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Xu L, Wang X, Wu Y, Zhang Z, Li X, Zhang J. Effectiveness of APG and Honey Gauze in Pressure Injury of Elderly: A Randomized Control Trial. INT J LOW EXTR WOUND 2024:15347346241234420. [PMID: 38403980 DOI: 10.1177/15347346241234420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
This study was designed to evaluate the efficiency of the combination of autologous platelet-rich plasma gel (APG) and Manuka honey gauze in the treatment of Stages 3-4 pressure injury of older adults. Patients were divided into four groups: Manuka honey gauze and APG (M + A), Manuka honey gauze (M), APG (A), and a control group (C). Different treatments were given, then wound bed coverage with granulation tissue, wound size reduction, and Pressure Ulcer Scale for Healing (PUSH) score were examined. Paraffin-embedded sections of wound tissues were analyzed and wound swab cultures were assessed. Kruskal-Wallis test and Mann-Whitney U test were performed in statistical analysis at a 5% significance level. A total of 42 patients were accepted. Significant increase of wound bed coverage with granulation tissue (51.24%, P = .004, Kruskal-Wallis test) and decrease of PUSH score (-5) were observed in the M + A group at the end of the observation (P = .032, Mann-Whitney U test). The hematoxylin-eosin staining of wound tissues showed that typical squamous epithelium was seen in wound bed of patient in M + A group. Manuka honey gauze and APG were proved to be superior treatments for pressure injury of old patient. Increase of granulation tissue coverage, reduction of PUSH score, and improved growth of epithelium were observed in M + A group. There was no side-effect, and the treatment would not cause infection.
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Affiliation(s)
- Lulu Xu
- Department of Geriatrics, Chongqing Clinical Research Center for Geriatric Diseases, Chongqing General Hospital, Chongqing, China
| | - Xinmeng Wang
- Chinese Academy of Sciences, Chongqing Medical University & Chongqing Institute of Green and Intelligent Technology, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
| | - Yongmei Wu
- Department of Geriatrics, Chongqing Clinical Research Center for Geriatric Diseases, Chongqing General Hospital, Chongqing, China
| | - Zhen Zhang
- Department of Clinical Laboratory, Chongqing General Hospital, Chongqing, China
| | - Xiafei Li
- Department of Geriatrics, Chongqing Clinical Research Center for Geriatric Diseases, Chongqing General Hospital, Chongqing, China
| | - Jie Zhang
- Department of Geriatrics, Chongqing Clinical Research Center for Geriatric Diseases, Chongqing General Hospital, Chongqing, China
- Graduate School, Chongqing Medical University, Chongqing, China
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Udduttula A, Jakubovics N, Khan I, Pontiroli L, Rankin KS, Gentile P, Ferreira AM. Layer-by-Layer Coatings of Collagen-Hyaluronic acid Loaded with an Antibacterial Manuka Honey Bioactive Compound to Fight Metallic Implant Infections. ACS APPLIED MATERIALS & INTERFACES 2023; 15:58119-58135. [PMID: 38055248 PMCID: PMC10739588 DOI: 10.1021/acsami.3c11910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 12/07/2023]
Abstract
Implant-associated severe infections can result in catastrophic implant failures; thus, advanced antibacterial coatings are needed to combat infections. This study focuses on harnessing nature-inspired self-assembly of extracellular matrix (ECM)-like coatings on Ti alloy with a combination of jellyfish-derived collagen (J-COLL) and hyaluronic acid (HA) using our customized automated hybrid layer-by-layer apparatus. To improve the anti-infection efficacy of coatings, we have incorporated a natural antibacterial agent methylglyoxal (MGO, a Manuka honey compound) in optimized multilayer coatings. The obtainment of MGO-loaded multilayer coatings was successfully assessed by profilometry, contact angle, attenuated total reflectance (ATR)-Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. In vitro degradation confirmed the controlled release activity of MGO with a range of concentrations from 0.90 to 2.38 mM up to 21 days. A bacterial cell culture study using Escherichia coli (E. coli) and Staphylococcus epidermidis (S. epidermidis) confirmed that the MGO incorporated within layers 7 and 9 had a favorable effect on preventing bacterial growth and colonization on their surfaces. An in vitro cytocompatibility study confirmed that MGO agents included in the layers did not affect or reduce the cellular functionalities of L929 fibroblasts. In addition, MGO-loaded layers with Immortalized Mesenchymal Stem Cells (Y201 TERT-hMSCs) were found to favor the growth and differentiation of Y201 cells and promote calcium nodule formation. Overall, these surface coatings are promising candidates for delivering antimicrobial activity with bone-inducing functions for future bone tissue engineering applications.
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Affiliation(s)
- Anjaneyulu Udduttula
- School
of Engineering, Newcastle University, Newcastle Upon Tyne NE1
7RU, U.K.
- Centre
of Biomaterials, Cellular & Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore, TN 632014, India
| | - Nicholas Jakubovics
- School
of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle
Upon Tyne NE1 7RU, U.K.
| | - Imran Khan
- Biomet
UK Healthcare Ltd, Stella Building, Windmill Hill Business Park, Swindon SN5 6NX, U.K.
| | - Lucia Pontiroli
- Biomet
UK Healthcare Ltd, Stella Building, Windmill Hill Business Park, Swindon SN5 6NX, U.K.
| | - Kenneth S. Rankin
- Translational
and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, U.K.
| | - Piergiorgio Gentile
- School
of Engineering, Newcastle University, Newcastle Upon Tyne NE1
7RU, U.K.
| | - Ana M. Ferreira
- School
of Engineering, Newcastle University, Newcastle Upon Tyne NE1
7RU, U.K.
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3
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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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Choudhary P, Tushir S, Bala M, Sharma S, Sangha MK, Rani H, Yewle NR, Kumar P, Singla D, Chandran D, Kumar M, Mekhemar M. Exploring the Potential of Bee-Derived Antioxidants for Maintaining Oral Hygiene and Dental Health: A Comprehensive Review. Antioxidants (Basel) 2023; 12:1452. [PMID: 37507990 PMCID: PMC10375990 DOI: 10.3390/antiox12071452] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Honey bee products comprise various compounds, including honey, propolis, royal jelly, bee pollen, bee wax and bee venom, which have long been recognized for their pharmacological and health-promoting benefits. Scientists have discovered that periodontal disorders stem from dental biofilm, an inflammatory response to bacterial overgrowth produced by dysbiosis in the oral microbiome. The bee products have been investigated for their role in prevention of oral diseases, which are attributed to a myriad of biologically active compounds including flavonoids (pinocembrin, catechin, caffeic acid phenethyl ester (CAPE) and galangin), phenolic acids (hydroxybenzoic acid, hydroxycinnamic acid, p-coumaric, ellagic, caffeic and ferulic acids) and terpenoids. This review aims to update the current understanding of role of selected bee products, namely, honey, propolis and royal jelly, in preventing oral diseases as well as their potential biological activities and mechanism of action in relation to oral health have been discussed. Furthermore, the safety of incorporation of bee products is also critically discussed. To summarize, bee products could potentially serve as a therapy option for people suffering from a variety of oral disorders.
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Affiliation(s)
- Poonam Choudhary
- Department of Agricultural Structures and Environment Control, ICAR-Central Institute of Post-Harvest Engineering and Technology, Ludhiana 141004, India
| | - Surya Tushir
- Department of Agricultural Structures and Environment Control, ICAR-Central Institute of Post-Harvest Engineering and Technology, Ludhiana 141004, India
| | - Manju Bala
- Department of Food Grain and Oilseed Processing, ICAR-Central Institute of Post-Harvest Engineering and Technology, Ludhiana 141004, India
| | - Sanjula Sharma
- Oilseeds Section, Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana 141004, India
| | - Manjeet Kaur Sangha
- Department of Biochemistry, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana 141004, India
| | - Heena Rani
- Department of Biochemistry, Punjab Agricultural University, Ludhiana 141004, India
| | | | - Parminder Kumar
- Department of Soil Science, Punjab Agricultural University, Ludhiana 141004, India
| | - Diksha Singla
- Department of Biochemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Deepak Chandran
- Department of Animal Husbandry, Government of Kerala, Palakkad 679335, India
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai 400019, India
| | - Mohamed Mekhemar
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian-Albrecht's University, 24105 Kiel, Germany
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Łyskowski A, Miłek M, Dżugan M. Assessing the Antimicrobial Properties of Honey Protein Components through In Silico Comparative Peptide Composition and Distribution Analysis. Antibiotics (Basel) 2023; 12:antibiotics12050830. [PMID: 37237732 DOI: 10.3390/antibiotics12050830] [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: 03/30/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
The availability of reference proteomes for two honeybee species (Apis mellifera and Apis cerana cerana) opens the possibility of in silico studies of diverse properties of the selected protein fractions. The antimicrobial activity of honey is well established and related to its composition, including protein components. We have performed a comparative study on a selected fraction of the honey-related proteins, as well as other bee-secreted proteins, utilizing a publicly available database of established and verified peptides with antimicrobial properties. Using a high-performance sequence aligner (diamond), protein components with antimicrobial peptide sequences were identified and analyzed. The identified peptides were mapped on the available bee proteome sequences, as well as on model structures provided by the AlphaFold project. The results indicate a highly conserved localization of the identified sequences within a limited number of the protein components. Putative antimicrobial fragments also show high sequence-based similarity to the multiple peptides contained in the reference databases. For the 2 databases used, the lowest calculated percentage of similarity ranged from 30.1% to 32.9%, with a respective average of 88.5% and 79.3% for the Apis mellifera proteome. It was revealed that the antimicrobial peptides (AMPs) site is a single, well-defined domain with potentially conserved structural features. In the case of the examples studied in detail, the structural domain takes the form of the two β-sheets, stabilized by α-helices in one case, and a six-β-sheet-only domain localized in the C-terminal part of the sequence, respectively. Moreover, no significant differences were found in the composition of the antibacterial fraction of peptides that were identified in the proteomes of both species.
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Affiliation(s)
- Andrzej Łyskowski
- Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland
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6
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Romário-Silva D, Alencar SM, Bueno-Silva B, Sardi JDCO, Franchin M, de Carvalho RDP, Ferreira TEDSA, Rosalen PL. Antimicrobial Activity of Honey against Oral Microorganisms: Current Reality, Methodological Challenges and Solutions. Microorganisms 2022; 10:microorganisms10122325. [PMID: 36557578 PMCID: PMC9781356 DOI: 10.3390/microorganisms10122325] [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: 09/30/2022] [Revised: 11/10/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Honey has been shown to have antimicrobial activity against different microorganisms, but its effects on oral biofilms are largely unknown. In this review, we analyzed the currently available literature on the antimicrobial activity of honey against oral biofilms in order to determine its potential as a functional food in the treatment and/or prevention of oral diseases. Here, we compare studies reporting on the antimicrobial activity of honey against systemic and oral bacteria, discuss methodological strategies, and point out current gaps in the literature. To date, there are no consistent studies supporting the use of honey as a therapy for oral diseases of bacterial origin, but current evidence in the field is promising. The lack of studies examining the antibiofilm activity of honey against oral microorganisms reveals a need for additional research to better define aspects such as chemical composition, the mechanism(s) of action, and antimicrobial action.
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Affiliation(s)
- Diego Romário-Silva
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
- Research Program in Integrated Dental Sciences, University of Cuiabá, Cuiabá 78065-900, Brazil
| | - Severino Matias Alencar
- Department of Agri-Food Industry, Food and Nutrition, Luiz de Queiroz College of Agriculture (Escola Superior de Agricultura “Luiz de Queiroz”—ESALQ), University of São Paulo, Piracicaba 13418-900, Brazil
| | - Bruno Bueno-Silva
- Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil
| | - Janaína de Cássia Orlandi Sardi
- Research Program in Integrated Dental Sciences, University of Cuiabá, Cuiabá 78065-900, Brazil
- Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil
| | - Marcelo Franchin
- School of Dentistry, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, Brazil
- Correspondence: (M.F.); (P.L.R.)
| | | | - Thayná Ellen de Sousa Alves Ferreira
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
- Research Program in Integrated Dental Sciences, University of Cuiabá, Cuiabá 78065-900, Brazil
| | - Pedro Luiz Rosalen
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
- Biological Sciences Graduate Program, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, Brazil
- Correspondence: (M.F.); (P.L.R.)
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7
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Nolan VC, Harrison J, Cox JA. Manuka honey in combination with azithromycin shows potential for improved activity against Mycobacterium abscessus. Cell Surf 2022; 8:100090. [DOI: 10.1016/j.tcsw.2022.100090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 11/18/2022] Open
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8
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Fernandes KE, Frost EA, Remnant EJ, Schell KR, Cokcetin NN, Carter DA. The role of honey in the ecology of the hive: Nutrition, detoxification, longevity, and protection against hive pathogens. Front Nutr 2022; 9:954170. [PMID: 35958247 PMCID: PMC9359632 DOI: 10.3389/fnut.2022.954170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Honey is the source of energy for the European honey bee, Apis mellifera. Beyond simple nutrition and a hedge against the seasonal, geographic, and chemical unpredictability of nectar, honey has properties that protect the hive against various stresses. Enzyme-mediated detoxification during honey ripening neutralizes potentially toxic phytochemicals, and bees that consume honey have enhanced tolerance to other ingested toxins. Catalase and antioxidant phenolics protect honey bees from oxidative damage caused by reactive oxygen species, promoting their longevity. Phytochemical components of honey and microRNAs have the potential to influence developmental pathways, with diet playing a large role in honey bee caste determination. Components of honey mediate stress response and promote cold tolerance during overwintering. Honey has a suite of antimicrobial mechanisms including osmotic pressure, low water activity, low pH, hydrogen peroxide, and plant-, honey bee-, and microbiota-derived compounds such as phytochemicals and antimicrobial peptides. Certain types of honey, particularly polyfloral honeys, have been shown to inhibit important honey bee pathogens including the bacteria responsible for American and European Foulbrood, the microsporidian Nosema ceranae, and the fungi responsible for Stonebrood. Understanding the diverse functional properties of honey has far-ranging implications for honey bee and hive health and management by beekeepers.
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Affiliation(s)
- Kenya E Fernandes
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, Australia
| | - Elizabeth A Frost
- Animal Genetics & Breeding Unit (ABGU), A Joint Venture of NSW Department of Primary Industries and University of New England, Armidale, NSW, Australia.,NSW Department of Primary Industries, Paterson, NSW, Australia
| | - Emily J Remnant
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, Australia
| | - Kathleen R Schell
- Australian Institute for Microbiology and Infection, University of Technology, Sydney, NSW, Australia
| | - Nural N Cokcetin
- Australian Institute for Microbiology and Infection, University of Technology, Sydney, NSW, Australia
| | - Dee A Carter
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, Australia.,Sydney Institute for Infectious Diseases, University of Sydney, Sydney, NSW, Australia
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9
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Honey: An Advanced Antimicrobial and Wound Healing Biomaterial for Tissue Engineering Applications. Pharmaceutics 2022; 14:pharmaceutics14081663. [PMID: 36015289 PMCID: PMC9414000 DOI: 10.3390/pharmaceutics14081663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 01/18/2023] Open
Abstract
Honey was used in traditional medicine to treat wounds until the advent of modern medicine. The rising global antibiotic resistance has forced the development of novel therapies as alternatives to combat infections. Consequently, honey is experiencing a resurgence in evaluation for antimicrobial and wound healing applications. A range of both Gram-positive and Gram-negative bacteria, including antibiotic-resistant strains and biofilms, are inhibited by honey. Furthermore, susceptibility to antibiotics can be restored when used synergistically with honey. Honey’s antimicrobial activity also includes antifungal and antiviral properties, and in most varieties of honey, its activity is attributed to the enzymatic generation of hydrogen peroxide, a reactive oxygen species. Non-peroxide factors include low water activity, acidity, phenolic content, defensin-1, and methylglyoxal (Leptospermum honeys). Honey has also been widely explored as a tissue-regenerative agent. It can contribute to all stages of wound healing, and thus has been used in direct application and in dressings. The difficulty of the sustained delivery of honey’s active ingredients to the wound site has driven the development of tissue engineering approaches (e.g., electrospinning and hydrogels). This review presents the most in-depth and up-to-date comprehensive overview of honey’s antimicrobial and wound healing properties, commercial and medical uses, and its growing experimental use in tissue-engineered scaffolds.
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10
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Green KJ, Lawag IL, Locher C, Hammer KA. Correlation of the antibacterial activity of commercial manuka and Leptospermum honeys from Australia and New Zealand with methylglyoxal content and other physicochemical characteristics. PLoS One 2022; 17:e0272376. [PMID: 35901185 PMCID: PMC9333225 DOI: 10.1371/journal.pone.0272376] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/18/2022] [Indexed: 01/22/2023] Open
Abstract
Variation in the antibacterial potency of manuka honey has been reported in several published studies. However, many of these studies examine only a few honey samples, or test activity against only a few bacterial isolates. To address this deficit, a collection of 29 manuka/Leptospermum honeys was obtained, comprising commercial manuka honeys from Australia and New Zealand and several Western Australian Leptospermum honeys obtained directly from beekeepers. The antibacterial activity of honeys was quantified using several methods, including the broth microdilution method to determine minimum inhibitory concentrations (MICs) against four species of test bacteria, the phenol equivalence method, determination of antibacterial activity values from optical density, and time kill assays. Several physicochemical parameters or components were also quantified, including methylglyoxal (MGO), dihydroxyacetone (DHA), hydroxymethylfurfural (HMF) and total phenolics content as well as pH, colour and refractive index. Total antioxidant activity was also determined using the DPPH* (2,2-diphenyl-1-picrylhydrazyl) and FRAP (ferric reducing–antioxidant power) assays. Levels of MGO quantified in each honey were compared to the levels stated on the product labels, which revealed mostly minor differences. Antibacterial activity studies showed that MICs varied between different honey samples and between bacterial species. Correlation of the MGO content of honey with antibacterial activity showed differing relationships for each test organism, with Pseudomonas aeruginosa showing no relationship, Staphylococcus aureus showing a moderate relationship and both Enterococcus faecalis and Escherichia coli showing strong positive correlations. The association between MGO content and antibacterial activity was further investigated by adding known concentrations of MGO to a multifloral honey and quantifying activity, and by also conducting checkerboard assays. These investigations showed that interactions were largely additive in nature, and that synergistic interactions between MGO and the honey matrix did not occur.
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Affiliation(s)
- Kathryn J. Green
- School of Biomedical Sciences, The University of Western Australia (UWA), Crawley, Western Australia, Australia
- Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), Yanchep, Western Australia, Australia
| | - Ivan L. Lawag
- Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), Yanchep, Western Australia, Australia
- Division of Pharmacy, School of Allied Health, UWA, Crawley, WA, Australia
| | - Cornelia Locher
- Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), Yanchep, Western Australia, Australia
- Division of Pharmacy, School of Allied Health, UWA, Crawley, WA, Australia
| | - Katherine A. Hammer
- School of Biomedical Sciences, The University of Western Australia (UWA), Crawley, Western Australia, Australia
- Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), Yanchep, Western Australia, Australia
- The Marshall Centre for Infectious Diseases Research and Training, School of Biomedical Sciences, UWA, Crawley, WA, Australia
- * E-mail:
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11
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Taïbi N, Ameraoui R, Kaced A, Abou-Mustapha M, Bouchama A, Djafri A, Taïbi A, Mellahi K, Hadjadj M, Touati S, Badri FZ, Djema S, Masmoudi Y, Belmiri S, Khammar F. Multifloral white honey outclasses manuka honey in methylglyoxal content: assessment of free and encapsulated methylglyoxal and anti-microbial peptides in liposomal formulation against toxigenic potential of Bacillus subtilis Subsp spizizenii strain. Food Funct 2022; 13:7591-7613. [PMID: 35731546 DOI: 10.1039/d2fo00566b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The therapeutic virtues of honey no longer need to be proven. Honey, which is rich in nutrients, is an excellent nutritional food because of its many properties; however, honey has been diverted from this primary function and used in clinical research. Evidence has shown that honey still possesses unknown properties and some of these aspects have never been addressed. In this work, two bioactive compounds found in honey (methylglyoxal and antimicrobial peptides) were evaluated for their anti-Bacillus subtilis activity with particular attention to their dilution factor. Although this bacterial strain does not possess an indigenous virulence factor gene, it becomes virulent by transferring plasmids with B. thuringiensis or expression of toxins from Bordetella pertussis. As is known, methylglyoxal is a toxic electrophile present in many eukaryotic and prokaryotic cells, which is generated by enzymatic and non-enzymatic reactions. Its overexpression successfully kills bacteria by inducing membrane disruption. Also, AMPs show potent inhibitory action against Gram-positive bacteria. Because of the lack of information concerning the main ingredients of honey, the microencapsulation process was used. Both methylglyoxal (MGO) and peptide-loaded liposomes were synthesized, characterized and compared to their free forms. The liposomal formulations contained a mixture of eggPC, cholesterol, and octadecylamine and their particle sizes were measured and their encapsulation efficacy calculated. The results revealed that Algerian multifloral white honey contained higher levels of MGO compared to manuka honey, which prevented bacterial growth and free MGO was relatively less effective. In fact, MGO killed BS in the loaded form with the same bacteriostatic and bactericidal index. However, the action of AMPs was different. Indeed, the investigation into the reactivity of MGO in the solvent indicated that regardless of the level of water added, honey is active at a fixed dilution. This data introduces the notion of dilution and abolishes the concept of concentration. Moreover, the synergistic antibacterial effect of the compounds in honey was diminished by the matrix effect. The degree of liposome-bacteria-fusion and the delay effect observed could be explain by both the composition and nature of the lipids used. Finally, this study reinforces the idea that under certain conditions, the metalloproteinases in honey produce AMPs.
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Affiliation(s)
- Nadia Taïbi
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria. .,Université des Sciences et de la Technologie Houari Boumediene (USTHB), Faculté des Sciences Biologiques (FSB), Laboratoire de Recherche sur les Zones Arides, (LRZA), BP 32 El Alia 16111, Bab Ezzouar 16111, Algeria
| | - Rachid Ameraoui
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Amel Kaced
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Mohamed Abou-Mustapha
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Abdelghani Bouchama
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Ahmed Djafri
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Amina Taïbi
- Laboratoire de Parasitologie et Mycologie, Laboratoire de Recherche Santé et production Animale, École Nationale Supérieure Vétérinaire, B.P. 228, Oued Smar, Alger, Algeria
| | - Kahina Mellahi
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Mohamed Hadjadj
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Souad Touati
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Fatima-Zohra Badri
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Souhila Djema
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Yasmina Masmoudi
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Sarah Belmiri
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria.
| | - Farida Khammar
- Université des Sciences et de la Technologie Houari Boumediene (USTHB), Faculté des Sciences Biologiques (FSB), Laboratoire de Recherche sur les Zones Arides, (LRZA), BP 32 El Alia 16111, Bab Ezzouar 16111, Algeria
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Lan D, Zhang Y, Zhang H, Zhou J, Chen X, Li Z, Dai F. Silk fibroin/polycaprolactone nanofibrous membranes loaded with natural Manuka honey for potential wound healing. J Appl Polym Sci 2022. [DOI: 10.1002/app.51686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Dongwei Lan
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
| | - Yuqin Zhang
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
| | - Haiqiang Zhang
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
| | - Jiale Zhou
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
| | - Xiang Chen
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
| | - Zhi Li
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
| | - Fangyin Dai
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of sericulture, Textile and Biomass Sciences Southwest University Chongqing China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs Southwest University Chongqing China
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Muhrbeck M, Wladis A, Lampi M, Andersson P, Junker JPE. Efficacy of topical honey compared to systemic gentamicin for treatment of infected war wounds in a porcine model: A non-inferiority experimental pilot study. Injury 2022; 53:381-392. [PMID: 34756413 DOI: 10.1016/j.injury.2021.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/11/2021] [Accepted: 10/18/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND In armed conflicts, infected wounds constitute a large portion of the surgical workload. Treatment consists of debridements, change of dressings, and antibiotics. Many surgeons advocate for the use of honey as an adjunct with the rationale that honey has bactericidal and hyperosmotic properties. However, according to a Cochrane review from 2015 there is insufficient data to draw any conclusions regarding the efficacy of honey in treatment of wounds. We, therefore, decided to evaluate if honey is non-inferior to gentamicin in the treatment of infected wounds in a highly translatable porcine wound model. MATERIAL AND METHODS 50 standardized wounds on two pigs were infected with S. aureus and separately treated with either topically applied Manuka honey or intramuscular gentamicin for eight days. Treatment efficacy was evaluated with quantitative cultures, wound area measurements, histological, immunohistochemical assays, and inflammatory response. RESULTS Topically applied Manuka honey did not reduce bacterial count or wound area for the duration of treatment. Intramuscular gentamicin initially reduced bacterial count (geometric mean 5.59*¸0.37 - 4.27*¸0.80 log10 (GSD) CFU/g), but this was not sustained for the duration of the treatment. However, wound area was significantly reduced with intramuscular gentamicin at the end of treatment (mean 112.8 ± 30.0-67.7 ± 13.2 (SD) mm2). ANOVA-analysis demonstrated no variation in bacterial count for the two treatments but significant variation in wound area (p<0.0001). The inflammatory response was more persistent in the pig with wounds treated with topically applied Manuka honey than in the pig treated with intramuscular gentamicin. CONCLUSION At the end of treatment S. aureus count was the same with topically applied Manuka honey and intramuscular gentamicin. The wound area was unchanged with topically applied Manuka honey and decreased with intramuscular gentamicin. Topically applied Manuka honey could consequently be non-inferior to intramuscular gentamicin in reducing S. aureus colonization on the wound's surface, but not in reducing wound size. The use of Manuka honey dressings to prevent further progression of a wound infection may therefore be of value in armed conflicts, where definite care is not immediately available.
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Affiliation(s)
- Måns Muhrbeck
- Department of Surgery in Norrköping, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Biomedical and Clinical Sciences, Center for Disaster Medicine and Traumatology, Linköping University, Linköping, Sweden.
| | - Andreas Wladis
- Department of Biomedical and Clinical Sciences, Center for Disaster Medicine and Traumatology, Linköping University, Linköping, Sweden; Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Maria Lampi
- Department of Biomedical and Clinical Sciences, Center for Disaster Medicine and Traumatology, Linköping University, Linköping, Sweden
| | - Peter Andersson
- Department of Biomedical and Clinical Sciences, Center for Disaster Medicine and Traumatology, Linköping University, Linköping, Sweden; Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Johan P E Junker
- Department of Biomedical and Clinical Sciences, Center for Disaster Medicine and Traumatology, Linköping University, Linköping, Sweden; Department of Biomedical and Clinical Sciences, Laboratory of Experimental Plastic Surgery, Linköping University, Linköping, Sweden
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Popkov VA, Zharikova AA, Demchenko EA, Andrianova NV, Zorov DB, Plotnikov EY. Gut Microbiota as a Source of Uremic Toxins. Int J Mol Sci 2022; 23:ijms23010483. [PMID: 35008909 PMCID: PMC8745165 DOI: 10.3390/ijms23010483] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/26/2021] [Accepted: 12/28/2021] [Indexed: 12/20/2022] Open
Abstract
Uremic retention solutes are the compounds that accumulate in the blood when kidney excretory function is impaired. Some of these compounds are toxic at high concentrations and are usually known as “uremic toxins”. The cumulative detrimental effect of uremic toxins results in numerous health problems and eventually mortality during acute or chronic uremia, especially in end-stage renal disease. More than 100 different solutes increase during uremia; however, the exact origin for most of them is still debatable. There are three main sources for such compounds: exogenous ones are consumed with food, whereas endogenous ones are produced by the host metabolism or by symbiotic microbiota metabolism. In this article, we identify uremic retention solutes presumably of gut microbiota origin. We used database analysis to obtain data on the enzymatic reactions in bacteria and human organisms that potentially yield uremic retention solutes and hence to determine what toxins could be synthesized in bacteria residing in the human gut. We selected biochemical pathways resulting in uremic retention solutes synthesis related to specific bacterial strains and revealed links between toxin concentration in uremia and the proportion of different bacteria species which can synthesize the toxin. The detected bacterial species essential for the synthesis of uremic retention solutes were then verified using the Human Microbiome Project database. Moreover, we defined the relative abundance of human toxin-generating enzymes as well as the possibility of the synthesis of a particular toxin by the human metabolism. Our study presents a novel bioinformatics approach for the elucidation of the origin of both uremic retention solutes and uremic toxins and for searching for the most likely human microbiome producers of toxins that can be targeted and used for the therapy of adverse consequences of uremia.
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Affiliation(s)
- Vasily A. Popkov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (V.A.P.); (A.A.Z.); (E.A.D.); (N.V.A.); (D.B.Z.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Anastasia A. Zharikova
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (V.A.P.); (A.A.Z.); (E.A.D.); (N.V.A.); (D.B.Z.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Evgenia A. Demchenko
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (V.A.P.); (A.A.Z.); (E.A.D.); (N.V.A.); (D.B.Z.)
| | - Nadezda V. Andrianova
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (V.A.P.); (A.A.Z.); (E.A.D.); (N.V.A.); (D.B.Z.)
| | - Dmitry B. Zorov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (V.A.P.); (A.A.Z.); (E.A.D.); (N.V.A.); (D.B.Z.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Egor Y. Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (V.A.P.); (A.A.Z.); (E.A.D.); (N.V.A.); (D.B.Z.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
- Correspondence: ; Tel.: +7-(495)939-59-44
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15
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Kaur C, Gupta M, Garai S, Mishra SK, Chauhan PS, Sopory S, Singla-Pareek SL, Adlakha N, Pareek A. Microbial methylglyoxal metabolism contributes towards growth promotion and stress tolerance in plants. Environ Microbiol 2021; 24:2817-2836. [PMID: 34435423 DOI: 10.1111/1462-2920.15743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022]
Abstract
Plant growth promotion by microbes is a cumulative phenomenon involving multiple traits, many of which are not explored yet. Hence, to unravel microbial mechanisms underlying growth promotion, we have analysed the genomes of two potential growth-promoting microbes, viz., Pseudomonas sp. CK-NBRI-02 (P2) and Bacillus marisflavi CK-NBRI-03 (P3) for the presence of plant-beneficial traits. Besides known traits, we found that microbes differ in their ability to metabolize methylglyoxal (MG), a ubiquitous cytotoxin regarded as general consequence of stress in plants. P2 exhibited greater tolerance to MG and possessed better ability to sustain plant growth under dicarbonyl stress. However, under salinity, only P3 showed a dose-dependent induction in MG detoxification activity in accordance with concomitant increase in MG levels, contributing to enhanced salt tolerance. Furthermore, salt-stressed transcriptomes of both the strains showed differences with respect to MG, ion and osmolyte homeostasis, with P3 being more responsive to stress. Importantly, application of either strain altered MG levels and subsequently MG detoxification machinery in Arabidopsis, probably to strengthen plant defence response and growth. We therefore, suggest a crucial role of microbial MG resistance in plant growth promotion and that it should be considered as a beneficial trait while screening microbes for stress mitigation in plants.
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Affiliation(s)
- Charanpreet Kaur
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.,International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Mayank Gupta
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Sampurna Garai
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Shashank K Mishra
- Microbial Technologies Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - Puneet Singh Chauhan
- Microbial Technologies Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - Sudhir Sopory
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Sneh L Singla-Pareek
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Nidhi Adlakha
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad, Haryana, 121001, India
| | - Ashwani Pareek
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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16
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Nader RA, Mackieh R, Wehbe R, El Obeid D, Sabatier JM, Fajloun Z. Beehive Products as Antibacterial Agents: A Review. Antibiotics (Basel) 2021; 10:717. [PMID: 34203716 PMCID: PMC8232087 DOI: 10.3390/antibiotics10060717] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/09/2021] [Accepted: 06/12/2021] [Indexed: 12/31/2022] Open
Abstract
Honeybees are one of the most marvelous and economically beneficial insects. As pollinators, they play a vital role in every aspect of the ecosystem. Beehive products have been used for thousands of years in many cultures for the treatment of various diseases. Their healing properties have been documented in many religious texts like the Noble Quran and the Holy Bible. Honey, bee venom, propolis, pollen and royal jelly all demonstrated a richness in their bioactive compounds which make them effective against a variety of bacterial strains. Furthermore, many studies showed that honey and bee venom work as powerful antibacterial agents against a wide range of bacteria including life-threatening bacteria. Several reports documented the biological activities of honeybee products but none of them emphasized on the antibacterial activity of all beehive products. Therefore, this review aims to highlight the antibacterial activity of honey, bee venom, propolis, pollen and royal jelly, that are produced by honeybees.
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Affiliation(s)
- Rita Abou Nader
- Faculty of Sciences 3, Department of Biology, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon; (R.A.N.); (R.M.)
| | - Rawan Mackieh
- Faculty of Sciences 3, Department of Biology, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon; (R.A.N.); (R.M.)
| | - Rim Wehbe
- Biology Department, Faculty of Arts and Sciences, American University of Beirut, Beirut 1107 2020, Lebanon;
| | - Dany El Obeid
- Faculty of Agriculture & Veterinary Sciences, Lebanese University, Dekwaneh, Beirut 2832, Lebanon;
| | - Jean Marc Sabatier
- Faculté de Médecine Secteur Nord, 51, Université Aix-Marseille, Institut de Neuro-Physiopathologie, UMR 7051, Boulevard Pierre Dramard-CS80011, CEDEX 15, 13344 Marseille, France
| | - Ziad Fajloun
- Faculty of Sciences 3, Department of Biology, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon; (R.A.N.); (R.M.)
- Laboratory of Applied Biotechnology (LBA3B), Azm Center for Research in Biotechnology and its Applications, EDST, Lebanese University, Tripoli 1300, Lebanon
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Felbaum DR, Dowlati E, Jacobs M, Tom LK. Manuka Honey: Feasibility and Safety in Postoperative Neurosurgical Wound Care. Adv Skin Wound Care 2021; 34:249-253. [PMID: 33852461 DOI: 10.1097/01.asw.0000741508.83558.ce] [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: 11/25/2022]
Abstract
OBJECTIVE To date, no reports have been published on active Leptospermum manuka honey (ALH) feasibility as a postoperative topical wound supplement in neurosurgical patients. The objective of the study is to present the authors' initial experience with using ALH in postoperative neurosurgical patients. METHODS A single-surgeon retrospective case series review of cranial and spinal operations between 2018 and 2020 was performed in patients with nonhealing wounds or wounds deemed "at risk" as defined by grade 1 Sandy surgical wound dehiscence grading classification. An ALH gel or ointment was applied to these incisions once a day for 2 to 4 weeks. Patients were followed up in the clinic every 2 weeks until incisions had healed. RESULTS Twenty-five postoperative patients (12 cranial, 13 spinal) were identified to be at high risk of operative debridement. All 25 patients were prescribed a topical application of ALH, which was easily adopted without patient-related adverse events. Seven (four cranial, three spinal) patients required operative debridement and treatment with long-term antibiotic therapy. CONCLUSIONS In this small case series of neurosurgical patients who were at risk of poor wound healing, the application of medical-grade ALH was well tolerated without patient-reported adverse events. The ALH may have prevented the need for operative debridement in the majority of patients. Further prospective studies are necessary to establish its efficacy in wound healing in the neurosurgical population.
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Affiliation(s)
- Daniel R Felbaum
- At the MedStar Washington Hospital Center, in Washington, DC, Daniel R. Felbaum, MD, is Assistant Professor, Department of Neurosurgery; Ehsan Dowlati, MD, is Resident Physician, Department of Neurosurgery; Matthew Jacobs, PA-C, is Physician Assistant, Department of Neurosurgery; and Laura K. Tom, MD, is Assistant Professor, Department of Plastic and Reconstructive Surgery. The authors have disclosed no financial relationships related to this article. Submitted May 22, 2020; accepted in revised form July 7, 2020
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18
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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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19
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Nolan VC, Harrison J, Wright JEE, Cox JAG. Clinical Significance of Manuka and Medical-Grade Honey for Antibiotic-Resistant Infections: A Systematic Review. Antibiotics (Basel) 2020; 9:antibiotics9110766. [PMID: 33142845 PMCID: PMC7693943 DOI: 10.3390/antibiotics9110766] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 01/22/2023] Open
Abstract
Antimicrobial resistance is an ever-increasing global issue that has the potential to overtake cancer as the leading cause of death worldwide by 2050. With the passing of the "golden age" of antibiotic discovery, identifying alternative treatments to commonly used antimicrobials is more important than ever. Honey has been used as a topical wound treatment for millennia and more recently has been formulated into a series of medical-grade honeys for use primarily for wound and burn treatment. In this systematic review, we examined the effectiveness of differing honeys as an antimicrobial treatment against a variety of multidrug-resistant (MDR) bacterial species. We analysed 16 original research articles that included a total of 18 different types of honey against 32 different bacterial species, including numerous MDR strains. We identified that Surgihoney was the most effective honey, displaying minimum inhibitory concentrations as low as 0.1% (w/v); however, all honeys reviewed showed a high efficacy against most bacterial species analysed. Importantly, the MDR status of each bacterial strain had no impact on the susceptibility of the organism to honey. Hence, the use of honey as an antimicrobial therapy should be considered as an alternative approach for the treatment of antibiotic-resistant infections.
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Affiliation(s)
- Victoria C. Nolan
- College of Health and Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (V.C.N.); (J.H.)
| | - James Harrison
- College of Health and Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (V.C.N.); (J.H.)
| | - John E. E. Wright
- Department of Intensive Care Medicine, Great Western Hospital NHS Foundation Trust, Swindon SN3 6BB, UK;
| | - Jonathan A. G. Cox
- College of Health and Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (V.C.N.); (J.H.)
- Correspondence: ; Tel.: +44-121-204-5011
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20
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Al-Hatamleh MAI, Hatmal MM, Sattar K, Ahmad S, Mustafa MZ, Bittencourt MDC, Mohamud R. Antiviral and Immunomodulatory Effects of Phytochemicals from Honey against COVID-19: Potential Mechanisms of Action and Future Directions. Molecules 2020; 25:E5017. [PMID: 33138197 PMCID: PMC7672575 DOI: 10.3390/molecules25215017] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 12/15/2022] Open
Abstract
The new coronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has recently put the world under stress, resulting in a global pandemic. Currently, there are no approved treatments or vaccines, and this severe respiratory illness has cost many lives. Despite the established antimicrobial and immune-boosting potency described for honey, to date there is still a lack of evidence about its potential role amid COVID-19 outbreak. Based on the previously explored antiviral effects and phytochemical components of honey, we review here evidence for its role as a potentially effective natural product against COVID-19. Although some bioactive compounds in honey have shown potential antiviral effects (i.e., methylglyoxal, chrysin, caffeic acid, galangin and hesperidinin) or enhancing antiviral immune responses (i.e., levan and ascorbic acid), the mechanisms of action for these compounds are still ambiguous. To the best of our knowledge, this is the first work exclusively summarizing all these bioactive compounds with their probable mechanisms of action as antiviral agents, specifically against SARS-CoV-2.
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Affiliation(s)
- Mohammad A. I. Al-Hatamleh
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (M.A.I.A.-H.); (S.A.)
| | - Ma’mon M. Hatmal
- Department of Medical Laboratory Sciences, Faculty of Applied Health Sciences, The Hashemite University, Zarqa 13133, Jordan;
| | - Kamran Sattar
- Department of Medical Education, College of Medicine, King Saud University, Riyadh 11472, Saudi Arabia;
| | - Suhana Ahmad
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (M.A.I.A.-H.); (S.A.)
| | - Mohd Zulkifli Mustafa
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia;
- Hospital Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Marcelo De Carvalho Bittencourt
- Université de Lorraine, CNRS, UMR 7365, IMoPA, F-54000 Nancy, France;
- Université de Lorraine, CHRU-Nancy, Laboratoire d’Immunologie, F-54000 Nancy, France
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (M.A.I.A.-H.); (S.A.)
- Hospital Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
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Feng J, Li R, Zhang S, Bu Y, Chen Y, Cui Y, Lin B, Chen Y, Tao Y, Wu B. Bioretrosynthesis of Functionalized N-Heterocycles from Glucose via One-Pot Tandem Collaborations of Designed Microbes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001188. [PMID: 32995125 PMCID: PMC7507072 DOI: 10.1002/advs.202001188] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/29/2020] [Indexed: 05/10/2023]
Abstract
The design of multistrain systems has markedly expanded the prospects of using long biosynthetic pathways to produce natural compounds. However, the cooperative use of artificially engineered microbes to synthesize xenobiotic chemicals from renewable carbohydrates is still in its infancy. Here, a microbial system is developed for the production of high-added-value N-heterocycles directly from glucose. Based on a retrosynthetic analysis, eleven genes are selected, systematically modulated, and overexpressed in three Escherichia coli strains to construct an artificial pathway to produce 5-methyl-2-pyrazinecarboxylic acid, a key intermediate in the production of the important pharmaceuticals Glipizide and Acipimox. Via one-pot tandem collaborations, the designed microbes remarkably realize high-level production of 5-methyl-2-pyrazinecarboxylic acid (6.2 ± 0.1 g L-1) and its precursor 2,5-dimethylpyrazine (7.9 ± 0.7 g L-1). This study is the first application of cooperative microbes for the total biosynthesis of functionalized N-heterocycles and provides new insight into integrating bioretrosynthetic principles with synthetic biology to perform complex syntheses.
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Affiliation(s)
- Jing Feng
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijingChina
| | - Ruifeng Li
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijingChina
| | - Shasha Zhang
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijingChina
| | - Yifan Bu
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijingChina
| | - Yanchun Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijingChina
| | - Yinglu Cui
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Baixue Lin
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Yihua Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Bian Wu
- CAS Key Laboratory of Microbial Physiological and Metabolic EngineeringState Key Laboratory of Microbial ResourcesInstitute of MicrobiologyChinese Academy of SciencesBeijing100101P. R. China
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22
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Noble AS, Noe S, Clearwater MJ, Lee CK. A core phyllosphere microbiome exists across distant populations of a tree species indigenous to New Zealand. PLoS One 2020; 15:e0237079. [PMID: 32790769 PMCID: PMC7425925 DOI: 10.1371/journal.pone.0237079] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 07/19/2020] [Indexed: 12/30/2022] Open
Abstract
The phyllosphere microbiome is increasingly recognised as an influential component of plant physiology, yet it remains unclear whether stable host-microbe associations generally exist in the phyllosphere. Leptospermum scoparium (mānuka) is a tea tree indigenous to New Zealand, and honey derived from mānuka is widely known to possess unique antimicrobial properties. However, the host physiological traits associated with these antimicrobial properties vary widely, and the specific cause of such variation has eluded scientists despite decades of research. Notably, the mānuka phyllosphere microbiome remains uncharacterised, and its potential role in mediating host physiology has not been considered. Working within the prevailing core microbiome conceptual framework, we hypothesise that the phyllosphere microbiome of mānuka exhibits specific host association patterns congruent with those of a microbial community under host selective pressure (null hypothesis: the mānuka phyllosphere microbiome is recruited stochastically from the surrounding environment). To examine our hypothesis, we characterised the phyllosphere and associated soil microbiomes of five distinct and geographically distant mānuka populations across the North Island of New Zealand. We identified a habitat-specific and relatively abundant core microbiome in the mānuka phyllosphere, which was persistent across all samples. In contrast, non-core phyllosphere microorganisms exhibited significant variation across individual host trees and populations that was strongly driven by environmental and spatial factors. Our results demonstrate the existence of a dominant and ubiquitous core microbiome in the phyllosphere of mānuka, supporting our hypothesis that phyllosphere microorganisms of mānuka exhibit specific host association and potentially mediate physiological traits of this nationally and culturally treasured indigenous plant. In addition, our results illustrate biogeographical patterns in mānuka phyllosphere microbiomes and offer insight into factors contributing to phyllosphere microbiome assembly.
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Affiliation(s)
- Anya S. Noble
- School of Science, University of Waikato, Hamilton, New Zealand
| | - Stevie Noe
- School of Science, University of Waikato, Hamilton, New Zealand
| | | | - Charles K. Lee
- School of Science, University of Waikato, Hamilton, New Zealand
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23
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Tang JS, Compton BJ, Marshall A, Anderson R, Li Y, van der Woude H, Hermans IF, Painter GF, Gasser O. Mānuka honey-derived methylglyoxal enhances microbial sensing by mucosal-associated invariant T cells. Food Funct 2020; 11:5782-5787. [PMID: 32618294 DOI: 10.1039/d0fo01153c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Methylglyoxal (MGO) is the main antimicrobial determinant associated with using Mānuka Honey as a topical dressing. While direct mechanisms of Mānuka honey MGO's antimicrobial activity have been demonstrated, such as disruption of bacterial fimbria and flagella, no interaction of Mānuka honey-derived MGO with antimicrobial effector cells of the immune system, such as mucosal-associated invariant T cells (MAIT cells), has yet been reported. MAIT cells are an abundant subset of human T cells, critical for regulating a diverse range of immune functions, including antimicrobial defense mechanisms but also mucosal barrier integrity. MAIT cells become activated by recognition of an important microbial metabolite, 5-amino-6-d-ribitylaminouracil (5-A-RU), which is produced by a wide range of microbial pathogens and commensals. Recognition is afforded when 5-A-RU condenses with mammalian-cell derived MGO to form the potent MAIT cell activator, 5-(2-oxopropylideneamino)-6-d-ribitylaminouracil (5-OP-RU). Formation of 5-OP-RU and its subsequent presentation to MAIT cells by major histocompatibility (MHC)-related molecule 1 (MR1) facilitates host-pathogen and host-commensal interactions. While MGO is a metabolite naturally present in mammalian cells, it is unclear whether exogenous dietary MGO sources, such as those obtained from Mānuka honey intake, can contribute to 5-OP-RU formation and enhance MAIT cell activation. In this work, we report that endogenous MGO is the rate-limiting substrate for converting microbial 5-A-RU to 5-OP-RU and that Mānuka honey-derived MGO significantly enhances MAIT cell activation in vitro. Our findings posit a novel mechanism by which intake of a food item, such as Mānuka honey, can potentially support immune homeostasis by enhancing MAIT cell-specific microbial sensing.
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Affiliation(s)
- Jeffry S Tang
- Malaghan Institute of Medical Research, PO Box 7060, Wellington 6242, New Zealand.
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24
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Chamchoy K, Pumirat P, Reamtong O, Pakotiprapha D, Leartsakulpanich U, Boonyuen U. Functional analysis of BPSS2242 reveals its detoxification role in Burkholderia pseudomallei under salt stress. Sci Rep 2020; 10:10453. [PMID: 32591552 PMCID: PMC7320009 DOI: 10.1038/s41598-020-67382-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/05/2020] [Indexed: 01/26/2023] Open
Abstract
A bpss2242 gene, encoding a putative short-chain dehydrogenase/oxidoreductase (SDR) in Burkholderia pseudomallei, was identified and its expression was up-regulated by ten-fold when B. pseudomallei was cultured under high salt concentration. Previous study suggested that BPSS2242 plays important roles in adaptation to salt stress and pathogenesis; however, its biological functions are still unknown. Herein, we report the biochemical properties and functional characterization of BPSS2242 from B. pseudomallei. BPSS2242 exhibited NADPH-dependent reductase activity toward diacetyl and methylglyoxal, toxic electrophilic dicarbonyls. The conserved catalytic triad was identified and found to play critical roles in catalysis and cofactor binding. Tyr162 and Lys166 are involved in NADPH binding and mutation of Lys166 causes a conformational change, altering protein structure. Overexpression of BPSS2242 in Escherichia coli increased bacterial survival upon exposure to diacetyl and methylglyoxal. Importantly, the viability of B. pseudomallei encountered dicarbonyl toxicity was enhanced when cultured under high salt concentration as a result of BPSS2242 overexpression. This is the first study demonstrating that BPSS2242 is responsible for detoxification of toxic metabolites, constituting a protective system against reactive carbonyl compounds in B. pseudomallei..
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Affiliation(s)
- Kamonwan Chamchoy
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - Pornpan Pumirat
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - Onrapak Reamtong
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - Danaya Pakotiprapha
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.,Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Ubolsree Leartsakulpanich
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, 12120, Thailand
| | - Usa Boonyuen
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand.
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25
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Yang M, Ward J, Choy KL. Nature-Inspired Bacterial Cellulose/Methylglyoxal (BC/MGO) Nanocomposite for Broad-Spectrum Antimicrobial Wound Dressing. Macromol Biosci 2020; 20:e2000070. [PMID: 32567254 DOI: 10.1002/mabi.202000070] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/07/2020] [Indexed: 11/05/2022]
Abstract
Bacterial cellulose (BC) is a natural material produced by Acetobacter xylinum, widely used in wound dressings due to the high water-holding capacity and great mechanical strength. In this paper, a novel antimicrobial dressing made from BC/methylglyoxal (MGO) composite with a dip-coating method inspired by naturally antimicrobial Manuka honey is proposed, which to our best knowledge, has not yet to be reported. Characterizations by scanning electron microscope and atomic force microscopy show the interconnected nanostructure of BC and MGO and increase surface roughness of the BC/MGO composite. Thermal analysis indicates high temperature stability of both BC and BC/MGO, while compared with BC, BC/MGO exhibits slightly weaker thermal stability possibly due to reduction of hydrogen bonding and increase of crystallinity. Mechanical test confirms the strong mechanical property of BC and BC/MGO nanocomposite. From the disk diffusion antimicrobial test, the BC/MGO nanocomposite with highest MGO concentration (4%) shows great zone inhibition diameter (around 14.3, 12.3, 17.1, and 15.5 mm against Micrococcus luteus, Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli). Compared with other antimicrobial wound dressing composite materials, the proposed BC/MGO nanocomposite has among the greatest antimicrobial property against broad-spectrum bacteria, making it a promising antimicrobial dressing in chronic wounds care.
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Affiliation(s)
- Manni Yang
- Institute for Materials Discovery, Department of Chemistry, University College London, Roberts Building 1.08 Laboratory, London, WC1E 7JE, UK
| | - John Ward
- The Advanced Center for Biochemical Engineering, Department of Biochemical Engineering, University College London, Room 6.09 Bernard Katz Building, London, WC1E 6BT, UK
| | - Kwang-Leong Choy
- Institute for Materials Discovery, Faculty of Maths and Physical Sciences, University College London, Room 1.07 Roberts Building, London, WC1E 7JE, UK
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26
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Ullah A, Ullah S, Khan MQ, Hashmi M, Nam PD, Kato Y, Tamada Y, Kim IS. Manuka honey incorporated cellulose acetate nanofibrous mats: Fabrication and in vitro evaluation as a potential wound dressing. Int J Biol Macromol 2020; 155:479-489. [PMID: 32240741 DOI: 10.1016/j.ijbiomac.2020.03.237] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/18/2020] [Accepted: 03/28/2020] [Indexed: 12/21/2022]
Abstract
Wound dressings are the primary barrier between the wound surface and the outer environment. Here we report the fabrication of cellulose acetate (CA)-Manuka honey (MH) composite nanofibrous mats as a biocompatible and antimicrobial wound dressing. CA mats with different quantities of MH were developed by electrospinning. The ATR-FTIR spectra confirm the inclusion of MH in the composite CA-MH nanofibrous mats. The fibers were continuous and bead-free with acceptable mechanical properties. The fiber diameter increased with an increase in MH content. Inclusion of MH in the electrospun composite CA-MH nanofibrous mats shows high efficacy to prevent bacterial growth on the wound surface. The MH loaded CA nanofiber mats showed good antioxidant abilities, while the ability to free radicalize the DPPH was dependent upon the factors of MH content in the fiber and the time of immersion in the DPPH solution. Besides, the nanofibrous mat's high porosity (85-90%) and WVTR values of 2600 to 1950 g/m2/day, suitable for wound breathability and the mats show high cytocompatibility to NIH 3T3 cell line in in vitro testing, proving to be effective for promoting wound healing.
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Affiliation(s)
- Azeem Ullah
- Nano Fusion Technology Research Group, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Sana Ullah
- Nano Fusion Technology Research Group, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Muhammad Qamar Khan
- Nano Fusion Technology Research Group, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Motahira Hashmi
- Nano Fusion Technology Research Group, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Phan Duy Nam
- Nano Fusion Technology Research Group, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Yo Kato
- Department of Applied Biology, Faculty of Textile Science and Technology, Bioresource and Environmental Science, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Yasushi Tamada
- Department of Applied Biology, Faculty of Textile Science and Technology, Bioresource and Environmental Science, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan
| | - Ick Soo Kim
- Nano Fusion Technology Research Group, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan.
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27
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Nolan VC, Harrison J, Cox JAG. Dissecting the Antimicrobial Composition of Honey. Antibiotics (Basel) 2019; 8:E251. [PMID: 31817375 PMCID: PMC6963415 DOI: 10.3390/antibiotics8040251] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/29/2019] [Accepted: 12/03/2019] [Indexed: 01/22/2023] Open
Abstract
Honey is a complex sweet food stuff with well-established antimicrobial and antioxidant properties. It has been used for millennia in a variety of applications, but the most noteworthy include the treatment of surface wounds, burns and inflammation. A variety of substances in honey have been suggested as the key component to its antimicrobial potential; polyphenolic compounds, hydrogen peroxide, methylglyoxal and bee-defensin 1. These components vary greatly across honey samples due to botanical origin, geographical location and secretions from the bee. The use of medical grade honey in the treatment of surface wounds and burns has been seen to improve the healing process, reduce healing time, reduce scarring and prevent microbial contamination. Therefore, if medical grade honeys were to be included in clinical treatment, it would reduce the demand for antibiotic usage. In this review, we outline the constituents of honey and how they affect antibiotic potential in a clinical setting. By identifying the key components, we facilitate the development of an optimally antimicrobial honey by either synthetic or semisynthetic production methods.
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Affiliation(s)
| | | | - Jonathan A. G. Cox
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (V.C.N.); (J.H.)
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28
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Martinotti S, Bucekova M, Majtan J, Ranzato E. Honey: An Effective Regenerative Medicine Product in Wound Management. Curr Med Chem 2019; 26:5230-5240. [DOI: 10.2174/0929867325666180510141824] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/09/2018] [Accepted: 04/10/2018] [Indexed: 12/12/2022]
Abstract
:Honey has successfully been used in the treatment of a broad spectrum of injuries including burns and non-healing wounds. It acts as an antibacterial and anti-biofilm agent with anti/pro-inflammatory properties. However, besides these traditional properties, recent evidence suggests that honey is also an immunomodulator in wound healing and contains several bee and plant-derived components that may speed up wound healing and tissue regeneration process. Identifying their exact mechanism of action allows better understanding of honey healing properties and promotes its wider translation into clinical practice.:This review will discuss the physiological basis for the use of honey in wound management, its current clinical uses, as well as the potential role of honey bioactive compounds in dermal regenerative medicine and tissue re-modeling.
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Affiliation(s)
- Simona Martinotti
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Viale Teresa Michel 11, Alessandria, 15121, Italy
| | - Marcela Bucekova
- Laboratory of Apidology and Apitherapy, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51, Bratislava, Slovakia
| | - Juraj Majtan
- Laboratory of Apidology and Apitherapy, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51, Bratislava, Slovakia
| | - Elia Ranzato
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Piazza Sant'Eusebio 5, Vercelli, 13100, Italy
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29
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The Effect of Manuka Honey on dHL-60 Cytokine, Chemokine, and Matrix-Degrading Enzyme Release under Inflammatory Conditions. ACTA ACUST UNITED AC 2019; 4. [PMID: 31245627 PMCID: PMC6594701 DOI: 10.20900/mo.20190005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A large body of in vivo and in vitro evidence indicates that Manuka honey resolves inflammation and promotes healing when applied topically to a wound. In this study, the effect of two different concentrations (0.5% and 3% v/v) of Manuka honey on the release of cytokines, chemokines, and matrix-degrading enzymes from neutrophils was examined using a differentiated HL-60 cell line model in the presence of inflammatory stimuli. The results indicate that 0.5% honey decreased TNF-α, IL-1β, MIP-1α, MIP-1β, IL-12 p70, MMP-9, MMP-1, FGF-13, IL-1ra, and IL-4 release, but increased MIP-3α, Proteinase 3, VEGF, and IL-8 levels. In contrast, 3% honey reduced the release of all analytes except TNF-α, whose release was increased. Together, these results demonstrate a dose-dependent ability of Manuka honey to modify the release of cytokines, chemokines, and matrix-degrading enzymes that promote or inhibit inflammation and/or healing within a wound. The findings of this study provide further guidance for the future use of Manuka honey in wounds or tissue engineering templates. Future in vivo investigation is warranted to validate the in vitro results and translate these results to physiologically relevant environments.
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30
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Li J, Cha R, Mou K, Zhao X, Long K, Luo H, Zhou F, Jiang X. Nanocellulose-Based Antibacterial Materials. Adv Healthc Mater 2018; 7:e1800334. [PMID: 29923342 DOI: 10.1002/adhm.201800334] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/18/2018] [Indexed: 11/12/2022]
Abstract
In recent years, nanocellulose-based antimicrobial materials have attracted a great deal of attention due to their unique and potentially useful features. In this review, several representative types of nanocellulose and modification methods for antimicrobial applications are mainly focused on. Recent literature related with the preparation and applications of nanocellulose-based antimicrobial materials is reviewed. The fabrication of nanocellulose-based antimicrobial materials for wound dressings, drug carriers, and packaging materials is the focus of the research. The most important additives employed in the preparation of nanocellulose-based antimicrobial materials are presented, such as antibiotics, metal, and metal oxide nanoparticles, as well as chitosan. These nanocellulose-based antimicrobial materials can benefit many applications including wound dressings, drug carriers, and packaging materials. Finally, the challenges of industrial production and potentials for development of nanocellulose-based antimicrobial materials are discussed.
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Affiliation(s)
- Juanjuan Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences (Beijing); Beijing 100083 China
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Ruitao Cha
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Kaiwen Mou
- CAS Key Laboratory of Bio-based Materials; Qingdao Institute of Bioenergy and Bioprocess Technology; University of Chinese Academy of Sciences; Qingdao 266101 China
| | - Xiaohui Zhao
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Keying Long
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
| | - Huize Luo
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences (Beijing); Beijing 100083 China
| | - Fengshan Zhou
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences (Beijing); Beijing 100083 China
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; Beijing 100190 China
- Sino-Danish College, University of Chinese Academy of Sciences; Beijing 100049 China
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31
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Minden-Birkenmaier BA, Bowlin GL. Honey-Based Templates in Wound Healing and Tissue Engineering. Bioengineering (Basel) 2018; 5:bioengineering5020046. [PMID: 29903998 PMCID: PMC6027142 DOI: 10.3390/bioengineering5020046] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/07/2018] [Accepted: 06/10/2018] [Indexed: 01/09/2023] Open
Abstract
Over the past few decades, there has been a resurgence in the clinical use of honey as a topical wound treatment. A plethora of in vitro and in vivo evidence supports this resurgence, demonstrating that honey debrides wounds, kills bacteria, penetrates biofilm, lowers wound pH, reduces chronic inflammation, and promotes fibroblast infiltration, among other beneficial qualities. Given these results, it is clear that honey has a potential role in the field of tissue engineering and regeneration. Researchers have incorporated honey into tissue engineering templates, including electrospun meshes, cryogels, and hydrogels, with varying degrees of success. This review details the current state of the field, including challenges which have yet to be overcome, and makes recommendations for the direction of future research in order to develop effective tissue regeneration therapies.
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Affiliation(s)
| | - Gary L Bowlin
- Department of Biomedical Engineering, University of Memphis, 3806 Norriswood Ave., Memphis, TN 38152, USA.
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Henatsch D, den Hartog GJ, Duijvestijn AM, Wolffs PF, Phielix E, Stokroos RJ, Briedé JJ. The contribution of α-dicarbonyl compound dependent radical formation to the antiseptic effect of honey. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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33
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Settem RP, Honma K, Shankar M, Li M, LaMonte M, Xu D, Genco RJ, Browne RW, Sharma A. Tannerella forsythia-produced methylglyoxal causes accumulation of advanced glycation endproducts to trigger cytokine secretion in human monocytes. Mol Oral Microbiol 2018; 33:292-299. [PMID: 29573211 DOI: 10.1111/omi.12224] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2018] [Indexed: 12/27/2022]
Abstract
The periodontal pathogen Tannerella forsythia has the unique ability to produce methylglyoxal (MGO), an electrophilic compound which can covalently modify amino acid side chains and generate inflammatory adducts known as advanced glycation endproducts (AGEs). In periodontitis, concentrations of MGO in gingival-crevicular fluid are increased and are correlated with the T. forsythia load. However, the source of MGO and the extent to which MGO may contribute to periodontal inflammation has not been fully explored. In this study we identified a functional homolog of the enzyme methylglyoxal synthase (MgsA) involved in the production of MGO in T. forsythia. While wild-type T.forsythia produced a significant amount of MGO in the medium, a mutant lacking this homolog produced little to no MGO. Furthermore, compared with the spent medium of the T. forsythia parental strain, the spent medium of the T. forsythia mgsA-deletion strain induced significantly lower nuclear factor-kappa B activity as well as proinflammogenic and pro-osteoclastogenic cytokines from THP-1 monocytes. The ability of T. forsythia to induce protein glycation endproducts via MGO was confirmed by an electrophoresis-based collagen chain mobility shift assay. Together these data demonstrated that T. forsythia produces MGO, which may contribute to inflammation via the generation of AGEs and thus act as a potential virulence factor of the bacterium.
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Affiliation(s)
- R P Settem
- Department of Oral Biology, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - K Honma
- Department of Oral Biology, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - M Shankar
- Department of Biotechnical and Clinical Laboratory Sciences, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - M Li
- Department of Oral Biology, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - M LaMonte
- Department of Epidemiology and Environmental Health, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - D Xu
- Department of Oral Biology, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - R J Genco
- Department of Oral Biology, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - R W Browne
- Department of Biotechnical and Clinical Laboratory Sciences, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
| | - A Sharma
- Department of Oral Biology, School of Public Health and Health Related Professions, University at Buffalo, Buffalo, NY, USA
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Oliveira A, Ribeiro HG, Silva AC, Silva MD, Sousa JC, Rodrigues CF, Melo LDR, Henriques AF, Sillankorva S. Synergistic Antimicrobial Interaction between Honey and Phage against Escherichia coli Biofilms. Front Microbiol 2017; 8:2407. [PMID: 29276503 PMCID: PMC5727068 DOI: 10.3389/fmicb.2017.02407] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 11/20/2017] [Indexed: 01/21/2023] Open
Abstract
Chronic wounds afford a hostile environment of damaged tissues that allow bacterial proliferation and further wound colonization. Escherichia coli is among the most common colonizers of infected wounds and it is a prolific biofilm former. Living in biofilm communities, cells are protected, become more difficult to control and eradicate, and less susceptible to antibiotic therapy. This work presents insights into the proceedings triggering E. coli biofilm control with phage, honey, and their combination, achieved through standard antimicrobial activity assays, zeta potential and flow cytometry studies and further visual insights sought by scanning electron microscopy and transmission electron microscopy. Two Portuguese honeys (PF2 and U3) with different floral origin and an E. coli-specific phage (EC3a), possessing depolymerase activity, were tested against 24- and 48-h-old biofilms. Synergic and additive effects were perceived in some phage–honey experiments. Combined therapy prompted similar phenomena in biofilm cells, visualized by electron microscopy, as the individual treatments. Honey caused minor membrane perturbations to complete collapse and consequent discharge of cytoplasmic content, and phage completely destroyed cells leaving only vesicle-like structures and debris. Our experiments show that the addition of phage to low honey concentrations is advantageous, and that even fourfold diluted honey combined with phage, presents no loss of antibacterial activity toward E. coli. Portuguese honeys possess excellent antibiofilm activity and may be potential alternative therapeutic agents in biofilm-related wound infection. Furthermore, to our knowledge this is the first study that assessed the impacts of phage–honey combinations in bacterial cells. The synergistic effect obtained was shown to be promising, since the antiviral effect of honey limits the emergence of phage resistant phenotypes.
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Affiliation(s)
- Ana Oliveira
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Henrique G Ribeiro
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Ana C Silva
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Maria D Silva
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Jessica C Sousa
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Célia F Rodrigues
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Luís D R Melo
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Ana F Henriques
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Sanna Sillankorva
- LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho, Braga, Portugal
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Lee CJ, Chen LG, Liang WL, Wang CC. Multiple Activities of Punica granatum Linne against Acne Vulgaris. Int J Mol Sci 2017; 18:ijms18010141. [PMID: 28085116 PMCID: PMC5297774 DOI: 10.3390/ijms18010141] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/11/2016] [Accepted: 12/13/2016] [Indexed: 12/05/2022] Open
Abstract
Acne is a common skin condition with sebum overproduction, hyperkeratosis, Propionibacterium acnes (P. acnes) and Staphylococcus aureus, and inflammation. Punica granatum (pomegranate) is well-known for its anti-inflammatory effects; however, few studies have discussed the anti-acne effects of pomegranate. In this study, we found that pomegranate extract (PG-E) significantly reduced P. acnes-induced edema in Wistar rat ears. Therefore, an evaluation platform using multiple pathogenic mechanisms of acne was established to explore the anti-acne effects of pomegranate. Results showed that PG-E inhibited bacterial growth and lipase activity. Through a bioguided-fractionation-isolation system, four hydrolysable tannins, punicalagin (1), punicalin (2), strictinin A (3), and granatin B (4), were isolated. Compounds 1 and 2 had greater anti-bacterial activities and anti-testosterone-induced HaCaT proliferative effects than the others. Compounds 1, 3, and 4 displayed lipase inhibitory effects. Compound 4 decreased cyclooxygenase-2 expression and downregulated prostaglandin E2 production in heat-killed P. acnes-treated RAW 246.7 cells. In conclusion, PG-E is abundant in hydrolysable tannins that display multiple anti-acne capacities, including anti-bacterial, anti-lipase, anti-keratinocyte proliferation, and anti-inflammatory actions. Hence, PG-E has great potential in the application of anti-acne and skin-care products, and punicalagin (1), the most effective component in PG-E, can be employed as a quality control marker.
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Affiliation(s)
- Chia-Jung Lee
- PhD Program for Clinical Drug Discovery of Chinese Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan.
| | - Lih-Geeng Chen
- Department of Microbiology, Immunology and Biopharmaceuticals, College of Life Sciences, National Chiayi University, Chiayi 60004, Taiwan.
| | - Wen-Li Liang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan.
| | - Ching-Chiung Wang
- PhD Program for Clinical Drug Discovery of Chinese Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan.
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan.
- Orthopedics Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan.
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36
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Affiliation(s)
- R. White
- Professor of Tissue Viability, Director DDRC Wound Care Plymouth
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