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Zhang CY, Qiu WF, Chen YZ, Mo XL, Yan HF. The complete plastid genome of Abrus pulchellus subsp. mollis (Leguminosae): a medicinal plant in Southern China. Mitochondrial DNA B Resour 2024; 9:943-947. [PMID: 39081905 PMCID: PMC11288203 DOI: 10.1080/23802359.2024.2383684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/18/2024] [Indexed: 08/02/2024] Open
Abstract
The subspecies Abrus pulchellus subsp. mollis exhibits pharmacological properties akin to the traditional Chinese medicinal plant Abri Herba (A. pulchellus subsp. cantoniensis (Hance) Verdc.). In this report, we unveil the plastid genome of A. pulchellus subsp. mollis. The genome spans 156,322 base pairs (bp), comprising a large single-copy (LSC) region of 86,633 bp, a small single-copy (SSC) region of 18,219 bp, and two distinct inverted repeat regions (IRs) of 25,735 bp each. Annotation process cataloged a total of 111 genes within this genome, including 77 protein-coding genes, 30 transfer RNA (tRNA) genes, and four ribosomal RNA (rRNA) genes. The overall guanine-cytosine (GC) content of the plastome is 35.5%. Phylogenetic analysis utilizing maximum-likelihood (ML) based on 16 complete plastid genomes reveals a close clustering of three Abrus taxa, namely A. pulchellus subsp. mollis, A. pulchellus subsp. cantoniensis, and A. precatorius. Notably, A. pulchellus subsp. cantoniensis clusters with A. precatorius as a sister group, distinct from A. pulchellus subsp. mollis. These findings highlight significant differences between the plastid genomes of the two subspecies, laying the foundation for future research on the identification of medicinal herbs and germplasm resources related to these subspecies.
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Affiliation(s)
- Cai-Yun Zhang
- Guangdong Food and Drug Vocational College, Guangzhou, China
| | - Wei-Fen Qiu
- Guangdong Food and Drug Vocational College, Guangzhou, China
| | - Yu-Zhen Chen
- Guangdong Food and Drug Vocational College, Guangzhou, China
| | - Xiao-Lu Mo
- Guangdong Food and Drug Vocational College, Guangzhou, China
| | - Hai-Fei Yan
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
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Zhao Q, Yang J, Li J, Zhang L, Yan X, Yue T, Yuan Y. Hypoglycemic effect and intestinal transport of phenolics-rich extract from digested mulberry leaves in Caco-2/insulin-resistant HepG2 co-culture model. Food Res Int 2024; 175:113689. [PMID: 38129030 DOI: 10.1016/j.foodres.2023.113689] [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: 07/11/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
Phenolics of mulberry (Morus alba L.) leaves (MLs) have potential anti-diabetic effects, but they may be chemically modified during gastrointestinal digestion so affect their biological activity. In this study, an in vitro digestion model coupled with Caco-2 monolayer and Caco-2/insulin-resistant HepG2 coculture model were used to study the transport and hypoglycemic effects of phenolics in raw MLs (U-MLs) and solid-fermented MLs (F-MLs). The results of LC-MS/MS analysis showed that the Papp (apparent permeability coefficient, 10-6cm/s) of phenolics in digested MLs ranged from 0.002 ± 0.00 (quercetin 3-O-glucoside) to 60.19 ± 0.67 (ferulic acid), indicating higher phenolic acids absorbability and poor flavonoids absorbability. The Papp values of phenolic extracts of F-MLs in Caco-2 monolayer were significantly higher (p > 0.05) than that of U-MLs. Digested phenolic extracts inhibited the activities of sucrase (60.13 ± 2.03 %) and maltase (82.35 ± 0.78 %) and decreased 9.28 ± 0.84 % of glucose uptake in Caco-2 monolayer. Furthermore, a decrease in the mRNA expression of glucose transporters SGLT1 (0.64 ± 0.18), GLUT2 (0.14 ± 0.02) and the sucrase-isomaltase (0.59 ± 0.00) was observed. In Caco-2/insulin-resistant HepG2 co-culture model, phenolic extracts regulated glucose metabolism by up-regulating the mRNA expressions of IRS1 (9.32-fold), Akt (17.07-fold) and GYS2 (1.5-fold), and down-regulating the GSK-3β (0.22-fold), PEPCK (0.49-fold) and FOXO1 (0.10-fold) mRNA levels. Both U-MLs and F-MLs could improve glucose metabolism, and the partial least squares (PLS) analysis showed that luteoforol and p-coumaric acid were the primary phenolics that strongly correlated with the hypoglycemic ability of MLs. Results suggested that phenolics of MLs can be used as dietary supplements to regulate glucose metabolism.
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Affiliation(s)
- Qiannan Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Jinyi Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Jiahui Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Lei Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Xiaohai Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; College of Food Science and Techonology, Northwest University, Xi'an 710069, China.
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; College of Food Science and Techonology, Northwest University, Xi'an 710069, China.
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Le Dang Q, Vu HD, Nguyen VM, Choi GJ, Hoa LTP, Dung DT, Van Kiem P, Nhiem NX, De Tran Q, Nguyen QC, Nghiem DT, Quang DN. Desmodinosides A-E: New Flavonoid C-glycosides from Desmodium heterocarpon var. stigosum with hepatoprotective and antifungal activity. Fitoterapia 2023; 169:105609. [PMID: 37453701 DOI: 10.1016/j.fitote.2023.105609] [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: 04/16/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Five new flavonoid C-glycosides named desmodinosides A-E (1-5) and one known compound, apigenin 6-C-β-d-xylopyranosyl-2''-O-β-D-glucopyranoside (6) have been isolated from the methanol extract of the aerial parts of Desmodium heterocarpon var. stigosum. These compounds were determined by 1D and 2D-NMR and HR-MS spectroscopies. The methanol extract of this plant, in particular, demonstrated hepatoprotection and antifungal inhibition. This extract has a remarkable hepatoprotection and activity-dose response with an EC50 of 43.07 μg/mL. The hepatoprotective effect on human liver hepatoma cells (HepG2) of the isolated flavonoid C-glycosides 1-6 was observed. Desmodinosides A-C (1-3) were found to exhibit moderate hepatoprotective activity on HepG2 cells. Of these, compound 2 showed the best hepatoprotective activity with an EC50 value of 74.12 μg/mL. While compounds 1 and 3 displayed EC50 values of 271.21 and 211.99 μg/mL, respectively. Quercetin, a positive control, also caused an EC50 value of 36.42 μg/mL. In addition to having hepatoprotective effect, the methanol extract had an inhibitory effect on the growth of oomycete; it inhibited Phytophthora infestans with IC50 of 13.3 μg/mL and IC90 of 78.7 μg/mL. The oomycete inhibition was directly attributed to compounds 5 and 6, which significantly inhibited P. infestans with IC50 values of 27.4 and 24.7 μg/mL, respectively. Both 5 and 6 and methanol extract were active against P. infestanse in a dose-dependent manner. Our study demonstrated for the first time the new flavonoid C-glycosides from D. heterocarpon var. stigosum and their novel pharmacological properties. The study findings also suggest the plant extract and its metabolites could be used as a new botanical source of bioactive compounds.
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Affiliation(s)
- Quang Le Dang
- Institute for Tropical Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam.
| | - Hoang Dinh Vu
- Department of Pharmaceutical Chemistry and Pesticides Technology, School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi 10000, Viet Nam
| | - Van Minh Nguyen
- Eco-Friendly New Materials Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Gyung Ja Choi
- Eco-Friendly New Materials Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Le Thi Phuong Hoa
- Hanoi National University of Education, 136 Xuanthuy Road, CauGiay, Hanoi 10000, Viet Nam
| | - Duong Thi Dung
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam; Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam; Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam
| | - Nguyen Xuan Nhiem
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam; Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet str., Cau Giay dist., Hanoi 10072, Viet Nam
| | - Quang De Tran
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 90000, Viet Nam
| | - Quoc Cuong Nguyen
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 90000, Viet Nam
| | - Duc Trong Nghiem
- Botany Department, Hanoi University of Pharmacy, Hanoi 10000, Viet Nam
| | - Dang Ngoc Quang
- Hanoi National University of Education, 136 Xuanthuy Road, CauGiay, Hanoi 10000, Viet Nam.
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Li X, Chen C, Ding N, Zhang T, Zheng P, Yang M. Physiologically based pharmacokinetic modelling and simulation to predict the plasma concentration profile of schaftoside after oral administration of total flavonoids of Desmodium styracifolium. Front Pharmacol 2022; 13:1073535. [PMID: 36588682 PMCID: PMC9794590 DOI: 10.3389/fphar.2022.1073535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/30/2022] [Indexed: 01/03/2023] Open
Abstract
Introduction: The total flavonoids of Desmodium styracifolium (TFDS) are the flavonoid extracts purified from Desmodii Styracifolii Herba. The capsule of TFDS was approved for the treatment of urolithiasis by NMPA in 2022. Schaftoside is the representative compound of TFDS that possesses antilithic and antioxidant effects. The aim of this study was to develop a physiologically based pharmacokinetic (PBPK) model of schaftoside to simulate its plasma concentration profile in rat and human after oral administration of the total flavonoids of Desmodium styracifolium. Methods: The physiologically based pharmacokinetic model of schaftoside was firstly developed and verified by the pharmacokinetic data in rats following intravenous injection and oral administration of the total flavonoids of Desmodium styracifolium. Then the PBPK model was extrapolated to human with PK-Sim® software. In order to assess the accuracy of the extrapolation, a preliminary multiple-dose clinical study was performed in four healthy volunteers aged 18-45 years old. The predictive performance of PBPK model was mainly evaluated by visual predictive checks and fold error of Cmax and AUC0-t of schaftoside (the ratio of predicted to observed). Finally, the adult PBPK model was scaled to several subpopulations including elderly and renally impaired patients. Results: Schaftoside underwent poor metabolism in rat and human liver microsomes in vitro, and in vivo it was extensively excreted into urine and bile as an unchanged form. By utilizing literature and experimental data, the PBPK model of schaftoside was well established in rat and human. The predicted plasma concentration profiles of schaftoside were consistent with the corresponding observed data, and the fold error values were within the 2-fold acceptance criterion. No significant pharmacokinetic differences were observed after extrapolation from adult (18-40 years old) to elderly populations (71-80 years) in PK-Sim®. However, the plasma concentration of schaftoside was predicted to be much higher in renally impaired patients. The maximum steady-state plasma concentrations in patients with chronic kidney disease stage 3, 4 and 5 were 3.41, 12.32 and 23.77 times higher, respectively, than those in healthy people. Conclusion: The established PBPK model of schaftoside provided useful insight for dose selection of the total flavonoids of Desmodium styracifolium in different populations. This study provided a feasible way for the assessment of efficacy and safety of herbal medicines.
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Affiliation(s)
- Xue Li
- Phase I Clinical Research Lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chao Chen
- Phase I Clinical Research Lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Nan Ding
- Phase I Clinical Research Lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tianjiao Zhang
- Phase I Clinical Research Lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Peiyong Zheng
- Clinical Research Center, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Peiyong Zheng, ; Ming Yang,
| | - Ming Yang
- Phase I Clinical Research Lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Clinical Research Center, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Peiyong Zheng, ; Ming Yang,
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Li X, Chen C, Zhang T, Ding N, Zheng P, Yang M. Comparative pharmacokinetic studies of five C-glycosylflavones in normal and urolithiasis model rats following administration of total flavonoids from Desmodium styracifolium by liquid chromatography-tandem mass spectrometry. J Sep Sci 2022; 45:2901-2913. [PMID: 35671519 DOI: 10.1002/jssc.202200010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/08/2022] [Accepted: 06/03/2022] [Indexed: 11/09/2022]
Abstract
The total flavonoids of Desmodium styracifolium are the flavonoid extracts purified from Desmodii Styracifolii Herba, which has conventionally been used for treating urolithiasis in China. In this study, a sensitive and simple liquid chromatography-tandem mass spectrometry method was developed to simultaneously determine five active components of the extracts in rat plasma. Chromatographic separation of the analytes (schaftoside, vicenin-1, vicenin-2, vicenin-3 and isovitexin) was performed on an ACQUITY UPLC HSS T3 Column under gradient elution conditions. The calibration curves were linear over ranges from 0.5 to 100 ng·mL-1 for schaftoside, vicenin-1, vicenin-2, and vicenin-3, and 0.2 to 20 ng·mL-1 for isovitexin. The RSD of intra- and inter-day precisions were ≤ 6.8% and ≤ 8.3%, respectively, and the accuracies (relative error) were within ±7.6%. The recoveries of the analytes ranged between 97.3 and 100.3%, and the matrix effects ranged from 98.6 to 113.8%. The method was successfully applied to the pharmacokinetic studies of the five active ingredients of Desmodium styracifolium, for the first time, in both normal and urolithiasis model rats. Results revealed that the plasma levels of these components were significantly increased under the pathological state. This study provided valuable information facilitating the clinical investigation of this medicine. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Xue Li
- Phase I Clinical Research lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Chao Chen
- Phase I Clinical Research lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Tianjiao Zhang
- Phase I Clinical Research lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Nan Ding
- Phase I Clinical Research lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Peiyong Zheng
- Clinical research center, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Ming Yang
- Phase I Clinical Research lab, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
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