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Yu J, Xie J, Sun M, Xiong S, Xu C, Zhang Z, Li M, Li C, Lin L. Plant-Derived Caffeic Acid and Its Derivatives: An Overview of Their NMR Data and Biosynthetic Pathways. Molecules 2024; 29:1625. [PMID: 38611904 PMCID: PMC11013677 DOI: 10.3390/molecules29071625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
In recent years, caffeic acid and its derivatives have received increasing attention due to their obvious physiological activities and wide distribution in nature. In this paper, to clarify the status of research on plant-derived caffeic acid and its derivatives, nuclear magnetic resonance spectroscopy data and possible biosynthetic pathways of these compounds were collected from scientific databases (SciFinder, PubMed and China Knowledge). According to different types of substituents, 17 caffeic acid and its derivatives can be divided into the following classes: caffeoyl ester derivatives, caffeyltartaric acid, caffeic acid amide derivatives, caffeoyl shikimic acid, caffeoyl quinic acid, caffeoyl danshens and caffeoyl glycoside. Generalization of their 13C-NMR and 1H-NMR data revealed that acylation with caffeic acid to form esters involves acylation shifts, which increase the chemical shift values of the corresponding carbons and decrease the chemical shift values of the corresponding carbons of caffeoyl. Once the hydroxyl group is ester, the hydrogen signal connected to the same carbon shifts to the low field (1.1~1.6). The biosynthetic pathways were summarized, and it was found that caffeic acid and its derivatives are first synthesized in plants through the shikimic acid pathway, in which phenylalanine is deaminated to cinnamic acid and then transformed into caffeic acid and its derivatives. The purpose of this review is to provide a reference for further research on the rapid structural identification and biofabrication of caffeic acid and its derivatives.
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Affiliation(s)
- Jiahui Yu
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Jingchen Xie
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Miao Sun
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Suhui Xiong
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Chunfang Xu
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Zhimin Zhang
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Minjie Li
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Chun Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China;
| | - Limei Lin
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
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Alcázar Magaña A, Vaswani A, Brown KS, Jiang Y, Alam MN, Caruso M, Lak P, Cheong P, Gray NE, Quinn JF, Soumyanath A, Stevens JF, Maier CS. Integrating High-Resolution Mass Spectral Data, Bioassays and Computational Models to Annotate Bioactives in Botanical Extracts: Case Study Analysis of C. asiatica Extract Associates Dicaffeoylquinic Acids with Protection against Amyloid-β Toxicity. Molecules 2024; 29:838. [PMID: 38398590 PMCID: PMC10892090 DOI: 10.3390/molecules29040838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Rapid screening of botanical extracts for the discovery of bioactive natural products was performed using a fractionation approach in conjunction with flow-injection high-resolution mass spectrometry for obtaining chemical fingerprints of each fraction, enabling the correlation of the relative abundance of molecular features (representing individual phytochemicals) with the read-outs of bioassays. We applied this strategy for discovering and identifying constituents of Centella asiatica (C. asiatica) that protect against Aβ cytotoxicity in vitro. C. asiatica has been associated with improving mental health and cognitive function, with potential use in Alzheimer's disease. Human neuroblastoma MC65 cells were exposed to subfractions of an aqueous extract of C. asiatica to evaluate the protective benefit derived from these subfractions against amyloid β-cytotoxicity. The % viability score of the cells exposed to each subfraction was used in conjunction with the intensity of the molecular features in two computational models, namely Elastic Net and selectivity ratio, to determine the relationship of the peak intensity of molecular features with % viability. Finally, the correlation of mass spectral features with MC65 protection and their abundance in different sub-fractions were visualized using GNPS molecular networking. Both computational methods unequivocally identified dicaffeoylquinic acids as providing strong protection against Aβ-toxicity in MC65 cells, in agreement with the protective effects observed for these compounds in previous preclinical model studies.
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Affiliation(s)
- Armando Alcázar Magaña
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; (A.A.M.); (A.V.); (M.N.A.); (P.L.); (P.C.)
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR 97239, USA; (N.E.G.); (A.S.); (J.F.S.)
- Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Ashish Vaswani
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; (A.A.M.); (A.V.); (M.N.A.); (P.L.); (P.C.)
| | - Kevin S. Brown
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, USA;
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, 116 Johnson Hall, 105 SW 26th Street, Corvallis, OR 97331, USA
| | - Yuan Jiang
- Department of Statistics, Oregon State University, Corvallis, OR 97331, USA;
| | - Md Nure Alam
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; (A.A.M.); (A.V.); (M.N.A.); (P.L.); (P.C.)
| | - Maya Caruso
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA; (M.C.); (J.F.Q.)
| | - Parnian Lak
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; (A.A.M.); (A.V.); (M.N.A.); (P.L.); (P.C.)
| | - Paul Cheong
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; (A.A.M.); (A.V.); (M.N.A.); (P.L.); (P.C.)
| | - Nora E. Gray
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR 97239, USA; (N.E.G.); (A.S.); (J.F.S.)
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA; (M.C.); (J.F.Q.)
| | - Joseph F. Quinn
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA; (M.C.); (J.F.Q.)
- Parkinson’s Disease Research Education and Clinical Care Center, Veterans’ Administration Portland Health Care System, Portland, OR 97239, USA
| | - Amala Soumyanath
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR 97239, USA; (N.E.G.); (A.S.); (J.F.S.)
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA; (M.C.); (J.F.Q.)
| | - Jan F. Stevens
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR 97239, USA; (N.E.G.); (A.S.); (J.F.S.)
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, USA;
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Claudia S. Maier
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; (A.A.M.); (A.V.); (M.N.A.); (P.L.); (P.C.)
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR 97239, USA; (N.E.G.); (A.S.); (J.F.S.)
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
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Aljabri M, Alharbi K, Alonazi M. In vitro and in silico analysis of Solanum torvum fruit and methyl caffeate interaction with cholinesterases. Saudi J Biol Sci 2023; 30:103815. [PMID: 37811479 PMCID: PMC10558794 DOI: 10.1016/j.sjbs.2023.103815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 08/26/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023] Open
Abstract
Oxidative stress along with dysfunction in cholinergic neurotransmission primarily underlies cognitive impairment. A significant approach to mitigate cognitive dysfunction involves the inhibition of cholinesterases, namely acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). Exploring the potential antioxidant and anticholinesterase effects of edible plants holds promise for their utilization as botanicals to enhance cognition. Solanum torvum fruit with vast biological properties are used as food. In the present study, butanolic extract of S. torvum fruits (BESTF) was prepared. Additionally, the study investigated into the properties of methyl caffeate (MC), a compound present in S. torvum, obtained in its pure form. In vitro antioxidant and anticholinesterases activity of BESTF and MC were determined. BESTF and MC showed potent antioxidant property. BESTF and MC dose-dependently inhibited AChE (IC50 values: 166.6 µg/ml and 680.6 µM, respectively) and BChE (IC50 values: 161.55 µg/ml and 413 µM, respectively). BESTF and MC inhibited AChE and BChE in competitive mode. Active site gorge of AChE/BChE was occupied by MC which formed interaction with amino acids present in catalytic site and PAS in in silico. Further, molecular dynamics simulations followed by free energy calculation, principal component analysis and dynamic cross-correlation matrix provided the compelling evidence that that MC maintained stable interactions during MD simulation with AChE and BChE. Collectively, the results from the present study underlines the cognitive-enhancing effect of BESTF and MC.
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Affiliation(s)
- Maha Aljabri
- Department of Biology, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Khadiga Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Mona Alonazi
- Biochemistry Department, College of Science, King Saud University, Riyadh 11495, Saudi Arabia
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Jin X, Liu S, Chen S, Wang L, Cui Y, He J, Fang S, Li J, Chang Y. A systematic review on botany, ethnopharmacology, quality control, phytochemistry, pharmacology and toxicity of Arctium lappa L. fruit. JOURNAL OF ETHNOPHARMACOLOGY 2023; 308:116223. [PMID: 36781057 DOI: 10.1016/j.jep.2023.116223] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/19/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Arctium lappa L., is a biennial plant that grows around the Eurasia. Many parts of Arctium lappa L. (roots, leaves and fruits, etc.) are medically used in different countries. Arctium lappa L. fruit, also called Arctii Fructus, is traditionally applied to dispel wind-heat, ventilate lung to promote eruption, remove toxicity substance and relieve sore throat. THE AIM OF THE REVIEW The review aims to integrate the botany, ethnopharmacology, quality control, phytochemistry, pharmacology, derivatives and toxicity information of Arctii Fructus, so as to facilitate future research and explore the potential of Arctii Fructus as an agent for treating diseases. MATERIALS AND METHODS Related knowledge about Arctii Fructus were acquired from Science Direct, GeenMedical, PubMed, China National Knowledge Infrastructure (CNKI), Web of Science, Pharmacopoeia of the People's Republic of China, Doctoral and Master's thesis, ancient books, etc. RESULTS: Arctii Fructus as an herb used for medicine and food was pervasively distributed and applicated around the world. It was traditionally used to treat anemopyretic cold, dyspnea and cough, sore throat, etc. To date, more than 200 compounds have been isolated and identified from Arctii Fructus. It contained lignans, phenolic acids and fatty acids, terpenoids, volatile oils and others. Lignans, especially arctigenin and arctiin, had the extensive pharmacological effects such as anti-cancer, antiviral, anti-inflammatory activities. The ester derivatives of arctigenin had the anti-cancer, anti-Alzheimer's disease and immunity enhancing effects. Although Arctii Fructus extract had no toxicity, arctigenin was toxic at a certain dose. The alleviating effects of Arctii Fructus on chronic inflammation and ageing have been demonstrated by clinical studies. CONCLUSION Arctii Fructus is regarded as a worthy herb with many chemical components and various pharmacological effects. Several traditional applications have been supported by modern pharmacological research. However, their action mechanisms need to be further studied. Although many chemical components were isolated from Arctii Fructus, the current research mainly focused on lignans, especially arctiin and arctigenin. Therefore, it is very important to deeply clarify the pharmacological activities and action mechanism of the compounds and make full medicinal use of the resources of Arctii Fructus.
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Affiliation(s)
- Xingyue Jin
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Suyi Liu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shujing Chen
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Lirong Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Yan Cui
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Jun He
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shiming Fang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Jin Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
| | - Yanxu Chang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China.
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Yosri N, Alsharif SM, Xiao J, Musharraf SG, Zhao C, Saeed A, Gao R, Said NS, Di Minno A, Daglia M, Guo Z, Khalifa SAM, El-Seedi HR. Arctium lappa (Burdock): Insights from ethnopharmacology potential, chemical constituents, clinical studies, pharmacological utility and nanomedicine. Biomed Pharmacother 2023; 158:114104. [PMID: 36516694 DOI: 10.1016/j.biopha.2022.114104] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/27/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
Arctium lappa L. is a medicinal edible homologous plant, commonly known as burdock or bardana, which belongs to the Asteraceae family. It is widely distributed throughout Northern Asia, Europe, and North America and has been utilized for hundreds of years. The roots, fruits, seeds, and leaves of A. lappa have been extensively used in traditional Chinese Medicine (TCM). A. lappa has attracted a great deal of attention due to its possession of highly recognized bioactive metabolites with significant therapeutic potential. Numerous pharmacological effects have been demonstrated in vitro and in vivo by A. lappa and its bioactive metabolites, including antimicrobial, anti-obesity, antioxidant, anticancer, anti-inflammatory, anti-diabetic, anti-allergic, antiviral, gastroprotective, hepatoprotective, and neuroprotective activities. Additionally, A. lappa has demonstrated considerable clinical efficacies and valuable applications in nanomedicine. Collectively, this review covers the properties of A. lappa and its bioactive metabolites, ethnopharmacology aspects, pharmacological effects, clinical trials, and applications in the field of nanomedicine. Hence, a significant attention should be paid to clinical trials and industrial applications of this plant with particular emphasis, on drug discovery and nanotechnology.
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Affiliation(s)
- Nermeen Yosri
- Chemistry Department of Medicinal and Aromatic Plants, Research Institute of Medicinal and Aromatic Plants (RIMAP), Beni-Suef University, Beni-Suef 62514, Egypt
| | - Sultan M Alsharif
- Biology Department, Faculty of Science, Taibah University, Al Madinah 887, Saudi Arabia
| | - Jianbo Xiao
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo, Vigo, Spain
| | - Syed G Musharraf
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Chao Zhao
- College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Aamer Saeed
- Chemistry Department, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Ruichang Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Noha S Said
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32512, Egypt
| | - Alessandro Di Minno
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; CEINGE-Biotecnologie Avanzate, Naples 80131, Italy
| | - Maria Daglia
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - Zhiming Guo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shaden A M Khalifa
- Department of Molecular Biosciences, Stockholm University, The Wenner-GrenInstitute, SE-106 91 Stockholm, Sweden
| | - Hesham R El-Seedi
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32512, Egypt; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China; Pharmacognosy Group, Department of Pharmaceutical Biosciences, Uppsala University, Biomedical Centre, Box 591, SE 751 24 Uppsala, Sweden; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing (Jiangsu Education Department), Zhenjiang 212013, China.
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Yang Y, Ding Y, Gao H, Jiang X, Zhao Q. TCQA, A Natural Caffeoylquinic Acid Derivative Attenuates H2O2-Induced Neuronal Apoptosis by Suppressing Phosphorylation of MAPKs Signaling Pathway. PLANTA MEDICA 2022; 88:1132-1140. [PMID: 34861701 DOI: 10.1055/a-1683-6361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
1,3,5-Tri-O-caffeoyl quinic acid is a caffeoylquinic acid derivative isolated from the roots of Arctium lappa L. Our previous studies have revealed that the ethyl acetate extract of the roots of A. lappa L. and the caffeoylquinic acids contained in it possess antioxidant properties, especially 1,3,5-tri-O-caffeoyl quinic acid. The present study aimed to investigate the protective effects of 1,3,5-tri-O-caffeoyl quinic acid against hydrogen peroxide-induced oxidative stress and explore the underlying mechanism. We found that 1,3,5-tri-O-caffeoyl quinic acid prevented the decline of cell viability and excessive release of lactate dehydrogenase induced by hydrogen peroxide. In addition, Hoechst 33 342 staining and Annexin V-PI double staining showed that 1,3,5-tri-O-caffeoyl quinic acid inhibited hydrogen peroxide-induced neuronal cell apoptosis. 1,3,5-Tri-O-caffeoyl quinic acid reduced the excessive production of intracellular reactive oxygen species, decreased the malondialdehyde content, and improved the activity of superoxide dismutase. Furthermore, 1,3,5-tri-O-caffeoyl quinic acid restored the loss of mitochondrial membrane potential in SH-SY5Y cells induced by hydrogen peroxide. 1,3,5-Tri-O-caffeoyl quinic acid downregulated the overexpression of proapoptotic proteins, including Bax, cytochrome c, cleaved caspase-9, and cleaved caspase-3 as well as promoted the expression of the antiapoptotic protein Bcl-2. Moreover, the phosphorylation of mitogen-activated protein kinases induced by hydrogen peroxide was inhibited by 1,3,5-tri-O-caffeoyl quinic acid. Pretreatment with 1,3,5-tri-O-caffeoyl quinic acid also promoted the activation of phosphorylated Akt. Taken together, these findings suggest that 1,3,5-tri-O-caffeoyl quinic acid exerts protective effects against hydrogen peroxide-induced neuronal apoptosis. In addition, inhibition of the mitogen-activated protein kinase signaling pathway and the activation of Akt are implicated in the antioxidant activity of 1,3,5-tri-O-caffeoyl quinic acid, giving new insight in searching for a compound with antioxidant activity for the treatment of oxidative stress-associated neurological diseases.
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Affiliation(s)
- Yue Yang
- School of Pharmacy, China Medical University, Shenyang, Liaoning, China
| | - Yufang Ding
- Department of pharmacy, Taizhou Second People's Hospital, Taizhou, Jiangsu, China
| | - Huan Gao
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Xiaowen Jiang
- Department of Clinical Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Qingchun Zhao
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
- Department of Clinical Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
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Bai M, Zhang Q, Hou ZL, Li C, Zhou WY, Yao GD, Huang XX, Song SJ. Chemical constituents from Solanum nigrum and their neuroprotective activities. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:703-712. [PMID: 34585635 DOI: 10.1080/10286020.2021.1978987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Ten compounds (1-10) including four new compounds (1-4) and six known compounds (5-10) were isolated from Solanum nigrum. Their structures were elucidated on the basis of spectroscopic data, gauge-including atomic orbital (GIAO) calculation of NMR data, DP4+ probability analysis and comparison of their experimental and calculated electronic circular dichroism (ECD) spectral data. All the isolated compounds were tested for their neuroprotective activities against H2O2-induced damage in SH-SY5Y cells. Among them, compounds 1, 5 and 7 displayed moderate neuroprotective effects.
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Affiliation(s)
- Ming Bai
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qian Zhang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zi-Lin Hou
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chuan Li
- General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Wei-Yu Zhou
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Guo-Dong Yao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
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Ultrasound-Assisted Aqueous Extraction of Chlorogenic Acid and Cynarin with the Impact of Inulin from Burdock ( Arctium lappa L.) Roots. Antioxidants (Basel) 2022; 11:antiox11071219. [PMID: 35883710 PMCID: PMC9311675 DOI: 10.3390/antiox11071219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/12/2022] [Accepted: 06/20/2022] [Indexed: 01/27/2023] Open
Abstract
The ultrasound-assisted aqueous extraction of chlorogenic acid (CGA) and cynarin with the impact of inulin from burdock (Arctium lappa L.) roots was investigated. Three extraction modes, ultrasound at 40 kHz/300 W (U-40), ultrasound at 120 kHz/300 W (U-120), and shaking at 120 rpm (S-120), were compared. The effects of process parameters on the extraction of polyphenols, CGA, cynarin, inulin, and antioxidant activity using U-40 were evaluated. In 10 min, 50 °C, and 1/30 (g/mL-water) of solid-to-liquid ratio, the order of CGA content in the dried burdock root powder (DBR) was U-40 (484.65 μg/g-DBR) > U-120 (369.93 μg/g-DBR) > S-120 (176.99 μg/g-DBR), while the order of cynarin content in DBR was U-120 (376.47 μg/g-DBR) > U-40 (341.54 μg/g-DBR) > S-120 (330.44 μg/g-DBR), showing the selective extraction of CGA and cynarin between using 40 and 120 kHz of ultrasound. The profiles of increase and then decrease in free CGA and cynarin concentrations against time revealed their degradation, including their interactions with the abundant inulin. The kinetic model, considering extraction followed by degradation, was proposed to describe the variations of free CGA and cynarin against time. This study provides an effective method using water to extract CGA, cynarin, and inulin from burdock roots.
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Yang Y, Gao H, Liu W, Liu X, Jiang X, Li X, Wu Q, Xu Z, Zhao Q. Arctium lappa L. roots ameliorates cerebral ischemia through inhibiting neuronal apoptosis and suppressing AMPK/mTOR-mediated autophagy. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 85:153526. [PMID: 33691269 DOI: 10.1016/j.phymed.2021.153526] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Arctium lappa L. roots are very popular cultivated vegetables, which possesses various pharmacological activities. Our previous studies have demonstrated that Arctium lappa L. roots exerted protective effects against H2O2, glutamate and N-methyl-D-aspartic acid (NMDA)-induced neuronal injury in vitro. However, whether Arctium lappa L. roots could prevent against cerebral ischemia and the underlying mechanism remain unclear. PURPOSE The objective of the present study was to investigate the neuroprotective effects of ethyl acetate extract of Arctium lappa L. roots (EAL) and the active ingredient 4,5-O-dicaffeoyl-1-O-[4-malic acid methyl ester]-quinic acid (DCMQA) in EAL against cerebral ischemia and explore the underlying mechanism. STUDY DESIGN The neuroprotective effects of EAL and DCMQA were investigated in rats with permanent middle cerebral artery occlusion (MCAO) and in oxygen glucose deprivation/reoxygenation (OGD/R)-stimulated SH-SY5Y cells, respectively. METHODS The infarct volume, brain edema and neurological deficits were measured following MCAO. TUNEL and Nissl staining were performed to detect neuronal loss and apoptosis of neurons in rat brains. Cell survival was measured by MTT and LDH assay. In addition, reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) levels were determined by DCFH-DA and JC-1 fluorescent probe, respectively. Hoechst 33342 staining and Annexin V-FITC/PI double staining were performed to evaluate neuronal apoptosis. The expression levels of proteins were evaluated by western blot. RESULTS EAL reduced brain infarct volume, ameliorated brain edema and improved neurological deficits in MCAO rats. In addition, EAL inhibited oxidative stress and inflammatory responses following MCAO. Besides, active compound DCMQA alleviated cytotoxicity as well as inhibited over-production of intracellular ROS and loss of MMP induced by OGD/R in SH-SY5Y cells. Moreover, EAL and DCMQA inhibited apoptosis by decreasing the expressions of pro-apoptotic proteins including bax, cytochrome c and cleaved caspase-3 while promoting the bcl-2 expression in MCAO rats and OGD/R-stimulated neurons, respectively. In addition, DCMQA suppressed the production of autophagosomes and down-regulated expression of Beclin 1 and LC3. Furthermore, inhibiting AMP-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway contributed to DCMQA-mediated suppression of autophagy induced by OGD/R. CONCLUSION Our findings demonstrate that Arctium lappa L. roots protect against cerebral ischemia through inhibiting apoptosis and AMPK/mTOR-mediated autophagy in vitro and in vivo, providing a theoretical basis for the development of CQAs in Arctium lappa L. roots as neuroprotective drugs for the prevention and treatment of ischemic stroke.
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Affiliation(s)
- Yue Yang
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Huan Gao
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Wenwu Liu
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Xin Liu
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Xiaowen Jiang
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Xiang Li
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Qiong Wu
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Zihua Xu
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Qingchun Zhao
- Department of Pharmacy, General Hospital of Northern Theater Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, China.
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Effect of in vitro gastro-intestinal digestion on the phenolic composition and antioxidant capacity of Burdock roots at different harvest time. Food Chem 2021; 358:129897. [PMID: 33915426 DOI: 10.1016/j.foodchem.2021.129897] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/04/2021] [Accepted: 03/28/2021] [Indexed: 12/18/2022]
Abstract
The current study aimed to evaluate how the harvest time affects the phenolic composition in Burdock root flours (BRF) and how these phenolics are influenced by the gastro-intestinal digestive environment. Burdock roots were harvested in 2020 in Jiangsu Province in June (B1), July (B2) and August (B3). The main phenolic, 5-O-caffeoylquinic acid (5-CQA) decreased after in vitro digestion from 1.14 to 0.22 mg/g (B1 < B2 < B3). Total phenolic content of BRF was 61% lower after in vitro digestion whereas 5-CQA bioaccessibility remained at about 60%. Twelve other phenolic compounds were tentatively identified after in vitro digestion. An average reduction in antioxidant capacity of 27% and 10% was observed for DPPH and ABTS, respectively. In conclusion, data demonstrated that phenolic composition, bioaccessibility and antioxidant capacity of Burdock roots harvested at different times were subject to the influence of in vitro gastrointestinal digestion.
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Neuroprotective effects of Actinidia eriantha cv. Bidan kiwifruit on amyloid beta-induced neuronal damages in PC-12 cells and ICR mice. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Burdock (Arctium lappa L) roots as a source of inulin-type fructans and other bioactive compounds: Current knowledge and future perspectives for food and non-food applications. Food Res Int 2021; 141:109889. [PMID: 33641945 DOI: 10.1016/j.foodres.2020.109889] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 09/06/2020] [Accepted: 11/04/2020] [Indexed: 11/22/2022]
Abstract
The roots and tubers of the Asteraceae family are known as a source of various oligosaccharides, and chicory roots and Jerusalem artichoke have stood out for its commercial viability. However burdock root (Arctium lappa L.), which is adapted to temperate climate, moist, and sandy soil, is still unknown as health food in the western world. This review showed the potential of burdock roots as a source of prebiotic fibers, chlorogenic acids, cinnarine, lignans, and quercetin. The extraction methods of burdock functional compounds are made with water, temperature and time variations only. Biological assays showed antioxidant activity, anti-inflammatory, and hypolipidemic properties, and gastric mucosal defense mechanisms, among others. Therefore, the use of burdock roots as functional food should be encouraged in countries that have imported products derived from other roots of the same family for health benefits.
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Liu W, Li J, Zhang X, Zu Y, Yang Y, Liu W, Xu Z, Gao H, Sun X, Jiang X, Zhao Q. Current Advances in Naturally Occurring Caffeoylquinic Acids: Structure, Bioactivity, and Synthesis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10489-10516. [PMID: 32846084 DOI: 10.1021/acs.jafc.0c03804] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Caffeoylquinic acids (CQAs) are a broad class of secondary metabolites that have been found in edible and medicinal plants from various families. It has been 100 years since the discovery of chlorogenic acid in 1920. In recent years, a number of naturally derived CQAs have been isolated and structurally elucidated. Accumulated evidence demonstrate that CQAs have a wide range of biological activities, such as antioxidation, antibacterial, antiparasitic, neuroprotective, anti-inflammatory, anticancer, antiviral, and antidiabetic effects. Up to date, some meaningful progresses on the biosynthesis and total synthesis of CQAs have also been made. Therefore, it is necessary to comprehensively summarize the structure, biological activity, biosynthesis, and chemical synthesis of CQAs. This review provides extensive coverage of naturally occurring CQAs discovered from 1990 until 2020. Modern isolation techniques, chemical data (including structure, biosynthesis, and total synthesis), and bioactivity are summarized. This would be helpful for further research of CQAs as potential pharmaceutical agents.
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Affiliation(s)
- Wenwu Liu
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning 110840, People's Republic of China
| | - Jingda Li
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Xuemei Zhang
- School of Life Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Yuxin Zu
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Yue Yang
- School of Life Sciences, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Wenjie Liu
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Zihua Xu
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning 110840, People's Republic of China
| | - Huan Gao
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning 110840, People's Republic of China
| | - Xue Sun
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning 110840, People's Republic of China
| | - Xiaowen Jiang
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning 110840, People's Republic of China
| | - Qingchun Zhao
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, Liaoning 110840, People's Republic of China
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Yang Y, Gao H, Liu W, Jiang X, Shen Z, Li X, Ren T, Xu Z, Cheng G, Zhao Q. DCMQA, a caffeoylquinic acid derivative alleviates NMDA-induced neurotoxicity via modulating GluN2A and GluN2B-containing NMDA receptors in vitro. Toxicol In Vitro 2020; 67:104888. [PMID: 32416136 DOI: 10.1016/j.tiv.2020.104888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/07/2020] [Accepted: 05/11/2020] [Indexed: 12/14/2022]
Abstract
Compound DCMQA (4, 5-O-dicaffeoyl-1-O-[4-malic acid methyl ester]-quinic acid) is a natural caffeoylquinic acid derivative isolated from Arctium lappa L. roots. Caffeoylquinic acid derivatives have been reported to possess neuroprotective effects through inhibiting oxidative stress and apoptosis in vitro. However, whether DCMQA exerts protective effects on N-methyl-D-aspartate (NMDA)-induced neurotoxicity and the underlying mechanism has not been elucidated. In this study, the results indicated that pretreatment of DCMQA prevented the loss of cell viability and attenuated the LDH leakage in SH-SY5Y cells exposed to NMDA. Hoechst 33342 staining and Annexin V-PI double staining illustrated that DCMQA suppressed NMDA-induced morphological damage and neuronal apoptosis. Moreover, DCMQA inhibited NMDA-mediated Ca2+ influx, excessive intracellular ROS generation and loss of mitochondrial membrane potential (MMP). Western blot analysis showed that DCMQA attenuated the Bax/Bcl-2 ratio, release of cytochrome c as well as expression of caspase-9 and caspase-3. Besides, DCMQA down-regulated GluN2B-containing NMDA receptors (NMDARs) and up-regulated GluN2A-containing NMDARs, promoted the disruption of nNOS and PSD95 as well as activation of CaMK II-α. Furthermore, computational docking study indicated that DCMQA possessed a good affinity for NMDARs. These results indicated that DCMQA protects SH-SY5Y cells against NMDA-induced neuronal damage. In addition, the underlying mechanisms of DCMQA-mediated neuroprotection are associated with modulating NMDARs and disruption of nNOS-PSD95 as well as the activation of CaMK II-α.
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Affiliation(s)
- Yue Yang
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Huan Gao
- Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Wenwu Liu
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Xiaowen Jiang
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Zexu Shen
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Xiang Li
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Tianshu Ren
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Zihua Xu
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Gang Cheng
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China
| | - Qingchun Zhao
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Military Area, 83 Wenhua Road, Shenyang, Liaoning 110016, People's Republic of China.
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