulated BV2 cells. Luvangetin shows significant protection against pylorus-ligated and aspirin-induced gastric ulcers in rats and cold restraint stress-induced

17(R)-Protectin D1 is an aspirin-triggered epimer of the specialized pro-resolving mediator protectin D1 .1It decreases leukotriene B4-induced transendothelial migration of human polymorphonuclear (PMN) neutrophils when used at concentrations ranging from 0.1 to 10 nM. 17(R)-Protectin D1 (0.01-10 ng) reduces the recruitment of neutrophils in a mouse model of TNF-α-induced peritonitis. 1.Serhan, C.N., Fredman, G., Yang, R., et al.Novel proresolving aspirin-triggered DHA pathwayChem. Biol.18(18)976-987(2011)

Docosapentaenoic acid (DPA) is a ω-3 fatty acid found in fish oils. 17-oxo-7(Z),10(Z),13(Z),15(E),19(Z)-docosapentaenoic acid is a metabolite of lipoxygenase-mediated oxidation of DPA that is produced endogenously by aspirin-enhanced COX-2 activity. It has been shown to activate Nrf2-dependent antioxidant gene expression, to act as a PPARγ agonist (EC50 = ~200 nM), and to inhibit pro-inflammatory cytokine and nitric oxide production at biological concentration ranges (5-25 μM).

Body Protection Compound 157 (BPC 157) is a pentadecapeptide derived from BPC, identified in gastric juice, exhibiting diverse biological activities. At 2 µg/ml, BPC 157 enhances primary rat tendon fibroblast cell migration and F-actin formation. Furthermore, doses of 0.01 and 10 µg/kg, intraperitoneally (i.p.), mitigate paw swelling, bone erosion, and mononuclear cell infiltration in the joints of rats with rheumatoid arthritis induced by complete Freund's adjuvant (CFA). It also diminishes gastric ulcer size in rats caused by indomethacin, aspirin, or diclofenac at these doses. Additionally, BPC 157 reduces catalepsy duration and tremor severity in a mouse model of Parkinson's disease triggered by MPTP.

17-oxo-4(Z),7(Z),10(Z),13(Z),15(E),19(Z)-Docosahexaenoic acid is a metabolite of lipoxygenase-mediated oxidation of DHA that is produced endogenously by aspirin-enhanced COX-2 activity. It has been shown to activate Nrf2-dependent antioxidant gene expression, to act as a PPARγ agonist (EC50 = ~200 nM), and to inhibit pro-inflammatory cytokine and nitric oxide production at biological concentration ranges (5-25 μM).

Clopidogrel is an antithrombic compound whose active metabolite is a selective, irreversible antagonist of the platelet purinergic P2Y12 receptor (IC50 = 100 nM). Clopidogrel inhibits ADP-induced platelet aggregation ex vivo and functions as a prodrug whereupon biotransformation to its active metabolite via CYP2C19 in the liver enables its anti-aggregating activity. Marketed under the name Plavix , clopidogrel in combination with aspirin has been shown to be beneficial in the prevention of vascular ischemic events for patients without deficiencies in CYP2C19-related metabolism.

11(R)-HETE is biosynthesized by 11(R)-LOs of the sea urchin, S. purpuratus, and the fresh water hydra, H. vulgaris. The biological activity of 11(R)-HETE relates to oocyte maturation and tentacle regeneration, respectively, in these two species. 11(R)-HETE is also produced when aspirin-treated recombinant COX-2 is incubated with arachidonic acid. Stereochemical assignment of the (R) enantiomer is based on comparison of chiral HPLC retention times to published results.

Phenol-d5 (2,3,4,5,6-d5) is a deuterated compound of Phenol. Phenol has a CAS number of 108-95-2. Phenol, is a toxic, colourless crystalline solid with a sweet tarry odor that resembles a hospital smell. It is commonly used as an antiseptic and disinfectant. It is active against a wide range of micro-organisms including some fungi and viruses, but is only slowly effective against spores. It has been used to disinfect skin and to relieve itching. Phenol is also used in the preparation of cosmetics including sunscreens, hair dyes, and skin lightening preparations. It is also used in the production of drugs (it is the starting material in the industrial production of aspirin), weedkillers, and synthetic resins.

Edoxaban impurity 6 is an impurity of Edoxaban. Edoxaban (DU-176) is a selective, potent and orally active factor Xa (FXa) inhibitor with Kis of 0.561 nM and 2.98 nM for free FXa and prothrombinase, respectively. Edoxaban is an anticoagulant agent and can be used for stroke prevention[1][2]. [1]. Furugohri T, et al. DU-176b, a potent and orally active factor Xa inhibitor: in vitro and in vivo pharmacological profiles. J Thromb Haemost. 2008 Sep;6(9):1542-9.[2]. Mendell J, Lee F, Chen S, The Effects of the Antiplatelet Agents, Aspirin and Naproxen, on Pharmacokinetics and Pharmacodynamics of the Anticoagulant Edoxaban, a Direct Factor Xa Inhibitor. J Cardiovasc Pharmacol. 2013 Apr 23.

Resolvins are a group of polyhydroxylated metabolites of docosahexaenoic acid (DHA) found in the inflammatory exudates of aspirin-treated experimental animals. 17(R)-HDHA is the primary oxygenation product of DHA when exposed to aspirin-inhibited cyclooxygenase-2. 17(R)-HDHA serves as a precursor to resolvins and has intrinsic biological activity, such as the inhibition of TNFα-induced IL-1β expression in human glioma cells.

17(R)-Resolvin D4 (17(R)-RvD4) is an epimer of RvD4, generated through the aspirin-induced modification process.

Resolvin E2 (RvE2) is a member of the specialized pro-resolving mediator (SPM) family of bioactive lipids.1It is produced from eicosapentaenoic acidviaan 18-HEPE intermediate, which is formed by aspirin-acetylated COX-2-mediated oxidation of EPA, by 5-lipoxygenase (5-LO) in human polymorphonuclear (PMN) neutrophils.2,3RvE2 (20 ng/animal) inhibits increases in inflammatory exudate neutrophil infiltration in a mouse model of peritonitis induced by zymosan A .3Hepatic RvE2 levels are increased in mice fed normal chow, as well as in a mouse model of high-fat diet-induced non-alcoholic fatty liver disease (NAFLD), by dietary supplementation with EPA.4Plasma levels of RvE2 are increased by dietary supplementation with fish oil containing ω-3 polyunsaturated fatty acids (PUFAs) in patients with peripheral artery disease or chronic kidney disease.1,5,6 1.Chiang, N., and Serhan, C.N.Specialized pro-resolving mediator network: An update on production and actionsEssays Biochem.64(3)443-462(2020) 2.Tjonahen, E., Oh, S.F., Siegelman, J., et al.Resolvin E2: Identification and anti-inflammatory actions: Pivotal role of human 5-lipoxygenase in resolvin E series biosynthesisChemistry & Biology131193-1202(2006) 3.Sungwhan, F.O., Pillai, P.S., Recchiuti, A., et al.Pro-resolving actions and stereoselective biosynthesis of 18S E-series resolvins in human leukocytes and murine inflammationJ. Clin. Invest.121(2)569-581(2011) 4.Echeverría, F., Valenzuela, R., Espinosa, A., et al.Reduction of high-fat diet-induced liver proinflammatory state by eicosapentaenoic acid plus hydroxytyrosol supplementation: Involvement of resolvins RvE1/2 and RvD1/2J. Nutr. Biochem.6335-43(2019) 5.Ramirez, J.L., Gasper, W.J., Khetani, S.A., et al.Fish oil increases specialized pro-resolving lipid mediators in PAD (the OMEGA-PAD II trial)J. Surg. Res.238164-174(2019) 6.Barden, A.E., Shinde, S., Burke, V., et al.The effect of n-3 fatty acids and coenzyme Q10 supplementation on neutrophil leukotrienes, mediators of inflammation resolution and myeloperoxidase in chronic kidney diseaseProstaglandins Other Lipid Mediat.1361-8(2018)

APHS is a cyclooxygenase-2 (COX-2) inhibitor with anti-inflammatory action. It also more potent than aspirin in the inhibition of COX-1.

Phenol-d6 is a deuterated compound of Phenol. Phenol has a CAS number of 108-95-2. Phenol, is a toxic, colourless crystalline solid with a sweet tarry odor that resembles a hospital smell. It is commonly used as an antiseptic and disinfectant. It is active against a wide range of micro-organisms including some fungi and viruses, but is only slowly effective against spores. It has been used to disinfect skin and to relieve itching. Phenol is also used in the preparation of cosmetics including sunscreens, hair dyes, and skin lightening preparations. It is also used in the production of drugs (it is the starting material in the industrial production of aspirin), weedkillers, and synthetic resins.

15(R)-HETE, a monohydroxy fatty acid, is synthesized from arachidonic acid via aspirin-acetylated COX-2, leading to the formation of specialized pro-resolving mediators 15(R)-lipoxin A4 and B4 through a transcellular mechanism involving 5-lipoxygenase (5-LO). Additionally, this compound is produced by the cytochrome P450 (CYP) isoform CYP2C9 and can be generated from arachidonic acid by COX-1 in human mast cells, where it accumulates due to its resistance to conversion into 15-KETE by 15-hydroxyprostaglandin dehydrogenase (15-PGDH). As an agonist of PPARβ/δ, 15(R)-HETE induces the expression of a target gene in NIH3T3 cells, demonstrating its biological significance.