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Arrigoni R, Ballini A, Jirillo E, Santacroce L. Current View on Major Natural Compounds Endowed with Antibacterial and Antiviral Effects. Antibiotics (Basel) 2024; 13:603. [PMID: 39061285 DOI: 10.3390/antibiotics13070603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024] Open
Abstract
Nowadays, infectious diseases of bacterial and viral origins represent a serious medical problem worldwide. In fact, the development of antibiotic resistance is responsible for the emergence of bacterial strains that are refractory even to new classes of antibiotics. Furthermore, the recent COVID-19 pandemic suggests that new viruses can emerge and spread all over the world. The increase in infectious diseases depends on multiple factors, including malnutrition, massive migration of population from developing to industrialized areas, and alteration of the human microbiota. Alternative treatments to conventional antibiotics and antiviral drugs have intensively been explored. In this regard, plants and marine organisms represent an immense source of products, such as polyphenols, alkaloids, lanthipeptides, and terpenoids, which possess antibacterial and antiviral activities. Their main mechanisms of action involve modifications of bacterial cell membranes, with the formation of pores, the release of cellular content, and the inhibition of bacterial adherence to host cells, as well as of the efflux pump. Natural antivirals can interfere with viral replication and spreading, protecting the host with the enhanced production of interferon. Of note, these antivirals are not free of side effects, and their administration to humans needs more research in terms of safety. Preclinical research with natural antibacterial and antiviral compounds confirms their effects against bacteria and viruses, but there are still only a few clinical trials. Therefore, their full exploitation and more intensive clinical studies represent the next steps to be pursued in this area of medicine.
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Affiliation(s)
- Roberto Arrigoni
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), 70124 Bari, Italy
| | - Andrea Ballini
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Emilio Jirillo
- Interdisciplinary Department of Medicine, Section of Microbiology and Virology, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Luigi Santacroce
- Interdisciplinary Department of Medicine, Section of Microbiology and Virology, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
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Khataybeh B, Jaradat Z, Ababneh Q. Anti-bacterial, anti-biofilm and anti-quorum sensing activities of honey: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116830. [PMID: 37400003 DOI: 10.1016/j.jep.2023.116830] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Man has used honey to treat diseases since ancient times, perhaps even before the history of medicine itself. Several civilizations have utilized natural honey as a functional and therapeutic food to ward off infections. Recently, researchers worldwide have been focusing on the antibacterial effects of natural honey against antibiotic-resistant bacteria. AIM OF THE STUDY This review aims to summarize research on the use of honey properties and constituents with their anti-bacterial, anti-biofilm, and anti-quorum sensing mechanisms of action. Further, honey's bacterial products, including probiotic organisms and antibacterial agents which are produced to curb the growth of other competitor microorganisms is addressed. MATERIALS AND METHODS In this review, we have provided a comprehensive overview of the antibacterial, anti-biofilm, and anti-quorum sensing activities of honey and their mechanisms of action. Furthermore, the review addressed the effects of antibacterial agents of honey from bacterial origin. Relevant information on the antibacterial activity of honey was obtained from scientific online databases such as Web of Science, Google Scholar, ScienceDirect, and PubMed. RESULTS Honey's antibacterial, anti-biofilm, and anti-quorum sensing activities are mostly attributed to four key components: hydrogen peroxide, methylglyoxal, bee defensin-1, and phenolic compounds. The performance of bacteria can be altered by honey components, which impact their cell cycle and cell morphology. To the best of our knowledge, this is the first review that specifically summarizes every phenolic compound identified in honey along with their potential antibacterial mechanisms of action. Furthermore, certain strains of beneficial lactic acid bacteria such as Bifidobacterium, Fructobacillus, and Lactobacillaceae, as well as Bacillus species can survive and even grow in honey, making it a potential delivery system for these agents. CONCLUSION Honey could be regarded as one of the best complementary and alternative medicines. The data presented in this review will enhance our knowledge of some of honey's therapeutic properties as well as its antibacterial activities.
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Affiliation(s)
- Batool Khataybeh
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Ziad Jaradat
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - Qutaiba Ababneh
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Gaubert J, Giovenazzo P, Derome N. Individual and social defenses in Apis mellifera: a playground to fight against synergistic stressor interactions. Front Physiol 2023; 14:1172859. [PMID: 37485064 PMCID: PMC10360197 DOI: 10.3389/fphys.2023.1172859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
The honeybee is an important species for the agri-food and pharmaceutical industries through bee products and crop pollination services. However, honeybee health is a major concern, because beekeepers in many countries are experiencing significant colony losses. This phenomenon has been linked to the exposure of bees to multiple stresses in their environment. Indeed, several biotic and abiotic stressors interact with bees in a synergistic or antagonistic way. Synergistic stressors often act through a disruption of their defense systems (immune response or detoxification). Antagonistic interactions are most often caused by interactions between biotic stressors or disruptive activation of bee defenses. Honeybees have developed behavioral defense strategies and produce antimicrobial compounds to prevent exposure to various pathogens and chemicals. Expanding our knowledge about these processes could be used to develop strategies to shield bees from exposure. This review aims to describe current knowledge about the exposure of honeybees to multiple stresses and the defense mechanisms they have developed to protect themselves. The effect of multi-stress exposure is mainly due to a disruption of the immune response, detoxification, or an excessive defense response by the bee itself. In addition, bees have developed defenses against stressors, some behavioral, others involving the production of antimicrobials, or exploiting beneficial external factors.
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Affiliation(s)
- Joy Gaubert
- Laboratoire Derome, Département de Biologie, Institut de Biologie Intégrative et des Systèmes, Université Laval, Québec, QC, Canada
- Laboratoire Giovenazzo, Département de Biologie, Université Laval, Québec, QC, Canada
| | - Pierre Giovenazzo
- Laboratoire Derome, Département de Biologie, Institut de Biologie Intégrative et des Systèmes, Université Laval, Québec, QC, Canada
| | - Nicolas Derome
- Laboratoire Derome, Département de Biologie, Institut de Biologie Intégrative et des Systèmes, Université Laval, Québec, QC, Canada
- Laboratoire Giovenazzo, Département de Biologie, Université Laval, Québec, QC, Canada
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Beyond the Risk of Biofilms: An Up-and-Coming Battleground of Bacterial Life and Potential Antibiofilm Agents. Life (Basel) 2023; 13:life13020503. [PMID: 36836860 PMCID: PMC9959329 DOI: 10.3390/life13020503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
Microbial pathogens and their virulence factors like biofilms are one of the major factors which influence the disease process and its outcomes. Biofilms are a complex microbial network that is produced by bacteria on any devices and/or biotic surfaces to escape harsh environmental conditions and antimicrobial effects. Due to the natural protective nature of biofilms and the associated multidrug resistance issues, researchers evaluated several natural anti-biofilm agents, including bacteriophages and their derivatives, honey, plant extracts, and surfactants for better destruction of biofilm and planktonic cells. This review discusses some of these natural agents that are being put into practice to prevent biofilm formation. In addition, we highlight bacterial biofilm formation and the mechanism of resistance to antibiotics.
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Delavault A, Zoheir AE, Muller D, Hollenbach R, Rabe KS, Ochsenreither K, Rudat J, Syldatk C. Enhanced Bioactivity of Tailor-Made Glycolipid Enriched Manuka Honey. Int J Mol Sci 2022; 23:ijms231912031. [PMID: 36233331 PMCID: PMC9570014 DOI: 10.3390/ijms231912031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/21/2022] [Accepted: 07/24/2022] [Indexed: 11/16/2022] Open
Abstract
Glycolipids can be synthetized in deep eutectic solvents (DESs) as they possess low water content allowing a reversed lipase activity and thus enables ester formation. Based on this principle, honey can also serve as a media for glycolipid synthesis. Indeed, this supersaturated sugar solution is comparable in terms of physicochemical properties to the sugar-based DESs. Honey-based products being commercially available for therapeutic applications, it appears interesting to enhance its bioactivity. In the current work, we investigate if enriching medical grade honey with in situ enzymatically-synthetized glycolipids can improve the antimicrobial property of the mixture. The tested mixtures are composed of Manuka honey that is enriched with octanoate, decanoate, laurate, and myristate sugar esters, respectively dubbed GOH, GDH, GLH, and GMH. To characterize the bioactivity of those mixtures, first a qualitative screening using an agar well diffusion assay has been performed with methicillin-resistant Staphylococcus aureus, Bacillus subtilis, Candida bombicola, Escherichia coli, and Pseudomonas putida which confirmed considerably enhanced susceptibility of these micro-organisms to the different glycolipid enriched honey mixtures. Then, a designed biosensor E. coli strain that displays a stress reporter system consisting of three stress-specific inducible, red, green, and blue fluorescent proteins which respectively translate to physiological stress, genotoxicity, and cytotoxicity was used. Bioactivity was, therefore, characterized, and a six-fold enhancement of the physiological stress that was caused by GOH compared to regular Manuka honey at a 1.6% (v/v) concentration was observed. An antibacterial agar well diffusion assay with E. coli was performed as well and demonstrated an improved inhibitory potential with GOH upon 20% (v/v) concentration.
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Affiliation(s)
- André Delavault
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Correspondence: ; Tel.: +49-721-608-467-39
| | - Ahmed E. Zoheir
- Department of Genetics and Cytology, National Research Center (NRC), Cairo 12622, Egypt
- Molecular Evolution, Institute for Biological Interfaces 1 (IBG-1), Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - Delphine Muller
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Rebecca Hollenbach
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Technikum Laubholz GmbH, Biotechnologische Konversion, 89143 Blaubeuren, Germany
| | - Kersten S. Rabe
- Molecular Evolution, Institute for Biological Interfaces 1 (IBG-1), Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - Katrin Ochsenreither
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Technikum Laubholz GmbH, Biotechnologische Konversion, 89143 Blaubeuren, Germany
| | - Jens Rudat
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Christoph Syldatk
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
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Aween MM, Hassan Z, Muhialdin BJ. Purification and identification of novel antibacterial peptides isolated from Tualang honey. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Mohamed Mustafa Aween
- Faculty of Science and Technology Universiti Sains Islam Malaysia (USIM) Bandar Baru Nilai Negeri Sembilan 71800 Malaysia
- Department of Pharmaceutical Technology Faculty of Medical Technology Misurata University Misurata 22900 Libya
| | - Zaiton Hassan
- Faculty of Science and Technology Universiti Sains Islam Malaysia (USIM) Bandar Baru Nilai Negeri Sembilan 71800 Malaysia
| | - Belal J. Muhialdin
- Department of Pharmaceutical Technology Faculty of Medical Technology Misurata University Misurata 22900 Libya
- Department of Food Science Faculty of Food Science and Technology Universiti Putra Malaysia Serdang Selangor 43400 Malaysia
- Halal Products Research Institute Universiti Putra Malaysia Serdang Selangor 43400 Malaysia
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Honey antibacterial activity: A neglected aspect of honey quality assurance as functional food. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
Honey, a concentrated natural product, is produced by honeybees (Apis mellifera) from the nectar of flowers. It contains over 200 compounds that exert various biological or pharmacological activities, ranging from antioxidant, anti-inflammatory, antimicrobial, and antihypertensive to hypoglycemic effects. Due to the presence of a plethora of bioactive compounds, as well as unique physicochemical properties, honey has been widely used as medicine throughout human history along with its extensive utilization as common food and flavoring agent. The application of neat honey for therapeutic purpose, however, poses some difficulties such as the maintenance of a required therapeutic concentration over an adequate timeframe due to the problem of liquefaction and leakage. This has driven researchers to incorporate honey into a range of formulations, for example, hydrogels, dressings, ointments, pastes, or lozenges. After a brief discussion of the chemistry and medicinal use of honey, this review focuses on commercial honey-based medicinal formulations as well as in vitro, in vivo, and clinical studies on noncommercial honey formulations for the treatment of various ailments. In addition to this, it also covers the application of honey formulations and the evidence underpinning their use.
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De Clercq E, Den Hondt S, De Baere C, Martens AM. Effects of various wound dressings on microbial growth in perfused equine musculocutaneous flaps. Am J Vet Res 2021; 82:189-197. [PMID: 33629894 DOI: 10.2460/ajvr.82.3.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To compare the effect of multiple wound dressings on microbial growth in a perfused equine wound model. SAMPLE Abdominal musculocutaneous flaps from 16 equine cadavers. PROCEDURES 8 full-thickness skin wound covered were created in each flap. Tissues were perfused with saline (0.9% NaCl) solution. Wounds were inoculated with methicillin-resistant Staphylococcus aureus (MRSA) or Pseudomonas aeruginosa (106 CFUs), incubated, and covered with a dressing containing activated charcoal, boric acid, cadexomer iodine, calcium alginate, manuka honey, nanoparticle silver, or polyhexamethylene biguanide or with a control (nonadherent gauze) dressing. Muscle biopsy specimens were obtained at baseline (immediately prior to dressing application) and 6, 12, 18, and 24 hours later for mean bacterial load (MBL) determination. The MBLs at each subsequent time point were compared with that at baseline within dressing types, and MBLs at each time point were compared among dressing types. RESULTS MBLs in MRSA-inoculated wounds covered with cadexomer iodine dressings were significantly decreased from baseline at the 6- and 12-hour time points. For P aeruginosa-inoculated wounds, MBLs were significantly increased from baseline in all wounds at various times except for wounds with cadexomer iodine dressings. The MBLs of wounds with cadexomer iodine dressings were lower than all others, although not always significantly different from those for wounds with boric acid, manuka honey, nanoparticle silver, and polyhexamethylene biguanide dressings. CONCLUSIONS AND CLINICAL RELEVANCE In this nonviable perfused wound model, growth of MRSA and P aeruginosa was most effectively reduced or inhibited by cadexomer iodine dressings. These results and the effect of the dressings on wound healing should be confirmed with in vivo studies.
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Guttentag A, Krishnakumar K, Cokcetin N, Harry E, Carter D. Factors affecting the production and measurement of hydrogen peroxide in honey samples. Access Microbiol 2021; 3:000198. [PMID: 34151153 PMCID: PMC8209695 DOI: 10.1099/acmi.0.000198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/17/2020] [Indexed: 11/18/2022] Open
Abstract
Many Australian native honeys possess significant antimicrobial properties due to the production of hydrogen peroxide (H2O2) by glucose oxidase, an enzyme derived from the honeybee. The level of H2O2 produced in different honey samples is highly variable, and factors governing its production and stability are not well understood. In this study, highly active Australian honeys that had been stored for >10 years lost up to 54 % of their antibacterial activity, although almost all retained sufficient activity to be considered potentially therapeutically useful. We used a simple colourimetric assay to quantify H2O2 production. Although we found a significant correlation between H2O2 production and antibacterial activity across diverse honey samples, variation in H2O2 only explained 47 % of the variation observed in activity, limiting the assay as a screening tool and highlighting the complexity of the relationship between H2O2 and the killing power of honey. To further examine this, we tested whether H2O2 detection in honey was being inhibited by pigmented compounds and if H2O2 might be directly degraded in some honey samples. We found no correlation between H2O2 detection and honey colour. Some honey samples rapidly lost endogenous and spiked H2O2, suggesting that components in honey, such as catalase or antioxidant polyphenols, may degrade or quench H2O2. Despite this rapid loss of H2O2, these honeys had significant peroxide-based antibacterial activity, indicating a complex relationship between H2O2 and other honey components that may act synergistically to augment activity.
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Affiliation(s)
- Annabel Guttentag
- School of Life and Environmental Sciences and the Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW 2006, Australia
| | - Krishothman Krishnakumar
- School of Life and Environmental Sciences and the Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW 2006, Australia
| | - Nural Cokcetin
- ithree Institute, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Elizabeth Harry
- ithree Institute, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Dee Carter
- School of Life and Environmental Sciences and the Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW 2006, Australia
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McLoone P, Tabys D, Fyfe L. Honey Combination Therapies for Skin and Wound Infections: A Systematic Review of the Literature. CLINICAL, COSMETIC AND INVESTIGATIONAL DERMATOLOGY 2020; 13:875-888. [PMID: 33262630 PMCID: PMC7700082 DOI: 10.2147/ccid.s282143] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/10/2020] [Indexed: 12/22/2022]
Abstract
Topical application of medical grade honey is recommended for the clinical management of wound infections. The suitability of honey as a wound healing agent is largely due to its antibacterial activity, immune modulatory properties, and biocompatibility. Despite the usefulness of honey in wound healing, chronic wound infections continue to be a global problem requiring new and improved therapeutic interventions. Several recent studies have investigated the effects of combining honey with other therapies or agents with the aim of finding more efficacious treatments. In this systematic review, the database PubMed was used to carry out a search of the scientific literature on the combined effects of honey and other therapies on antimicrobial activity and wound and skin healing. The search revealed that synergistic or additive antimicrobial effects were observed in vitro when honey was combined with antibiotics, bacteriophages, antimicrobial peptides, natural agents, eg, ginger or propolis and other treatment approaches such as the use of chitosan hydrogel. Outcomes depended on the type of honey, the combining agent or treatment and the microbial species or strain. Improved wound healing was also observed in vivo in mice when honey was combined with laser therapy or bacteriophage therapy. More clinical studies in humans are required to fully understand the effectiveness of honey combination therapies for the treatment of skin and wound infections.
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Affiliation(s)
- Pauline McLoone
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Nur-Sultan 010000, Kazakhstan
| | - Dina Tabys
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Nur-Sultan 010000, Kazakhstan
| | - Lorna Fyfe
- Dietetics, Nutrition, and Biological Sciences, Queen Margaret University, Musselburgh, East Lothian EH21 6UU, UK
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Combarros-Fuertes P, Fresno JM, Estevinho MM, Sousa-Pimenta M, Tornadijo ME, Estevinho LM. Honey: Another Alternative in the Fight against Antibiotic-Resistant Bacteria? Antibiotics (Basel) 2020; 9:antibiotics9110774. [PMID: 33158063 PMCID: PMC7694208 DOI: 10.3390/antibiotics9110774] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 02/06/2023] Open
Abstract
Antibacterial resistance has become a challenging situation worldwide. The increasing emergence of multidrug-resistant pathogens stresses the need for developing alternative or complementary antimicrobial strategies, which has led the scientific community to study substances, formulas or active ingredients used before the antibiotic era. Honey has been traditionally used not only as a food, but also with therapeutic purposes, especially for the topical treatment of chronic-infected wounds. The intrinsic characteristics and the complex composition of honey, in which different substances with antimicrobial properties are included, make it an antimicrobial agent with multiple and different target sites in the fight against bacteria. This, together with the difficulty to develop honey-resistance, indicates that it could become an effective alternative in the treatment of antibiotic-resistant bacteria, against which honey has already shown to be effective. Despite all of these assets, honey possesses some limitations, and has to fulfill a number of requirements in order to be used for medical purposes.
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Affiliation(s)
- Patricia Combarros-Fuertes
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, University of León, Campus de Vegazana, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - José M. Fresno
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, University of León, Campus de Vegazana, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - Maria Manuela Estevinho
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
| | - Mário Sousa-Pimenta
- Department of Onco-Hematology, Portuguese Institute of Oncology of Porto (IPO-Porto), 4200-072 Porto, Portugal;
| | - M. Eugenia Tornadijo
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, University of León, Campus de Vegazana, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - Leticia M. Estevinho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
- Correspondence: ; Tel.: +351-273303342
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Ramón-Sierra J, Martínez-Guevara JL, Pool-Yam L, Magaña-Ortiz D, Yam-Puc A, Ortiz-Vázquez E. Effects of phenolic and protein extracts from Melipona beecheii honey on pathogenic strains of Escherichia coli and Staphylococcus aureus. Food Sci Biotechnol 2020; 29:1013-1021. [PMID: 32582463 DOI: 10.1007/s10068-020-00744-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 02/24/2020] [Accepted: 02/27/2020] [Indexed: 10/24/2022] Open
Abstract
Antimicrobial effects of Melipona beecheii honey have been attributed to diverse factors, in this sense, certain components such as proteins and phenolics could explain relevant aspects of its antimicrobial activity. The aim of this study was to evaluate the antibacterial activity of phenolic and protein extracts from M. beecheii honey against two bacterial pathogens: Staphylococcus aureus and Escherichia coli. With respect to phenolic content, HPLC analysis allowed the identification of phenolic acids like chlorogenic acid, caffeic acid, and flavonoids like catechin, myricetin, quercetin and apigenin. On the other hand, seven bands with molecular weight from 7.6 to 95 kDa were detected in protein extract by SDS-PAGE system. It was determined the antibacterial activity of both extracts, with MICs lower than 145 µg/mL and 60 µg/mL for the phenolic and protein extracts respectively. These results indicate that phenolic and protein components of M. beecheii honey contribute significantly to the antibacterial activity.
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Affiliation(s)
- Jesús Ramón-Sierra
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico de Mérida, Av. Tecnológico km. 4.5 S/N, C.P. 97118 Mérida, Yucatán Mexico
| | - José Luis Martínez-Guevara
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Luis Pool-Yam
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico de Mérida, Av. Tecnológico km. 4.5 S/N, C.P. 97118 Mérida, Yucatán Mexico
| | - Denis Magaña-Ortiz
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico de Mérida, Av. Tecnológico km. 4.5 S/N, C.P. 97118 Mérida, Yucatán Mexico
| | - Alejandro Yam-Puc
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico de Mérida, Av. Tecnológico km. 4.5 S/N, C.P. 97118 Mérida, Yucatán Mexico
| | - Elizabeth Ortiz-Vázquez
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico de Mérida, Av. Tecnológico km. 4.5 S/N, C.P. 97118 Mérida, Yucatán Mexico
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Majtan J, Sojka M, Palenikova H, Bucekova M, Majtan V. Vitamin C Enhances the Antibacterial Activity of Honey against Planktonic and Biofilm-Embedded Bacteria. Molecules 2020; 25:molecules25040992. [PMID: 32102181 PMCID: PMC7070301 DOI: 10.3390/molecules25040992] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/18/2020] [Accepted: 02/22/2020] [Indexed: 12/20/2022] Open
Abstract
Multifactorial antibacterial action is an important feature of honey; however, its bactericidal efficacy against biofilm-embedded bacteria is limited. The aim of this study was to investigate the impact of vitamin C (Vit C) on the antibacterial activity of natural honeys against planktonic as well as biofilm-embedded bacterial pathogens. The antibacterial activity of four honey samples supplemented with Vit C was expressed as the minimum inhibitory concentration (MIC). At sub-MICs, Vit C significantly increased the antibacterial activity of the tested honeys against Pseudomonas aeruginosa in planktonic cultures. However, after supplementation, honeydew honey, the most active honey, was ineffective against Staphylococcus aureus. On the other hand, when 100% honeydew honey was supplemented with Vit C (100 mg/g of honey) in a multispecies wound biofilm model, complete eradication of almost all bacterial isolates, including S. aureus, was observed. Furthermore, a mixture of honey and Vit C was partially effective against Enterococcus faecalis, whereas honey alone exhibited no antibacterial activity against this bacterium. Vit C counteracted hydrogen peroxide in honey solution and, thus, eliminated the major antibacterial compound present in honey. It is likely that a combination of honey with Vit C may trigger the intracellular production of reactive oxygen species in bacterial cells, but the exact cellular mechanisms warrant further investigations.
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Affiliation(s)
- Juraj Majtan
- Laboratory of Apidology and Apitherapy, Department of Microbial Genetics, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51 Bratislava, Slovakia; (H.P.); (M.B.)
- Correspondence: ; Tel.: +421-903-869413
| | - Martin Sojka
- Department of Microbiology, Faculty of Medicine, Slovak Medical University, Limbova 12, 833 03 Bratislava, Slovakia; (M.S.); (V.M.)
- Regional Health Public Authority, Medercska 39, 945 75 Komarno, Slovakia
| | - Helena Palenikova
- Laboratory of Apidology and Apitherapy, Department of Microbial Genetics, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51 Bratislava, Slovakia; (H.P.); (M.B.)
| | - Marcela Bucekova
- Laboratory of Apidology and Apitherapy, Department of Microbial Genetics, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51 Bratislava, Slovakia; (H.P.); (M.B.)
- Protein Science Lab, Department of Biological Sciences, University of Singapore, Singapore 119077, Singapore
| | - Viktor Majtan
- Department of Microbiology, Faculty of Medicine, Slovak Medical University, Limbova 12, 833 03 Bratislava, Slovakia; (M.S.); (V.M.)
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15
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Lu J, Cokcetin NN, Burke CM, Turnbull L, Liu M, Carter DA, Whitchurch CB, Harry EJ. Honey can inhibit and eliminate biofilms produced by Pseudomonas aeruginosa. Sci Rep 2019; 9:18160. [PMID: 31796774 PMCID: PMC6890799 DOI: 10.1038/s41598-019-54576-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 11/12/2019] [Indexed: 01/22/2023] Open
Abstract
Chronic wound treatment is becoming increasingly difficult and costly, further exacerbated when wounds become infected. Bacterial biofilms cause most chronic wound infections and are notoriously resistant to antibiotic treatments. The need for new approaches to combat polymicrobial biofilms in chronic wounds combined with the growing antimicrobial resistance crisis means that honey is being revisited as a treatment option due to its broad-spectrum antimicrobial activity and low propensity for bacterial resistance. We assessed four well-characterised New Zealand honeys, quantified for their key antibacterial components, methylglyoxal, hydrogen peroxide and sugar, for their capacity to prevent and eradicate biofilms produced by the common wound pathogen Pseudomonas aeruginosa. We demonstrate that: (1) honey used at substantially lower concentrations compared to those found in honey-based wound dressings inhibited P. aeruginosa biofilm formation and significantly reduced established biofilms; (2) the anti-biofilm effect of honey was largely driven by its sugar component; (3) cells recovered from biofilms treated with sub-inhibitory honey concentrations had slightly increased tolerance to honey; and (4) honey used at clinically obtainable concentrations completely eradicated established P. aeruginosa biofilms. These results, together with their broad antimicrobial spectrum, demonstrate that manuka honey-based wound dressings are a promising treatment for infected chronic wounds, including those with P. aeruginosa biofilms.
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Affiliation(s)
- Jing Lu
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Nural N Cokcetin
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Catherine M Burke
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Lynne Turnbull
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Michael Liu
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Dee A Carter
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, 2006, Australia
| | - Cynthia B Whitchurch
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Elizabeth J Harry
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
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16
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Lehmann DM, Krishnakumar K, Batres MA, Hakola-Parry A, Cokcetin N, Harry E, Carter DA. A cost-effective colourimetric assay for quantifying hydrogen peroxide in honey. Access Microbiol 2019; 1:e000065. [PMID: 32974499 PMCID: PMC7491932 DOI: 10.1099/acmi.0.000065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/17/2019] [Indexed: 01/22/2023] Open
Abstract
Honey is a natural product with many beneficial properties including antimicrobial action. Production of hydrogen peroxide (H2O2) in diluted honey is central to this action. Here, we describe an optimized method for measuring levels of H2O2 in honey. This method is based on established methods, with the level of dilution, the time between dilution and reading the assay, and aeration of the samples during the assay identified as critical points for ensuring reliability and reproducibility. The method is cost-effective and easy to perform using common laboratory equipment. Using this method, we quantified the hydrogen peroxide content of five different, unprocessed polyfloral honeys collected in NC, USA. Our results show that H2O2 production by these honeys varies greatly, with some samples producing negligible levels of H2O2. We assessed the effect of colour on the assay by measuring the recovery of spiked H2O2 from light and dark honey and from serially diluted dark corn syrup, and found the amount of H2O2 that could be detected was lower in dark corn syrup and darker honey samples.
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Affiliation(s)
- D M Lehmann
- Immediate Office, National Health and Environmental Effects Research Laboratory (NHEERL), US - Environmental Protection Agency, Research Triangle Park, NC, USA
| | - K Krishnakumar
- School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia
| | - M A Batres
- Oak Ridge Associated Universities, Raleigh, NC, USA
| | - A Hakola-Parry
- School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia
| | - N Cokcetin
- ithree Institute, University of Technology Sydney, NSW 2007, Australia
| | - E Harry
- ithree Institute, University of Technology Sydney, NSW 2007, Australia
| | - D A Carter
- School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia.,Marie Bashir Institute, University of Sydney, NSW 2006, Australia
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17
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Henry N, Jeffery S, Radotra I. Properties and use of a honey dressing and gel in wound management. ACTA ACUST UNITED AC 2019; 28:S30-S35. [PMID: 30925246 DOI: 10.12968/bjon.2019.28.6.s30] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Wound management is a major clinical challenge and puts a significant financial burden on the NHS. Because of the rise in long-term conditions including diabetes, obesity and an ageing population, practitioners regularly encounter a wide variety of wound types. In recent years, there has been a resurgence of interest in the use of medical-grade honey in the management of wounds. Honey is anti-inflammatory in action and has the capability to treat local infection, promote autolytic debridement, deodorise wounds and promote granulation tissue. Revamil is a recent addition to the range of honey dressings available and is intended to manage the majority of problems that may arise during wound care episodes. The attributes of Revamil will be illustrated through four case studies.
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Affiliation(s)
- Nader Henry
- Plastic Surgery ST3 Registrar, Health Education England West Midlands, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust
| | - Steven Jeffery
- Professor of Wound Healing, Birmingham City University, Honorary Visiting Professor, Cardiff University
| | - Ishan Radotra
- Plastic Surgery ST3 Registrar, Health Education England West Midlands, Sandwell District General Hospital, Sandwell and West Birmingham Hospitals NHS Trust
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18
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Hussain MB, Kamel YM, Ullah Z, Jiman-Fatani AAM, Ahmad AS. In vitro evaluation of methicillin-resistant and methicillin-sensitive Staphylococcus aureus susceptibility to Saudi honeys. Altern Ther Health Med 2019; 19:185. [PMID: 31345195 PMCID: PMC6659206 DOI: 10.1186/s12906-019-2603-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 07/18/2019] [Indexed: 12/27/2022]
Abstract
Background Honey has been increasingly recognized as a potential therapeutic agent for treatment of wound infections. There is an urgent need for assessment and evaluation of the antibacterial properties against wound pathogens of honeys that have not yet been tested. Methods Ten Saudi honeys collected from different geographical locations were screened initially for their antibacterial potential against methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive Staphylococcus aureus (MSSA) by the agar well diffusion method. Manuka honey (UMF-12) was used for comparison. Of the tested honeys, the honey that exhibited the greatest antibacterial activity in the agar well diffusion assay was further evaluated for its minimum inhibitory concentration (MIC) against ten MRSA clinical isolates and three American Type Culture Collection (ATCC) reference strains by the microbroth dilution method. Results Locally produced honeys exhibited variable antibacterial activity against the tested isolates in the agar well diffusion assay. They were unable to exhibit antibacterial activity against MSSA and MRSA at 25% dilutions (w/v) in catalase solution. However, Sumra and Talha honeys showed a zone of inhibition at 50% dilutions (w/v) in catalase solution. This finding means that both honeys possess weak non-peroxide-based antibacterial activity. Moreover, Sumra honey showed a larger inhibition zone at 50 and 25% dilutions (w/v) in distilled water than Manuka honey against both MSSA and MRSA. This result demonstrates that Sumra honey has more hydrogen peroxide-related antibacterial activity or total antibacterial activity than Manuka honey. In addition, MIC results obtained through a microbroth dilution assay showed that Sumra honey inhibited the growth of all MRSA clinical isolates (n = 10) and reference strains [MRSA (ATCC 43300) and MSSA (ATCC 29213)] at lower concentrations (12.0% v/v) than those required for Manuka honey-mediated inhibition (14.0% v/v). This result means that Sumra honey has more peroxide or synergistic antibacterial activity than Manuka honey. An equivalent MIC (15.0% v/v) was observed for E. coli (ATCC 25922) between Manuka honey and Sumra honey. Conclusions Sumra honey may be used as an alternative therapeutic agent for infected wounds and burns, where additional hydrogen peroxide-related antibacterial activity is needed. In the future, the physiochemical characteristics of Sumra honey may be evaluated and standardized.
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19
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Antibacterial Activity of Honey against Methicillin-Resistant Staphylococcus aureus: A Laboratory-Based Experimental Study. Int J Microbiol 2019; 2019:7686130. [PMID: 31073310 PMCID: PMC6470442 DOI: 10.1155/2019/7686130] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 03/20/2019] [Indexed: 01/17/2023] Open
Abstract
Background Antimicrobial drug resistance is one of the serious issues this world is facing nowadays, and increased cost of searching for effective antimicrobial agents and the decreased rate of new drug discovery have made the situation increasingly worrisome. Objective The aim of this study is to determine in vitro antibacterial activity of honey against methicillin-resistant Staphylococcus aureus isolates from wound infection. Methods An experimental study was conducted from May to November 2017. Methicillin resistance was detected using cefoxitin (30 μg) and oxacillin (1 μg) antibiotic discs. Different concentrations of honey (25–100% v/v) were tested against each type of clinical isolates obtained from wound infection. A preliminary sensitivity test was done to all types of honey by using disk diffusion while minimum inhibitory concentration and minimum bactericidal concentration were determined for the most potent honey by the broth dilution technique. All statistical analysis was performed by using Statistical Package for the Social Sciences version 20. Results In this study, 36 bacterial isolates were recovered from 50 specimens, showing an isolation rate of 72%. The predominant bacteria isolated from the infected wounds were Staphylococcus aureus (15, 41.7%). Among identified Staphylococcus aureus, methicillin resistance accounts for 10 isolates (27.8%). All isolates showed a high frequency of resistance to tetracycline. Four collected honey varieties exhibited antibacterial activity, while the strongest inhibitory activity was demonstrated by honey-2 at 75% v/v. The mean MIC and MBC of honey-2 ranged from 9.38 to 37.5% v/v. Conclusions Tested honey has both a bacteriostatic and bactericidal activity. Among the tested honey, “honey-2” had high antibacterial potency than others.
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20
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Escárcega-Galaz AA, Sánchez-Machado DI, López-Cervantes J, Sanches-Silva A, Madera-Santana TJ, Paseiro-Losada P. Mechanical, structural and physical aspects of chitosan-based films as antimicrobial dressings. Int J Biol Macromol 2018; 116:472-481. [DOI: 10.1016/j.ijbiomac.2018.04.149] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/11/2018] [Accepted: 04/28/2018] [Indexed: 01/15/2023]
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21
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Habluetzel A, Schmid C, Carvalho TS, Lussi A, Eick S. Impact of honey on dental erosion and adhesion of early bacterial colonizers. Sci Rep 2018; 8:10936. [PMID: 30026515 PMCID: PMC6053432 DOI: 10.1038/s41598-018-29188-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/05/2018] [Indexed: 01/20/2023] Open
Abstract
The aim was to investigate if honey causes erosion and if salivary pellicle modified with honey, or its components, or the by-product propolis has a protective effect against dental erosion and adhesion of early bacterial colonizers. The tested substances were: 3 types of honey, methylglyoxal (MGO), hydrogen peroxide, propolis. First in the erosion experiment, 120 human enamel specimens were covered with salivary pellicle and modified with the substances. Then they were eroded with 1% citric acid, pH 3.6 for 2 min, before surface hardness was measured. In the microbiological assay, the enamel specimens (n = 126) covered with modified salivary pellicle were contaminated with bacterial suspensions. The antimicrobial activity of each substance and their effect on early bacterial colonizer adhesion and biofilm formation were determined. Despite a low pH, honey did not cause erosion. On the other hand, pellicle modification with the tested solutions did not protect the enamel from erosion. Microbiologically, the 3 honeys inhibited species-specific growth of oral bacteria. Propolis decreased initial attachment of Streptococcus gordonii, while one honey inhibited demineralization of enamel by biofilm. In conclusion, pellicle modification with honey, or its components, or propolis did neither protect against erosion nor promote it. Propolis presented some bacterial adhesion inhibition.
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Affiliation(s)
- Alexandra Habluetzel
- Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland.
| | - Christoph Schmid
- Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Thiago S Carvalho
- Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Adrian Lussi
- Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Sigrun Eick
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
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22
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The Antibacterial Effect In Vitro of Honey Derived from Various Danish Flora. Dermatol Res Pract 2018; 2018:7021713. [PMID: 30018636 PMCID: PMC6029468 DOI: 10.1155/2018/7021713] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/21/2018] [Accepted: 05/24/2018] [Indexed: 11/23/2022] Open
Abstract
The mechanism behind the biologic actions of honey as a wound remedy has been intensively studied; however, there is no published data regarding any antibacterial effect of honey derived from Danish flora. We surveyed 11 honeys of various Danish floral sources for their antibacterial activity and compared them to a culinary processed commercial honey (Jakobsens) and a raw and a medical grade Manuka (Leptospermum scoparium) honey using the agar-well diffusion method. We tested the effect on three gram-positive bacteria (two strains of Staphylococcus aureus and one strain of Staphylococcus epidermidis) and two gram-negative bacteria (Pseudomonas aeruginosa and Escherichia coli). All samples, except the commercial honey, exhibited antibacterial activity, and samples derived from Water Mint (Mentha aquatica), Organic 2 (mixed organic flora), and Linden (Tilia cordata) honey had consistent effects on all bacteria tested and showed greater effect than medical grade and raw Manuka (L. scoparium) honey. The content of methylglyoxal was low in the Danish honey (< 2 μg/mL) and significantly (p<0.05) higher in both the raw and the medical grade Manuka (L. scoparium) honey, where the concentrations were, respectively, 6.29 μg/mL and 54.33 μg/mL. The antibacterial effect of Danish honeys was mostly due to hydrogen peroxide. We conclude that honeys derived from Danish flora possess antibacterial effect, probably by a hurdle effect of viscosity, osmolality, acidity, bioactive peptides, and most importantly the content of hydrogen peroxide. These findings indicate that honeys of various Danish floral sources may have clinical potential, although further studies are necessary to elucidate this in order to determine whether the results of our in vitro experiments also apply to a clinical setting.
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23
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Synthetic antimicrobial peptides delocalize membrane bound proteins thereby inducing a cell envelope stress response. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2416-2427. [PMID: 29894683 DOI: 10.1016/j.bbamem.2018.06.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 05/24/2018] [Accepted: 06/06/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Three amphipathic cationic antimicrobial peptides (AMPs) were characterized by determining their effect on Gram-positive bacteria using Bacillus subtilis strain 168 as a model organism. These peptides were TC19 and TC84, derivatives of thrombocidin-1 (TC-1), the major AMPs of human blood platelets, and Bactericidal Peptide 2 (BP2), a synthetic designer peptide based on human bactericidal permeability increasing protein (BPI). METHODS To elucidate the possible mode of action of the AMPs we performed a transcriptomic analysis using microarrays. Physiological analyses were performed using transmission electron microscopy (TEM), fluorescence microscopy and various B. subtilis mutants that produce essential membrane bound proteins fused to green fluorescent protein (GFP). RESULTS The transcriptome analysis showed that the AMPs induced a cell envelope stress response (cell membrane and cell wall). The cell membrane stress response was confirmed with the physiological observations that TC19, TC84 and BP2 perturb the membrane of B. subtilis. Using B. subtilis mutants, we established that the cell wall stress response is due to the delocalization of essential membrane bound proteins involved in cell wall synthesis. Other essential membrane proteins, involved in cell membrane synthesis and metabolism, were also delocalized due to alterations caused by the AMPs. CONCLUSIONS We showed that peptides TC19, TC84 and BP2 perturb the membrane causing essential proteins to delocalize, thus preventing the possible repair of the cell envelope after the initial interference with the membrane. GENERAL SIGNIFICANCE These AMPs show potential for eventual clinical application against Gram-positive bacterial cells and merit further application-oriented investigation.
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Moloudian H, Abbasian S, Nassiri-Koopaei N, Tahmasbi MR, alsadat Afzal G, Ahosseini MS, Yunesian M, Khoshayand MR. Characterization and Classification of Iranian Honey Based on Physicochemical Properties and Antioxidant Activities, with Chemometrics Approach. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2018; 17:708-725. [PMID: 29881428 PMCID: PMC5985188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
In the present study, the physicochemical properties and antioxidant activities of different Iranian honey samples are investigated using various multivariate techniques in order to develop a quality control model. Forty-eight Iranian honey samples were tested for 15 physicochemical and antioxidant parameters. The parameters for which the samples were tested included color intensity, moisture, electrical conductivity, pH, free acidity, diastase activity, hydroxymethylfurfural content, proline level, total phenolic content, antioxidant activity, and radical scavenging activity. The study attempted to differentiate honey samples based on origin and composition. In the study, the Iranian honey samples were classified according to their respective physiochemical properties and antioxidant activities using principal component analysis and hierarchical cluster analysis. Furthermore, the relationships between the geographical and botanical origins were determined for the samples used in the study.
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Affiliation(s)
- Hamid Moloudian
- Pharmaceutical Quality Assurance Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sepideh Abbasian
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Nasser Nassiri-Koopaei
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Reza Tahmasbi
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Golnaz alsadat Afzal
- Pharmaceutical Quality Assurance Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Maryam Sadat Ahosseini
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Reza Khoshayand
- Pharmaceutical Quality Assurance Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Corresponding author: E-mail:
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Abstract
BACKGROUND The development of bacterial resistance to antibiotics has made it more difficult and expensive to treat infections. Honey is getting worldwide attention as a topical therapeutic agent for wound infections and potential future candidate for systemic infections. OBJECTIVES The purpose of this review was to summarise different antibacterial bio-active compounds in honey, their synergistic interaction and their clinical implications in topical and systemic infections. In addition, contemporary testing methods for evaluating peroxide and non-peroxide antibacterial activity of honey were also critically appraised. DESIGN MEDLINE, EMBASE, Cochrane Library, Pub Med, reference lists and databases were used to review the literature. RESULTS Honey contains several unique antibacterial components. These components are believed to act on diverse bacterial targets, are broad spectrum, operate synergistically, prevent biofilm formation, and decrease production of virulence factors. Moreover, honey has the ability to block bacterial communication (quorum sensing), and therefore, it is unlikely that bacteria develop resistance against honey. Bacterial resistance against honey has not been documented so far. Unlike conventional antibiotics, honey only targets pathogenic bacteria without disturbing the growth of normal gastrointestinal flora when taken orally. It also contains prebiotics, probiotics, and zinc and enhances the growth of beneficial gut flora. The presence of such plethora of antibacterial properties in one product makes it a promising candidate not only in wound infections but also in systemic and particularly for gastrointestinal infections. Agar diffusion assay, being used for evaluating antibacterial activity of honey, is not the most appropriate and sensitive assay as it only detects non-peroxide activity when present at a higher level. Therefore, there is a need to develop more sensitive techniques that may be capable of detecting and evaluating different important components in honey as well as their synergistic interaction. CONCLUSIONS Keeping in view the current guidelines for treatment of diarrhea, honey is considered one of the potential candidates for treatment of diarrhea because it contains a natural combination of probiotics, prebiotics, and zinc. Therefore, it would be worthwhile if such a combination is tested in RCTs for treatment of diarrhea.
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Affiliation(s)
- Muhammad Barkaat Hussain
- Department of Microbiology, Faculty of Medicine, Rabigh Medical College, King Abdul Aziz University , Jeddah, Saudi Arabia
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26
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Khan SU, Anjum SI, Rahman K, Ansari MJ, Khan WU, Kamal S, Khattak B, Muhammad A, Khan HU. Honey: Single food stuff comprises many drugs. Saudi J Biol Sci 2017; 25:320-325. [PMID: 29472785 PMCID: PMC5815988 DOI: 10.1016/j.sjbs.2017.08.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/16/2017] [Accepted: 08/14/2017] [Indexed: 01/22/2023] Open
Abstract
Honey is a natural food item produced by honey bees. Ancient civilizations considered honey as a God gifted prestigious product. Therefore, a huge literature is available regarding honey importance in almost all religions. Physically, honey is a viscous and jelly material having no specific color. Chemically, honey is a complex blend of many organic and inorganic compounds such as sugars, proteins, organic acids, pigments, minerals, and many other elements. Honey use as a therapeutic agent is as old as human civilization itself. Prior to the appearance of present day drugs, honey was conventionally used for treating many diseases. At this instant, the modern research has proven the medicinal importance of honey. It has broad spectrum anti-biotic, anti-viral and anti-fungal activities. Honey prevents and kills microbes through different mechanism such as elevated pH and enzyme activities. Till now, no synthetic compound that works as anti-bacterial, anti-viral and anti-fungal drugs has been reported in honey yet it works against bacteria, viruses and fungi while no anti-protozoal activity has been reported. Potent anti-oxidant, anti-inflammatory and anti-cancerous activities of honey have been reported. Honey is not only significant as anti-inflammatory drug that relieve inflammation but also protect liver by degenerative effects of synthetic anti-inflammatory drugs. This article reviews physico-chemical properties, traditional use of honey as medicine and mechanism of action of honey in the light of modern scientific medicinal knowledge.
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Affiliation(s)
| | - Syed Ishtiaq Anjum
- Department of Zoology, Kohat University of Science and Technology, Kohat 26000, Pakistan
- Corresponding author.
| | - Khaista Rahman
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Mohammad Javed Ansari
- Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Wasim Ullah Khan
- School of Chemistry and Chemical Engineering, Sun Yat- Sen University, Guangzhou 510275, PR China
| | - Sajid Kamal
- School of Biotechnology, Jiangnan University, Wuxi 214122, PR China
| | - Baharullah Khattak
- Department of Microbiology, Kohat University of Science & Technology, Kohat 26000, Pakistan
| | - Ali Muhammad
- Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hikmat Ullah Khan
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
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27
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Albietz JM, Schmid KL. Randomised controlled trial of topical antibacterial Manuka (Leptospermum species) honey for evaporative dry eye due to meibomian gland dysfunction. Clin Exp Optom 2017; 100:603-615. [PMID: 28585260 DOI: 10.1111/cxo.12524] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 12/03/2016] [Accepted: 12/13/2016] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The aim was to evaluate the efficacy of standardised Manuka (Leptospermum species) antibacterial honey as adjunctive twice daily treatment to conventional therapy (warm compresses, lid massage and preservative-free lubricant), in participants with evaporative dry eye due to moderate to advanced meibomian gland dysfunction. METHODS This prospective, open-label study involved 114 participants. After two weeks of conventional therapy participants were randomised to one of three treatment groups: Optimel Antibacterial Manuka Eye Gel (98 per cent Leptospermum species honey) plus conventional therapy (n = 37), Optimel Manuka plus Lubricant Eye Drops (16 per cent Leptospermum species honey) plus conventional therapy (n = 37) and a control (conventional therapy) (n = 40). Clinical evaluations performed at baseline and Week 8 included: symptom scores (Ocular Surface Disease Index, Ocular Comfort Index), daily lubricant use, tear assessments (break-up time, secretion, osmolarity and InflammaDry), corneal sensation, ocular surface staining, meibomian gland secretion quality and expressibility, bulbar conjunctival, limbal and lid marginal redness and eyelid marginal bacterial cultures and colony counts. RESULTS Significant improvements (p ≤ 0.05) occurred at Week 8 in symptoms, tear break-up time, staining, tear osmolarity, meibum quality and bulbar, limbal and lid margin redness for all treatments. Improvement in staining was significantly greater with Optimel 16 per cent drops (p = 0.035). Significant improvements (p < 0.05) in meibomian gland expressibility and InflammaDry occurred for both Optimel treatments. Optimel 98 per cent gel was significantly more effective in improving meibum quality (p = 0.005) and gland expressibility (p = 0.042). Total eyelid marginal bacterial colony counts reduced significantly with Optimel 16 per cent drops (p = 0.03) but not the other treatments. Staphylococcus epidermidis counts reduced significantly with Optimel 16 per cent drops (p = 0.041) and Optimel 98 per cent gel (p = 0.027). Both Optimel treatments significantly reduced the need for lubricants, with Optimel 16 per cent drops decreasing lubricant use most (p = 0.001). Temporary redness and stinging were the only adverse effects of Optimel use. CONCLUSIONS Optimel antibacterial honey treatments are effective as adjunctive therapies for meibomian gland dysfunction.
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Affiliation(s)
- Julie M Albietz
- School of Optometry and Vision Science, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Katrina L Schmid
- School of Optometry and Vision Science, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
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Cokcetin NN, Pappalardo M, Campbell LT, Brooks P, Carter DA, Blair SE, Harry EJ. The Antibacterial Activity of Australian Leptospermum Honey Correlates with Methylglyoxal Levels. PLoS One 2016; 11:e0167780. [PMID: 28030589 PMCID: PMC5193333 DOI: 10.1371/journal.pone.0167780] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 11/21/2016] [Indexed: 01/10/2023] Open
Abstract
Most commercially available therapeutic honey is derived from flowering Leptospermum scoparium (manuka) plants from New Zealand. Australia has more than 80 Leptospermum species, and limited research to date has found at least some produce honey with high non-peroxide antibacterial activity (NPA) similar to New Zealand manuka, suggesting Australia may have a ready supply of medical-grade honey. The activity of manuka honey is largely due to the presence of methylglyoxal (MGO), which is produced non-enzymatically from dihydroxyacetone (DHA) present in manuka nectar. The aims of the current study were to chemically quantify the compounds contributing to antibacterial activity in a collection of Australian Leptospermum honeys, to assess the relationship between MGO and NPA in these samples, and to determine whether NPA changes during honey storage. Eighty different Leptospermum honey samples were analysed, and therapeutically useful NPA was seen in samples derived from species including L. liversidgei and L. polygalifolium. Exceptionally high levels of up to 1100 mg/kg MGO were present in L. polygalifolium honey samples sourced from the Northern Rivers region in NSW and Byfield, QLD, with considerable diversity among samples. There was a strong positive relationship between NPA and MGO concentration, and DHA was present in all of the active honey samples, indicating a potential for ongoing conversion to MGO. NPA was stable, with most samples showing little change following seven years of storage in the dark at 4°C. This study demonstrates the potential for Australian Leptospermum honey as a wound care product, and argues for an extension of this analysis to other Leptospermum species.
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Affiliation(s)
- Nural N. Cokcetin
- The ithree institute, University of Technology Sydney, Sydney, NSW, Australia
| | - Matthew Pappalardo
- The ithree institute, University of Technology Sydney, Sydney, NSW, Australia
- University of the Sunshine Coast, Maroochydore, QLD, Australia
| | | | - Peter Brooks
- University of the Sunshine Coast, Maroochydore, QLD, Australia
| | | | - Shona E. Blair
- The ithree institute, University of Technology Sydney, Sydney, NSW, Australia
| | - Elizabeth J. Harry
- The ithree institute, University of Technology Sydney, Sydney, NSW, Australia
- * E-mail:
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Biological properties and therapeutic activities of honey in wound healing: A narrative review and meta-analysis. J Tissue Viability 2016; 25:98-118. [DOI: 10.1016/j.jtv.2015.12.002] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 10/01/2015] [Accepted: 12/09/2015] [Indexed: 01/10/2023]
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Pereira RF, Bártolo PJ. Traditional Therapies for Skin Wound Healing. Adv Wound Care (New Rochelle) 2016; 5:208-229. [PMID: 27134765 DOI: 10.1089/wound.2013.0506] [Citation(s) in RCA: 243] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Significance: The regeneration of healthy and functional skin remains a huge challenge due to its multilayer structure and the presence of different cell types within the extracellular matrix in an organized way. Despite recent advances in wound care products, traditional therapies based on natural origin compounds, such as plant extracts, honey, and larvae, are interesting alternatives. These therapies offer new possibilities for the treatment of skin diseases, enhancing the access to the healthcare, and allowing overcoming some limitations associated to the modern products and therapies, such as the high costs, the long manufacturing times, and the increase in the bacterial resistance. This article gives a general overview about the recent advances in traditional therapies for skin wound healing, focusing on the therapeutic activity, action mechanisms, and clinical trials of the most commonly used natural compounds. New insights in the combination of traditional products with modern treatments and future challenges in the field are also highlighted. Recent Advances: Natural compounds have been used in skin wound care for many years due to their therapeutic activities, including anti-inflammatory, antimicrobial, and cell-stimulating properties. The clinical efficacy of these compounds has been investigated through in vitro and in vivo trials using both animal models and humans. Besides the important progress regarding the development of novel extraction methods, purification procedures, quality control assessment, and treatment protocols, the exact mechanisms of action, side effects, and safety of these compounds need further research. Critical Issues: The repair of skin lesions is one of the most complex biological processes in humans, occurring throughout an orchestrated cascade of overlapping biochemical and cellular events. To stimulate the regeneration process and prevent the wound to fail the healing, traditional therapies and natural products have been used with promising results. Although these products are in general less expensive than the modern treatments, they can be sensitive to the geographic location and season, and exhibit batch-to-batch variation, which can lead to unexpected allergic reactions, side effects, and contradictory clinical results. Future Directions: The scientific evidence for the use of traditional therapies in wound healing indicates beneficial effects in the treatment of different lesions. However, specific challenges remain unsolved. To extend the efficacy and the usage of natural substances in wound care, multidisciplinary efforts are necessary to prove the safety of these products, investigate their side effects, and develop standard controlled trials. The development of good manufacturing practices and regulatory legislation also assume a pivotal role in order to improve the use of traditional therapies by the clinicians and to promote their integration into the national health system. Current trends move to the development of innovative wound care treatments, combining the use of traditional healing agents and modern products/practices, such as nanofibers containing silver nanoparticles, Aloe vera loaded into alginate hydrogels, propolis into dressing films, and hydrogel sheets containing honey.
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Affiliation(s)
- Rúben F. Pereira
- Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Marinha Grande, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Paulo J. Bártolo
- Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Marinha Grande, Portugal
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van Diepen ATN, van Esch S, Struijk DG, Krediet RT. The Association Between Glucose Exposure and the Risk of Peritonitis in Peritoneal Dialysis Patients. Perit Dial Int 2016; 36:533-9. [PMID: 27044793 DOI: 10.3747/pdi.2014.00318] [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: 12/10/2014] [Accepted: 10/10/2015] [Indexed: 12/20/2022] Open
Abstract
UNLABELLED ♦ BACKGROUND AND OBJECTIVE Little or no clinical evidence is available on the association between glucose exposure and peritoneal host defense in peritoneal dialysis (PD) patients. The objective of the present study was to quantify the exposure to glucose during the first year on PD and investigate the association with subsequent peritonitis. ♦ METHODS We analyzed prospectively collected demographic and peritonitis data from incident adult PD patients between 1990 and 2010. For the present study, we conducted a review of both in- and outpatient medical records of all patients to obtain their day-to-day dialysis schemes during the first year on PD. From these data, the average exposure to glucose was quantified. The exposure was stratified into low- and high-glucose groups based on the median, analyzed per standard deviation and in quartiles. Cox proportional hazard models were used to calculate crude and adjusted hazard ratios (HRs) and 95% confidence intervals for the association between glucose exposure and peritonitis. Adjustments were made for age, sex, primary kidney disease, diabetes mellitus, Davies comorbidity score and the treatment period. ♦ RESULTS In total, 230 patients were included in the study of whom 151 (66%) experienced a first peritonitis episode. The median follow-up time was 2.6 years (interquartile range [IQR]: 1.9 - 3.8) in the low-glucose group and 3.1 (IQR: 2.1 - 4.2) in the high-glucose group. After adjustment for confounding factors, no association between high glucose exposure and the risk of peritonitis was found (HR: 0.81; 0.55 - 1.17). No association was present when glucose exposure was analyzed per standard deviation (SD) (HR: 0.98; 0.79 - 1.21) or patient quartiles were applied. No association was identified between glucose exposure and severe peritonitis, Staphylococcus aureus peritonitis, or a peritonitis episode that lasted more than 14 days. ♦ CONCLUSIONS Exposure to glucose is not associated with an increased risk of peritonitis. The equilibrium between glycemic harm to peritoneal host defense and detrimental effects of glucose on invading microorganisms may determine the susceptibility to peritoneal infection.
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Affiliation(s)
- Anouk T N van Diepen
- Division of Nephrology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Sadie van Esch
- St. Elisabeth Hospital, Department of Nephrology and Internal Medicine, Tilburg, The Netherlands
| | - Dirk G Struijk
- Division of Nephrology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands Dianet, Amsterdam-Utrecht, The Netherlands
| | - Raymond T Krediet
- Division of Nephrology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Henatsch D, Wesseling F, Kross KW, Stokroos RJ. Honey and beehive products in otorhinolaryngology: a narrative review. Clin Otolaryngol 2016; 41:519-31. [PMID: 26453201 DOI: 10.1111/coa.12557] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Honey and beehive products were rediscovered as an alternative treatment in wounds. The medicinal properties also raised interest of their use in Otorhinolaryngology. OBJECTIVE OF REVIEW To give an overview of the effectiveness of beehive products in Otorhinolaryngology. TYPE OF REVIEW Narrative. SEARCH STRATEGY AND EVALUATION A literature search of the databases PubMed, EMBASE and Cochrane was performed from the last two decades till December 2014. The search terms 'honey', 'propolis' or 'royal jelly' were used. Articles, which evaluated the effectiveness of beehive products in Otorhinolaryngology, were included. The quality assessment of included studies was performed using the Cochrane Collaboration's risk of bias tool. DISCUSSION AND CONCLUSION A total of 36 studies were identified and evaluated. Eighteen studies investigated their effect in oral infections, seven in infection of the respiratory tract, six in rhino-sinusal diseases, four investigated the use in tonsillectomy and head and neck surgery and one study explored the preventive effect in otitis media. Honey can be considered as effective (additional) treatment in mucositis, childhood cough, persistent post-infectious cough and after tonsillectomy. Propolis may have a role in the treatment of (aphthous) stomatitis, mouth ulcer and prevention of acute otitis media. Royal jelly showed to reduce mucositis. In the presented studies, beehive products proved to be safe, with only minor adverse reactions. Studies showed to be diverse and had some methodological limitations.
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Affiliation(s)
- D Henatsch
- Department of Otorhinolaryngology - Head and Neck Surgery, Maastricht University Medical Center (MUMC), Maastricht, the Netherlands.
| | - F Wesseling
- Department of Otorhinolaryngology - Head and Neck Surgery, Maastricht University Medical Center (MUMC), Maastricht, the Netherlands
| | - K W Kross
- Department of Otorhinolaryngology - Head and Neck Surgery, Maastricht University Medical Center (MUMC), Maastricht, the Netherlands
| | - R J Stokroos
- Department of Otorhinolaryngology - Head and Neck Surgery, Maastricht University Medical Center (MUMC), Maastricht, the Netherlands
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Tonda-Turo C, Ruini F, Argentati M, Di Girolamo N, Robino P, Nebbia P, Ciardelli G. Porous CS based membranes with improved antimicrobial properties for the treatment of infected wound in veterinary applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 60:416-426. [PMID: 26706548 DOI: 10.1016/j.msec.2015.11.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/15/2015] [Accepted: 11/23/2015] [Indexed: 11/28/2022]
Abstract
Recently, much attention has been given to the use of innovative solution for the treatment of infected wounds in animals. Current applied treatments are often un-effective leading to infection propagation and animal death. Novel engineered membranes based on chitosan (CS) can be prepared to combine local antimicrobial effect, high flexibility and easy manipulation. In this work, CS crosslinked porous membranes with improved antimicrobial properties were prepared via freeze-drying technique to promote wound healing and to reduce the bacterial proliferation in infected injuries. Silver nanoparticles (AgNPs) and gentamicin sulfate (GS) were incorporated into the CS matrices to impart antibacterial properties on a wild range of strains. CS based porous membranes were tested for their physicochemical, thermal, mechanical as well as swelling and degradation behavior at physiological condition. Additionally, GS release profile was investigated, showing a moderate burst effect in the first days followed by a decreasing release rate which it was maintained for at least 56 days. Moreover, porous membranes loaded with GS or AgNPs showed good bactericidal activity against both of Gram-positive and Gram-negative bacteria. The bacterial strains used in this work were collected in chelonians after carapace injuries to better mimic the environment after trauma.
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Affiliation(s)
- C Tonda-Turo
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.
| | - F Ruini
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
| | - M Argentati
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy; Clinic for Exotic Animals, CVS, Via Sandro Giovannini 53, 00137 Rome, Italy
| | - N Di Girolamo
- Clinic for Exotic Animals, CVS, Via Sandro Giovannini 53, 00137 Rome, Italy
| | - P Robino
- Department of Veterinary Sciences, University of Turin, Largo Braccini 2, 10095 Grugliasco, Turin, Italy
| | - P Nebbia
- Department of Veterinary Sciences, University of Turin, Largo Braccini 2, 10095 Grugliasco, Turin, Italy
| | - G Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
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Mahmoodi-Khaledi E, Kashef N, Habibi-Rezaei M, Moosavi-Movahedi AA. In vitro characterization of antibacterial potential of Iranian honey samples against wound bacteria. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2464-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Abstract
Honey has been widely accepted as food and medicine by all generations, traditions, and civilizations, both ancient and modern. For at least 2700 years, honey has been used by humans to treat a variety of ailments through topical application, but only recently have the antiseptic and antimicrobial properties of honey been discovered. Honey has been reported to be effective in a number of human pathologies. Clinical studies have demonstrated that application of honey to severely infected cutaneous wounds rapidly clears infection from the wound and improves tissue healing. A large number of in vitro and limited clinical studies have confirmed the broad-spectrum antimicrobial (antibacterial, antifungal, antiviral, and antimycobacterial) properties of honey, which may be attributed to the acidity (low pH), osmotic effect, high sugar concentration, presence of bacteriostatic and bactericidal factors (hydrogen peroxide, antioxidants, lysozyme, polyphenols, phenolic acids, flavonoids, methylglyoxal, and bee peptides), and increase in cytokine release, and to immune modulating and anti-inflammatory properties of honey; the antimicrobial action involves several mechanisms. Despite a large amount of data confirming the antimicrobial activity of honey, there are no studies that support the systemic use of honey as an antibacterial agent.
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Jantakee K, Tragoolpua Y. Activities of different types of Thai honey on pathogenic bacteria causing skin diseases, tyrosinase enzyme and generating free radicals. Biol Res 2015; 48:4. [PMID: 25654191 PMCID: PMC4417269 DOI: 10.1186/0717-6287-48-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Accepted: 01/07/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Honey is a natural product obtained from the nectar that is collected from flowers by bees. It has several properties, including those of being food and supplementary diet, and it can be used in cosmetic products. Honey imparts pharmaceutical properties since it has antibacterial and antioxidant activities. The antibacterial and antioxidant activities of Thai honey were investigated in this study. RESULTS The honey from longan flower (source No. 1) gave the highest activity on MRSA when compared to the other types of honey, with a minimum inhibitory concentration of 12.5% (v/v) and minimum bactericidal concentration of 25% (v/v). Moreover, it was found that MRSA isolate 49 and S. aureus were completely inhibited by the 50% (v/v) longan honey (source No. 1) at 8 and 20 hours of treatment, respectively. Furthermore, it was observed that the honey from coffee pollen (source No. 4) showed the highest phenolic and flavonoid compounds by 734.76 mg gallic/kg of honey and 178.31 mg quercetin/kg of honey, respectively. The antioxidant activity of the honey obtained from coffee pollen was also found to be the highest, when investigated using FRAP and DPPH assay, with 1781.77 mg FeSO4•7H2O/kg of honey and 86.20 mg gallic/kg of honey, respectively. Additionally, inhibition of tyrosinase enzyme was found that honey from coffee flower showed highest inhibition by 63.46%. CONCLUSIONS Honey demonstrates tremendous potential as a useful source that provides anti-free radicals, anti-tyrosinase and anti-bacterial activity against pathogenic bacteria causing skin diseases.
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Affiliation(s)
- Kanyaluck Jantakee
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Yingmanee Tragoolpua
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Hayashi K, Fukushima A, Hayashi-Nishino M, Nishino K. Effect of methylglyoxal on multidrug-resistant Pseudomonas aeruginosa. Front Microbiol 2014; 5:180. [PMID: 24860556 PMCID: PMC4029012 DOI: 10.3389/fmicb.2014.00180] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 04/01/2014] [Indexed: 01/06/2023] Open
Abstract
Honey has a complex chemistry, and its broad-spectrum antimicrobial activity varies with floral source, climate, and harvesting conditions. Methylglyoxal was identified as the dominant antibacterial component of manuka honey. Although it has been known that methylglyoxal has antibacterial activity against gram-positive bacteria, including methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus, there is not much information describing its activity against gram-negative bacteria. In this study, we report the effect of methylglyoxal against multidrug-resistant Pseudomonas aeruginosa (MDRP) using 53 clinically isolated strains. We also assessed the effect of deleting the five multidrug efflux systems in P. aeruginosa, as well as the efflux systems in Escherichia coli and Salmonella enterica serovar Typhimurium, on MICs of methylglyoxal. Our results indicate that methylglyoxal inhibits the growth of MDRP at concentrations of 128-512 μg/ml (1.7-7.1 mM) and is not recognized by drug efflux systems.
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Affiliation(s)
- Katsuhiko Hayashi
- Laboratory of Microbiology and Infectious Diseases, Division of Special Projects, Institute of Scientific and Industrial Research, Osaka University Ibaraki, Osaka, Japan ; Graduate School of Pharmaceutical Sciences, Osaka University Suita, Japan
| | - Aiko Fukushima
- Laboratory of Microbiology and Infectious Diseases, Division of Special Projects, Institute of Scientific and Industrial Research, Osaka University Ibaraki, Osaka, Japan
| | - Mitsuko Hayashi-Nishino
- Laboratory of Microbiology and Infectious Diseases, Division of Special Projects, Institute of Scientific and Industrial Research, Osaka University Ibaraki, Osaka, Japan
| | - Kunihiko Nishino
- Laboratory of Microbiology and Infectious Diseases, Division of Special Projects, Institute of Scientific and Industrial Research, Osaka University Ibaraki, Osaka, Japan
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Johnson DW, Badve SV, Pascoe EM, Beller E, Cass A, Clark C, de Zoysa J, Isbel NM, McTaggart S, Morrish AT, Playford EG, Scaria A, Snelling P, Vergara LA, Hawley CM. Antibacterial honey for the prevention of peritoneal-dialysis-related infections (HONEYPOT): a randomised trial. THE LANCET. INFECTIOUS DISEASES 2013; 14:23-30. [PMID: 24119840 DOI: 10.1016/s1473-3099(13)70258-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND There is a paucity of evidence to guide the best strategy for prevention of peritoneal-dialysis-related infections. Antibacterial honey has shown promise as a novel, cheap, effective, topical prophylactic agent without inducing microbial resistance. We therefore assessed whether daily application of honey at the exit site would increase the time to peritoneal-dialysis-related infections compared with standard exit-site care plus intranasal mupirocin prophylaxis for nasal carriers of Staphylococcus aureus. METHODS In this open-label trial undertaken in 26 centres in Australia and New Zealand, participants undergoing peritoneal dialysis were randomly assigned in a 1:1 ratio with an adaptive allocation algorithm to daily topical exit-site application of antibacterial honey plus standard exit-site care or intranasal mupirocin prophylaxis (only in carriers of nasal S aureus) plus standard exit-site care (control group). The primary endpoint was time to first infection related to peritoneal dialysis (exit-site infection, tunnel infection, or peritonitis). The trial is registered with the Australian New Zealand Clinical Trials Registry, number 12607000537459. FINDINGS Of 371 participants, 186 were assigned to the honey group and 185 to the control group. The median peritoneal-dialysis-related infection-free survival times were not significantly different in the honey (16·0 months [IQR not estimable]) and control groups (17·7 months [not estimable]; unadjusted hazard ratio 1·12, 95% CI 0·83-1·51; p=0·47). In the subgroup analyses, honey increased the risks of both the primary endpoint (1·85, 1·05-3·24; p=0·03) and peritonitis (2·25, 1·16-4·36) in participants with diabetes. The incidences of serious adverse events (298 vs 327, respectively; p=0·1) and deaths (14 vs 18, respectively; p=0·9) were not significantly different in the honey and control groups. 11 (6%) participants in the honey group had local skin reactions. INTERPRETATION The findings of this trial show that honey cannot be recommended routinely for the prevention of peritoneal-dialysis-related infections. FUNDING Baxter Healthcare, Queensland Government, Comvita, and Gambro.
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Affiliation(s)
- David W Johnson
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Nephrology, Princess Alexandra Hospital, Brisbane, QLD, Australia; Translational Research Institute, Brisbane, QLD, Australia.
| | - Sunil V Badve
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Nephrology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Elaine M Pascoe
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia
| | - Elaine Beller
- Centre for Research in Evidence-Based Practice, Bond University, Gold Coast, QLD, Australia
| | - Alan Cass
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Menzies School of Health Research, Darwin, NT, Australia
| | - Carolyn Clark
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Nephrology, Nambour Hospital, Nambour, QLD, Australia
| | - Janak de Zoysa
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Renal Medicine, North Shore Hospital, Auckland, New Zealand
| | - Nicole M Isbel
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Nephrology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Steven McTaggart
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Child and Adolescent Renal Service, Royal Children's and Mater Children's Hospitals, Brisbane, QLD, Australia
| | - Alicia T Morrish
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia
| | - E Geoffrey Playford
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Infection Management Services, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Anish Scaria
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia
| | - Paul Snelling
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Nephrology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Liza A Vergara
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia
| | - Carmel M Hawley
- Australasian Kidney Trials Network, University of Queensland, Brisbane, QLD, Australia; Department of Nephrology, Princess Alexandra Hospital, Brisbane, QLD, Australia
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AL-Waili N, Al Ghamdi A, Ansari MJ, Al-Attal Y, Al-Mubarak A, Salom K. Differences in composition of honey samples and their impact on the antimicrobial activities against drug multiresistant bacteria and pathogenic fungi. Arch Med Res 2013; 44:307-16. [PMID: 23684665 DOI: 10.1016/j.arcmed.2013.04.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 04/08/2013] [Indexed: 01/22/2023]
Abstract
BACKGROUND AN AIMS Antibiotic multiresistant microbes represent a challenging problem. Because honey has a potent antibacterial property, the antimicrobial effects of different honey samples against multiresistant pathogens and their compositions were investigated. METHODS Five honey samples were used: Talah, Dhahian, Sumra-1, Sidr, and Sumra-2. Samples were analyzed to determine chemical composition such as fructose, glucose, sucrose, pH, total flavonoids, total phenolics, hydrogen peroxide concentration, minerals and trace elements. Antimicrobial activities of the samples against 17 (16 were multiresistant) human pathogenic bacteria and three types of fungi were studied. Specimens of the isolates were cultured into 10 mL of 10-100% (volume/volume) honey diluted in broth. Microbial growth was assessed on a solid plate media after 24 h and 72 h incubation. RESULTS The composition of honey samples varied considerably. Sumra 1 and 2 contained the highest level of flavonoids and phenolics and the lowest level of hydrogen peroxide, whereas Dhahian honey contained the highest level of hydrogen peroxide. Sixteen pathogens were antibiotic multiresistant. A single dose of each honey sample inhibited all the pathogens tested after 24 h and 72 h incubation. The most sensitive pathogens were Aspergillus nidulans, Salmonella typhimurum and Staphylococcus epidermidis (S. epidermidis). Although there was no statistically significant difference in the effectiveness of honey samples, the most effective honey against bacteria was Talah and against fungi were Dhahian and Sumra-2. CONCLUSIONS Various honey samples collected from different geographical areas and plant origins showed almost similar antimicrobial activities against multiresistant pathogens despite considerable variation in their composition. Honey may represent an alternative candidate to be tested as part of management of drug multiresistant pathogens.
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Bisignano C, Esposito E, Filocamo A, Impellizeri D, Di Paola R, Mandalari G, Cuzzocrea S. Effect of Almond Skins on a Lung Injury Model Elicited by Multirug-Resistant Pseudomonas Aeruginosa. EUR J INFLAMM 2013. [DOI: 10.1177/1721727x1301100220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- C. Bisignano
- Department of Drug Science and Health Products, University of Messina, Messina, Italy
| | - E. Esposito
- Department of Biological and Environmental Sciences, University of Messina, Messina, Italy
| | - A. Filocamo
- Department of Drug Science and Health Products, University of Messina, Messina, Italy
| | - D. Impellizeri
- Department of Biological and Environmental Sciences, University of Messina, Messina, Italy
| | - R. Di Paola
- Department of Biological and Environmental Sciences, University of Messina, Messina, Italy
| | - G. Mandalari
- Department of Drug Science and Health Products, University of Messina, Messina, Italy
- Model Gut Platform, Institute of Food Research, Norwich Research Park, Norwich, UK
| | - S. Cuzzocrea
- Department of Biological and Environmental Sciences, University of Messina, Messina, Italy
- Department of Surgery, University of Manchester, Manchester, UK
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Lu J, Carter DA, Turnbull L, Rosendale D, Hedderley D, Stephens J, Gannabathula S, Steinhorn G, Schlothauer RC, Whitchurch CB, Harry EJ. The effect of New Zealand kanuka, manuka and clover honeys on bacterial growth dynamics and cellular morphology varies according to the species. PLoS One 2013; 8:e55898. [PMID: 23418472 PMCID: PMC3572166 DOI: 10.1371/journal.pone.0055898] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 01/04/2013] [Indexed: 11/26/2022] Open
Abstract
Treatment of chronic wounds is becoming increasingly difficult due to antibiotic resistance. Complex natural products with antimicrobial activity, such as honey, are now under the spotlight as alternative treatments to antibiotics. Several studies have shown honey to have broad-spectrum antibacterial activity at concentrations present in honey dressings, and resistance to honey has not been attainable in the laboratory. However not all honeys are the same and few studies have used honey that is well defined both in geographic and chemical terms. Here we have used a range of concentrations of clover honey and a suite of manuka and kanuka honeys from known geographical locations, and for which the floral source and concentration of methylglyoxal and hydrogen peroxide potential were defined, to determine their effect on growth and cellular morphology of four bacteria: Bacillus subtilis, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. While the general trend in effectiveness of growth inhibition was manuka>manuka-kanuka blend>kanuka>clover, the honeys had varying and diverse effects on the growth and cellular morphology of each bacterium, and each organism had a unique response profile to these honeys. P. aeruginosa showed a markedly different pattern of growth inhibition to the other three organisms when treated with sub-inhibitory concentrations of honey, being equally sensitive to all honeys, including clover, and the least sensitive to honey overall. While hydrogen peroxide potential contributed to the antibacterial activity of the manuka and kanuka honeys, it was never essential for complete growth inhibition. Cell morphology analysis also showed a varied and diverse set of responses to the honeys that included cell length changes, cell lysis, and alterations to DNA appearance. These changes are likely to reflect the different regulatory circuits of the organisms that are activated by the stress of honey treatment.
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Affiliation(s)
- Jing Lu
- The ithree institute, University of Technology Sydney, Sydney, Australia
| | - Dee A. Carter
- School of Molecular Bioscience, University of Sydney, Sydney, Australia
| | - Lynne Turnbull
- The ithree institute, University of Technology Sydney, Sydney, Australia
| | - Douglas Rosendale
- The New Zealand Institute for Plant and Food Research Ltd., Food Industry Science Centre, Palmerston North, New Zealand
| | - Duncan Hedderley
- The New Zealand Institute for Plant and Food Research Ltd., Food Industry Science Centre, Palmerston North, New Zealand
| | | | - Swapna Gannabathula
- Department of Molecular Medicine & Pathology, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag, Auckland, New Zealand
| | | | | | | | - Elizabeth J. Harry
- The ithree institute, University of Technology Sydney, Sydney, Australia
- * E-mail:
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Brudzynski K, Abubaker K, Miotto D. Unraveling a mechanism of honey antibacterial action: Polyphenol/H2O2-induced oxidative effect on bacterial cell growth and on DNA degradation. Food Chem 2012; 133:329-36. [DOI: 10.1016/j.foodchem.2012.01.035] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 11/18/2011] [Accepted: 01/16/2012] [Indexed: 01/22/2023]
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Biglari B, Moghaddam A, Santos K, Blaser G, Büchler A, Jansen G, Längler A, Graf N, Weiler U, Licht V, Strölin A, Keck B, Lauf V, Bode U, Swing T, Hanano R, Schwarz NT, Simon A. Multicentre prospective observational study on professional wound care using honey (Medihoney™). Int Wound J 2012; 10:252-9. [PMID: 22494449 DOI: 10.1111/j.1742-481x.2012.00970.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
In recent years, the treatment of wounds with honey has received an increasing amount of attention from healthcare professionals in Germany and Austria. We conducted a prospective observational multicentre study using Medihoney™ dressings in 10 hospitals - nine in Germany and one in Austria. Wound-associated parameters were monitored systematically at least three times in all patients. Data derived from the treatment of 121 wounds of various aetiologies over a period of 2 years were analysed. Almost half of the patients were younger than 18 years old, and 32% of the study population was oncology patients. Overall, wound size decreased significantly during the study period and many wounds healed after relatively short time periods. Similarly, perceived pain levels decreased significantly, and the wounds showed noticeably less slough/necrosis. In general, our findings show honey to be an effective and feasible treatment option for professional wound care. In addition, our study showed a relationship between pain and slough/necrosis at the time of recruitment and during wound healing. Future comparative trials are still needed to evaluate the extent to which the positive observations made in this and other studies can definitely be attributed to the effects of honey in wound care.
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Affiliation(s)
- Bahram Biglari
- Department of Paraplegia and Technical Orthopaedics, Insurance Association Trauma Centre, 67071 Ludwigshafen, Germany.
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Topical honey: for bears, not for ICU catheters? Crit Care 2012; 17:103. [PMID: 23320929 PMCID: PMC4056028 DOI: 10.1186/cc11900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Catheters are most often colonized and become infected via the skin and their external surfaces in the ICU. Therefore, topical antimicrobials, including medical honey, placed at the insertion site should decrease skin colonization and catheter infections. This commentary reviews the main studies on, and the possible reasons of, topical antimicrobial failure in ICUs compared to the reported efficacy of chlorhexidine-impregnated dressings.
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Abdelmalek M, Moussa A, Noureddine D, Saad A. Antibacterial activity of honey alone and in combination with Nigella sativa seeds against Pseudomonas aeruginosa infection. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2012. [DOI: 10.1016/s2222-1808(12)60197-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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48
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Kwakman PHS, Zaat SAJ. Antibacterial components of honey. IUBMB Life 2011; 64:48-55. [PMID: 22095907 DOI: 10.1002/iub.578] [Citation(s) in RCA: 213] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2011] [Accepted: 08/22/2011] [Indexed: 12/17/2022]
Abstract
The antibacterial activity of honey has been known since the 19th century. Recently, the potent activity of honey against antibiotic-resistant bacteria has further increased the interest for application of honey, but incomplete knowledge of the antibacterial activity is a major obstacle for clinical applicability. The high sugar concentration, hydrogen peroxide, and the low pH are well-known antibacterial factors in honey and more recently, methylglyoxal and the antimicrobial peptide bee defensin-1 were identified as important antibacterial compounds in honey. The antibacterial activity of honey is highly complex due to the involvement of multiple compounds and due to the large variation in the concentrations of these compounds among honeys. The current review will elaborate on the antibacterial compounds in honey. We discuss the activity of the individual compounds, their contribution to the complex antibacterial activity of honey, a novel approach to identify additional honey antibacterial compounds, and the implications of the novel developments for standardization of honey for medical applications.
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Affiliation(s)
- Paulus H S Kwakman
- Department of Medical Microbiology, Center for Infection and Immunity Amsterdam, Academic Medical Center, 1105 AZ Amsterdam, The Netherlands
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