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Aboul Naser AF, El-Feky AM, Hamed MA. Mitigating Effect of Lepidium sativum Seeds Oil on Ovarian Oxidative Stress, DNA Abnormality and Hormonal Disturbances Induced by Acrylamide in Rats. Chem Biodivers 2024; 21:e202400062. [PMID: 38743868 DOI: 10.1002/cbdv.202400062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/26/2024] [Accepted: 05/14/2024] [Indexed: 05/16/2024]
Abstract
Acrylamide (ACR), an industrial compound, causes both male and female reproductive toxicity. Lepidium sativum seeds (L. sativum) (Garden cress) are known for their health benefits as antioxidant, antiasthmatic, anticoagulant, anti-inflammatory, and analgesic agents. Therefore, this study aimed to investigate the phytochemistry and nutritional value of L. sativum seeds oil for attenuating the ovarian damage induced by acrylamide in rats. The phytochemical investigation of the seeds revealed the presence of vitamins, potassium, iron, sugar and amino acids. Twenty eight compounds from the unsaponifiable fraction and twenty three compounds from the saponifiable fraction were identified. Three sterols and two triterpenes were isolated and identified as β-sitosterol (1), ▵5-avenasterol (2), friedelanol (3), stigmasta-4, 22-dien-3-one (4), and ursolic acid (5). Treatment of acrylamide-induced rats with L. sativum seeds oil ameliorated prolactin (PRL), progesterone (P4), estradiol (E2), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), nitric oxide (NO), interleukin-6 (IL-6), and tumor necrosis factor alpha (TNF- α) with variable degrees. The histopathological findings of ovaries supported these results. In conclusion, compounds (3-5) were isolated for the first time from L. sativum seeds oil. The seeds oil attenuated the ovarian damage and could potentially be a new supplemental agent against female infertility.
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Affiliation(s)
- Asmaa F Aboul Naser
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Amal M El-Feky
- Pharmacognosy Department, National Research Centre, Dokki, Giza, Egypt
| | - Manal A Hamed
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
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Alhawarri MB, Dianita R, Rawa MSA, Nogawa T, Wahab HA. Potential Anti-Cholinesterase Activity of Bioactive Compounds Extracted from Cassia grandis L.f. and Cassia timoriensis DC. PLANTS (BASEL, SWITZERLAND) 2023; 12:344. [PMID: 36679057 PMCID: PMC9862305 DOI: 10.3390/plants12020344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 06/17/2023]
Abstract
Acetylcholinesterase (AChE) inhibitors remain the primary therapeutic drug that can alleviate Alzheimer's disease's (AD) symptoms. Several Cassia species have been shown to exert significant anti-AChE activity, which can be an alternative remedy for AD. Cassia timoriensis and Cassia grandis are potential plants with anti-AChE activity, but their phytochemical investigation is yet to be further conducted. The aims of this study were to identify the phytoconstituents of C. timoriensis and C. grandis and evaluate their inhibitory activity against AChE and butyrylcholinesterase (BChE). Two compounds were isolated for the first time from C. timoriensis: arachidyl arachidate (1) and luteolin (2). Five compounds were identified from C. grandis: β-sitosterol (3), stigmasterol (4), cinnamic acid (5), 4-hydroxycinnamic acid (6), and hydroxymethylfurfural (7). Compound 2 showed significant inhibition towards AChE (IC50: 20.47 ± 1.10 µM) and BChE (IC50: 46.15 ± 2.20 µM), followed by 5 (IC50: 40.5 ± 1.28 and 373.1 ± 16.4 µM) and 6 (IC50: 43.4 ± 0.61 and 409.17 ± 14.80 µM) against AChE and BChE, respectively. The other compounds exhibited poor to slightly moderate AChE inhibitory activity. Molecular docking revealed that 2 showed good binding affinity towards TcAChE (PDB ID: 1W6R) and HsBChE (PDB ID: 4BDS). It formed a hydrogen bond with TYR121 at the peripheral anionic site (PAS, 2.04 Å), along with hydrophobic interactions with the anionic site and PAS (TRP84 and TYR121, respectively). Additionally, 2 formed three H-bonds with the binding site residues: one bond with catalytic triad, HIS438 at distance 2.05 Å, and the other two H-bonds with GLY115 and GLU197 at distances of 2.74 Å and 2.19 Å, respectively. The evidence of molecular interactions of 2 may justify the relevance of C. timoriensis as a cholinesterase inhibitor, having more promising activity than C. grandis.
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Affiliation(s)
- Maram B. Alhawarri
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Malaysia
- Faculty of Pharmacy, Jadara University, Irbid 21110, Jordan
| | - Roza Dianita
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Malaysia
| | - Mira Syahfriena Amir Rawa
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Malaysia
- USM-RIKEN Interdisciplinary Collaboration for Advanced Sciences (URICAS), Universiti Sains Malaysia, Gelugor 11800, Malaysia
| | - Toshihiko Nogawa
- USM-RIKEN Interdisciplinary Collaboration for Advanced Sciences (URICAS), Universiti Sains Malaysia, Gelugor 11800, Malaysia
- Molecular Structure Characterization Unit, Technology Platform Division, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Habibah A. Wahab
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Malaysia
- USM-RIKEN Interdisciplinary Collaboration for Advanced Sciences (URICAS), Universiti Sains Malaysia, Gelugor 11800, Malaysia
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3
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Phytochemical Investigation and Antimicrobial Potential of Medicinal Plant Nepeta distans Royle ex Benth. J FOOD QUALITY 2022. [DOI: 10.1155/2022/8386326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herbal medicines or natural products and plant extract may exhibit promising alternatives or supplements for chemotherapy and antibiotic therapy. The aim of the study is to evaluate the therapeutic value and phytoconstituents of the whole plant, Nepeta distans. The methanol extract contains four known compounds, namely, oleanolic acid, ursolic acid, β-sitosterol, and stigmasterol. The structures of these compounds were confirmed with the help of NMR and mass spectrometry and by comparison with the available literature of these known compounds. The phytochemical analysis test confirmed the presence of alkaloids, flavonoids, saponins, glycosides, fats, proteins, and phytosterols. The antimicrobial activities were carried out by the agar well diffusion method. Both methanol extract and chloroform fraction showed significant antimicrobial activities.
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Gálvez Romero JL, Parada Sosa CM, Burgoa GL, Lorenzo Leal AC, El Kassis EG, Bautista Rodríguez E, Paredes Juárez GA, Hernández LR, Bach H, Juárez ZN. Antimycobacterial, cytotoxic, and anti-inflammatory activities of Artemisialudoviciana. JOURNAL OF ETHNOPHARMACOLOGY 2022; 293:115249. [PMID: 35395382 DOI: 10.1016/j.jep.2022.115249] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/17/2022] [Accepted: 03/28/2022] [Indexed: 05/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE A third part of the world population has been exposed to the pathogen Mycobacterium tuberculosis, the etiological agent of tuberculosis (TB). TB is a deadly disease, and its treatment has been hampered because of the lack of new antibiotics or the development of new antimycobacterial agents against this pathogen. The situation is aggravated because of the appearance of multidrug-resistant strains. In Mexican traditional medicine, records showed Artemisia ludoviciana for the treatment of TB. Thus, the combination of antibiotics and plant extracts might represent new antimycobacterial agents as an attractive alternative. MATERIALS AND METHODS The biological activities of ethanol extract obtained from A. ludoviciana were evaluated for its antimycobacterial activities using an M. tuberculosis clinical isolate. Also, the toxicity of the extracts was assessed ex vivo and in vivo using the human-derived macrophages cell line (THP-1) and the Artemia spp. model, respectively. Lastly, the inflammatory response of macrophages exposed to the extracts was also evaluated. RESULTS The ethanol extract of A. ludoviciana showed antimycobacterial activity with a MIC of 250 μg/mL against a clinical strain of M. tuberculosis. Ex vivo cytotoxicity using the THP-1 cell line incubated with the ethanol extract showed an IC50 of 20 μg/mL. On the other hand, the Artemia model's toxicity test showed moderate toxicity when the A. ludoviciana extract was tested with LC50 of 195.64 μg/mL. Analysis of the inflammatory response of THP-1 cells exposed to the same extract showed no increase in secreted interleukine-6 and -10. Also, no effect was observed in the pro-inflammatory tumor necrosis factor-α cytokine level. Moreover, a chemical profile of the extracts identified achillin as the major component in the ethanol extract, along with other minor components such as thujone and stigmasterol. CONCLUSIONS We showed that the ethanol extract of A. ludoviciana possessed antimycobacterial activity and could potentially be used to supplement the antibiotic treatment of TB.
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Affiliation(s)
- José Luis Gálvez Romero
- Biotechnology Faculty, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, 72410, Puebla, Mexico
| | - Carla Michelle Parada Sosa
- Biotechnology Faculty, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, 72410, Puebla, Mexico
| | - Griselda León Burgoa
- Mycobacteria Area, Public Health Laboratory and Health Services of the State of Puebla, Antiguo camino a Guadalupe Hidalgo No. 11350, Col. Agua Santa, 72480, Puebla, Mexico
| | - Ana Cecilia Lorenzo Leal
- Division of Infectious Disease, Department of Medicine, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada
| | - Elie Girgis El Kassis
- Biotechnology Faculty, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, 72410, Puebla, Mexico
| | - Elizabeth Bautista Rodríguez
- Biotechnology Faculty, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, 72410, Puebla, Mexico
| | - Genaro Alberto Paredes Juárez
- Biology Area, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, 72410, Puebla, Puebla, Mexico
| | - Luis Ricardo Hernández
- Department of Chemical Biological Sciences, Universidad de las Américas Puebla, Ex Hacienda Sta. Catarina Mártir S/N, San Andrés Cholula, 72810, Mexico
| | - Horacio Bach
- Division of Infectious Disease, Department of Medicine, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada.
| | - Zaida Nelly Juárez
- Chemistry Area, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, 72410, Puebla, Puebla, Mexico.
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Computational and biological efficacy of stigmasterol against HeLa cells and Vero cells- first time isolated from the ethanolic extract of Annonamuricata Linn leaves. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Feunaing RT, Tamfu AN, Ntchapda F, Gade IS, Mbane MN, Tagatsing MF, Talla E, Henoumont C, Laurent S, Dinica RM. A new abietane-type diterpenoid from roots of Burkea africana Hook (Fabaceae) with α-amylase inhibitory potential. Nat Prod Res 2021; 36:4132-4139. [PMID: 34542365 DOI: 10.1080/14786419.2021.1976176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A new abietane-type diterpenoid, rubesanolidic acid (1), alongside six known compounds including β-sitosterol (2), lupeol (3), betulinic acid (4) ursolic acid (5), β-sitosterol 3-O-β-D-glucopyranoside (6) and stigmasterol 3-O-β-D-glucopyranoside (7) were isolated from the roots of Burkea africana through column chromatography. Their structures were elucidated from spectroscopic analyses (UV, IR, MS, 1D and 2D NMR) data and by comparison with data from previous studies. The extract and compounds were tested for their α-amylase inhibition. The extract was more active than the isolated compounds with a percentage inhibition of 51.0 ± 2.5% at 400 µg/mL and was the only sample showing above 50% inhibition at this dose. Amongst the isolated compounds and at the dose of 400 µg/mL, the new diterpenoid Rubesanolidic acid exibited the highest percentage inhibition of α-amylase of 38.2 ± 2.0% while β-sitosterol showed the lowest inhibition of 9.6 ± 0.5%. The results indicate that B. africana is a potential source of antidiabetic compounds.
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Affiliation(s)
- Romeo Toko Feunaing
- Department of Chemistry, Faculty of Sciences, University of Ngaoundere, Ngaoundere, Cameroon
| | - Alfred Ngenge Tamfu
- Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere, Cameroon.,Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, 'Dunarea de Jos' University, Galati, Romania
| | - Fidele Ntchapda
- Department of Biological Sciences, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
| | - Isaac Silvere Gade
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
| | - Martin Noah Mbane
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
| | | | - Emmanuel Talla
- Department of Chemistry, Faculty of Sciences, University of Ngaoundere, Ngaoundere, Cameroon.,Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere, Cameroon
| | - Celine Henoumont
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of Mons, Mons, Belgium
| | - Sophie Laurent
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of Mons, Mons, Belgium
| | - Rodica Mihaela Dinica
- Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, 'Dunarea de Jos' University, Galati, Romania
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7
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Wonkam AKN, Ngansop CAN, Tchuenmogne MAT, Tchegnitegni BT, Bitchagno GTM, Awantu AF, Bankeu JJK, Boyom FF, Sewald N, Lenta BN. Chemical constituents from Baphia leptobotrys Harms (Fabaceae) and their chemophenetic significance. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Antiproliferative Activity of Triterpenoid and Steroid Compounds from Ethyl Acetate Extract of Calotropis gigantea Root Bark against P388 Murine Leukemia Cell Lines. Sci Pharm 2021. [DOI: 10.3390/scipharm89020021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Calotropis gigantea has been known to produce bioactive secondary metabolites with antiproliferative activities against cancer cells. Herein, we extracted the secondary metabolites using ethyl acetate from its root bark and further tested its antiproliferative activities against P388 murine leukemia cell lines. The subfractions from the ethyl acetate extract was obtained from Vacuum Liquid Column Chromatography (VLCC), and followed by Gravity Column Chromatography (GCC). The subfraction C2 and D1 were identified to contain triterpenoids and steroids with the most potent cytotoxicity against Brine Shrimp Lethality Test (BSLT). A 3-(4,5-dimethylthiazol-2-yl) -2-5 diphenyl tetrazolium bromide (MTT) assay suggested that ethyl acetate extract has the highest antiproliferative activities against P388 murine leukemia cell lines (IC50 = 21.79 μg/mL), as opposed to subfraction C2 (IC50 = 50.64 µg/mL) and subfraction D1 (IC50 = 49.33 µg/mL). The compound identified in subfraction C2 and D1 are taraxerol acetate and calotropone, respectively. Though taraxerol acetate and calotropone were active in inhibiting the leukemic cell lines, their IC50s were lower than the ethyl acetate extract, which is probably due to the synergism of the secondary metabolites.
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9
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Bitombo AN, Zintchem AAA, Atchadé ADT, Moni Ndedi EDF, Khan A, Ngono Bikobo DS, Pegnyemb DE, Bochet CG. Antimicrobial and cytotoxic activities of indole alkaloids and other constituents from the stem barks of Rauvolfia caffra Sond (Apocynaceae). Nat Prod Res 2021; 36:1467-1475. [PMID: 33648401 DOI: 10.1080/14786419.2021.1891054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Twenty indole alkaloids, among which two undescribed ones named rauvolfianoids A (1) and B (2), were isolated from the stem barks of Rauvolfia caffra Sond along with eight other compounds from other biosynthetic pathways. The structures were elucidated by analysis of spectroscopic data, including 1 D and 2 D NMR; absolute configurations of 1 and 2 were determined by CD exciton chirality method. Compounds 1 and 2 were evaluated for antimicrobial and anticancer activities against three bacterial strains (Escherichia coli, Shigella sp and Salmonella sp) and CRC-related opportunistic pathogens. 1 showed moderate antibacterial activity against Salmonella sp with the MIC value of 25 μg/ml, while 2 exhibited weak selective activity against all tested pathogens. In addition, these alkaloids were characterized as weak apoptosis inducers in HCT116 human colon carcinoma cell line.
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Affiliation(s)
- Andre Nehemie Bitombo
- Faculty of Science, Department of Organic Chemistry, University of YaoundéI 1, Yaoundé, Cameroon.,Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan.,Department of Chemie, Universität of Fribourg, Fribourg, Switzerland
| | - Auguste Abouem A Zintchem
- Faculty of Science, Department of Organic Chemistry, University of YaoundéI 1, Yaoundé, Cameroon.,Department of Chemistry, Higher Teacher's Training College, University of YaoundéI 1, Yaoundé, Cameroon
| | - Alex de Théodore Atchadé
- Faculty of Science, Department of Organic Chemistry, University of YaoundéI 1, Yaoundé, Cameroon
| | | | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Dominique Serge Ngono Bikobo
- Faculty of Science, Department of Organic Chemistry, University of YaoundéI 1, Yaoundé, Cameroon.,Department of Chemie, Universität of Fribourg, Fribourg, Switzerland
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10
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Qi Z, Fang X, Xie Y, Wang L, Zhang Y, Zhao L. Bioassay-guided isolation of anti-inflammatory constituents from Celtis sinensis leaves. J Food Biochem 2020; 45:e13580. [PMID: 33326628 DOI: 10.1111/jfbc.13580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 11/17/2020] [Accepted: 11/22/2020] [Indexed: 11/29/2022]
Abstract
Ginkgo acids (GAs) in ginkgo products usually lead to allergies or liver toxicity. In this study, the GA-induced toxicity was attenuated and Con A-induced T-lymphocyte proliferation was inhibited by extracts of Celtis sinensis leaves (ECSL). So, the active ingredients in ECSL were studied to solve the problems caused by GAs. First, the eight components of MeOH extracts were determined by HPLC-DAD/LC-MS. Then, the 12 active ingredients were separated based on the anti-inflammatory activity. Lymphocyte conversion showed that the inhibition rates of apigenin, quercetin, and isovitexin at 100 μM on Con A-activated proliferation of T cells were up to 82.46%, 62.86% and 42.76%, respectively. The inhibition rate on the LPS-induced NO release in RAW 264.7 cells of quercetin, apigenin, isovitexin, and vitexin were exceeding 80% at 100 μM. Taken together, the material foundation for the screen of GAs toxicity-attenuated ingredients were provided here. PRACTICAL APPLICATIONS: Ginkgo biloba extracts (EGBs) have been conducted to develop functional food which could increase blood circulation and enhance memory. Nevertheless, people in consumption of ginkgo products, often caused severe allergic reactions due to the potential allergens identified ginkgolic acids (GAs) of ginkgo products. We first find that the extracts of Celtis sinensis leaves can reduce GAs-induced damage on HepG2 liver cells. Then, the bioactive compounds in C. sinensis leaves were separated and purified based on anti-inflammatory activities against T cells. Quercetin, apigenin, and isovitexin showed well anti-inflammatory activities against Con A-activated T-lymphocytes and LPS activated RAW 264.7 macrophages. However, quercetin and apigenin are flavones O-glycosides which are rich in Ginkgo biloba. To solve the problems in Ginkgo biloba products caused by GAs, flavone C-glycoside (isovitexin) may be used for the further study in GAs toxicity-reduction.
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Affiliation(s)
- Zhipeng Qi
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.,College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Xianying Fang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.,College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Yingying Xie
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.,College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Lei Wang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.,College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Yiwei Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.,College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Linguo Zhao
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China.,College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
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11
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Nkwenti Wonkam AK, Njanpa Ngansop CA, Njonte Wouamba SC, Jouda JB, Happi GM, Boyom FF, Sewald N, Lenta BN. Rothmanniamide and other constituents from the leaves of Rothmannia hispida (K.Schum.) fagerl. (Rubiaceae) and their chemophenetic significance. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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4-Benzyloxylonchocarpin and Muracatanes A-C from Ranunculus muricatus L. and Their Biological Effects. Biomolecules 2020; 10:biom10111562. [PMID: 33212893 PMCID: PMC7698453 DOI: 10.3390/biom10111562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/13/2020] [Accepted: 11/13/2020] [Indexed: 11/24/2022] Open
Abstract
Ranunculus muricatus L. is a spiny fruit buttercup that is used in various traditional medicinal systems. In the current investigation of R. muricatus, the new chalcone 4-benzyloxylonchocarpin (1), the new anthraquinone muracatanes A (2), the new-to-nature anthraquinone muracatanes B (3), and the new naphthalene analog muracatanes C (4) were isolated, in addition to the three previously reported compounds, 4-methoxylonchocarpin (5), β-sitosterol (6), and β-sitosterol β-D-glucopyranoside (7). Their structures were elucidated using 1D (1H and 13C) and 2D (COSY, HSQC, and HMBC) NMR spectroscopy and HR-ESI-MS. Chalcone 1 showed potent acetylcholinesterase inhibitory effects with Ki of 5.39 µM and Ki′ of 3.54 µM, but none of the isolated compounds showed inhibitory activity towards butyrylcholinesterase. Anthraquinone 3 illustrated α-glucosidase inhibitory effects with IC50-values of 164.46 ± 83.04 µM. Compound 5 displayed moderate cytotoxic activity towards ovarian carcinoma (A2780, IC50 = 25.4 µM), colorectal adenocarcinoma (HT29, IC50 = 20.2 µM), breast cancer (MCF7, IC50 = 23.7 µM), and thyroid carcinoma (SW1736, IC50 = 26.2 µM) while it was inactive towards pharynx carcinoma (FaDu: IC50 > 30 µM).
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Achika J, Ayo R, Habila J, Oyewale A. Terpenes with antimicrobial and antioxidant activities from Lannea humilis (Oliv.). SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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14
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Azman NAN, Alhawarri MB, Rawa MSA, Dianita R, Gazzali AM, Nogawa T, Wahab HA. Potential Anti-Acetylcholinesterase Activity of Cassia timorensis DC. Molecules 2020; 25:E4545. [PMID: 33020403 PMCID: PMC7582324 DOI: 10.3390/molecules25194545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/22/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022] Open
Abstract
Seventeen methanol extracts from different plant parts of five different Cassia species, including C. timorensis, C. grandis, C. fistula, C. spectabilis, and C. alata were screened against acetylcholinesterase (AChE). C. timorensis extracts were found to exhibit the highest inhibition towards AChE whereby the leaf, stem, and flower methanol extracts showed 94-97% inhibition. As far as we are aware, C. timorensis is one of the least explored Cassia spp. for bioactivity. Further fractionation led to the identification of six compounds, isolated for the first time from C. timorensis: 3-methoxyquercetin (1), benzenepropanoic acid (2), 9,12,15-octadecatrienoic acid (3), β-sitosterol (4), stigmasterol (5), and 1-octadecanol (6). Compound 1 showed moderate inhibition towards AChE (IC50: 83.71 μM), while the other compounds exhibited poor to slightly moderate AChE inhibitory activity. Molecular docking revealed that the methoxy substitution of 1 formed a hydrogen bond with TYR121 at the peripheral anionic site (PAS) and the hydroxyl group at C5 formed a covalent hydrogen bond with ASP72. Additionally, the OH group at the C3' position formed an interaction with the protein at the acyl pocket (PHE288). This possibly explains the activity of 1 in blocking the entry of acetylcholine (ACh, the neurotransmitter), thus impeding the hydrolysis of ACh.
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Affiliation(s)
- Nurul Amira Nurul Azman
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Malaysia; (N.A.N.A.); (M.B.A.); (M.S.A.R.); (R.D.)
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Malaysia;
| | - Maram B. Alhawarri
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Malaysia; (N.A.N.A.); (M.B.A.); (M.S.A.R.); (R.D.)
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Malaysia;
| | - Mira Syahfriena Amir Rawa
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Malaysia; (N.A.N.A.); (M.B.A.); (M.S.A.R.); (R.D.)
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Malaysia;
- Chemical Biology Research Group, RIKEN Centre for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Roza Dianita
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Malaysia; (N.A.N.A.); (M.B.A.); (M.S.A.R.); (R.D.)
| | - Amirah Mohd Gazzali
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Malaysia; (N.A.N.A.); (M.B.A.); (M.S.A.R.); (R.D.)
| | - Toshihiko Nogawa
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Malaysia;
- Chemical Biology Research Group, RIKEN Centre for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Habibah A. Wahab
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Malaysia; (N.A.N.A.); (M.B.A.); (M.S.A.R.); (R.D.)
- USM-RIKEN Centre for Aging Science (URICAS), Universiti Sains Malaysia, 11800 Minden, Malaysia;
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Khan MF, Nasr FA, Noman OM, Alyhya NA, Ali I, Saoud M, Rennert R, Dube M, Hussain W, Green IR, Basudan OAM, Ullah R, Anazi SH, Hussain H. Cichorins D-F: Three New Compounds from Cichorium intybus and Their Biological Effects. Molecules 2020; 25:E4160. [PMID: 32932909 PMCID: PMC7570803 DOI: 10.3390/molecules25184160] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 11/17/2022] Open
Abstract
Cichorium intybus L., (chicory) is employed in various traditional medicines to treat a wide range of diseases and disorders. In the current investigation, two new naphthalane derivatives viz., cichorins D (1) and E (2), along with one new anthraquinone cichorin F (3), were isolated from Cichorium intybus. In addition, three previously reported compounds viz., β-sitosterol (4), β-sitosterol β-glucopyranoside (5), and stigmasterol (6) were also isolated from Cichorium intybus. Their structures were established via extensive spectroscopic data, including 1D (1H and 13C) and 2D NMR (COSY, HSQC and HMBC), and ESIMS. Cichorin E (2) has a weak cytotoxic effect on breast cancer cells (MDA-MB-468: IC50: 85.9 µM) and Ewing's sarcoma cells (SK-N-MC: IC50: 71.1 µM); cichorin F (3) also illustrated weak cytotoxic effects on breast cancer cells (MDA-MB-468: IC50: 41.0 µM and MDA-MB-231: IC50: 45.6 µM), and SK-N-MC cells (IC50: 71.9 µM). Moreover compounds 1-3 did not show any promising anthelmintic effects.
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Affiliation(s)
- Muhammad Farooq Khan
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.F.K.); (N.A.A.); (S.H.A.)
| | - Fahd A. Nasr
- Medicinal, Aromatic and Poisonous Plants Research Center, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.A.N.); (O.M.N.); (R.U.)
| | - Omar M. Noman
- Medicinal, Aromatic and Poisonous Plants Research Center, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.A.N.); (O.M.N.); (R.U.)
| | - Nouf Abdulaziz Alyhya
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.F.K.); (N.A.A.); (S.H.A.)
| | - Iftikhar Ali
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China;
- Department of Chemistry, Karakoram International University, Gilgit 15100, Pakistan
| | - Mohamad Saoud
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Salle), Germany; (M.S.); (R.R.); (M.D.)
| | - Robert Rennert
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Salle), Germany; (M.S.); (R.R.); (M.D.)
| | - Mthandazo Dube
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Salle), Germany; (M.S.); (R.R.); (M.D.)
| | - Wahid Hussain
- Department of Botany, Government Post Graduate College Parachinar, Parachinar 26300, District Kurram, Pakistan;
| | - Ivan R. Green
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7600, South Africa;
| | - Omer Ahmed M. Basudan
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Riaz Ullah
- Medicinal, Aromatic and Poisonous Plants Research Center, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (F.A.N.); (O.M.N.); (R.U.)
| | - Shamsa Hilal Anazi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.F.K.); (N.A.A.); (S.H.A.)
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Salle), Germany; (M.S.); (R.R.); (M.D.)
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Calotropis - A multi-potential plant to humankind: Special focus on its wound healing efficacy. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101725] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Negm WA, Abo El-Seoud KA, Kabbash A, Kassab AA, El-Aasr M. Hepatoprotective, cytotoxic, antimicrobial and antioxidant activities of Dioon spinulosum leaves Dyer Ex Eichler and its isolated secondary metabolites. Nat Prod Res 2020; 35:5166-5176. [PMID: 32643403 DOI: 10.1080/14786419.2020.1789636] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Given the lack of adequate research on Dioon spinulosum (D. spinulosum) Dyer Ex Eichler, this study was conducted focusing on different biological activities and phytochemical investigation of D. spinulosum for the first time. D. spinulosum showed strong protective activity against DNA damage and potent activity against VERO cell line. It also presented antimicrobial and hepatoprotective activity. Phytochemical investigation of the leaves resulted in isolation of two new flavonoids, apigenin 7-O-α-d-glucopyranoside (15) and amentoflavone 7-O-α-l-rhamnopyranoside (16), in addition to fifteen known compounds: phytone (1), trans-phytol (2), β-sitosterol (3), stigmasterol (4), oliveriflavone (5), 7,4',7″,4″'-tetramethylamentoflavone (6), 7,4',7''-trimethylamentoflavone (7), scaidopitysin (8), bilobetin (9), isoginkgetin (10), aromadendrin (11), sotusflavone (12), engeletin (14) and eriocitrin (17) for the first time together with amentoflavone (13). Compounds (11) and (13) displayed very strong cytotoxic activity and showed the highest protective activity against DNA damage.
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Affiliation(s)
- Walaa A Negm
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | | | - Amal Kabbash
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Amira A Kassab
- Department of Histology and Cell biology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mona El-Aasr
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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18
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Taib MNAM, Anuar N, Hanafiah KM, Al-Shammary AAK, Saaid M, Awang K. Chemicals Constituents Isolated from Cultivate Alpinia conchigera Griff. and Antimicrobial Activity. Trop Life Sci Res 2020; 31:159-178. [PMID: 32963717 PMCID: PMC7485532 DOI: 10.21315/tlsr2020.31.1.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022] Open
Abstract
Alpinia conchigera Griff. is a plant species from the family Zingiberaceae. Coloquially known as wild ginger, Alpinia conchigera Griff. is used as food condiment and for traditional treatment of skin diseases. Isolation studies to identify bioactive compounds of rhizomes of Alpinia conchigera yielded seven compounds; 1'S-1'-acetoxychavicol acetate (1), trans-p-coumaryl diacetate (2), p-hydroxycinnamyl acetate (3), 1'S-1'-hydroxychavicol acetate (4) p-hydroxybenzaldehyde (5), stigmasterol (6) and β-sitosterol (7). Compounds 1, 2 and 5 were evaluated for antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA). Among the compounds tested, Compound 1 showed good antimicrobial activity against the strain of MRSA with minimum inhibition concentration (MIC) value of 0.5 mg/mL. Meanwhile, Compounds 2 and 5 exhibited moderate activity with MIC value between 1.0 and 2.0 mg/mL. These findings indicate antimicrobial potential of 1'S-1'-acetoxychavicol acetate (1), compound derived from rhizome of Alpinia conchigera Griff. against MRSA, which warrant further investigation.
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Affiliation(s)
| | - Nursyazwani Anuar
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM Pulau Pinang, Malaysia
| | | | | | - Mardiana Saaid
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM Pulau Pinang, Malaysia
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Ismail A, Hassan HM, Moawad AS, Abdel Fattah SM, Sherif NH, Abdelmohsen UR, Radwan MM, Rateb ME, Hetta MH. Chemical composition and therapeutic potential of three Cycas species in brain damage and pancreatitis provoked by γ-radiation exposure in rats. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2020. [DOI: 10.1080/16878507.2020.1722908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ahmed Ismail
- Pharmacognosy Department, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt
| | - Hossam M. Hassan
- Pharmacognosy Department, Faculty of Pharmacy, Beni-Suef University, Banī Suwayf, Egypt
| | - Abeer S. Moawad
- Pharmacognosy Department, Faculty of Pharmacy, Beni-Suef University, Banī Suwayf, Egypt
| | - Salma M. Abdel Fattah
- Drug Radiation Research Department, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Noheir H. Sherif
- Drug Radiation Research Department, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
- Pharmacognosy Department,Faculty of Pharmacy, Nahda University, Banī Suwayf, Egypt
| | - Usama R. Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, Universities Zone, New Minia City, Egypt
| | - Mohamed M. Radwan
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, MS, USA
- Pharmacognosy Department, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mostafa E. Rateb
- Pharmacognosy Department, Faculty of Pharmacy, Beni-Suef University, Banī Suwayf, Egypt
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley, UK
| | - Mona H. Hetta
- Pharmacognosy Department, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt
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Sharma N, Sharma A, Bhatia G, Landi M, Brestic M, Singh B, Singh J, Kaur S, Bhardwaj R. Isolation of Phytochemicals from Bauhinia variegata L. Bark and Their In Vitro Antioxidant and Cytotoxic Potential. Antioxidants (Basel) 2019; 8:antiox8100492. [PMID: 31627372 PMCID: PMC6826637 DOI: 10.3390/antiox8100492] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/07/2019] [Accepted: 10/16/2019] [Indexed: 12/31/2022] Open
Abstract
Plants have been the basis of traditional medicine since the dawn of civilizations. Different plant parts possess various phytochemicals, playing important roles in preventing and curing diseases. Scientists, through extensive experimental studies, are playing an important part in establishing the use of phytochemicals in medicine. However, there are still a large number of medicinal plants which need to be studied for their phytochemical profile. In this study, the objective was to isolate phytochemicals from bark of Bauhinia variegata L. and to study them for their antioxidant and cytotoxic activities. The bark was extracted with methanol, followed by column chromatography and thus isolating kaempferol, stigmasterol, protocatechuic acid-methyl ester (PCA-ME) and protocatechuic acid (PCA). 2,2-azinobis-3-ethyl-benzothiazoline-6-sulfonic acid (ABTS) and 2, 2'-diphenyl-1-picrylhydrazyl radical (DPPH) radical scavenging assays were utilized for assessment of antioxidant activity, and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) dye reduction assay was used to determine cytotoxic activity against C-6 glioma rat brain, MCF-7 breast cancer, and HCT-15 colon cancer cell lines. The compounds were found to have significant antioxidant and cytotoxic activity. Since there is a considerable increase in characterizing novel chemical compounds from plant parts, the present study might be helpful for chemotaxonomic determinations, for understanding of medicinal properties as well as for the quality assessment of herbal supplements containing B. variegata bark, thus establishing its use in traditional medicine.
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Affiliation(s)
- Neha Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
| | - Anket Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
| | - Gaurav Bhatia
- Department of Biophysics, Panjab University, Chandigarh 160014, India.
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India.
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy.
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Nitra 94976, Slovakia.
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic.
| | - Bikram Singh
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061, India.
| | - Jatinder Singh
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar 143005, India.
| | - Satwinderjeet Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India.
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Haque MN, Mohibbullah M, Hong YK, Moon IS. Calotropis gigantea Promotes Neuritogenesis and Synaptogenesis through Activation of NGF-TrkA-Erk1/2 Signaling in Rat Hippocampal Neurons. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2019; 46:1861-1877. [DOI: 10.1142/s0192415x18500933] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Calotropis gigantea (L.) R. Br (Apocynaceae) (commonly known as milkweed or crown flower) is a large shrub native to temperate regions of Asia, including China, Bangladesh and India and has a long history of use in traditional medicines. In this study, we investigated the neuromodulatory effects of the ethanol extracts of C. gigantea leaves (CGE) during synaptogenesis in the late stage of neuronal development and during early stage neuritogenesis in cultured rat hippocampal neurons. Maximum neuritogenic activity was achieved at a CGE concentration of 7.5[Formula: see text][Formula: see text]g/ml. At this concentration, CGE facilitated the early development of cytoarchitecture, as evidenced by increases in morphometric parameters, such as, the numbers, lengths, and number of branches of initial neurites, axon and dendrites. During the synaptogenic stage (DIV 14), immunocytochemistry (ICC) showed that CGE upregulated synaptic vesicle 2 (SV2, a marker of axon terminals) and postsynaptic density-95 (PSD-95, a postsynaptic marker) and their colocalization. CGE upregulated nerve growth factor (NGF) and activated extracellular signal-regulated kinase 1/2 (Erk1/2), which is blocked by a TrkA-specific inhibitor suggesting the neuritogenic and synaptogenic potential of CGE was due to the activation of NGF-TrkA-Erk1/2 signaling. Moreover, UPLC of CGE did not detect stigmasterol, an active component of C. gigantea. However, the chloroform-methanol and ethyl acetate subfractions of CGE exhibited initial neuritogenic activity, suggesting that multiple active components were responsible for the neurotrophic-mimetic properties of CGE. Our data prove the neuromodulatory ability of CGE and provide a means of identifying new active phytochemicals with potential nootropic, preventative or therapeutic effects on the human brain.
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Affiliation(s)
- Md Nazmul Haque
- Department of Anatomy, Dongguk University Graduate School of Medicine, Gyeongju 38066, Republic of Korea
| | - Md Mohibbullah
- Department of Biotechnology, Pukyong National University, Namku, Busan 48513, Republic of Korea
- Department of Fisheries and Marine Bioscience, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalgonj-8100, Bangladesh
| | - Yong-Ki Hong
- Department of Biotechnology, Pukyong National University, Namku, Busan 48513, Republic of Korea
| | - Il Soo Moon
- Department of Anatomy, Dongguk University Graduate School of Medicine, Gyeongju 38066, Republic of Korea
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23
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Nkot JL, Ngono Bikobo DS, Abouem A Zintchem A, Nyemeck NM, Moni Ndedi EDF, Betote Diboué PH, Pegnyemb DE, Bochet CG, Koert U. Antitubercular evaluation of root extract and isolated phytochemicals from Lophira lanceolata against two resistant strains of Mycobacterium tuberculosis. PHARMACEUTICAL BIOLOGY 2018; 56:318-324. [PMID: 29969355 PMCID: PMC6130701 DOI: 10.1080/13880209.2018.1476559] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 03/31/2018] [Accepted: 05/09/2018] [Indexed: 05/11/2023]
Abstract
CONTEXT The roots of Lophira lanceolata Van Tiegh. Ex Keay (Ochnaceae) have numerous medicinal values in the Central African region. Even though the MeOH extract of the roots has shown antimycobacterial activities, the constituents responsible for this inhibitory activity remain unknown. OBJECTIVE Phytochemical investigation of the MeOH root extract of L. lanceolata and determination of the antimycobacterial activities of that extract and constituents against the growth of Mycobacterium tuberculosis. MATERIALS AND METHODS Column chromatography was used to provide bioactive phytoconstituents. Those compounds were elucidated using MS and NMR spectroscopic data. Antimycobacterial screening of the extract (4.882-5000 µg/mL in DMSO during 24 h at 37 °C) and isolated compounds (0.244-250 µg/mL in DMSO during 24 h at 37 °C) was performed by microplate alamar blue assay (MABA) against two mycobacterial strains. RESULTS The investigation of L. lanceolata MeOH roots extract provided of mixture of unseparated biflavonoids with a newly described one, dihydrolophirone A (1a) associated to lophirone A (1b). The bioactive compounds that effectively inhibited the growth of M. tuberculosis AC45 were found to be compounds 1 and 2. They exhibited MIC values of 31.25 and 15.75 µg/mL, respectively, and their MIC was found to be 62.5 µg/mL against resistant strain AC83. DISCUSSION AND CONCLUSIONS It is clearly evident from the results obtained that the mycobacterial activity of L. lanceolata could be related mainly to its steroid and flavonoid contents. Therefore, this study suggests the potential of the above-mentioned classes of compounds as promising candidate agents for developing new anti-tuberculosis drugs.
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Affiliation(s)
- Jeanne Louise Nkot
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Dominique Serge Ngono Bikobo
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
- Department Chemie, Universität Fribourg, Fribourg, Switzerland
| | - Auguste Abouem A Zintchem
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
- Department of Chemistry, Higher Training College University of Yaoundé I, Yaoundé, Cameroon
| | - Norbert Mbabi Nyemeck
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
- Faculty of Chemistry, Philipps-Universität Marburg, Marburg, Germany
| | | | | | | | | | - Ulrich Koert
- Faculty of Chemistry, Philipps-Universität Marburg, Marburg, Germany
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Harraz FM, Hammoda HM, El-Hawiet A, Radwan MM, Wanas AS, Eid AM, ElSohly MA. Chemical constituents, Antibacterial and Acetylcholine esterase inhibitory activity of Cupressus macrocarpa leaves. Nat Prod Res 2018; 34:816-822. [DOI: 10.1080/14786419.2018.1508140] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Fathalla M. Harraz
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Hala M. Hammoda
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Amr El-Hawiet
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Mohamed M. Radwan
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS, USA
| | - Amira S. Wanas
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS, USA
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Asmaa M. Eid
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Mahmoud A ElSohly
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS, USA
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, USA
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Aati HY, El-Gamal AA, Kayser O, Ahmed AF. The Phytochemical and Biological Investigation of Jatropha pelargoniifolia Root Native to the Kingdom of Saudi Arabia. Molecules 2018; 23:E1892. [PMID: 30060587 PMCID: PMC6222854 DOI: 10.3390/molecules23081892] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/19/2018] [Accepted: 07/25/2018] [Indexed: 11/17/2022] Open
Abstract
Extensive phytochemical analysis of different root fractions of Jatropha pelargoniifolia Courb. (Euphorbiaceae) has resulted in the isolation and identification of 22 secondary metabolites. 6-hydroxy-8-methoxycoumarin-7-O-β-d-glycopyranoside (15) and 2-hydroxymethyl N-methyltryptamine (18) were isolated and identified as new compounds along with the known diterpenoid (1, 3, 4, and 7), triterpenoid (2 and 6), flavonoid (5, 11, 13, 14, and 16), coumarinolignan (8⁻10), coumarin (15), pyrimidine (12), indole (17, 18), and tyramine-derived molecules (19⁻22). The anti-inflammatory, analgesic, and antipyretic activities were evaluated for fifteen of the adequately available isolated compounds (1⁻6, 8⁻11, 13, 14, 16, 21, and 22). Seven (4, 6, 10, 5, 13, 16, and 22) of the tested compounds showed a significant analgesic effect ranging from 40% to 80% at 10 mg/kg in two in vivo models. Compound 1 could also prove its analgesic property (67.21%) when it was evaluated on a third in vivo model at the same dose. The in vitro anti-inflammatory activity was also recorded where all compounds showed the ability to scavenge nitric oxide (NO) radical in a dose-dependent manner. However, eight compounds (1, 4, 5, 6, 10, 13, 16, and 22) out of the fifteen tested compounds exhibited considerable in vivo anti-inflammatory activity which reached 64.91% for compound 10 at a dose of 10 mg/kg. Moreover, the tested compounds exhibited an antipyretic effect in a yeast-induced hyperthermia in mice. The activity was found to be highly pronounced with compounds 1, 5, 6, 10, 13, and 16 which decreased the rectal temperature to about 37 °C after 2 h of the induced hyperthermia (~39 °C) at a dose of 10 mg/kg. This study could provide scientific evidence for the traditional use of J. pelargoniifolia as an anti-inflammatory, analgesic, and antipyretic.
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Affiliation(s)
- Hanan Y Aati
- Department of Pharmacognosy, Faculty of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
| | - Ali A El-Gamal
- Department of Pharmacognosy, Faculty of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
- Department of Pharmacognosy, College of Pharmacy, Mansoura University, El-Mansoura 35516, Egypt.
| | - Oliver Kayser
- Technical Biochemistry, TU Dortmund University, Emil-Figge-Strasse 66, D-44227 Dortmund, Germany.
| | - Atallah F Ahmed
- Department of Pharmacognosy, Faculty of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
- Department of Pharmacognosy, College of Pharmacy, Mansoura University, El-Mansoura 35516, Egypt.
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Alhage J, Elbitar H, Taha S, Guegan JP, Dassouki Z, Vives T, Benvegnu T. Isolation of Bioactive Compounds from Calicotome villosa Stems. Molecules 2018; 23:molecules23040851. [PMID: 29642501 PMCID: PMC6017485 DOI: 10.3390/molecules23040851] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 02/08/2023] Open
Abstract
A phenylethanoid, two steroids, a flavone glucoside and a chalcone have been isolated for the first time from the stems of Calicotome villosa together with a previously isolated flavone glucoside. Their structures were determined by spectroscopic analyses (NMR, HRMS) as basalethanoïd B (1), β-sitosterol and stigmasterol (2), chrysine-7-O-β-d-glucopyranoside (3), chrysine 7-((6′′-O-acetyl)-O-β-d-glucopyranoside) (4) and calythropsin (5). The crude extracts and the isolated compounds (except 4), were evaluated for their antioxidant, antimicrobial (against two Gram-positive bacterial strains: Staphylococcus aureus, Bacillus cereus, four Gram-negative bacterial strains: Staphylococcus epidermidis, Klebsiella pneumonia, Acinetobacter baumanii, and three yeasts: Candida albicans, Candida tropicalis, and Candida glabrata), hemolytic, antidiabetic, anti-inflammatory and cytotoxic activity. The crude extracts showed good ability to scavenge the free radical DPPH. Methanol stem extract followed by the dichloromethane stem extract showed moderate antimicrobial potency; furthermore, at 1 mg/mL the methanol extract showed an inhibition of C. albicans growth comparable to nystatin. Dichloromethane, methanol, and aqueous extracts inhibited 98%, 90%, and 80% of HeLa cell proliferation at 2 mg/mL respectively. Weak hypoglycemic and hemolytic effects were exhibited by the crude extracts. Among all the tested compounds, compound 3 showed remarkable hypoglycemic potential (93% at 0.1 mg/mL) followed by compound 5 (90% at 0.3 mg/mL). Compound 5 was the most effective in the DPPH. scavenging assay (100% at 0.1 mg/mL) and cytotoxic assay on HeLa cells (99% and 90% after 24 and 48 h of treatment at 0.1 mg/mL, respectively). No anti-inflammatory effects were displayed by any of the crude extracts or the isolated compounds at any of the tested concentrations.
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Affiliation(s)
- Josiane Alhage
- AZM Centre for Research in Biotechnology and Its Applications, Laboratory of Applied Biotechnology for Biomolecules, Biotherapy and Bioprocess, Lebanese University, El Mitein Street, Tripoli, Lebanon; (J.A.); (S.T.); (Z.D.)
- ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)–UMR 6226, Univ Rennes, 35000 Rennes, France; (J.-P.G.); (T.V.)
| | - Hoda Elbitar
- AZM Centre for Research in Biotechnology and Its Applications, Laboratory of Applied Biotechnology for Biomolecules, Biotherapy and Bioprocess, Lebanese University, El Mitein Street, Tripoli, Lebanon; (J.A.); (S.T.); (Z.D.)
- Correspondence: (H.E.); (T.B.); Tel.: +961-3-522-303 (H.E.); +33-223-238-060 (T.B.)
| | - Samir Taha
- AZM Centre for Research in Biotechnology and Its Applications, Laboratory of Applied Biotechnology for Biomolecules, Biotherapy and Bioprocess, Lebanese University, El Mitein Street, Tripoli, Lebanon; (J.A.); (S.T.); (Z.D.)
- Faculty of Public Health, Rafic Hariri Campus, Lebanese University, Hadath, Beyrouth, Lebanon
| | - Jean-Paul Guegan
- ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)–UMR 6226, Univ Rennes, 35000 Rennes, France; (J.-P.G.); (T.V.)
| | - Zeina Dassouki
- AZM Centre for Research in Biotechnology and Its Applications, Laboratory of Applied Biotechnology for Biomolecules, Biotherapy and Bioprocess, Lebanese University, El Mitein Street, Tripoli, Lebanon; (J.A.); (S.T.); (Z.D.)
| | - Thomas Vives
- ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)–UMR 6226, Univ Rennes, 35000 Rennes, France; (J.-P.G.); (T.V.)
| | - Thierry Benvegnu
- ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)–UMR 6226, Univ Rennes, 35000 Rennes, France; (J.-P.G.); (T.V.)
- Correspondence: (H.E.); (T.B.); Tel.: +961-3-522-303 (H.E.); +33-223-238-060 (T.B.)
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Vinh LB, Nguyet NTM, Yang SY, Kim JH, Thanh NV, Cuong NX, Nam NH, Minh CV, Hwang I, Kim YH. Cytotoxic triterpene saponins from the mangrove Aegiceras corniculatum. Nat Prod Res 2017; 33:628-634. [DOI: 10.1080/14786419.2017.1402320] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Le Ba Vinh
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | | | - Seo Young Yang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Jang Hoon Kim
- Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
| | - Nguyen Van Thanh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Chau Van Minh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Inkyu Hwang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
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Hamid AA, Aiyelaagbe OO, Negi AS, Luqman S, Kaneez F. Isolation and antiproliferative activity of chemical constituents from Asystasia buettneri Lindau. Nat Prod Res 2017; 32:2076-2080. [DOI: 10.1080/14786419.2017.1360883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | - Arvind S. Negi
- Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow, India
| | - Suaib Luqman
- Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow, India
| | - Fatima Kaneez
- Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow, India
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Isolation, biological evaluation and validated HPTLC-quantification of the marker constituent of the edible Saudi plant Sisymbrium irio L. Saudi Pharm J 2016; 25:750-759. [PMID: 28725148 PMCID: PMC5506741 DOI: 10.1016/j.jsps.2016.10.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 10/29/2016] [Indexed: 12/19/2022] Open
Abstract
Phytochemical investigation and chromatographic purification of the n-hexane fraction of the aerial parts of the edible Saudi plant Sisymbrium irio led to the isolation of β-sitosterol (1), stigmasterol (2) and β-sitosterol-β-d-glucoside (3). The cytotoxic effects of the n-hexane, dichloromethane, ethyl acetate and n-butanol fractions were tested against three cancer cell lines viz., MCF-7, HCT-116 and HepG2, using the crystal violet staining (CVS) method, while the antibacterial activity against a number of pathogenic bacterial strains, was also estimated using the broth microdilution assay. The n-hexane fraction showed potent cytotoxic activities against all tested human cancer cell lines (IC50: 11.7–13.4 μg/mL), while the dichloromethane fraction was particularly potent against HCT-116 cells (IC50: 5.42 μg/mL). On the other hand, the n-hexane and EtOAc fractions demonstrated significant inhibitory activities against the Gram positive bacteria S. pyogenes and C. perfringens; and the Gram negative bacterium S. enteritidis. Our results warrant the therapeutic potential of S. irio as nutritional supplement to reduce the risk of contemporary diseases. Additionally, a validated high performance thin-layer chromatography (HPTLC) method was developed for the quantitative analysis of biomarker β-sitosterol glucoside (isolated in high quantity) from the n-hexane fraction. The system was found to furnish a compact, sharp, symmetrical and high resolution band for β-sitosterol glucoside (Rf = 0.43 ± 0.002). The limit of detection (LOD) and limit of quantification (LOQ) for β-sitosterol glucoside was found to be 21.84 and 66.18 ng band−1, respectively. β-sitosterol glucoside was found to be present only in n-hexane fraction (2.10 μg/mg of dried fraction) while it was absent in the other fractions of S. irio which validated the high cytotoxic and antibacterial activity of n-hexane fraction of S. irio.
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Hamid AA, Aiyelaagbe OO, Negi AS, Luqman S, Kaneez F. Bioguided Isolation and Antiproliferative Activity of Constituents fromSmilax korthalsiiA.D.C. Leaves. J CHIN CHEM SOC-TAIP 2016. [DOI: 10.1002/jccs.201500395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kushwaha V, Saxena K, Verma R, Verma SK, Katoch D, Kumar N, Lal B, Murthy PK, Singh B. Antifilarial activity of diterpenoids from Taxodium distichum. Parasit Vectors 2016; 9:312. [PMID: 27245322 PMCID: PMC4888613 DOI: 10.1186/s13071-016-1592-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 05/13/2016] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Lymphatic filariasis caused by Wuchereria bancrofti, Brugia malayi and B. timori, is a debilitating disease with an adverse social and economic impact. The infection remains unabated in spite of treatment with existing antifilarial drugs diethylcarbamazine (DEC) and ivermectin which are chiefly microfilaricides. There is therefore, need for macrofilaricides, embryostatic agents and better microfilaricides. In the present study we explored the antifilarial potential of crude extract and its molecular fractions of the plant Taxodium distichum using in vitro assay systems and rodent models of B. malayi infection. METHODS Ethanolic extract (A001) of aerial parts of T. distichum was solvent fractionated and sub-fractionated. Four molecules, 3-Acetoxylabda-8(20), 13-diene-15-oic acid (K001), Beta-sitosterol (K002), labda-8(20),13-diene-15-oic acid (K003) and Metasequoic acid A (K004) were isolated from the fractions and their structure determined by spectroscopic analysis. The extract, subfractions and molecules were evaluated for antifilarial activity against B. malayi by 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide (MTT) reduction and motility assays in vitro and in two animal models, Meriones unguiculatus and Mastomys coucha, harbouring B. malayi infection. RESULTS A001 was effective in killing microfilariae (mf) and adult worms in vitro. The diterpenoid K003 produced 100 % reduction in motility of both mf and adult worms and > 80 % inhibition in MTT reduction potential of adult female worms. In B. malayi-M. unguiculatus model, A001 killed all the adult worms in > 80 % of infected animals. K003 was embryostatic (> 95 %) in this model. In the B. malayi-M. coucha model, K003 killed ~54 % of adult worms (macrofilaricidal activity) and rendered > 36 % female worms sterile; it also stopped any further rise in microfilaraemia after day 42 post-initiation of treatment. CONCLUSION Ethanolic extract of aerial parts of the plant T. distichum possesses potent antifilarial activity and the active principle was localised to K003 which showed significant macrofilaricidal activity and late suppression of peripheral microfilaraemia and some embryostatic activity. These findings indicate that labdane diterpenoid molecule(s) may provide valuable leads for design and development of new macrofilaricidal agent(s). To the best of our knowledge, this is the first report on antifilarial efficacy of products from the plant T. distichum.
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Affiliation(s)
- Vikas Kushwaha
- Division of Parasitology, CSIR-Central Drug Research Institute, New Campus, BS 10/1, Sector 10, Jankipuram Extension, Lucknow, 226 031, India
| | - Kirti Saxena
- Division of Parasitology, CSIR-Central Drug Research Institute, New Campus, BS 10/1, Sector 10, Jankipuram Extension, Lucknow, 226 031, India
| | - Richa Verma
- Division of Parasitology, CSIR-Central Drug Research Institute, New Campus, BS 10/1, Sector 10, Jankipuram Extension, Lucknow, 226 031, India
| | - Shiv K Verma
- Division of Parasitology, CSIR-Central Drug Research Institute, New Campus, BS 10/1, Sector 10, Jankipuram Extension, Lucknow, 226 031, India
- Present Address: USDA, ARS, APDL, BARC-East Bldg 1001, 10300 Baltimore Avenue, Beltsville, MD, 20705, USA
| | - Deepali Katoch
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, HP, India
| | - Neeraj Kumar
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, HP, India
| | - Brij Lal
- Biodiversity Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, HP, India
| | - P Kalpana Murthy
- Division of Parasitology, CSIR-Central Drug Research Institute, New Campus, BS 10/1, Sector 10, Jankipuram Extension, Lucknow, 226 031, India.
| | - Bikram Singh
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, HP, India.
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Lo IW, Cheng YB, Haung CC, Hwang TL, Wu CC, Liou JR, Hou MF, Yuan SS, Chang FR, Wu YC. Constituents of the Leaves of Pandanus Utilis. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Nineteen compounds, including seven triterpenoids (1–7), five steroids (8–12), four cyclohexenone derivatives (13–16), two benzenoid glycosides (17 and 18) and one lignan (19), were isolated and separated from the leaves of Pandanus utilis through bioactivity-guided fractionation. Among them, one new lanosterol-type triterpenoid was found and named as (24 R)-24-methyl-5α-4-demethyllanosta-9(11),25-dien-3β-ol (1). The structures of the isolates were determined by mass and spectroscopic analyses, and the compounds were subjected to anti-inflammatory, anti-oxidative and cytotoxic assays.
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Affiliation(s)
- I-Wen Lo
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yuan-Bin Cheng
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Chen-Chang Haung
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chin-Chung Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jing-Ru Liou
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ming-Feng Hou
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Shyng-Shiou Yuan
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 40402, Taiwan
- Research Center for Chinese Herbal Medicine, China Medical University, Taichung 40402, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 40402, Taiwan
- Center of Molecular Medicine, China Medical University Hospital, Taichung 40402, Taiwan
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Ma B, Wang J, Tong J, Zhou G, Chen Y, He J, Wang Y. Protective effects of Chaenomeles thibetica extract against carbon tetrachloride-induced damage via the MAPK/Nrf2 pathway. Food Funct 2016; 7:1492-500. [DOI: 10.1039/c5fo01430a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chaenomeles thibetica extract possesses antioxidant and hepatoprotective effects against carbon tetrachloride-induced damage via the MAPK/Nrf2 pathway.
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Affiliation(s)
- Bingxin Ma
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
| | - Jing Wang
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
| | - Jing Tong
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
| | - Gao Zhou
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
| | - Yuxin Chen
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
| | - Jingsheng He
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
| | - Youwei Wang
- Institute of TCM and Natural Products
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- People's Republic of China
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Wang L, Gao D, Xu Z, Yang F, Xia Z. Chemical Constituents of Pouzolzia zeylanica with PPARγ and PPARβ Activities. Chem Nat Compd 2015. [DOI: 10.1007/s10600-015-1516-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Y MS, A MM, N T, S MA, M IA, U UP, A YI. Isoliquiritigenin and -sitosterol from Cissus polyantha Tuber Glig and Brandt. ACTA ACUST UNITED AC 2015. [DOI: 10.5897/jmpr2015.5786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Outuki PM, Lazzeri NS, de Francisco LMB, Bersani-Amado CA, Ferreira ICP, Cardoso MLC. A high performance liquid chromatography with ultraviolet method for Eschweilera nana leaves and their anti-inflammatory and antioxidant activities. Pharmacogn Mag 2015; 11:619-26. [PMID: 26246741 PMCID: PMC4522852 DOI: 10.4103/0973-1296.160464] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 12/27/2014] [Accepted: 07/10/2015] [Indexed: 12/03/2022] Open
Abstract
Background: Eschweilera nana Miers is a tree widely distributed in Cerrado, Brazil. Objective: In this study, we aimed to describe its phytochemical properties and antioxidant and topical anti-inflammatory effects for the first time, as well validate an high performance liquid chromatography with ultraviolet/visible (HPLC-UV-Vis) method for the separation and quantification of the main components (hyperoside and rutin) in the hydroalcoholic extract of E. nana leaves. Materials and Methods: Structural identification of compounds in E. nana extract was performed by analysis of spectral data by 1H nuclear magnetic resonance, 13C nuclear magnetic resonance and/or ESI/EM. The HPLC-UV-Vis method was validated according International Conference on Harmonization (ICH) parameters. The 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) method were used for determination of in vitro antioxidant activities and the croton oil-induced inflammation for evaluation of in vivo anti-inflammatory effects. Results: Hyperoside, rutin, α-amirin, β-amirin, β-sitosterol, and stigmasterol were identified in the hydroalcoholic extract of E. nana leaves. HPLC-UV-Vis was validated according to ICH parameters. Furthermore, in vitro and in vivo assays demonstrated that the hydroalcoholic extract and methanol fraction showed significant antioxidant and topical anti-inflammatory effects, as they were able to reduce ear edema induced by croton-oil application. Conclusions: This research showed the first phytochemical study of E. nana extract and their biological activities may be associated with the presence of flavonoids in the extracts.
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Affiliation(s)
- Priscila M Outuki
- Department of Pharmacy, State University of Maringá, Maringá, Paraná, Brazil
| | - Nides S Lazzeri
- Department of Pharmacy, State University of Maringá, Maringá, Paraná, Brazil
| | | | - Ciomar A Bersani-Amado
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, Paraná, Brazil
| | - Izabel C P Ferreira
- Department of Pharmacy, State University of Maringá, Maringá, Paraná, Brazil
| | - Mara Lane C Cardoso
- Department of Pharmacy, State University of Maringá, Maringá, Paraná, Brazil
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Gbedema SY, Bayor MT, Annan K, Wright CW. Clerodane diterpenes from Polyalthia longifolia (Sonn) Thw. var. pendula: Potential antimalarial agents for drug resistant Plasmodium falciparum infection. JOURNAL OF ETHNOPHARMACOLOGY 2015; 169:176-182. [PMID: 25914039 DOI: 10.1016/j.jep.2015.04.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/09/2015] [Accepted: 04/13/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Plasmodium falciparum drug resistance is a major public health challenge in sub-Sahara Africa. Many people are now resorting to the use of herbs in managing malaria due to the increasing treatment failures with the conventional drugs. In this study the ethanolic extract of Polyalthia longifolia (Sonn) Thw. var. pendula, a variety fondly used in folklore medicine in Ghana was investigated for potential antimalarial drug development. METHOD The ethanolic extract of P. longifolia (Sonn) Thw. var. pendula stem bark was screened against the multidrug resistant, K1 strain of P. falciparum by the parasite lactate dehydrogenase (pLDH) assay and a good antiplasmodial activity (IC50 22.04± 4.23µg/ml) was observed which led to further chromatographic analysis in search for actives. RESULTS Bioassay guided fractionation of the extract yielded; three clerodane diterpenes [16-hydroxycleroda-3,13-dien-16,15-olide (1), 16-oxocleroda-3,13E-dien-15-oic acid (2) and 3,16-dihydroxycleroda-4(18),13(14)Z-dien-15,16-olide (3)], a steroid [beta-stigmasterol (4)] and two alkaloids [darienine (5) and stepholidine (6)]. While compounds 4, 5 and 6 exhibited weak antiplasmodial activity (IC50 22-105µg/ml), the clerodane diterpenes exhibited significantly potent (p<0.005) blood schizonticidal activity (IC50: 3-6µg/ml). This is the first report of the antiplasmodial activity of compounds 2 and 3. In combination assay with chloroquine, compounds 1, 2, 3 and 5 antagonized the antiplasmodial activity of chloroquine while 4 and 6 demonstrated a synergistic action. CONCLUSION The potent antiplasmodial activity of the extract of P. longifolia (Sonn) Thw. var. pendula and compounds therein strongly suggests its usefulness as an antimalarial agent and supports its inclusion or exploitation in formulations of herbal remedies for malaria in Ghana.
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Affiliation(s)
- Stephen Y Gbedema
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana; School of Pharmacy, University of Bradford, Bradford, West Yorkshire BD7 1DP, UK.
| | - Marcel T Bayor
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kofi Annan
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Colin W Wright
- School of Pharmacy, University of Bradford, Bradford, West Yorkshire BD7 1DP, UK
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Georgieva YP, Mladenov RD, Bozov PI. Chemical Constituents of Scutellaria altissima. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-1187-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Saleem S, Jafri L, ul Haq I, Chang LC, Calderwood D, Green BD, Mirza B. Plants Fagonia cretica L. and Hedera nepalensis K. Koch contain natural compounds with potent dipeptidyl peptidase-4 (DPP-4) inhibitory activity. JOURNAL OF ETHNOPHARMACOLOGY 2014; 156:26-32. [PMID: 25169215 DOI: 10.1016/j.jep.2014.08.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/17/2014] [Accepted: 08/15/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The two plants investigated here (Fagonia cretica L. and Hedera nepalensis K. Koch) have been previously reported as natural folk medicines for the treatment of diabetes but until now no scientific investigation of potential anti-diabetic effects has been reported. MATERIALS AND METHODS In vitro inhibitory effect of the two tested plants and their five isolated compounds on the dipeptidyl peptidase 4 (DPP-4) was studied for the assessment of anti-diabetic activity. RESULTS A crude extract of Fagonia cretica possessed good inhibitory activity (IC₅₀ value: 38.1 μg/ml) which was also present in its n-hexane (FCN), ethyl acetate (FCE) or aqueous (FCA) fractions. A crude extract of Hedera nepalensis (HNC) possessed even higher inhibitory activity (IC50 value: 17.2 μg/ml) and this activity was largely retained when further fractionated in either ethyl acetate (HNE; IC50: 34.4 μg/ml) or n-hexane (HNN; 34.2 μg/ml). Bioactivity guided isolation led to the identification of four known compounds (isolated for the first time) from Fagonia cretica: quinovic acid (1), quinovic acid-3β-O-β-D-glycopyranoside (2), quinovic acid-3β-O-β-D-glucopyranosyl-(28→1)-β-D-glucopyranosyl ester (3), and stigmasterol (4) all of which inhibited DPP-4 activity (IC₅₀: 30.7, 57.9, 23.5 and >100 µM, respectively). The fifth DPP-4 inhibitor, the triterpenoid lupeol (5) was identified in Hedera nepalensis (IC₅₀: 31.6 μM). CONCLUSION The experimental study revealed that Fagonia cretica and Hedera nepalensis contain compounds with significant DPP-4 inhibitory activity which should be further investigated for their anti-diabetic potential.
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Affiliation(s)
- Samreen Saleem
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Laila Jafri
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Ihsan ul Haq
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Leng Chee Chang
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawaii at Hilo, Hilo, HI 96720, United States.
| | - Danielle Calderwood
- Advanced ASSET Centre, Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, UK.
| | - Brian D Green
- Advanced ASSET Centre, Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, UK.
| | - Bushra Mirza
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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Agnihotri VK, Thakur S, Pathania V, Chand G. A New Dihomosesquiterpene, Termioic Acid A, from Curcuma aromatica. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-1048-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Habib MR, Karim MR. Effect of anhydrosophoradiol-3-acetate of Calotropis gigantea (Linn.) flower as antitumoric agent against Ehrlich's ascites carcinoma in mice. Pharmacol Rep 2014; 65:761-7. [PMID: 23950602 DOI: 10.1016/s1734-1140(13)71057-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 01/11/2013] [Indexed: 10/25/2022]
Abstract
BACKGROUND Over 60% of currently used anti-cancer agents are derived in one-way or another from natural sources, including plants, marine organisms and microorganisms. Calotropis gigantea (Linn.) (Family: Asclepiadaceae) is a perennial shrub and it is used as a traditional folk medicine for the treatment of various health complications. But there is no report on isolation of anticancerous chemicals from the flower of Calotropis gigantea. The objective of the present study is to explore the antitumor effect of anhydrosophoradiol-3-acetate (A3A), isolated from the flower of Calotropis gigantea (Linn.) against Ehrlich's ascites carcinoma (EAC) in Swiss albino mice. METHODS Antitumoric effect of A3A was assessed by evaluating viable tumor cell count, survival time, body weight gain due to tumor burden, hematological and biochemical (glucose, cholesterol, triglyceride, blood urea, SALP, SGPT and SGOT) parameters of EAC bearing host at doses of 10 and 20 mg/kg body weight. RESULTS Treatment with A3A decreased the viable tumor cells and body weight gain thereby increasing the life span of EAC bearing mice. A3A also brought back the altered hematological (Hb, total RBC and total WBC) and biochemical parameters more or less to normal level. CONCLUSION Results of this study conclude that in vivo the A3A was effective in inhibiting the growth of EAC with improving in cancer induced complications.
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Affiliation(s)
- Muhammad R Habib
- Department of Biochemistry and Molecular Biology, Faculty of Science, Rajshahi University, Rajshahi-6205, Bangladesh
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Hawas U, Eltomy S, Nassif R, El-Hossary G, AbouZid S. Retraction. A new antifungal labdane diterpene from the leaves of Saraca indica. Nat Prod Res 2013; 29:i-vi. [PMID: 24237384 DOI: 10.1080/14786419.2013.855931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A new labdane diterpene, along with 10 known sterols and flavonoids, was isolated from the hydroalcoholic extract of the leaves of Saraca indica. The chemical structure of the new compound was identified as 6,9-epoxy marrubiinic acid on the basis of spectroscopic analyses including two-dimensional NMR. The antimicrobial potential of the new compound was evaluated against Gram-positive and Gram-negative bacteria as well as fungi. It showed a significant antifungal activity against Geotrichum candidum with MIC 0.48 μg/mL. It also showed potential cytotoxicity against human cancer cell lines with IC50 ranging from 1.07 to 1.29 μg/well.
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Affiliation(s)
- U Hawas
- a Marine Chemistry Department , Faculty of Marine Sciences, King Abdulaziz University , Jeddah , Saudi Arabia
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Kadiyala M, Ponnusankar S, Elango K. Calotropis gigantiea (L.) R. Br (Apocynaceae): a phytochemical and pharmacological review. JOURNAL OF ETHNOPHARMACOLOGY 2013; 150:32-50. [PMID: 24012528 DOI: 10.1016/j.jep.2013.08.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 08/27/2013] [Accepted: 08/28/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calotropis gigantiea (L.) R. Br (Apocynaceae) commonly called as "crown flower" or "giant milk weed" is a well-known weed to many cultures for treating various disorders related to central nervous system, skin diseases, digestive system, respiratory system, reproductive system etc. Indigenous groups made the plant as a part of their lives since they use the fruit fibre to make ropes, household items, for weaving clothes and flowers for garlands apart from usage for various indications. The study aims at far-reaching review on phytochemistry, pharmacological activities, ethnopharmacology, intellectual property transfer on pharmacological therapies, toxicity which aids to provide scientific evidence for the ethnobotanical claims and to identify gaps required to be conducted as a future research prerequisite. MATERIALS AND METHODS A systematic literature search was performed using different databases such as Scopus, Science direct, PubMed and Sciverse with no timeline limit set during the search. All the available abstracts and full text articles were included in the systematic review. RESULTS Most of the folkloric uses were validated by the scientific studies such as analgesic, anti-arthritic, anti-asthmatic, anti-bacterial, anti-convulsant, anti-pyretic, central nervous system disorders, contraceptive, anti-ulcer and wound healing. In addition other studies such as anti-diabetic, anti-diarrhoeal, anti-helminthic, anti-histamine, anti-inflammatory, anti-microbial, anti-oxidant, cardio-protective studies, cytotoxicity, hepatoprotectivity, fibrinolytic, mosquitocidal, nerve muscle activity, vasodilation and skeletal muscle activities were also reported for the plant. Isolated compounds such as calotropin, frugoside and 4'-O-β-D-glucopyranosyl frugoside were tested for the cytotoxicity efficacy against both human and rat cell lines out of which calotropin showed potent activity (IC50-15 ng/ml). However there were no clinical trials reported on the plant which is one of the major lacunas. CONCLUSIONS This review article explores the ethnopharmacological, pharmacological activities phytochemistry and intellectual rights of Cg which gives the evidence of a potent and commercial drug which up on further research leads to the most viable drug for variety of treatments. However there is further need for in-vivo studies and clinical trials on isolated phytoconstituents which will help to commercialise.
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Affiliation(s)
- Madhuri Kadiyala
- Department of Pharmacology, JSS College of Pharmacy, Udhagamandalam 643001, The Nilgiris, Tamil Nadu, India.
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Zeng Q, Guan B, Cheng X, Wang C, Jin HZ, Zhang WD. Chemical constituents from Metasequoia glyptostroboides Hu et Cheng. BIOCHEM SYST ECOL 2013. [DOI: 10.1016/j.bse.2013.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Izwan Mohd Lazim M, Safinar Ismail I, Shaari K, Abd. Latip J, Ali Al-Mekhlafi N, Morita H. Chrotacumines E and F, Two New Chromone-Alkaloid Analogs fromDysoxylum acutangulum(Meliaceae) Leaves. Chem Biodivers 2013; 10:1589-96. [DOI: 10.1002/cbdv.201200391] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Indexed: 11/11/2022]
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Su W, Liu Q, Yang Q, Yu J, Chen X. Separation and purification of four compounds from Desmodium styracifolium
using off-line two-dimensional high-speed counter-current chromatography. J Sep Sci 2013; 36:3338-44. [DOI: 10.1002/jssc.201300653] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 07/18/2013] [Accepted: 07/31/2013] [Indexed: 01/20/2023]
Affiliation(s)
- Wen Su
- School of Chemistry and Chemical Engineering; Central South University; Changsha China
| | - Qi Liu
- School of Chemistry and Chemical Engineering; Central South University; Changsha China
| | - Qing Yang
- School of Chemistry and Chemical Engineering; Central South University; Changsha China
| | - Jingang Yu
- School of Chemistry and Chemical Engineering; Central South University; Changsha China
- Key Laboratory of Resources Chemistry of Nonferrous Metals; Ministry of Education; Central South University; Changsha China
| | - Xiaoqing Chen
- School of Chemistry and Chemical Engineering; Central South University; Changsha China
- Key Laboratory of Resources Chemistry of Nonferrous Metals; Ministry of Education; Central South University; Changsha China
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