Isaev D, Susan Yang KH, Oz M. Additive Effects of Citrus Juice Flavonoid Naringenin and Statins on HERG Channels Expressed in Xenopus Oocytes.
Med Princ Pract 2024;
33:000538780. [PMID:
38593751 PMCID:
PMC11324219 DOI:
10.1159/000538780]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/08/2024] [Indexed: 04/11/2024] Open
Abstract
OBJECTIVE
Naringenin, a major flavonoid found in citrus juice, has been shown to inhibit HERG channels and cause QT prolongation. Statins, the most commonly used class of cholesterol reducing drugs, have also been reported to inhibit HERG channels and prolong QT interval in patients using these drugs. However, the interaction between naringenin and statins on the function of HERG channels has not been studied.
MATERIALS AND METHODS
In the present study, we expressed HERG channels in Xenopus oocytes and tested the effects of naringenin and statins separately and combined on HERG channels.
RESULTS
When 30 µM naringenin was added to statins (1 µM rosuvastatin or 3 µM atorvastatin), significantly greater inhibition of HERG was demonstrated, compared to the inhibition caused by statins alone.
CONCLUSIONS
The results indicate that an additive interaction occurs between naringenin and statins; this could pose an increased risk of arrhythmias by decreasing repolarization reserve.
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