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Zhao P, Lou LL, Xin BS, Li ZY, Guo R, Zhou WY, Lv TM, Huang XX, Song SJ. Rapid determination of the relative configuration of diverse 8,4'-oxyneolignans by NMR analysis: Retrospective studies, improvement and structural revision. PHYTOCHEMISTRY 2023; 214:113801. [PMID: 37499851 DOI: 10.1016/j.phytochem.2023.113801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/29/2023] [Accepted: 07/25/2023] [Indexed: 07/29/2023]
Abstract
The characteristic 1H NMR signals (H-7 and H2-9) are significant parameters that have been widely used to assess the relative configuration of H-7 and H-8 of 8,4'-oxyneolignans. However, many usual 8,4'-oxyneolignans cannot be accurately determined by existing NMR methods and no research considering their limitations was performed until now. In this study, the application scope of NMR methods was comprehensively studied and the ΔδH9a-H9b methods have been extended to solve the majority of configuration determination difficulties. The accuracy of extended NMR methods was verified by anisotropic NMR (RCSA measurements), NMR calculation and diverse statistical analysis (MAEΔΔδ, CP3 and DP4+). Furthermore, the theoretical conformational analysis was performed to investigate the inherent limitations of existing NMR methods. This study could provide a valuable reference for determining the relative configuration of H-7 and H-8 in 8,4'-oxyneolignans and the relative configuration of 23 recently reported 8,4'-oxyneolignan derivatives should be reassigned as well.
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Affiliation(s)
- Peng Zhao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Li-Li Lou
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Ben-Song Xin
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Zhi-Yuan Li
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Rui Guo
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Wei-Yu Zhou
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Tian-Ming Lv
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China.
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China.
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Li M, Cao X, Yan H, Wang M, Tashibolati A, Maiwulanjiang M. Integrating Zebrafish Model to Screen Active Ingredients and Network Pharmacology Methods to Explore the Mechanism of Lavandula angustifolia Therapy for Alzheimer's Disease. ChemistrySelect 2022. [DOI: 10.1002/slct.202201364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Muchun Li
- State Key Laboratory Basis of Xinjiang indigenous medicinal plants resource utilization Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing South Road 40–1 Urumqi 830011 Xinjiang China
- University of Chinese Academy of Sciences Beijing 100049 China
- Xinjiang Academic Institute of Analysis and Testing Plant Resources Green Processing Engineering Technology Research Center of Xinjiang North Science Road 374 Urumqi 830011 Xinjiang China
| | - Xueqin Cao
- State Key Laboratory Basis of Xinjiang indigenous medicinal plants resource utilization Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing South Road 40–1 Urumqi 830011 Xinjiang China
- University of Chinese Academy of Sciences Beijing 100049 China
- Xinjiang Academic Institute of Analysis and Testing Plant Resources Green Processing Engineering Technology Research Center of Xinjiang North Science Road 374 Urumqi 830011 Xinjiang China
| | - Huan Yan
- Xinjiang Academic Institute of Analysis and Testing Plant Resources Green Processing Engineering Technology Research Center of Xinjiang North Science Road 374 Urumqi 830011 Xinjiang China
- College of Public Health Xinjiang Medical University Urumqi 830011 Xinjiang China
| | - Miaomiao Wang
- State Key Laboratory Basis of Xinjiang indigenous medicinal plants resource utilization Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing South Road 40–1 Urumqi 830011 Xinjiang China
- University of Chinese Academy of Sciences Beijing 100049 China
- Xinjiang Academic Institute of Analysis and Testing Plant Resources Green Processing Engineering Technology Research Center of Xinjiang North Science Road 374 Urumqi 830011 Xinjiang China
| | - Ayiguli Tashibolati
- Xinjiang Academic Institute of Analysis and Testing Plant Resources Green Processing Engineering Technology Research Center of Xinjiang North Science Road 374 Urumqi 830011 Xinjiang China
| | - Maitinuer Maiwulanjiang
- State Key Laboratory Basis of Xinjiang indigenous medicinal plants resource utilization Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing South Road 40–1 Urumqi 830011 Xinjiang China
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Wang XZ, Song XJ, Liu C, Xing C, Wu T, Zhang Y, Su J, Hao JY, Chen XY, Zhang ZY, Li YH, Liu YY. Active components and molecular mechanism of Syringa oblata Lindl. in the treatment of endometritis based on pharmacology network prediction. Front Vet Sci 2022; 9:885952. [PMID: 35937303 PMCID: PMC9355479 DOI: 10.3389/fvets.2022.885952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/27/2022] [Indexed: 11/23/2022] Open
Abstract
Antibiotic treatment of endometritis was limited by the inevitable antibiotic residues and risk of bacterial resistance. Therefore, the development of safe and effective strategies for endometritis treatment is urgently needed. Syringa oblata Lindl. (SOL) showed great pharmacological potential against endometritis. However, the active components and underlying mechanism of SOL for endometritis treatment remain indeterminate. In our study, the active components and possible molecular mechanism of SOL against endometritis were predicted through computer data mining and biological networks construction. It was predicted that the main active components of SOL were luteolin, kaempferol, oleanolic acid, and rutin, and their anti-endometritis effect was mainly attributed to the TLRs/NF-κB signaling pathway. Furthermore, a green and efficient deep eutectic solvent combined with ultrasound-assisted extraction (DES-UAE) was performed and optimized to obtain high contents of total flavonoid, rutin, and luteolin. The four predicted active components in the SOL extracts were qualitatively and quantitatively analyzed by LC/MS and HPLC. Finally, the pharmacological effects of SOL and active components have been verified by Staphylococcus aureus-endometritis models in mice. H&E staining and bacterial load in uterus tissues assays initially validated the pharmacodynamic effects of SOL, and quantitative real-time PCR (RT-qPCR) and ELISA results confirmed that SOL and four active components could ameliorate the uterus injury caused by Staphylococcus aureus, the mechanism of action is related to the TLRs/NF-κB signaling pathway.
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Affiliation(s)
- Xiao-Zhen Wang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xue-Jiao Song
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Chang Liu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Chen Xing
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Tong Wu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yue Zhang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jing Su
- Heilongjiang Animal Disease Prevention and Control Center, Harbin, China
| | - Jing-You Hao
- Harbin Lvda Sheng Animal Medicine Manufacture Co., Ltd., Harbin, China
| | - Xue-Ying Chen
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Zhi-Yun Zhang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yan-Hua Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- *Correspondence: Yan-Yan Liu
| | - Yan-Yan Liu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Yan-Hua Li
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Zhu W, Wang Z, Sun Y, Yang B, Wang Q, Kuang H. Traditional uses, phytochemistry and pharmacology of genus Syringa: A comprehensive review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 266:113465. [PMID: 33049343 DOI: 10.1016/j.jep.2020.113465] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Genus Syringa, which belongs to Oleaceae family, contains 21 accepted species mainly distributed in Southeast Europe, Japan, China, Himalayas, etc. The various parts of Syringa species have been used as traditional Chinese herbal medicines for treatment of cough, myocardial ischemia, acute icteric hepatitis, diarrhea, conjunctivitis, bronchitis and other ailments. AIM OF THE STUDY A more comprehensive and in-depth review about the phytochemistry, pharmacology, traditional medicinal uses and clinical applications as well as toxicology of Syringa have summarized and hope to provide a relatively novel angle for further clinical applicantion on genus. MATERIALS AND METHODS The literatures about Syringa were collected via a series of scientific search engines including Web of Science, PubMed, Elsevier, Google Scholar, SciFinder and CNKI. RESULTS The phytochemical studies revealed that about 302 compounds include phenylpropanoids, iridoids, phenylethanols, flavonoids, triterpenes and other minor compounds have been isolated and identified from Syringa species. Phenylpropanoids and iridoids are the main constituents among these compounds and may be responsible for the activities directly or indirectly. As traditional medicine, Syringa applied to treat cough, diarrhea, acute icteric hepatitis, vomit, abdominal pain, bronchitis and other ailments. Most of traditional uses are related the biological activities and confirmed by modern studies. Pharmacological researches in vitro and in vivo revealed that the extracts and pure compounds possessed significantly hepatoprotective, anti-inflammatory, antimicrobial, antioxidant, antitumor, antiviral, cardioprotective, immunomodulatory and other activities. CONCLUSIONS The phytochemistry, pharmacology, traditional uses and clinical applications described in this article demonstrated that Syringa species possessed a huge number of activities and these findings will promote the further action mechanisms studies. However, fewer preclinical and clinical studies are focued on the pharmacokinetics of crudes extracts and conpounds from Syringa. The explored of new agents with Syringa species as ingredients may be limited. It points to the further in-depth investigations on pharmacokinetics as well as toxicological are essential in future for assessment the effectiveness and safety of drug.
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Affiliation(s)
- Wenbo Zhu
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040, China
| | - Zhibin Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040, China
| | - Yanping Sun
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040, China
| | - Bingyou Yang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040, China
| | - Qiuhong Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040, China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 232 Outer Ring Road, University Town, Guangzhou, 510006, China
| | - Haixue Kuang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040, China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 232 Outer Ring Road, University Town, Guangzhou, 510006, China.
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Teponno RB, Kusari S, Spiteller M. Recent advances in research on lignans and neolignans. Nat Prod Rep 2017; 33:1044-92. [PMID: 27157413 DOI: 10.1039/c6np00021e] [Citation(s) in RCA: 281] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Covering: 2009 to 2015Lignans and neolignans are a large group of natural products derived from the oxidative coupling of two C6-C3 units. Owing to their biological activities ranging from antioxidant, antitumor, anti-inflammatory to antiviral properties, they have been used for a long time both in ethnic as well as in conventional medicine. This review describes 564 of the latest examples of naturally occurring lignans and neolignans, and their glycosides in some cases, which have been isolated between 2009 and 2015. It comprises the data reported in more than 200 peer-reviewed articles and covers their source, isolation, structure elucidation and bioactivities (where available), and highlights the biosynthesis and total synthesis of some important ones.
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Affiliation(s)
- Rémy Bertrand Teponno
- Institute of Environmental Research (INFU), Department of Chemistry and Chemical Biology, Chair of Environmental Chemistry and Analytical Chemistry, TU Dortmund, Otto-Hahn-Str. 6, 44221 Dortmund, Germany. and Department of Chemistry, Faculty of Science, University of Dschang, P. O. Box 67, Dschang, Cameroon
| | - Souvik Kusari
- Institute of Environmental Research (INFU), Department of Chemistry and Chemical Biology, Chair of Environmental Chemistry and Analytical Chemistry, TU Dortmund, Otto-Hahn-Str. 6, 44221 Dortmund, Germany.
| | - Michael Spiteller
- Institute of Environmental Research (INFU), Department of Chemistry and Chemical Biology, Chair of Environmental Chemistry and Analytical Chemistry, TU Dortmund, Otto-Hahn-Str. 6, 44221 Dortmund, Germany.
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Sun J, Xun H, Yu J, Tang F, Yue YD, Guo XF. Chemical Constituents and Antibacterial Properties of Indocalamus latifolius McClure Leaves, the Packaging Material for "Zongzi". Molecules 2015; 20:15686-700. [PMID: 26343625 PMCID: PMC6331938 DOI: 10.3390/molecules200915686] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 08/20/2015] [Accepted: 08/24/2015] [Indexed: 12/20/2022] Open
Abstract
The glutinous rice dumpling named "Zongzi" in Chinese is a type of traditional food that is popular in East Asian countries. "Zongzi" is made of glutinous rice and wrapped in the leaves of Indocalamus latifolius McClure as the packaging material. Four new compounds, latifoliusine A (2), (7S,8R) syringylglycerol-8-O-4'-sinapyl ether 4-O-β-d-glucopyranoside (7), (7S,8S) syringylglycerol-8-O-4'-sinapyl ether 7-O-β-d-glucopyranoside (8), and (7R,8S) syringylglycerol-8-O-4'-sinapyl ether 7-O-β-d-glucopyranoside (10), along with six known compounds (1, 3-6 and 9) were isolated from I. latifolius McClure leaves. The structures and relative configurations of the compounds were determined by detailed spectroscopic analysis, high-resolution electrospray ionization mass spectroscopy (HRESIMS), heteronuclear single quantum correlation (HSQC), heteronuclear multiple bond correlation (HMBC), nuclear overhauser enhancement (NOE) and circular dichroism (CD). All of the isolated compounds were screened for their antibacterial activities in vitro. The results indicated that apigenin 6-C-α-l-arabinopyranosyl-8-C-β-d-glucopyranoside (5) and apigenin 7-O,8-C-di-glucopyranoside (6) have antibacterial activities against four bacterial strains (Staphylococcus aureus, Bacillus thuringiensis, Escherichia coli and Pseudomonas solanacearum).
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Affiliation(s)
- Jia Sun
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
| | - Hang Xun
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
| | - Jin Yu
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
| | - Feng Tang
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
| | - Yong-De Yue
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
| | - Xue-Feng Guo
- State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
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Su G, Cao Y, Li C, Yu X, Gao X, Tu P, Chai X. Phytochemical and pharmacological progress on the genus Syringa. Chem Cent J 2015; 9:2. [PMID: 25642281 PMCID: PMC4312558 DOI: 10.1186/s13065-015-0079-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 01/07/2015] [Indexed: 11/20/2022] Open
Abstract
Genus Syringa, belonging to the Oleaceae family, consists of more than 40 plant species worldwide, of which 22 species, including 18 endemic species, are found in China. Most Syringa plants are used in making ornaments and traditional medicines, whereas some are employed for construction or economic use. Previous studies have shown that extracts of Syringa plants mainly contain iridoids, lignans, and phenylethanoids that have antitumor, antihypertensive, anti-oxidant, and anti-inflammatory activities. This study reviews phytochemical and pharmacological progress on Syringa in the recent 20 years and discusses the future research prospects to provide a reference in further promotion and application of the genus. Phytochemical and pharmacological progress on the genus Syringa ![]()
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Affiliation(s)
- Guozhu Su
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China ; School of Chinese Materia Medica, Beijing University of Chinese Medicine, 6 Wangjing Southern Middle Ring Road, Chaoyang District Beijing, 100102 P. R. China
| | - Yuan Cao
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China ; School of Chinese Materia Medica, Beijing University of Chinese Medicine, 6 Wangjing Southern Middle Ring Road, Chaoyang District Beijing, 100102 P. R. China
| | - Chun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China
| | - Xuelong Yu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China ; School of Chinese Materia Medica, Beijing University of Chinese Medicine, 6 Wangjing Southern Middle Ring Road, Chaoyang District Beijing, 100102 P. R. China
| | - Xiaoli Gao
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China
| | - Xingyun Chai
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 North 3rd Ring Road, Chaoyang District Beijing, 100029 P. R. China
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