Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Paraxanthine (1,7-dimethylxanthine) 是一种 caffeine 的代谢物,能够刺激Ryanodine 受体通道来抑制多巴胺能细胞的死亡。
规格 | 价格/CNY | 货期 | 数量 | |
---|---|---|---|---|
5 mg | ¥ 231 | 现货 | ||
10 mg | ¥ 331 | 现货 | ||
25 mg | ¥ 587 | 现货 | ||
50 mg | ¥ 840 | 现货 | ||
100 mg | ¥ 1,220 | 现货 | ||
1 mL * 10 mM (in DMSO) | ¥ 646 | 现货 |
产品描述 | Paraxanthine (1,7-dimethylxanthine) is a metabolite of caffeine (sc-202514) which functions as an adenosine receptor ligand and a PARP-1 inhibitor in pulmonary epithelial cells. Studies suggest that Paraxanthine is structurally similar to caffeine and possibly mediates the physiological effects of caffeine. Also Paraxanthine acts as a competitive phosphodiesterase inhibitor, which increases intracellular cAMP, activates PKA, inhibits TNF-α and leukotriene synthesis. In addition, Paraxanthine acts as a Na+/K+ ATPase enzymatic effector. |
体外活性 | When Paraxanthine (PX) is applied to the cultures for a prolonged period, the number of TH+neurons is augmented in a dose-dependent manner. The effect of Paraxanthine, already significant at 100 μM, increases gradually and remains optimal between 800 and 1000 μM, at 10 DIV. Counts of TH+neurons performs at different stages of maturation of the cultures indicate that Paraxanthine most likely prevents DA cell loss. GDNF, a prototypical trophic factor for DA neurons, is only slightly more effective than 800 μM Paraxanthine in rescuing DA neurons after 10 and 16 DIV when used at an optimal concentration of 20 ng/mL. About 80% of caffeine is N3-demethylated to form Paraxanthine, Unlike Paraxanthine, caffeine is poorly effective in protecting DA neurons from death For example, at a concentration of 800 μM, caffeine produces only a modest 40% increase in the number of TH+ cells at 10 DIV, whereas the same concentration of Paraxanthine optimally promotes DA cell survival (169% increase)[1]. |
别名 | 1,7-二甲基黄嘌呤, 1,7-DIMETHYLXANTHINE |
分子量 | 180.16 |
分子式 | C7H8N4O2 |
CAS No. | 611-59-6 |
Powder: -20°C for 3 years | In solvent: -80°C for 1 year
H2O: 1mg/mL
DMSO: 5.5 mg/mL (30.53 mM), Sonication is recommended.
可选溶剂 | 浓度 体积 质量 | 1 mg | 5 mg | 10 mg | 25 mg |
DMSO | 1 mM | 5.5506 mL | 27.7531 mL | 55.5062 mL | 138.7655 mL |
5 mM | 1.1101 mL | 5.5506 mL | 11.1012 mL | 27.7531 mL | |
10 mM | 0.5551 mL | 2.7753 mL | 5.5506 mL | 13.8766 mL | |
20 mM | 0.2775 mL | 1.3877 mL | 2.7753 mL | 6.9383 mL |
对于不同动物的给药剂量换算,您也可以参考 更多...
请在以下方框中输入您的动物实验信息后点击计算,可以得到母液配置方法和体内配方的制备方法: 比如您的给药剂量是10 mg/kg,每只动物体重20 g,给药体积100 μL,一共给药动物10 只,您使用的配方为5% DMSO+30% PEG300+5% Tween 80+60% ddH2O。那么您的工作液浓度为2 mg/mL。
母液配置方法:2 mg 药物溶于 50 μL DMSO (母液浓度为 40 mg/mL), 如您需要配置的浓度超过该产品的溶解度,请先与我们联系。
体内配方的制备方法:取 50 μL DMSO 主液,加入 300 μL PEG300, 混匀澄清,再加 50 μL Tween 80,混匀澄清,再加 600 μL ddH2O, 混匀澄清。
您可能有的问题的答案可以在抑制剂处理说明中找到,包括如何准备库存溶液,如何存储产品,以及基于细胞的分析和动物实验需要特别注意的问题。
Paraxanthine 611-59-6 Metabolism Endogenous Metabolite 1,7-二甲基黄嘌呤 inhibit Inhibitor 1,7-DIMETHYLXANTHINE inhibitor