目录号 | 产品详情 | 靶点 | |
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T36501 | |||
CYPMPO is a free radical spin trap with excellent trapping capabilities toward hydroxyl and superoxide radicals in biological and chemical systems. Decay of the superoxide adduct of CYPMPO proceeds in an apparent first order fashion with half-lives of 15 and 51 minutes in a UV-illuminated hydrogen peroxide solution and a hypoxanthine/xanthine oxidase system, respectively. CYPMPO traps superoxide radicals generated by bovine neutrophils as effectively as DEPMPO.[1] The high melting point (126°C), low hygroscopic properties, and long shelf-life in aqueous solutions offer significant practical advantages for use of CYPMPO over DEPMPO and DMPO. | |||
T79712 | |||
TPH1-IN-1(compound 40),一种黄嘌呤衍生物,作为色氨酸羟化酶TPH1的抑制剂,显示出110.1 nM的IC50值。该化合物展现了优异的体外活性以及在肝微粒体中的稳定性,并且能有效抑制T3-L1细胞的脂肪细胞分化。 | |||
T72594 | |||
Broussochalcone A 是一种具有抗氧化和抑制黄嘌呤氧化酶(IC50=2.21 μM)功能的化合物,能清除自由基,抑制铁诱导的脂质过氧化和脂多糖(LPS)激活的巨噬细胞中一氧化氮(NO)的合成。此外,Broussochalcone A 通过增加ROS水平和激活FOXO3信号通路,诱导人肾癌细胞的凋亡(Apoptosis)。 | |||
T70974 | |||
Cipamfylline is a xanthine, a theophylline analogue, and is a potent and selective inhibitor of phosphodiesterase type 4 (PDE-4). Cipamfylline was tested in patients with a diagnosis of atopic dermatitis and in two human models of acute and chronic irritant contact dermatitis. The outcome of the study revealed that cipamfylline was more effective than vehicle in treating atopic dermatitis, but less effective than a group II steroid, hydrocortisone-17-butyrate both in the treatment of atopic dermatitis and irritant contact dermatitis. The absorption of cipamfylline and the subsequent systemic exposure might be the reason why further clinical studies with higher doses of cipamfylline have not been published. | |||
T70097 | |||
Acefylline piperazine is a stimulant drug of the xanthine chemical class. It acts as an adenosine receptor antagonist. Acephylline piperazine is a theophylline derivative with a direct bronchodilator action. It has the advantages over theophylline in being far less toxic and producing minimal gastric irritation. It is indicated for the treatment of asthma, emphysema, acute and chronic bronchitis associated with bronchospasm.Acefylline relaxes smooth muscles, relieves bronchospasm & has a stimulant effect on respiration. It stimulates the myocardium & central nervous system, decreases peripheral resistance & venous pressure & causes diuresis. The mechanism of action is still not clear, inhibition of phosphodiesterase with a resulting increase in intracellular cyclic AMP does occur, but not apparently at concentrations normally used for clinical effect. Other proposed mechanisms of action include adenosine receptor antagonism, prostaglandin antagonism & effects on intracellular...... | |||
T60935 | |||
H-Tyr-Phe-OH (L-Tyrosyl-L-phenylalanine) 可用作区分良性甲状腺结节和甲状腺癌的生物标志物。H-Tyr-Phe-OH 是一种口服活性的血管紧张素转换酶抑制剂,在50 μM 时抑制率为 48%。H-Tyr-Phe-OH 具有黄嘌呤氧化酶抑制活性 (降低尿酸) ,可调节中性粒细胞样细胞中 IL-8 的产生。 | |||
T75074 | |||
6-Methoxypurine-9-β-D-5’(R)-C-methylriboside 是一种嘌呤碱基,属于次黄嘌呤似物,主要在肌肉组织中发现。作为黄嘌呤在嘌呤氧化酶作用下的代谢产物,次黄嘌呤具备显著的抗炎性质,并可作为内源性 poly(ADP-ribose) polymerase (PARP) 的抑制剂。其通过抑制 PARP 活性,防止过氧亚硝酸盐引起的线粒体去极化及次级超氧化物的产生,展现出细胞保护作用。同时,次黄嘌呤也被用作缺氧的生物标志物。 | |||
T36660 | |||
Olsalazine-13C6is intended for use as an internal standard for the quantification of olsalazine by GC- or LC-MS. Olsalazine is an orally bioavailable prodrug form of the anti-inflammatory agent 5-aminosalicylic acid that is cleaved by bacterial azo reductases in the gut to generate active 5-ASA.1In vitro, olsalazine increases ion transport in isolated rabbit distal ileum when applied to the luminal side (ED50= 0.3 mM) and stimulates fluid transport in rat jejunum when used at a concentration of 5 mM.2,3Olsalazine (150 mg/kg for 8 days) improves stool consistency and decreases occult and gross bleeding as well as myeloperoxidase (MPO) activity and leukotriene B4levels in colon tissue in a mouse model of acute colitis induced by dextran sulfate .4Olsalazine also inhibits bovine xanthine oxidasein vitro(IC50= 3.4 mg/L) and lowers serum uric acid levels in a mouse model of hyperuricemia induced by oxonic acid when administered at a dose of 20 mg/kg.5Formulations containing olsalazine have been used in the treatment of inflammatory bowel disease (IBD) and ulcerative colitis. 1.Nugent, S.G., Kumar, D., Rampton, D.S., et al.Intestinal luminal pH in inflammatory bowel disease: Possible determinants and implications for therapy with aminosalicylates and other drugsGut48(4)571-577(2001) 2.Pamukcu, R., Hanauer, S.B., and Chang, E.B.Effect of disodium azodisalicylate on electrolyte transport in rabbit ileum and colon in vitro. Comparison with sulfasalazine and 5-aminosalicylic acidGastroenterology95(4)975-981(1988) 3.Mohsen, A.Q.M., Mulvey, D., Priddle, J.D., et al.Effects of olsalazine in the jejunum of the ratGut28(3)346-352(1987) 4.Murthy, S., Murthy, N.S., Coppola, D., et al.The efficacy of BAY y 1015 in dextran sulfate model of mouse colitisInflamm. Res.46(6)224-233(1997) 5.Niu, Y., Li, H., Gao, L., et al.Old drug, new indication: Olsalazine sodium reduced serum uric acid levels in mice via inhibiting xanthine oxidoreductase activityJ. Pharmacol. Sci.135(3)114-120(2017) |
目录号 | 产品名/同用名 | 种属 | 表达系统 | ||
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TMPY-02464 | Catalase/CAT Protein, Human, Recombinant (His) | Human | Baculovirus-Insect Cells | ||
Catalase is a ubiquitously expressed enzyme that catalyzes the decomposition of hydrogen peroxide to water and oxygen. It is a tetramer of four polypeptides chains containing four porphyrin heme groups that allow the enzyme to react with the hydrogen peroxide. The optimum PH of human catalase is approximately 7 and the optimum temperature is at 37 degree. Both the PH optimum and temperature for other catalases varies depending on the species. Catalase can be inhibited by a flux of O2-generated in situ by the aerobic xanthine oxidase reaction. This inhibition of catalase by O2-provides the basis for a synergism between superoxide dismutase and catalase.Such synergisms have been observed in vitro and may be significant in vivo. Catalase is used in the food industry for removing hydrogen peroxide from milk prior to cheese production. Another use is in food wrappers where it prevents food from oxidizing. Catalase is also used in the textile industry, removing hydrogen peroxide from fabrics to make sure the material is peroxide-free.
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TMPJ-00764 | Catalase/CAT Protein, Human, Recombinant | Human | E. coli | ||
Catalase (CAT) is a member of the catalase family. It exists as a homotetramer that occurs in almost all aerobically respiring organisms and serves to protect cells from the toxic effects of hydrogen peroxide. Catalase is localized in the peroxisome. Catalase promotes growth of cells including T-cells, B-cells, myeloid leukemia cells, melanoma cells, mastocytoma cells, and normal and transformed fibroblast cells. Defects in CAT are the cause of acatalasemia which is characterized by absence of catalase activity in red cells and is associated with ulcerating oral lesions.
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