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Pang HQ, Guo JX, Yang Y, Xu L, Wang J, Yang F, Xu ZB, Huang YF, Shi W, Lu X, Ibrahim MEH, Hu WC, Yan BC, Liu L. Elucidating the chemical interaction effects of herb pair Danshen-Chuanxiong and its anti-ischemic stroke activities evaluation. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:117058. [PMID: 37597675 DOI: 10.1016/j.jep.2023.117058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 08/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvia miltiorrhiza Bunge (Danshen) and Ligusticum chuanxiong Hort. (Chuanxiong) is the core herb pair in traditional Chinese medicines (TCMs) formulae for treating ischemic stroke. However, the synergistic effect of Danshen-Chuanxiong against anti-ischemic stroke and its compatibility mechanism remains unclear. AIM OF THE STUDY This study aimed to uncover the compatibility mechanism of Danshen-Chuanxiong against ischemic stroke through chemical profiling, pharmacodynamics evaluation, network pharmacology and experimental validation. MATERIALS AND METHODS Ultra-high performance liquid chromatography (UHPLC) combined with quadrupole time-of-flight tandem mass spectrometry (QTOF-MS) and UHPLC connected with tandem triple quadrupole mass spectrometry (QQQ-MS) were utilized to conduct the chemical interaction analysis. Then the synergistic effects of Danshen-Chuanxiong against ischemic stroke were comprehensively evaluated by the middle cerebral artery occlusion reperfusion (MCAO/R) mice model, zebrafish ischemic stroke model and glutamic acid-induced PC12 cells injury model. Afterwards, network pharmacology and molecular docking were applied to dissect the significant active compounds and potential mechanisms. Finally, the key target proteins were experimentally validated by Western blot. RESULTS 83 compounds were characterized in Danshen-Chuanxiong by UHPLC-QTOF-MS analysis, and 4 compounds were tentatively identified for the first time. The quantification results (24 accurately identified compounds) in 13 proportions of Danshen-Chuanxiong revealed that Danshen significantly increased the dissolution of most phthalides (from Chuanxiong), while Chuanxiong facilitated the dissolution of most phenolic acids (from Danshen) in solution. The anti-ischemic stroke effects of Danshen-Chuanxiong were significantly better than Danshen or Chuanxiong in attenuating infarct size, reducing brain edema and neurological scores in MCAO/R mice. Also, compared with single herbs, this herb pair exerted better effects of suppressing the incidence of cerebral thrombosis in zebrafish, and increasing the cell viability of glutamic acid-induced PC12 cells. In network pharmacology, 7 effective compounds (rosmarinic acid, chlorogenic acid, salvianolic acid B, (Z)-ligustilide, ferulic acid, caffeic acid, tanshinone IIA) and 5 hub targets (AKT, TNF-α, IL-1β, CASP3 and BCL2) as well as 4 key pathways were predicted. Western blot results showed that Danshen-Chuanxiong exert therapeutic effects mainly through decreasing the protein expressions of TNF-α, IL-1β and Cleaved-CASP3, elevating the levels of p-AKT and BCL2. CONCLUSIONS This work provided an integration strategy for uncovering the synergistic effects and compatibility mechanism of Danshen-Chuanxiong herb pair for treating ischemic stroke, and laid foundation for the further development and utilization of this herb pair.
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Affiliation(s)
- Han-Qing Pang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China; State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guiling, 541000, China.
| | - Jia-Xiu Guo
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Yang Yang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China; Guangling College, Yangzhou University, Yangzhou, 225000, China.
| | - Li Xu
- Yangzhou Food and Drug Inspection and Testing Center, Yangzhou, 225000, China.
| | - Jian Wang
- Yangzhou Food and Drug Inspection and Testing Center, Yangzhou, 225000, China.
| | - Fan Yang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Zhuo-Bing Xu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Yu-Fan Huang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Wei Shi
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guiling, 541000, China.
| | - Xin Lu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Muhi Eldeen Hussien Ibrahim
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Wei-Chen Hu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Bing-Chun Yan
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
| | - Liang Liu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
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Lux PE, Freiling M, Stuetz W, von Tucher S, Carle R, Steingass CB, Frank J. (Poly)phenols, Carotenoids, and Tocochromanols in Corn ( Zea mays L.) Kernels As Affected by Phosphate Fertilization and Sowing Time. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:612-622. [PMID: 31903750 DOI: 10.1021/acs.jafc.9b07009] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Corn (Zea mays L.) growth and development is often limited by the availability of phosphate. We thus hypothesized that phosphate fertilization may increase the contents of (poly)phenols, carotenoids, and tocochromanols (vitamin E) in corn grains. Corn plants cultivated on a soil fertilized with 44 kg phosphorus/ha were compared to plants grown on soil with low plant-available phosphate (1.6 mg CAL-P/100 g of soil), each sown early (April) and late (May) in a randomized field experiment. HPLC-DAD-(HR)-ESI-MSn revealed 19 soluble and 10 insoluble (poly)phenols, comprising phenolic acids, phenolic amines, diferulic, and triferulic acids in corn grains. Contents of individual (poly)phenols, carotenoids, and tocochromanols in whole grains were significantly (p < 0.05) increased by sowing time, but not by phosphate fertilization. In conclusion, low phosphate availability did not impair the biosynthesis of (poly)phenols, carotenoids, and tocochromanols in corn grains.
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Affiliation(s)
- Peter E Lux
- Institute of Nutritional Sciences, Chair of Food Biofunctionality , University of Hohenheim , Garbenstrasse 28 , 70599 Stuttgart , Germany
| | - Markus Freiling
- Department of Plant Sciences, Chair of Plant Nutrition , Technical University of Munich , Emil-Ramann-Strasse 2 , 85354 Freising , Germany
| | - Wolfgang Stuetz
- Institute of Nutritional Sciences, Chair of Food Biofunctionality , University of Hohenheim , Garbenstrasse 28 , 70599 Stuttgart , Germany
| | - Sabine von Tucher
- Department of Plant Sciences, Chair of Plant Nutrition , Technical University of Munich , Emil-Ramann-Strasse 2 , 85354 Freising , Germany
| | - Reinhold Carle
- Institute of Food Science and Biotechnology, Chair Plant Foodstuff Technology and Analysis , University of Hohenheim , Garbenstrasse 25 , 70599 Stuttgart , Germany
- Biological Science Department, Faculty of Science , King Abdulaziz University , P.O. Box 80257, Jeddah 21589 , Saudi Arabia
| | - Christof B Steingass
- Institute of Food Science and Biotechnology, Chair Plant Foodstuff Technology and Analysis , University of Hohenheim , Garbenstrasse 25 , 70599 Stuttgart , Germany
- Department of Beverage Research, Chair Analysis & Technology of Plant-Based Foods , Geisenheim University , Von-Lade-Strasse 1 , 65366 Geisenheim , Germany
| | - Jan Frank
- Institute of Nutritional Sciences, Chair of Food Biofunctionality , University of Hohenheim , Garbenstrasse 28 , 70599 Stuttgart , Germany
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Lapierre C, Voxeur A, Boutet S, Ralph J. Arabinose Conjugates Diagnostic of Ferulate-Ferulate and Ferulate-Monolignol Cross-Coupling Are Released by Mild Acidolysis of Grass Cell Walls. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12962-12971. [PMID: 31644281 DOI: 10.1021/acs.jafc.9b05840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Ferulate (FA) units esterified to grass arabinoxylans are involved in cross-linking cell wall polymers. In this work, this contention is strengthened by the identification of FA homo- and heterodimers esterified to methyl arabinofuranoside (MeAra) units after their release from the xylan by mild acidolysis in dioxane/methanol/HCl. Acidolysis of poorly lignified maize bran cell walls provided diferulate (DFA) isomers, including those from 8-5, 8-O-4, and 5-5 interunit bonding, esterified to one or two MeAra units. Acidolysis of lignified grass samples released crossed dimers esterified to one MeAra unit and derived from the β-O-4 coupling of coniferyl alcohol to FA esters. The evaluation of these heterodimeric esters by LC-UV of their aglycones revealed that the parent structures occur in significant amounts in lignified cell walls (0.5-1 mg/g expressed as FA equivalents). The present results position mild acidolysis as an efficient strategy to obtain improved details regarding the FA-mediated cross-linking of grass cell walls.
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Affiliation(s)
- Catherine Lapierre
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS , Université Paris-Saclay , Versailles 75231 , France
| | - Aline Voxeur
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS , Université Paris-Saclay , Versailles 75231 , France
| | - Stéphanie Boutet
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS , Université Paris-Saclay , Versailles 75231 , France
| | - John Ralph
- Department of Biochemistry, and The Department of Energy's Great Lakes Bioenergy Research Center, The Wisconsin Energy Institute , University of Wisconsin , Madison , Wisconsin 53726 , United States
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Waterstraat M, Bunzel M. A stable isotope dilution approach to analyze ferulic acid oligomers in plant cell walls using liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2019; 411:5047-5062. [PMID: 31172238 DOI: 10.1007/s00216-019-01924-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/26/2019] [Accepted: 05/15/2019] [Indexed: 11/27/2022]
Abstract
Diferulic (DFA) and triferulic acids (TriFA) acylate and cross-link plant cell wall polysaccharides, thereby being important structural elements within the cell wall, also affecting physicochemical properties of the isolated polysaccharides. Due to the large number of potential regio- and configurational isomers and due to the fact that oligoferulic acids are not commercially available as standard compounds, analysis of oligoferulic acids after alkaline hydrolysis is challenging. Eighteen di- and triferulic acids were synthesized both non-labeled as well as 13C-labeled. By using these standard compounds, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) (electrospray ionization, negative mode)-based stable isotope dilution approach was developed, fully validated and applied to plant materials. Whereas this stable isotope dilution approach is most useful to analyze plant materials with complex matrices (especially lignified tissues), less complicated matrices may not require this approach. Therefore, an alternative LC-MS/MS-based method that is based on using a single internal standard compound only was developed, too, validated, and compared to the stable isotope dilution approach. Although the stable isotope dilution approach appears to be superior, plant samples with simple matrices can also be screened by using the single internal standard method developed here.
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Affiliation(s)
- Martin Waterstraat
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Adenauerring 20a, 76131, Karlsruhe, Germany
| | - Mirko Bunzel
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Adenauerring 20a, 76131, Karlsruhe, Germany.
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Jia Y, He Y, Lu F. The structure-antioxidant activity relationship of dehydrodiferulates. Food Chem 2018; 269:480-485. [PMID: 30100463 DOI: 10.1016/j.foodchem.2018.07.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 12/15/2022]
Abstract
In this study, 11 dehydrodiferulic acids (DFAs) and 8 diethyl dehydrodiferulates (DEFs) were synthesized and evaluated by Trolox equivalent antioxidant capacity (TEAC) and 2,2'-diphenyl-1-picrylhydrazyl (DPPH) assays for their antioxidant properties to understand the Structure-Antioxidant Activity Relationship (SAR) of these dehydrodiferulates. In both assays, the order of antioxidant activity for all tested ferulic acid dimers were consistent except for 3-(4-Hydroxy-3-methoxy-benzylidene)-5-(4-hydroxy-3-methoxy-phenyl)-3H-furan-2-one (2, 8-8-lactone DC DFA, not occurred naturally) being the best antioxidant by TEAC test. The order of antioxidant activity of diferulic acid ethyl esters, evaluated by both assays, was not consistent; however, TEAC and DPPH assays provided consistent results for certain set of ethyl diferulates. In this study most of dimeric ferulates, with three exceptions, showed higher radical-scavenging efficacy than the monomers. Comparing the antioxidant activities of the tested diferulates suggested that the phenolic hydroxyl group, electron donating methoxyl group, and stable conjugated transient structures dictate the antioxidant activity of diferulates.
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Affiliation(s)
- Yuan Jia
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ying He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Fachuang Lu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou 510640, China.
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Waterstraat M, Bunzel M. A Multi-Step Chromatographic Approach to Purify Radically Generated Ferulate Oligomers Reveals Naturally Occurring 5-5/8-8(Cyclic)-, 8-8(Noncyclic)/8-O-4-, and 5-5/8-8(Noncyclic)-Coupled Dehydrotriferulic Acids. Front Chem 2018; 6:190. [PMID: 29951478 PMCID: PMC6008569 DOI: 10.3389/fchem.2018.00190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/14/2018] [Indexed: 11/13/2022] Open
Abstract
Ferulate-mediated cross-linking of plant cell wall polymers has various implications on the quality of plant based food products, forage digestibility, and biomass utilization. Besides dehydrodiferulic acids (DFA), dehydrotriferulic acids (TriFA) gained increasing interest over the past two decades, because they potentially cross-link up to three polymers. Here, we describe a separation strategy to obtain several TriFA as analytical standard compounds from a reaction mixture after radical coupling of ethyl ferulate. By using silica flash chromatography, Sephadex LH-20 chromatography, and reversed phase HPLC, six known TriFA as well as three previously unidentified ferulic acid trimers were obtained, and their structures were characterized by mass spectrometry and NMR spectroscopy (1H, HSQC, COSY, HMBC, and NOESY). The novel trimers were identified as 5-5/8-8(cyclic)-, 8-8(noncyclic)/8-O-4-, and, tentatively, 5-5/8-8(noncyclic)-TriFA. Natural occurrence of these TriFA in plant cell walls was demonstrated by LC-MS/MS analyses of alkaline cell wall hydrolyzates.
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Affiliation(s)
- Martin Waterstraat
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Mirko Bunzel
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology, Karlsruhe, Germany
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