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Song J, Zhao X, Bo J, Lv Z, Li G, Chen Y, Liang J, Zhang C, Jin X, Liu C, Chang J. A polysaccharide from Alhagi honey protects the intestinal barrier and regulates the Nrf2/HO-1-TLR4/MAPK signaling pathway to treat alcoholic liver disease in mice. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117552. [PMID: 38072293 DOI: 10.1016/j.jep.2023.117552] [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: 08/29/2023] [Revised: 11/08/2023] [Accepted: 12/03/2023] [Indexed: 12/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE According to the theory of traditional Chinese medicine, the main factors related to alcoholic liver disease (ALD) are qi stagnation and blood stasis of the five viscera. Previously, we showed that the bioactive components of Alhagi honey have various pharmacological effects in treating liver diseases, but the influence of Alhagi honey on ALD (and its mechanism of action) is not known. AIM OF THE STUDY To determine the efficacy of the main active component of Alhagi honey, the polysaccharide AHPN80, in ALD and to explore the potential mechanism of action. MATERIALS AND METHODS AHPN80 was isolated from dried Alhagi honey and identified by transmission electron microscopy, Fourier-transform infrared spectroscopy, and gas chromatography. Venous blood, liver tissue, and colon tissue were collected in a mouse model of alcohol-induced acute liver injury. Histology, staining (Oil Red O, Alcian Blue-Periodic Acid Schiff) and measurement of reactive oxygen species (ROS) levels were used to detect histopathologic and lipid-accumulation changes in the liver and colon. Lipopolysaccharide (LPS) levels and the content of proinflammatory cytokines in serum were measured by enzyme-linked immunosorbent assays. Commercial kits were employed to detect biochemistry parameters in serum and the liver. A terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining kit was used to identify hepatocyte apoptosis. Expression of tight junction-associated proteins in colon tissues and nuclear factor erythroid 2-related factor 2/heme oxygenase-1/toll-like receptor-4/mitogen-activated protein kinase (Nrf2/HO-1/TLR4/MAPK) pathway-related proteins in liver tissues and HepG2 cells were analyzed by immunofluorescence or western blotting. RESULTS In a mouse model of alcohol-induced acute liver injury, AHPN80 therapy: significantly improved liver parameters (cytochrome P450 2E1, alcohol dehydrogenase, aldehyde dehydrogenase, superoxide dismutase, malondialdehyde, glutathione peroxidase, catalase, total cholesterol, triglycerides, alanine transaminase, aspartate transaminase); reduced serum levels of LPS, interleukin (IL)-1β, IL-6, and tumor necrosis faction-α; increased levels of IL-10 and interferon-gamma. AHPN80 reduced ALD-induced lipid accumulation and ROS production, improved alcohol-induced inflammatory damage to hepatocytes, and inhibited hepatocyte apoptosis. Immunofluorescence staining and western blotting suggested that AHPN80 might eliminate hepatic oxidative stress by activating the Nrf2/HO-1 signaling pathway, repair the intestinal barrier, inhibit the LPS/TLR4/MAPK signaling pathway, and reduce liver inflammation. CONCLUSIONS AHPN80 may activate the Nrf2/HO-1 pathway to eliminate oxidative stress, protect the intestinal barrier, and regulate the TLR4/MAPK pathway to treat ALD in mice. AHPN80 could be a functional food and natural medicine to prevent ALD and its complications.
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Affiliation(s)
- Jianzhong Song
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China; Department of Pharmacy, The Affiliated Tumor Hospital of Xinjiang Medical University Urumqi, 830011, China
| | - Xin Zhao
- Department of Pharmacy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Jiaqiang Bo
- State Key Laboratory of Natural Medicines and School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Zhiyuan Lv
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China
| | - Gairu Li
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China
| | - Yingying Chen
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China
| | - Jiaqi Liang
- State Key Laboratory of Natural Medicines and School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Chunyu Zhang
- State Key Laboratory of Natural Medicines and School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Xiaoyan Jin
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China
| | - Chang Liu
- State Key Laboratory of Natural Medicines and School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China.
| | - Junmin Chang
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China.
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Islam W, Ullah A, Zeng F. Response of total belowground soil biota in Alhagi sparsifolia monoculture at different soil vertical profiles in desert ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:166027. [PMID: 37541502 DOI: 10.1016/j.scitotenv.2023.166027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
The soil organisms are extremely important for the land-based ecosystem. There is a growing interest in studying the variety and composition of the entire underground soil organism community at a large ecological scale. Soil organisms show different patterns in relation to soil physiochemical properties (SPPs) in various ecosystems. However, there is limited knowledge regarding their response to soil vertical profiles (SVPs) in monoculture of Alhagi sparsifolia, which is the primary shrub in the deserts of China, and is well-known for its contributions to sand dune stabilization, traditional Chinese medicine, and forage. Here, we investigated the population dynamics of soil bacteria, fungi, archaea, protists and metazoa across six different SVPs ranging from 0 to 100 cm in monoculture of A. sparsifolia, in its natural desert ecosystem. Our findings indicate that the soil biota communities displayed a declining pattern in the alpha diversity of bacteria, protists, and metazoa with an increase in soil depth. However, the opposite trend was observed for fungi and archaea. The beta diversity of soil biota was significantly affected by SVPs, particularly for metazoa, fungi and protists as revealed by Non-Metric Dimensional Scaling. The most prevalent soil bacterial, fungal, archaeal, protist, and metazoa classes were Actinobacteria, Sordariomycetes, Nitrososphaeria, Filosa-Sarcomonadea, and Nematoda, respectively. The correlation among vertical distribution of the most abundant biotic communities and variations in SPPs exhibited that the variations in total carbon (TC) and total nitrogen (TN) had the most significant influence on bacterial changes, while available potassium (AK) had an impact on fungi. Archaea were affected by TC and pH, protists by the C/N-Ratio and TP, and metazoa by TN, AK, and soil water capacity (SWC). Collectively, our findings provide a new perspective on the vertical distribution and distinct response patterns of soil biota in A. sparsifolia monoculture under natural desert ecosystem of China.
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Affiliation(s)
- Waqar Islam
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Abd Ullah
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fanjiang Zeng
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Vasuki A, Christy HJ, Renugadevi K, Dammalli M. Structure-based pharmacophore modeling and DFT studies of Indian Ocean-derived red algal compounds as PI3Kα inhibitors. Mol Divers 2023:10.1007/s11030-023-10695-7. [PMID: 37466805 DOI: 10.1007/s11030-023-10695-7] [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: 05/23/2022] [Accepted: 06/30/2023] [Indexed: 07/20/2023]
Abstract
Phosphoinositide kinases (PIKs) are a type of lipid kinase that acts as an upstream activator of oncogenic signaling. Presently accessible therapeutic compounds have downsides, such as toxicity and dubious efficacy, as well as lengthy treatment durations, which have bred resistance. Here we attempt to screen the Indian Ocean-derived red algal compounds to be used as a promising lead for PI3Kα inhibitor development. Experimental structure of the PI3K alpha Isoform-Specific Inhibitor alpelisib complex-based pharmacophore model was constructed and used as key to mark off the suitable lead compounds from the pool of marine-derived red algal compounds of Indian Ocean. Besides, the study encompasses pharmacophore scaffold screening as well as physicochemical and pharmacokinetic parameter assessment. We employed molecular docking and molecular dynamics simulation to assess the binding type and stability of 21 red algal derivatives. Twelve compounds demonstrated a sustained binding mode within the PI3Kα binding pocket with an optimal protein backbone root-mean-square deviation, also prompted hydrogen bonding throughout the simulations, and also implies that these MNPs have firmly mediated the interaction with prime hinge region residues in the PI3Kα ATP binding pocket. DFT studies revealed that proposed compounds had the greatest occupied molecular orbital electrophilicity index, basicity, and dipole moment, all of which attributed their stability as well as binding affinity at the PI3Kα active site. Our study's findings revealed that CMNPD31054, CMNPD4798, CMNPD27861, CMNPD4799, CMNPD27860, CMNPD9533, CMNPD3732, CMNPD4221, CMNPD31058, CMNPD31052, CMNPD29281, and CMNPD31055 can be used as lead compounds for PI3KΑ isoform inhibitors design.
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Affiliation(s)
- Archana Vasuki
- Department of Bioinformatics, Sathyabama Institute of Science and Technology, Chennai, India
| | - H Jemmy Christy
- Department of Bioinformatics, Sathyabama Institute of Science and Technology, Chennai, India.
| | - K Renugadevi
- Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai, India
| | - Manjunath Dammalli
- Department of Biotechnology, Siddaganga Institute of Technology, Tumkur, Karnataka, India
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Herrera-Ruiz M, Jiménez-Ferrer E, González-Cortazar M, Zamilpa A, Cardoso-Taketa A, Arenas-Ocampo ML, Jiménez-Aparicio AR, Monterrosas-Brisson N. Potential Use of Agave Genus in Neuroinflammation Management. PLANTS 2022; 11:plants11172208. [PMID: 36079590 PMCID: PMC9460694 DOI: 10.3390/plants11172208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/12/2022] [Accepted: 08/21/2022] [Indexed: 11/16/2022]
Abstract
Agavaceae contains about 480 species, commonly used in the production of alcoholic beverages such as tequila and mezcal, making it a resource of economic and cultural importance. Uses of this plant rely mainly on the stem; other components such as the leaves are discarded, generating agro-industrial waste, despite being a source of bioactive and nutraceutical products. Reports show anti-inflammatory and anti-neuroinflammatory effects of these species, with flavonoids and saponins being mainly responsible. Neuroinflammation is a brain process that plays a key role in the pathogenesis of various neurodegenerative disorders and its effects contribute greatly to mortality and morbidity worldwide. This can be triggered by mechanisms such as glial reactions that lead to the release of inflammatory and oxidative molecules, causing damage to the CNS. Treatments do not cure chronic disease associated with inflammation; they only slow its progression, producing side effects that affect quality of life. Plant-based therapy is promising for treating these diseases. Pharmacological activities have been described for the Agavaceae family; however, their role in neuroinflammation has not been fully investigated, and represents an important target for study. This review synthesizes the existing literature on the biologically active compounds of Agave species that are related in some way to inflammation, which will allow us to propose a line of research with this genus on the forefront to orient experimental designs for treating neuroinflammation and associated diseases.
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Affiliation(s)
- Maribel Herrera-Ruiz
- Centro de Investigación Biomédica del Sur, Instituto Mexicano del Seguro Social (IMSS), Xochitepec 62740, Mexico
| | - Enrique Jiménez-Ferrer
- Centro de Investigación Biomédica del Sur, Instituto Mexicano del Seguro Social (IMSS), Xochitepec 62740, Mexico
| | - Manasés González-Cortazar
- Centro de Investigación Biomédica del Sur, Instituto Mexicano del Seguro Social (IMSS), Xochitepec 62740, Mexico
| | - Alejandro Zamilpa
- Centro de Investigación Biomédica del Sur, Instituto Mexicano del Seguro Social (IMSS), Xochitepec 62740, Mexico
| | - Alexandre Cardoso-Taketa
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos (UAEM), Cuernavaca 62209, Mexico
| | - Martha Lucía Arenas-Ocampo
- Centro de Desarrollo de Productos Bióticos, Instituto Politécnico Nacional (IPN), Yautepec 62739, Mexico
| | | | - Nayeli Monterrosas-Brisson
- Facultad de Ciencias Biológicas, Universidad Autónoma del Estado de Morelos (UAEM), Cuernavaca 62209, Mexico
- Correspondence:
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Mutailifu P, Nuerxiati R, Lu C, Huojiaaihemaiti H, Abuduwaili A, Yili A. Extraction, purification, and characterization of polysaccharides from Alhagi pseudoalhagi with antioxidant and hypoglycemic activities. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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6
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Wang L, Zou H, Xiao X, Wu H, Zhu Y, Li J, Liu X, Shen Q. Abscisic acid inhibited reactive oxygen species-mediated endoplasmic reticulum stress by regulating the PPAR-γ signaling pathway in ARDS mice. Phytother Res 2021; 35:7027-7038. [PMID: 34791723 DOI: 10.1002/ptr.7326] [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: 04/07/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 11/10/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a life-threatening form of a respiratory disorder, and there are few effective therapies. Abscisic acid (ABA) has been proven to be effective in influenza and asthma. Herein, we explored the protective effect of ABA on the resolution of ARDS and the underlying mechanism. Mice were challenged with lipopolysaccharide (LPS) to establish an ARDS model. We found that ABA reduced pulmonary injury, with concomitant suppression of endoplasmic reticulum (ER) stress and reduction of reactive oxygen species (ROS) production. Furthermore, after the elimination of ROS by the specific inhibitor N-acetyl-L-cysteine (NAC), ABA did not further inhibit airway inflammation or ER stress in ARDS mice. In addition, ABA inhibited ROS production through nuclear factor erythroid 2-related factor 2 (Nrf2) activation in parallel with elevated levels of peroxisome proliferator activated receptor γ (PPAR-γ). Furthermore, the addition of a PPAR-γ antagonist abrogated the suppressive action of ABA on inflammation as well as on ER stress and oxidative stress, while NAC restored the protective effect of ABA in ARDS mice treated with a PPAR-γ antagonist. Collectively, ABA protects against LPS-induced lung injury through PPAR-γ signaling, and this effect may be associated with its inhibitory effect on ROS-mediated ER stress.
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Affiliation(s)
- Lixia Wang
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hongyun Zou
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xueying Xiao
- Department of Anesthesiology, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Huimei Wu
- Department of Geriatric Respiratory and Critical Care, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Hefei, China
| | - Yan Zhu
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun Li
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xuesheng Liu
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China
| | - Qiying Shen
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Department of Anesthesiology, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
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7
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Wei F, Yang X, Pang K, Tang H. Traditional Uses, Chemistry, Pharmacology, Toxicology and Quality Control of Alhagi sparsifolia Shap.: A Review. Front Pharmacol 2021; 12:761811. [PMID: 34721046 PMCID: PMC8551495 DOI: 10.3389/fphar.2021.761811] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 09/28/2021] [Indexed: 11/22/2022] Open
Abstract
Alhagi sparsifolia Shap. (Kokyantak) is a ethnic medicine used in the Uyghur traditional medicine system for the treatment of colds, rheumatic pains, diarrhea, stomach pains, headaches, and toothaches, in addition to being an important local source of nectar and high-quality forage grass, and playing a crucial role in improving the ecological environment. Currently, approximately 178 chemical constituents have been identified from A. sparsifolia, including flavonoids, alkaloids, phenolic acids, and 19 polysaccharides. Pharmacological studies have already confirmed that A. sparsifolia has antioxidant, anti-tumor, anti-neuroinflammatory effects, hepatoprotective effects, renoprotective effects and immune regulation. Toxicological tests and quality control studies reveal the safety and nontoxicity of A. sparsifolia. Therefore, this paper systematically summarizes the traditional uses, botany, phytochemistry, pharmacology, quality control and toxicology of A. sparsifolia, in order to provide a beneficial reference of its further research.
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Affiliation(s)
- Feng Wei
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Pharmacy School of Shihezi University, Xinjiang, China
| | - Xinzhou Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Kejian Pang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Pharmacy School of Shihezi University, Xinjiang, China
| | - Hui Tang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Pharmacy School of Shihezi University, Xinjiang, China
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Jiang X, Huang WJ, Li YR, Si J, Xu JD, Qin ED, Yang TG, Liu H, Wu ZH, Jiao PP. The complete chloroplast genome of Alhagi sparsifolia Shap. (Leguminosae). MITOCHONDRIAL DNA PART B-RESOURCES 2021; 6:2128-2130. [PMID: 34263034 PMCID: PMC8253187 DOI: 10.1080/23802359.2021.1944366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Alhagi sparsifolia Shap. is a perennial herbaceous plant belonging to the genus Alhagi, Leguminosae. This species is of high nutritional, medicinal and ecological values. The complete chloroplast genome was 128,418 bp and lost an IR (inverted repeat) region. Further annotation revealed the chloroplast genome contains 108 genes, including 75 protein coding genes, 29 tRNA genes, and 4 rRNA genes. A total of 103 simple sequence repeats (SSRs) were identified in the chloroplast genome. This chloroplast genome resource will be useful for study on the evolution and genetic diversity of A. sparsifolia in the future.
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Affiliation(s)
- Xi Jiang
- College of Plant Science, Tarim University, Alar, China
| | - Wen-Juan Huang
- Xinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science, Tarim University, Alar, China
| | - Ya-Rui Li
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Jie Si
- Foreign Exchange and Cooperation Department, Tarim University, Alar, China
| | - Jing-Dong Xu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Er-Dai Qin
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Tian-Ge Yang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Hong Liu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Zhi-Hua Wu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Pei-Pei Jiao
- Xinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science, Tarim University, Alar, China.,College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
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Ahn J, Chae HS, Pel P, Kim YM, Choi YH, Kim J, Chin YW. Dilignans with a Chromanol Motif Discovered by Molecular Networking from the Stem Barks of Magnolia obovata and Their Proprotein Convertase Subtilisin/Kexin Type 9 Expression Inhibitory Activity. Biomolecules 2021; 11:biom11030463. [PMID: 33808894 PMCID: PMC8003705 DOI: 10.3390/biom11030463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/18/2021] [Accepted: 03/18/2021] [Indexed: 12/11/2022] Open
Abstract
Natural products have been fundamental materials in drug discovery. Traditional strategies for observing natural products with novel structure and/or biological activity are challenging due to large cost and time consumption. Implementation of the MS/MS-based molecular networking strategy with the in silico annotation tool is expected to expedite the dereplication of secondary metabolites. In this study, using this tool, two new dilignans with a 2-phenyl-3-chromanol motif, obovatolins A (1) and B (2), were discovered from the stem barks of Magnolia obovata Thunb. along with six known compounds (3–8), expanding chemical diversity of lignan skeletons in this natural source. Their structures and configurations were elucidated using spectroscopic data. All isolates were evaluated for their PCSK9 mRNA expression inhibitory activity. Obovatolins A (1) and B (2), and magnolol (3) showed potent lipid controlling activities. To identify transcriptionally controlled genes by 1 along with downregulation of PCSK9, using small set of genes (42 genes) related to lipid metabolism selected from the database, focused bioinformatic analysis was carried out. As a result, it showed the correlations between gene expression under presence of 1, which led to detailed insight of the lipid metabolism caused by 1.
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Affiliation(s)
- Jongmin Ahn
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea; (J.A.); (H.-S.C.); (P.P.); (Y.-M.K.); (J.K.)
| | - Hee-Sung Chae
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea; (J.A.); (H.-S.C.); (P.P.); (Y.-M.K.); (J.K.)
| | - Pisey Pel
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea; (J.A.); (H.-S.C.); (P.P.); (Y.-M.K.); (J.K.)
| | - Young-Mi Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea; (J.A.); (H.-S.C.); (P.P.); (Y.-M.K.); (J.K.)
| | - Young Hee Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang 10326, Korea;
| | - Jinwoong Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea; (J.A.); (H.-S.C.); (P.P.); (Y.-M.K.); (J.K.)
| | - Young-Won Chin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea; (J.A.); (H.-S.C.); (P.P.); (Y.-M.K.); (J.K.)
- Correspondence: ; Tel.: +82-2-880-7859
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Ye Z, Li T, Qing D, Sun Y, Chen H, Yu Q, Yan C. Structural elucidation and osteogenic activity of a novel heteropolysaccharide from Alhagi pseudalhagi. Int J Biol Macromol 2021; 171:185-197. [PMID: 33412197 DOI: 10.1016/j.ijbiomac.2020.12.189] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 01/17/2023]
Abstract
Alhagi pseudalhagi, commonly known as camel thorn, is used as an indigenous medicinal plant in China. The present study was designed to elucidate the structure of a novel polysaccharide, APP90-2, isolated from Alhagi pseudalhagi and evaluate its osteogenic activity. A homogeneous polysaccharide (APP90-2) was obtained from A. pseudalhagi via DEAE-52 and Sephacryl S-100 columns, with a molecular weight of 5.9 kDa. Monosaccharide, GC-MS, and NMR analyses showed that APP90-2 consisted of α-l-Rhap-(1→, →3)-α-l-Araf-(1→, →5)-α-l-Araf-(1→, →4)-β-d-Xylp-(1→, α-d-Glcp-(1→, →3,5)-α-l-Araf-(1→, →4)-β-d-GlcAp-(1→, →4)-3-OAc-α-d-Glcp-(1→, →3)-α-d-Galp-(1→, →3)-β-d-GalAp-(1→, →4)-α-d-Galp-(1→, →6)-α-d-Manp-(1→, →4,6)-β-d-Galp-(1→, and →3,6)-β-d-Glcp-(1→ with relative molar ratios of 4.1:1.8:6.1:6.7:1.7:1.0:1.5:2.7:2.4:1.1:2.3:2.6:1.4:2.0. Morphological analyses revealed that APP90-2 interacted with Congo-red and had an obvious honeycomb structure. Additionally, APP90-2 significantly promoted proliferation, differentiation, and mineralization of MC3T3-E1 cells, indicating that APP90-2 exhibited pronounced osteogenic activity. Therefore, our findings suggest that A. pseudalhagi may be used as an alternative medicine or health supplement for the prevention and treatment of osteoporosis.
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Affiliation(s)
- Zhenquan Ye
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Tianyu Li
- School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Degang Qing
- Xinjiang Institute of Chinese Materia Medica and Ethnodrug, Urumqi 830002, China
| | - Yu Sun
- Xinjiang Institute of Chinese Materia Medica and Ethnodrug, Urumqi 830002, China
| | - Haiyun Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qian Yu
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chunyan Yan
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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11
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Subko K, Wang X, Nielsen FH, Isbrandt T, Gotfredsen CH, Ramos MC, Mackenzie T, Vicente F, Genilloud O, Frisvad JC, Larsen TO. Mass Spectrometry Guided Discovery and Design of Novel Asperphenamate Analogs From Penicillium astrolabium Reveals an Extraordinary NRPS Flexibility. Front Microbiol 2021; 11:618730. [PMID: 33519780 PMCID: PMC7843940 DOI: 10.3389/fmicb.2020.618730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 12/17/2020] [Indexed: 12/13/2022] Open
Abstract
Asperphenamate is a small peptide natural product that has gained much interest due to its antitumor activity. In the recent years numerous bioactive synthetic asperphenamate analogs have been reported, whereas only a handful of natural analogs either of microbial or plant origin has been discovered. Herein we describe a UHPLC-HRMS/MS and amino acid supplement approach for discovery and design of novel asperphenamate analogs. Chemical analysis of Penicillium astrolabium, a prolific producer of asperphenamate, revealed three previously described and two novel asperphenamate analogs produced in significant amounts, suggesting a potential for biosynthesis of further asperphenamate analogs by varying the amino acid availability. Subsequent growth on proteogenic and non-proteogenic amino acid enriched media, revealed a series of novel asperphenamate analogs, including single or double amino acid exchange, as well as benzoic acid exchange for nicotinic acid, with the latter observed from a natural source for the first time. In total, 22 new asperphenamate analogs were characterized by HRMS/MS, with one additionally confirmed by isolation and NMR structure elucidation. This study indicates an extraordinary nonribosomal peptide synthetase (NRPS) flexibility based on substrate availability, and therefore the potential for manipulating and designing novel peptide natural products in filamentous fungi.
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Affiliation(s)
- Karolina Subko
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Xinhui Wang
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Frederik H Nielsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Thomas Isbrandt
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | | | | | | | | | | | - Jens C Frisvad
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Thomas O Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
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12
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Malarz J, Michalska K, Stojakowska A. Stem Lettuce and Its Metabolites: Does the Variety Make Any Difference? Foods 2020; 10:E59. [PMID: 33383824 PMCID: PMC7824169 DOI: 10.3390/foods10010059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 12/25/2022] Open
Abstract
The objective of the present study was to characterize chemical composition of hitherto unexamined aerial parts of Lactuca sativa var. angustana cv. Grüner Stern. In contrast to leafy and head varieties of the lettuces, asparagus lettuce grown in Europe is much less studied. Fractionation of a methanolic extract from leaves of L. sativa cv. Grüner Stern, supported with HPLC/DAD and 1H NMR analysis, led to the isolation and/or identification of numerous terpenoid and phenolic compounds, including five apocarotenoids-(-)-loliolide, (+)-dehydrovomifoliol, blumenol A, (6S,9S)-vomifoliol, and corchoionoside C; three sesquiterpene lactones; two lignans-((+)-syringaresinol and its 4-O-β-glucoside); five caffeic acid derivatives; and three flavonoids. Some of the compounds, to the best of our knowledge, have never been isolated from L. sativa before. Moreover, monolignols, phenolic acids and a tryptophan-derived alkaloid were found in the analyzed plant material. Stems, leaves and shoot tips of the asparagus lettuce were examined to assess their phenolics and sesquiterpene lactone content as well as DPPH scavenging activity. Another stem lettuce-L. sativa var. angustana cv. Karola, two cultivars of leafy lettuces and one species of wild lettuce-L. serriola, were also examined as a reference material using HPLC/DAD. The results have been discussed regarding our previous studies and the literature data available.
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Affiliation(s)
| | | | - Anna Stojakowska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Phytochemistry, Smętna Street 12, 31-343 Kraków, Poland; (J.M.); (K.M.)
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13
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Guo T, Zhou D, Yang Y, Zhang X, Chen G, Lin B, Sun Y, Ni H, Liu J, Hou Y, Li N. Bioactive sesquiterpene coumarins from the resin of Ferula sinkiangensis targeted on over-activation of microglia. Bioorg Chem 2020; 104:104338. [PMID: 33142410 DOI: 10.1016/j.bioorg.2020.104338] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 09/18/2020] [Accepted: 09/30/2020] [Indexed: 12/21/2022]
Abstract
Nine undescribed (1-4, 6-10) sesquiterpene coumarins, together with a new natural one (5) and ten known ones (11-20), were isolated from the low polarity fraction of the 95% ethanol extract of the resin of Ferula sinkiangensis. Their structures were elucidated based on the comprehensive analysis of HRESIMS, 1D and 2D NMR data. The absolute configurations were determined by comparison of experimental and calculated ECD spectra. All the identified SCs were evaluated for their anti-neuroinflammatory activities in LPS-induced BV-2 cells. Ferusingensine G (8) displayed a significant inhibitory effect on nitric oxide (NO) production with an IC50 value of 1.2 μM. The results suggested that natural SCs might be served as potential neuroinflammatory inhibitors.
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Affiliation(s)
- Tingting Guo
- School of Traditional Chinese Materia Medica, Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, China
| | - Di Zhou
- School of Traditional Chinese Materia Medica, Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, China
| | - Yanqiu Yang
- College of Life and Health Sciences, Northeastern University, Shenyang 110004, China; State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, China
| | - Xueni Zhang
- School of Traditional Chinese Materia Medica, Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, China
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Sun
- XinJiang Institute of Chinese Materia Medica and Ethnodrug, Urumqi 830002, China
| | - Hui Ni
- XinJiang Institute of Chinese Materia Medica and Ethnodrug, Urumqi 830002, China
| | - Jingyu Liu
- College of Life and Health Sciences, Northeastern University, Shenyang 110004, China; State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, China
| | - Yue Hou
- College of Life and Health Sciences, Northeastern University, Shenyang 110004, China; State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, China.
| | - Ning Li
- School of Traditional Chinese Materia Medica, Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, China.
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14
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Parviz Tavassoli A, Anushiravani M, Hoseini SM, Nikakhtar Z, Naghedi Baghdar H, Ramezani M, Ayati Z, Amiri MS, Sahebkar A, Emami SA. Phytochemistry and therapeutic effects of Alhagi spp. and tarangabin in the Traditional and modern medicine: a review. JOURNAL OF HERBMED PHARMACOLOGY 2020. [DOI: 10.34172/jhp.2020.13] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Alhagi maurorum is one of the species of Alhagi genus producing manna of Tarangabin. Tarangabin is mainly prepared in Iran and Afghanistan. The medicinal properties of Tarangabin and A. maurorum have been mentioned in some major Materia Medica manuscripts in the Islamic era. Tarangabin has various pharmacological properties including antioxidant, anti-inflammatory, antipyretic, diaphoretic, diuretic, expectorant, analgesic and gastrointestinal effects. The purpose of this review is to introduce Alhagi plant and its different species, to present its geographical distribution, and to review its phytochemical and pharmacological properties as well as traditional and folklore applications. Phytochemistry of different parts of Alhagi, such as root, leaf and manna is also explained in details. In addition, temperament and medicinal uses of Tarangabin mentioned in the Islamic traditional medicine (ITM) books are presented. Indeed, sparse clinical research has been done on the medicinal properties of Tarangabin, which calls for future well-designed trials.
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Affiliation(s)
- Amir Parviz Tavassoli
- Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Anushiravani
- Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mousalreza Hoseini
- Department of Gastroenterology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Nikakhtar
- Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamideh Naghedi Baghdar
- Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahin Ramezani
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Ayati
- Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ahmad Emami
- Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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15
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Bai Z, Chen G, Li W, Hou Y, Li N. Natural Inhibitors on Over-Activation of Microglia from Herbals. Chem Pharm Bull (Tokyo) 2019; 67:640-647. [PMID: 31257319 DOI: 10.1248/cpb.c18-00926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Neuroinflammation manifested by over-activation of microglial cells plays an essential role in neurodegenerative diseases. Short-term activation of microglia can be beneficial, but chronically activated microglia can aggravate neuronal dysfunction possibly by secreting potentially cytotoxic substances such as tumor necrosis factor-alpha (TNF-α) and nitric oxide (NO), which can result in dysfunction and death of neurons. Therefore inhibiting over-activation of microglia and the production of cytotoxic intermediates may become an effective therapeutic approach for neuroinflammation. In this paper, we review our continuous research on natural inhibitors of over-activated microglia from traditional herbals, including flavonoids, lignans, sesquiterpene coumarins, and stilbenes.
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Affiliation(s)
- Zisong Bai
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University.,College of Life and Health Sciences, Northeastern University
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University
| | - Yue Hou
- College of Life and Health Sciences, Northeastern University
| | - Ning Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University
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16
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Lam SH, Jian SD, Hwang TL, Chen PJ, Hung HY, Kuo PC, Wu TS. A new dimeric protoberberine alkaloid and other compounds from the tubers of Tinospora dentata. Nat Prod Res 2019; 35:17-24. [PMID: 31135226 DOI: 10.1080/14786419.2019.1611809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A new dimeric quaternary protoberberine alkaloid, bispalmatrubine (1), and thirteen known compounds (2-14) were purified from the tubers of Tinospora dentata. Their structures were determined by spectroscopic and spectrometric analytical methods. Among the isolates, eight compounds were examined for their in vitro anti-inflammatory potential and several tested alkaloids displayed moderate inhibitory effects of N-formyl-methionyl-leucyl-phenylalanine/cytochalasin B (fMLP/CB)-induced superoxide anion generation and elastase release.
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Affiliation(s)
- Sio-Hong Lam
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shu-Duan Jian
- Chuang Song Zong Pharmaceutical Co., LTD, Kaohsiung City, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung, Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung, Taiwan
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17
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Tang Y, Su G, Li N, Li W, Chen G, Chen R, Zhou D, Hou Y. Preventive agents for neurodegenerative diseases from resin of Dracaena cochinchinensis attenuate LPS-induced microglia over-activation. J Nat Med 2018; 73:318-330. [DOI: 10.1007/s11418-018-1266-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 10/05/2018] [Indexed: 12/11/2022]
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18
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Yin ZY, Cheng YF, Wei JK, Luo XK, Luo P, Liu SN, Xu J, Chen H, Gu Q. Chemical constituents from Daphne tangutica and their cytotoxicity against nasopharyngeal carcinoma cells. Fitoterapia 2018; 130:105-111. [DOI: 10.1016/j.fitote.2018.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/22/2018] [Accepted: 08/22/2018] [Indexed: 11/24/2022]
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19
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Song Y, Pan L, Li W, Si Y, Zhou D, Zheng C, Hao X, Jia X, Jia Y, Shi M, Jia X, Li N, Hou Y. Natural neuro-inflammatory inhibitors from Caragana turfanensis. Bioorg Med Chem Lett 2017; 27:4765-4769. [DOI: 10.1016/j.bmcl.2017.08.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/19/2017] [Accepted: 08/22/2017] [Indexed: 12/14/2022]
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