扎達維林

??【編號】：127987

??【產(chǎn)品名稱】：扎達維林

??【規(guī)格】：10MG

??【用途】：

　　扎達維林

　　Product Name： Zardaverine

　　CAS號：101975-10-4

　　分子式：C12H10F2N2O3

　　分子量：268.22

　　介紹： Zardaverine

　　貯存：儲存溫度-20°C

　　可溶性： DMSO

　　生化和生理學(xué)機理：

　　Zardaverine is a newly developed dual-selective phosphodiesterase (PDE) III and IV inhibitor. Zardaverine inhibited the cyclic GMP-inhibitable PDE III from human platelets and the rolipram-inhibitable PDE IV from canine trachea and human polymorphonuclear (PMN) cells with IC50-values of 0.58, 0.79 and 0.17 μM, respectively. The pyridazinone derivative affected the calmodulin-stimulated PDE I, the cyclic GMP-stimulated PDE II and the cyclic GMP-specific PDE V only marginally at concentrations up to 100μM. Zardaverine inhibits the ADP-induced aggregation of human platelets with an IC50 of 1.6 μM. This inhibition was synergistically increased by activators of adenylate cyclase such as PGE1 and forskolin. In human PMN cells, Zardaverine inhibited the zymosan-induced superoxide anion generation with an IC50 of 0.40 μM. Again, this effect was increased by activators of adenylate cyclase. Zardaverine acted in synergy with the adenylate cyclase activators prostaglandin E2 and CG 4203, a prostacyclin analog, and super-additive effects of combinations were observed. Zardaverine and dexamethasone prevent bronchial eosinophilia and neutrophilia with similar dosage of 30 microM/kg orally, suggesting that this PDE III/IV inhibitor may be useful for both, bronchorelaxation and reduction of inflammation in asthma therapy.

上一篇：齊拉西酮		下一篇：巴洛沙星，≥99％

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