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Rapid quality evaluation of Plantaginis Semen by near infrared spectroscopy combined with chemometrics. J Pharm Biomed Anal 2022; 207:114435. [PMID: 34715582 DOI: 10.1016/j.jpba.2021.114435] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/10/2021] [Accepted: 10/19/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To establish a rapid and comprehensive method for the quality evaluation of Plantaginis Semen (PS) by using near-infrared spectroscopy combined with chemometrics to determine the content of geniposidic acid (GEA), verbascoside (VE), isoverbascoside (IVE) and total flavonoids (TF) in PS, as well as the antioxidant activity (AOA). METHODS The content of GEA, VE and IVE in PS were determined by HPLC, the content of TF in PS was determined by UV-Vis spectrophotometry, and the AOA of PS was characterized by the DPPH, ABTS and FRAP, respectively. Then, the measured values of each item were used as reference values and were correlated with the near infrared spectra of PS. Seven quantitative models were established by the partial least squares regression. A variety of spectral preprocessing, such as standard normal variation (SNV), multiplicative scatter correction (MSC), Savitzky-Golay smoothing (SG), derivative and their combination methods, were investigated. In addition, genetic algorithm (GA), particle swarm optimization (PSO), as well as competitive adaptive reweighted sampling (CARS) were also compared. All samples were divided into a calibration set and a prediction set at the ratio of 3:1 by the descending order of reference values. The coefficients of determination (R2), root mean square error (RMSE) and residual predictive deviation (RPD) were calculated to evaluate model performance. RESULTS After optimization, the performance of each model was greatly improved, where the R2 for calibration and prediction were both greater than 0.8, the RPD were both greater than 2. Such satisfactory results indicated that the present models had good prediction accuracy. CONCLUSION Quantitative models based on near infrared spectroscopy were herein established, which proved to be able to quickly and accurately determine the content of GEA, VE and IVE and TF, as well as AOA in PS, and which might provide a new method for rapid and comprehensive quality evaluation of PS.
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Suzuki R, Kasuya Y, Sano A, Tomita J, Maruyama T, Kitamura M. Comparison of various commercially available cinnamon barks using NMR metabolomics and the quantification of coumarin by quantitative NMR methods. J Nat Med 2021; 76:87-93. [PMID: 34357482 DOI: 10.1007/s11418-021-01554-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 07/26/2021] [Indexed: 11/24/2022]
Abstract
Cinnamon bark is an important spice worldwide. In this study, the chemical diversity of various commercially available cinnamon barks that differed in their production areas and utility applications (culinary spice or medicines) were investigated by the use of 1H NMR metabolomics. Our results indicated that principle component analysis (PCA) and hierarchical cluster analysis (HCA) of the 1H NMR spectra of the cinnamon bark methanolic extracts including the deduction of their species by nucleotide sequence analysis enabled differentiation of the cinnamon barks according to their species, production areas and utility applications. The constituents of Vietnam cinnamon were found to differ significantly from the other samples investigated based on PCA score plots and HCA constellation dendrograms. Coumarin was found to be a key compound for the discrimination of Vietnamese cinnamon by multivariate analysis of the 1H NMR spectral data and direct comparison of the 1H NMR spectra. In addition, coumarin was quantified using quantitative NMR methods. As a result, coumarin was contained in Vietnamese cinnamon at a higher level compared to other cinnamons. This study indicated that 1H NMR metabolomics could deduce spices, utility, and producing area of commercially available cinnamon barks. Furthermore, combining quantitative 1H NMR methods with 1H NMR metabolomics enable quantification of coumarin in cinnamon bark on a single measurement.
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Affiliation(s)
- Ryuichiro Suzuki
- Laboratory of Natural Products and Phytochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan.
| | - Yuki Kasuya
- Laboratory of Natural Products and Phytochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
| | - Aiko Sano
- Laboratory of Natural Products and Phytochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
| | - Junki Tomita
- Laboratory of Natural Products and Phytochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
| | - Takuro Maruyama
- Division of Pharmacognosy, Phytochemistry and Narcotics, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Masashi Kitamura
- Laboratory of Natural Products and Phytochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
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Akira K, Nohara A, Utsunomiya Y, Mitome H, Watanabe S, Tanaka M, Tanaka A. Application of Quantitative NMR Spectroscopy to the Quality Evaluation of Diclofenac Gargles as Hospital Preparations. Chem Pharm Bull (Tokyo) 2021; 69:721-726. [PMID: 34334515 DOI: 10.1248/cpb.c21-00079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hospital preparations are frequently prepared in Japanese hospitals when ready-made formulations to meet patients' needs are unavailable. Although the quality of hospital preparations have to be ensured for efficacy and safety, such quality evaluation tends to be insufficient mainly due to lack of manpower and experimental environments in hospitals. In this paper, we investigated the applicability of quantitative (q)NMR spectroscopy to the quality control of diclofenac gargles as examples of hospital preparations, as it has various merits for the quantitative analysis of mixtures in solutions. Diclofenac gargles are composed of diclofenac, tranexamic acid, and lidocaine, and are used for the pain relief of stomatitis induced by cancer chemotherapy. Aliquots of the gargles, which were prepared five times, were mixed with dimethylsulfone as an internal standard, followed by qNMR measurements. Water signal suppression was achieved using a pulse program, water suppression enhanced through T1 effects, because the pulse program was superior to other ones such as presaturation and one-dimensional nuclear Overhauser effect spectroscopy in terms of quantitativeness. Concentrations of the three medicinal ingredients were simultaneously determined based on the signals selected by considering the spectral separation and the quantitativeness. Consequently, the gargles were found to be prepared with constant quality, and were stable at room temperature for at least four weeks. qNMR is considered to be potentially useful for the quality control of various hospital preparations because of minimal sample pretreatments, lack of need of calibration curves, and its comprehensive detection abilities.
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Affiliation(s)
- Kazuki Akira
- Laboratory of Pharmaceutical Analytical Chemistry, College of Pharmaceutical Sciences, Matsuyama University
| | - Ayaka Nohara
- Laboratory of Pharmaceutical Analytical Chemistry, College of Pharmaceutical Sciences, Matsuyama University
| | - Yuka Utsunomiya
- Laboratory of Pharmaceutical Analytical Chemistry, College of Pharmaceutical Sciences, Matsuyama University
| | - Hidemichi Mitome
- Laboratory of Pharmaceutical Analytical Chemistry, College of Pharmaceutical Sciences, Matsuyama University
| | - Shinichi Watanabe
- Laboratory of Pharmaceutical Analytical Chemistry, College of Pharmaceutical Sciences, Matsuyama University
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Nakayama A, Tsuchiya K, Xu L, Matsumoto T, Makino T. Drug-interaction between paclitaxel and goshajinkigan extract and its constituents. J Nat Med 2021; 76:59-67. [PMID: 34304352 PMCID: PMC8732799 DOI: 10.1007/s11418-021-01552-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/16/2021] [Indexed: 11/30/2022]
Abstract
Paclitaxel, a standard chemotherapeutic agent for several types of cancer, including ovarian, breast, and non-small-cell lung cancer, causes peripheral neuropathy as an adverse effect in 60–70% of the patients. The utility of combination therapy with paclitaxel and goshajinkigan, a traditional Japanese Kampo medicine, in managing paclitaxel-induced neuropathy during chemotherapy has been explored. Paclitaxel is predominantly metabolized in the liver by cytochrome P450 (CYP) 2C8 to produce 6α-hydroxypaclitaxel and by CYP3A4 to produce 3′-p-hydroxypaclitaxel. In this study, we evaluated the inhibitory or inducing effects of goshajinkigan extract (GJG) and its representative and bioavailable constituents, geniposidic acid, plantagoguanidinic acid, paeoniflorin, catalpol, loganin, and neoline, on the metabolism of paclitaxel via CYP2C8 and CYP3A4 using pooled human liver microsomes and cultured human cryopreserved hepatocytes to provide the drug information about the pharmacokinetic interaction of this combination therapy. GJG significantly inhibited the production of 3’-p-hydroxypaclitaxel and 6α-hydroxypaclitaxel in vitro in a concentration-dependent manner. The half maximal inhibitory concentration (IC50) values of GJG were 4.5 and 7.8 mg/ml, respectively, for 3′-p-hydroxypaclitaxel and 6α-hydroxypaclitaxel productions. Neoline inhibited the production of 3′-p-hydroxypaclitaxel at 50 μM, but not at lower concentrations. Apart from neoline, other GJG constituents (at concentrations up to 50 or 10 μM of all test substances) did not exhibit inhibitory or inducing effects. Since GJG showed the inhibitory effect on the metabolism of paclitaxel at much higher concentrations than those used clinically, it can be concluded that GJG product does not exhibit any pharmacokinetic interaction with paclitaxel in clinical practice.
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Affiliation(s)
- Akiko Nakayama
- Tsumura Advanced Technology Research Laboratories, Kampo Research and Development Division, Tsumura & Co., Ibaraki, 300-1192, Japan
| | - Kazuaki Tsuchiya
- Tsumura Advanced Technology Research Laboratories, Kampo Research and Development Division, Tsumura & Co., Ibaraki, 300-1192, Japan
| | - Lingyu Xu
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Takashi Matsumoto
- Tsumura Advanced Technology Research Laboratories, Kampo Research and Development Division, Tsumura & Co., Ibaraki, 300-1192, Japan
| | - Toshiaki Makino
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
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Batsukh Z, Toume K, Javzan B, Kazuma K, Cai SQ, Hayashi S, Atsumi T, Yoshitomi T, Uchiyama N, Maruyama T, Kawahara N, Komatsu K. Characterization of metabolites in Saposhnikovia divaricata root from Mongolia. J Nat Med 2020; 75:11-27. [PMID: 32740706 DOI: 10.1007/s11418-020-01430-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 06/25/2020] [Indexed: 02/03/2023]
Abstract
Saposhnikoviae Radix (SR), derived from the dried root and rhizome of Saposhnikovia divaricata, is a popular crude drug used in traditional Chinese and Japanese medicine. To evaluate the metabolites of S. divaricata roots from Mongolia and to investigate their geographical variation, we developed the HPLC method, determined the contents of 9 chromones and 4 coumarins, and conducted multivariate statistical analysis. All Mongolian specimens contained prim-O-glucosylcimifugin (1) and 4'-O-β-D-glucosyl-5-O-methylvisamminol (3), and their total amount (5.04-25.06 mg/g) exceeded the criterion assigned in the Chinese Pharmacopoeia. Moreover, the content of 1 (3.98-20.79 mg/g) was significantly higher in the Mongolian specimens than in Chinese SR samples. The specimens from Norovlin showed the highest contents of 1 and 3. The total levels of dihydropyranochromones were higher in the specimens from Bayan-Uul. The orthogonal partial least squares-discriminant analysis revealed that the Mongolian specimens tended to be separated into three groups based on growing regions, in which several chromones contributed to each distribution. Furthermore, 1H NMR analysis revealed that Mongolian specimens had less amount of sucrose and a substantial amount of polyacetylenes. Thus, in this study, the chemical characteristics of Mongolian S. divaricata specimens were clarified and it was found that the specimens from the northeast part of Mongolia, including Norovlin, had the superior properties due to higher amounts of major chromones.
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Affiliation(s)
- Zolboo Batsukh
- Section of Pharmacognosy, Institute of Natural Medicine, University of Toyama, 2630, Sugitani, Toyama, 930-0194, Japan
| | - Kazufumi Toume
- Section of Pharmacognosy, Institute of Natural Medicine, University of Toyama, 2630, Sugitani, Toyama, 930-0194, Japan.
| | - Batkhuu Javzan
- School of Engineering and Applied Sciences, National University of Mongolia, P.O.B-617/46A, Ulaanbaatar, 14201, Mongolia
| | - Kohei Kazuma
- Section of Pharmacognosy, Institute of Natural Medicine, University of Toyama, 2630, Sugitani, Toyama, 930-0194, Japan
| | - Shao-Qing Cai
- School of Pharmaceutical Sciences, Peking University, 38 Xue-yuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Shigeki Hayashi
- Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 305-0843, Japan
| | - Toshiyuki Atsumi
- School of Pharmaceutical Sciences, Kyushu University of Health and Welfare, 1714-1 Yoshinocho, Nobeoka, Miyazaki, 882-8508, Japan
| | - Taichi Yoshitomi
- Division of Pharmacognosy, Phytochemistry and Narcotics, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Nahoko Uchiyama
- Division of Pharmacognosy, Phytochemistry and Narcotics, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Takuro Maruyama
- Division of Pharmacognosy, Phytochemistry and Narcotics, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Nobuo Kawahara
- Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 305-0843, Japan
| | - Katsuko Komatsu
- Section of Pharmacognosy, Institute of Natural Medicine, University of Toyama, 2630, Sugitani, Toyama, 930-0194, Japan.
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A Method for the Rapid Measurement of Alkylresorcinols in Flour, Bread and Related Products Based on 1H qNMR. Foods 2020; 9:foods9081025. [PMID: 32751799 PMCID: PMC7466349 DOI: 10.3390/foods9081025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 01/10/2023] Open
Abstract
The main objectives of the current work were to investigate differences among flours from traditionally preserved Greek varieties of cereals, and especially those of wheat, and in parallel, to correlate those potential differences with the presence of bioactive natural ingredients. In this context, we developed a new, fast, and simple method for the measurement of total 5-alkylresorcinols in cereals and related foods by qNMR. Several types of flour (white or whole-grain) coming from wheat, i.e., Triticum dicoccum, T. monococcum, T. aestivum, T. durum and T. turgidum, corn, barley, rye and oat from a certified producer in Greece were used either as raw materials or for the production of bread, pasta and flakes. A small portion of the flour or the corresponding product was extracted with DMSO-d6. The liquid part was directly analyzed by NMR (400 MHz). The simplicity of the NMR spectrum of the total extract and the lack of overlapping peaks permitted the development of a high throughput quantitative method for the measurement of total bioactive alkylresorcinols in less than 15 min. Grains, whole grain flours and breads from old varieties of T. dicoccum and T.monococcum showed high contents of alkylresorcinols (455–1148 mg/Kg), while the same compounds were completely absent from white flour and the corresponding bread. The term high-phenolic flour is proposed to distinguish among flour types.
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Yang L, Li Q, Feng Y, Qiu D. Simultaneous Determination of Three Coumarins in Angelica dahurica by 1H-qNMR Method: A Fast and Validated Method for Crude Drug Quality Control. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:8987560. [PMID: 32280555 PMCID: PMC7128064 DOI: 10.1155/2020/8987560] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/05/2019] [Accepted: 12/24/2019] [Indexed: 05/09/2023]
Abstract
In this study, a quantitative 1H NMR method (1H-qNMR) for determining the contents of imperatorin, byakangelicin, and oxypeucedanin in A. dahurica in traditional Chinese medicine (TCM) has been established. Dried plant material was extracted exhaustively with methanol by an ultrasonication-assisted extraction method. The 1H-qNMR measurements were performed on a 600 -MHz spectrometer with hydroquinone as the internal standard reference in deuterated dimethyl sulfoxide (DMSO-d6) solvent. Quantification was carried out using the 1H resonance signals at 6.55 ppm for hydroquinone and 7.68, 7.38-7.39, and 6.38-6.39 ppm for imperatorin, byakangelicin, and oxypeucedanin, respectively. The linearity, limit of detection (LOD), limit of quantitation (LOQ), precision, reproducibility, stability, and recovery of the methodology were evaluated, and results were good. The newly developed method has been applied to determine the three coumarins in A. dahurica.
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Affiliation(s)
- Lan Yang
- 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
| | - Daiyu Qiu
- Gansu Provincial Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
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Suiter CL, McLinden MO, Bruno TJ, Widegren JA. Composition Determination of Low-Pressure Gas-Phase Mixtures by 1H NMR Spectroscopy. Anal Chem 2019; 91:4429-4435. [PMID: 30829480 PMCID: PMC7008668 DOI: 10.1021/acs.analchem.8b04955] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1H NMR spectroscopy was used to analyze gas-phase mixtures of methane and propane at pressures near 0.1 MPa. The mixtures were prepared gravimetrically and had low uncertainty in their composition. The primary mixture used for this work had a methane mole fraction of xmethane,grav = (0.506875 ± 0.00019) and a propane mole fraction of xpropane,grav = (0.493125 ± 0.00019). NMR samples were prepared in two types of commercially available sample tubes that seal with a PTFE piston. Sample pressures ranged from 0.02 to 0.5 MPa. An analysis of measurement uncertainty for the NMR method resulted in combined standard uncertainties that decreased from 0.0082 x to 0.0010 x, as the pressure increased from 0.02 to 0.5 MPa. The larger uncertainties at lower pressures were primarily caused by uncertainties associated with phasing and baseline correction. A key difficulty in working with gas-phase samples, especially at lower pressures, is that the spectral peaks are inherently broad. Consequently, peak overlap was problematic, and it was not always possible to integrate a high percentage of a peak's intensity. However, with corrections to the integrated areas, based on the assumption of ideal Lorentzian peak shapes, excellent agreement between the NMR analyses and the gravimetric composition was observed across the entire pressure range. These experiments demonstrate the potential of 1H NMR for quantitative composition determinations of low-pressure gas-phase mixtures.
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Affiliation(s)
- Christopher L. Suiter
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305-3328, United States
| | - Mark O. McLinden
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305-3328, United States
| | - Thomas J. Bruno
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305-3328, United States
| | - Jason A. Widegren
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305-3328, United States
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Dong JW, Li XJ, Shi JY, Liu KQ. Application of a proton quantitative nuclear magnetic resonance spectroscopy method for the determination of actinodaphnine in Illigera aromatica and Illigera henryi. J Nat Med 2018; 73:312-317. [PMID: 30414014 DOI: 10.1007/s11418-018-1264-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/29/2018] [Indexed: 11/29/2022]
Abstract
Illigera aromatica S. Z. Huang et S. L. Mo and Illigera henryi W. W. Sm., belonging to the genus Illigera (Hernandiaceae), are used as herbal medicines for promoting blood circulation and treating tuberculosis. Actinodaphnine, the major bioactive alkaloid, plays an important role in the quality controls of the herbs. In the present study, a rapid, simple, accurate, and precise proton quantitative nuclear magnetic resonance (1H-qNMR) method was developed to determine the content of actinodaphnine in I. aromatica and I. henryi. DMSO-d6 enabled satisfactory separation of the signals to be integrated in 1H NMR spectrum. 1,4-Dinitrobenzene was selected as an internal standard. The limits of determination and quantitation were 0.005 and 0.038 mg/mL, respectively. This work implied that 1H-qNMR represents a feasible alternative to HPLC-based methods for quantitation of actinodaphnine in I. aromatica and I. henryi and is suitable for the quality control of I. aromatica and I. henryi.
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Affiliation(s)
- Jian-Wei Dong
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing, 655011, People's Republic of China.
| | - Xue-Jiao Li
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing, 655011, People's Republic of China
| | - Jun-You Shi
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing, 655011, People's Republic of China
| | - Kai-Quan Liu
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing, 655011, People's Republic of China
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Liang T, Miyakawa T, Yang J, Ishikawa T, Tanokura M. Quantification of terpene trilactones in Ginkgo biloba with a 1H NMR method. J Nat Med 2018; 72:793-797. [PMID: 29569220 DOI: 10.1007/s11418-018-1203-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/12/2018] [Indexed: 01/01/2023]
Abstract
Ginkgo biloba L. has been used as a herbal medicine in the traditional treatment of insufficient blood flow, memory deficits, and cerebral insufficiency. The terpene trilactone components, the bioactive agents of Ginkgo biloba L., have also been reported to exhibit useful functionality such as anti-inflammatory and neuroprotective effects. Therefore, in the present research, we attempted to analyze quantitatively the terpene trilactone components in Ginkgo biloba leaf extract, with quantitative 1H NMR (qNMR) and obtained almost identical results to data reported using HPLC. Application of the qNMR method for the analysis of the terpene trilactone contents in commercial Ginkgo extract products, such as soft gel capsules and tablets, produced the same levels noted in package labels. Thus, qNMR is an alternative method for quantification of the terpene trilactone components in commercial Ginkgo extract products.
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Affiliation(s)
- Tingfu Liang
- Tokiwa Phytochemical Co. Ltd, 158 Kinoko, Sakura, Chiba, 285-0801, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Jinwei Yang
- Tokiwa Phytochemical Co. Ltd, 158 Kinoko, Sakura, Chiba, 285-0801, Japan.
| | - Tsutomu Ishikawa
- Tokiwa Phytochemical Co. Ltd, 158 Kinoko, Sakura, Chiba, 285-0801, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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Meng FC, Wu ZF, Yin ZQ, Lin LG, Wang R, Zhang QW. Coptidis rhizoma and its main bioactive components: recent advances in chemical investigation, quality evaluation and pharmacological activity. Chin Med 2018. [PMID: 29541156 PMCID: PMC5842587 DOI: 10.1186/s13020-018-0171-3] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Coptidis rhizoma (CR) is the dried rhizome of Coptis chinensis Franch., C. deltoidea C. Y. Cheng et Hsiao or C. teeta Wall. (Ranunculaceae) and is commonly used in Traditional Chinese Medicine for the treatment of various diseases including bacillary dysentery, typhoid, tuberculosis, epidemic cerebrospinal meningitis, empyrosis, pertussis, and other illnesses. Methods A literature survey was conducted via SciFinder, ScieneDirect, PubMed, Springer, and Wiley databases. A total of 139 selected references were classified on the basis of their research scopes, including chemical investigation, quality evaluation and pharmacological studies. Results Many types of secondary metabolites including alkaloids, lignans, phenylpropanoids, flavonoids, phenolic compounds, saccharides, and steroids have been isolated from CR. Among them, protoberberine-type alkaloids, such as berberine, palmatine, coptisine, epiberberine, jatrorrhizine, columamine, are the main components of CR. Quantitative determination of these alkaloids is a very important aspect in the quality evaluation of CR. In recent years, with the advances in isolation and detection technologies, many new instruments and methods have been developed for the quantitative and qualitative analysis of the main alkaloids from CR. The quality control of CR has provided safety for pharmacological applications. These quality evaluation methods are also frequently employed to screen the active components from CR. Various investigations have shown that CR and its main alkaloids exhibited many powerful pharmacological effects including anti-inflammatory, anti-cancer, anti-diabetic, neuroprotective, cardioprotective, hypoglycemic, anti-Alzheimer and hepatoprotective activities. Conclusion This review summarizes the recent phytochemical investigations, quality evaluation methods, the biological studies focusing on CR as well as its main alkaloids.
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Affiliation(s)
- Fan-Cheng Meng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, People's Republic of China
| | - Zheng-Feng Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, People's Republic of China
| | - Zhi-Qi Yin
- 2Department of Traditional Chinese Medicines Pharmaceuticals, China Pharmaceutical University, Nanjing, 210009 People's Republic of China
| | - Li-Gen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, People's Republic of China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, People's Republic of China
| | - Qing-Wen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, People's Republic of China
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