|
1
|
Yang L, Xie G, Wang Y, Li J, Zheng B, Zhu J, Yuan X, Hong Q, Ma Z, Gao Y. Metabolic Behaviors of Aconitum Alkaloids in Different Concentrations of Aconiti Lateralis Radix Praeparata and Effects of Aconitine in Healthy Human and Long QT Syndrome Cardiomyocytes. Molecules 2022; 27:molecules27134055. [PMID: 35807297 PMCID: PMC9268243 DOI: 10.3390/molecules27134055] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/18/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Aconiti Lateralis Radix Praeparata (Fu Zi) is the processed lateral root of Aconitum carmichaelii Debx, which is widely used in emergency clinics. Poisoning incidents and adverse reactions occur with the improper intake of Fu Zi. Metabolic characteristics of aconitum alkaloids of Fu Zi may vary, and the effects of Fu Zi in healthy and Long QT syndrome (LQTS) patients is unknown. In this experiment, 24 Sprague Dawley rats were randomly divided into three groups: 2.0, 1.0, and 0.5 g/kg dose groups, and blood samples were collected after the oral administration of Fu Zi extract. We used an ultra-high performance liquid chromatography-tandem mass spectrometry system to detect the concentrations of six aconitum alkaloids. Cell toxicity, calcium imaging, and patch-clamp recordings of human induced pluripotent stem cells-cardiomyocytes (hiPSC-CMs) of aconitine in healthy and LQTS were observed. We found that the AUC(0–48h), Cmax, and t1/2 of the six compounds increased with the multiplicative dosages; those in the high group were significantly higher than those in the low group. Aconitine concentration-dependently decreased the amplitude, which has no significant effect on the cell index of normal hiPSC-CMs. Aconitine at 5.0 μM decreased the cell index between 5–30 min for LQTS hiPSC-CMs. Meanwhile, aconitine significantly increased the frequency of calcium transients in LQTS at 5 μM. Aconitine significantly shortened the action potential duration of human cardiomyocytes in both normal and LQTS groups. These results show metabolic behaviors of aconitum alkaloids in different concentrations of Fu Zi and effects of aconitine in healthy and LQTS patients.
Collapse
Affiliation(s)
- Liang Yang
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, China; (L.Y.); (B.Z.); (J.Z.); (X.Y.)
- Beijing Institution of Radiation Medicine, Beijing 100850, China; (G.X.); (Y.W.); (J.L.)
| | - Guanghui Xie
- Beijing Institution of Radiation Medicine, Beijing 100850, China; (G.X.); (Y.W.); (J.L.)
| | - Yuguang Wang
- Beijing Institution of Radiation Medicine, Beijing 100850, China; (G.X.); (Y.W.); (J.L.)
| | - Jian Li
- Beijing Institution of Radiation Medicine, Beijing 100850, China; (G.X.); (Y.W.); (J.L.)
| | - Bin Zheng
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, China; (L.Y.); (B.Z.); (J.Z.); (X.Y.)
| | - Jinmiao Zhu
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, China; (L.Y.); (B.Z.); (J.Z.); (X.Y.)
| | - Xinsong Yuan
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, China; (L.Y.); (B.Z.); (J.Z.); (X.Y.)
| | - Qian Hong
- Huaihai Hospital, Xuzhou Medical University/PLA 71st Group Military Hospital, Xuzhou 221004, China;
| | - Zengchun Ma
- Beijing Institution of Radiation Medicine, Beijing 100850, China; (G.X.); (Y.W.); (J.L.)
- Correspondence: (Z.M.); (Y.G.)
| | - Yue Gao
- Beijing Institution of Radiation Medicine, Beijing 100850, China; (G.X.); (Y.W.); (J.L.)
- Correspondence: (Z.M.); (Y.G.)
| |
Collapse
|
|
2
|
Lou J, Chen H, Huang S, Chen P, Yu Y, Chen F. Update on risk factors and biomarkers of sudden unexplained cardiac death. J Forensic Leg Med 2022; 87:102332. [DOI: 10.1016/j.jflm.2022.102332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/21/2022] [Accepted: 03/02/2022] [Indexed: 02/01/2023]
|