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Levosimendan (OR1259) is a calcium sensitizer used in the management of acutely decompensated congestive heart failure. It increases the sensitivity of the heart to calcium, thus increasing cardiac contractility without a rise in intracellular calcium. Levosimendan exerts its effect by increasing calcium sensitivity of myocytes by binding to cardiac troponin C in a calcium-dependent manner.
Pack Size | Price | Availability | Quantity |
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25 mg | $31 | In Stock | |
50 mg | $45 | In Stock | |
100 mg | $61 | In Stock | |
200 mg | $103 | In Stock | |
500 mg | $237 | In Stock |
Description | Levosimendan (OR1259) is a calcium sensitizer used in the management of acutely decompensated congestive heart failure. It increases the sensitivity of the heart to calcium, thus increasing cardiac contractility without a rise in intracellular calcium. Levosimendan exerts its effect by increasing calcium sensitivity of myocytes by binding to cardiac troponin C in a calcium-dependent manner. |
In vitro | Levosimendan caused contraction and relaxation of failing human cardiomyocytes, with a mean maximum increase in twitch tension of 47% at 0.8 μM Levosimendan.Levosimendan induced a rapid dose-dependent increase in hemodynamic functions in patients with compensated heart failure.Levosimendan caused a significant hyperpolarization (EPS) of resting potential (EPS) in rat mesenteric artery myocytes. The resting potential of rat mesenteric artery myocytes was markedly hyperpolarized by Levosimendan (EC50: 2.9 μM), with a maximal effect at 10 μM (19.5 mV), which may be produced by activation of glibenclamide-sensitive K+ channels.Levosimendan (3 μM) reduced the Ca50 from 2.73 μM to 1.19 μM. |
In vivo | Levosimendan caused contraction and relaxation of failing human cardiomyocytes, with a mean maximum increase in twitch tension of 47% at 0.8 μM Levosimendan.Levosimendan induced a rapid dose-dependent increase in hemodynamic functions in patients with compensated heart failure.Levosimendan caused a significant hyperpolarization (EPS) of resting potential (EPS) in rat mesenteric artery myocytes. The resting potential of rat mesenteric artery myocytes was markedly hyperpolarized by Levosimendan (EC50: 2.9 μM), with a maximal effect at 10 μM (19.5 mV), which may be produced by activation of glibenclamide-sensitive K+ channels.Levosimendan (3 μM) reduced the Ca50 from 2.73 μM to 1.19 μM. |
Alias | OR1855, OR1259 |
Molecular Weight | 280.28 |
Formula | C14H12N6O |
Cas No. | 141505-33-1 |
Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. | |||||||||||||||||||||||||||||||||||
Solubility Information | Ethanol: < 1 mg/mL (insoluble or slightly soluble) DMSO: 45 mg/mL (160.55 mM), Sonication is recommended. H2O: < 1 mg/mL (insoluble or slightly soluble) | |||||||||||||||||||||||||||||||||||
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