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Zhang H, Liu Y, Zhang L, Tian Z, Zhang H, Jiang H. Rapid identification of chemical components and screening of acetylcholinesterase inhibitors from Dalbergia odorifera based on mass defect and diagnostic ion filtering strategy, affinity ultrafiltration, and liquid chromatography-tandem mass spectrometry. J Sep Sci 2024; 47:e2400288. [PMID: 39034832 DOI: 10.1002/jssc.202400288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/23/2024]
Abstract
Dalbergia odorifera is a natural product rich in pharmacological ingredients, but the comprehensive characterization and rapid profiling of active components remain a challenge. Thus, an integrated data mining and identification strategy was exploited to efficiently identify the chemical constituents and screen acetylcholinesterase inhibitors (AChEIs) through affinity ultrafiltration and ultra-high-performance liquid chromatography-mass spectrometry (AUF-UHPLC-MS). As a result, polygonal mass defect filtering, diagnostic product ions, and neutral loss rules were created for rapid structural classification and component identification. A total of 140 flavonoids were tentatively characterized, including 41 isoflavonoids, 23 flavanones, 21 isoflavans, 19 flavones and flavonols, 13 neoflavonoids, 11 isoflavanones, seven flavone glycosides, and five chalcones. Subsequently, six natural AChEIs including tectorigenin, fisetin, dalbergin, pterostilbene, isoliquiritigenin, and biochanin A were screened out using AUF-UHPLC-MS and molecular docking. Meanwhile, the AChE inhibitory activities of the six compounds were assessed in vitro, tectorigenin, fisetinand, and dalbergin have moderate inhibitory activity. In conclusion, a novel strategy for systematic characterization and further screening of active compounds in natural products was established, which provides a material basis for quality control of Dalbergia odorifera.
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Affiliation(s)
- Hongbin Zhang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuecheng Liu
- Institute of Traditional Chinese Medicine Analysis, Shandong Academy of Chinese Medicine, Jinan, China
| | - Ling Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhenhua Tian
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Hui Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Haiqiang Jiang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Province Cardiovascular Disease TCM Precision Treatment Engineering Research Centre, Shandong University of Traditional Chinese Medicine, Jinan, China
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Jiao N, Xu J, Wang Y, Li D, Chen F, Chen Y, Chen J. Genome-wide characterization of post-transcriptional processes related to wood formation in Dalbergia odorifera. BMC Genomics 2024; 25:372. [PMID: 38627613 PMCID: PMC11022335 DOI: 10.1186/s12864-024-10300-7] [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: 08/13/2023] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Alternative polyadenylation (APA), alternative splicing (AS), and long non-coding RNAs (lncRNAs) play regulatory roles in post-transcriptional processes in plants. However, little is known about their involvement in xylem development in Dalbergia odorifera, a valuable rosewood species with medicinal and commercial significance. We addressed this by conducting Isoform Sequencing (Iso-Seq) using PacBio's SMRT technology and combined it with RNA-seq analysis (RNA sequencing on Illumina platform) after collecting xylem samples from the transition zone and the sapwood of D. odorifera. RESULTS We identified 14,938 full-length transcripts, including 9,830 novel isoforms, which has updated the D. odorifera genome annotation. Our analysis has revealed that 4,164 genes undergo APA, whereas 3,084 genes encounter AS. We have also annotated 118 lncRNAs. Furthermore, RNA-seq analysis identified 170 differential alternative splicing (DAS) events, 344 genes with differential APA site usage (DE-APA), and 6 differentially expressed lncRNAs in the transition zone when compared to the sapwood. AS, APA, and lncRNAs are differentially regulated during xylem development. Differentially expressed APA genes were enriched for terpenoid and flavonoid metabolism, indicating their role in the heartwood formation. Additionally, DE-APA genes were associated with cell wall biosynthesis and terpenoid metabolism, implying an APA's role in wood formation. A DAS gene (involved in chalcone accumulation) with a significantly greater inclusion of the last exon in the transition zone than in the sapwood was identified. We also found that differentially expressed lncRNAs targeted the genes related to terpene synthesis. CONCLUSIONS This study enhances our understanding of the molecular regulatory mechanisms underlying wood formation in D. odorifera, and provides valuable genetic resources and insights for its molecular-assisted breeding.
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Affiliation(s)
- Nanbo Jiao
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya, 572019, China
| | - Jieru Xu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya, 572019, China
| | - Yue Wang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya, 572019, China
| | - Dunxi Li
- Hainan Academy of Forestry (Hainan Academy of Mangrove), Haikou, 571100, China
| | - Feifei Chen
- Hainan Academy of Forestry (Hainan Academy of Mangrove), Haikou, 571100, China
| | - Yu Chen
- Hainan Academy of Forestry (Hainan Academy of Mangrove), Haikou, 571100, China
| | - Jinhui Chen
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya, 572019, China.
- Hainan Academy of Forestry (Hainan Academy of Mangrove), Haikou, 571100, China.
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Zhen L, He S, Xue Q, Liu Y, Cao J, Zhao T, Cheng G, Wang Y. Influence of Ultra-High-Pressure Pretreatment Method on Chemical Constituents, Antioxidant and Cytoprotective Activities of Free, Esterified, and Bound Phenolics from Anneslea Fragrans Wall. Leaves. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023:10.1007/s11130-023-01071-9. [PMID: 37266882 DOI: 10.1007/s11130-023-01071-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Accepted: 04/30/2023] [Indexed: 06/03/2023]
Abstract
Anneslea fragrans Wall., an edible and medicinal plant, is traditionally used to treat liver and gastrointestinal diseases. This paper aimed to investigate the influence of ultra-high pressure (UHP) pretreatment on the phenolics profiling, antioxidant, and cytoprotective activities of free (FP), esterified (EP), and bound (BP) phenolics from A. fragrans leaves. A total of 32 compounds were characterized and quantified. The davidigenin (44.46 and 113.37 mg/g extract) was the highest in A. fragrans leaves. The vitexin (9), afzelin (10), coreopsin (15), and davidigenin (28) were analyzed with MS2 fragment pathways. Results showed that UHP treated A. fragrans leaves had higher total phenolic (TPC) and total flavonoid (TFC) contents of FP, EP, and BP fractions than those in the raw leaves. Moreover, UHP pretreated A. fragrans leaves had higher scavenging activities on DPPH+• and ABTS+•, and inhibitory effects on the intracellular ROS generation in H2O2-induced HepG2 cells. UFP showed the highest inhibition of ROS production among the samples. Therefore, UHP pretreatment method might be used as an effective strategy for elevating the availabilities of A. fragrans leaves to develop functional foods.
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Affiliation(s)
- Li Zhen
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Shuyue He
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Qingwang Xue
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China
| | - Yaping Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jianxin Cao
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Tianrui Zhao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Guiguang Cheng
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Yudan Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, China.
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Singh Y, Rawat P, Kumar A, Singh SK, Mishra DK, Kanojiya S. Exploration of new and alternative sources of targeted bioflavonoids using ultra‐performance liquid chromatography‐tandem mass spectrometry. SEPARATION SCIENCE PLUS 2023. [DOI: 10.1002/sscp.202300020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Yatendra Singh
- Sophisticated Analytical Instrument Facility & Research, Division CSIR‐Central Drug Research Institute Lucknow India
| | - Priyanka Rawat
- Sophisticated Analytical Instrument Facility & Research, Division CSIR‐Central Drug Research Institute Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Akhilesh Kumar
- Sophisticated Analytical Instrument Facility & Research, Division CSIR‐Central Drug Research Institute Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Sumit K. Singh
- Sophisticated Analytical Instrument Facility & Research, Division CSIR‐Central Drug Research Institute Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Dipak K. Mishra
- Sophisticated Analytical Instrument Facility & Research, Division CSIR‐Central Drug Research Institute Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Sanjeev Kanojiya
- Sophisticated Analytical Instrument Facility & Research, Division CSIR‐Central Drug Research Institute Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
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Ali A, Cottrell JJ, Dunshea FR. LC-MS/MS Characterization of Phenolic Metabolites and Their Antioxidant Activities from Australian Native Plants. Metabolites 2022; 12:1016. [PMID: 36355099 PMCID: PMC9698446 DOI: 10.3390/metabo12111016] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/11/2022] [Accepted: 10/21/2022] [Indexed: 09/29/2023] Open
Abstract
Polyphenols are considered vital bioactive compounds beneficial for human health. The Australian flora is enriched with polyphenols which are not fully characterized yet. Thus, the main objective of this study was to identify and characterize the Australian native sandalwood nuts, wattle seeds, lemongrass, and old man saltbush for phenolic compounds and their antioxidant activities. In this study, we tentatively identified a total of 155 phenolic compounds including 25 phenolic acids, 55 flavonoids, 22 isoflavonoids, 22 tannins, 22 lignans, 33 stilbenes, 33 coumarins and derivatives, 12 tyrosols and derivatives, and 6 phenolic terpenes. The highest total phenolic content (TPC) (15.09 ± 0.88 mg GAE/g) was quantified in lemongrass, while the lowest TPC (4.17 ± 0.33 mg GAE/g) was measured in wattle seeds. The highest total flavonoid content (TFC) and total condensed tannins (TCT) were measured in lemongrass and wattle seeds, respectively. A total of 18 phenolic metabolites were quantified/semi-quantified in this experiment. Lemongrass contains a vast number of phenolic metabolites.
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Affiliation(s)
- Akhtar Ali
- School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Jeremy J. Cottrell
- School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Frank R. Dunshea
- School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia
- The Faculty of Biological Sciences, The University of Leeds, Leeds LS2 9JT, UK
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Yang M, Li J, Zhao C, Xiao H, Fang X, Zheng J. LC-Q-TOF-MS/MS detection of food flavonoids: principle, methodology, and applications. Crit Rev Food Sci Nutr 2021:1-21. [PMID: 34672231 DOI: 10.1080/10408398.2021.1993128] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Flavonoids have been attracting increasing research interest because of their multiple health promoting effects. However, many flavonoids with similar structures are present in foods, often at low concentrations, which increases the difficulty of their separation and identification. Liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (LC-Q-TOF-MS/MS) has become one of the most widely used techniques for flavonoid detection. LC-Q-TOF-MS/MS can achieve highly efficient separation by LC; it also provides structural information regarding flavonoids by Q-TOF-MS/MS. This review presents a comprehensive summary of the scientific principles and detailed methodologies (e.g., qualitative determination, quantitative determination, and data processing) of LC-Q-TOF-MS/MS specifically for food flavonoids. It also discusses the recent applications of LC-Q-TOF-MS/MS in determination of flavonoid types and contents in agricultural products, changes in their structures and contents during food processing, and metabolism in vivo after consumption. Moreover, it proposes necessary technological improvements and potential applications. This review would facilitate the scientific understanding of theory and technique of LC-Q-TOF-MS/MS for flavonoid detection, and promote its applications in food and health industry.
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Affiliation(s)
- Minke Yang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Food Science, South China Agricultural University, Guangzhou, China
| | - Juan Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chengying Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China.,Guangdong Province Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Xiang Fang
- College of Food Science, South China Agricultural University, Guangzhou, China.,Guangdong Province Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China.,Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
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Ali A, Wu H, Ponnampalam EN, Cottrell JJ, Dunshea FR, Suleria HAR. Comprehensive Profiling of Most Widely Used Spices for Their Phenolic Compounds through LC-ESI-QTOF-MS 2 and Their Antioxidant Potential. Antioxidants (Basel) 2021; 10:721. [PMID: 34064351 PMCID: PMC8147794 DOI: 10.3390/antiox10050721] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/27/2021] [Accepted: 04/30/2021] [Indexed: 12/18/2022] Open
Abstract
Spices have long been used to improve food flavor, due to their appealing fragrance and sensory attributes. Nowadays, spices-based bioactives, particularly phenolic compounds, have gained attention due to their wide range of significant effects in biological systems. The present study was conducted to characterize the 12 widely used spices (allspice, black cardamom, black cumin, black pepper, cardamom, cinnamon, clove, cumin, fennel, nutmeg, star-anise, and turmeric) for their phenolics with the liquid chromatography-electrospray ionization quadrupole time-of-flight mass spectrometry (LC-ESI-QTOF-MS2), polyphenols estimation, and their antioxidant potential. Total phenolics, total flavonoids, and total tannin content and their antioxidant activities were estimated in all spices. Clove and allspice had the highest value of total polyphenol content (215.14 and 40.49 mg gallic acid equivalent (GAE) per g of sample), while clove and turmeric had the highest total flavonoids (5.59 mg quercetin equivalent (QE) per g of sample) and total tannin contents (23.58 mg catechin equivalent (CE) per g of sample), respectively. On the other hand, black cumin and black pepper had the highest phosphomolybdate activity (15.61 and 15.43 mg ascorbic acid equivalent (AAE) per g of sample), while clove was almost identified with highest free radical scavenging capacity. A positive correlation was observed among phenolic compounds and antioxidant activities. In this quest, a total of 79 phenolic compounds were tentatively characterized by using LC-ESI-QTOF-MS2 including 26 phenolic acids, 33 flavonoids, 16 other polyphenols, and 4 lignans. The high-performance liquid chromatography coupled with photodiode array detector (HPLC-PDA) quantification of phenolic compounds exhibited higher phenolic acids. These results provided us some valuable information that spices have powerful antioxidant potential that can be further used in human food and animal feed as a supplement for different health promoting applications.
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Affiliation(s)
- Akhtar Ali
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia; (A.A.); (H.W.); (J.J.C.); (F.R.D.)
| | - Hanjing Wu
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia; (A.A.); (H.W.); (J.J.C.); (F.R.D.)
| | - Eric N. Ponnampalam
- Animal Production Sciences, Agriculture Victoria Research, Department of Jobs, Precincts and Regions, AgriBio, Bundoora, VIC 3083, Australia;
| | - Jeremy J. Cottrell
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia; (A.A.); (H.W.); (J.J.C.); (F.R.D.)
| | - Frank R. Dunshea
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia; (A.A.); (H.W.); (J.J.C.); (F.R.D.)
- Faculty of Biological Sciences, University of Leads, Leads LS2 9JT, UK
| | - Hafiz A. R. Suleria
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, The University of Melbourne, Parkville, VIC 3010, Australia; (A.A.); (H.W.); (J.J.C.); (F.R.D.)
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Chemical characterization of Melilotus messanensis (L.) all.: Antioxidant, antidiabetic and antimutagenic effects in alloxan induced diabetic rats. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.101976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Sun K, Su C, Li W, Gong Z, Sha C, Liu R. Quality markers based on phytochemical analysis and anti-inflammatory screening: An integrated strategy for the quality control of Dalbergia odorifera by UHPLC-Q-Orbitrap HRMS. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 84:153511. [PMID: 33652358 DOI: 10.1016/j.phymed.2021.153511] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/16/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Quality control, key for the clinical application of traditional Chinese medicines (TCMs), should be connected to the authentication and efficacy of TCMs. The heartwood of Dalbergia odorifera has been widely used to treat inflammation-related diseases. However, in the Chinese pharmacopeia, only the total volatile oil, which does not sufficiently reflect the clinical efficacy, is used as a quality control indicator. PURPOSE Establishing a "phytochemical-specificity-effectiveness-Q-marker" analytical strategy to improve the quality control of D. odorifera. METHODS Combined with biosynthetic pathway analysis, phytochemical compositions identified by UHPLC-Q-Orbitrap HRMS were used to build substantial phytochemical groups and further discover specific Q-markers. Then, lipopolysaccharide-stimulated RAW 264.7 cells were used to screen effective anti-inflammatory ingredients. Finally, a UHPLC-HRMS method was developed and validated to quantify the selected Q-markers in D. odorifera samples. RESULTS Along the constructed biosynthetic pathways, 93 phytochemical components were identified in D. odorifera, including 7 chalcones, 13 flavanones, 21 isoflavones, 21 isoflavanones, 3 flavonols, 19 neoflavones, etc. Among them, 31 compounds representing these 6 categories were further evaluated for their anti-inflammatory activities. It revealed that the extract of D. odorifera and nine flavonoids in the noncytotoxic range could alleviated lipopolysaccharide-stimulated inflammation in RAW 264.7 cells by decreasing the production of proinflammatory mediators such as nitric oxide and interleukin-6. Notably, neoflavones, as species-specific components, exhibited superior anti-inflammatory activities among the representative compounds. Finally, 12 Q-markers (butin, liquiritigenin, eriodictyol, melanettin, naringenin, butein, genistein, 4'-hydroxy-4-methoxydalbergione, isoliquiritigenin, 2,4-dihydroxy-5-methoxybenzophenone, medicarpin, and pinocembrin), which reflect specificity and effectiveness, were successfully quantified in 10 batches of samples from different origins. The origins and consistency of D. odorifera could be efficiently discriminated by hierarchical cluster analysis (HCA). CONCLUSION The analysis strategy that combines phytochemical analysis with anti-inflammatory screening clarified the therapeutic material basis and discovered Q-markers, which possibly offers a more comprehensive quality assessment of D. odorifera.
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Affiliation(s)
- Kang Sun
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Chaonan Su
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Wenjing Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Zhao Gong
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Chunjie Sha
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Rongxia Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
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Variations of Flavone Glycosides Profile Underscore the Necessity of Quality Control of Prepared Microctis Folium Slices. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8887489. [PMID: 33293998 PMCID: PMC7718053 DOI: 10.1155/2020/8887489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/20/2020] [Accepted: 11/10/2020] [Indexed: 12/03/2022]
Abstract
Microctis Folium (MF), the dried leaves of Microcos paniculata, is widely used as a medical and food dual-purpose herb in South-east Asia and China. However, the quality control of MF is not well studied. A simple and reliable quality control method was urgently needed for its growing usage. Herein, at first, its main active components were identified by UPLC-ESI-qTOF-MS, and a representative MF flavone glycosides profile consisting of ten compounds was illustrated, which is the most detailed one up to now. Successively, using vitexin as the reference substance, a novel QAMS method with HPLC for quantification of the ten identified flavone glycosides was developed and methodologically validated. Furthermore, making use of the abovementioned QAMS method, quantitative profiling of 21 batches of prepared MF slices collected from different hospital pharmacies were performed. As a result, the total contents of ten flavone glucosides and the content of specific compound showed obvious variations. Using the ten compounds' contents dataset, the 21 batches of samples were divided into two distinct clusters by HCA. In sum, our results indicated that it was of great importance to take quality control of prepared MF slices and we presented a robust and simple method for their quantitative determination, which should be beneficial for the quality control of MF and its derived products.
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Phytochemical profile, antioxidant and cytotoxic potential of Parkinsonia aculeata L. growing in Saudi Arabia. Saudi Pharm J 2020; 28:1129-1137. [PMID: 32922145 PMCID: PMC7474181 DOI: 10.1016/j.jsps.2020.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/02/2020] [Indexed: 02/08/2023] Open
Abstract
Parkinsonia aculeata L. growing in Saudi Arabia was investigated for its phytochemical profile, antioxidant, and cytotoxic properties. UPLC-ESI-MS/MS was employed as a powerful technique for the characterization of secondary metabolites from a hydroalcoholic extract, dichloromethane, and ethyl acetate fractions of P. aculeata L. aerial parts. Sixty-nine compounds (flavonoids, anthocyanins, phenolics and fatty acids) were detected and characterized; flavonoids were the abundant components in the analyzed samples. The dichloromethane fraction was rich in phenolics as vanillic acid hexoside, flavonols as 3,7-dimthylquercetin, and flavones as 3'-hydroxymelanettin. However, the ethyl acetate fraction was rich in flavonoid-C-glycosides as luteolin-8-C-β-D-glucoside (orientin) and apigenin-8-C-glucoside (vitexin), flavonoid- O, C-diglycosides such as luteolin 7-O-[6''-dihydrogalloyl]-glucosyl-8-C-pentosyl-(1 → 2)-glucoside and 2''-O-rhamnosyl isoorientin. These compounds were identified for the first time in dichloromethane and ethyl acetate fractions of Saudi P. aculeata L. Additionally, all the samples were assessed for antioxidant activity using DPPH radical scavenging method and for cytotoxic activity through MTT assay. Accordingly, the most active fraction was the ethyl acetate which showed the highest antioxidant activity (SC50 = 57.4 ± 1.2 μg/mL) compared with the positive control, ascorbic acid (SC50 = 12.4 ± 0.5 μg/mL) and moderate cytotoxicity against HepG-2 (hepatocellular carcinoma) and MCF-7 (breast carcinoma) cell lines with IC50 = 56.9 ± 3.1 and 95.8 ± 3.8 μg/mL, respectively compared with cisplatin (IC50 = 3.67 ± 0.22 and 5.71 ± 0.57 μg/mL, respectively for both cell lines). The antioxidant and cytotoxic activities may be attributed to the presence of high percentage of phenolic compounds and hydroxylated flavonoids detected in ethyl acetate fraction using UPLS-ESI-MS/MS.
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Antimicrobial activity of Apis mellifera L. and Trigona sp. propolis from Nepal and its phytochemical analysis. Biomed Pharmacother 2020; 129:110435. [PMID: 32593967 DOI: 10.1016/j.biopha.2020.110435] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 12/31/2022] Open
Abstract
In this study, we evaluated antimicrobial activity, antimicrobial activity in combination with antibiotics, and chemical composition of Nepalese propolis 70% ethanolic extracts. Propolis originated from two genera of bees - Apis mellifera L. and Trigona sp. HPLC-DAD-MS/MS analyses revealed that the composition of both extracts was almost the same and the main components were flavonoid aglycones (mainly neoflavonoids, isoflavonoids) and pterocarpans. The highest antibacterial activity (disc diffusion test) was observed against Helicobacter pylori, Staphylococcus aureus and Shigella flexneri. Antibiotics exhibited synergism with Apis mellifera L. and Trigona sp. propolis against S. aureus and the strongest effect was observed for the combination with amikacin and tetracycline. Moreover, Nepalase propolis inhibited filamentation of C. albicans and caused oxidative stress by production of the superoxide anion radical (O2-) and a lower concentration of the hydroxyl radical (OH). Propolis extracts are potent antibacterial agents and may be used in combination with antibiotics.
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UPLC-ESI-MS/MS Profile and Antioxidant, Cytotoxic, Antidiabetic, and Antiobesity Activities of the Aqueous Extracts of Three Different Hibiscus Species. J CHEM-NY 2020. [DOI: 10.1155/2020/6749176] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The aqueous extracts of Hibiscus calyphyllus (HcA), Hibiscus micranthus (HmA), and Hibiscus deflersii (HdA) growing in Saudi Arabia did not receive enough attention in phytochemical and biological studies. This inspired the authors to investigate the phytochemicals of these extracts for the first time using UPLC-ESI-MS/MS in negative and positive ionization modes. The analysis afforded the tentative identification of 103 compounds including phenolic compounds, flavonoids, and anthocyanins. Moreover, in vitro evaluations of their cytotoxic, antioxidant, antidiabetic, and antiobesity activities were carried out. The results showed that aqueous extract of Hibiscus calyphyllus had the highest activity as an antioxidant agent (SC50 = 111 ± 1.5 μg/mL) compared with ascorbic acid (SC50 = 14.2 ± 0.5 μg/mL). MTT assay was used to evaluate cytotoxic activity compared to cisplatin. Hibiscus deflersii showed the most potent cytotoxic effect against A-549 (human lung carcinoma) with IC50 = 50 ± 5.1 μg/mL, and Hibiscus micranthus showed a close effect with IC50 = 60.4 ± 1.7 μg/mL. Hibiscus micranthus showed the most potent effect on HCT-116 (human colon carcinoma) with IC50 = 56 ± 1.9 μg/mL compared with cisplatin (IC50 = 7.53 ± 3.8 μg/mL). HcA and HdA extracts showed weak cytotoxic activity against A-549 and HCT-116 cell lines compared to the other extracts. Eventually, Hibiscus deflersii showed astonishing antidiabetic (IC50 = 56 ± 1.9 μg/mL) and antiobesity (IC50 = 95.45 ± 1.9 μg/mL) activities using in vitro α-amylase inhibitory assay (compared with acarbose (IC50 = 34.71 ± 0.7 μg/mL)) and pancreatic lipase inhibitory assay (compared with orlistat (IC50 = 23.8 ± 0.7 μg/mL)), respectively. In conclusion, these findings are regarded as the first vision of the phytochemical constituents and biological activities of different Hibiscus aqueous extracts. Hibiscus deflersii aqueous extract might be a hopeful origin of functional constituents with anticancer (on A-549 cell line), antidiabetic, and antiobesity activities. It might be a natural alternative remedy and nutritional policy for diabetes and obesity treatment without negative side effects. Isolation of the bioactive phytochemicals from the aqueous extracts of aerial parts of Hibiscus calyphyllus, Hibiscus micranthus, and Hibiscus deflersii and estimation of their biological effects are recommended in further studies.
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Zhao X, Wang C, Meng H, Yu Z, Yang M, Wei J. Dalbergia odorifera: A review of its traditional uses, phytochemistry, pharmacology, and quality control. JOURNAL OF ETHNOPHARMACOLOGY 2020; 248:112328. [PMID: 31654799 DOI: 10.1016/j.jep.2019.112328] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 10/18/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dalbergia odorifera, a traditional herbal medicine, has long been used in China for dissipating blood stasis, regulating the flow of qi, and relieving pain. AIM OF THIS REVIEW This review aims to provide comprehensive and up-to-date information about the traditional uses, phytochemistry, pharmacology, and quality control of D. odorifera. Additionally, perspectives for possible future investigations on D. odorifera are also discussed. MATERIALS AND METHODS Information on D. odorifera was obtained from a library database and electronic searches (e.g., Elsevier, Springer, ScienceDirect, Wiley, Web of Science, PubMed, Google Scholar, China Knowledge Resource Integrated). RESULTS According to classical Chinese herbal texts and the Chinese Pharmacopoeia, D. odorifera promotes blood circulation, relieves pain, and eliminates blood stasis, and it can be used to treat cardio-cerebrovascular diseases in traditional Chinese medicine prescriptions. The chemical constituents of D. odorifera have been well studied, with approximately 175 metabolites having been identified, including flavonoids, phenols, arylbenzofurans, and quinones. The species also contains well-studied volatile oil. Its flavonoids and volatile oil are generally considered to be essential for its pharmacological activity. Modern pharmacology research has confirmed that isolated components and crude extracts of D. odorifera possess wide-ranging pharmacological effects, including anti-inflammatory, anti-angina, anti-oxidative, and other activities. Additionally, there are few quality control studies on D. odorifera. CONCLUSIONS To date, significant progress has been made in D. odorifera phytochemistry and pharmacology. Thus, modern pharmacological research has provided some evidence for local or traditional uses. D. odorifera also showed therapeutic potential in cardiovascular and coronary heart diseases. However, the present findings are insufficient to explain its mechanisms of action. Additionally, the mechanism of heartwood formation, artificial induction technology for heartwood production, and quality control of D. odorifera require further detailed research.
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Affiliation(s)
- Xiangsheng Zhao
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou, 570311, China
| | - Canhong Wang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou, 570311, China
| | - Hui Meng
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou, 570311, China
| | - Zhangxin Yu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou, 570311, China
| | - Meihua Yang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou, 570311, China; Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Jianhe Wei
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou, 570311, China; Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
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Zhao X, Zhang S, Liu D, Yang M, Wei J. Analysis of Flavonoids in Dalbergia odorifera by Ultra-Performance Liquid Chromatography with Tandem Mass Spectrometry. Molecules 2020; 25:molecules25020389. [PMID: 31963485 PMCID: PMC7024225 DOI: 10.3390/molecules25020389] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/09/2020] [Accepted: 01/15/2020] [Indexed: 12/18/2022] Open
Abstract
Dalbergia odorifera, a traditional Chinese medicine, has been used to treat cardio- and cerebrovascular diseases in China for thousands of years. Flavonoids are major active compounds in D. odorifera. In this paper, a rapid and sensitive ultra-high performance liquid chromatography-triple quadrupole mass spectrometry method was developed and validated for simultaneous determination of 17 flavonoids in D. odorifera. Quantification was performed by multiple reaction monitoring using electrospray ionization in negative ion mode. Under the optimum conditions, calibration curves for the 17 analytes displayed good linearity (r2 > 0.9980). The intra- and inter-day precisions (relative standard deviations) were lower than 5.0%. The limit of quantitation ranged from 0.256 to 18.840 ng/mL. The mean recovery range at three spiked concentrations was 94.18-101.97%. The validated approach was successfully applied to 18 samples of D. odorifera. Large variation was observed for the contents of the 17 analytes. Sativanone and 3'-O-methylviolanone were the dominant compounds. The fragmentation behaviors of six flavonoids were investigated using UPLC with quadrupole time-of-flight tandem mass spectrometry. In negative ion electrospray ionization mass spectrometry, all the flavonoids yielded prominent [M - H]- ions. Fragments for losses of CH3, CO, and CO2 were observed in the mass spectra. Formononetin, liquiritigenin, isoliquiritigenin, sativanone, and alpinetin underwent retro-Diels-Alder fragmentations. The proposed method will be helpful for quality control of D. odorifera.
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Affiliation(s)
- Xiangsheng Zhao
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China; (X.Z.); (S.Z.); (M.Y.)
| | - Shihui Zhang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China; (X.Z.); (S.Z.); (M.Y.)
| | - Dan Liu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China;
| | - Meihua Yang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China; (X.Z.); (S.Z.); (M.Y.)
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Jianhe Wei
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China; (X.Z.); (S.Z.); (M.Y.)
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
- Correspondence: ; Tel.: +86-10-57833358
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Cherfia R, Zaiter A, Akkal S, Chaimbault P, Abdelwahab AB, Kirsch G, Kacem Chaouche N. New approach in the characterization of bioactive compounds isolated from Calycotome spinosa (L.) Link leaves by the use of negative electrospray ionization LITMS n, LC-ESI-MS/MS, as well as NMR analysis. Bioorg Chem 2019; 96:103535. [PMID: 32000017 DOI: 10.1016/j.bioorg.2019.103535] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 02/06/2023]
Abstract
Two novel compounds were isolated for the first time from Calycotome spinosa (L.) Link, an alkaloid 5-Hydroxy-1H-indole (4) and a cyclitol D-pinitol (5), together with the three well-known flavonoids; Chrysin-7-O-(β-D-glucopyranoside) (1), Chrysin-7-O-β-D-(6″-acetyl)glycopyranoside (2) and Apigenin-7-O-β-D-glycopyranoside (3). The chemical structures of the isolated compounds were elucidated by spectroscopic data and mass spectrometric analyses; including a fresh approach 1D-NMR, 2D-NMR with LC-ESI-MS/MS. In this study, the new compound (4) that has been obtained from the leaves MeOH extract presented the best radical scavenging activity (DPPH) (IC50 < 10 µg/mL) compared to the standard butylated hydroxytoluene (BHT, IC50 = 34.73 ± 0.23 μg/mL) and showed the highest total antioxidant capacity (TAC = 985.54 ± 0.13 mg AAE/g extract) in contrast to ascorbic acid (TAC = 905.95 ± 0.07 mg AAE/g extract). Furthermore, the strongest reducing power (EC50 = 344.82 ± 0.02 µg/mL), as well as the remarkable scavenging potential by ABTS assay (IC50 = 7.8 ± 0.43 µg/mL), were exhibited by the same composite (4). Followed by the methanol crude extract and the compound (3) that also showed a potent antioxidant (DPPH; IC50 = 41.04 ± 0.15 and 47.36 ± 0.21 µg/mL, TAC; 671.02 ± 0.21 and 608.67 ± 0.34 mg AAE/g extract, FRAP; EC50 = 763.73 ± 0.32 and 814.61 ± 0.31 µg/mL, ABTS; IC50 = 19.18 ± 0.06 and 63.72 ± 0.64 µg/mL, respectively), but less than the previous samples. On the opposite side, compound (5) had the lowest activity, in which its values were less interesting to determine. Moreover, compound (4) has equally exerted an attractive antibacterial activity against Staphylococcus aureus (ATTC-25923), Pseudomonas aeruginosa (ATTC- 27853) and Salmonella abony (NCTC 6017), as measured by the disc diffusion assay, with inhibition zones of 16 ± 0.5, 9.83 ± 0.29 and 8 ± 0.28 mm, in that order. To the best of our knowledge, 5-Hydroxy-1H-indole was isolated from plants for the second time in our current work. Thus, the obtained results from this investigation propose that the leaves of C. spinosa are a rich natural source for value molecules as potential antioxidants and antimicrobial agents for best human health.
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Affiliation(s)
- Radia Cherfia
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri, Constantine1, BP, 325 Route de Aïn El Bey, Constantine 25017, Algeria.
| | - Ali Zaiter
- Laboratoire de Chimie et Physique-Approche Multi-échelles des Milieux Complexes (LCP-A2MC), Université de Lorraine -METZ- France Boulevard Arago, Metz Technopole Cedex 03 F-57078, France
| | - Salah Akkal
- Laboratoire de Phytochimie et Analyses Physico-chimiques et Biologiques, Université des Frères Mentouri, Constantine 1, Route de Aïn El Bey, Constantine 25017, Algeria
| | - Patrick Chaimbault
- Laboratoire de Chimie et Physique-Approche Multi-échelles des Milieux Complexes (LCP-A2MC), Université de Lorraine -METZ- France Boulevard Arago, Metz Technopole Cedex 03 F-57078, France
| | - Ahmed Bakr Abdelwahab
- Laboratoire de Chimie et Physique-Approche Multi-échelles des Milieux Complexes (LCP-A2MC), Université de Lorraine -METZ- France Boulevard Arago, Metz Technopole Cedex 03 F-57078, France
| | - Gilbert Kirsch
- Laboratoire de Chimie et Physique-Approche Multi-échelles des Milieux Complexes (LCP-A2MC), Université de Lorraine -METZ- France Boulevard Arago, Metz Technopole Cedex 03 F-57078, France
| | - Noreddine Kacem Chaouche
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri, Constantine1, BP, 325 Route de Aïn El Bey, Constantine 25017, Algeria
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Yu D, Liang X. Characterization and Identification of Isoflavonoids in the Roots of Millettia speciosa Champ. by UPLC-Q-TOF-MS/MS. CURR PHARM ANAL 2019. [DOI: 10.2174/1573412914666180608095922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction:
The root of Millettia speciosa Champ. (Leguminosae) is one of the wellknown
traditional Chinese medicines abundant in phenolic compounds and plays important roles in the
treatment of pain or numbness of the joints, blood deficiency sallow, chronic bronchitis and chronic
hepatitis.
Objective:
An ultra-high performance liquid chromatography coupled with quadrupole time-of-flight
mass spectrometry (UPLC-Q-TOF-MS/MS) based chemical profiling approach was established for the
separation and characterization of isoflavonoids in the roots of Millettia speciosa Champ.
Methods:
The roots of Millettia speciosa Champ. were prepared by ethanol extraction followed by further
extraction with chloroform. The extracts were analyzed by UPLC-Q-TOF-MS in positive and negative
electrospray ion modes at different Collision Energy (CE) values.
Results:
A total of 48 components were simultaneously detected, of which 38 components, including 21
isoflavones, 4 phenolic acids, 4 isoflavanones, 2 phenolic aldehydes, 2 flavanones, 1 aliphatic acid, 1
chalcone, 1 flavonol, 1 isoflavane and 1 pterocarpan were unambiguously identified or tentatively assigned
based on the retention time, UV spectra, characteristic molecular ions, MS/MS fragmentation
data and reference standards. The isomers of isoflavonoids were distinguished using accurate mass, the
diagnostic fragmentations of C-ring and UV spectra. The major diagnostic fragment ions of isoflavonoids
were observed and the corresponding fragmentation pathways were proposed.
Conclusion:
This investigation provides important analysis data for further quality control, pharmacological
and toxicological research on Millettia speciosa Champ.
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Affiliation(s)
- Dandan Yu
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Xianrui Liang
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
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Falcão SI, Lopes M, Vilas-Boas M. A First Approach to the Chemical Composition and Antioxidant Potential of Guinea-Bissau Propolis. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19844138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Propolis is a natural product derived from plant resins collected by honeybees and used in the beehive as a construction and defensive material. The broad spectrum of biological activities is dependent on the chemical diversity of its composition which is determined by the floral sources at the site of collection. For the first time, the chemical composition of Guinean propolis as well as its physicochemical properties, phenolic composition, and antioxidant activity was assessed. Eight compounds were identified through LC/DAD/ESI-MS n , mostly isoflavonoids, resembling Nigerian and Brazilian red propolis from the genus Dalbergia.
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Affiliation(s)
- Soraia I. Falcão
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Mélissa Lopes
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Miguel Vilas-Boas
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
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19
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Wang F, Huang A, Yin X, Wang W, Chen J. Multilevel profiling and identification of Dalbergia odorifera and Dalbergia stevensonii by FTIR, NMR and GC/MS. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.11.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Addotey JN, Lengers I, Jose J, Gampe N, Béni S, Petereit F, Hensel A. Isoflavonoids with inhibiting effects on human hyaluronidase-1 and norneolignan clitorienolactone B from Ononis spinosa L. root extract. Fitoterapia 2018; 130:169-174. [PMID: 30176279 DOI: 10.1016/j.fitote.2018.08.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/22/2018] [Accepted: 08/22/2018] [Indexed: 11/18/2022]
Abstract
Human hyaluronidase-1 (Hyal-1) is one of the main enzymes in the homeostasis of hyaluronic acid (HA), the main polysaccharide of extracellular matrix. Development of specific Hyal-1 inhibitors might be a promising target for improved wound healing, tissue regeneration, and looking at renal function for diuresis. By using surface-displayed Hyal-1 on Escherichia coli F470 cells, HA as substrate and stains-all method for quantification of undegraded HA, the respective enzyme activity can be determined easily. Based on the traditional use of extracts from the roots from Ononis spinosa L. (Restharrow root) as a weak diuretic to achieve flushing of the urinary tract and as an adjuvant in minor urinary complaints the herbal material was selected for bioactivity guided fractionation for compounds with Hyal-1 inhibition activity. Hot water and hydroalcoholic extracts showed moderate inhibiting effects (IC50 1.36 resp. 0.73 mg/mL) while dichloromethane extract exerted an IC50 of 190 μg/mL. Bioassay guided fractionation of the dichloromethane extract yielded four isoflavonoids with anti Hyal-1 activity: onogenin 1, sativanone 2, medicarpin 3 and calycosin-D 4 with inhibition rates of 25.4, 61.2, 22.4 and 23.0%, respectively at test concentration level of 250 μM. The norneolignan clitorienolactone B 5, the first time described for the genus Ononis, was inactive. The IC50 of sativanone, the most active compound was determined with 1501 μM, which was better than that of the positive control glycyrrhizinic acid (177 μM). Thus, a possible explanation for diuretic properties of Ononis spinosa L. root extract may be postulated from the results so far obtained.
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Affiliation(s)
- John Nii Addotey
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany
| | - Isabelle Lengers
- University of Münster, Institute of Pharmaceutical and Medicinal Chemistry, Corrensstrasse 48, D-48149 Münster, Germany
| | - Joachim Jose
- University of Münster, Institute of Pharmaceutical and Medicinal Chemistry, Corrensstrasse 48, D-48149 Münster, Germany
| | - Nóra Gampe
- Semmelweis University, Department of Pharmacognosy, Üllői út 26, H - 1085 Budapest, Hungary
| | - Szabolcs Béni
- Semmelweis University, Department of Pharmacognosy, Üllői út 26, H - 1085 Budapest, Hungary
| | - Frank Petereit
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany
| | - Andreas Hensel
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany.
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Lin R, Duan J, Mu F, Bian H, Zhao M, Zhou M, Li Y, Wen A, Yang Y, Xi M. Cardioprotective effects and underlying mechanism of Radix Salvia miltiorrhiza and Lignum Dalbergia odorifera in a pig chronic myocardial ischemia model. Int J Mol Med 2018; 42:2628-2640. [PMID: 30226574 PMCID: PMC6192790 DOI: 10.3892/ijmm.2018.3844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 08/09/2018] [Indexed: 12/24/2022] Open
Abstract
Traditional Chinese medicines, including Radix Salvia miltiorrhiza (SM) and Lignum Dalbergia odorifera (DO) extracts, have historically been used to treat myocardial ischemia and other cardiovascular diseases. The volatile oil of DO (DOO) is one of the main components of DO. The aim of the present study was to assess the cardioprotective effects and possible underlying mechanisms of SM-DOO in pigs with ameroid constriction-induced chronic myocardial ischemia. An ameroid constrictor was placed around the left anterior descending coronary artery of pigs to induce chronic myocardial ischemia. At weeks 2, 6 and 8, myocardial injury markers and blood gas levels were detected. At week 8, coronary angiography, echocardiography and hemodynamics analysis were performed to evaluate myocardial function. Following sacrifice, myocardial tissue was collected and subjected to morphological, histopathological and apoptosis assays. Western blotting was used to detect the protein expression of Bcl-2 associated X (Bax), Bcl-2, Akt, phosphorylated (p)-Akt, glycogen synthase kinase (GSK)-3β and p-GSK-3β. It was revealed that SM-DOO treatment following chronic myocardial ischemia significantly downregulated the expression of myocardial injury markers, ameliorated myocardial oxygen consumption, increased collateralization, reduced regional cardiac dysfunction and limited the extent of myocardial damage. Furthermore, the results of an apoptosis assay revealed that the apoptosis rate was decreased, the expression of Bax decreased and Bcl-2 increased, and the ratio of Bcl-2/Bax was increased. Further experiments indicated that treatment with SM-DOO increased the phosphorylation of Akt and GSK-3β. These findings suggest that SM-DOO treatment ameliorates myocardial injury in a chronic myocardial ischemia model, and that the underlying mechanisms responsible may be associated with the activation of the Akt/GSK-3β signal pathway. Thus, experimental evidence that SM-DOO may be an effective drug for the prevention and treatment of chronic myocardial ischemia in clinical applications has been provided.
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Affiliation(s)
- Rui Lin
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jialin Duan
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fei Mu
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Haixu Bian
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Meina Zhao
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Min Zhou
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Yao Li
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Aidong Wen
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yong Yang
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Miaomiao Xi
- Department of Pharmacy, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Cai T, Guo ZQ, Xu XY, Wu ZJ. Recent (2000-2015) developments in the analysis of minor unknown natural products based on characteristic fragment information using LC-MS. MASS SPECTROMETRY REVIEWS 2018; 37:202-216. [PMID: 27341181 DOI: 10.1002/mas.21514] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
Liquid chromatography-Mass Spectrometry (LC-MS) has been widely used in natural product analysis. Global detection and identification of nontargeted components are desirable in natural product research, for example, in quality control of Chinese herbal medicine. Nontargeted components analysis continues to expand to exciting life science application domains such as metabonomics. With this background, the present review summarizes recent developments in the analysis of minor unknown natural products using LC-MS and mainly focuses on the determination of the molecular formulae, selection of precursor ions, and characteristic fragmentation patterns of the known compounds. This review consists of three parts. Firstly, the methods used to determine unique molecular formula of unknown compounds such as accurate mass measurements, MSn spectra, or relative isotopic abundance information, are introduced. Secondly, the methods improving signal-to-noise ratio of MS/MS spectra by manual-MS/MS or workflow targeting-only signals were elucidated; pure precursor ions can be selected by changing the precursor ion isolated window. Lastly, characteristic fragmentation patterns such as Retro-Diels-Alder (RDA), McLafferty rearrangements, "internal residue loss," and so on, occurring in the molecular ions of natural products are summarized. Classical application of characteristic fragmentation patterns in identifying unknown compounds in extracts and relevant fragmentation mechanisms are presented (RDA reactions occurring readily in the molecular ions of flavanones or isoflavanones, McLafferty-type fragmentation reactions of some natural products such as epipolythiodioxopiperazines; fragmentation by "internal residue loss" possibly involving ion-neutral complex intermediates). © 2016 Wiley Periodicals, Inc. Mass Spec Rev 37:202-216, 2018.
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Affiliation(s)
- Tian Cai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Ze-Qin Guo
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
- College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Xiao-Ying Xu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Zhi-Jun Wu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
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A Review on the Medicinal Plant Dalbergia odorifera Species: Phytochemistry and Biological Activity. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:7142370. [PMID: 29348771 PMCID: PMC5733943 DOI: 10.1155/2017/7142370] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 10/25/2017] [Indexed: 11/17/2022]
Abstract
The crucial medicinal plant Dalbergia odorifera T. Chen species belongs to genus Dalbergia, with interesting secondary metabolites, consisting of main classes of flavonoid, phenol, and sesquiterpene derivatives, as well as several arylbenzofurans, quinones, and fatty acids. Biological studies were carried out on extracts, fractions, and compounds from this species involved in cytotoxic assays; antibacterial, antioxidative, anti-inflammatory, antithrombotic, antiplatelet, antiosteosarcoma, antiosteoporosis, antiangiogenesis, and prostaglandin biosynthetic enzyme inhibition activities; vasorelaxant activities; alpha-glucosidase inhibitory activities; and many other effects. In terms of the valuable resources for natural new drugs development, D. odorifera species are widely used as medicinal drugs in many countries for treatment of cardiovascular diseases, cancer, diabetes, blood disorders, ischemia, swelling, necrosis, or rheumatic pain. Although natural products from this plant have been increasingly playing an important role in drug discovery programs, there is no supportive evidence to provide a general insight into phytochemical studies on D. odorifera species and biological activities of extracts, fractions, and isolated compounds. To a certain extent, this review deals with an overview of almost naturally occurring compounds from this species, along with extensive coverage of their biological evaluations.
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He L, Li C, Liu X, Yang Q, Zhang H, Xu W, Zhang L, Liu C. Comparative study on the interaction between 3 CYP2C9 allelic isoforms and benzbromarone by using LC–MS/MS method. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1070:97-103. [DOI: 10.1016/j.jchromb.2017.10.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/29/2017] [Accepted: 10/26/2017] [Indexed: 01/15/2023]
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Mohammed Abubakar B, Mohd Salleh F, Shamsir Omar MS, Wagiran A. Review: DNA Barcoding and Chromatography Fingerprints for the Authentication of Botanicals in Herbal Medicinal Products. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:1352948. [PMID: 28536641 PMCID: PMC5425840 DOI: 10.1155/2017/1352948] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 02/11/2017] [Accepted: 03/16/2017] [Indexed: 01/28/2023]
Abstract
In the last two decades, there has been a tremendous increase in the global use of herbal medicinal products (HMPs) due to their claimed health benefits. This has led to increase in their demand and consequently, also, resulted in massive adulteration. This is due to the fact that most of the traditional methods cannot identify closely related species in a process product form. Therefore the urgent need for simple and rapid identification methods resulted in the discovery of a novel technique. DNA barcoding is a process that uses short DNA sequence from the standard genome for species identification. This technique is reliable and is not affected by external factors such as climates, age, or plant part. The difficulties in isolation of DNA of high quality in addition to other factors are among the challenges encountered using the DNA barcoding in the authentication of HMP. These limitations indicated that using DNA barcoding alone may ineffectively authenticate the HMP. Therefore, the combination of DNA barcoding with chromatographic fingerprint, a popular and generally accepted technique for the assessment and quality control of HMP, will offer an efficient solution to effectively evaluate the authenticity and quality consistency of HMP. Detailed and quality information about the main composition of the HMPs will help to ascertain their efficacy and safety as these are very important for quality control.
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Affiliation(s)
- Bashir Mohammed Abubakar
- Department of Biotechnology & Medical Engineering, Faculty of Biosciences and Medical Engineering, UTM, 81310 Skudai, Johor, Malaysia
- Department of Biological Sciences, Bauchi State University Gadau, PMB 065, Bauchi, Nigeria
| | - Faezah Mohd Salleh
- Department of Biotechnology & Medical Engineering, Faculty of Biosciences and Medical Engineering, UTM, 81310 Skudai, Johor, Malaysia
| | - Mohd Shahir Shamsir Omar
- Department of Biosciences & Health Sciences, Faculty of Biosciences and Medical Engineering, UTM, 81310 Skudai, Johor, Malaysia
| | - Alina Wagiran
- Department of Biotechnology & Medical Engineering, Faculty of Biosciences and Medical Engineering, UTM, 81310 Skudai, Johor, Malaysia
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Zeng SL, Liu XG, Lai CJS, Liu EH, Li P. Diagnostic ion filtering strategy for chemical characterization of Guge Fengtong Tablet with high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry. Chin J Nat Med 2016; 13:390-400. [PMID: 25986289 DOI: 10.1016/s1875-5364(15)30031-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The present study was designed to characterize the chemical constituents of Guge Fengtong Tablet (GGFTT). Based on the chromatographic retention behavior, fragmentation pathways of chemical components and the published literatures, a diagnostic ion filtering strategy with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (HPLC-ESI-Q-TOF/MS) was established to identify the multiple bioactive constituents of GGFTT. The rapid identification of forty-seven components, including 18 phenolic acids, 8 saponins, 14 gingerol-related compounds, and 7 diarylhepatonoids, was accomplished using this newly developed method. The coupling of HPLC-ESI-Q-TOF/MS with the diagnostic ion filtering strategy was useful and efficient for the in-depth structural elucidation of chemical compounds of GGFTT.
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Affiliation(s)
- Su-Ling Zeng
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xin-Guang Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Chang-Jiang-Sheng Lai
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - E-Hu Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
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Hung HY, Wu TS. Recent progress on the traditional Chinese medicines that regulate the blood. J Food Drug Anal 2016; 24:221-238. [PMID: 28911575 PMCID: PMC9339571 DOI: 10.1016/j.jfda.2015.10.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 10/13/2015] [Accepted: 10/29/2015] [Indexed: 01/12/2023] Open
Abstract
In traditional Chinese medicine, the herbs that regulate blood play a vital role. Here, nine herbs including Typhae Pollen, Notoginseng Root, Common Bletilla Tuber, India Madder Root and Rhizome, Chinese Arborvitae Twig, Lignum Dalbergiae Oderiferae, Chuanxiong Rhizoma, Corydalis Tuber, and Motherwort Herb were selected and reviewed for their recent studies on anti-tumor, anti-inflammatory and cardiovascular effects. Besides, the analytical methods developed to qualify or quantify the active compounds of the herbs are also summarized.
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Affiliation(s)
- Hsin-Yi Hung
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
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Singh A, Kumar S, Bajpai V, Reddy TJ, Rameshkumar KB, Kumar B. Structural characterization of flavonoid C- and O-glycosides in an extract of Adhatoda vasica leaves by liquid chromatography with quadrupole time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:1095-106. [PMID: 25981540 DOI: 10.1002/rcm.7202] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 03/17/2015] [Accepted: 03/22/2015] [Indexed: 05/22/2023]
Abstract
RATIONALE Adhatoda vasica Nees is a well-known Ayurvedic medicinal plant, belonging to the family Acanthaceae. This study aims to seek identification and characterization of flavonoid C- and O-glycosides in the aqueous fraction of the plant leaves. METHODS A method was developed for simultaneous characterization of flavonoids and their glycosides using high-pressure liquid chromatography with quadrupole time-of-flight mass spectrometry (HPLC/ESI-QTOF-MS/MS). The chromatographic separation was carried on an Agilent Poroshell 120 EC-C18 column (4.6 × 150 mm, 2.7 µm) operated with 0.1% formic acid aqueous solution and methanol as the mobile phase. RESULTS The fragmentations of the studied [M-H](-) ions of C-glycosides were shown to be cross-ring cleavages of the glycoside moiety [M-H-(60/90/120)](-) whereas O-glycosides were shown to eliminate the sugar moiety (Y0 (-) or [Y0 -H](-) ) from the aglycone unit; 6-C-glycosides exhibited [M-H-18](-) , a characteristic ion, and also a higher abundance of (0,3) X6 or 8 ions in comparison to 8-C glycosides; flavonoid 6,8-di-C-glycosides exhibited cross-ring cleavages of the sugar attached to the C-6 position preferentially. CONCLUSIONS This method was successfully applied for analysis of flavonoids and their glycosides in Adhatoda vasica leaves. A total of 29 compounds were tentatively identified including 17 C-, nine O-glycosides and three flavonoids.
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Affiliation(s)
- Awantika Singh
- Sophisticated Analytical Instrument Facility Division, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Sunil Kumar
- Sophisticated Analytical Instrument Facility Division, CSIR - Central Drug Research Institute, Lucknow, 226031, India
| | - Vikas Bajpai
- Sophisticated Analytical Instrument Facility Division, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - T Jagadeshwar Reddy
- Sophisticated Analytical Instrument Facility Division, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - K B Rameshkumar
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram, 695562, Kerala, India
| | - Brijesh Kumar
- Sophisticated Analytical Instrument Facility Division, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
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Singh A, Kumar S, Reddy TJ, Rameshkumar KB, Kumar B. Screening of tricyclic quinazoline alkaloids in the alkaloidal fraction of Adhatoda beddomei and Adhatoda vasica leaves by high-performance liquid chromatography/electrospray ionization quadrupole time-of-flight tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:485-496. [PMID: 26160414 DOI: 10.1002/rcm.7126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 12/09/2014] [Accepted: 12/14/2014] [Indexed: 06/04/2023]
Abstract
RATIONALE Adhatoda beddomei and Adhatoda vasica are popular Ayurvedic medicinal plants in India, belonging to the family Acanthaceae. Tricyclic quinazoline alkaloids are found to be the most abundant in these plants which are responsible for broad-spectrum medicinal properties. This study aims to seek identification and characterization of those alkaloids based on their fragmentation patterns. METHODS A method was developed to elucidate the main fragmentation pathways of tricyclic quinazoline alkaloids in positive ion mode using high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (HPLC/ESI-QTOF-MS/MS). Chromatographic separation was carried on a Supelco Discovery HS C18 column (15 cm × 4.6 mm, 3 µm) with 0.1% formic acid aqueous solution and acetonitrile as a mobile phase. RESULTS In full scan mass spectra, protonated molecules were observed for all the quinazoline alkaloids. Ring cleavages of the tricyclic quinazoline moiety were observed in MS(2) spectra and the characteristic ions provide valuable structural information of these alkaloids. Fragmentation pathways and fragment ion structures were proposed in two groups of quinazoline alkaloids. CONCLUSIONS The established fragmentation patterns have been successfully used to identify 23 tricyclic quinazoline alkaloids in the alkaloidal fraction of A. beddomei and A. vasica.
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Affiliation(s)
- Awantika Singh
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi-110025, India
| | - Sunil Kumar
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
| | - T Jagadeshwar Reddy
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi-110025, India
| | - K B Rameshkumar
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute Palode, Thiruvananthapuram-695562, Kerala, India
| | - Brijesh Kumar
- Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi-110025, India
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Su XQ, Song YL, Zhang J, Huo HX, Huang Z, Zheng J, Zhang Q, Zhao YF, Xiao W, Li J, Tu PF. Dihydrochalcones and homoisoflavanes from the red resin of Dracaena cochinchinensis (Chinese dragon's blood). Fitoterapia 2014; 99:64-71. [DOI: 10.1016/j.fitote.2014.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 10/24/2022]
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Possible Evidence of Contamination by Catechins in Deconjugation Enzymes fromHelix pomatiaandAbalone entrails. Biosci Biotechnol Biochem 2014; 75:1506-10. [DOI: 10.1271/bbb.110210] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yuan L, Jia P, Sun Y, Zhao C, Zhi X, Sheng N, Zhang L. Study of in vitro metabolism of m-nisoldipine in human liver microsomes and recombinant cytochrome P450 enzymes by liquid chromatography-mass spectrometry. J Pharm Biomed Anal 2014; 97:65-71. [PMID: 24816159 DOI: 10.1016/j.jpba.2014.03.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 03/17/2014] [Accepted: 03/20/2014] [Indexed: 10/25/2022]
Abstract
This is a report about the investigation of the metabolic fate of m-nisoldipine in human liver microsomes and the recombinant cytochrome P450 enzymes by using LC-MS/MS. A sensitive and reliable LC-MS/MS method was developed to obtain a rapid and complete characterization of new metabolites and the metabolism pathways. The analytes were separated on a reversed phase C18 column with acetonitrile and 0.1% aqueous formic acid as the mobile phase. Tandem mass spectrometry with positive electrospray ionization was used to enable the structural characterization of the metabolites. A total of 10 metabolites were characterized with proposed structures in the incubation of human liver microsomes by comparing their retention times and spectral patterns with those of the parent drug. Dehydrogenation of the dihydropyridine core and reactions of side chains such as hydroxylation and hydrolysis of ester bonds were the major metabolic pathways. The specific cytochrome P450 (CYP) enzymes responsible for m-nisoldipine metabolites were identified using chemical inhibition and cDNA expressed CYP enzymes. The results indicated that CYP2C19 and CYP3A4 might play major roles in the metabolism of m-nisoldipine in human liver microsomes.
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Affiliation(s)
- Lin Yuan
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China
| | - Peipei Jia
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China
| | - Yupeng Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China
| | - Chengcheng Zhao
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China
| | - Xuran Zhi
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China
| | - Ning Sheng
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China
| | - Lantong Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang, PR China.
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Screening and determination for potentialα-glucosidase inhibitory constituents fromDalbergia odoriferaT. Chen using ultrafiltration-LC/ESI-MSn. Biomed Chromatogr 2013; 27:1621-9. [DOI: 10.1002/bmc.2970] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 05/21/2013] [Accepted: 05/21/2013] [Indexed: 11/07/2022]
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Tchoumtchoua J, Njamen D, Mbanya JC, Skaltsounis AL, Halabalaki M. Structure-oriented UHPLC-LTQ Orbitrap-based approach as a dereplication strategy for the identification of isoflavonoids from Amphimas pterocarpoides crude extract. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:561-575. [PMID: 23674281 DOI: 10.1002/jms.3167] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 12/20/2012] [Accepted: 01/07/2013] [Indexed: 06/02/2023]
Abstract
Hyphenated techniques and especially ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) are nowadays widely employed in natural products research. However, the complex nature of plant extracts complicates considerably the analysis and the identification of their constituents. Nevertheless, new MS analyzers with increased resolving power and accuracy such as the orbital trap (Orbitrap) could facilitate drastically this process. The objective of this study is the development of a new structure-oriented approach based on fast UHPLC-high-resolution (HR)MS and HRMS/MS methodologies for the identification of isoflavonoids in crude extracts. In addition, aims to assist dereplication procedures, to decrease the laborious isolation steps and orient the focused isolation of compounds of interest. As a proof of concept, the methanol extract of the stem bark of Amphimas pterocarpoides (Leguminosae) was selected. Based on chromatographic (retention time, polarity) and spectrometric features (ultraviolet spectra, accurate m/z, proposed elemental composition, ring double bond equivalent, and relative isotopic abundance) as well as HRMS/MS spectra, several isoflavonoids were identified. In order to verify the proposed structures, 11 isoflavonoids were selectively isolated and unambiguously identified using 1&2D nuclear magnetic resonance techniques. Moreover, the isolated isoflavonoids were studied in HRMS/MS level, employing electrospray ionization and atmospheric pressure chemical ionization sources, in both modes. Useful information regarding their fragmentation patterns was obtained, and characteristic diagnostic ions were defined for the identification of methoxylated isoflavones, dihydroisoflavones and 5-hydroxylated isoflavonoids. Based on the current results, the proposed dereplication strategy was verified and could comprise a novel approach for the analysis of crude extracts in the future not only for isoflavonoids but also for other chemical classes of natural products.
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Affiliation(s)
- Job Tchoumtchoua
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimioupoli Zografou, 15771, Athens, Greece
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Yang WZ, Ye G, Meng AH, Sabir G, Qiao X, Guo DA, Ye M. Rapid characterisation of flavonoids fromSophora alopecuroidesL. by HPLC/DAD/ESI-MSn. Nat Prod Res 2013; 27:323-30. [DOI: 10.1080/14786419.2012.688052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rapid and comprehensive evaluation of (poly)phenolic compounds in pomegranate (Punica granatum L.) juice by UHPLC-MSn. Molecules 2012; 17:14821-40. [PMID: 23519255 PMCID: PMC6268091 DOI: 10.3390/molecules171214821] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 12/07/2012] [Accepted: 12/10/2012] [Indexed: 01/13/2023] Open
Abstract
The comprehensive identification of phenolic compounds in food and beverages is a crucial starting point for assessing their biological, nutritional, and technological properties. Pomegranate (Punica granatum L.) has been described as a rich source of (poly)phenolic components, with a broad array of different structures (phenolic acids, flavonoids, and hydrolyzable tannins) and a quick, high throughput, and accurate screening of its complete profile is still lacking. In the present work, a method for UHPLC separation and linear ion trap mass spectrometric (MSn) characterization of pomegranate juice phenolic fraction was optimized by comparing several different analytical conditions. The best solutions for phenolic acids, anthocyanins, flavonoids, and ellagitannins have been delineated and more than 70 compounds have been identified and fully characterized in less than one hour total analysis time. Twenty-one compounds were tentatively detected for the first time in pomegranate juice. The proposed fingerprinting approach could be easily translated to other plant derived food extracts and beverages containing a wide array of phytochemical compounds.
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Yang WZ, Ye M, Qiao X, Wang Q, Bo T, Guo DA. Collision-induced dissociation of 40 flavonoid aglycones and differentiation of the common flavonoid subtypes using electrospray ionization ion-trap tandem mass spectrometry and quadrupole time-of-flight mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2012; 18:493-503. [PMID: 23654194 DOI: 10.1255/ejms.1206] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Much Literature is available with respect to the collision-induced dissociation (CID) of different subtypes of flavonoid aglycones. However, a simultaneous comparison study of the common flavonoid subtypes under unified conditions is rarely reported, which is of crucial significance for their rapid structural elucidation. This study depicted the negative CID of 40 free flavonoids (comprising nine different subtypes) utilizing electrospray ionization ion-trap tandem mass spectrometry (ESI-IT-MSn). High-accuracy quadrupole time-of-flight mass spectrometry was employed to confirm the chemical formula of proposed key fragments. Specific fragmentation features were discovered among different flavonoid subtypes in terms of the essential collision energy, base peak, RDA fragmentation, and diversity of fragmentation pathways: CID of flavanones, chalcones and flavanonols was in need of lower Levels of collision energy [<40%) and exhibited simplified fragmentation pathways; overriding neutral loss of CO2 was detected for flavones, aurones and xanthones, while isoflavones preferred neutral loss of CO; 1,2A- and 1,3A- fragments were respectively dominant for flavonols and flavanones/chalcones, white homoisoflavones underwent specific radical elimination of ring B or methylene-ring B. These differentiated fragmentation characteristics integrating UV absorption resulted in the establishment of a decision tree to characterize and distinguish the common flavonoid subtypes. This study firstly revealed remarkable differentiations in the negative CID behavior of nine common flavonoid aglycone subtypes and the proposed determination strategy would much benefit the screening and rapid characterization of flavonoids from complicated matrixes by tandem mass spectrometry.
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Affiliation(s)
- Wen-Zhi Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
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Righi AA, Alves TR, Negri G, Marques LM, Breyer H, Salatino A. Brazilian red propolis: unreported substances, antioxidant and antimicrobial activities. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2011; 91:2363-70. [PMID: 21590778 DOI: 10.1002/jsfa.4468] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 03/18/2011] [Accepted: 04/09/2011] [Indexed: 05/10/2023]
Abstract
BACKGROUND Chloroform, ethyl acetate and methanol extracts of a sample of red propolis from the state of Alagoas (northeast Brazil) were analyzed by gas chromatography-mass spectrometry and high-performance liquid chromatography-diode array detection-electrospray ionization-mass spectrometry. Antimicrobial and antioxidant activities were also obtained. RESULTS The propolis sample contained low content of narigenin-8-C-hexoside, this being the first report of a C-glycoside in propolis. The main constituent found was characterized as 3,4,2',3'-tetrahydroxychalcone. Other important constituents were the chalcone isoliquiritigenin, the isoflavans (3S)-vestitol, (3S)-7-O-methylvestitol, the pterocarpan medicarpin, the phenylpropenes trans-anethol, methyl eugenol, elimicin, methoxyeugenol and cis-asarone, and the triterpenic alcohols lupeol and α- and β- amyrins. The methanol extract exhibited high antioxidant activities by 2,2-diphenyl-1-picrylhydrazyl and β-carotene/linoleic acid assay methods, and antimicrobial activity toward Gram-positive and Gram-negative bacteria. CONCLUSION Structures are suggested for new substances never before seen in any kind of propolis. This is the first report of 3,4,2',3'-tetrahydroxychalcone and a flavone C-glycoside in a propolis sample.
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Affiliation(s)
- Adne A Righi
- Institute of Biosciences, Botany Department, University of São Paulo, São Paulo, SP, Brazil.
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Arman M. LC-ESI-MS characterisation of phytoalexins induced in chickpea and pea tissues in response to a biotic elicitor of Hypnea musciformis (red algae). Nat Prod Res 2011; 25:1352-60. [PMID: 21859260 DOI: 10.1080/14786419.2011.553952] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A simple extraction procedure and HPLC method was developed to analyse the major and minor components of induced phytoalexins of elicited tissues (seeds) of chickpeas (Cicer arietinum L.) and peas (Pisum sativum L.) treated with a biotic elicitor (k-carrageenan) of Hypnea musciformis (red algae) from the Karachi coast. The level and timing of the induced phytoalexin production were estimated on the basis of various elicitor dilutions and as a function of time; the results are presented and discussed. A LC-ESI-MS/MS technique has been employed for the detection and characterisation of the induced phytochemical components (flavonoids and their glyco-conjugates). Nine flavonoids were identified from chickpeas: naringin, naringin malonate, liquiritigenin, naringenin, biochanin A, daidzein, formononetin, maackiain and medicarpin, while five flavonoids were identified from peas: afrormosin, anhydropisatin, pisatin, pseudobaptigenin and maackiain. These compounds play a vital role as phytoalexins because of their antimicrobial activity.
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Affiliation(s)
- Muhammad Arman
- PCSIR Laboratories Complex Karachi, Sharah-e-Dr Salimuzzaman Siddiqui , Off University Road , Karachi -75280 , Pakistan.
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Xu L, Shi H, Liang T, Feng J, Jin Y, Ke Y, Liang X. Selective separation of flavonoid glycosides in Dalbergia odorifera by matrix solid-phase dispersion using titania. J Sep Sci 2011; 34:1347-54. [DOI: 10.1002/jssc.201100024] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 03/08/2011] [Accepted: 03/08/2011] [Indexed: 11/11/2022]
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Identification of flavonoids in the stems and leaves of Scutellaria baicalensis Georgi. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1023-8. [PMID: 21435957 DOI: 10.1016/j.jchromb.2011.02.050] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Revised: 02/28/2011] [Accepted: 02/28/2011] [Indexed: 11/23/2022]
Abstract
Scutellaria baicalensis Georgi (S. baicalensis), a perennial herb of the Labiatae family, is a well-known traditional Chinese medicine. In the present study, a comprehensive qualitative analysis of flavonoids in the stems and leaves of S. baicalensis was performed. Under the optimized experimental conditions, 21 flavonoids were clearly detected. 17 of them were successfully identified based on the on-line UV and MS(n) data and were sequentially confirmed by the literature search. The rest 4 flavonones, which were not on-line identified, were successfully isolated and were identified by 1D and 2D NMR. One of them, 5,6,7,3',4'-pentahydroxy flavanone-7-O-glucuronide (2) is a new compound.
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Qiao X, Han J, Xu M, Zhang ZC, Ye M, Ye G, Guo DA. Metabolic profiling of GuanXin II prescription based on metabolic fingerprinting and chemical analysis. J Pharm Biomed Anal 2011; 54:789-98. [DOI: 10.1016/j.jpba.2010.10.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Revised: 09/26/2010] [Accepted: 10/21/2010] [Indexed: 02/08/2023]
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van der Hooft JJJ, Vervoort J, Bino RJ, Beekwilder J, de Vos RCH. Polyphenol identification based on systematic and robust high-resolution accurate mass spectrometry fragmentation. Anal Chem 2010; 83:409-16. [PMID: 21141940 DOI: 10.1021/ac102546x] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
High-mass resolution multi-stage mass spectrometry (MS(n)) fragmentation was tested for differentiation and identification of metabolites, using a series of 121 polyphenolic molecules. The MS(n) fragmentation approach is based on the systematic breakdown of compounds, forming a so-called spectral tree. A chip-based nanoelectrospray ionization source was used combined with an ion-trap, providing reproducible fragmentation, and accurate mass read-out in an Orbitrap Fourier transform (FT) MS enabling rapid assignment of elemental formulas to the molecular ions and all fragment ions derived thereof. The used protocol resulted in reproducible MS(n) fragmentation trees up to MS(5). Obtained results were stable over a 5 month time period, a concentration change of 100-fold, and small changes in normalized collision energy, which is key to metabolite annotation and helpful in structure and substructure elucidation. Differences in the hydroxylation and methoxylation patterns of polyphenolic core structures were found to be reflected by the differential fragmentation of the entire molecule, while variation in a glycosylation site displayed reproducible differences in the relative intensities of fragments originating from the same aglycone fragment ion. Accurate MS(n)-based spectral tree data are therefore a powerful tool to distinguish metabolites with similar elemental formula, thereby assisting compound identification in complex biological samples such as crude plant extracts.
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Affiliation(s)
- Justin J J van der Hooft
- Laboratory of Biochemistry, Wageningen University, Dreijenlaan 3, 6703 HA, Wageningen, The Netherlands.
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Mass Spectrometry as a Powerful Analytical Technique for the Structural Characterization of Synthesized and Natural Products. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/978-90-481-9815-3_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Qi J, Xu D, Zhou YF, Qin MJ, Yu BY. New features on the fragmentation patterns of homoisoflavonoids in Ophiopogon japonicus by high-performance liquid chromatography/diode-array detection/electrospray ionization with multi-stage tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2010; 24:2193-206. [PMID: 20583326 DOI: 10.1002/rcm.4608] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Homoisoflavonoids, a special class of flavonoids, are mainly distributed in the Liliaceae family and have various biological activities. Previously, very little research has been reported on the gas-phase fragmentation patterns of homoisoflavonoids by electrospray ionization mass spectrometry. In this paper, we report the use of high-performance liquid chromatography with a diode-array detector (HPLC-DAD) and electrospray ionization multi-stage tandem mass spectrometry (ESI-MS(n)) to study the fragmentation behavior of 11 homoisoflavonoid standards and to analyze homoisoflavonoids in Ophiopogon japonicus. In total, 28 homoisoflavonoids (including seven novel constituents) were characterized. The deprotonated [M--H](-) molecules of the homoisoflavonoids containing a saturated C2--C3 bond afforded the A or B product ion (base peak) according to whether the B-ring was substituted with a hydroxyl group. For the homoisoflavonoids containing a C-2-C-3 double bond, the product ions (A or C ion) were created from the precursor [M-H](-) ion as the base peak when the B-ring was substituted with a hydroxyl group. The homoisoflavonoids carrying a formyl group in the A-ring readily eliminated one molecule of CO to form the product ion [M + H-CO](-) (base peak) irrespective whether the C-2-C-3 bond was saturated or not. This product ion afforded the [M-H-CO-B-ring--CH(2) + H](-) ion by cleavage of the C3-C9 bond. This latter product ion always appeared in tandem mass (MS/MS) spectra of type I homoisoflavonoids. The common features of flavonoids observed during the gas-phase fragmentation mechanisms were the loss of the following groups: 15 Da (CH(3)), 18 Da (H(2)O), 28 Da (CO), 44 Da (CO(2)) and 46 Da (CH(2)O(2)). A retro-Diels-Alder (RDA)-like cleavage was also observed for the homoisoflavonoids. The different gas-phase fragmentation routes were characterized for the deprotonated molecules obtained from the various homoisoflavonoids and collision-induced dissociation (CID) fragmentation differences were noted for the different locations of the various substituents. In conclusion, we can say that this study allowed us to structurally elucidate and identify homoisoflavonoids distributed in related plants and their complex prescriptions.
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Affiliation(s)
- Jin Qi
- Department of Complex Prescriptions of TCM, China Pharmaceutical University, Nanjing 210009, PR China
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Wang J, Wei N, Zhao H, Huang H, Jiang M, Bai G, Luo G. Global Chemome Study by LC Coupled with DAD and ESI–Q–TOF MS of a Composite Traditional Chinese Medicine Qishenyiqi Dropping Pills. Chromatographia 2010. [DOI: 10.1365/s10337-010-1677-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Kite GC, Green PWC, Veitch NC, Groves MC, Gasson PE, Simmonds MSJ. Dalnigrin, a neoflavonoid marker for the identification of Brazilian rosewood (Dalbergia nigra) in CITES enforcement. PHYTOCHEMISTRY 2010; 71:1122-1131. [PMID: 20457458 DOI: 10.1016/j.phytochem.2010.04.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 04/12/2010] [Accepted: 04/12/2010] [Indexed: 05/29/2023]
Abstract
International trade in Brazilian rosewood, Dalbergia nigra (Vell.) Allemão ex Benth., is regulated by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). One problem in enforcing these regulations is the difficulty in distinguishing the wood of D. nigra from that of a closely-related but unregulated species, Dalbergia spruceana Benth. Using LC-MS to analyse methanol extracts of xylaria specimens, we identified a chemical marker for D. nigra heartwood, and determined its structure as the neoflavonoid 6-hydroxy-7-methoxy-4-(4-methoxyphenyl)-2H-1-benzopyran-2-one (4'-O-methylmelanettin; dalnigrin), using spectroscopic techniques. Dalnigrin was present in all nine available heartwood specimens of D. nigra, but it was not detected in extracts of 59 other heartwood samples representing 15 species of Dalbergia, including D. spruceana. Five other phenolic compounds were also isolated from D. nigra heartwood and similarly identified as the neoflavonoids 3'-hydroxymelanettin, melanettin, melannein and dalbergin, and the isoflavone caviunin. In extracts of D. spruceana heartwood, pseudobaptigenin was identified by LC-MS to be a major phenolic component that was not detected in wood extracts of D. nigra. We conclude that chemical analysis, in combination with anatomical investigation, can provide persuasive evidence to support the positive identification of untreated heartwood of D. nigra.
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Zhao Y, Guo Z, Zhang X, Liang X, Zhang Y. Off-line 2-D RPLC/RPLC method for separation of components in Dalbergia odorifera T. Chen. J Sep Sci 2010; 33:1224-30. [DOI: 10.1002/jssc.200900778] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lotti C, Campo Fernandez M, Piccinelli AL, Cuesta-Rubio O, Márquez Hernández I, Rastrelli L. Chemical constituents of red Mexican propolis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:2209-13. [PMID: 20121106 DOI: 10.1021/jf100070w] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Chemical investigation of a red-type Mexican propolis sample has led to the isolation of three new compounds, 1-(3',4'-dihydroxy-2'-methoxyphenyl)-3-(phenyl)propane (1), (Z)-1-(2'-methoxy-4',5'-dihydroxyphenyl)-2-(3-phenyl)propene (2) and 3-hydroxy-5,6-dimethoxyflavan (3), together with seven known flavanones, isoflavans, and pterocarpans. Structural determination, was accomplished by spectroscopic analysis, particularly 2D NMR and ESI-MS/MS techniques. The present study appears to be the first report on the occurrence of isoflavonoids in Mexican propolis. In addition, the presence of compounds with a 1,3-diarylpropane and 1,3-diarylpropene carbon skeleton were found for the first time in propolis. Isolated compounds 1-10 indicated the possible relation between red Mexican propolis and the genus Dalbergia.
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Affiliation(s)
- Cinzia Lotti
- Dipartimento di Scienze Farmaceutiche, University of Salerno, Via Ponte Don Melillo, 84084 Fisciano, Salerno, Italy
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Raju B, Ramesh V, Sudhakar A, Ramesh M, Sarma VUM, Chandrasekhar S, Srinivas R. Diastereomeric differentiation of norbornene amino acid peptides by electrospray ionization tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2009; 23:2965-2974. [PMID: 19681066 DOI: 10.1002/rcm.4211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A new class of diastereomeric pairs of non-natural amino acid peptides derived from butyloxycarbonyl (Boc-)protected cis-(2S,3R)- and trans-(2S,3S)-beta-norbornene amino acids including a monomeric pair have been investigated by electrospray ionization (ESI) tandem mass spectrometry using quadrupole time-of-flight (Q-TOF) and ion-trap mass spectrometers. The protonated cis-BocN-beta-nbaa (2S,3R) (1) (betanbaa = beta-norbornene amino acid) eliminates the Boc group to form [M+H-Boc+H](+), whereas an additional ion [M+H-C(4)H(8)](+) is formed from trans-BocN-beta-nbaa (2S,3S) (2). Similarly, it is observed that the peptide diastereomers (di-, tri- and tetra-), with cis-BocN-beta-nbaa (2S,3R)- at the N-terminus, initially eliminate the Boc group to form [M+H-Boc+H](+) which undergo further fragmentation to give a set of product ions that are different for the peptides with trans-BocN-beta-nbaa (2S,3S)- at the N-terminus. Thus the Boc group fragments differently depending on the configuration of the amino acid present at the N-terminus. It is also observed that the peptide bond cleavage in these peptides is less favoured and most of the product ions are formed due to retro-Diels-Alder fragmentation. Interestingly, sodium-cationized peptide diastereomers mainly yield a series of retro-Diels-Alder fragment ions which are different for each diastereomer as they are formed starting from [M+Na-Boc+H](+) in peptides with cis-BocN-beta-nbaa (2S,3R)- at the N-terminus, and [M+Na-C(4)H(8)](+) in peptides with trans-BocN-beta-nbaa (2S,3S)- at the N-terminus. All these results clearly indicate that these diastereomeric pairs of peptides yield characteristic product ions which help distinguish the isomers.
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Affiliation(s)
- B Raju
- National Centre for Mass Spectrometry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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