Document Detail

Effects of Chelidonium majus extracts and major alkaloids on hERG potassium channels and on dog cardiac action potential - a safety approach.
MedLine Citation:
PMID:  25481375     Owner:  NLM     Status:  Publisher    
Chelidonium majus or greater celandine is spread throughout the world, and it is a very common and frequent component of modern phytotherapy. Although C. majus contains alkaloids with remarkable physiological effect, moreover, safety pharmacology properties of this plant are not widely clarified, medications prepared from this plant are often used internally. In our study the inhibitory effect of C. majus herb extracts and alkaloids on hERG potassium current as well as on cardiac action potential were investigated. Our data show that hydroalcoholic extracts of greater celandine and its alkaloids, especially berberine, chelidonine and sanguinarine have significant hERG potassium channel blocking effect. These extracts and alkaloids also prolong the cardiac action potential in dog ventricular muscle. Therefore these compounds may consequently delay cardiac repolarization, which may result in the prolongation of the QT interval and increase the risk of potentially fatal ventricular arrhythmias.
Péter Orvos; László Virág; László Tálosi; Zsuzsanna Hajdú; Dezső Csupor; Nikoletta Jedlinszki; Tamás Szél; András Varró; Judit Hohmann
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-3
Journal Detail:
Title:  Fitoterapia     Volume:  -     ISSN:  1873-6971     ISO Abbreviation:  Fitoterapia     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-7     Completed Date:  -     Revised Date:  2014-12-8    
Medline Journal Info:
Nlm Unique ID:  16930290R     Medline TA:  Fitoterapia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014. Published by Elsevier B.V.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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