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Ökmen G, Giannetto D, Fazio F, Arslan K. Investigation of Pomegranate ( Punica granatum L.) Flowers' Antioxidant Properties and Antibacterial Activities against Different Staphylococcus Species Associated with Bovine Mastitis. Vet Sci 2023; 10:394. [PMID: 37368780 DOI: 10.3390/vetsci10060394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
Mastitis is one of the most considerable and costly diseases for dairy herds, and Staphylococcus spp. is known to be the main causative agent. Although antibiotics are widely used in the treatment of mastitis, this can cause both antibiotic residues in milk and the risk of antibiotic resistance occurrence in bacteria. Thus, in recent years, researchers have focused on alternative treatments for this disease and plants extracts are investigated for this purpose. Pomegranate is widely used as a dye, ornament, and medicinal plants in the industry, and the species has a particularly high economic value in Turkey. This study aims to investigate in vitro the antioxidant and antibacterial properties of the pomegranate flower's extracts against different Staphylococcus species associated with bovine mastitis. To this aim, pomegranate flowers were collected from different regions in Turkey and extracts were prepared with three different solvents (methanol, ethanol, and water). The retention factor values of the ethanol extract were determined by thin-layer chromatography. The antibacterial activity tests were carried out via the disk diffusion method. In addition, the extracts were tested against the stable DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free radicals for antioxidant activity. Four retention factors (0.79, 0.67, 0.58, and 0.33 points) were found for the ethanol extract. The methanol extract showed the highest inhibition zones against coagulase-negative Staphylococcus-37 (CNS-37) and S. aureus-18. The lowest MIC was 6500 μg/mL. The highest antioxidant activity was observed in methanol extracts. As a result, the extracts of pomegranate flowers showed a high antioxidant and antibacterial potential against the examined mastitis pathogens.
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Affiliation(s)
- Gülten Ökmen
- Department of Biology, Faculty of Science, Mugla Sıtkı Kocman University, Mugla 48000, Turkey
| | - Daniela Giannetto
- Department of Biology, Faculty of Science, Mugla Sıtkı Kocman University, Mugla 48000, Turkey
| | - Francesco Fazio
- Department of Veterinary Sciences, Messina University, 98166 Messina, Italy
| | - Kutbettin Arslan
- Department of Biology, Faculty of Science, Mugla Sıtkı Kocman University, Mugla 48000, Turkey
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Wrona M, Pezo D, Rovito MA, Vera P, Nerín C, Asensio E. Application of Untargeted Metabolomics to Determine Volatile Compounds from the Spanish Plant Arctostaphylos uva-ursi Used as Tea. SEPARATIONS 2022; 9:68. [DOI: 10.3390/separations9030068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
One-hundred and seven different volatile compounds were identified in the samples of Arctostaphylos uva-ursi collected from nine locations in Spain. This plant is commonly brewed and used as tea. Volatile compounds profile was detected using solid-phase microextraction gas chromatography-mass spectrometry. The most interesting compounds detected from an antioxidant capacity point of view were esters, phenols, and aromatics compounds. All samples were discriminated by principal component analysis. The insolation and altitude of harvest areas, and latent structures were considered for interpretation of results. Discriminant analysis was applied to control the type and concentration of metabolites and determine the best plant antioxidant profiles of volatile compounds from plant origin. Moreover, a heatmap displayed correlations between detected compounds. The discriminant analysis led to 20 quality markers being identified for the analysed plants. The strongest antioxidant capacity was obtained in the samples from Pina de Montalgrao and Loarre (collected in September) for ORAC (33.11 ± 0.61 g Trolox/g sample) and DPPH (IC50 = 711 ± 12 µg/g) methods, respectively. The plant with the highest total phenolic content was Loarre collected in September (171.9 ± 19.4 mg GAE/g DW) and November (177.1 ± 11.0 mg GAE/g DW).
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Whangchai K, Shanmugam S, Van Le Q, Chau TP, Al-Kheraif AA, Brindhadevi K, Duc PA. Study of antimicrobial activity of Thespesia populnea-coated nanozirconium on cotton gauze fabrics. Appl Nanosci 2021. [DOI: 10.1007/s13204-021-01867-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Behboodi-Sadabad F, Li S, Lei W, Liu Y, Sommer T, Friederich P, Sobek C, Messersmith PB, Levkin PA. High-throughput screening of multifunctional nanocoatings based on combinations of polyphenols and catecholamines. Mater Today Bio 2021; 10:100108. [PMID: 33912825 PMCID: PMC8063910 DOI: 10.1016/j.mtbio.2021.100108] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/22/2021] [Accepted: 02/27/2021] [Indexed: 10/31/2022] Open
Abstract
Biomimetic surface coatings based on plant polyphenols and catecholamines have been used broadly in a variety of applications. However, the lack of a rational cost-effective platform for screening these coatings and their properties limits the true potential of these functional materials to be unleashed. Here, we investigated the oxidation behavior and coating formation ability of a library consisting of 45 phenolic compounds and catecholamines. UV-vis spectroscopy demonstrated significant acceleration of oxidation and polymerization under UV irradiation. We discovered that several binary mixtures resulted in non-additive behavior (synergistic or antagonistic effect) yielding much thicker or thinner coatings than individual compounds measured by ellipsometry. To investigate the properties of coatings derived from new combinations, we used a miniaturized high-throughput strategy to screen 2,532 spots coated with single, binary, and ternary combinations of coating precursors in one run. We evaluated the use of machine learning models to learn the relation between the chemical structure of the precursors and the thickness of the nanocoatings. Formation and stability of nanocoatings were investigated in a high-throughput manner via discontinuous dewetting. 30 stable combinations (hits) were used to tune the surface wettability and to form water droplet microarray and spot size gradients of water droplets on the coated surface. No toxicity was observed against eukaryotic HeLa cells and Pseudomonas aeruginosa (strain PA30) bacteria after 24 h incubation at 37 °C. The strategy introduced here for high-throughput screening of nanocoatings derived from combinations of coating precursors enables the discovery of new functional materials for various applications in science and technology in a cost-effective miniaturized manner.
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Affiliation(s)
- F Behboodi-Sadabad
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, 76344, Germany
| | - S Li
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, 76344, Germany
| | - W Lei
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, 76344, Germany
| | - Y Liu
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, 76344, Germany
| | - T Sommer
- Institute of Theoretical Informatics, Karlsruhe Institute of Technology (KIT), Am Fasanengarten 5, Karlsruhe, 76131, Germany
| | - P Friederich
- Institute of Theoretical Informatics, Karlsruhe Institute of Technology (KIT), Am Fasanengarten 5, Karlsruhe, 76131, Germany.,Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany
| | - C Sobek
- Departments of Bioengineering and Materials Science and Engineering, University of California Berkeley, CA, 94720-1760, USA
| | - P B Messersmith
- Departments of Bioengineering and Materials Science and Engineering, University of California Berkeley, CA, 94720-1760, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - P A Levkin
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, 76344, Germany
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Dall'Acqua S, Grabnar I, Verardo R, Klaric E, Marchionni L, Luidy-Imada E, Sut S, Agostinis C, Bulla R, Perissutti B, Voinovich D. Combined extracts of Echinacea angustifolia DC. and Zingiber officinale Roscoe in softgel capsules: Pharmacokinetics and immunomodulatory effects assessed by gene expression profiling. Phytomedicine 2019; 65:153090. [PMID: 31557666 DOI: 10.1016/j.phymed.2019.153090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 09/10/2019] [Accepted: 09/15/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Echinacea angustifolia DC. and Zingiber officinale Roscoe are two natural products with documented immunomodulatory activity, both able to modulate the expression of important immune-related genes. Thus, their use in combination seems to be particularly promising. In this context, we have considered the oral supplementation of a highly standardized lipophilic extract combining both above-mentioned phytocomplexes, formulated in attractive softgel capsules, with two objectives: on the one hand to study oral pharmacokinetic of main active extracts' components and on the other hand to examine the immunomodulation and anti-inflammatory properties by gene expression profiling. METHODS Softgel capsules containing a combination of E. angustifolia DC. and Z. officinale Roscoe (5 mg and 25 mg, respectively) were given by oral administration to 10 healthy volunteers. The plasma concentrations of dodeca-2E,4E,8Z,10E/Z-tetraenoic isobutylamide (tetraene) for E. angustifolia DC., 6-gingerol and 6-shogaol (free and glucuronide) for Z. officinale Roscoe were determined by LC-MS analysis, and the pharmacokinetic analysis was performed. To understand the functional mechanisms responsible for the documented health benefits, we also examined the overall transcriptional remodeling induced in the peripheral blood mononuclear cells and performed an integrative functional analysis on the generated gene expression. RESULTS All bioactive components were absorbed very rapidly, and their tmax were detected in plasma from 30 min to 1.40 h. The peak concentrations of tetraene, 6-gingerol, 6-shogaol and their glucuronide metabolites were 14.74, 5.66, 9.25, 29.2 and 22.24 ng/ml, respectively. Integrated analysis performed on the generated gene expression data highlighted immunomodulatory and anti-inflammatory effects similar to those exerted by hydrocortisone. CONCLUSION These data demonstrated that the bioactive ingredients are highly and rapidly absorbed from softgel capsules containing the combination of the above-mentioned lipophilic extracts, providing evidence to support their immunomodulatory and anti-inflammatory properties. These data also help in defining the mechanistic pathways underlying the health benefits of these plant-derived bioactive compounds.
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Affiliation(s)
- Stefano Dall'Acqua
- Department of Pharmaceutical Sciences, University of Padova, Via F. Marzolo 5, 35131, Padova, Italy
| | - Iztok Grabnar
- Faculty of Pharmacy, University of Ljubljana, Askerceva 7, SI-1000 Ljubljana, Slovenia
| | - Roberto Verardo
- National Laboratory of the Interuniversity Consortium for Biotechnology, Area Science Park - Padriciano 99, 34149, Trieste, Italy
| | - Enio Klaric
- National Laboratory of the Interuniversity Consortium for Biotechnology, Area Science Park - Padriciano 99, 34149, Trieste, Italy
| | - Luigi Marchionni
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Eddie Luidy-Imada
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Biochemistry and Immunology, ICB, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Stefania Sut
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, Viale dell'Università 16 - 35020 Legnaro, Pd, Italy
| | - Chiara Agostinis
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, via dell'Istria 65/1, 34143, Trieste, Italy
| | - Roberta Bulla
- Department of Life Sciences, University of Trieste, via Valerio, 28, 34127, Trieste, Italy
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
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Samoilova ZY, Smirnova GV, Oktyabrsky ON. Modulation of Streptomycin Killing Rate against Mature Escherichia Coli Biofilms in the Presence of Medicinal Plant Extracts. Acta biomedica scientifica 2019; 4:50-54. [DOI: 10.29413/abs.2019-4.5.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background. Medicinal plant extracts exhibiting pro- and antioxidant properties may affect antibiotic-induced killing of biofilm-producing bacteria in both synergistic and antagonistic modes. Better understanding of these alternations is required to adjust antibiotic therapy and herbal medicine in order to exclude unwanted losses of antibiotic efficiency.Aim: to study modulation modes of streptomycin killing rate against mature biofilms of Escherichia coli in the presence of different doses of commonly used medicinal plant extracts.Materials and methods. Pharmacodynamic parameter killing rate and mass biofilm formation were determined in the presence of streptomycin and medicinal plant extracts.Results. Synergism was found between 100 mg/ml streptomycin and low doses (0.83 mg of dry herb/ml) of green, black tea, Arctostaphylos uva-ursi, Betula pendula and Laminaria japonica against killing mature biofilms. Alternatively, high doses (6.64 mg of dry herb/ml) of green, black tea and Vaccinium vitis-ideae demonstrated antagonism, decreasing killing rate and enhancing biofilm formation. Presumably, high doses of the extracts were sufficient to enhance biofilm formation blocking penetration of streptomycin through enlarged biofilm matrix and diminishing the killing rate.Conclusions. Widely consumed as soft beverages or for prophylactic purposes green, black tea and V. vitis-ideae could promote strong antagonistic effects with streptomycin. These extracts can stimulate biofilm production, making benefit for commensal microbiota, but have clinical relevance due to a significant reduction in the lethal efficiency of streptomycin in biofilms of pathogenic strains. This highlights the need of careful antibiotic prescription scheme adjustment when choosing appropriate combinations of plant extracts and antibiotics to achieve a synergistic effect.
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Khan SU, Anjum SI, Ansari MJ, Khan MHU, Kamal S, Rahman K, Shoaib M, Man S, Khan AJ, Khan SU, Khan D. Antimicrobial potentials of medicinal plant's extract and their derived silver nanoparticles: A focus on honey bee pathogen. Saudi J Biol Sci 2019; 26:1815-1834. [PMID: 31762664 PMCID: PMC6864162 DOI: 10.1016/j.sjbs.2018.02.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/12/2018] [Accepted: 02/15/2018] [Indexed: 12/23/2022] Open
Abstract
Infectious (or Communicable) diseases are not only the past but also the present problem in developing as well as developed countries. It is caused by various pathogenic microbes like fungi, bacteria, parasites and virus etc. The medicinal plants and nano-silver have been used against the pathogenic microbes. Herbal medicines are generally used for healthcare because they have low price and wealthy source of antimicrobial properties. Like medicinal plants, silver nanoparticles also have emergent applications in biomedical fields due to their immanent therapeutic performance. Here, we also explore the various plant parts such as bark, stem, leaf, fruit and seed against Gram negative and Gram-positive bacteria, using different solvents for extraction i.e. methanol, ethyl acetate, chloroform, acetone, n. hexane, butanol, petroleum ether and benzene. Since ancient to date most of the countries have been used herbal medicines, but in Asia, some medicinal plants are commonly used in rural and backward areas as a treatment for infectious diseases. In this review, we provide simple information about medicinal plants and Silver nanoparticles with their potentialities such as antiviral, bactericidal and fungicidal. Additionally, the present review to highlights the versatile applications of medicinal plants against honey bee pathogen such as fungi (Ascosphaera apis), mites (Varroa spp. and Tropilaelaps sp.), bacteria (Melissococcus plutonius Paenibacillus larvae), and microsporidia (Nosema apis and Nosema ceranae). In conclusion, promising nonchemical (plant extracts) are innocuous to adult bees. So, we strongly believed that this effort was made to evaluate the status of medicinal plants researches globally.
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Affiliation(s)
- Shahid Ullah Khan
- College of Plant Sciences and Technology, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Syed Ishtiaq Anjum
- Department of Zoology, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Muhammad Javed Ansari
- Bee Research Chair, Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
- Department of Botany, Hindu College Moradabad, M.J.P Rohilkhand University, 244001, India
| | - Muhammad Hafeez Ullah Khan
- College of Plant Sciences and Technology, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Sajid Kamal
- School of Biotechnology, Jiangnan University, Wuxi 214122, PR China
| | - Khaista Rahman
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Shoaib
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Shad Man
- School of Life Sciences, Inner Mongolia University Hohhot, Inner Mongolia 010021, PR China
| | - Abdul Jamil Khan
- School of Life Sciences, Inner Mongolia University Hohhot, Inner Mongolia 010021, PR China
| | - Salim Ullah Khan
- Institute of Chemical Sciences, Gomal University Dera Ismail Khan, KPK, Pakistan
| | - Dilfaraz Khan
- Institute of Chemical Sciences, Gomal University Dera Ismail Khan, KPK, Pakistan
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Wrona M, Blasco S, Becerril R, Nerin C, Sales E, Asensio E. Antioxidant and antimicrobial markers by UPLC ®-ESI-Q-TOF-MS E of a new multilayer active packaging based on Arctostaphylos uva-ursi. Talanta 2019; 196:498-509. [PMID: 30683397 DOI: 10.1016/j.talanta.2018.12.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/19/2018] [Accepted: 12/20/2018] [Indexed: 11/23/2022]
Abstract
49 different non-volatile compounds were determined in Spanish Arctostaphylos uva-ursi leaves using UPLC®-ESI-Q-TOF with MSE technology. Both positive and negative electrospray ionization were applied. MarkerLynx® was proposed as a powerful tool to distinguish samples from eight wild populations of Spain by determining their non-volatile markers. Development of HRMS methods let to analysis of metabolites in plants. Antioxidant and antimicrobial capacities of different extracts were evaluated. Plant extract with the strongest antioxidant and simultaneous good antimicrobial capacity (Lierta) was chosen and incorporated in a multilayer packaging. Then, antioxidant capacity of the new packaging was evaluated and the efficient free radical scavenging properties were demonstrated.
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Patel P, Joshi C, Palep H, Kothari V. Anti-infective potential of a quorum modulatory polyherbal extract (panchvalkal) against certain pathogenic bacteria. J Ayurveda Integr Med 2020; 11:336-43. [PMID: 33012317 DOI: 10.1016/j.jaim.2017.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/05/2017] [Accepted: 10/22/2017] [Indexed: 11/20/2022] Open
Abstract
Background In view of the gravity of the problem of antimicrobial resistance among pathogenic bacteria against conventional bactericidal agents, investigation on alternative approaches to combat bacterial infections is warranted. Objective Current study aimed at investigating anti-infective potential of a polyherbal ayurvedic formulation namely panchvalkal against three different pathogenic bacteria. Materials and methods The panchvalkal formulation available as Pentaphyte P5® was tested for its possible in vitro quorum-modulatory potential against Chromobacterium violaceum, Serratia marcescens, and Staphylococcus aureus through broth dilution assay. Invivo efficacy was demonstrated employing Caenorhabditis elegans as the model host for test pathogens. Results This formulation was found to exert quorum-modulatory effect on C. violaceum, S. marcescens, and S. aureus at 250–750 μg/ml. Besides altering production of the quorum sensing-regulated pigments in these bacteria, the test formulation also had in vitro effect on antibiotic susceptibility, catalase activity and haemolytic potential of the pathogens. Invivo assay confirmed the protective effect of this panchvalkal formulation on C. elegans, when challenged with the pathogenic bacteria. Repeated exposure of S. aureus to panchvalkal did not induce resistance in this bacterium. Conclusion To the best of our awareness, this the first report on quorum-modulatory potential of panchvalkal formulation, validating the anti-infective potential and moderate prebiotic property of this polyherbal preparation.
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Greenberg M, Kuo D, Jankowsky E, Long L, Hager C, Bandi K, Ma D, Manoharan D, Shoham Y, Harte W, Ghannoum MA, Shoham M. Small-molecule AgrA inhibitors F12 and F19 act as antivirulence agents against Gram-positive pathogens. Sci Rep 2018; 8:14578. [PMID: 30275455 PMCID: PMC6167350 DOI: 10.1038/s41598-018-32829-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 09/17/2018] [Indexed: 01/20/2023] Open
Abstract
Small-molecule antivirulence agents represent a promising alternative or adjuvant to antibiotics. These compounds disarm pathogens of disease-causing toxins without killing them, thereby diminishing survival pressure to develop resistance. Here we show that the small-molecule antivirulence agents F12 and F19 block staphylococcal transcription factor AgrA from binding to its promoter. Consequently, toxin expression is inhibited, thus preventing host cell damage by Gram-positive pathogens. Broad spectrum efficacy against Gram-positive pathogens is due to the existence of AgrA homologs in many Gram-positive bacteria. F12 is more efficacious in vitro and F19 works better in vivo. In a murine MRSA bacteremia/sepsis model, F19 treatment alone resulted in 100% survival while untreated animals had 70% mortality. Furthermore, F19 enhances antibiotic efficacy in vivo. Notably, in a murine MRSA wound infection model, combination of F19 with antibiotics resulted in bacterial load reduction. Thus, F19 could be used alone or in combination with antibiotics to prevent and treat infections of Gram-positive pathogens.
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Affiliation(s)
- Michael Greenberg
- Department of Biochemistrty, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - David Kuo
- Department of Biochemistrty, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Eckhard Jankowsky
- Center for RNA and Therapeutics, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Lisa Long
- Department of Dermatology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Chris Hager
- Department of Dermatology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Kiran Bandi
- Department of Biochemistrty, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.,University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Danyang Ma
- Department of Biochemistrty, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Divya Manoharan
- Department of Biochemistrty, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | | | - William Harte
- Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Mahmoud A Ghannoum
- Department of Dermatology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Menachem Shoham
- Department of Biochemistrty, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA. .,Q2 Pharma, Ltd., Haifa, Israel.
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de O Ribeiro IC, Mariano EGA, Careli RT, Morais-Costa F, de Sant'Anna FM, Pinto MS, de Souza MR, Duarte ER. Plants of the Cerrado with antimicrobial effects against Staphylococcus spp. and Escherichia coli from cattle. BMC Vet Res 2018; 14:32. [PMID: 29382347 PMCID: PMC5791213 DOI: 10.1186/s12917-018-1351-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 01/16/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Both diarrhea in calves and mastitis in cows limit cattle production. The bacteria involved in these diseases have shown multi-resistance to antimicrobials, however plant metabolites therefore can provide an alternative method of control. This study selected and characterized Cerrado plant extracts showing inhibitory effects against Escherichia coli and Staphylococcus spp. from cattle. Thirteen leaf extracts were initially screened and diameters of inhibition zones produced against the pathogens were recorded using an agar disk diffusion method. Total condensed tannin contents were determined and antibacterial activities were analyzed after tannin removal from the five selected extracts. The minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) were evaluated by macro-dilution antimicrobial susceptibility tests, and the extracts were characterized by high performance liquid chromatography. RESULTS Inter- and intra-specific bacterial variations in the susceptibility to the extracts were detected. The aqueous extract (AE) from Caryocar brasiliense Cambess. leaves produced larger inhibition zones against E. coli strains than did other selected extracts. However, the AE from Schinopsis brasiliensis was the most effective against Staphylococcus spp. strains (P < 0.001). The MIC of ethanolic extracts (EE) from C. brasiliense (0.27 mg/mL) and S. brasiliensis (0.17 mg/mL) were lower than those of other extracts. The MIC and MBC of the Annona crassiflora EE were 6.24 mg/mL for all bacteria. Flavonoids were the main metabolites detected in the A. crassiflora EE as well as in the AE and EE from C. brasiliense, while tannins were the main metabolites in the S. brasiliensis leaf extracts. CONCLUSION The AE from C. brasiliense was more effective against Gram-negative bacteria, while the AE from S. brasiliensis was more effective against Gram-positive bacteria. A. crassiflora EE and S. brasiliensis extracts are potent bactericide. After removal of the tannins, no antimicrobial effects were observed, indicating that these metabolites are the main active antibacterial components.
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Affiliation(s)
- Izabella Carolina de O Ribeiro
- Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Avenida Universitária, 1000, Bairro Universitário, Montes Claros, Minas Gerais, CEP 39401-790, Brazil
| | - Emanuelly Gomes A Mariano
- Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Avenida Universitária, 1000, Bairro Universitário, Montes Claros, Minas Gerais, CEP 39401-790, Brazil
| | - Roberta T Careli
- Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Avenida Universitária, 1000, Bairro Universitário, Montes Claros, Minas Gerais, CEP 39401-790, Brazil
| | - Franciellen Morais-Costa
- Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Avenida Universitária, 1000, Bairro Universitário, Montes Claros, Minas Gerais, CEP 39401-790, Brazil
| | - Felipe M de Sant'Anna
- Escola de Medicina Veterinária, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627 Pampulha, Belo Horizonte, MG, CEP 31270-901, Brazil
| | - Maximiliano S Pinto
- Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Avenida Universitária, 1000, Bairro Universitário, Montes Claros, Minas Gerais, CEP 39401-790, Brazil
| | - Marcelo R de Souza
- Escola de Medicina Veterinária, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627 Pampulha, Belo Horizonte, MG, CEP 31270-901, Brazil
| | - Eduardo R Duarte
- Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Avenida Universitária, 1000, Bairro Universitário, Montes Claros, Minas Gerais, CEP 39401-790, Brazil. .,Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Av Universitária 1000, Bairro Universitario, Montes Claros, MG, 39400-006, Brazil.
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Ajiboye TO, Habibu RS, Saidu K, Haliru FZ, Ajiboye HO, Aliyu NO, Ibitoye OB, Uwazie JN, Muritala HF, Bello SA, Yusuf II, Mohammed AO. Involvement of oxidative stress in protocatechuic acid-mediated bacterial lethality. Microbiologyopen 2017; 6. [PMID: 28349673 PMCID: PMC5552917 DOI: 10.1002/mbo3.472] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 02/01/2017] [Accepted: 02/16/2017] [Indexed: 12/13/2022] Open
Abstract
The involvement of oxidative stress in protocatechuic acid‐mediated bacterial lethality was investigated. Minimum inhibitory concentrations (MIC) and minimum bactericidal concentration (MBC) of protocatechuic acid against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus are 600 and 700 μg/ml, 600 and 800 μg/ml, and 600 and 800 μg/ml, respectively. The optical densities and colony‐forming units of protocatechuic acid‐treated bacteria decreased in time‐dependent manner. Protocatechuic acid (4× MIC) significantly increased the superoxide anion content of E. coli, P. aeruginosa, and S. aureus compared to dimethyl sulfoxide (DMSO). Superoxide dismutase, catalase, and NAD+/NADH in protocatechuic acid‐treated E. coli, P. aeruginosa, and S. aureus increased significantly when compared to DMSO. Conversely, level of reduced glutathione decreased in protocatechuic acid‐treated E. coli, P. aeruginosa, and S. aureus, while glutathione disulfide increased when compared to DMSO. Furthermore, malondialdehyde and fragmented DNA increased significantly following exposure to protocatechuic acid. Protocatechuic acid inhibited the activity of complexes I and II. From the above findings, protocatechuic acid enhanced the generation of reactive oxygen species (superoxide anion radical and hydroxyl radical) in E. coli, P. aeruginosa, and S. aureus, possibly by autoxidation, fenton chemistry, and inhibiting electron transport chain resulting in lipid peroxidation and DNA fragmentation and consequentially bacterial cell death.
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Affiliation(s)
- Taofeek O Ajiboye
- Antioxidants, Redox Biology and Toxicology Research Laboratory, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Ramat S Habibu
- Antioxidants, Redox Biology and Toxicology Research Laboratory, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Kabiru Saidu
- Antioxidants, Redox Biology and Toxicology Research Laboratory, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Fatimah Z Haliru
- Antioxidants, Redox Biology and Toxicology Research Laboratory, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Hikmat O Ajiboye
- Department of Biochemistry, University of Ilorin, Ilorin, Nigeria
| | - Najeeb O Aliyu
- Department of Biochemistry, University of Ilorin, Ilorin, Nigeria
| | - Oluwayemisi B Ibitoye
- Antioxidants, Redox Biology and Toxicology Research Laboratory, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Judith N Uwazie
- Department of Biochemistry, University of Ilorin, Ilorin, Nigeria
| | | | - Sharafa A Bello
- Microbiology Unit, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Idris I Yusuf
- Microbiology Unit, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
| | - Aisha O Mohammed
- Microbiology Unit, Department of Biological Sciences, Al-Hikmah University, Ilorin, Nigeria
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Smirnova G, Bezmaternykh K, Oktyabrsky ON. The effect of 20-hydroxyecdysone on the susceptibility of Escherichia coli to different antibiotics. J Appl Microbiol 2016; 121:1511-1518. [PMID: 27681346 DOI: 10.1111/jam.13304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/25/2016] [Accepted: 08/09/2016] [Indexed: 11/29/2022]
Abstract
AIMS The aim of this study was to investigate the influence of 20-hydroxyecdysone (20E) on the susceptibility of growing Escherichia coli to antibiotics. METHODS AND RESULTS Susceptibility of E. coli to antibiotics in the presence of 20E was estimated by determination of the colony-forming ability and the specific growth rate. Pretreatment with 20E decreased the bactericidal effect of ciprofloxacin (0·3 and 3·0 μg ml-1 ), streptomycin (10 and 40 μg ml-1 ) and kanamycin (10 μg ml-1 ) and increased the bactericidal action of 0·03 μg ml-1 ciprofloxacin. To study the influence of 20E on gene expression, we used strains of E. coli carrying fusions of promoters of relevant genes with the structural gene of β-galactosidase. 20E had no marked effect on the expression of antioxidant genes katG, katE, sodA and the rpoS gene (general stress response), while it (alone or combined with ciprofloxacin) markedly stimulated expression of the sulA gene belonging to the SOS regulon (DNA damage response). CONCLUSION In growing E. coli, 20E modulated the bactericidal action of antibiotics and stimulated the SOS response. SIGNIFICANCE AND IMPACT OF THE STUDY The results of this study may be used to enhance the efficiency of antibacterial therapies.
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Affiliation(s)
- G Smirnova
- Laboratory of Physiology and Genetics of Microorganisms, Institute of Ecology and Genetics of Microorganisms, Russian Academy of Sciences, Perm, Russia
| | - K Bezmaternykh
- Laboratory of Physiology and Genetics of Microorganisms, Institute of Ecology and Genetics of Microorganisms, Russian Academy of Sciences, Perm, Russia
| | - O N Oktyabrsky
- Laboratory of Physiology and Genetics of Microorganisms, Institute of Ecology and Genetics of Microorganisms, Russian Academy of Sciences, Perm, Russia.,Department of Chemistry and Biotechnology, Perm National Research Polytechnic University, Perm, Russia
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Ajiboye T, Haliru F. Redox and respiratory chain related alterations in the lophirones B and C-mediated bacterial lethality. Microb Pathog 2016; 100:95-111. [DOI: 10.1016/j.micpath.2016.08.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 08/19/2016] [Accepted: 08/22/2016] [Indexed: 11/19/2022]
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Ajiboye T, Aliyu M, Isiaka I, Haliru F, Ibitoye O, Uwazie J, Muritala H, Bello S, Yusuf I, Mohammed A. Contribution of reactive oxygen species to (+)-catechin-mediated bacterial lethality. Chem Biol Interact 2016; 258:276-87. [DOI: 10.1016/j.cbi.2016.09.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 09/04/2016] [Accepted: 09/11/2016] [Indexed: 10/24/2022]
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Ajiboye T, Naibi A, Abdulazeez I, Alege I, Mohammed A, Bello S, Yusuf I, Ibitoye O, Muritala H. Involvement of oxidative stress in bactericidal activity of 2-(2-nitrovinyl) furan against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. Microb Pathog 2016; 91:107-14. [DOI: 10.1016/j.micpath.2015.11.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 11/11/2015] [Accepted: 11/19/2015] [Indexed: 12/21/2022]
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Calixto Júnior JT, Morais SM, Martins CG, Vieira LG, Morais-Braga MF, Carneiro JN, Machado AJ, Menezes IR, Tintino SR, Coutinho HD. Phytochemical analysis and modulation of antibiotic activity by Luehea paniculata Mart. & Zucc. (Malvaceae) in multiresistant clinical isolates of Candida spp. Biomed Res Int 2015; 2015:807670. [PMID: 25821822 DOI: 10.1155/2015/807670] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 01/16/2015] [Accepted: 01/16/2015] [Indexed: 11/18/2022]
Abstract
The high incidence of fungal infections has led to the continuous search for new drugs. Extracts of Luehea paniculata, a tree of multiple medicinal uses, were evaluated for anti-Candida activity, as well as its modulator potential of the Fluconazole antibiotic. Chemical prospecting of ethanol extracts of leaf and bark was carried out, the quantification of total phenols and flavonoids, characterized by the HPLC-DAD technique. The rosmarinic acid and the vitexin flavonoid were observed as major constituents in ELELP and ESWELP, respectively. Antioxidant activity was also evaluated by the method of scavenging the free radical DPPH, and quercetin was used as standard, obtaining IC50 values: 0.341 (mg/mL) for ELELP and 0.235 (mg/mL) for ESWELP. The microdilution assay was performed for antifungal activity against strains of Candida albicans, C. krusei, and C. tropicalis and showed minimum inhibitory concentrations values ≥1024 μg/mL. In the modulator action of extracts on Fluconazole against multiresistant clinical isolates of Candida (subinhibitory concentration minimum of 128 μg/mL), a significant synergism was observed, indicating that the extracts potentiated the antifungal effect against C. tropicalis, where antioxidant flavonoids could be responsible. This is the first report about modifying activity of the antibiotic action of a species of the genus Luehea.
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