In Vivo (Add solvents to the product individually and in order.)
Homogeneous suspension
CMC-NA
≥5mg/ml
Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)
Preparing Stock Solutions
Biological Activity
Description
Nisoldipine (Sular, BAY K 5552) is a calcium channel blocker belonging to the dihydropyridines class, specific for L-type Cav1.2 with IC50 of 10 nM.
Targets
L-type Cav1.2
10 nM
In vitro
Nisoldipine is a potent blocker of L-type calcium channels. This compound binds directly to inactive calcium channels stabilising their inactive conformation similar to other DHP CCBs. It displays selectivity for arterial smooth muscle cells due to a great number of inactive channels and the α1 subunit of the channel. This chemical is about 30 times less selective for delayed-rectifier K+ channels than for L-type Ca2+ channels, which inhibits IKr (rapidly activating delayed-rectifier K+ current) with IC50 of 23 μM, and IKs (slowly activating delayed-rectifier K+ current) with IC50 of 40 μM in guinea-pig ventricular myocytes. It also displays antioxidant potency with IC50 of 28.2 μM both before and after the addition of active oxygen. This is tested by means of rat myocardial membrane lipid peroxidation with a nonenzymatic active oxygen-generating system (DHF/FeC13-ADP).
In Vivo
Nisoldipine decreases arterial smooth muscle contractility and subsequent vasoconstriction by inhibiting the influx of calcium ions through L-type calcium channels. This results in vasodilation and an overall decrease in blood pressure, based on which this compound is used to treat mild to moderate essential hypertension, chronic stable angina and Prinzmetal's variant angina. It shows some ability in patients with Timothy syndrome having Cav1.2 missense mutation G406R with IC50 of 267 nM, which is helpful to treat TS.
Features
A member of the dihydropyridine (DHP) class of calcium channel blockers (CCBs), the most widely used class of CCBs.
CHO cells expressing the subunit of the voltage-dependent L-type Ca2+ channel are cultured in medium without serum in the presence of different concentrations of Nisoldipine. Then Ca2+ channel current elicited from a holding potential of -100 mV or -50 mV is recorded at room temperature with the whole-cell configuration of the patch-clamp method using the List EPC-7 patch-clamp amplifier and pClamp software. The concentration of this compound inhibiting 50% of the specific binding represents IC50.
The myocytes are bathed in normal Tyrode's solution, held at -80 mV, and depolarised after 200-ms prepulses (-40mV) to more positive potentials for 500 ms at 0.1 Hz, tail currents are recorded on repolarisations to -40mV. The myocytes are exposed to 10-100 mM Nisoldipine for 8-10 minutes. Then the whole-cell membrane currents are recorded using an EPC-7 amplifier.
Calenduloside E protects against myocardial ischemia-reperfusion injury induced calcium overload by enhancing autophagy and inhibiting L-type Ca2+ channels through BAG3
[ Biomed Pharmacother, 2022, 145:112432]
Trypsin-Mediated Sensitization to Ferroptosis Increases the Severity of Pancreatitis in Mice
[ Cell Mol Gastroenterol Hepatol, 2021, S2352-345X(21)00196-X]
Calcium channel blocker amlodipine besylate therapy is associated with reduced case fatality rate of COVID-19 patients with hypertension
[ Cell Discov, 2020, 6(1):96]
Calenduloside E suppresses calcium overload by promoting the interaction between L-type calcium channels and Bcl2-associated athanogene 3 to alleviate
[ Journal of Advanced Research, 2020, 10.1016/j.jare.2020.10.005]
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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.
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