Senazodan是一种Ca2+感光剂,同时可抑制PDEIII的活性。
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Senazodan is a Ca2+ sensitiser, and also shows inhibition effect on PDE III.
Senazodan seems to affect directly the actin-myosin crossbridge kinetics, and increase myosin ATPase activity[1]. Senazodan produces a concentration-dependent increase in tension development. Senazodan enhance Ca2+ binding to myofilaments and to purified cardiac troponin C. Senazodan also enhances contractility in guinea-pig papillary muscles by inhibiting PDE III[2].
[1]. Lehtonen LA, et al. Pharmacokinetics and pharmacodynamics of intravenous inotropic agents. Clin Pharmacokinet. 2004;43(3):187-203. [2]. Erhardt L. An emerging role for calcium sensitisation in the treatment of heart failure. Expert Opin Investig Drugs. 2005 Jun;14(6):659-70.
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