potassiumchannel

Nigericin sodium salt is an antibiotic, an NLRP3 activator, and a cationic ion carrier. Nigericin sodium triggers the activation of the NALP3 inflammasome, which inhibits Golgi function and suppresses the growth of Gram-positive bacteria.

Quinidine hydrochloride monohydrate is an optical isomer of quinine, extracted from the bark of the Cinchona tree and similar plant species. It prolongs cellular action potential and decreases automaticity. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.

Quinine is a natural cinchona alkaloid that has been used for centuries in the prevention and therapy of malaria. Quinine is also used for idiopathic muscle cramps. Quinine therapy has been associated with rare instances of hypersensitivity reactions which can be accompanied by hepatitis and mild jaundice.

Ursodeoxycholic acid (UDCA) is a potent inhibitor of liver-specific fatty acid transporter 5 (FATP5). Ursodeoxycholic acid inhibits cholesterol absorption and is used to dissolve gallstones.

Reserpine (Serpalan) is an alkaloid isolated from the root of Rauwolfia serpentina. As an inhibitor of vesicular monoamine transporter 2 (VMAT2), it suppresses the uptake of norepinephrine into storage vesicles, leading to depletion of catecholamines and serotonin in central and peripheral nerve terminals. It has antihypertensive and antipsychotic effects and can be used to induce gastric ulcer and depression models.

Tannic acid (Gallotannic acid) is a novel hERG channel blocker.

Chenodeoxycholic acid (CDCA) is a bile acid that inhibits 11β-HSD2 with an IC50 value of 22 mM. Chenodeoxycholic acid acts as a detergent to dissolve fat for intestinal absorption and is reabsorbed by the small intestine. Chenodeoxycholic acid is used as a choledocholithiasis, choledocholithiasis and laxative, as well as to prevent or dissolve gallstones.

Novobiocin Sodium (Albamycinsodium) binds to DNA gyrase and blocks adenosine triphosphatase (ATPase) activity. Novobiocin sodium is an antibiotic compound derived from Streptomyces niveus. It has a chemical structure similar to coumarin.

Taurocholic acid sodium salt hydrate is a bile acid sodium salt hydrate that participates in fat emulsification and can be used to establish pancreatitis models.

Ifenprodil is a selective NMDA receptor (glutamate) antagonist.

Tetrandrine (Sinomenine A) is a naturally occurring biphenylisoquinoline alkaloid, a calcium channel inhibitor. Tetrandrine inhibits voltage-gated calcium channels (ICa) and Ca2+-activated potassium channels.

Isosteviol ((-)-Isosteviol), a common natural sweetener, belongs to tetracyclic diterpene glycosides. The pharmacology researches have suggested that stevioside and its hydrolysis products, steviol, isosteviol and steviolbioside, have many biological activities, such as reducing blood glucose, lowering blood pressure, anti-inflammation, anti-tumor, anti-diarrhea, antibacterium, immunoregulation, etc.

2,2,2-Trichloroethanol, the active form of the sedative hypnotic drug chloral hydrate, is an agonist for the nonclassical K2P channels TREK-1 (KCNK2) and TRAAK (KCNK4). It activates a nonclassical potassium channel in cerebrovascular smooth muscle and dilates the middle cerebral artery [1]. [1]. Nikhil K Parelkar, et al. 2,2,2-trichloroethanol Activates a Nonclassical Potassium Channel in Cerebrovascular Smooth Muscle and Dilates the Middle Cerebral Artery. J Pharmacol Exp Ther. 2010 Mar;332(3):803-10.

Quinine hydrochloride dihydrate (Quinine HCl Dihydrate) is a white crystalline K+ channel blocker, used to treat malaria.

Cholesterol Myristate (Cholesteryl Myristate) is a natural steroid found in traditional Chinese medicine that interacts with various ion channels, including the GABAA receptor, nicotinic acetylcholine receptor, and the inward-rectifier potassium ion channel.

(±)-Naringenin (Naringenine) is a natural product. It displays vasorelaxant effect on endothelium-denuded vessels via the activation of BKCa channels in myocytes.

Quinine sulfate dihydrate plays a major role in potassium channel blockers. It is also used as an antimalarial, anticholinergic, antihypertensive and a hypoglycemic agent. It inhibits mitochondrial ATP-regulated potassium channel. It is also used to study the metabolism of biocrystalized heme, hemozoin, in malarial parasites and to study the toxicity of heme (FP)-complexes.

Guanfu base A is a potent noncompetitive CYP2D6 inhibitor (Ki: 1.20 μM in HLMs; Ki: 0.37 μM for rCYP2D6). It also inhibits HERG channel current.

Paxilline is an indole alkaloid mycotoxin from *Penicillium paxilli*, acting as a potent BK channel inhibitor via an almost exclusively closed-channel block mechanism. Paxilline possesses significant anticonvulsant activity.

Hydroquinidine ((+)-Hydroquinidine) is an organic compound, used as an antiarrhythmic agent.

Neosolaniol, a type A trichothecene mycotoxin produced by Fusarium species, strongly induces an anorectic (loss of appetite) response.

Daurisoline ((R,R)-Daurisoline) is a hERG inhibitor. Daurisoline is also an autophagy blocker.

20(S)-Ginsenoside Rg3 (Rg3) possess an ability to inhibit the lung metastasis of tumor cells via inhibition of the adhesion and invasion of tumor cells. It inhibits the proliferation of human umbilical vein endothelial cells(HUVEC) and has anti-angiogenesis activities.

Loureirin B can downregulate the expression of fibrosis-related molecules by regulating MMPs and TIMPs levels, inhibit scar fibroblast proliferation and suppress TGF-β1-induced fibrosis, during which TGF-β1/Smad2/3 pathway is likely involved.