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Antibacterial and Antibiotic-Potentiating Activities of Thirteen Cameroonian Edible Plants against Gram-Negative Resistant Phenotypes. ScientificWorldJournal 2018; 2018:4020294. [PMID: 30275799 PMCID: PMC6151687 DOI: 10.1155/2018/4020294] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 06/24/2018] [Accepted: 07/17/2018] [Indexed: 12/12/2022] Open
Abstract
This work was designed to investigate the antibacterial activities of methanol extracts from thirteen Cameroonian edible plants and their antibiotic-potentiating effects against Gram-negative multidrug-resistant (MDR) phenotypes. The broth microdilution method was used to evaluate the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of the extracts, as well as their antibiotic-potentiating activities. The phytochemical screening of the extracts was carried out according to the standard methods. The results of phytochemical tests revealed the presence of sterols, polyphenols, and tannins in most of the tested extracts, with the other classes of secondary metabolites being selectively distributed. Tested extracts showed variable antibacterial activities with MIC values ranging from 64 to 1024 μg/mL. However, some extracts were significantly active against certain bacterial strains: seeds extract of Theobroma cacao (64 μg/mL) against Escherichia coli AG100Atet and Klebsiella pneumoniae K24, and the bark extract of Uapaca guineensis against E. coli ATCC 8739. The leaves extract of T. cacao displayed the best MBC values (256 μg/mL) against E. aerogenes EA27. Some tested extracts included extracts from the leaves of T. cacao and P. vulgaris, and the seeds of D. edulis and barks A. indica has selectively improved (2- to 64-fold) the antibacterial activities of some of the tested antibiotics, chloramphenicol (CHL), tetracycline (TET), kanamycin (KAN), streptomycin (STR), and erythromycin (ERY), against more than 70% of tested MDR bacteria. The findings of this work showed that tested plant extracts and particularly those from T. cacao and Phaseolus vulgaris can be used alone or in combination with conventional antibiotics in the treatment of infections involving multiresistant bacteria.
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102
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Preparations based on minerals extracts of Calicotome villosa roots and bovine butyrate matter: Evaluation in vitro of their antibacterial and antifungal activities. J Mycol Med 2018; 28:473-481. [DOI: 10.1016/j.mycmed.2018.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 05/13/2018] [Accepted: 05/14/2018] [Indexed: 11/24/2022]
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103
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Otrubova K, Fitzgerald AE, Mani NS. A novel entry to xanthones by an intramolecular Diels-Alder reaction involving 2-(1,2-dichlorovinyloxy) aryl dienones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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104
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Tortosa M, Cartea ME, Rodríguez VM, Velasco P. Unraveling the metabolic response of Brassica oleracea exposed to Xanthomonas campestris pv. campestris. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:3675-3683. [PMID: 29315593 DOI: 10.1002/jsfa.8876] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/29/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
BACKGROUND Brassica crops together with cereals represent the basis of world supplies. Due to their importance, the production losses caused by Xanthomonas campestris pv. campestris (Xcc) infection represent a high economic impact. Understanding molecular and biochemical mechanisms of plants is essential to develop resistant crops with durable protection against diseases. In this regard, metabolomics has emerged as a valuable technology to provide an overview of the biological status of a plant exposed to a disease. This study investigated the dynamic changes in the metabolic profile of Brassica oleracea plants during an Xcc infection from leaves collected at five different days post infection using a mass spectrometry approach. RESULTS Results showed that Xcc infection causes dynamic changes in the metabolome of B. oleracea. Moreover, induction/repression pattern of the metabolites implicated in the response follows a complex dynamics during infection progression, indicating a complex temporal response. Specific metabolic pathways such as alkaloids, coumarins or sphingolipids are postulated as promising key role candidates in the infection response. CONCLUSION This work tries to decipher the changes produced on Brassica crops metabolome under Xcc infection and represents a step forward in the understanding of B. oleracea-Xcc interaction. © 2018 Society of Chemical Industry.
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Affiliation(s)
- María Tortosa
- Group of Genetics, Breeding and Biochemistry of Brassicas, Misión Biológica de Galicia (CSIC), Pontevedra, Spain
| | - María E Cartea
- Group of Genetics, Breeding and Biochemistry of Brassicas, Misión Biológica de Galicia (CSIC), Pontevedra, Spain
| | - Víctor M Rodríguez
- Group of Genetics, Breeding and Biochemistry of Brassicas, Misión Biológica de Galicia (CSIC), Pontevedra, Spain
| | - Pablo Velasco
- Group of Genetics, Breeding and Biochemistry of Brassicas, Misión Biológica de Galicia (CSIC), Pontevedra, Spain
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105
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Malik K, Ahmad M, Bussmann RW, Tariq A, Ullah R, Alqahtani AS, Shahat AA, Rashid N, Zafar M, Sultana S, Shah SN. Ethnobotany of Anti-hypertensive Plants Used in Northern Pakistan. Front Pharmacol 2018; 9:789. [PMID: 30087613 PMCID: PMC6066661 DOI: 10.3389/fphar.2018.00789] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 06/28/2018] [Indexed: 12/12/2022] Open
Abstract
Hypertension is one of the most important factors responsible for cardiovascular ailments worldwide. It has been observed that herbal products and alternative herbal therapies played a significant role in decreasing hypertension. The aim of the current study is to provide significant ethnopharmacological information, both qualitative and quantitative on medicinal plants related to hypertension from Northern Pakistan. The documented data were quantitatively analyzed for the first time in this area. A total of 250 participants were interviewed through semi-structured discussions and questionnaires. Quantitative indices including FC (Frequency citation), FIV (Family importance value), RFC (Relative frequency of citation) and DCI (Disease Consensus index) were calculated. A total of 192 plant species, belonging to 77 families were reported to be used in treatment of hypertension in Northern Pakistan. The most dominant life form reported was herbs (54%), with decoction (72 reports) and leaves (55.1%) were commonly utilized plant part. Highest FIV was recorded in Lamiaceae (327 FIV). RFC ranged from 0.08 to 1.08% while DCI varied from 0.233 to 0.000. In this study original data was compared with thirty one previous national and international published papers from neighboring region to compare the medicinal uses and obtain some novel plant species. About 42% of the medicinal plant species were reported for the first time in treatment of hypertension in comparison to these 31 published papers. Different phytochemical activities of antihypertensive plants were also reported from literature. This research work documents the traditional knowledge of medicinal plants usage and provides baseline in designing clinical trials and pharmacological analysis for treatment of hypertension.
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Affiliation(s)
- Khafsa Malik
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Mushtaq Ahmad
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Center for Natural Products Lab, Chengdu Institute of Biology, Sichuan, China
| | - Rainer W. Bussmann
- Department of Ethnobotany, Institute of Botany, Ilia State University, Tbilisi, Georgia
| | - Akash Tariq
- Key Laboratory of Mountain Ecological Restoration, Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Riaz Ullah
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy King Saud University, Riyadh, Saudi Arabia
| | - Ali S. Alqahtani
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy King Saud University, Riyadh, Saudi Arabia
| | - Abdelaaty A. Shahat
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy King Saud University, Riyadh, Saudi Arabia
- Phytochemistry Department, National Research Centre, Giza, Egypt
| | - Neelam Rashid
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Zafar
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shazia Sultana
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Center for Natural Products Lab, Chengdu Institute of Biology, Sichuan, China
| | - Syed N. Shah
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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106
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Vieira TM, dos Santos IA, Silva TS, Martins CHG, Crotti AEM. Antimicrobial Activity of Monoketone Curcuminoids Against Cariogenic Bacteria. Chem Biodivers 2018; 15:e1800216. [DOI: 10.1002/cbdv.201800216] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/04/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Tatiana M. Vieira
- Departamento de Química; Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Av. Bandeirantes, 3900 CEP 14040-901 Ribeirão Preto SP Brazil
| | - Isabella A. dos Santos
- Departamento de Química; Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Av. Bandeirantes, 3900 CEP 14040-901 Ribeirão Preto SP Brazil
| | - Thayná S. Silva
- Laboratório de Pesquisa em Microbiologia Aplicada; Universidade de Franca; Av. Dr. Armando Salles de Oliveira, 201 - Parque Universitário CEP 14404600 Franca SP Brazil
| | - Carlos H. G. Martins
- Laboratório de Pesquisa em Microbiologia Aplicada; Universidade de Franca; Av. Dr. Armando Salles de Oliveira, 201 - Parque Universitário CEP 14404600 Franca SP Brazil
| | - Antônio E. M. Crotti
- Departamento de Química; Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Av. Bandeirantes, 3900 CEP 14040-901 Ribeirão Preto SP Brazil
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107
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Yu HF, Qin XJ, Ding CF, Wei X, Yang J, Luo JR, Liu L, Khan A, Zhang LC, Xia CF, Luo XD. Nepenthe-Like Indole Alkaloids with Antimicrobial Activity from Ervatamia chinensis. Org Lett 2018; 20:4116-4120. [PMID: 29927253 DOI: 10.1021/acs.orglett.8b01675] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two monoterpenoid indole alkaloid erchinines A (1) and B (2), possessing unique 1,4-diazepine fused with oxazolidine architecture and three hemiaminals, were isolated from Ervatamia chinensis. Their structures were elucidated on the basis of intensive spectroscopic analysis, and a plausible biosynthetic pathway from ibogaine was proposed. Both compounds exhibited significant antimicrobial activity against Trichophyton rubrum and Bacillus subtilis, and their activities were comparable to the first line antifungal drug griseofulvin and antibiotic cefotaxime.
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Affiliation(s)
- Hao-Fei Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products , Kunming Medical University , Kunming 650500 , P. R. China.,University of the Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China
| | - Cai-Feng Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,University of the Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,University of the Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China
| | - Jie-Rong Luo
- School of Mathematical Sciences , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Lu Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,Yunnan University of Traditional Chinese Medicine , Kunming 650500 , P. R. China
| | - Afsar Khan
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,Department of Chemistry , COMSATS Institute of Information Technology , Abbottabad 22060 , Pakistan
| | - Lan-Chun Zhang
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products , Kunming Medical University , Kunming 650500 , P. R. China
| | - Cheng-Feng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , P. R. China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , P. R. China
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108
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Simões D, Miguel SP, Ribeiro MP, Coutinho P, Mendonça AG, Correia IJ. Recent advances on antimicrobial wound dressing: A review. Eur J Pharm Biopharm 2018; 127:130-141. [DOI: 10.1016/j.ejpb.2018.02.022] [Citation(s) in RCA: 527] [Impact Index Per Article: 75.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/07/2018] [Accepted: 02/16/2018] [Indexed: 12/15/2022]
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109
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Tortosa M, Cartea M, Rodríguez V, Velasco P. ‘Omic’ profiling of B. oleracea challenged with Xanthomonas campestris pv. campestris. ACTA HORTICULTURAE 2018. [PMID: 0 DOI: 10.17660/actahortic.2018.1202.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
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110
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Koh LD, Yeo J, Lee YY, Ong Q, Han M, Tee BCK. Advancing the frontiers of silk fibroin protein-based materials for futuristic electronics and clinical wound-healing (Invited review). MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018. [DOI: 10.1016/j.msec.2018.01.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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111
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Xavier-Junior FH, Maciuk A, Rochelle do Vale Morais A, Alencar EDN, Garcia VL, Tabosa do Egito ES, Vauthier C. Development of a Gas Chromatography Method for the Analysis of Copaiba Oil. J Chromatogr Sci 2018; 55:969-978. [PMID: 28977501 DOI: 10.1093/chromsci/bmx065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 07/19/2017] [Indexed: 01/15/2023]
Abstract
A rapid, simple, precise and economic method for the quantification of main compounds of copaiba resin and essential oils (Copaifera langsdorffii Desf.) by gas chromatography (GC) has been developed and validated. Copaiba essential oil was extracted by hydrodistillation from the copaiba resin. Resin derivatization allowed the identification of diterpenes compounds. A gas chromatography-mass spectroscopy (GC/MS) method was developed to identify compounds composing the copaiba resin and essential oil. Then the GC/MS method was transposed to be used with a flame ionization detector (FID) and validated as a quantitative method. A good correlation between GC/MS and GC/FID was obtained favoring method transposition. The method showed satisfactory sensitivity, specificity, linearity, precision, accuracy, limit of detection and limit of quantitation for β-caryophyllene, α-humulene and caryophyllene oxide analyses in copaiba resin and essential oils. The main compounds identified in copaiba essential oil were β-bisabolene (23.6%), β-caryophyllene (21.7%) and α-bergamotene (20.5%). Copalic acid methyl ester (15.6%), β-bisabolene (12.3%), β-caryophyllene (7.9%), α-bergamotene (7.1%) and labd-8(20)-ene-15,18-dioic acid methyl ester (6.7%) were diterpenes identified from the derivatized copaiba resin. The proposed method is suitable for a reliable separation, identification and quantification of compounds present in copaiba resin and essential oil. It could be proposed as an analytical method for the analysis of copaiba oil fraction in raw and essential oil parent extracts and after they have been incorporate in pharmaceutical formulations.
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Affiliation(s)
- Francisco Humberto Xavier-Junior
- Institut Galien Paris Sud, CNRS UMR 8612, Faculté de Pharmacie, University Paris-Sud, Université Paris-Saclay, Five Rue J.B. Clément, 92296 Chatenay-Malabry Cedex, France.,Centro de Ciências da Saúde, Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Universidade Federal do Rio Grande do Norte, Av. Gal. Gustavo Cordeiro de Farias, S/N, Petrópolis 59010-180, Natal, RN, Brazil
| | - Alexandre Maciuk
- Laboratoire de Pharmacognosie - UMR CNRS 8076 BioCIS - Faculté de Pharmacie, Université Paris-Sud, 92296 Chatenay-Malabry Cedex, France
| | - Andreza Rochelle do Vale Morais
- Institut Galien Paris Sud, CNRS UMR 8612, Faculté de Pharmacie, University Paris-Sud, Université Paris-Saclay, Five Rue J.B. Clément, 92296 Chatenay-Malabry Cedex, France.,Centro de Ciências da Saúde, Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Universidade Federal do Rio Grande do Norte, Av. Gal. Gustavo Cordeiro de Farias, S/N, Petrópolis 59010-180, Natal, RN, Brazil
| | - Everton do Nascimento Alencar
- Centro de Ciências da Saúde, Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Universidade Federal do Rio Grande do Norte, Av. Gal. Gustavo Cordeiro de Farias, S/N, Petrópolis 59010-180, Natal, RN, Brazil
| | - Vera Lucia Garcia
- Universidade Estadual de Campinas (UNICAMP) - Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Rua Alexandre Cazelatto, 999, Vila Betel, Paulínia, SP, Brazil
| | - Eryvaldo Sócrates Tabosa do Egito
- Centro de Ciências da Saúde, Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Universidade Federal do Rio Grande do Norte, Av. Gal. Gustavo Cordeiro de Farias, S/N, Petrópolis 59010-180, Natal, RN, Brazil
| | - Christine Vauthier
- Institut Galien Paris Sud, CNRS UMR 8612, Faculté de Pharmacie,University Paris-Sud, Université Paris-Saclay, Five Rue J.B. Clément, 92296 Chatenay-Malabry Cedex, France
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112
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Gonçalves R, Ayres VFS, Carvalho CE, Souza MGM, Guimarães AC, Corrêa GM, Martins CHG, Takeara R, Silva EO, Crotti AEM. Chemical Composition and Antibacterial Activity of the Essential Oil of Vitex agnus-castus L. (Lamiaceae). AN ACAD BRAS CIENC 2018; 89:2825-2832. [PMID: 29267797 DOI: 10.1590/0001-3765201720170428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 08/07/2017] [Indexed: 11/22/2022] Open
Abstract
Abnormal multiplication of oral bacteria causes dental caries and dental plaque. These diseases continue to be major public health concerns worldwide, mainly in developing countries. In this study, the chemical composition and antimicrobial activity of the essential oil of Vitex agnus-castus leaves (VAC‒EO) collected in the North of Brazil against a representative panel of cariogenic bacteria were investigated. The antimicrobial activity of VAC-EO was evaluated in terms of its minimum inhibitory concentration (MIC) values by using the broth microdilution method in 96-well microplates. The chemical constituents of VAC-EO were identified by gas chromatography (GC‒FID) and gas chromatography‒mass spectrometry (GC‒MS). VAC‒EO displayed some activity against all the investigated oral pathogens; MIC values ranged from 15.6 to 200 μg/mL. VAC-EO had promising activity against Streptococcus mutans (MIC= 15.6 μg/mL), Lactobacillus casei (MIC= 15.6 μg/mL), and Streptococcus mitis (MIC= 31.2 μg/mL). The compounds 1,8-cineole (23.8%), (E)-β-farnesene (14.6%), (E)-caryophyllene (12.5%), sabinene (11.4%), and α-terpinyl acetate (7.7%) were the major chemical constituents of VAC‒EO. VAC-EO displays antimicrobial activity against cariogenic bacteria. The efficacy of VAC-EO against S. mutans is noteworthy and should be further investigated.
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Affiliation(s)
- Regiane Gonçalves
- Instituto de Ciências Exatas e Tecnológicas, Universidade Federal do Amazonas, Rua Nossa Senhora do Rosário, 3863, Tiradentes, 69103-128 Itacotiara, AM, Brazil
| | - Vanessa F S Ayres
- Instituto de Ciências Exatas e Tecnológicas, Universidade Federal do Amazonas, Rua Nossa Senhora do Rosário, 3863, Tiradentes, 69103-128 Itacotiara, AM, Brazil
| | - Carlos E Carvalho
- Instituto de Ciências Exatas e Tecnológicas, Universidade Federal do Amazonas, Rua Nossa Senhora do Rosário, 3863, Tiradentes, 69103-128 Itacotiara, AM, Brazil
| | - Maria G M Souza
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Av. Dr. Armando Salles de Oliveira, 201, Parque Universitário, 14404-600 Franca, SP, Brazil
| | - Anderson C Guimarães
- Instituto de Ciências Exatas e Tecnológicas, Universidade Federal do Amazonas, Rua Nossa Senhora do Rosário, 3863, Tiradentes, 69103-128 Itacotiara, AM, Brazil
| | - Geone M Corrêa
- Instituto de Ciências Exatas e Tecnológicas, Universidade Federal do Amazonas, Rua Nossa Senhora do Rosário, 3863, Tiradentes, 69103-128 Itacotiara, AM, Brazil
| | - Carlos H G Martins
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Av. Dr. Armando Salles de Oliveira, 201, Parque Universitário, 14404-600 Franca, SP, Brazil
| | - Renata Takeara
- Instituto de Ciências Exatas e Tecnológicas, Universidade Federal do Amazonas, Rua Nossa Senhora do Rosário, 3863, Tiradentes, 69103-128 Itacotiara, AM, Brazil
| | - Eliane O Silva
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-115 Salvador, BA, Brazil
| | - Antônio E M Crotti
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14040-901 Ribeirão Preto, SP, Brazil
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113
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Silva FC, Rodrigues VG, Duarte LP, Lula IS, Sinisterra RD, Vieira-Filho SA, Rodrigues RAL, Kroon EG, Oliveira PL, Farias LM, Magalhães PP, Silva GDF. Antidiarrheal activity of extracts from Maytenus gonoclada and inhibition of Dengue virus by lupeol. AN ACAD BRAS CIENC 2018; 89:1555-1564. [PMID: 28954173 DOI: 10.1590/0001-3765201720160046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 06/20/2016] [Indexed: 12/29/2022] Open
Abstract
Diarrhea is an infectious disease caused by bacterial, virus, or protozoan, and dengue is caused by virus, included among the neglected diseases in several underdeveloped and developing countries, with an urgent demand for new drugs. Considering the antidiarrheal potential of species of Maytenus genus, a phytochemical investigation followed by antibacterial activity test with extracts of branches and heartwood and bark of roots from Maytenus gonoclada were conducted. Moreover, due the frequency of isolation of lupeol from Maytenus genus the antiviral activity against Dengue virus and cytotoxicity of lupeol and its complex with β-cyclodextrins were also tested. The results indicated the bioactivity of ethyl acetate extract from branches and ethanol extract from heartwood of roots of M. gonoclada against diarrheagenic bacteria. The lupeol showed potent activity against Dengue virus and low cytotoxicity in LLC-MK2 cells, but its complex with β-cyclodextrin was inactive. Considering the importance of novel and selective antiviral drug candidates the results seem to be promising.
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Affiliation(s)
- Fernando C Silva
- Universidade do Estado de Minas Gerais, Departamento das Licenciaturas, Avenida Paraná, 3001, 35501-170 Divinópolis, MG, Brazil
| | - Vanessa G Rodrigues
- Universidade Federal de Minas Gerais, Departamento de Química, Instituto de Ciências Exatas, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Lucienir P Duarte
- Universidade Federal de Minas Gerais, Departamento de Química, Instituto de Ciências Exatas, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Ivana S Lula
- Universidade Federal de Minas Gerais, Departamento de Química, Instituto de Ciências Exatas, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Ruben D Sinisterra
- Universidade Federal de Minas Gerais, Departamento de Química, Instituto de Ciências Exatas, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Sidney A Vieira-Filho
- Departamento de Farmácia, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil
| | - Rodrigo A L Rodrigues
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Erna G Kroon
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Patrícia L Oliveira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Luiz M Farias
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Paula P Magalhães
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Grácia D F Silva
- Universidade Federal de Minas Gerais, Departamento de Química, Instituto de Ciências Exatas, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
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LEMES RAIANES, ALVES CASSIAC, ESTEVAM ELISÂNGELAB, SANTIAGO MARIANAB, MARTINS CARLOSH, SANTOS TAINÁCDOS, CROTTI ANTÔNIOE, MIRANDA MAYKERL. Chemical composition and antibacterial activity of essential oils from Citrus aurantifolia leaves and fruit peel against oral pathogenic bacteria. ACTA ACUST UNITED AC 2018; 90:1285-1292. [DOI: 10.1590/0001-3765201820170847] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 12/20/2017] [Indexed: 01/03/2023]
Affiliation(s)
- RAIANE S. LEMES
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Brazil
| | | | | | | | | | | | | | - MAYKER L.D. MIRANDA
- Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais, Brazil
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115
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Kouhkheil R, Fridoni M, Piryaei A, Taheri S, Chirani AS, Anarkooli IJ, Nejatbakhsh R, Shafikhani S, Schuger LA, Reddy VB, Ghoreishi SK, Jalalifirouzkouhi R, Chien S, Bayat M. The effect of combined pulsed wave low‐level laser therapy and mesenchymal stem cell‐conditioned medium on the healing of an infected wound with methicillin‐resistant
Staphylococcal aureus
in diabetic rats. J Cell Biochem 2018; 119:5788-5797. [DOI: 10.1002/jcb.26759] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 01/25/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Reza Kouhkheil
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Mohammadjavad Fridoni
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Abbas Piryaei
- Department of Biology and Anatomical Sciences, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Soudabeh Taheri
- Department of Medical Microbiology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Alireza S. Chirani
- Department of Medical Microbiology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Iraj J. Anarkooli
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Reza Nejatbakhsh
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Sasha Shafikhani
- Department of Medicine, Division of Hematology/OncologyRush University Medical CenterChicagoIllinois
- Department of Immunology/MicrobiologyCancer CenterChicagoIllinois
| | | | - Vijaya B. Reddy
- Pathology DepartmentRush University Medical CenterChicagoIllinois
| | | | | | - Sufan Chien
- Noveratech LLC of LouisvilleLouisvilleKentucky
- Department of SurgeryUniversity of LouisvilleLouisvilleKentucky
| | - Mohammad Bayat
- Cellular and Molecular Biology Research Center, and Department of Biology and Anatomical Sciences, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
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116
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Nguenang GS, Mbaveng AT, Fankam AG, Manekeng HT, Nayim P, Wamba BEN, Kuete V. Tristemma hirtum and Five Other Cameroonian Edible Plants with Weak or No Antibacterial Effects Modulate the Activities of Antibiotics against Gram-Negative Multidrug-Resistant Phenotypes. ScientificWorldJournal 2018; 2018:7651482. [PMID: 29765275 PMCID: PMC5885400 DOI: 10.1155/2018/7651482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/10/2018] [Accepted: 02/19/2018] [Indexed: 01/21/2023] Open
Abstract
In order to contribute to the fight against infectious diseases, the in vitro antibacterial activity and the antibiotic-potentiating effects of Tristemma hirtum and five other Cameroonian edible plants have been evaluated against Gram-negative multidrug-resistant (MDR) phenotypes. The microdilution method was used to evaluate the bacterial susceptibility of the extracts and their combination to common antibiotics. The phytochemical screening of the extracts was carried out according to standard methods. Phytochemical analysis of the extracts revealed the presence of alkaloids, triterpenes, steroids, and polyphenols, including flavonoids in most of the tested extracts. The entire tested extracts showed moderate (512 μg/mL ≤ MIC ≤ 2048 μg/mL) to weak (MIC > 2048 μg/mL) antibacterial activities against the tested bacteria. Furthermore, extracts of leaf of Tristemma hirtum and pericarps of Raphia hookeri (at their MIC/2 and MIC/4) strongly potentiated the activities of all antibiotics used in the study, especially those of chloramphenicol (CHL), ciprofloxacin (CIP), kanamycin (KAN), and tetracycline (TET) against 70% (7/10) to 100% (10/10) of the tested MDR bacteria, with the modulating factors ranging from 2 to 128. The results of this study suggest that extracts from leaves of Tristemma hirtum and pericarps of Raphia hookeri can be sources of plant-derived products with antibiotic modifying activity.
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Affiliation(s)
- Gaëlle S. Nguenang
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Armelle T. Mbaveng
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Aimé G. Fankam
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Hermione T. Manekeng
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Paul Nayim
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Brice E. N. Wamba
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Victor Kuete
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
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117
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Weber LD, Scur MC, Souza JGDLD, Toledo AG, Pinto FGDS. Antimicrobial activity and phytochemical prospection of vegetal extracts of Ocotea silvestris Vattimo-Gil and Ocotea diospyrifolia (Meisn.) against serotypes of Salmonella of poultry origin. REVISTA BRASILEIRA DE SAÚDE E PRODUÇÃO ANIMAL 2018. [DOI: 10.1590/s1519-99402018000100011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
SUMMARY The aim of this work was to evaluate the antimicrobial activity of plant extracts Ocotea silvestris Vattimo-Gil and Ocotea diospyrifolia (Meisn.) Mez against 10 serotypes Salmonella enterica of poultry origin of the highest incidence in the western region of Paraná, as well as to perform the phytochemical screening of the compounds of the two species. After obtaining the aqueous extract and the organic extracts (ethyl alcohol, ethyl acetate and hexane) was determined Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) by technique microdilution broth. Phytochemical prospecting performed according to qualitative methodology of precipitation and colorimetry. The extracts presented inhibitory and bactericidal activity in different concentrations (200 to 25 mg.mL-1) against the serotypes of Salmonella, varying according to the solvent extractor. The ethyl acetate extract presented the best results, followed by the alcoholic, aqueous and hexane extract. It is noteworthy that studies of antimicrobial activity with vegetable extract within the genus Ocotea are scarce, however, the Lauraceae family presents significant biological activities, mainly related to its essential oils. Phytochemical prospecting detected the presence of steroids and alkaloids in both Ocotea species, which may justify the antimicrobial potential found for Salmonella serotypes. It is concluded that these plants represent an alternative for the control of Salmonella in the poultry sector, reflecting a new perspective for studies with natural products.
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118
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Fukui MJ, Dias HJ, Severiano ME, de Souza MGM, de Oliveira PF, Ambrósio SR, Martins CHG, Tavares DC, Crotti AEM. Antimicrobial and Cytotoxic Activity of Dihydrobenzofuran Neolignans. ChemistrySelect 2018. [DOI: 10.1002/slct.201703024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Murilo J. Fukui
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Herbert J. Dias
- Departamento de Química; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; CEP 14040-901 Ribeirão Preto, SP Brazil
| | - Marcela E. Severiano
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Maria G. M. de Souza
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Pollyanna F. de Oliveira
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Sérgio R. Ambrósio
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Carlos H. G. Martins
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Denise C. Tavares
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas; Universidade de Franca; 14404-600 Franca, SP Brazil
| | - Antônio E. M. Crotti
- Departamento de Química; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; CEP 14040-901 Ribeirão Preto, SP Brazil
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119
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Reen FJ, Gutiérrez-Barranquero JA, Parages ML, O Gara F. Coumarin: a novel player in microbial quorum sensing and biofilm formation inhibition. Appl Microbiol Biotechnol 2018; 102:2063-2073. [PMID: 29392389 PMCID: PMC5814477 DOI: 10.1007/s00253-018-8787-x] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/15/2018] [Accepted: 01/15/2018] [Indexed: 11/23/2022]
Abstract
Antibiotic resistance is a growing threat worldwide, causing serious problems in the treatment of microbial infections. The discovery and development of new drugs is urgently needed to overcome this problem which has greatly undermined the clinical effectiveness of conventional antibiotics. An intricate cell-cell communication system termed quorum sensing (QS) and the coordinated multicellular behaviour of biofilm formation have both been identified as promising targets for the treatment and clinical management of microbial infections. QS systems allow bacteria to adapt rapidly to harsh conditions, and are known to promote the formation of antibiotic tolerant biofilm communities. It is well known that biofilm is a recalcitrant mode of growth and it also increases bacterial resistance to conventional antibiotics. The pharmacological properties of coumarins have been well described, and these have included several that possess antimicrobial properties. More recently, reports have highlighted the potential role of coumarins as alternative therapeutic strategies based on their ability to block the QS signalling systems and to inhibit the formation of biofilms in clinically relevant pathogens. In addition to human infections, coumarins have also been found to be effective in controlling plant pathogens, infections in aquaculture, food spoilage and in reducing biofouling caused by eukaryotic organisms. Thus, the coumarin class of small molecule natural product are emerging as a promising strategy to combat bacterial infections in the new era of antimicrobial resistance.
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Affiliation(s)
- F Jerry Reen
- School of Microbiology, University College Cork, Cork, Ireland.,BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| | - José A Gutiérrez-Barranquero
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - María L Parages
- Departamento de Ecología, Facultad de Ciencias, Universidad de Málaga, 29071, Málaga, Spain
| | - Fergal O Gara
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland. .,Human Microbiome Programme, School of Biomedical Sciences, Curtin Health Innovation Research Institute (CHIRI), Curtin University, Perth, WA, Australia.
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120
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Cai X, Guo L, Pei F, Chang X, Zhang R. Polyphyllin G exhibits antimicrobial activity and exerts anticancer effects on human oral cancer OECM-1 cells by triggering G2/M cell cycle arrest by inactivating cdc25C-cdc2. Arch Biochem Biophys 2018; 644:93-99. [PMID: 29352966 DOI: 10.1016/j.abb.2018.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/09/2018] [Accepted: 01/12/2018] [Indexed: 11/29/2022]
Abstract
Plant natural products have long been considered to be important sources of bioactive molecules. A large number of antimicrobial and anticancer agents have been isolated form plants. In the present study we evaluated the antimicrobial and anticancer activity of a plant derived secondery metabolite, Polyphyllin G. The results of antibacterial assays showed that Polyphyllin G prevented the growth of both Gram-positive and Gram-negative bacteria with minimum inhibitory concentrations (MICs) ranging from 13.1 to 78 μg/ml. Antifungal activity measured as inhibition of mycelium growth ranged between 38.32 and 56.50%. Further Polyphyllin G was also evaluated against a panel of cancer cell lines. The IC50 of Polyphyllin G ranged from 10 to 65 μM. However the IC50 of Polyphyllin G was found to be comparatively high (120 μM) against the normal FR2 cancer cell line. The lowest IC50 of 10 μM was found against the oral cancer cell line OECM-1. Therefore further studies were carried out on this cell line only. Our results indicated that Polyphyllin G induced cell arrest in oral cancer OECM-1 cells by inactivation of cdc25C-cdc22 via ATM-Chk 1/2 stimulation. Therefore, we propose that Polyphyllin G might prove a lead molecule in the management of oral cancers and at the same time may prevent the growth of opportunistic microbes.
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Affiliation(s)
- Xiaoqing Cai
- Oral and Maxillofacial Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, 450000, PR China.
| | - Lele Guo
- Oral and Maxillofacial Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, 450000, PR China
| | - Fei Pei
- Oral and Maxillofacial Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, 450000, PR China
| | - Xiaoyun Chang
- Oral and Maxillofacial Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, 450000, PR China
| | - Rui Zhang
- Oral and Maxillofacial Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, 450000, PR China
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121
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Kemme M, Heinzel-Wieland R. Quantitative Assessment of Antimicrobial Activity of PLGA Films Loaded with 4-Hexylresorcinol. J Funct Biomater 2018; 9:E4. [PMID: 29324696 PMCID: PMC5872090 DOI: 10.3390/jfb9010004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 11/17/2022] Open
Abstract
Profound screening and evaluation methods for biocide-releasing polymer films are crucial for predicting applicability and therapeutic outcome of these drug delivery systems. For this purpose, we developed an agar overlay assay embedding biopolymer composite films in a seeded microbial lawn. By combining this approach with model-dependent analysis for agar diffusion, antimicrobial potency of the entrapped drug can be calculated in terms of minimum inhibitory concentrations (MICs). Thus, the topical antiseptic 4-hexylresorcinol (4-HR) was incorporated into poly(lactic-co-glycolic acid) (PLGA) films at different loadings up to 3.7 mg/cm² surface area through a solvent casting technique. The antimicrobial activity of 4-HR released from these composite films was assessed against a panel of Gram-negative and Gram-positive bacteria, yeasts and filamentous fungi by the proposed assay. All the microbial strains tested were susceptible to PLGA-4-HR films with MIC values down to 0.4% (w/w). The presented approach serves as a reliable method in screening and quantifying the antimicrobial activity of polymer composite films. Moreover, 4-HR-loaded PLGA films are a promising biomaterial that may find future application in the biomedical and packaging sector.
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Affiliation(s)
- Michael Kemme
- Department of Chemical Engineering and Biotechnology, Hochschule Darmstadt, University of Applied Sciences, Stephanstrasse 7, 64295 Darmstadt, Germany.
| | - Regina Heinzel-Wieland
- Department of Chemical Engineering and Biotechnology, Hochschule Darmstadt, University of Applied Sciences, Stephanstrasse 7, 64295 Darmstadt, Germany.
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122
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Fu R, Martin C, Zhang Y. Next-Generation Plant Metabolic Engineering, Inspired by an Ancient Chinese Irrigation System. MOLECULAR PLANT 2018; 11:47-57. [PMID: 28893713 DOI: 10.1016/j.molp.2017.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/06/2017] [Accepted: 09/01/2017] [Indexed: 05/03/2023]
Abstract
Specialized secondary metabolites serve not only to protect plants against abiotic and biotic challenges, but have also been used extensively by humans to combat diseases. Due to the great importance of medicinal plants for health, we need to find new and sustainable ways to improve the production of the specialized metabolites. In addition to direct extraction, recent progress in metabolic engineering of plants offers an alternative supply option. We argue that metabolic engineering for producing the secondary metabolites in plants may have distinct advantages over microbial production platforms, and thus propose new approaches of plant metabolic engineering, which are inspired by an ancient Chinese irrigation system. Metabolic engineering strategies work at three levels: introducing biosynthetic genes, using transcription factors, and improving metabolic flux including increasing the supply of precursors, energy, and reducing power. In addition, recent progress in biotechnology contributes markedly to better engineering, such as the use of specific promoters and the deletion of competing branch pathways. We propose that next-generation plant metabolic engineering will improve current engineering strategies, for the purpose of producing valuable metabolites in plants on industrial scales.
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Affiliation(s)
- Rao Fu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Cathie Martin
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK
| | - Yang Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China.
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123
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Endophytic Fungi and Bioactive Metabolites Production: An Update. Microb Biotechnol 2018. [DOI: 10.1007/978-981-10-7140-9_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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124
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Mushtaq S, Shah AM, Shah A, Lone SA, Hussain A, Hassan QP, Ali MN. Bovine mastitis: An appraisal of its alternative herbal cure. Microb Pathog 2017; 114:357-361. [PMID: 29233776 DOI: 10.1016/j.micpath.2017.12.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/07/2017] [Accepted: 12/08/2017] [Indexed: 11/29/2022]
Abstract
Bovine mastitis is globally recognized as the most common and costly disease affecting dairy herds. The disease causes huge financial losses to dairy industries by reduced yield and milk quality, deaths and culling of affected cows and also by associated treatment costs. The disease occurs due to invasion of the mammary glands by pathogenic bacteria followed by their multiplication in the milk producing tissues. The most common treatment method available against bovine mastitis is the intra-mammary infusion of antibiotics. However, their use is associated with the problem of antimicrobial resistance. This scenario has made search for alternative treatment approaches necessary. Medicinal plants with their well-established history are an excellent natural product resource used as an alternative therapy. Antibacterial agents from plants can act as important sources of novel antibiotics, efflux pump inhibitors, compounds that target bacterial virulence or can be used in combination with existing drugs. The plants form an essential component of ethno-veterinary medicine used in the treatment of different diseases like bovine mastitis. This review article attempts to provide an overview of the different medicinal plants used in the treatment of bovine mastitis. Antimicrobial studies of these plant species and some of their isolated constituents have been reviewed in detail. It highlights the logic and precedence behind mining this important natural product resource. Our own research findings in this direction and future scope of research are also discussed briefly.
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Affiliation(s)
- Saleem Mushtaq
- Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India; Centre of Research for Development (CORD), University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir 190006, India
| | - Aabid Manzoor Shah
- Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Aiyatullah Shah
- Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Sajad Ahmad Lone
- Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Aehtesham Hussain
- Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Qazi Parvaiz Hassan
- Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India.
| | - Md Niamat Ali
- Centre of Research for Development (CORD), University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir 190006, India
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Vinokur AI, White PB, Fotsing MT, Arderne C, Ndinteh DT, Vestling MM, Guzei IA. Deciphering composition and connectivity of a natural product with the assistance of MS and 2D NMR. Acta Crystallogr C Struct Chem 2017; 73:994-1002. [PMID: 29111532 PMCID: PMC5674227 DOI: 10.1107/s2053229617014966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/16/2017] [Indexed: 11/11/2022] Open
Abstract
A complementary application of three analytical techniques, viz. multidimensional nuclear magnetic resonance spectroscopy (NMR), mass spectrometry (MS), and single-crystal X-ray diffractometry was required to identify and refine two natural products isolated from Millettia versicolor and solvent of crystallization. The two compounds, namely 3-(2H-1,3-benzodioxol-5-yl)-6-methoxy-8,8-dimethyl-4H,8H-pyrano[2,3-h]chromen-4-one, or durmillone, (I), and (2E)-1-(4-{[(2E)-3,7-dimethylocta-2,6-dien-1-yl]oxy}-2-hydroxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one, (II), could not be separated by routine column chromatography and cocrystallized in a 2:1 ratio with 0.13 molecules of ethanol solvent. Compound (II) and ethanol could not be initially identified by single-crystal X-ray analysis due to complex disorder in the aliphatic chain region of (II). Mass spectrometry ensured that (II) represented only one species disordered over several positions in the solid state, rather than several species cohabitating on the same crystallographic site. The atomic identification and connectivity in (II) were established by several 2D (two-dimensional) NMR techniques, which in turn relied on a knowledge of its exact mass. The derived connectivity was then used in the single-crystal analysis to model the disorder of the aliphatic chain in (II) over three positions and allowed identification of a partially occupied ethanol solvent molecule that was disordered over an inversion center. The disordered moieties were refined with restraints and constraints.
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Affiliation(s)
- Anastasiya I. Vinokur
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Ave, Madison, WI 53706, USA
| | - Paul B. White
- Institute for Molecules and Materials, Radboud University, Nijmegen, Heyendaalseweg 135, 6525 AJ, The Netherlands
| | | | - Charmaine Arderne
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Derek Tantoh Ndinteh
- Department of Applied Chemistry, University of Johannesburg, PO Box 17011, Doornfontein, Johannesburg 2028, South Africa
| | - Martha M. Vestling
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Ave, Madison, WI 53706, USA
| | - Ilia A. Guzei
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Ave, Madison, WI 53706, USA
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa
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126
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Synthesis and antibacterial activity of new symmetric polyoxygenated dibenzofurans. Eur J Med Chem 2017; 141:178-187. [PMID: 29031065 DOI: 10.1016/j.ejmech.2017.09.062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/08/2017] [Accepted: 09/27/2017] [Indexed: 11/23/2022]
Abstract
A series of symmetric polyoxygenated dibenzofurans with 2-methylbutyril moieties at C-4 and C-6 were obtained from commercial phloroglucinol through a sequence of reactions that include monoacylation, iodination, Suzuki-Miyaura coupling, oxidative dimerization and cyclization. Some of the compounds obtained were active against Gram-positive bacteria, including multiresistant Staphylococcus aureus clinical isolates. The dibenzofuran 28 with propyl chains at C-2 and C-8 exhibited the best antibacterial activity with values comparable to those of the natural dibenzofuran achyrofuran. From the obtained results some structure-activity relationships were outlined.
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127
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Zhang F, Wang J, Zhang X, Meng X, Chen B. A Regioselective Synthesis of 2,5-Diaryl Oxazoles via TsOH/I2
-Mediated Cascade Cyclization. ChemistrySelect 2017. [DOI: 10.1002/slct.201701390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fangdong Zhang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
| | - Jing Wang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
| | - Xueguo Zhang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
| | - Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P. R. of China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
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128
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The antibiotic activity and mechanisms of sugar beet ( Beta vulgaris ) molasses polyphenols against selected food-borne pathogens. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.04.063] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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129
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Ngezahayo J, Ribeiro SO, Fontaine V, Hari L, Stévigny C, Duez P. In vitro Study of Five Herbs Used Against Microbial Infections in Burundi. Phytother Res 2017; 31:1571-1578. [PMID: 28816369 DOI: 10.1002/ptr.5887] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 07/16/2017] [Accepted: 07/18/2017] [Indexed: 11/10/2022]
Abstract
The emergence of antimicrobial resistant infectious diseases remains a major threat to worldwide public health, in developed and in developing countries. Therefore, new antimicrobial agents acting by new mechanisms of action are urgently needed. As plants used in traditional medicine may help to overcome these problems, Justicia subsessilis, Platostoma rotundifolium, Pavetta ternifolia, Stomatanthes africanus, and Virectaria major (plants highly cited to be used against microbial infections in traditional Burundian medicine) were studied to assess their traditional use efficacy. We conducted a preliminary phytochemical screening of the extracts, as well as their direct and indirect (effect on antibiotic resistance) antibacterial activity on four bacterial strains (Staphylococcus sp. and Escherichia coli) by broth microdilution methods. All five medicinal plants investigated in this work were found to have direct antibacterial activity against all tested bacterial strains (minimum inhibitory concentration = 62.5-1000 μg/mL) that may support the use of these species in traditional Burundian medicine. Extracts (with no direct antibacterial activity), tested at 200 μg/mL, decreased the MIC values of β-lactams and aminoglycoside antibiotics by a factor of 2 to 64-fold. These interactions between plant extracts and antibiotics could open an avenue of research against antibiotic resistance. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Jérémie Ngezahayo
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050, Bruxelles, Belgium.,Centre de Recherche Universitaire en Pharmacopée et Médecine Traditionnelle (CRUPHAMET), Faculté des Sciences, Université du Burundi, BP 2700, Bujumbura, Burundi
| | - Sofia Oliveira Ribeiro
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050, Bruxelles, Belgium
| | - Véronique Fontaine
- Unité de Microbiologie Pharmaceutique et Hygiène, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/02, Boulevard du Triomphe, 1050, Bruxelles, Belgium
| | - Léonard Hari
- Centre de Recherche Universitaire en Pharmacopée et Médecine Traditionnelle (CRUPHAMET), Faculté des Sciences, Université du Burundi, BP 2700, Bujumbura, Burundi
| | - Caroline Stévigny
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050, Bruxelles, Belgium
| | - Pierre Duez
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050, Bruxelles, Belgium.,Service de Chimie Thérapeutique et de Pharmacognosie, Université de Mons (UMONS), Bât. 6, Chemin du Champ de Mars 25, 7000, Mons, Belgium
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130
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Soares MH, Dias HJ, Vieira TM, de Souza MGM, Cruz AFF, Badoco FR, Nicolella HD, Cunha WR, Groppo M, Martins CHG, Tavares DC, Magalhães LG, Crotti AEM. Chemical Composition, Antibacterial, Schistosomicidal, and Cytotoxic Activities of the Essential Oil of Dysphania ambrosioides (L.) Mosyakin & Clemants (Chenopodiaceae). Chem Biodivers 2017; 14. [PMID: 28504841 DOI: 10.1002/cbdv.201700149] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 05/12/2017] [Indexed: 01/18/2023]
Abstract
We have investigated the chemical composition and the antibacterial activity of the essential oil of Dysphania ambrosioides (L.) Mosyakin & Clemants (Chenopodiaceae) (DA-EO) against a representative panel of cariogenic bacteria. We have also assessed the in vitro schistosomicidal effects of DA-EO on Schistosoma mansoni and its cytotoxicity to GM07492-A cells in vitro. Gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS) revealed that the monoterpenes cis-piperitone oxide (35.2%), p-cymene (14.5%), isoascaridole (14.1%), and α-terpinene (11.6%) were identified by as the major constituents of DA-EO. DA-EO displayed weak activity against Streptococcus sobrinus and Enterococcus faecalis (minimum inhibitory concentration (MIC) = 1000 μg/ml). On the other hand, DA-EO at 25 and 12.5 μg/ml presented remarkable schistosomicidal action in vitro and killed 100% of adult worm pairs within 24 and 72 h, respectively. The LC50 values of DA-EO were 6.50 ± 0.38, 3.66 ± 1.06, and 3.65 ± 0.76 μg/ml at 24, 48, and 72 h, respectively. However, DA-EO at concentrations higher than 312.5 μg/ml significantly reduced the viability of GM07492-A cells (IC50 = 207.1 ± 4.4 μg/ml). The selectivity index showed that DA-EO was 31.8 times more toxic to the adult S. mansoni worms than GM07492-A cells. Taken together, these results demonstrate the promising schistosomicidal potential of the essential oil of Dysphania ambrosioides.
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Affiliation(s)
- Marina H Soares
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Herbert J Dias
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Tatiana M Vieira
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Maria G M de Souza
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Ana F F Cruz
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Fernanda R Badoco
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Heloiza D Nicolella
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Wilson R Cunha
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Milton Groppo
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Carlos H G Martins
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Denise C Tavares
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Lizandra G Magalhães
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil
| | - Antônio E M Crotti
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, CEP 14040-600, Franca, SP, Brazil.,Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
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131
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Sun Y, Sun F, Feng W, Qiu X, Liu Y, Yang B, Chen Y, Xia P. Hyperoside inhibits biofilm formation of Pseudomonas aeruginosa. Exp Ther Med 2017; 14:1647-1652. [PMID: 28810631 DOI: 10.3892/etm.2017.4641] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/21/2016] [Indexed: 11/06/2022] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a common pathogen in hospital-acquired infection and is readily able to form biofilms. Due to its high antibiotic resistance, traditional antibacterial treatments exert a limited effect on P. aeruginosa biofilm infections. It has been indicated that hyperoside inhibits P. aeruginosa PAO1 (PAO1) biofilm formation without affecting growth. Therefore, the current study examined the biofilm formation and quorum sensing (QS) system of PAO1 in the presence of hyperoside. Confocal laser scanning microscopy analysis demonstrated that hyperoside significantly inhibited biofilm formation. It was also observed that hyperoside inhibited twitching motility in addition to adhesion. Data from reverse transcription-quantitative polymerase chain reaction indicated that hyperoside inhibited the expression of lasR, lasI, rhlR and rhlI genes. These results suggest that the QS-inhibiting effect of hyperoside may lead to a reduction in biofilm formation. However, the precise mechanism of hyperoside on P. aeruginosa pathogenicity remains unclear and requires elucidation in additional studies.
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Affiliation(s)
- Yixuan Sun
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Fengjun Sun
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Wei Feng
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Xuewen Qiu
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yao Liu
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Bo Yang
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yongchuan Chen
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Peiyuan Xia
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
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132
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Ma RY, Chen YF, Wang JR, Du ZT. Synthesis of Xanthones by Palladium-Catalyzed Tandem Carbonylation/C-H Activation via 2-Iodo Diaryl Ethers. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Rui-Yue Ma
- College of Chemistry and Pharmacy; Northwest A&F University; Yangling 712100 Shaanxi Province P. R. China
| | - Ya-Fang Chen
- College of Chemistry and Pharmacy; Northwest A&F University; Yangling 712100 Shaanxi Province P. R. China
| | - Jun-Ru Wang
- College of Chemistry and Pharmacy; Northwest A&F University; Yangling 712100 Shaanxi Province P. R. China
| | - Zhen-Ting Du
- College of Chemistry and Pharmacy; Northwest A&F University; Yangling 712100 Shaanxi Province P. R. China
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133
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Correa VG, Gonçalves GA, de Sá-Nakanishi AB, Ferreira ICFR, Barros L, Dias MI, Koehnlein EA, de Souza CGM, Bracht A, Peralta RM. Effects of in vitro digestion and in vitro colonic fermentation on stability and functional properties of yerba mate (Ilex paraguariensis A. St. Hil.) beverages. Food Chem 2017; 237:453-460. [PMID: 28764019 DOI: 10.1016/j.foodchem.2017.05.125] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 05/23/2017] [Accepted: 05/24/2017] [Indexed: 12/29/2022]
Abstract
Yerba mate (Ilex paraguariensis) is a plant that grows naturally in South America. From its leaves and thin stems different kinds of beverages are prepared (chimarrão, tererê and tea mate), all of them rich in bioactive substances. The aim of this study was to evaluate the influence of in vitro gastrointestinal digestion and colonic fermentation on the stability of the polyphenols and on the antioxidant, antimicrobial and antitumoral activities of the yerba mate beverages. The phenolic chromatographic profile revealed that both the in vitro digestion and the colonic fermentation caused a pronounced decrease in 3,5-O-dicaffeoylquinic acid and 5-O-caffeoylquinic acid in the preparations. However, 3-O-caffeoylquinic acid, 4-O-caffeoylquinic acid and salvianolic acid I were only barely affected in all preparations. Despite the decrease in the phytochemicals content, yerba mate beverages maintain their functional properties such as antioxidant, antibacterial and antitumoral activities.
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Affiliation(s)
- Vanesa G Correa
- Department of Biochemistry, State University of Maringá, Paraná, Brazil; Graduate Program in Food Science, State University of Maringá, Paraná, Brazil
| | - Geferson A Gonçalves
- Department of Biochemistry, State University of Maringá, Paraná, Brazil; Graduate Program in Food Science, State University of Maringá, Paraná, Brazil
| | - Anacharis B de Sá-Nakanishi
- Department of Biochemistry, State University of Maringá, Paraná, Brazil; Graduate Program in Food Science, State University of Maringá, Paraná, Brazil
| | - Isabel C F R Ferreira
- Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança (IPB), Campus de Santa Apolonia, Bragança, Portugal.
| | - Lillian Barros
- Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança (IPB), Campus de Santa Apolonia, Bragança, Portugal; Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Polytechnic Institute of Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Maria I Dias
- Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança (IPB), Campus de Santa Apolonia, Bragança, Portugal; Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Polytechnic Institute of Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Eloá A Koehnlein
- Department of Nutrition, Federal University of South Border, Realeza, Paraná, Brazil
| | | | - Adelar Bracht
- Department of Biochemistry, State University of Maringá, Paraná, Brazil; Graduate Program in Food Science, State University of Maringá, Paraná, Brazil
| | - Rosane M Peralta
- Department of Biochemistry, State University of Maringá, Paraná, Brazil; Graduate Program in Food Science, State University of Maringá, Paraná, Brazil.
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134
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18-Des-hydroxy Cytochalasin: an antiparasitic compound of Diaporthe phaseolorum-92C, an endophytic fungus isolated from Combretum lanceolatum Pohl ex Eichler. Parasitol Res 2017; 116:1823-1830. [PMID: 28497228 DOI: 10.1007/s00436-017-5451-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 04/20/2017] [Indexed: 10/19/2022]
Abstract
Chemical investigation of the ethyl acetate extract from the endophytic fungus Diaporthe phaseolorum-92C (92C) isolated from the roots of Combretum lanceolatum led to the isolation of 18-des-hydroxy Cytochalasin H (compound 1). The trypanocidal and schistosomicidal activity and cytotoxicity of the extract from 92C were evaluated. The schistosomicidal, leishmanicidal, antimicrobial, and antioxidant actions, as well as the antitumor activity against the breast cancer cells MDA-MB-231 and MCF-7, and the cytotoxicity towards normal human lung fibroblasts GM07492A of compound 1 was tested. The extract from 92C (20 μg/mL) exerted potent trypanocidal activity, reducing 82% of the number of amastigotes and trypomastigotes of Trypanosoma cruzi. Compound 1 at 50 μg/mL killed 50% of Schistosoma mansoni adult worms. Compound 1 reduced the viability of Leishmania amazonenses promastigotes (IC50 = 9.2 μg/mL) and of the cancer cells MDA-MB-231 and MCF-7 (IC50 = 17.5 and 8.88 μg/mL, respectively), presented moderate antioxidant activity, and gave IC50 of 2049.7 ± 39.9 μg/mL for the cytotoxicity towards normal cells GM07492A. This knowledge is highly relevant to the search for new promising compounds for therapeutic purposes.
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135
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Tseng TS, Tsai KC, Chen C. Characterizing the structure-function relationship reveals the mode of action of a novel antimicrobial peptide, P1, from jumper ant Myrmecia pilosula. MOLECULAR BIOSYSTEMS 2017; 13:1193-1201. [PMID: 28470277 DOI: 10.1039/c6mb00810k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Microbial infections of antibiotic-resistant strains cause serious diseases and have a significant impact on public health worldwide, so novel antimicrobial drugs are urgently needed. Insect venoms, a rich source of bioactive components containing antimicrobial peptides (AMPs), are attractive candidates for new therapeutic agents against microbes. Recently, a novel peptide, P1, identified from the venom of the Australian jumper ant Myrmecia pilosula, showed potent antimicrobial activities against both Gram-negative and Gram-positive bacteria, but its structure-function relationship is unknown. Here, we used biochemical and biophysical techniques coupled with computational simulations to explore the mode of action of P1 interaction with dodecylphosphocholine (DPC) micelles as a model membrane system. Our circular dichroism (CD) and NMR studies revealed an amphipathic α-helical structure for P1 upon interaction with DPC micelles. A paramagnetic relaxation enhancement approach revealed that P1 orients its α-helix segment (F6-G14) into DPC micelles. In addition, the α-helix segment could be essential for membrane permeabilization and antimicrobial activity. Moreover, the arginine residues R8, R11, and R15 significantly contribute to helix formation and membrane-binding affinity. The lysine residue K19 of the C-terminus functionally guides P1 to interact with DPC micelles in the early interaction stage. Our study provides insights into the mode of action of P1, which is valuable in modifying and developing potent AMPs as antibiotic drugs.
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Affiliation(s)
- Tien-Sheng Tseng
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan.
| | - Keng-Chang Tsai
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan and The Ph.D. Program for Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chinpan Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan.
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136
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de Vries J, de Vries S, Slamovits CH, Rose LE, Archibald JM. How Embryophytic is the Biosynthesis of Phenylpropanoids and their Derivatives in Streptophyte Algae? PLANT & CELL PHYSIOLOGY 2017; 58:934-945. [PMID: 28340089 DOI: 10.1093/pcp/pcx037] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 03/08/2017] [Indexed: 05/21/2023]
Abstract
The origin of land plants from algae is a long-standing question in evolutionary biology. It is becoming increasingly clear that many characters that were once assumed to be 'embryophyte specific' can in fact be found in their closest algal relatives, the streptophyte algae. One such case is the phenylpropanoid pathway. While biochemical data indicate that streptophyte algae harbor lignin-like components, the phenylpropanoid core pathway, which serves as the backbone of lignin biosynthesis, has been proposed to have arisen at the base of the land plants. Here we revisit this hypothesis using a wealth of new sequence data from streptophyte algae. Tracing the biochemical pathway towards lignin biogenesis, we show that most of the genes required for phenylpropanoid synthesis and the precursors for lignin production were already present in streptophyte algae. Nevertheless, phylogenetic analyses and protein structure predictions of one of the key enzyme classes in lignin production, cinnamyl alcohol dehydrogenase (CAD), suggest that CADs of streptophyte algae are more similar to sinapyl alcohol dehydrogenases (SADs). This suggests that the end-products of the pathway leading to lignin biosynthesis in streptophyte algae may facilitate the production of lignin-like compounds and defense molecules. We hypothesize that streptophyte algae already possessed the genetic toolkit from which the capacity to produce lignin later evolved in vascular plants.
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Affiliation(s)
- Jan de Vries
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Sophie de Vries
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
- Population Genetics, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Claudio H Slamovits
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
- Canadian Institute for Advanced Research, Program in Integrated Microbial Biodiversity, Toronto, ON, Canada
| | - Laura E Rose
- Population Genetics, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
- CEPLAS - Cluster of Excellence in Plant Sciences, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - John M Archibald
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
- Canadian Institute for Advanced Research, Program in Integrated Microbial Biodiversity, Toronto, ON, Canada
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137
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Bacalum M, Janosi L, Zorila F, Tepes AM, Ionescu C, Bogdan E, Hadade N, Craciun L, Grosu I, Turcu I, Radu M. Modulating short tryptophan- and arginine-rich peptides activity by substitution with histidine. Biochim Biophys Acta Gen Subj 2017; 1861:1844-1854. [PMID: 28372989 DOI: 10.1016/j.bbagen.2017.03.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 03/06/2017] [Accepted: 03/31/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND High antimicrobial efficacy of short tryptophan-and arginine-rich peptides makes them good candidates in the fight against pathogens. Substitution of tryptophan and arginine by histidine could be used to modulate the peptides efficacy by optimizing their structures. METHODS The peptide (RRWWRWWRR), reported to showed good antimicrobial efficacy, was used as template, seven new analogs being designed substituting tryptophan or arginine with histidine. The peptides' efficacy was tested against E. coli, B. subtilis and S. aureus. The cytotoxicity and hemolytic effect were evaluated and the therapeutic index was inferred for each peptide. Atomic force microscopy and molecular simulation were used to analyze the effects of peptides on bacterial membrane. RESULTS The substitution of tryptophan by histidine proved to strongly modulate the antimicrobial activity, mainly by changing the peptide-to-membrane binding energy. The substitution of arginine has low effect on the antimicrobial efficacy. The presence of histidine residue reduced the cytotoxic and hemolytic activity of the peptides in some cases maintaining the same efficacy against bacteria. The peptides' antimicrobial activity was correlated to the 3D-hydrophobic moment and to a simple structure-based packing parameter. CONCLUSION The results show that some of these peptides have the potential to become good candidates to fight against bacteria. The substitution by histidine proved to fine tune the therapeutic index allowing the optimization of the peptide structure mainly by changing its binding energy and 3D-hydrophobic moment. GENERAL SIGNIFICANCE The short tryptophan reach peptides therapeutic index can be maximized using the histidine substitution to optimize their structure.
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Affiliation(s)
- Mihaela Bacalum
- Department of Life and Environmental Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului 30, PO Box MG-6, Măgurele 077125, Romania
| | - Lorant Janosi
- Molecular and Biomolecular Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, 400293 Cluj-Napoca, Romania
| | - Florina Zorila
- Multipurpose Irradiation Facility Center, Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului 30, PO Box MG-6, Măgurele 077125, Romania
| | - Ana-Maria Tepes
- Babeş-Bolyai University, Supramolecular Organic and Organometallic Chemistry Center (SOOMCC), Cluj-Napoca, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania
| | - Cristina Ionescu
- Applied Nuclear Physics Department, Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului 30, PO Box MG-6, Măgurele 077125, Romania
| | - Elena Bogdan
- Babeş-Bolyai University, Supramolecular Organic and Organometallic Chemistry Center (SOOMCC), Cluj-Napoca, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania
| | - Niculina Hadade
- Babeş-Bolyai University, Supramolecular Organic and Organometallic Chemistry Center (SOOMCC), Cluj-Napoca, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania
| | - Liviu Craciun
- Applied Nuclear Physics Department, Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului 30, PO Box MG-6, Măgurele 077125, Romania
| | - Ion Grosu
- Babeş-Bolyai University, Supramolecular Organic and Organometallic Chemistry Center (SOOMCC), Cluj-Napoca, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania
| | - Ioan Turcu
- Molecular and Biomolecular Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, 400293 Cluj-Napoca, Romania.
| | - Mihai Radu
- Department of Life and Environmental Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului 30, PO Box MG-6, Măgurele 077125, Romania.
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138
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Fankam AG, Kuiate JR, Kuete V. Antibacterial and antibiotic resistance modulatory activities of leaves and bark extracts of Recinodindron heudelotii (Euphorbiaceae) against multidrug-resistant Gram-negative bacteria. Altern Ther Health Med 2017; 17:168. [PMID: 28340621 PMCID: PMC5366133 DOI: 10.1186/s12906-017-1687-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/15/2017] [Indexed: 11/17/2022]
Abstract
Background Recinodindron heudelotii (Euphorbiaceae) is a plant used in Africa, particularly in Cameroon to treat various ailments including bacterial infections. In this study, we evaluated the extracts of the leaves (RHL) and bark (RHB) of R. heudelotii for their antibacterial and antibiotic resistance modulating activities against 29 Gram-negative bacteria, including multidrug-resistant (MDR) phenotypes. Methods The broth micro-dilution assay was used to evaluate the antibacterial activity, and the antibiotic resistance modulating effects of the plant extracts. Results RHL displayed the most important spectrum of activity with minimal inhibitory concentrations (MICs) values ranging from 256 to 1024 μg/mL against 75.86% of the 29 tested bacteria strains while RHB was not active. RHL also showed killing effects with minimal bactericidal concentrations (MBCs) ranging from 256 to 1024 μg/mL. The activities of tetracycline and kanamycin associated with RHL were improved on 88.89% and 77.78% of the tested MDR bacteria, at MIC/2 at MIC/4 respectively, with 2 to 16-folds decreasing of MIC. This suggests the antibiotic resistance modulating effects of these antibiotics. Conclusion The present study provides data indicating a possible use of the leaves extract of Recinodindron heudelotii alone or in association with common antibiotics in the fight against bacterial infections including those involving MDR bacteria.
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139
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Barhouchi B, Aouadi S, Abdi A. Preparations based on minerals extracts of Calicotome villosa roots and bovine butyrate matter: Evaluation in vitro of their antifungal activity. J Mycol Med 2017; 27:210-219. [PMID: 28286025 DOI: 10.1016/j.mycmed.2017.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 10/04/2016] [Accepted: 02/06/2017] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The use of preparations based on minerals extracts of Calicotome villosa and butter is born from the misuse of drugs without specific microbiological analyzes. Seventeen different preparations were performed. The antibacterial and antifungal activities were determined on five bacteria and two fungi strains respectively. MATERIAL AND METHODS C. villosa ashes are obtained by incineration of roots plant at 498°C for 4hours. They are analyzed to determine the shape of the particles and the mineral constituents by scanning electronic microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) techniques respectively. The effectiveness of preparations or tablets is measured in solid medium. It allows to measure the diameter of the inhibition zone for the antibacterial activity as well as the diameter of mycelia growth and the critical values (MIC, MFC, IC50 and IC90) for the antifungal activity. Finally, the results are compared to the activity of a commercial positive control aiming to give value of the observed activity. RESULTS SEM observations reveal the presence of nanoparticles agglomerated with size of about 50nm. The EDX analyzes indicate the presence of Fe, Na, Al, Mg, Si, K, Ca, O2 and C. Among all the results, the preparation (Bs+A) or (Bsd+A) can completely inhibit the growth of two fungal pathogens. The activity of the preparation is faced with the activity of the synthetic fungicide nystatin. CONCLUSION The efficacy of the preparation (Bs+A) or (Bsd+A) is higher than that of nystatin against Aspergillus sp. and Fusarium sp. The preparation could serve as natural antifungal for the pharmaceutical industry.
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Affiliation(s)
- B Barhouchi
- Laboratory of Applied Biochemistry and Microbiology, Department of Biochemistry, Faculty of Sciences, Badji Mokhtar - Annaba University, P.O. Box 12, 23000 Annaba, Algeria.
| | - S Aouadi
- Laboratory of Applied Biochemistry and Microbiology, Department of Biochemistry, Faculty of Sciences, Badji Mokhtar - Annaba University, P.O. Box 12, 23000 Annaba, Algeria
| | - A Abdi
- Laboratory of Applied Biochemistry and Microbiology, Department of Biochemistry, Faculty of Sciences, Badji Mokhtar - Annaba University, P.O. Box 12, 23000 Annaba, Algeria
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140
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DİNÇSOY AB, CANSARAN DUMAN D. Changes in apoptosis-related gene expression profiles in cancer cell lines exposed to usnic acid lichen secondary metabolite. Turk J Biol 2017. [DOI: 10.3906/biy-1609-40] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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141
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Tan SWB, Chai CLL, Moloney MG. Mimics of pramanicin derived from pyroglutamic acid and their antibacterial activity. Org Biomol Chem 2017; 15:1889-1912. [DOI: 10.1039/c6ob02828d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Mono and dihydroxypyrrolidinones are readily available by direct oxygenation of a pyroglutamate-derived bicyclic lactam with high diastereoselectivity, and these may be manipulated further in protected or unprotected form by Grignard addition to a pendant Weinreb amide to give acylhydroxypyrrolidinones.
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Affiliation(s)
- Song Wei Benjamin Tan
- Department of Chemistry
- Chemistry Research Laboratory
- The University of Oxford
- Oxford
- UK
| | - Christina L. L. Chai
- Institute of Chemical and Engineering Sciences (ICES)
- Singapore 138665
- Singapore
- Department of Pharmacy
- National University of Singapore
| | - Mark G. Moloney
- Department of Chemistry
- Chemistry Research Laboratory
- The University of Oxford
- Oxford
- UK
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142
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Kwon Y, Cha J, Chiang J, Tran G, Giaever G, Nislow C, Hur JS, Kwak YS. A chemogenomic approach to understand the antifungal action of Lichen-derived vulpinic acid. J Appl Microbiol 2016; 121:1580-1591. [DOI: 10.1111/jam.13300] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 07/15/2016] [Accepted: 09/11/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Y. Kwon
- Division of Applied Life Science; Gyeongsang National University; Jinju Korea
| | - J. Cha
- Department of Plant Medicine and Institute of Agriculture & Life Science; Gyeongsang National University; Jinju Korea
| | - J. Chiang
- Pharmaceutical Sciences; University of British Columbia; Vancouver BC Canada
| | - G. Tran
- Pharmaceutical Sciences; University of British Columbia; Vancouver BC Canada
| | - G. Giaever
- Pharmaceutical Sciences; University of British Columbia; Vancouver BC Canada
| | - C. Nislow
- Pharmaceutical Sciences; University of British Columbia; Vancouver BC Canada
| | - J.-S. Hur
- Korean Lichen Research Institute; Suncheon National University; Suncheon Korea
| | - Y.-S. Kwak
- Department of Plant Medicine and Institute of Agriculture & Life Science; Gyeongsang National University; Jinju Korea
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143
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Ortiz de Elguea-Culebras G, Sánchez-Vioque R, Santana-Méridas O, Herraiz-Peñalver D, Carmona M, Berruga MI. In vitro antifungal activity of residues from essential oil industry against Penicillium verrucosum, a common contaminant of ripening cheeses. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.06.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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144
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Morsy N, Al Sherif EA, Abdel-rassol TM. Phytochemical analysis of Calotropis procera with antimicrobial activity investigation. MAIN GROUP CHEMISTRY 2016. [DOI: 10.3233/mgc-160206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nagy Morsy
- Department of Chemistry, Faculty of Sciences and Arts, Khulais, King Abdulaziz University, Kingdom of Saudi Arabia
- Department of Chemistry, Faculty of Sciences and Arts, Khulais, University of Jeddah, Kingdom of Saudi Arabia
- Department of Chemistry of Natural Compounds, National Research Centre, Dokki, Cairo, Egypt
| | - Emad A. Al Sherif
- Department of Biology, Faculty of Sciences and Arts, Khulais, King Abdulaziz University, Kingdom of Saudi Arabia
- Department of Biology, Faculty of Sciences and Arts, Khulais, University of Jeddah, Kingdom of Saudi Arabia
- Department of Botany, Faculty of Science, BeniSuef University, BeniSuef, Egypt
| | - Tayseer M.A. Abdel-rassol
- Department of Biology, Faculty of Sciences and Arts, Khulais, King Abdulaziz University, Kingdom of Saudi Arabia
- Department of Botany & Microbiology, Faculty of Science, Suez Canal University, Egypt
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145
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Snow Setzer M, Sharifi-Rad J, Setzer WN. The Search for Herbal Antibiotics: An In-Silico Investigation of Antibacterial Phytochemicals. Antibiotics (Basel) 2016; 5:E30. [PMID: 27626453 PMCID: PMC5039526 DOI: 10.3390/antibiotics5030030] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/14/2016] [Accepted: 08/26/2016] [Indexed: 01/12/2023] Open
Abstract
Recently, the emergence and spread of pathogenic bacterial resistance to many antibiotics (multidrug-resistant strains) have been increasing throughout the world. This phenomenon is of great concern and there is a need to find alternative chemotherapeutic agents to combat these antibiotic-resistant microorganisms. Higher plants may serve as a resource for new antimicrobials to replace or augment current therapeutic options. In this work, we have carried out a molecular docking study of a total of 561 antibacterial phytochemicals listed in the Dictionary of Natural Products, including 77 alkaloids (17 indole alkaloids, 27 isoquinoline alkaloids, 4 steroidal alkaloids, and 28 miscellaneous alkaloids), 99 terpenoids (5 monoterpenoids, 31 sesquiterpenoids, 52 diterpenoids, and 11 triterpenoids), 309 polyphenolics (87 flavonoids, 25 chalcones, 41 isoflavonoids, 5 neoflavonoids, 12 pterocarpans, 10 chromones, 7 condensed tannins, 11 coumarins, 30 stilbenoids, 2 lignans, 5 phenylpropanoids, 13 xanthones, 5 hydrolyzable tannins, and 56 miscellaneous phenolics), 30 quinones, and 46 miscellaneous phytochemicals, with six bacterial protein targets (peptide deformylase, DNA gyrase/topoisomerase IV, UDP-galactose mutase, protein tyrosine phosphatase, cytochrome P450 CYP121, and NAD⁺-dependent DNA ligase). In addition, 35 known inhibitors were docked with their respective targets for comparison purposes. Prenylated polyphenolics showed the best docking profiles, while terpenoids had the poorest. The most susceptible protein targets were peptide deformylases and NAD⁺-dependent DNA ligases.
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Affiliation(s)
- Mary Snow Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
| | - Javad Sharifi-Rad
- Zabol Medicinal Plants Research Center, Zabol University of Medical Sciences, Zabol 61615-585, Iran.
- Department of Pharmacognosy, Zabol University of Medical Sciences, Zabol 61615-585, Iran.
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
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146
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Moloney MG. Natural Products as a Source for Novel Antibiotics. Trends Pharmacol Sci 2016; 37:689-701. [DOI: 10.1016/j.tips.2016.05.001] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/02/2016] [Accepted: 05/02/2016] [Indexed: 01/04/2023]
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147
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Tang Q, Liu J, Shrestha LK, Ariga K, Ji Q. Antibacterial Effect of Silver-Incorporated Flake-Shell Nanoparticles under Dual-Modality. ACS APPLIED MATERIALS & INTERFACES 2016; 8:18922-18929. [PMID: 27387017 DOI: 10.1021/acsami.6b02507] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Silver has been recognized as a broad-spectrum antimicrobial agent and extensively used in biomedical applications. Through a sequential one-pot synthesis strategy, we have successfully incorporated silver into flake-shell nanoparticles. Due to the simultaneous growth of networked nanostructures of silica and in situ reduction of silver ions, homogeneously distributed silver into the shell of the nanocapsule was formed. The antibacterial test indicated that the silver-incorporated silica nanocapsule exhibits effective antibacterial activity, inhibiting the bacterial growth by 75%. In addition, with the encapsulation of other antibiotic agent into the structure, an enhanced antibacterial effect under dual-modality could also be achieved.
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Affiliation(s)
- Qin Tang
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science & Technology , 200 Xiaolingwei, Nanjing 210094, China
| | - Jia Liu
- Supermolecules Group, WPI Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Lok Kumar Shrestha
- Supermolecules Group, WPI Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Katsuhiko Ariga
- Supermolecules Group, WPI Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Qingmin Ji
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science & Technology , 200 Xiaolingwei, Nanjing 210094, China
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148
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Kerwat D, Grätz S, Kretz J, Seidel M, Kunert M, Weston JB, Süssmuth RD. Synthesis of Albicidin Derivatives: Assessing the Role of N-terminal Acylation on the Antibacterial Activity. ChemMedChem 2016; 11:1899-903. [DOI: 10.1002/cmdc.201600231] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 06/24/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Dennis Kerwat
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
| | - Stefan Grätz
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
| | - Julian Kretz
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
| | - Maria Seidel
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
| | - Maria Kunert
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
| | - John B. Weston
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
| | - Roderich D. Süssmuth
- Institut für Organische Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Germany
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149
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Leandro LF, Moraes TDS, de Oliveira PF, Alves JM, Senedese JM, Ozelin SD, Resende FA, De Grandis RA, Varanda EA, Bastos JK, Tavares DC, Martins CHG. Assessment of the antibacterial, cytotoxic and mutagenic potential of the phenolic-rich hydroalcoholic extract from Copaifera trapezifolia Hayne leaves. J Med Microbiol 2016; 65:937-950. [PMID: 27452156 DOI: 10.1099/jmm.0.000316] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Copaifera trapezifolia Hayne occurs in the Atlantic Rainforest, which is considered one of the most important and endangered tropical forests on the planet. Although literature works have described many Copaifera spp., their biological activities remain little known. In the present study, we aimed to evaluate (1) the potential of the hydroalcoholic extract from C. trapezifolia leaves (CTE) to act against the causative agents of tooth decay and apical periodontitis and (2) the cytotoxicity and mutagenicity of CTE to ensure that it is safe for subsequent application. Concerning the tested bacteria, the MIC and the minimum bactericidal concentration of CTE varied between 100 and 400 µg ml-1. The time-kill assay conducted at a CTE concentration of 100 µg ml-1 evidenced bactericidal activity against Porphyromonas gingivalis (ATCC 33277) and Peptostreptococcus micros (clinical isolate) within 72 h. CTE at 200 µg ml-1 inhibited Porphyromonas gingivalis and Peptostreptococcus micros biofilm formation by at least 50 %. A combination of CTE with chlorhexidine dichlorohydrate did not prompt any synergistic effects. The colony-forming assay conducted on V79 cells showed that CTE was cytotoxic at concentrations above 156 µg ml-1. CTE exerted mutagenic effect on V79 cells, but the micronucleus test conducted on Swiss mice and the Ames test did not reveal any mutagenicity. Therefore, the use of standardized and safe extracts could be an important strategy to develop novel oral care products with antibacterial action. These extracts could also serve as a source of compounds for the discovery of new promising biomolecules.
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Affiliation(s)
- Luís Fernando Leandro
- Laboratory of Research in Applied Microbiology, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | - Thaís da Silva Moraes
- Laboratory of Research in Applied Microbiology, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | | | - Jacqueline Morais Alves
- Laboratory of Mutagenesis, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | | | - Saulo Duarte Ozelin
- Laboratory of Mutagenesis, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | - Flávia Aparecida Resende
- School of Pharmaceutical Sciences, State University of São Paulo, Araraquara, 14801-902 São Paulo, Brazil
| | - Rone Aparecido De Grandis
- School of Pharmaceutical Sciences, State University of São Paulo, Araraquara, 14801-902 São Paulo, Brazil
| | - Eliana Aparecida Varanda
- School of Pharmaceutical Sciences, State University of São Paulo, Araraquara, 14801-902 São Paulo, Brazil
| | - Jairo Kenupp Bastos
- School of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, 14040-903 São Paulo, Brazil
| | - Denise Crispim Tavares
- Laboratory of Mutagenesis, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
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150
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ul Ain N, Safdar N, Yasmin A. Antimicrobial Investigations from Crude and Peptide Extracts of Glycine max Linn. Merr Varieties. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2016. [DOI: 10.1007/s13369-016-2248-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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