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Cao F, Wang T, Ding W, Li Z, Shi S, Wang X. Effects of diacetyl-liensinine on electrophysiology in rabbit ventricular myocytes. BMC Pharmacol Toxicol 2017; 18:33. [PMID: 28476169 PMCID: PMC5420095 DOI: 10.1186/s40360-017-0137-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/27/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Diacetyl-liensinine is a chemosynthetic derivative of liensinine, extracted from the seed embryo of Nelumbo nucifera Gaertn, in China. It has been found to have extensive anti- arrhythmic actions. The present study was designed to investigate the effects of diacetyl-liensinine on electro- physiology of myocytes. METHODS We exposed rabbit ventricular myocytes to diacetyl-liensinine using standard whole-cell patch-clamp technique and measured the action potential, L-type calcium current (I Ca-L), delayed rectifier potassium current (I K), transient outward potassium current (I to) and inward rectifier potassium current (I K1). RESULTS Our results showed that diacetyl-liensinine significantly prolonged action potential duration at 50 and 90% repolarization (APD50, APD90), at 10 and 30 μM, while shortened APD50 and APD90 at 100 μM. In addition, diacetyl-liensinine inhibited the ICa-L, IK, I to and IK1 in a concentration-dependent manner. CONCLUSIONS The results suggest that diacetyl-liensinine might be a potential anti-arrhythmic agent.
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Affiliation(s)
- Feng Cao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China.
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, People's Republic of China.
| | - Teng Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, People's Republic of China
| | - Wenmao Ding
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, People's Republic of China
| | - Zhe Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, People's Republic of China
| | - Shaobo Shi
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, People's Republic of China
| | - Xiaozhan Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
- Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Wuhan, 430060, People's Republic of China
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