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Wu D, Jiang S, Wang G, Wang L, Wu L, Li J, Jia W, Liu L, Xu J, Zhang D, Zhao X, Yue H. Characterization of alkaloids and phenolics in Nitraria roborowskii Kom. fruit by UHPLC-triple-TOF-MS/MS and its sucrase and maltase inhibitory effects. Food Chem 2024; 447:138743. [PMID: 38452535 DOI: 10.1016/j.foodchem.2024.138743] [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: 09/28/2023] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 03/09/2024]
Abstract
Nitraria roborowskii Kom (NRK), with high economic and ecological value, is mainly distributed in the Qaidam Basin, China. However, research on its chemical components and bioactivities is still rare. In this study, its chemical constituents (52) including 10 β-carboline alkaloids, nine cyclic peptides, three indole alkaloids, five pyrrole alkaloids, eight phenolic acids and 17 flavonoids were identified tentatively using UPLC-triple-TOF-MS/MS. Notablely, one new β-carboline alkaloid and five new cyclic peptides were confirmed using MS/MS fragmentation pathways. In addition, experiments in vitro indicated that NRK-C had strong maltase and sucrase inhibitory activities (IC50 of 0.202 and 0.103 mg/mL, respectively). Polysaccharide tolerance experiments confirmed NRK-C (400 mg/kg) was associated with decreased postprandial blood glucose (PBG) in diabetic mice. These results suggested that NRK fruit might be used as a functional ingredient in food products.
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Affiliation(s)
- Di Wu
- Qinghai University, Qinghai, China
| | - Sirong Jiang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China
| | | | - Luya Wang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Li Wu
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jiaxin Li
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wenjiang Jia
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Liying Liu
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jiyu Xu
- Qinghai University, Qinghai, China
| | | | - Xiaohui Zhao
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China.
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China.
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Zhang S, Wang X, Wang X, Fan X, Liu K, Sa Y, Wilson G, Ma X, Chen G. Establishment and application of a screening method for α-glucosidase inhibitors based on dual sensing and affinity chromatography. J Chromatogr A 2024; 1720:464822. [PMID: 38502989 DOI: 10.1016/j.chroma.2024.464822] [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: 11/22/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 03/21/2024]
Abstract
α-Glucosidase plays a direct role in the metabolic pathways of starch and glycogen, any dysfunction in its activity could result in metabolic disease. Concurrently, this enzyme serves as a target for diverse drugs and inhibitors, contributing to the regulation of glucose metabolism in the human body. Here, an integrated analytical method was established to screen inhibitors of α-glucosidase. This step-by-step screening model was accomplished through the biosensing and affinity chromatography techniques. The newly proposed sensing program had a good linear relationship within the enzyme activity range of 0.25 U mL-1 to 1.25 U mL-1, which can quickly identify active ingredients in complex samples. Then the potential active ingredients can be captured, separated, and identified by an affinity chromatography model. The combination of the two parts was achieved by an immobilized enzyme technology and a microdevice for reaction, and the combination not only ensured efficiency and accuracy for inhibitor screening but also eliminated the occurrence of false positive results in the past. The emodin, with a notable inhibitory effect on α-glucosidase, was successfully screened from five traditional Chinese medicines using this method. The molecular docking results also demonstrated that emodin was well embedded into the active pocket of α-glucosidase. In summary, the strategy provided an efficient method for developing new enzyme inhibitors from natural products.
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Affiliation(s)
- Shuxian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaoying Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaofei Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaoxuan Fan
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Keshuai Liu
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Yuping Sa
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Gidion Wilson
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Xueqin Ma
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China.
| | - Guoning Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China.
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Zhou H, Yang M, Chen J, Tang Y, Shao J, Wang Z, Zhao C. Phenolic Glycosides from Viburnum chinshanense Leaves and their α-Amylase and α-Glucosidase Inhibitory Activity. Chem Biodivers 2024; 21:e202400236. [PMID: 38380697 DOI: 10.1002/cbdv.202400236] [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: 01/28/2024] [Revised: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 02/22/2024]
Abstract
The phytochemical investigation of Viburnum chinshanense leaves led to the isolation and identification of four new phenolic glycosides, viburninsides A-D (1-4), and eight known analogues (5-12). The structures of the four undescribed compounds were determined by spectroscopic techniques, including 1D NMR, 2D NMR, and HRESIMS, and their containing sugar units were confirmed by acid hydrolysis and HPLC analysis of the monosaccharide's chiral derivatives. Additionally, the α-amylase and α-glucosidase inhibitory activities of the isolated compounds were assessed. Compounds 1, 2, 4, 9, and 10 exhibited potential inhibitory activities against α-amylase and α-glucosidase with IC50 values ranging from 35.07 μM to 47.42 μM and 18.27 μM to 43.65 μM, respectively. Molecular docking analysis of compound 4 with the strongest inhibition against the target enzymes was also conducted.
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Affiliation(s)
- Hongjuan Zhou
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
| | - Mengya Yang
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
| | - Jia Chen
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
| | - Yiyuan Tang
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
| | - Jianhua Shao
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
| | - Zihan Wang
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
| | - Chunchao Zhao
- Joint International Research Laboratory of Agriculture &, Agri-Product Safety of Ministry of Education of China, Yangzhou University, 225009, Yangzhou, China
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Zhang J, Niu P, Li M, Wang Y, Ma Y, Wang P. Phytochemical Profiling and Biological Activities of Pericarps and Seeds Reveal the Controversy on "Enucleation" or "Nucleus-Retaining" of Cornus officinalis Fruits. Molecules 2024; 29:1473. [PMID: 38611753 PMCID: PMC11012811 DOI: 10.3390/molecules29071473] [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: 01/30/2024] [Revised: 03/12/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
The fruits of Cornus officinalis are used not only as a popular health food to tonify the liver and kidney, but also as staple materials to treat dementia and other age-related diseases. The pharmacological function of C. officinalis fruits with or without seeds is controversial for treating some symptoms in a few herbal prescriptions. However, the related metabolite and pharmacological information between its pericarps and seeds are largely deficient. Here, comparative metabolomics analysis between C. officinalis pericarps and seeds were conducted using an ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry, and therapeutic effects were also evaluated using several in vitro bioactivity arrays (antioxidant activity, α-glucosidase and cholinesterase inhibitory activities, and cell inhibitory properties). A total of 499 secondary metabolites were identified. Thereinto, 77 metabolites were determined as key differential metabolites between C. officinalis pericarps and seeds, and the flavonoid biosynthesis pathway was identified as the most significantly different pathway. Further, 47 metabolites were determined as potential bioactive constituents. In summary, C. officinalis seeds, which demonstrated higher contents in total phenolics, stronger in vitro antioxidant activities, better α-glucosidase and butyrylcholinesterase inhibitory activities, and stronger anticancer activities, exhibited considerable potential for food and health fields. This work provided insight into the metabolites and bioactivities of C. officinalis pericarps and seeds, contributing to their precise development and utilization.
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Affiliation(s)
- Jinyi Zhang
- School of Mechanical Engineering, Chongqing Three Gorges University, Chongqing 404100, China;
| | - Po Niu
- School of Mechanical Engineering, Chongqing Three Gorges University, Chongqing 404100, China;
| | - Mingjie Li
- Biological Laboratory, HBN Research Institute, Shenzhen Hujia Technology Co., Ltd., Shenzhen 518000, China;
| | - Yuan Wang
- Biological Laboratory, HBN Research Institute, Shenzhen Hujia Technology Co., Ltd., Shenzhen 518000, China;
| | - Yao Ma
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China;
- Henan Funiu Mountain Biological and Ecological Environment Observatory, Nanyang 474550, China
| | - Pan Wang
- Sichuan Academy of Agricultural Machinery Science, Chengdu 610066, China;
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Gan X, Peng B, Chen L, Jiang Y, Li T, Li B, Liu X. Identification of Xanthine Oxidase Inhibitors from Celery Seeds Using Affinity Ultrafiltration-Liquid Chromatography-Mass Spectrometry. Molecules 2023; 28:6048. [PMID: 37630301 PMCID: PMC10458824 DOI: 10.3390/molecules28166048] [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: 05/20/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Celery seeds have been used as an effective dietary supplement to manage hyperuricemia and diminish gout recurrence. Xanthine oxidase (XOD), the critical enzyme responsible for uric acid production, represents the most promising target for anti-hyperuricemia in clinical practice. In this study, we aimed to establish a method based on affinity ultrafiltration-liquid chromatography-mass spectrometry (UF-LC-MS) to directly and rapidly identify the bioactive compounds contributing to the XOD-inhibitory effects of celery seed crude extracts. Chemical profiling of celery seed extracts was performed using UPLC-TOF/MS. The structure was elucidated by matching the multistage fragment ion data to the database and publications of high-resolution natural product mass spectrometry. Thirty-two compounds, including fourteen flavonoids and six phenylpeptides, were identified from celery seed extracts. UF-LC-MS showed that luteolin-7-O-apinosyl glucoside, luteolin-7-O-glucoside, luteolin-7-O-malonyl apinoside, luteolin-7-O-6'-malonyl glucoside, luteolin, apigenin, and chrysoeriol were potential binding compounds of XOD. A further enzyme activity assay demonstrated that celery seed extract (IC50 = 1.98 mg/mL), luteolin-7-O-apinosyl glucoside (IC50 = 3140.51 μmol/L), luteolin-7-O-glucoside (IC50 = 975.83 μmol/L), luteolin-7-O-6'-malonyl glucoside (IC50 = 2018.37 μmol/L), luteolin (IC50 = 69.23 μmol/L), apigenin (IC50 = 92.56 μmol/L), and chrysoeriol (IC50 = 40.52 μmol/L) could dose-dependently inhibit XOD activities. This study highlighted UF-LC-MS as a useful platform for screening novel XOD inhibitors and revealed the chemical basis of celery seed as an anti-gout dietary supplement.
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Affiliation(s)
- Xiaona Gan
- Nutrilite Health Institute, Amway (China) R&D Center, Shanghai 201203, China; (X.G.); (B.P.); (L.C.); (T.L.)
| | - Bo Peng
- Nutrilite Health Institute, Amway (China) R&D Center, Shanghai 201203, China; (X.G.); (B.P.); (L.C.); (T.L.)
| | - Liang Chen
- Nutrilite Health Institute, Amway (China) R&D Center, Shanghai 201203, China; (X.G.); (B.P.); (L.C.); (T.L.)
| | - Yanjun Jiang
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong SAR, China;
- Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Tingzhao Li
- Nutrilite Health Institute, Amway (China) R&D Center, Shanghai 201203, China; (X.G.); (B.P.); (L.C.); (T.L.)
| | - Bo Li
- Nutrilite Health Institute, Amway (China) R&D Center, Shanghai 201203, China; (X.G.); (B.P.); (L.C.); (T.L.)
| | - Xiaodong Liu
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong SAR, China;
- Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
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Xie L, Huang J, Xiong T, Ma Y. Secondary Metabolomic Analysis and In Vitro Bioactivity Evaluation of Stems Provide a Comprehensive Comparison between Dendrobium chrysotoxum and Dendrobium thyrsiflorum. Molecules 2023; 28:6039. [PMID: 37630293 PMCID: PMC10458425 DOI: 10.3390/molecules28166039] [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: 07/18/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
The stems of Dendrobium chrysotoxum (DC) are commonly used as health-promoting foods due to their excellent biological activities. However, the stems of D. thyrsiflorum (DT) are often used to meet the scarcity of DC in production because of their highly similar morphology. However, the related metabolomic and bioactive information on the stems of DC and DT are largely deficient. Here, secondary metabolites of DC and DT stems were identified using an ultra-performance liquid chromatography-electrospray ionization-mass spectrometry, and their health-promoting functions were evaluated using several in vitro arrays. A total of 490 metabolites were identified in two stems, and 274 were significantly different. We screened out 10 key metabolites to discriminate the two species, and 36 metabolites were determined as health-promoting constituents. In summary, DT stems with higher extract yield, higher total phenolics and flavonoids, and stronger in vitro antioxidant activities demonstrated considerable potential in food and health fields.
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Affiliation(s)
- Lihang Xie
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China; (L.X.); (T.X.)
| | - Jinyong Huang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China;
- Henan Funiu Mountain Biological and Ecological Environment Observatory, Nanyang 473000, China
| | - Tingjian Xiong
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China; (L.X.); (T.X.)
| | - Yao Ma
- Henan Funiu Mountain Biological and Ecological Environment Observatory, Nanyang 473000, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
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Li S, Hou W, Li Y, Liu Z, Yun H, Liu Q, Niu H, Liu C, Zhang Y. Modeling and optimization of the protocol of complex chromatography separation of cyclooxygenase-2 inhibitors from Ganoderma lucidum spore. PHYTOCHEMICAL ANALYSIS : PCA 2023; 34:431-442. [PMID: 36958357 DOI: 10.1002/pca.3224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 02/20/2023] [Accepted: 03/08/2023] [Indexed: 06/03/2023]
Abstract
INTRODUCTION The spores of the medicinal fungus Ganoderma lucidum possess hepatoprotective properties. The main components, triterpenes, are particularly beneficial, making the screening and preparation of active triterpenes from Ganoderma lucidum significant. OBJECTIVES We aimed to screen and verify cyclooxygenase-2 inhibitors from G. lucidum spores, establish a rapid online hyphenated technique for the preparation of active ingredients, and analyze the structures of the active ingredients. METHODS Ultrafiltration LC combined with an enzyme inhibition assay and molecular docking was employed to screen and evaluate cyclooxygenase-2 ligands, which were prepared by pressurized liquid extraction coupled online with countercurrent chromatography and semi-preparative LC. The structures of the compounds were identified by nuclear magnetic resonance spectroscopy. RESULTS Six cyclooxygenase-2 inhibitors, namely, ganoderic acids I, C2 , G, B, and A and ganoderenic acid A, were screened and evaluated. They were prepared using the online hyphenated technique, following which their structures were identified. CONCLUSION This study provides opportunities for the discovery and development of new therapeutic drugs from other natural resources, as the present instrumental setup achieved efficient and systematic extraction and isolation of natural products compared with reference separation methods, thus exhibiting significant potential for industrial applications.
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Affiliation(s)
- Sainan Li
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Wanchao Hou
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Yanjie Li
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Zhen Liu
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Haocheng Yun
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Qiang Liu
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Huazhou Niu
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, Changchun, China
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Wang R, Fan R, Meng T, Wang L. Exploration of the inhibitory mechanisms of trans-polydatin/resveratrol on α-glucosidase by multi-spectroscopic analysis, in silico docking and molecular dynamics simulation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122866. [PMID: 37201332 DOI: 10.1016/j.saa.2023.122866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/11/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023]
Abstract
Plant-derived phenolics as natural α-glucosidase (α-GLU) inhibitors have attached great attention in the treatment of type-II diabetes mellitus currently. In this study, trans-polydatin and its aglycone resveratrol were found to show a notable inhibitory activity on α-GLU in a mixed-type manner with IC50 values of 18.07 and 16.73 μg/mL, respectively, which were further stronger than anti-diabetic drug acrabose (IC50 = 179.86 μg/mL). Multi-spectroscopic analysis results indicated that polydatin/resveratrol bound to α-GLU with one affinity binding site which was mainly driven by hydrogen bonds and van der Waals forces, and this binding process resulted in conformational alteration of α-GLU. In silico docking study showed that polydatin/resveratrol can well interact with the surrounding amino acid residues in the active cavity of α-GLU. Molecular dynamics simulation further clarified the structure and characterization of α-GLU-polydatin/resveratrol complexes. This study might supply a theoretical basis for the designing of novel functional foods with polydatin/resveratrol.
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Affiliation(s)
- Ruimin Wang
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China
| | - Ruyan Fan
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China
| | - Tingyu Meng
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China
| | - Lu Wang
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Hainan University, Haikou 570228, PR China.
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Han L, Wang H, Cao J, Li Y, Jin X, He C, Wang M. Inhibition mechanism of α-glucosidase inhibitors screened from Tartary buckwheat and synergistic effect with acarbose. Food Chem 2023; 420:136102. [PMID: 37060666 DOI: 10.1016/j.foodchem.2023.136102] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/01/2023] [Accepted: 03/31/2023] [Indexed: 04/17/2023]
Abstract
Tartary buckwheat has been shown to provide a good antihyperglycemic effect. However, it is unclear which active compounds play a key role in attenuating postprandial hyperglycemia. Presently, acetone extract from the hull of Tartary buckwheat had the best effect for α-glucosidase inhibition (IC50 = 0.02 mg/mL). Twelve potential α-glucosidase inhibitors from Tartary buckwheat were screened and identified by the combination of ultrafiltration and high-performance liquid chromatography coupled with mass spectrometry. Myricetin and quercetin exhibited the highest anti-α-glucosidase activity with IC50 values of 0.02 and 0.06 mg/mL, respectively. These inhibitors manifested different types of inhibition manners against α-glucosidase via direct interaction with the amino acid residues. The results of structure-activity relationships indicated that an increase in the number of -OH on the B-ring greatly strengthened α-glucosidase inhibitory activity, but glucoside and rutinoside replacement on the C-ring obviously weakened this influence. Furthermore, a synergistic effect was observed between inhibitors with different inhibition manners.
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Affiliation(s)
- Lin Han
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Huiqing Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Junwei Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Yunlong Li
- Institute of Functional Food of Shanxi, Shanxi Agricultural University, Taiyuan 030006, PR China
| | - Xiying Jin
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Caian He
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China.
| | - Min Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China.
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Guo P, Liu C, Zhong F, Xu M, Zhao Y, Xu X, Zhao Y, Xue W, Xu Y, Fan D. Dummy-template Pickering emulsion imprinted microspheres online pretreatment and analysis for the estrogens in cosmetics. J Chromatogr A 2023; 1691:463815. [PMID: 36709550 DOI: 10.1016/j.chroma.2023.463815] [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: 12/16/2022] [Revised: 01/08/2023] [Accepted: 01/20/2023] [Indexed: 01/23/2023]
Abstract
Estrogens are a class of steroid hormone with strong physiological activity. Due to the pronounced beauty effect, such drugs are highly susceptible to illegal addition and cause other adverse effects. To avoid template leakage and the negative impacts on the environment caused by the estrogens, diosgenin was selected as the dummy template due to its similar skeleton structure. The Pickering emulsion polymerization was used to obtain the dummy-template molecularly imprinted polymers (dt-MIPs). Scanning electron microscopy, optical microscopy, specific surface area testing, Fourier transform infrared spectroscopy and adsorption experiments were used to characterize the apparent morphology and the recognition performance of the microspheres. Then, the prepared microspheres and commercial fillers were used to construct an on-line solid phase extraction (on-line SPE) analytical system coupled with HPLC via a two-position switching valve. On-line solid phase extraction-HPLC analytical methods were established and verified, for the simultaneous determination of four estrogens in cosmetic samples. The accuracy and precision RSDs for the established methods using the imprinted sorbents were 92.00-104.02% and less than 9.12%, respectively. All four estrogens exhibited good linearity in the range of 0.05 to 5 µg/mL with a coefficient of determination R2 greater than 0.9810. The method comparison results suggest that the established analytical method is simple in pre-treatment, easy to automate, and has excellent sensitivity to meet the analytical requirements of complex samples.
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Affiliation(s)
- Pengqi Guo
- School of Chemical Engineering, Northwest University, Xi'an, PR China; "Four Subjects One United" Biopesticide University-Enterprise Joint Engineering Technology Research Center of Shaanxi Province, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China.
| | - Chenming Liu
- School of Chemical Engineering, Northwest University, Xi'an, PR China; "Four Subjects One United" Biopesticide University-Enterprise Joint Engineering Technology Research Center of Shaanxi Province, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China
| | - Fanru Zhong
- School of Chemical Engineering, Northwest University, Xi'an, PR China; "Four Subjects One United" Biopesticide University-Enterprise Joint Engineering Technology Research Center of Shaanxi Province, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China
| | - Mingyang Xu
- School of Chemical Engineering, Northwest University, Xi'an, PR China; "Four Subjects One United" Biopesticide University-Enterprise Joint Engineering Technology Research Center of Shaanxi Province, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China
| | - Yongze Zhao
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Xinya Xu
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, PR China
| | - Yu Zhao
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Weiming Xue
- School of Chemical Engineering, Northwest University, Xi'an, PR China; "Four Subjects One United" Biopesticide University-Enterprise Joint Engineering Technology Research Center of Shaanxi Province, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China
| | - Ying Xu
- School of Chemical Engineering, Northwest University, Xi'an, PR China; "Four Subjects One United" Biopesticide University-Enterprise Joint Engineering Technology Research Center of Shaanxi Province, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China
| | - Daidi Fan
- School of Chemical Engineering, Northwest University, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China.
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11
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Zhou H, Zhang X, Li B, Yue R. Fast and efficient identification of hyaluronidase specific inhibitors from Chrysanthemum morifolium Ramat. using UF-LC-MS technique and their anti-inflammation effect in macrophages. Heliyon 2023; 9:e13709. [PMID: 36852058 PMCID: PMC9957760 DOI: 10.1016/j.heliyon.2023.e13709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
The purpose of the study was to establish a rapid analytical strategy to screen potential anti-inflammatory compounds from Flos Chrysanthemum flower. The enzyme assay was conducted to prescreen botanical extracts, in which Chrysanthemum morifolium aqueous extract (CME) displayed hyaluronidase (HAase) inhibitory activity in a dose-dependent manner with the values of 8.31, 24.25, and 66.51% at concentrations of 1.00, 2.00, and 4 0.00 mg/mL, respectively. Eight potential compounds targeting HAase (compounds 9, 10, 11, 13, 15, 17, 20 and 21) from CME were screened using ultrafiltration affinity liquid chromatography coupled with mass spectrometry (UF-LC-MS) technology. The well-known inhibitor, dipotassium glycyrrhizinate (DG), was used as a positive control and competitive ligand to eliminate false positives. Then, four of these potential components (compounds 9, 10, 17, and 21), namely eriodictyol-7-O-glucoside, luteoloside, apigenin-7-O-glucoside and diosmetin-7-O-glucoside, were distinguished as potent HAase specific inhibitor candidates with high BD and CBD values. The enzyme inhibitory activities of candidate compounds were verified using enzyme inhibition assay. At a concentration of 1000 μM, compounds 9, 10, 17, and 21 showed 40.15, 44.85, 18.04, and 24.15% inhibition of HAase, respectively. Furthermore, all the four compounds significantly decreased the production of nitric oxide (NO) and IL-6, and significantly suppressed the mRNA expression of inducible NO synthase (iNOS) and IL-1β in both murine and human macrophages.
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Affiliation(s)
- Huiji Zhou
- Amway (Shanghai) Science and Technology Development Co., Ltd, Shanghai, 201203, Shanghai, China
| | - Xue Zhang
- Amway (Shanghai) Science and Technology Development Co., Ltd, Shanghai, 201203, Shanghai, China
| | - Bo Li
- Amway (Shanghai) Science and Technology Development Co., Ltd, Shanghai, 201203, Shanghai, China.,Amway (China) Botanical R&D Center, Wuxi, 214145, China
| | - Rongcai Yue
- School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China.,Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Fujian Medical University, Fuzhou, 350122, Fujian, China
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12
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Identification of a novel α-glucosidase inhibitor from Melastoma dodecandrum Lour. fruits and its effect on regulating postprandial blood glucose. Food Chem 2023; 399:133999. [PMID: 36037688 DOI: 10.1016/j.foodchem.2022.133999] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 12/22/2022]
Abstract
Melastoma dodecandrum Lour. (MDL) extracts have shown potent α-glucosidase inhibitory activity, suggesting MDL might be a good source of α-glucosidase inhibitors. The aim of the study was to identify compounds in MDL extracts with α-glucosidase inhibitory activities and evaluate their effect on postprandial blood glucose as well as elucidating the underlying mechanisms of inhibition. A total of 34 polyphenols were identified in MDL fruits, among which 10 anthocyanins and three proanthocyanidin derivatives were discovered for the first time. Dosing mice with MDL extracts (100 mg/kg body weight, by gavage) was associated with a significantly decrease in postprandial blood glucose concentrations after oral administration of maltose. The most potent α-glucosidase inhibitor was identified as casuarictin (IC50 of 0.21 μg/mL). Casuarictin bound competitively to α-glucosidase, occupying not only the catalytic site but also forming strong hydrogen bonds with α-glucosidase residues. Therefore, casuarictin derived from MDL fruits might be used as novel α-glucosidase inhibitor in functional foods or other dietary products.
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13
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Chmiel M, Stompor-Gorący M. The Spectrum of Pharmacological Actions of Syringetin and Its Natural Derivatives-A Summary Review. Nutrients 2022; 14:nu14235157. [PMID: 36501187 PMCID: PMC9739508 DOI: 10.3390/nu14235157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Mono- and poly-O-methylated flavonols and their glycoside derivatives belong to the group of natural plant polyphenols with a wide spectrum of pharmacological activities. These compounds are known for their antioxidant, antimutagenic, hepatoprotective, antidiabetic, and antilipogenic properties. Additionally, they inhibit carcinogenesis and cancer development. Having in mind the multidirectional biological activity of methylated flavonols, we would like to support further study on their health-promoting activities; in this review we summarized the most recent reports on syringetin and some of its structural analogues: laricitrin, ayanin, and isorhamnetin. Natural sources and biological potential of these substances were described based on the latest research papers.
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14
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Liu R, Zhang Y, Li S, Liu C, Zhuang S, Zhou X, Li Y, Liang J. Receptor-ligand affinity-based screening and isolation of water-soluble 5-lipoxygenase inhibitors from Phellinus igniarius. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1209:123415. [PMID: 35973282 DOI: 10.1016/j.jchromb.2022.123415] [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: 05/17/2022] [Revised: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 11/18/2022]
Abstract
We developed an efficient combination method for extraction, biological activity screening, and preparation of 5-lipoxygenase inhibitors from Phellinus igniarius. 5-Lipoxygenase inhibitors were rapidly screened using ultrafiltration-liquid chromatography based on the receptor-ligand affinity. Parameters such as extraction time, extraction times, and temperature as well as liquid-solid ratio were optimized using response surface methodology to maximize the total yield of the three target compounds. Next, bioactive ingredients were isolated using high-speed countercurrent chromatography and semi-preparative liquid chromatography. Three active ingredients, phellibaumin E, protocatechuic aldehyde, and osmundacetone, were obtained via ultrafiltration-liquid chromatography. Subsequently, the potential anti-dementia effects of the obtained bioactive compounds were verified using molecular docking assays. The above-mentioned target compounds, with purities of 98.82%, 98.89%, and 99.51%, respectively, were separated using a two-phase solvent system consisting of n-hexane-ethyl acetate-ethanol-water (2.5:2:0.75:3, v/v/v/v) coupled with semi-preparative liquid chromatography.
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Affiliation(s)
- Ruoyao Liu
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China.
| | - Sainan Li
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China.
| | - Siyuan Zhuang
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
| | - Xu Zhou
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
| | - Yanjie Li
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
| | - Jiaqi Liang
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
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15
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Cheng L, Wang F, Cao Y, Cai G, Wei Q, Shi S, Guo Y. Screening of potent α-glucosidase inhibitory and antioxidant polyphenols in Prunella vulgaris L. by bioreaction-HPLC-quadrupole-time-of-flight-MS/MS and in silico analysis. J Sep Sci 2022; 45:3393-3403. [PMID: 35819998 DOI: 10.1002/jssc.202200374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 11/11/2022]
Abstract
Prunella vulgaris L. is a well-known traditional Chinese medicine for blood glucose homeostasis and antioxidant potential. Ethyl acetate fraction of P. vulgaris L. demonstrated higher phenolic content (85.53 ± 6.74 mg gallic acid equivalents per gram dry weight), α-glucosidase inhibitory (IC50 , 69.13 ± 2.86 μg/mL), and antioxidant (IC50 , 8.68 ± 1.01 μg/mL) activities. However, the bioactive polyphenols responsible for the beneficial properties remain unclear. Here, bioreaction-HPLC-quadrupole-time-of-flight-MS/MS method was developed for rapid, accurate, and efficient screening and identification of polyphenols with α-glucosidase inhibitory and antioxidant activities from P. vulgaris L. Bioactive polyphenols can specifically bind with α-glucosidase or react with 1,1-diphenyl-2-picryl-hydrazyl radical, which was easily discriminated from nonactive compounds. Subsequently, twenty bioactive polyphenols (sixteen phenyl propionic acid derivatives and four flavonoids) were screened and identified. Furthermore, molecular docking analysis revealed that screened twenty polyphenols bind with the active sites of α-glucosidase through hydrogen bonding and π-π stacking. Density functional theory calculations demonstrated their electron transport ability and chemical reactivity. The in silico analysis confirmed the screened results. In summary, this study provided a valuable strategy for rapid discovering bioactive compounds from complex natural products, and offered scientific evidence for further development and application of P. vulgaris L. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Li Cheng
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine under Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, P. R. China.,College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Fang Wang
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine under Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, P. R. China
| | - Yuanxin Cao
- Natural Product Research Laboratory, Guangxi Baise High-tech Development Zone, Baise, 533612, P. R. China
| | - Guihan Cai
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Qisheng Wei
- Natural Product Research Laboratory, Guangxi Baise High-tech Development Zone, Baise, 533612, P. R. China
| | - Shuyun Shi
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine under Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, P. R. China.,College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China.,Natural Product Research Laboratory, Guangxi Baise High-tech Development Zone, Baise, 533612, P. R. China
| | - Ying Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
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16
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Wang Z, Zhang Y, Yan H. In situ net fishing of α-glucosidase inhibitors from evening primrose ( Oenothera biennis) defatted seeds by combination of LC-MS/MS, molecular networking, affinity-based ultrafiltration, and molecular docking. Food Funct 2022; 13:2545-2558. [PMID: 35165681 DOI: 10.1039/d1fo03975j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Defatted seeds of evening primrose (DSEP), the by-product of evening primrose oil manufacture, exhibit potential α-glucosidase inhibitory activity; however, presently they are routinely discarded as waste. In this study, an in situ net fishing strategy was proposed for rapid recognition of α-glucosidase inhibitors from DSEP. Firstly, the DSEP extraction method was optimized employing a response surface methodology for the recovery of α-glucosidase inhibitors, just like "finding a good fishery before net fishing". Then, molecular networks of DSEP were generated by GNPS-based molecular networking after LC-MS/MS analysis, just like "casting tight nets in the fishery". Subsequently, affinity-based ultrafiltration was carried out for fishing the "hit" together with its structural analogues according to the molecular networks, just like "hauling the specific net fishing". Finally, molecular docking analysis was performed to rapidly verify α-glucosidase inhibitory activities of the potential bioactive components and predict their inhibition mechanisms. In the results, DSEP displayed significant inhibitory effects against yeast and rat intestinal α-glucosidase, and the results of an oral starch tolerance test suggested that DSEP showed postprandial blood-glucose-lowering activity. Moreover, 1-galloyl-glucose, gallic acid, methyl gallate, 1,6-digalloyl-β-D-glucose, and 1,3,6-trigalloylglucose were rapidly identified as potential α-glucosidase inhibitors present in DSEP.
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Affiliation(s)
- Zhiqiang Wang
- Key Laboratory of Public Health Safety of Hebei Province, School of Public Health, Hebei University, Baoding, 071002, China.
| | - Yuxian Zhang
- Key Laboratory of Public Health Safety of Hebei Province, School of Public Health, Hebei University, Baoding, 071002, China.
| | - Hongyuan Yan
- Key Laboratory of Public Health Safety of Hebei Province, School of Public Health, Hebei University, Baoding, 071002, China.
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei University, Baoding, 071002, China
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