oxidative-antioxidant

1. Huperzine-B is a efficient inhibitor of human brain AChE. 2. Huperzine-B can enhance ognitive and protect neuro, may be potentially new drug candidates for Alzheimer's disease therapy.

Sinapinic Acid (Synapoic acid) protects the rat liver from CCl4-induced inflammation, most likely by acting as a free radical scavenger and modulator of NF-κB p65 activation and proinflammatory cytokine expression. Sinapic acid with antioxidant role protects cardiac cells and its functions from I/R induced oxidative stress. Sinapic acid is a potentially useful agent for the protection against liver fibrosis and cirrhosis. Sinapic acid prevents the alterations in the levels of lipids and lipoproteins by virtue of its anti-lipidaemic effect in isoproterenol induced myocardial infarcted rats. Sinapic acid ameliorates hyperglycemia through PLC-PKC signals to enhance the glucose utilization in diabetic rats.

1. Oxyresveratro can inhibit tyrosinase activity. 2. Oxyresveratro is useful to trauma models, as toxicity to glia could be beneficial by inhibiting reactive gliosis. 3. Oxyresveratrol (trans-Oxyresveratrol) has antioxidant activity, can reduce neuronal oxidative damage and protect hepatocytes against oxidative stress and mitochondrial dysfunction, which may be associated with activation of Nrf2.

Uric acid sodium is a potent and widely recognized antioxidant with the ability to scavenge oxygen free radicals, helping to maintain blood pressure stability and counteract oxidative stress. It effectively eliminates reactive oxygen species (ROS), such as singlet oxygen and peroxynitrite, and inhibits lipid peroxidation. Additionally, uric acid sodium is closely associated with the pathogenesis of gouty arthritis and the formation of calcium oxalate stones, and it can be used to induce hypertension models.

(±)-Catechin ((±)-Catechin hydrate) hydrate is a natural product,has antioxidant activity and is effective in reducing oxidative stress.

2,6-Di-tert-butyl-4-ethylphenol is a hindered phenol that can be used as an antioxidant to prevent oxidative degradation in plastics, rubber, and oils.

Bacoside A has a possible anticancer activity that could be inducing cell cycle arrest and apoptosis through Notch pathway in GBM in vitro. It exerts cytoprotective efficacy by attenuation of ROS generated through oxidative stress by an increase in the concentration of antioxidant enzymes and sustain membrane integrity which leads to restoring the damage caused by tBHP. Bacoside A can able to inhibit the progression of Experimental Autoimmune Encephalomyelitis (EAE) may be by the inhibition of inflammatory cytokines and chemokine evolved during active EAE. Bacoside A also has vasorelaxation.

Apigenin-7-diglucuronide, a flavonoid glycoside found in various medicinal plants, exhibits anti-inflammatory and antioxidant activities. It protects retinas from bright light-induced photoreceptor degeneration by inhibiting retinal oxidative stress and inflammation.

Butin, the major bioactive flavonoid isolated from Dalbergia odorifera heartwood, possesses oral activity with notable antioxidant, antiplatelet, and anti-inflammatory effects. This compound effectively alleviates myocardial infarction, improves cardiac function, and prevents diabetes-induced cardiac oxidative damage in rats.

Gamma-glutamylcysteine TFA (γ-glutamylcysteine TFA) is a precursor of glutathione (GSH) with antioxidant and anti-inflammatory properties. It alleviates oxidative stress and mitochondrial damage induced by ethanol in hepatocytes by increasing cellular GSH, SOD activity, and mitochondrial membrane potential, protecting cells from alcohol-induced liver disease (ALD) by inhibiting oxidative stress, reducing inflammation, and preventing cell apoptosis.

Isolongifolene ((-)-Isolongifolene), a tricyclic sesquiterpene isolated from Murraya koenigii, exhibits antioxidant, anti-inflammatory, anticancer, and neuroprotective properties. It mitigates Rotenone-induced oxidative stress, mitochondrial dysfunction, and apoptosis by modulating the PI3K/AKT/GSK-3β signaling pathways.

Choerospondin, a dietary flavonoid glycoside isolated from the bark of the southern date palm (Ziziphus jujuba L.), is a potential α-glucosidase inhibitor with antiproliferative, antioxidant, antitumor, and anti-inflammatory activities that enhances the resistance to oxidative stress, and significantly inhibits inflammatory responses by attenuating mitogen-activated protein kinase phosphorylation and nuclear factor-κ B activation.

Cinnamtannin B-1 (LDN 0022358) is an A-type proanthocyanidin contained in several plant species such as Vaccinium vitis-idaea, Laurus nobilis L., Cinnamomum zeylanicum, and Lindera umbellata. It is a potent antioxidant and protective agent against oxidative stress and apoptosis in human platelets. It is a Cox-2 inhibitor.

Oxysophoridine (Sophoridine N-oxide) has a protective effect on focal cerebral ischemic injury through antioxidant and anti-apoptotic mechanisms; it may be a potential neuroprotective agent for cerebral ischemia injury, that the effect may be due to its ability to inhibit oxidative stress and expression of the N-methyl-D-aspartate receptor subunit NR1.Oxysophoridine ameliorates cardiac damage in a rat model of AMI and that this cardioprotection may be linked with its anti-oxidative, anti-apoptotic and anti-inflammatory properties.

[6]-Gingerol ((S)-(+)-[6]Gingerol), an antioxidant, protects HL-60 cells from oxidative stress. It has protective effects for Yous tumors in the pancreas, ovaries, breast tissue, the bowel, among other tissues.

Morroniside would act as a regulator of hepatic inflammatory reactions and lipid metabolism in db/db mice. It exhibits protective effects against diabetic renal damage and human umbilical vein endothelial cells, by inhibiting hyperglycemia and oxidative s

Danshensu has antioxidant activity, can enhance HO-1 expression to suppress 6-OHDA-induced oxidative damage via PI3K/Akt/Nrf2 signaling pathways.

Ajoene is a disulfide that has been found inA. sativumand has diverse biological activities, including antibacterial, anticancer, antiplatelet, and antioxidant properties.1,2,3,4It is active against Gram-positive (MICs = 5-160 µg/ml) and Gram-negative bacteria (MICs = 136-200 µg/ml), as well as yeasts (MICs = 10-20 µg/ml).1Ajoene is cytotoxic to mouse melanoma cells (IC50= 18 µM), as well as human colon, lung, mammary, and pancreatic cancer cells (IC50s = 7-41 µM).2It reduces tumor growth in a B16/BL6 mouse model of melanoma when administered at a dose of 25 mg/kg every other day and decreases the number of lung metastases when administered prior to tumor cell inoculation at doses ranging from 1-25 mg/kg. It inhibits ADP- or collagen-induced platelet aggregation in isolated baboon platelets when used at concentrations ranging from 75 to 150 µg/ml and in platelet-rich plasma isolated from baboons when administered at a dose of 25 mg/kg.3Ajoene (25 mg/kg) prevents thrombus formation on damaged arterial walls in heparinized pigs in anin situmodel of thrombogenesis.5It also reduces high-fat diet-induced hepatic steatosis, histopathological markers of liver damage, thiobarbituric acid reactive substances (TBARS) formation, and protein oxidation in a mouse model of non-alcoholic fatty liver disease (NAFLD).4 1.Naganawa, R., Iwata, N., Ishikawa, K., et al.Inhibition of microbial growth by ajoene, a sulfur-containing compound derived from garlicAppl. Environ. Microbiol.62(11)4238-4242(1996) 2.Taylor, P., Noriega, R., Farah, C., et al.Ajoene inhibits both primary tumor growth and metastasis of B16/BL6 melanoma cells in C57BL/6 miceCancer Lett.239(2)298-304(2006) 3.Teranishi, K., Apitz-Castro, R., Robson, S.C., et al.Inhibition of baboon platelet aggregation in vitro and in vivo by the garlic derivative, ajoeneXenotransplantation10(4)374-379(2003) 4.Han, C.Y., Ki, S.H., Kim, Y.W., et al.Ajoene, a stable garlic by-product, inhibits high fat diet-induced hepatic steatosis and oxidative injury through LKB1-dependent AMPK activationAntioxid. Redox Signal.14(2)187-202(2011) 5.Apitz-Castro, R., Badimon, J.J., and Badimon, L.A garlic derivative, ajoene, inhibits platelet deposition on severely damaged vessel wall in an in vivo porcine experimental modelThromb. Res.75(3)243-249(1994)

Salazinic Acid, a compound extracted from the Lichen Hypotrachyna cirrhata, has potential antioxidant activity and attenuates male sexual dysfunction and testicular oxidative damage in streptozotocin-induced diabetic albino rats.

5-Hydroxyoxindole has been identified as a urinary metabolite of indole, which is produced from tryptophane via the tryptophanase activity of gut bacteria [1]. 5-Hydroxyoxindole has lipid peroxidation inhibition activity and free radical DPPH scavenging

Didymin (Neoponcirin) has antioxidant property. Didymin induces apoptosis by inhibiting N-Myc and upregulating RKIP in neuroblastoma, may used for neuroblastoma therapy. Didymin may be a potential therapeutic molecule for the treatment of neurodegenerative disorders associated with oxidative stress.

2-Hydroxybenzylamine, a potent small molecule scavenger of IsoLGs, sequesters the reactive species as inert adducts. 2-Hydroxybenzylamine may be used to decrease early recurrence of atrial fibrillation and other atrial arrhythmias following atrial fibrillation ablation by decreasing IsoLG adducts with native biomolecules.

gamma-Linolenic acid (gamolenic acid), is an unsaturated fatty acid synthesized from linoleic acid (LA) by the enzyme delta-6-desaturase. Research on hepatocellular cell lines has shown γ-Linolenic Acid to have induced reactive oxygen species generation including lipid peroxidation, cell growth inhibition, and heme oxygenase-1 production for antioxidant protection against oxidative stress. Further experiments have noted that γ-Linolenic acid inhibits inflammatory responses through inactivation of NFκB and activator protein-1 by suppressed oxidative stress.

Demethyleneberberine, which is composed of a potential antioxidant structure, could penetrate the membrane of mitochondria and accumulate in mitochondria either in vitro or in vivo.Demethyleneberberine suppresses CYP2E1, hypoxia inducible factor α, and inducible nitric oxide synthase, which contributes to oxidative stress and restored sirtuin 1/AMP-activated protein kinase/peroxisome proliferator-activated receptor-γ coactivator-1α pathway-associated fatty acid oxidation in chronic ethanol-fed mice.