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논문 기본 정보

자료유형
학술저널
저자정보
하혜경 (한국한의학연구원) 이시온 (대구경북첨단의료산업진흥재단) 김동현 (대구경북첨단의료산업진흥재단) 서창섭 (한국한의학연구원) 신현규 (한국한의학연구원)
저널정보
대한한의학회 대한한의학회지 대한한의학회지 제42권 제3호
발행연도
2021.9
수록면
44 - 55 (12page)

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Objectives: As the use of herbal medicinal products (HMPs) increases worldwide, systematic verification of the safety of HMPs is required. The induction of cardiotoxicity is one of the major factors in post-approval withdrawal of medicinal products, and drug-induced cardiotoxicity assessment is emerging as an important step in drug development. In the present study, we evaluated human ether-à-go-go-related gene (hERG) potassium channel-related cardiotoxicity to predict the risk of cardiac arrhythmia in thirteen herbal medicines known to have cardiac toxicity.
Methods: We measured the inhibition rate of hERG potassium channel activity of 13 medicinal herbal extracts in hERG-expressing HEK 293 cells using an automated patch-clamping system. Quinidine was used as a positive control for inhibition of hERG activity.
Results: Extracts of Evodiae Fructus, Strychni Semen, and Corydalis Tuber potently inhibited the activity of hERG, and IC50 values were 3.158, 19.87, and 41.26 μg/mL, respectively. Cnidi Fructus, Ephedra Herba, Lithospermi Radix, Polygoni Multiflori Radix, Visci Ramulus et Folium, Asiasari Radix et Rhizoma, and Scolopendra weakly inhibited hERG activity, and the IC<SUB>50</SUB> value for each herbal medicine was more than 400 μg/mL. Aconiti Kusnezoffii Tuber and two types of Aconiti Lateralis Radix Preparata (Po and Yeom) had weak inhibitory activity against hERG, and the IC<SUB>50</SUB> values were more than 700 μg/mL. The IC<SUB>50</SUB> value of quinidine against hERG was 1.021 μM.
Conclusion: Evodiae Fructus, Strychni Semen, and Corydalis Tuber acted as potent inhibitors against hERG. These herbal medicines may cause cardiac arrhythmia through QT prolongation, so care should be taken when taking them.

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