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Salehi A, Ghanadian M, Zolfaghari B, Jassbi AR, Fattahian M, Reisi P, Csupor D, Khan IA, Ali Z. Neuropharmacological Potential of Diterpenoid Alkaloids. Pharmaceuticals (Basel) 2023; 16:ph16050747. [PMID: 37242531 DOI: 10.3390/ph16050747] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/28/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
This study provides a narrative review of diterpenoid alkaloids (DAs), a family of extremely important natural products found predominantly in some species of Aconitum and Delphinium (Ranunculaceae). DAs have long been a focus of research attention due to their numerous intricate structures and diverse biological activities, especially in the central nervous system (CNS). These alkaloids originate through the amination reaction of tetra or pentacyclic diterpenoids, which are classified into three categories and 46 types based on the number of carbon atoms in the backbone structure and structural differences. The main chemical characteristics of DAs are their heterocyclic systems containing β-aminoethanol, methylamine, or ethylamine functionality. Although the role of tertiary nitrogen in ring A and the polycyclic complex structure are of great importance in drug-receptor affinity, in silico studies have emphasized the role of certain sidechains in C13, C14, and C8. DAs showed antiepileptic effects in preclinical studies mostly through Na+ channels. Aconitine (1) and 3-acetyl aconitine (2) can desensitize Na+ channels after persistent activation. Lappaconitine (3), N-deacetyllapaconitine (4), 6-benzoylheteratisine (5), and 1-benzoylnapelline (6) deactivate these channels. Methyllycaconitine (16), mainly found in Delphinium species, possesses an extreme affinity for the binding sites of α7 nicotinic acetylcholine receptors (nAChR) and contributes to a wide range of neurologic functions and the release of neurotransmitters. Several DAs such as bulleyaconitine A (17), (3), and mesaconitine (8) from Aconitum species have a drastic analgesic effect. Among them, compound 17 has been used in China for decades. Their effect is explained by increasing the release of dynorphin A, activating the inhibitory noradrenergic neurons in the β-adrenergic system, and preventing the transmission of pain messages by inactivating the Na+ channels that have been stressed. Acetylcholinesterase inhibitory, neuroprotective, antidepressant, and anxiolytic activities are other CNS effects that have been investigated for certain DAs. However, despite various CNS effects, recent advances in developing new drugs from DAs were insignificant due to their neurotoxicity.
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Affiliation(s)
- Arash Salehi
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Mustafa Ghanadian
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
- Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Behzad Zolfaghari
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Amir Reza Jassbi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
| | - Maryam Fattahian
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Parham Reisi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan 81745-33871, Iran
| | - Dezső Csupor
- Institute of Clinical Pharmacy, Faculty of Pharmacy, University of Szeged, 6720 Szeged, Hungary
| | - Ikhlas A Khan
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
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Zhou J, Peng C, Li Q, Yan X, Yang L, Li M, Cao X, Xie X, Chen D, Rao C, Huang S, Peng F, Pan X. Dopamine Homeostasis Imbalance and Dopamine Receptors-Mediated AC/cAMP/PKA Pathway Activation are Involved in Aconitine-Induced Neurological Impairment in Zebrafish and SH-SY5Y Cells. Front Pharmacol 2022; 13:837810. [PMID: 35370746 PMCID: PMC8971779 DOI: 10.3389/fphar.2022.837810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/25/2022] [Indexed: 11/25/2022] Open
Abstract
Aconitine is one of the main bioactive and toxic ingredients of Aconitum species. Increasingly, aconitine has been reported to induce neurotoxicity. However, whether aconitine has effects on the dopaminergic nervous system remains unclear. In this study, zebrafish embryos at 6-days postfertilization were exposed to aconitine at doses of 0.5, 1, and 2 μM for 24 h, and SH-SY5Y cells were treated with 50, 100, and 200 μM of aconitine for 24 h. Results demonstrated that aconitine treatment induced deformities and enhanced the swimming behavior of zebrafish larvaes. Aconitine exposure suppressed cell proliferation and increased the number of reactive oxygen species and apoptosis in zebrafish larvaes and SH-SY5Y cells. Aconitine altered the levels of dopamine and its metabolites by regulating the expression of genes and proteins related to dopamine synthesis, storage, degradation, and reuptake in vivo and in vitro. Moreover, aconitine activated the AC/cAMP/PKA pathway by activating the dopamine D1 receptor (D1R) and inhibiting the dopamine D2 receptor (D2R) to disturb intracellular calcium homeostasis, eventually leading to the damage of nerve cells. Furthermore, the D1R antagonist SCH23390 and D2R agonist sumanirole pretreatment effectively attenuated the excitatory state of larvaes. Sumanirole and PKA antagonist H-89 pretreatment effectively decreased intracellular Ca2+ accumulation induced by aconitine in vivo. SCH23390 and sumanirole also reduced aconitine-induced cytotoxicity by inhibiting the AC/cAMP/PKA pathway in vitro. These results suggested that dopamine homeostasis imbalance and dopamine receptors (DRs)-mediated AC/cAMP/PKA pathway activation might be vital mechanisms underlying aconitine-induced neurological injury.
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Affiliation(s)
- Jie Zhou
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Cheng Peng
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiuju Li
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoyu Yan
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Liang Yang
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mengting Li
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoyu Cao
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofang Xie
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dayi Chen
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chaolong Rao
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sizhou Huang
- Development and Regeneration Key Laboratory of Sichuan Province, Department of Anatomy and Histology and Embryology, School of Basic Medicine, Chengdu Medical College, Chengdu, China
| | - Fu Peng
- West China School of Pharmacy, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaoqi Pan,
| | - Xiaoqi Pan
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaoqi Pan,
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Yang M, Ji X, Zuo Z. Relationships between the Toxicities of Radix Aconiti Lateralis Preparata (Fuzi) and the Toxicokinetics of Its Main Diester-Diterpenoid Alkaloids. Toxins (Basel) 2018; 10:toxins10100391. [PMID: 30261585 PMCID: PMC6215299 DOI: 10.3390/toxins10100391] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/05/2018] [Accepted: 09/14/2018] [Indexed: 12/16/2022] Open
Abstract
The processed lateral root of Aconitum carmichaelii Deb (Aconiti Radix lateralis praeparata or Fuzi) is a potent traditional herbal medicine extensively used in treatment of cardiovascular diseases, rheumatism arthritis, and bronchitis in many Asian countries. Although Fuzi has promising therapeutic effects, its toxicities are frequently observed. Three main C19-diester-diterpenoid alkaloids (DDAs) are believed to be the principal toxins of the herb. Although toxicokinetic profiles of the toxic DDAs have already been examined in several studies, they have seldom been correlated with the toxicities of Fuzi. The current article aimed to investigate the relationship between the up-to-date toxicokinetic data of the toxic DDAs and the existing evidence of the toxic effects of Fuzi. Relationships between the cardiac toxicity and the plasma and heart concentration of DDAs in mice and rats were established. Based on our findings, clinical monitoring of the plasma concentrations of DDAs of Fuzi is recommended to prevent potential cardiac toxicities. Additionally, caution with respect to potential hepatic and renal toxicity induced by Fuzi should be exercised. In addition, further analyses focusing on the preclinical tissue distribution profile of DDAs and on the long-term toxicokinetic-toxicity correlation of DDAs are warranted for a better understanding of the toxic mechanisms and safer use of Fuzi.
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Affiliation(s)
- Mengbi Yang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
| | - Xiaoyu Ji
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
| | - Zhong Zuo
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
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Gao X, Hu J, Zhang X, Zuo Y, Wang Y, Zhu S. Research progress of aconitine toxicity and forensic analysis of aconitine poisoning. Forensic Sci Res 2018; 5:25-31. [PMID: 32490307 PMCID: PMC7241456 DOI: 10.1080/20961790.2018.1452346] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 03/12/2018] [Indexed: 12/18/2022] Open
Abstract
Chinese herbal medicines have been extensively used in China and other countries for centuries. Aconitine, a diterpenoid alkaloid extracted from Aconitum plants, has anti-inflammatory and analgesic activities, but can also induce severe arrhythmia and neurotoxicity. Aconitine poisoning accidents caused by misuse, suicide, or homicide have been reported in recent years. In China, fatal aconitine poisoning can occasionally happen on account of accidental ingestion of some wild plants or consumption of herbal decoction made from the roots of Aconitum plants. However, it is rather difficult for forensic experts to find the specific results in present forensic autopsy of aconitine-induced death. To further clarify its potential risk following the widespread application of aconitine, toxicological characteristics and pharmacokinetics of aconitine are reviewed. Moreover, gastrointestinal, neurological, and cardiovascular symptoms were observed frequently in aconitine poisoning cases. In addition, the review also aims at providing some convincing evidences for forensic experts to identify unexplained death with postmortem examination.
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Affiliation(s)
- Xiangting Gao
- Department of Forensic Medicine, Soochow University, Suzhou, China
| | - Jun Hu
- Department of Forensic Medicine, Soochow University, Suzhou, China.,Laboratory of Biomedical Technology, Jiangsu Vocational College of Medicine, Yancheng, China
| | - Xincai Zhang
- Department of Forensic Medicine, Soochow University, Suzhou, China
| | - Yuanyi Zuo
- Department of Forensic Medicine, Soochow University, Suzhou, China.,Department of Forensic Sciences, Binhai People's Hospital, Yancheng, China
| | - Yun Wang
- Department of Forensic Medicine, Soochow University, Suzhou, China
| | - Shaohua Zhu
- Department of Forensic Medicine, Soochow University, Suzhou, China
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Sui Z, Li Q, Zhu L, Wang Z, Lv C, Liu R, Xu H, He B, Li Z, Bi K. An integrative investigation of the toxicity of Aconiti kusnezoffii radix and the attenuation effect of its processed drug using a UHPLC-Q-TOF based rat serum and urine metabolomics strategy. J Pharm Biomed Anal 2017; 145:240-247. [PMID: 28668652 DOI: 10.1016/j.jpba.2017.06.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 06/15/2017] [Accepted: 06/20/2017] [Indexed: 01/01/2023]
Abstract
Aconiti kusnezoffii radix (AKR), the root of Aconitum kusnezoffii Reichb., is commonly used in the treatment of the rheumatoid arthritis. However, the clinical application is limited due to its potential toxicity. Therefore, to investigate the mechanism of its potential neurotoxicity and nephrotoxicity, a comprehensive metabolomics study combined with serum biochemistry and histopathology measurements was carried out. A UHPLC-Q-TOF mass spectrometry based metabolomics approach was applied to characterize the AKR toxicity, while the toxicity attenuation effects of Aconiti kusnezoffii radix cocta (AKRC) on Wistar rats were also investigated. Two chromatographic techniques involving reversed-phase chromatography and hydrophilic interaction chromatography were combined for the serum and urine detection, which balanced the integrity and selectivity of the two matrices. Principal component analysis was used to determine the groups, and principal component analysis discriminant analysis was carried out to confirm the important variables. Then, the developed integrative toxicity evaluation method was applied to assess the toxicity of AKR and the attenuation effect of AKRC. The highly sensitive and specific toxic biomarkers, which can provide practical bases were identified for the diagnosis of the neurotoxicity and nephrotoxicity induced by AKR. In all, a total of 19 putative biomarkers were characterized, and related metabolic pathways were identified. The study demonstrated that the established metabolomics strategy is a powerful approach for investigating the mechanisms of herbal toxicity and the attenuation effect of a processing method and would provide medical solutions for other toxic herbal medications and further clinical evidence on how AKR improves symptoms of rheumatoid arthritis patients.
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Affiliation(s)
- Zhenyu Sui
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qing Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lin Zhu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhenru Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chunxiao Lv
- The Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300150, China
| | - Ran Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Huarong Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bosai He
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zuojing Li
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Kaishun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Bioactive heterocyclic alkaloids with diterpene structure isolated from traditional Chinese medicines. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1026:56-66. [DOI: 10.1016/j.jchromb.2015.09.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 08/21/2015] [Accepted: 09/17/2015] [Indexed: 12/23/2022]
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Yu B, Cao Y, Xiong YK. Pharmacokinetics of aconitine-type alkaloids after oral administration of Fuzi (Aconiti Lateralis Radix Praeparata) in rats with chronic heart failure by microdialysis and ultra-high performance liquid chromatography-tandem mass spectrometry. JOURNAL OF ETHNOPHARMACOLOGY 2015; 165:173-179. [PMID: 25708163 DOI: 10.1016/j.jep.2015.01.057] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 12/03/2014] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Fuzi [the lateral root of Aconitum carmichaeli Debx (Ranunculaceae)] is a well-known traditional medicinal herb used to treat chronic heart failure (CHF). Aconitine-type alkaloids are major alkaloids that are responsible for the pharmacological activity and toxicity of this herb.To investigate therapeutic effects and pharmacokinetic profiles of aconitine-type alkaloids in CHF rats. MATERIALS AND METHODS The plasma pharmacokinetic profiles of aconitine, mesaconitine, and hypaconitine were investigated after once treatment of Fuzi extract (containing aconitine 0.086 mg/g, mesaconitine 0.84 mg/g, and hypaconitine 1.97 mg/g) using a rapid and sensitive combinative method of ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and microdialysis (MD). The cardiac function and antioxidant enzyme activities were also evaluated. RESULTS Recoveries of MD sampling ranged from 35.06% to 45.74% with RSD below 6.05%. Fuzi extract improved the myocardial function and antioxidant enzymatic activities of rats with CHF. Aconitine, mesaconitine, and hypaconitine exhibited slower absorption into the bloodstream, and yielded 11-fold less values of area under concentration-time curve (AUC) in the CHF rats than those in normal rats. The plasma AUC showed that the maximum blood concentration (Cmax) was 5.561 ng/mL for aconitine, 17.30 ng/mL for mesaconitine, and 17.78 ng/mL for hypaconitine in normal rats, while these were 0.6059 ng/mL, 2.430, and 0.7461 ng/mL in CHF rats, respectively. CONCLUSION Aconitine-type alkaloids associated with Fuzi׳s efficacy have lower intake and slower elimination in the CHF rats, indicating a non-interdependent relationship between its efficacy and toxicity. It may contribute to the depth understanding of the toxicological and pharmacological profiles of Fuzi and further benefit the herbal drug development with safety and efficacy for CHF treatment.
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Affiliation(s)
- Bing Yu
- Zhejiang Chinese Medical University, Binjiang 310053, China
| | - Yi Cao
- Zhejiang Provincial Hospital of TCM, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - Yao-Kang Xiong
- Zhejiang Chinese Medical University, Binjiang 310053, China.
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Enrichment and purification of six Aconitum alkaloids from Aconiti kusnezoffii radix by macroporous resins and quantification by HPLC–MS. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 960:174-81. [DOI: 10.1016/j.jchromb.2014.04.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/18/2014] [Accepted: 04/22/2014] [Indexed: 11/24/2022]
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Toxicity of Five Herbs in Aconitum L. on Tetrahymena thermophila Based on Spectrum-effect Relationship. CHINESE HERBAL MEDICINES 2014. [DOI: 10.1016/s1674-6384(14)60003-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Liu J, Li Q, Yin Y, Liu R, Xu H, Bi K. Ultra-fast LC-ESI-MS/MS method for the simultaneous determination of six highly toxic Aconitum
alkaloids from Aconiti kusnezoffii radix in rat plasma and its application to a pharmacokinetic study. J Sep Sci 2014; 37:171-8. [DOI: 10.1002/jssc.201300775] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 10/22/2013] [Accepted: 10/23/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Jingjing Liu
- School of Chinese Material Medica; Shenyang Pharmaceutical University; Shenyang China
- National and Local United Engineering Laboratory for Key Technology of Chinese Material Medica Quality Control; Shenyang Pharmaceutical University; Shenyang China
| | - Qing Li
- Schools of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
- National and Local United Engineering Laboratory for Key Technology of Chinese Material Medica Quality Control; Shenyang Pharmaceutical University; Shenyang China
| | - Yidi Yin
- School of Chinese Material Medica; Shenyang Pharmaceutical University; Shenyang China
- National and Local United Engineering Laboratory for Key Technology of Chinese Material Medica Quality Control; Shenyang Pharmaceutical University; Shenyang China
| | - Ran Liu
- Schools of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
- National and Local United Engineering Laboratory for Key Technology of Chinese Material Medica Quality Control; Shenyang Pharmaceutical University; Shenyang China
| | - Huarong Xu
- Schools of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
- National and Local United Engineering Laboratory for Key Technology of Chinese Material Medica Quality Control; Shenyang Pharmaceutical University; Shenyang China
| | - Kaishun Bi
- Schools of Pharmacy; Shenyang Pharmaceutical University; Shenyang China
- National and Local United Engineering Laboratory for Key Technology of Chinese Material Medica Quality Control; Shenyang Pharmaceutical University; Shenyang China
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Zhu HL, Wan JB, Wang YT, Li BC, Xiang C, He J, Li P. Medicinal compounds with antiepileptic/anticonvulsant activities. Epilepsia 2013; 55:3-16. [DOI: 10.1111/epi.12463] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2013] [Indexed: 01/21/2023]
Affiliation(s)
- Hui-Ling Zhu
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Yi-Tao Wang
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Bao-Cai Li
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming China
| | - Cheng Xiang
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming China
| | - Jing He
- Faculty of Life Science and Technology; Kunming University of Science and Technology; Kunming China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
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Kiss T, Orvos P, Bánsághi S, Forgo P, Jedlinszki N, Tálosi L, Hohmann J, Csupor D. Identification of diterpene alkaloids from Aconitum napellus subsp. firmum and GIRK channel activities of some Aconitum alkaloids. Fitoterapia 2013; 90:85-93. [PMID: 23876370 DOI: 10.1016/j.fitote.2013.07.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/09/2013] [Accepted: 07/13/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Tivadar Kiss
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
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Connexin36 gap junction blockade is ineffective at reducing seizure-like event activity in neocortical mouse slices. EPILEPSY RESEARCH AND TREATMENT 2011; 2010:310753. [PMID: 22937225 PMCID: PMC3428610 DOI: 10.1155/2010/310753] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 12/14/2010] [Indexed: 11/24/2022]
Abstract
Despite much research, there remains controversy over the role of gap junctions in seizure processes. Many studies report anticonvulsant effects of gap junction blockade, but contradictory results have also been reported. The aim of this study was to clarify the role of connexin36 (Cx36) gap junctions in neocortical seizures. We used the mouse neocortical slice preparation to investigate the effect of pharmacological (mefloquine) and genetic (Cx36 knockout mice (Cx36KO)) manipulation of Cx36 gap junctions on two seizure models: low-magnesium artificial cerebrospinal fluid (ACSF) and aconitine perfusion in low-magnesium ACSF. Low-magnesium- (nominally zero) and aconitine- (230 nM) induced seizure-like event (SLE) population activity was recorded extracellularly. The results were consistent in showing that neither mefloquine (25 μM) nor genetic knockdown of Cx36 expression had anticonvulsant effects on SLE activity generated by either method. These findings call into question the widely held idea that open Cx36 gap junctions promote seizure activity.
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Study of neurotoxic effects and underlying mechanisms of aconitine on cerebral cortex neuron cells. Arch Pharm Res 2009; 32:1533-43. [DOI: 10.1007/s12272-009-2105-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2009] [Revised: 08/24/2009] [Accepted: 09/01/2009] [Indexed: 10/20/2022]
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