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Yu C, Xie T, Liu S, Bai L. Fabrication of a biochar-doped monolithic adsorbent and its application for the extraction and determination of coumarins from Angelicae Pubescentis Radix. J Chromatogr A 2024; 1714:464564. [PMID: 38071875 DOI: 10.1016/j.chroma.2023.464564] [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: 08/25/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024]
Abstract
A monolithic adsorbent was designed aiming to the structure of osthole and columbianadin, and fabricated using diallyl phthalate as the monomer and ethylene dimethacrylate as the crosslinker with the addition of bamboo biochar, via polymerization reaction in a stainless-steel tube. The prepared composite adsorbent packed in the tube was used as a solid-phase extraction column for the extraction and determination of two coumarins (osthole and columbianadin) in Angelicae Pubescentis Radix, combing with a C18 analytical column through an HPLC instrument, which show excellent matrix-removal ability and good selectivity to osthole and columbianadin. Furthermore, the present adsorbent shows good applicability, which was used for the extraction of osthole from Duhuo Jisheng Pill. Compared to the commercial C18 and phenyl adsorbent, the present adsorbent own better selectivity and higher resolution. These results attributed to the enhanced specific surface area (141 m2/g) and enriched interaction sites of the resulting composite adsorbent, due to the doping of bamboo biochar, which can produce hydrogen bond, dipole-dipole, π-π and hydrophobic force interactions with the osthole and columbianadin. The methodology validation indicated that the present method showed good precision and good accuracy, and the composite adsorbent showed good preparative repeatability, which can be reused for no less than 100 times with the relative standard deviation ≤4.6 % (n = 100). The present work provided a simple and efficient method for the extraction and determination osthole and columbianadin from Angelicae Pubescentis Radix.
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Affiliation(s)
- Changqing Yu
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding, 071002, China
| | - Tiantian Xie
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding, 071002, China
| | - Sihan Liu
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding, 071002, China
| | - Ligai Bai
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding, 071002, China.
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Yang H, Li Q. Simultaneous Determination of the Content of Isoimperatorin, Imperatorin, Oxypeucedanin, Xanthotoxol and Byakangelicin in Angelica dahurica by HPTLC Scanning. J Chromatogr Sci 2023; 61:717-724. [PMID: 36336919 DOI: 10.1093/chromsci/bmac087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Indexed: 10/01/2023]
Abstract
In this study, we established a new rapid, simple and low cost method for the determination of coumarin components in Angelica dahurica using high-performance thin-layer chromatography (HPTLC) based on the standards of the Chinese Pharmacopoeia for the analysis of isoimperatorin, imperatorin, oxypeucedanin, xanthotoxol and byakangelicin. The coumarins in A. dahurica were extracted with solvent methods, and linear ascending development was carried out in a twin trough glass chamber saturated with petroleum ether-ethyl acetate (3:2, v/v). The plate was dried and analyzed by HPTLC scanner at 254 nm. The five coumarin components have achieved good separation, clear and satisfactory resolution with the Rf values of 0.84, 0.69, 0.64, 0.57 and 0.19 for isoimperatorin, imperatorin, oxypeucedanin, xanthotoxol and byakangelicin, respectively. The content of five coumarins were 0.282, 0.626, 0.393, 0.066 and 0.144, respectively. In addition, the calibration range was constructed in the range 0.8-4.0 μg/spot; the limit of detection and limit of quantification, precision, repeatability and recovery were stably and good. This study indicated that the HPTLC scanning could be used for the determination of multiple components in A. dahurica.
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Affiliation(s)
- Hanting Yang
- State Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Qian Li
- State Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, PR China
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Ma T, Wang X, Qu W, Yang L, Jing C, Zhu B, Zhang Y, Xie W. Osthole Suppresses Knee Osteoarthritis Development by Enhancing Autophagy Activated via the AMPK/ULK1 Pathway. Molecules 2022; 27:molecules27238624. [PMID: 36500713 PMCID: PMC9738845 DOI: 10.3390/molecules27238624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/29/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Knee osteoarthritis (KOA) is an increasingly prevalent heterogeneous disease characterized by cartilage erosion and inflammation. As the main chemical constituent of Angelicae Pubescentis Radix (APR), an anti-inflammatory herbal medicine, the potential biological effects and underlying mechanism of osthole on chondrocytes and KOA progression remain elusive. In this study, the potential effect and mechanism of osthole on KOA were investigated in vitro and in vivo. We found that osthole inhibited IL-1β-induced apoptosis and cartilage matrix degeneration by activating autophagy in rat chondrocytes. In addition, osthole could activate autophagy through phosphorylation of AMPK/ULK1, and AMPK serves as a positive upstream regulator of ULK1. Furthermore, KOA rats treated with osthole showed phosphorylation of the AMPK/ULK1 pathway and autophagy activation, as well as cartilage protection. Collectively, the AMPK/ULK1 signaling pathway can be activated by osthole to enhance autophagy, thereby suppressing KOA development. Osthole may be a novel and effective therapeutic agent for the clinical treatment of KOA.
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Affiliation(s)
- Teng Ma
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Xiangpeng Wang
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
| | - Wenjing Qu
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Lingsen Yang
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
| | - Cheng Jing
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
| | - Bingrui Zhu
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
| | - Yongkui Zhang
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
- Correspondence: (Y.Z.); (W.X.)
| | - Wenpeng Xie
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
- Correspondence: (Y.Z.); (W.X.)
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Research Progress of NMR in Natural Product Quantification. Molecules 2021; 26:molecules26206308. [PMID: 34684890 PMCID: PMC8541192 DOI: 10.3390/molecules26206308] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 12/17/2022] Open
Abstract
In the fields of medicine and health, traditional high-performance liquid chromatography or UV-visible spectrophotometry is generally used for substance quantification. However, over time, nuclear magnetic resonance spectroscopy (NMR) has gradually become more mature. Nuclear magnetic resonance spectroscopy has certain advantages in the quantitative analysis of substances, such as being nondestructive, having a high flux and short analysis time. Nuclear magnetic resonance spectroscopy has been included in the pharmacopoeiae of various countries. In this paper, the principle of nuclear magnetic resonance spectroscopy and the recent progress in the quantitative study of natural products by NMR are reviewed, and its application in the quantitative study of natural products is proposed. At the same time, the problems of using NMR alone to quantify natural products are summarized and corresponding suggestions are put forward.
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Graphene Assisted in the Analysis of Coumarins in Angelicae Pubescentis Radix by Dispersive Liquid-Liquid Microextraction Combined with 1H-qNMR. Molecules 2021; 26:molecules26092416. [PMID: 33919230 PMCID: PMC8122450 DOI: 10.3390/molecules26092416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 02/06/2023] Open
Abstract
The content of active components in traditional Chinese medicine is relatively small, and it is difficult to detect some trace components with modern analytical instruments, so good pretreatment and extraction are very important in the experiment. Graphene was introduced by a dispersive liquid–liquid microextraction method based on solidification of floating organic drop (DLLME-SFO) with graphene/1-dodecyl alcohol used as the extractant, and this method, combined with quantitative proton nuclear magnetic resonance spectroscopy (1H-qNMR), was used to simultaneously qualitative and quantitative osthole, columbianadin and isoimperatorin in Angelicae Pubescentis Radix. In this experiment, a magnetic stirrer was used for extraction, all NMR spectra were recorded on a Bruker Advance III 600 MHz spectrometer with dimethyl sulfoxide-d6 (DMSO-d6) as deuterated solvent and pyrazine as the internal standard. The influencing factors and NMR parameters in the extraction process were investigated and optimized. In addition, the methodology of the established method was also examined. The quantitative signals of osthole, columbianadin and isoimperatorin were at a chemical shift of δ6.25–δ6.26 ppm, δ6.83–δ6.85 ppm, and δ6.31–δ6.32 ppm. The linear ranges of osthole, columbianadin and isoimperatorin were all 0.0455–2.2727 mg/mL, and R2 were 0.9994, 0.9994 and 0.9995, respectively. The limits of detection of osthole, columbianadin and isoimperatorin were 0.0660, 0.0720, 0.0620 mg, and the limits of quantification of osthole, columbianadin and isoimperatorin were 0.2201, 0.2401, 0.2066 mg/mL. The solution had good stability and repeatability within 24 h. The recoveries of osthole, columbianadin and isoimperatorin were 102.26%, 99.89%, 103.28%, respectively. The established method is simple and easy to operate, which greatly reduces the cumbersome pretreatment of samples and has high extraction efficiency.
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Yu P, Li Q, Feng Y, Chen Y, Ma S, Ding X. Quantitative Analysis of Flavonoids in Glycyrrhiza uralensis Fisch by 1H-qNMR. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:6655572. [PMID: 33532111 PMCID: PMC7834775 DOI: 10.1155/2021/6655572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/19/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To establish a method for simultaneous determination of liquiritin, liquiritigenin, and isoliquiritinin glycyrrhizin using hydrogen nuclear magnetic resonance quantitative technology (1H-qNMR). Methodology. Deuterated dimethyl sulfoxide was used as the solvent, and dichloromethane was used as the internal standard. The probe temperature was 298.0 K, the pulse sequence was Zg30, the number of scans was 16, and relaxation delay (D1) was 10 s. Quantitative characteristic signal peaks were δ 4.891∼4.878 ppm, δ 8.187∼8.172 ppm, and δ 6.790∼6.776 ppm for liquiritin, isoliquiritin, and liquiritigenin, respectively. RESULTS The experimental result showed that the content of flavonoids in Licorice, from Chifeng, Inner Mongolia, was the highest. CONCLUSION In this study, a new method for determination of three flavonoids in Licorice using 1H-qNMR was established. This experimental method has the advantages of accuracy, efficiency, and economy. It lays a foundation for the study on the determination of flavonoids content in licorice by proton nuclear magnetic resonance spectroscopy.
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Affiliation(s)
- Ping Yu
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Qian Li
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Yanmei Feng
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuying Chen
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Sinan Ma
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiaoqin Ding
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
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