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Yuan X, Wang Z, Peijnenburg WJGM. Molecular characterization and transcriptional response of Lactuca sativa seedlings to co-exposure to graphene nanoplatelets and titanium dioxide nanoparticles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116761. [PMID: 39047370 DOI: 10.1016/j.ecoenv.2024.116761] [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: 04/24/2024] [Revised: 07/14/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
The widespread use of nanomaterials in agriculture may introduce multiple engineered nanoparticles (ENPs) into the environment, posing a combined risk to crops. However, the precise molecular mechanisms explaining how plant tissues respond to mixtures of individual ENPs remain unclear, despite indications that their combined toxicity differs from the summed toxicity of the individual ENPs. Here, we used a variety of methods including physicochemical, biochemical, and transcriptional analyses to examine the combined effects of graphene nanoplatelets (GNPs) and titanium dioxide nanoparticles (TiO2 NPs) on hydroponically exposed lettuce (Lactuca sativa) seedlings. Results indicated that the presence of GNPs facilitated the accumulation of Ti as TiO2 NPs in the seedling roots. Combined exposure to GNPs and TiO2 NPs caused less severe oxidative damage in the roots compared to individual exposures. Yet, GNPs and TiO2 NPs alone and in combination did not cause oxidative damage in the shoots. RNA sequencing data showed that the mixture of GNPs and TiO2 NPs led to a higher number of differentially expressed genes (DEGs) in the seedlings compared to exposure to the individual ENPs. Moreover, the majority of the DEGs encoding superoxide dismutase displayed heightened expression levels in the seedlings exposed to the combination of GNPs and TiO2 NPs. The level of gene ontology (GO) enrichment in the seedlings exposed to the mixture of GNPs and TiO2 NPs was found to be greater than the level of GO enrichment observed after exposure to isolated GNPs or TiO2 NPs. Furthermore, the signaling pathways, specifically the "MAPK signaling pathway-plant" and "phenylpropanoid biosynthesis," exhibited a close association with oxidative stress. This study has provided valuable insights into the molecular mechanisms underlying plant resistance against multiple ENPs.
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Affiliation(s)
- Xuancheng Yuan
- School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing 210044, PR China
| | - Zhuang Wang
- School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing 210044, PR China.
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, Leiden 2300 RA, the Netherlands; Centre for Safety of Substances and Products, National Institute of Public Health and the Environment (RIVM), Bilthoven 3720 BA, the Netherlands
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Jia A, Shi Y, Zhang Y, Diao Y, Chang B, Jiang M, Liu W, Qiu Z, Fu C, Qiu Y. Butanol Extract of Acanthopanax senticosus (Rupr. et Maxim.) Harms Alleviates Atherosclerosis in Apolipoprotein E-Deficient Mice Fed a High-Fat Diet. Chem Biodivers 2023; 20:e202200949. [PMID: 36869005 DOI: 10.1002/cbdv.202200949] [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: 10/05/2022] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/05/2023]
Abstract
This study investigated the effect of butanol extract of AS (ASBUE) on atherosclerosis in apolipoprotein E-deficient (ApoE-/-) mice. The mice were administered ASBUE (390 or 130 mg/kg/day) or rosuvastatin (RSV) via oral gavage for eight weeks. In ApoE-/- mice, ASBUE suppressed the abnormal body weight gain and improved serum and liver biochemical indicators. ASBUE remarkably reduced the aortic plaque area, improved liver pathological conditions, and lipid metabolism abnormalities, and altered the intestinal microbiota structure in ApoE-/- mice. In the vascular tissue of ASBUE-treated mice, P-IKKβ, P-NFκB, and P-IκBα levels tended to decrease, while IκB-α increased in high fat-diet-fed atherosclerotic mice. These findings demonstrated the anti-atherosclerotic potential of ASBUE, which is mediated by the interaction between the gut microbiota and lipid metabolism and regulated via the Nuclear Factor-kappa B (NF-κB) pathway. This work paves the groundwork for subsequent studies to develop innovative drugs to treat atherosclerosis.
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Affiliation(s)
- Ailing Jia
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China.,Pharmacy College of, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yuwen Shi
- Pharmacy College of, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yuhang Zhang
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Yuanyuan Diao
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Baijin Chang
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Mengcheng Jiang
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Weipeng Liu
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Zhidong Qiu
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Chaomei Fu
- Pharmacy College of, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ye Qiu
- Pharmacy College of, Changchun University of Chinese Medicine, Changchun, 130117, China
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Astudillo‐Sánchez PD, Enrique J. Soriano‐Castillo MS, Manzanilla B, Rocha‐Ortiz G, Trujano‐Ortiz LG, Matus MH, Domínguez Z, Salas‐Reyes M. Electrochemical Oxidation of Symmetrical Antioxidant Chicoric Acid in DMSO: Is this a Sequential or a Simultaneous 2ECE Mechanism? ChemistrySelect 2021. [DOI: 10.1002/slct.202101952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pablo D. Astudillo‐Sánchez
- Departamento de Ciencias Básicas y Aplicadas del Centro Universitario de Tonalá Universidad de Guadalajara Av. Nuevo Periférico 555, Ejido San José Tatepozco C.P. 45425 Tonalá, Jalisco México
| | - M. S. Enrique J. Soriano‐Castillo
- Instituto de Química Aplicada Universidad Veracruzana Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, A.P. 575 Xalapa, Ver. 91190 México
| | - Brenda Manzanilla
- Instituto de Química Aplicada Universidad Veracruzana Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, A.P. 575 Xalapa, Ver. 91190 México
| | - Gilberto Rocha‐Ortiz
- Departamento de Ciencias Básicas y Aplicadas del Centro Universitario de Tonalá Universidad de Guadalajara Av. Nuevo Periférico 555, Ejido San José Tatepozco C.P. 45425 Tonalá, Jalisco México
| | - Lidia G. Trujano‐Ortiz
- Departamento de Ciencias Básicas y Aplicadas del Centro Universitario de Tonalá Universidad de Guadalajara Av. Nuevo Periférico 555, Ejido San José Tatepozco C.P. 45425 Tonalá, Jalisco México
| | - Myrna H. Matus
- Instituto de Química Aplicada Universidad Veracruzana Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, A.P. 575 Xalapa, Ver. 91190 México
| | - Zaira Domínguez
- Instituto de Química Aplicada Universidad Veracruzana Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, A.P. 575 Xalapa, Ver. 91190 México
| | - Magali Salas‐Reyes
- Instituto de Química Aplicada Universidad Veracruzana Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, A.P. 575 Xalapa, Ver. 91190 México
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Baygildieva DI, Braun AV, Stavrianidi AN, Rodin IA. Determination of Eleutheroside B and Eleutheroside E in Extracts from Eleutherococcus senticosus by Liquid Chromatography/Mass Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820140051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nipun TS, Khatib A, Ibrahim Z, Ahmed QU, Redzwan IE, Saiman MZ, Supandi F, Primaharinastiti R, El-Seedi HR. Characterization of α-Glucosidase Inhibitors from Psychotria malayana Jack Leaves Extract Using LC-MS-Based Multivariate Data Analysis and In-Silico Molecular Docking. Molecules 2020; 25:molecules25245885. [PMID: 33322801 PMCID: PMC7763559 DOI: 10.3390/molecules25245885] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 01/15/2023] Open
Abstract
Psychotria malayana Jack has traditionally been used to treat diabetes. Despite its potential, the scientific proof in relation to this plant is still lacking. Thus, the present study aimed to investigate the α-glucosidase inhibitors in P.malayana leaf extracts using a metabolomics approach and to elucidate the ligand–protein interactions through in silico techniques. The plant leaves were extracted with methanol and water at five various ratios (100, 75, 50, 25 and 0% v/v; water–methanol). Each extract was tested for α-glucosidase inhibition, followed by analysis using liquid chromatography tandem to mass spectrometry. The data were further subjected to multivariate data analysis by means of an orthogonal partial least square in order to correlate the chemical profile and the bioactivity. The loading plots revealed that the m/z signals correspond to the activity of α-glucosidase inhibitors, which led to the identification of three putative bioactive compounds, namely 5′-hydroxymethyl-1′-(1, 2, 3, 9-tetrahydro-pyrrolo (2, 1-b) quinazolin-1-yl)-heptan-1′-one (1), α-terpinyl-β-glucoside (2), and machaeridiol-A (3). Molecular docking of the identified inhibitors was performed using Auto Dock Vina software against the crystal structure of Saccharomyces cerevisiae isomaltase (Protein Data Bank code: 3A4A). Four hydrogen bonds were detected in the docked complex, involving several residues, namely ASP352, ARG213, ARG442, GLU277, GLN279, HIE280, and GLU411. Compound 1, 2, and 3 showed binding affinity values of −8.3, −7.6, and −10.0 kcal/mol, respectively, which indicate the good binding ability of the compounds towards the enzyme when compared to that of quercetin, a known α-glucosidase inhibitor. The three identified compounds that showed potential binding affinity towards the enzymatic protein in molecular docking interactions could be the bioactive compounds associated with the traditional use of this plant.
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Affiliation(s)
- Tanzina Sharmin Nipun
- Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia; (T.S.N.); (Z.I.); (Q.U.A.); (I.E.R.)
- Department of Pharmacy, Faculty of Biological Sciences, University of Chittagong, Chittagong 4331, Bangladesh
| | - Alfi Khatib
- Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia; (T.S.N.); (Z.I.); (Q.U.A.); (I.E.R.)
- Faculty of Pharmacy, Airlangga University, Surabaya 60155, Indonesia;
- Correspondence: (A.K.); (M.Z.S.)
| | - Zalikha Ibrahim
- Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia; (T.S.N.); (Z.I.); (Q.U.A.); (I.E.R.)
| | - Qamar Uddin Ahmed
- Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia; (T.S.N.); (Z.I.); (Q.U.A.); (I.E.R.)
| | - Irna Elina Redzwan
- Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia; (T.S.N.); (Z.I.); (Q.U.A.); (I.E.R.)
| | - Mohd Zuwairi Saiman
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
- Center for Research in Biotechnology for Agriculture (CEBAR), Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: (A.K.); (M.Z.S.)
| | - Farahaniza Supandi
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | | | - Hesham R. El-Seedi
- Pharmacognosy Group, Department of Pharmaceutical Biosciences, BMC, Uppsala University, SE-751 23 Uppsala, Sweden;
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
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Hu HB, Liang HP, Li HM, Yuan RN, Sun J, Zhang LL, Han MH, Wu Y. Phytochemical and chemotaxonomic investigations on Acanthopanax leucorrhizus Harms. BIOCHEM SYST ECOL 2018. [DOI: 10.1016/j.bse.2018.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Acanthopanax versus 3-Methyladenine Ameliorates Sodium Taurocholate-Induced Severe Acute Pancreatitis by Inhibiting the Autophagic Pathway in Rats. Mediators Inflamm 2016; 2016:8369704. [PMID: 28115794 PMCID: PMC5225378 DOI: 10.1155/2016/8369704] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 11/19/2016] [Accepted: 12/05/2016] [Indexed: 12/29/2022] Open
Abstract
Objectives. To observe the therapeutic effects of Acanthopanax and 3-methyladenine against severe acute pancreatitis (SAP). Methods. Sodium taurocholate-induced SAP rats were equally randomized into a SAP group, an Acanthopanax group, and a 3-methyladenine group. Serum amylase levels were determined by ELISA; protein and mRNA expression levels of nucleus nuclear factor kappa B (NF-κB) p65, light chain 3II (LC3-II), and Beclin-1 and mRNA expression levels of Class III phosphatidylinositol 3-kinase (PI3K-III) in pancreas tissue were detected by Western blot and quantitative real-time PCR, respectively; mortality and pathological change of the pancreas were observed at 3, 12, and 24 h after operation. Results. There was no significant difference in mortality between SAP group and both treatment groups (P > 0.05). Serum amylase levels, protein, and mRNA expression levels of nucleus NF-κB p65, LC3-II, and Beclin-1 protein, mRNA expression levels of PI3K-III, and pathological score of the pancreas in both treatment groups were significantly lower than those in SAP group at 12 and 24 h after operation (P < 0.05 or 0.01). The number of autophagosomes and autophagolysosomes of pancreatic acinar cells in both treatment groups was smaller than that in SAP group at 12 and 24 h. Conclusions. Acanthopanax and 3-methyladenine had similar therapeutic effects against SAP in rats. The mechanism may be through inhibiting abnormal autophagy activation of pancreatic acinar cells.
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Zhang X, Zhou X, Liu X, Li X, Whang W. Development and Application of an HPLC-UV Procedure to Determine Multiple Flavonoids and Phenolics in Acanthopanax Leaf Extracts. J Chromatogr Sci 2015; 54:574-82. [PMID: 26711585 DOI: 10.1093/chromsci/bmv189] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Indexed: 11/15/2022]
Abstract
Acanthopanax species are used in traditional medicine to treat numerous diseases. A simultaneous high-performance liquid chromatography (HPLC) method was developed and validated for the determination of the flavonoid and phenolic content of Acanthopanax leaves. HPLC analysis was performed on an AKZO NOBEL Kromasil 100-5C18 column (250 × 4.6 mm, 5 µm) using a gradient elution of acetonitrile-water containing 0.2% formic acid with a flow rate of 1.0 mL/min, monitored at 320 nm. The method was linear over the range 1-500 µg/mL (determination coefficients R(2) > 0.999). Satisfactory intraday and interday precision was achieved, with the relative standard deviation (RSD) <2.99%. The mean recoveries measured at the three concentrations were in the range of 90.11-104.83%, with RSD <2.91% for the targets. Twenty-four samples of Acanthopanax leaves from different species and locations were examined using this analytical method, and their chemical profiles provided information for the chemotaxonomic investigation. The established method is simple, rapid and reliable for the quality control of Acanthopanax leaves of various species from different collections. The complete phenolic and flavonoid profiles of Acanthopanax leaves of various species have been established.
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Affiliation(s)
- Xiaodan Zhang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Xinqi Zhou
- Focused Photonics (Hangzhou), Inc., Hangzhou, China
| | - Xiangqian Liu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Xiaolong Li
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - Wankyunn Whang
- Pharmaceutical Resources Botany Laboratory, Chung-Ang University, Seoul, Korea
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Silchenko AS, Kalinovsky AI, Ponomarenko LP, Avilov SA, Andryjaschenko PV, Dmitrenok PS, Gorovoy PG, Kim NY, Stonik VA. Structures of eremophilane-type sesquiterpene glucosides, alticolosides A-G, from the Far Eastern endemic Ligularia alticola Worosch. PHYTOCHEMISTRY 2015; 111:169-176. [PMID: 25481409 DOI: 10.1016/j.phytochem.2014.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 10/29/2014] [Accepted: 11/03/2014] [Indexed: 06/04/2023]
Abstract
Seven eremophilane-type sesquiterpene glucosides, alticolosides A-G, have been isolated from aerial parts of the endemic Far Eastern species Ligularia alticola Worosch. (Family Asteraceae) along with two known compounds, monoterpenoid glycoside (4S)-α-terpineol 8-O-β-D-glucopyranoside and norditerpenoid glycoside 7(8)-dihydro-β-ionone 3-O-β-D-glucopyranoside. Alticoloside D was identified with the earlier known 8-O-(β-D-glucopyranosyl)-2-oxo-eremophila-1(10),8,11-triene, but the stereostructure of the latter was revised on the basis of ROESY and CD data. All the glycosides are derivatives of new eremophilane-type aglycones, differing from known eremophilanes in details of planar and/or stereo structures except for the aglycone of alticoloside E.
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Affiliation(s)
- Alexandra S Silchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation.
| | - Anatoly I Kalinovsky
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Ludmila P Ponomarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Sergey A Avilov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Pelageya V Andryjaschenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Pavel S Dmitrenok
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Peter G Gorovoy
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Natalia Yu Kim
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Pr. 100-letya Vladivostoka 159, 690022 Vladivostok, Russian Federation
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Protective effects of Acanthopanax vs. Ulinastatin against severe acute pancreatitis-induced brain injury in rats. Int Immunopharmacol 2015; 24:285-298. [DOI: 10.1016/j.intimp.2014.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 12/08/2014] [Accepted: 12/09/2014] [Indexed: 12/20/2022]
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Sun YN, Li W, Yan XT, Yang SY, Kim YH. Chemical constituents from the stems of Acanthopanax divaricatus var. albeofructus. BIOCHEM SYST ECOL 2014. [DOI: 10.1016/j.bse.2014.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sánchez A, Martínez-Mora O, Martínez-Benavidez E, Hernández J, Domínguez Z, Salas-Reyes M. Electrochemical behaviour of new dimeric esters and amides derived from caffeic acid in dimethylsulfoxide. Org Biomol Chem 2014; 12:5981-9. [DOI: 10.1039/c4ob00823e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang XD, Liu XQ, Kim YH, Whang WK. Chemical constituents and their acetyl cholinesterase inhibitory and antioxidant activities from leaves of Acanthopanax henryi: potential complementary source against Alzheimer’s disease. Arch Pharm Res 2013; 37:606-16. [DOI: 10.1007/s12272-013-0252-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 09/13/2013] [Indexed: 11/30/2022]
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Li YP, Li YH, Zhong JD, Li RT. Antioxidant phenolic glycoside and flavonoids from Pieris japonica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2013; 15:875-879. [PMID: 23796053 DOI: 10.1080/10286020.2013.803475] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new phenolic glycoside, benzyl 2-hydroxy-4-O-β-D-glucopyranosyl-benzoate (1), along with nine known flavonoids, epicatechin-(2 → O → 7,4 → 8)-ent-epicatechin (2), bis-8,8'-catechinylmethane (3), quercetin (4), quercetin-3-O-α-L-arabinfuranoside (5), quercetin-3-O-α-L-rhamnopyranoside (6), astilbin (7), engeletin (8), (2S,3R)-ent-catechin (9), and 2',4-dihydroxy-4'-methoxy-6'-O-β-D-glucopyranosyl dihydrochalcone (10), was isolated from the flowers of Pieris japonica. Their structures were elucidated on the basis of MS, 1D NMR, and 2D NMR techniques. This paper describes the isolation, structural elucidation as well as in vitro antioxidant activity of these compounds.
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Affiliation(s)
- Yan-Ping Li
- a Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming , 650500 , China
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