title: [Effects of matrine, oxymatrine and resveratrol on HERG channel expression].
abstract: Because HERG potassium channel has important effects on both proarrhythmia and antiarrhythmia, we use immunofluorescence and Western blotting methods to detect the expression of HERG channel of HERG-HEK cells in different concentrations of matrine, oxymatrine and resveratrol. The findings showed that both matrine (1 micromol x L(-1) ) and oxymatrine ( 1micromol x L (-1) ) increased HERG channel expression ( n = 5, P < 0. 05 ) , while matrine (100 micromol x L(-1) ) decreased HERG channel expression ( n = 5, P < 0. 05), resveratrol didn't affect HERG channel expression. In conclusion, different concentrations of matrine and oxymatrine affect HERG channel expression, while there is no relationship between resveratrol and HERG channel expression. It provides a theoretical support for the safety and mechanism of anti-arrhythmic drugs.
authors.affiliation: Department of Pharmacology, Bio-pharmaceutical Key Laboratory of Heilongjiang Province-Incubator of State Key Laboratory, Harbin Medical University, Harbin 150086, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.forename: Juan
authors.initials: J
authors.lastname: Du
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Hong-li
authors.initials: HL
authors.lastname: Sun
authors.forename: Zhen-wei
authors.initials: ZW
authors.lastname: Pan
authors.forename: Yan-jie
authors.initials: YJ
authors.lastname: Lu
authors.forename: Bao-xin
authors.initials: BX
authors.lastname: Li
authors.forename: Bao-feng
authors.initials: BF
authors.lastname: Yang
mesh_terms: D000470:Alkaloids / Q000494:pharmacology*; D000889:Anti-Arrhythmia Agents / Q000494:pharmacology; D015153:Blotting, Western; D002460:Cell Line; D004305:Dose-Response Relationship, Drug; D000072237:ERG1 Potassium Channel; D051638:Ether-A-Go-Go Potassium Channels / Q000235:genetics / Q000378:metabolism* / Q000502:physiology; D005455:Fluorescent Antibody Technique; D006801:Humans; D008564:Membrane Potentials / Q000187:drug effects; D018408:Patch-Clamp Techniques; D010946:Plants, Medicinal / Q000737:chemistry; D011807:Quinolizines / Q000494:pharmacology*; D000077185:Resveratrol; D029909:Sophora / Q000737:chemistry; D013267:Stilbenes / Q000494:pharmacology*; D000093842:Matrines
chemical_list: D000470:Alkaloids; D000889:Anti-Arrhythmia Agents; D000072237:ERG1 Potassium Channel; D051638:Ether-A-Go-Go Potassium Channels; C000606913:KCNH2 protein, human; D011807:Quinolizines; D013267:Stilbenes; C037573:oxymatrine; D000077185:Resveratrol; D000093842:Matrines