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Yang Y, Qian Z, Wu C, Cheng Y, Yang B, Shao J, Zhao J, Zhu X, Jia X, Feng L. Differential absorption and metabolic characteristics of organic acid components in pudilan xiaoyan oral liquid between young rats and adult rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 334:118528. [PMID: 38972526 DOI: 10.1016/j.jep.2024.118528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/01/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pudilan Xiaoyan Oral Liquid (PDL) is a proprietary Chinese medicinal preparation approved by the State for treating acute pharyngitis in both adults and children (Approval No. Z20030095). It is worth noting that children exhibit unique physiopathological characteristics compared to adults. However, the in vivo regulatory characteristics of PDL in treating acute pharyngitis in children remain incompletely understood. AIM OF THE STUDY The differential absorption and metabolism characteristics of the main pharmacological components in PDL in young and adult rats were investigated with a view to providing a reference for preclinical data of PDL in medication for children. MATERIALS AND METHODS This study utilized UPLC-Q-TOF-MS to investigate the pharmacodynamic material basis of PDL. The focus was on the gastrointestinal digestion and absorption characteristics of organic acid components in PDL (PDL-OAC), known as the primary pharmacodynamic components in this formulation. The research combined in vitro dynamic simulation and a Quadruple single-pass intestinal perfusion model to examine these characteristics. The permeability properties of PDL-OAC were evaluated using an artificial parallel membrane model. Additionally, an acute pharyngitis model was established to evaluate the histopathological condition of the pharynx in young rats using H&E staining. The levels of IL-1β, TNF-α, IL-6, and IL-10 in blood and pharyngeal tissue homogenates of young rats were quantified using ELISA kits. RESULTS A total of 91 components were identified in PDL, including 33 organic acids, 24 flavonoids, 14 alkaloids, 5 terpenoids and coumarins, 3 sugars, and 12 amino acids. The PDL-OAC exhibited a significant reduction in IL-1β, TNF-α, IL-6, and IL-10 levels in the pharyngeal tissues of young rats with acute pharyngitis. Results from dynamic simulation studies of gastrointestinal fluids revealed that the PDL-OAC (Specifically chlorogenic acid (CGA), gallic acid (GA), chicoric acid (CRA), and caffeic acid (CA)) were effectively stabilized in the gastrointestinal fluids of both children and adults in vitro. Young rats, characterized by thinner intestinal walls and higher permeability, efficiently absorbed the four organic acids across the entire intestinal segment. The absorption of CGA, GA, and CRA followed a concentration-dependent pattern, with CGA and GA absorption being influenced by exocytosis. CONCLUSION The efficacy of the PDL-OAC in treating acute pharyngitis was demonstrated in young rats. The absorption rate of these components was observed to be faster in young rats compared to adult rats, underscoring the need for dedicated studies on the drug's usage in children. This research provides valuable insights for the appropriate clinical use of PDL in pediatric patients.
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Affiliation(s)
- Yanjun Yang
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Zhouyang Qian
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Chenhui Wu
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Yue Cheng
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Bing Yang
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Jianguo Shao
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing, 225400, PR China.
| | - Jing Zhao
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing, 225400, PR China.
| | - Xiangjun Zhu
- Jiangsu Health Development Research Center, National Health and Family Planning Commission Contraceptives Adverse Reaction Surveillance Center, Nanjing, 210036, PR China.
| | - Xiaobin Jia
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Liang Feng
- School of Traditional Chinese Pharmacy, Innovation Center for Industry-Education Integration of Pediatrics and Traditional Chinese Medicine, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, PR China.
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Ding K, Sun E, Huang R, Heng W, Li X, Liu J, Zhao J, Li C, Feng L, Jia X. Integrated metabolome-microbiome analysis investigates the different regulations of Pudilan Xiaoyan oral liquid in young rats with acute pharyngitis compared to adult rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 120:155037. [PMID: 37611464 DOI: 10.1016/j.phymed.2023.155037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/21/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023]
Abstract
BACKGROUND Pudilan Xiaoyan Oral Liquid (PDL) is a famous traditional Chinese prescription recorded in the Chinese Pharmacopeia, which is widely used to treat inflammatory diseases of the respiratory tract in children and adults. However, the endogenous changes in children and adults with PDL in the treatment of acute pharyngitis remain unclear. PURPOSE The differential regulatory roles of PDL in endogenous metabolism and gut microbes in young and adult rats were investigated with a view to providing a preclinical data reference for PDL in medication for children. METHODS An acute pharyngitis model was established, and serum levels of inflammatory factors and histopathology were measured. This study simulated the growth and development of children in young rats and explored the endogenous metabolic characteristics and intestinal microbial composition after the intervention of PDL by using serum metabolomic technique and 16S rRNA high-throughput sequencing technique. RESULTS The results showed that PDL had therapeutic effects on young and adult rats with acute pharyngitis. Sixteen biomarkers were identified by metabolomics in the serum of young rats and 23 in adult rats. PDL can also affect intestinal microbial diversity and community richness in young and adult rats. Alloprevotella, Allobaculum, Alistipes, Bifidobacterium, and Enterorhabdus were prominent bacteria in young rats. Bacteria from the phylum Firmicutes of the adult rats changed more significantly under the treatment of PDL. In young rats, amino acid metabolism was the primary regulatory mode of PDL, whereas, in adult rats, glycerophospholipid metabolism was studied. CONCLUSION The regulation of PDL on the serum metabolite group and intestinal microflora in young rats was different from that in adult rats, indicating the necessity of an independent study on children's medication. PDL may also exert therapeutic effects on young and adult rats by regulating gut microbial homeostasis. The results support the clinical application of PDL.
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Affiliation(s)
- Ke Ding
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - E Sun
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
| | - Ran Huang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Wangqin Heng
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Xuan Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Jun Liu
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Jing Zhao
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Chao Li
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Liang Feng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaobin Jia
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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Alnusaire T, Sabouni IL, Khojah H, Qasim S, Al-Sanea MM, Siddique S, Mokhtar FA, Ahmed SR. Integrating Chemical Profiling, In Vivo Study, and Network Pharmacology to Explore the Anti-inflammatory Effect of Pterocarpus dalbergioides Fruits and Its Correlation with the Major Phytoconstituents. ACS OMEGA 2023; 8:32544-32554. [PMID: 37720803 PMCID: PMC10500659 DOI: 10.1021/acsomega.3c02940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/15/2023] [Indexed: 09/19/2023]
Abstract
The purpose of this study is to explore the anti-inflammatory activity of Pterocarpus dalbergioides fruit extract (PFE) and the underlying mechanism. Chemical profiling using ultraperformance liquid chromatography/mass spectrometry identified 28 compounds in PFE (12 flavonoids, 5 fatty acids, 4 phenolic compounds, 3 alkaloids, 2 sesquiterpenes, and 2 xanthophylls). PFE (2 g/kg) significantly inhibited carrageenan-induced rat paw edema after 4 h of administration (42% inhibition). A network-based strategy and molecular docking studies were utilized to uncover the anti-inflammatory mechanism. Out of the identified compounds, 16 compounds with DL ≥ 0.18 and F ≥ 30% were selected using bioavailability (F) and drug-likeness (DL) metrics. The network analysis revealed that 90 genes are considered key targets for the selected compounds and linked to the anti-inflammatory effect. Among all compounds, linoleic acid was found to be the top-most active constituent as it targets maximum genes. Four targets (TNF, IL6, AKT1, and CCL2) among the top 10 genes were found to be the main target genes that may contribute to the anti-inflammatory potential of PFE. Furthermore, KEGG (Kyoto encyclopedia of genes and genomes) pathway analysis revealed that PFE might regulate inflammation through five pathways: neuroactive ligand-receptor interaction, lipid and atherosclerosis, fluid shear stress and atherosclerosis, TNF signaling pathway, and rheumatoid arthritis. The docking study predicted the significant binding affinity between the top four active constituents (linoleic acid, 9-octadecenoic acid, 11,12,13-trihydroxy-9-octadecenoic acid, and rhamnetin-3-O-rhamnoside) and the selected target proteins (TNF and AKT1). The findings highlight PFE as a promising drug lead for controlling inflammation.
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Affiliation(s)
| | | | - Hanan Khojah
- Department
of Pharmacognosy, College of Pharmacy, Jouf
University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Sumera Qasim
- Pharmacology
Department, College of Pharmacy, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Mohammad M. Al-Sanea
- Pharmaceutical
Chemistry Department, College of Pharmacy, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Sadaf Siddique
- Department
of Pharmacognosy, College of Pharmacy, Jouf
University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Fatma Alzahraa Mokhtar
- Department
of Pharmacognosy, Faculty of Pharmacy, El
Saleheya El Gadida University, El Saleheya El Gadida, Sharkia 44813, Egypt
| | - Shaimaa R. Ahmed
- Department
of Pharmacognosy, College of Pharmacy, Jouf
University, Sakaka, Aljouf 72341, Saudi Arabia
- Department
of Pharmacognosy, Faculty of Pharmacy, Cairo
University, Kasr el-Aini
street, Cairo 11562, Egypt
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Fang Z, Li X, Lei S, Feng S, Zhou C, Tong X, Han R. Protective effects of Pudilan Tablets against osteoarthritis in mice induced by monosodium iodoacetate. Sci Rep 2023; 13:2760. [PMID: 36797333 PMCID: PMC9935914 DOI: 10.1038/s41598-023-29976-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
Osteoarthritis (OA) is a complicated disorder that is the most prevalent chronic degenerative joint disease nowadays. Pudilan Tablets (PDL) is a prominent traditional Chinese medicine formula used in clinical settings to treat chronic inflammatory illnesses. However, there is currently minimal fundamental research on PDL in the therapy of joint diseases. As a result, this study looked at the anti-inflammatory and anti-OA properties of PDL in vitro and in vivo, as well as the mechanism of PDL in the treatment of OA. We investigated the anti-OA properties of PDL in OA mice that were generated by monosodium iodoacetate (MIA). All animals were administered PDL (2 g/kg or 4 g/kg) or the positive control drug, indomethacin (150 mg/kg), once daily for a total of 28 days starting on the day of MIA injection. The CCK-8 assay was used to test the vitality of PDL-treated RAW264.7 cells in vitro. RAW264.7 cells that had been activated with lipopolysaccharide (LPS) were used to assess the anti-inflammatory properties of PDL. In the MIA-induced OA model mice, PDL reduced pain, decreased OA-induced cartilage damages and degradation, decreased production of pro-inflammatory cytokines in serum, and suppressed IL-1β, IL-6, and TNF-α mRNA expression levels in tibiofemoral joint. In RAW264.7 cells, PDL treatment prevented LPS-induced activation of the ERK/Akt signaling pathway and significantly decreased the levels of inflammatory cytokines, such as IL-1β, IL-6, and TNF-α. In conclusion, these results suggest that PDL is involved in combating the development and progression of OA, exerts a powerful anti-inflammatory effect on the knee joint, and may be a promising candidate for the treatment of OA.
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Affiliation(s)
- Zhizheng Fang
- grid.252251.30000 0004 1757 8247School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - Xiangyu Li
- Department of Research and Development, Anhui Jiren Pharmaceutical Company, Bozhou, 236800 China
| | - Shujun Lei
- grid.252251.30000 0004 1757 8247School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - Shibin Feng
- grid.411389.60000 0004 1760 4804College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036 China
| | - Chenyu Zhou
- grid.252251.30000 0004 1757 8247School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - Xiaohui Tong
- School of Life Sciences, Anhui University of Chinese Medicine, Hefei, 230012, China.
| | - Rongchun Han
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China.
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Xia M, Zhuo N, Ren S, Zhang H, Yang Y, Lei L, Hu T. Enterococcus faecalis rnc gene modulates its susceptibility to disinfection agents: a novel approach against biofilm. BMC Oral Health 2022; 22:416. [PMID: 36127648 PMCID: PMC9490916 DOI: 10.1186/s12903-022-02462-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 09/12/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Enterococcus faecalis (E. faecalis) plays an important role in the failure of root canal treatment and refractory periapical periodontitis. As an important virulence factor of E. faecalis, extracellular polysaccharide (EPS) serves as a matrix to wrap bacteria and form biofilms. The homologous rnc gene, encoding Ribonuclease III, has been reported as a regulator of EPS synthesis. In order to develop novel anti-biofilm targets, we investigated the effects of the rnc gene on the biological characteristics of E. faecalis, and compared the biofilm tolerance towards the typical root canal irrigation agents and traditional Chinese medicine fluid Pudilan. METHODS E. faecalis rnc gene overexpression (rnc+) and low-expression (rnc-) strains were constructed. The growth curves of E. faecalis ATCC29212, rnc+, and rnc- strains were obtained to study the regulatory effect of the rnc gene on E. faecalis. Scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM), and crystal violet staining assays were performed to evaluate the morphology and composition of E. faecalis biofilms. Furthermore, the wild-type and mutant biofilms were treated with 5% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), and Pudilan. The residual viabilities of E. faecalis biofilms were evaluated using crystal violet staining and colony counting assays. RESULTS The results demonstrated that the rnc gene could promote bacterial growth and EPS synthesis, causing the EPS-barren biofilm morphology and low EPS/bacteria ratio. Both the rnc+ and rnc- biofilms showed increased susceptibility to the root canal irrigation agents. The 5% NaOCl group showed the highest biofilm removing effect followed by Pudilan and 2% CHX. The colony counting results showed almost complete removal of bacteria in the 5% NaOCl, 2% CHX, and Chinese medicine agents' groups. CONCLUSIONS This study concluded that the rnc gene could positively regulate bacterial proliferation, EPS synthesis, and biofilm formation in E. faecalis. The rnc mutation caused an increase in the disinfectant sensitivity of biofilm, indicating a potential anti-biofilm target. In addition, Pudilan exhibited an excellent ability to remove E. faecalis biofilm.
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Affiliation(s)
- Mengying Xia
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China
| | - Niya Zhuo
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China
| | - Shirui Ren
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China
| | - Hongyu Zhang
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China
| | - Yingming Yang
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China.
| | - Lei Lei
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China.
| | - Tao Hu
- Department of Preventive Dentistry, West China Hospital of Stomatology, Key Laboratory of Oral Diseases, Sichuan University, NO. 14 Third Section Renmin South Road, Chengdu, China
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Hongzhi D, Xiaoying H, Yujie G, Le C, Yuhuan M, Dahui L, Luqi H. Classic mechanisms and experimental models for the anti‐inflammatory effect of traditional Chinese medicine. Animal Model Exp Med 2022; 5:108-119. [PMID: 35412027 PMCID: PMC9043716 DOI: 10.1002/ame2.12224] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 11/09/2022] Open
Abstract
Inflammation is a common disease involved in the pathogenesis, complications, and sequelae of a large number of related diseases, and therefore considerable research has been directed toward developing anti‐inflammatory drugs for the prevention and treatment of these diseases. Traditional Chinese medicine (TCM) has been used to treat inflammatory and related diseases since ancient times. According to the review of abundant modern scientific researches, it is suggested that TCM exhibit anti‐inflammatory effects at different levels, and via multiple pathways with various targets, and recently a series of in vitro and in vivo anti‐inflammatory models have been developed for anti‐inflammation research in TCM. Currently, the reported classic mechanisms of TCM and experimental models of its anti‐inflammatory effects provide reference points and guidance for further research and development of TCM. Importantly, the research clearly confirms that TCM is now and will continue to be an effective form of treatment for many types of inflammation and inflammation‐related diseases.
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Affiliation(s)
- Du Hongzhi
- National Resource Center for Chinese Materia Medica China Academy of Chinese Medical Sciences Beijing China
- Hubei Provincial Key Laboratory of Traditional Chinese Medicine Resources and Traditional Chinese Medicine Chemistry Hubei University of Chinese Medicine Wuhan China
| | - Hou Xiaoying
- Wuhan Biomedical Research Institute, School of Medicine Jiang Han University Wuhan China
| | - Guo Yujie
- Hubei Provincial Key Laboratory of Traditional Chinese Medicine Resources and Traditional Chinese Medicine Chemistry Hubei University of Chinese Medicine Wuhan China
| | - Chen Le
- Hubei Provincial Key Laboratory of Traditional Chinese Medicine Resources and Traditional Chinese Medicine Chemistry Hubei University of Chinese Medicine Wuhan China
| | - Miao Yuhuan
- Hubei Provincial Key Laboratory of Traditional Chinese Medicine Resources and Traditional Chinese Medicine Chemistry Hubei University of Chinese Medicine Wuhan China
| | - Liu Dahui
- Hubei Provincial Key Laboratory of Traditional Chinese Medicine Resources and Traditional Chinese Medicine Chemistry Hubei University of Chinese Medicine Wuhan China
| | - Huang Luqi
- National Resource Center for Chinese Materia Medica China Academy of Chinese Medical Sciences Beijing China
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