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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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Liu Y, Long S, Wang H, Wang Y. Biofilm therapy for chronic wounds. Int Wound J 2024; 21:e14667. [PMID: 38339793 PMCID: PMC10858329 DOI: 10.1111/iwj.14667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/24/2023] [Accepted: 12/29/2023] [Indexed: 02/12/2024] Open
Abstract
Chronic wounds have been a major factor of serious harm to global public health. At present, it is known that almost all chronic wounds contain biofilms, which seriously hinder the healing process. Removal of biofilms can effectively promote the healing of chronic wounds. As the study of wound biofilms deepens, many new treatment methods have emerged, thus bringing revolutionary means for the treatment of chronic wound biofilm. This review summarizes various methods for the treatment of chronic wound biofilm worldwide to provide a theoretical summary and practical basis for the selection of suitable wound biofilm treatment methods in clinical practice.
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Affiliation(s)
- Yang Liu
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People's Hospital of ChengduAffiliated Hospital of Southwest Jiaotong UniversityChengduChina
| | - Shengyong Long
- Department of TraumatologyTongren People's HospitalTongrenChina
| | - Hanfeng Wang
- Plastic Surgery DepartmentXi'an International Medical Center HospitalXi'anChina
| | - Yan Wang
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People's Hospital of ChengduAffiliated Hospital of Southwest Jiaotong UniversityChengduChina
- Medical Research Center, The Third People's Hospital of ChengduAffiliated Hospital of Southwest Jiaotong UniversityChengduChina
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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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Mitchell K, Panicker SS, Adler CL, O’Toole GA, Hixon KR. Antibacterial Efficacy of Manuka Honey-Doped Chitosan-Gelatin Cryogel and Hydrogel Scaffolds in Reducing Infection. Gels 2023; 9:877. [PMID: 37998967 PMCID: PMC10670823 DOI: 10.3390/gels9110877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023] Open
Abstract
Honey has been used for centuries to reduce bacterial infection; Manuka honey (MH) possesses an additional antibacterial agent, Unique Manuka Factor (UMF). However, MH's physical properties challenge delivery to the wound site. Tissue-engineered scaffolds (cryogels/hydrogels) provide a potential vehicle for MH delivery, but effects on bacterial clearance and biofilm formation demand further examination. MH (0, 1, 5, or 10%) was incorporated into both chitosan-gelatin (1:4 ratio; 4%) cryogels and hydrogels. To assess physical changes, all scaffolds were imaged with scanning electron microscopy and subjected to swell testing to quantify pore size and rehydration potential, respectively. As MH concentration increased, both pore size and scaffold swelling capacity decreased. Both bacterial clearance and biofilm formation were also assessed, along with cellular infiltration. Bacterial clearance testing with S. aureus demonstrated that MH cryogels are superior to 0% control, indicating the potential to perform well against Gram-positive bacteria. However, higher concentrations of MH resulted in cell death over time. These results support our hypothesis that MH release from 5% cryogels would induce reduced viability for four bacteria species without compromising scaffold properties. These outcomes assist in the development of a standard of practice for incorporating MH into scaffolds and the evaluation of biofilm reduction.
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Affiliation(s)
- Karina Mitchell
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (K.M.); (S.S.P.); (C.L.A.)
| | - Sreejith S. Panicker
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (K.M.); (S.S.P.); (C.L.A.)
| | - Calista L. Adler
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (K.M.); (S.S.P.); (C.L.A.)
| | | | - Katherine R. Hixon
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (K.M.); (S.S.P.); (C.L.A.)
- Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
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Liang J, Adeleye M, Onyango LA. Combinatorial efficacy of Manuka honey and antibiotics in the in vitro control of staphylococci and their small colony variants. Front Cell Infect Microbiol 2023; 13:1219984. [PMID: 37928190 PMCID: PMC10622673 DOI: 10.3389/fcimb.2023.1219984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/04/2023] [Indexed: 11/07/2023] Open
Abstract
Introduction Staphylococci are among the list of problematic bacteria contributing to the global antibiotic resistance (ABR) crisis. Their ability to adopt the small colony variant (SCV) phenotype, induced by prolonged antibiotic chemotherapy, complicates staphylococcal infection control options. Novel and alternative approaches are needed to tackle staphylococcal infections and curb ABR. Manuka honey (MH), a non-antibiotic alternative is recognized for its unique antibacterial activity based on its methylglyoxal (MGO) component. Methods In this study, MH (MGO 830+) was tested in combination with gentamicin (GEN), rifampicin (RIF), or vancomycin (VA) against staphylococcal wildtype (WT) and SCVs. To our knowledge, there are no current studies in the literature documenting the effects of MH on staphylococcal SCVs. While Staphylococcus aureus is well-studied for its international ABR burden, limited data exists demonstrating the effects of MH on S. epidermidis and S. lugdunensis whose pathogenic relevance and contribution to ABR is also rising. Results & discussion The three staphylococci were most susceptible to RIF (0.06-0.24 μg/ml), then GEN (0.12-0.49 μg/ml), and lastly VA (0.49-0.96 μg/ml). The MICs of MH were 7%, 7-8%, and 6-7% (w/v), respectively. Fractional inhibitory concentration (FIC) evaluations showed that the combined MH + antibiotic effect was either additive (FICI 1-2), or partially synergistic (FICI >0.5-1). While all three antibiotics induced SCVs in vitro, stable SCVs were observed in GEN treatments only. The addition of MH to these GEN-SCV-induction analyses resulted in complete suppression of SCVs (p<0.001) in all three staphylococci, suggesting that MH's antibacterial properties interfered with GEN's SCV induction mechanisms. Moreover, the addition of MH to growth cultures of recovered stable SCVs resulted in the inhibition of SCV growth by at least 99%, indicating MH's ability to prevent subsequent SCV growth. These in vitro analyses demonstrated MH's broad-spectrum capabilities not only in improving WT staphylococci susceptibility to the three antibiotics, but also mitigated the development and subsequent growth of their SCV phenotypes. MH in combination with antibiotics has the potential to not only resensitize staphylococci to antibiotics and consequently require less antibiotic usage, but in instances where prolonged chemotherapy is employed, the development and growth of SCVs would be hampered, providing a better clinical outcome, all of which mitigate ABR.
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Mosaddad SA, Hussain A, Tebyaniyan H. Green Alternatives as Antimicrobial Agents in Mitigating Periodontal Diseases: A Narrative Review. Microorganisms 2023; 11:1269. [PMCID: PMC10220622 DOI: 10.3390/microorganisms11051269] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 06/03/2023] Open
Abstract
Periodontal diseases and dental caries are the most common infectious oral diseases impacting oral health globally. Oral cavity health is crucial for enhancing life quality since it serves as the entranceway to general health. The oral microbiome and oral infectious diseases are strongly correlated. Gram-negative anaerobic bacteria have been associated with periodontal diseases. Due to the shortcomings of several antimicrobial medications frequently applied in dentistry, the lack of resources in developing countries, the prevalence of oral inflammatory conditions, and the rise in bacterial antibiotic resistance, there is a need for reliable, efficient, and affordable alternative solutions for the prevention and treatment of periodontal diseases. Several accessible chemical agents can alter the oral microbiota, although these substances also have unfavorable symptoms such as vomiting, diarrhea, and tooth discoloration. Natural phytochemicals generated from plants that have historically been used as medicines are categorized as prospective alternatives due to the ongoing quest for substitute products. This review concentrated on phytochemicals or herbal extracts that impact periodontal diseases by decreasing the formation of dental biofilms and plaques, preventing the proliferation of oral pathogens, and inhibiting bacterial adhesion to surfaces. Investigations examining the effectiveness and safety of plant-based medicines have also been presented, including those conducted over the past decade.
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Affiliation(s)
- Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran;
| | - Ahmed Hussain
- School of Dentistry, Edmonton Clinic Health Academy, University of Alberta, Edmonton, AB T6G 1C9, Canada
| | - Hamid Tebyaniyan
- Science and Research Branch, Islimic Azade University, Tehran 14878-92855, Iran
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Upadhyay A, Pal D, Kumar A. Combinatorial enzyme therapy: A promising neoteric approach for bacterial biofilm disruption. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Antibacterial and Antibiofilm Effect of Honey in the Prevention of Dental Caries: A Recent Perspective. Foods 2022; 11:foods11172670. [PMID: 36076855 PMCID: PMC9455747 DOI: 10.3390/foods11172670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 12/14/2022] Open
Abstract
The successful application of honey in wound care management has been achieved due to honey’s potent antibacterial effects, characterised by its multifactorial action. Impressive clinical efficacy has ignited its further use in diverse clinical disciplines, including stomatology. Indeed, there is increasing usage of honey in dental medicine as a preventive or therapeutic remedy for some periodontal diseases mainly associated with bacteria, such as dental caries, gingivitis and mucositides. Dental caries is undoubtedly a major oral health problem worldwide, with an increasing tendency of incidence. The purpose of this perspective review is to describe the recent progress in the laboratory and clinical use of honey in the prevention of dental caries, with emphasis on the antibacterial and antibiofilm effects of honey. The role of honey in the cariogenic process is also discussed. In addition, the quality of honey and the urgent in vitro evaluation of its antibacterial/antibiofilm properties before clinical use are highlighted. Findings based on data extracted from laboratory studies demonstrate the pronounced antibacterial effect of different honeys against a number of periodontal pathogens, including Streptococcus mutans. Although the promising antibiofilm effects of honey have been reported mainly against S. mutans, these results are limited to very few studies. From a clinical point of view, honey significantly reduces dental plaque; however, it is not superior to the conventional agent. Despite the positive in vitro results, the clinical effectiveness of honey in the prevention of dental caries remains inconclusive since further robust clinical studies are needed.
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Jiang X, Lin A, Li S, Shi Y, Zhou F, Felix Gomez GG, Gregory RL, Zhang C, Chen S, Huang R. Effects of artificial honey and epigallocatechin-3-gallate on streptococcus pyogenes. BMC Microbiol 2022; 22:207. [PMID: 36028794 PMCID: PMC9419396 DOI: 10.1186/s12866-022-02611-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/04/2022] [Indexed: 12/01/2022] Open
Abstract
Background Streptococcus pyogenes is an important global human pathogen that causes pharyngitis, and antibacterial therapy has become an important part of the overall therapy for pharyngitis. As natural derivatives, honey and green tea are often recommended for patients with pharyngitis in traditional Chinese medicine without experimental theoretical basis on wether the combined effect of honey and green tea on pharyngitis is better than they alone. The aims of this study were to explore the effects of artificial honey (AH) and epigallocatechin-3-gallate (EGCG) on S. pyogenes and elucidate the possible mechanisms, which were investigated using MIC (the minimum inhibitory concentration), FIC (fractional inhibitory concentration) index, growth pattern, biofilm formation and RT-qPCR. Results The MIC of AH on S. pyogenes was 12.5% (v/v) and the MIC of EGCG was 1250 μg/ml. The FIC index of AH and EGCG was 0.5. The planktonic cell growth, growth pattern and biofilm formation assays showed that AH and EGCG mixture had stronger inhibitory effect on S. pyogenes than they alone. RT-qPCR confirmed that the expression of hasA and luxS gene were inhibited by AH and EGCG mixture. Conclusions AH and EGCG mixture can inhibit the planktonic cell growth, biofilm formation and some virulence genes expression of S. pyogenes, better than they alone. The combination of honey and green tea have the potential to treat pharyngitis as natural derivatives, avoiding drug resistance and double infection.
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Affiliation(s)
- Xiaoge Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,Department of Orthodontics Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - An Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shijia Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,Department of Orthodontics Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yangyang Shi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,Department of Endodontic Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Fangjie Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,Department of Endodontic Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | | | - Richard L Gregory
- Department of Oral Biology, School of Dentistry, Indiana University, Indianapolis, USA
| | - Chaoliang Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Song Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China. .,Department of Orthodontics Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Ruijie Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China. .,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China. .,Department of Oral Biology, School of Dentistry, Indiana University, Indianapolis, USA.
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An Overview of Biofilm Formation-Combating Strategies and Mechanisms of Action of Antibiofilm Agents. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081110. [PMID: 35892912 PMCID: PMC9394423 DOI: 10.3390/life12081110] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/19/2022]
Abstract
Biofilm formation on surfaces via microbial colonization causes infections and has become a major health issue globally. The biofilm lifestyle provides resistance to environmental stresses and antimicrobial therapies. Biofilms can cause several chronic conditions, and effective treatment has become a challenge due to increased antimicrobial resistance. Antibiotics available for treating biofilm-associated infections are generally not very effective and require high doses that may cause toxicity in the host. Therefore, it is essential to study and develop efficient anti-biofilm strategies that can significantly reduce the rate of biofilm-associated healthcare problems. In this context, some effective combating strategies with potential anti-biofilm agents, including plant extracts, peptides, enzymes, lantibiotics, chelating agents, biosurfactants, polysaccharides, organic, inorganic, and metal nanoparticles, etc., have been reviewed to overcome biofilm-associated healthcare problems. From their extensive literature survey, it can be concluded that these molecules with considerable structural alterations might be applied to the treatment of biofilm-associated infections, by evaluating their significant delivery to the target site of the host. To design effective anti-biofilm molecules, it must be assured that the minimum inhibitory concentrations of these anti-biofilm compounds can eradicate biofilm-associated infections without causing toxic effects at a significant rate.
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Chhawchharia A, Haines RR, Green KJ, Barnett TC, Bowen AC, Hammer KA. In vitro antibacterial activity of Western Australian honeys, and manuka honey, against bacteria implicated in impetigo. Complement Ther Clin Pract 2022; 49:101640. [PMID: 35868137 DOI: 10.1016/j.ctcp.2022.101640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/07/2022] [Accepted: 07/09/2022] [Indexed: 11/28/2022]
Abstract
Impetigo is a contagious skin disease caused by Staphylococcus aureus and Streptococcus pyogenes. Without treatment, impetigo may be recurrent, develop into severe disease, or have serious, life-threatening sequelae. Standard treatment consists of topical or systemic antibiotic therapy (depending on severity), however, due to antibiotic resistance some therapies are increasingly ineffective. In this study we evaluated the potential for honey as an alternative treatment for impetigo. A broth microdilution assay in 96-well microtitre trays was used to determine the minimum inhibitory concentrations (MICs) of six monofloral honeys (jarrah, marri, red bell, banksia, wandoo, and manuka), a multifloral honey and artificial honey against S. aureus (n = 10), S. pyogenes (n = 10), and coagulase-negative staphylococci (CoNS) (n = 10). The optical density (OD) of all microtitre tray wells was also determined before and after assay incubation to analyse whether sub-MIC growth inhibition occurred. Jarrah, marri, red bell, banksia, and manuka honeys were highly effective at inhibiting S. aureus and CoNS, with MIC50 values ranging from 4 to 8% w/v honey. S. pyogenes was also inhibited by these same honeys, albeit at higher concentrations (8-29% w/v). Wandoo and multifloral honeys had the least antibacterial activity with MICs of >30% (w/v) for all isolates. However, OD data indicated that sub-MIC concentrations of honey were still partially restricting bacterial growth. Our pre-clinical data indicate that honey may be a potential therapeutic agent for the routine treatment of mild impetigo, and we suggest that clinical trials would be appropriate to further investigate this.
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Affiliation(s)
- Ayushi Chhawchharia
- School of Biomedical Sciences, The University of Western Australia, Crawley, 6009, Australia
| | - Robbie R Haines
- School of Biomedical Sciences, The University of Western Australia, Crawley, 6009, Australia; Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), 128 Yanchep Beach Road, Yanchep, 6035, Australia
| | - Kathryn J Green
- School of Biomedical Sciences, The University of Western Australia, Crawley, 6009, Australia; Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), 128 Yanchep Beach Road, Yanchep, 6035, Australia
| | - Timothy C Barnett
- School of Biomedical Sciences, The University of Western Australia, Crawley, 6009, Australia; Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Nedlands, 6009, Australia
| | - Asha C Bowen
- Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Nedlands, 6009, Australia; School of Medicine, The University of Western Australia, Crawley, 6009, Australia; Department of Infectious Diseases, Perth Children's Hospital, Nedlands, 6009, Australia
| | - Katherine A Hammer
- School of Biomedical Sciences, The University of Western Australia, Crawley, 6009, Australia; Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), 128 Yanchep Beach Road, Yanchep, 6035, Australia.
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Hulea A, Obiștioiu D, Cocan I, Alexa E, Negrea M, Neacșu AG, Hulea C, Pascu C, Costinar L, Iancu I, Tîrziu E, Herman V. Diversity of Monofloral Honey Based on the Antimicrobial and Antioxidant Potential. Antibiotics (Basel) 2022; 11:antibiotics11050595. [PMID: 35625239 PMCID: PMC9137981 DOI: 10.3390/antibiotics11050595] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
This study aimed to investigate the antioxidant profile and the antimicrobial activity of four different types of monofloral honey (manuka (MH), brassica rapeseed (BH), acacia (AH), and linden honey (LH)) against some bacterial/fungal ATCC strains and some multidrug-resistant strains isolated from chronic otitis in dogs. For the characterisation of the antioxidant profile of each honey, we extracted the honey samples by hydroalcoholic extraction and analysed them in terms of total polyphenols (TPC), total flavonoids (TFC), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) using the spectrophotometric method. The antimicrobial activity was determined using the microdilution method at concentrations of 10%, 15%, and 20%, with the results expressed in OD (optical density) calculated as BIR% (bacterial inhibition rate)/MIR% (mycelial inhibition rate). The antioxidant characterisation of the analysed honey samples showed the highest antioxidant activity and concentrations of TPC and TFC in MH, followed by LH. MH was proven to be the most effective on most clinical isolates concerning the antimicrobial activity in comparison with BH, AH, and LH. Except for B. cepacia and P. vulgaris, all the clinical isolates were sensitive to the antibacterial activity of honey. Regarding the ATCC strains, MH 10% was the most effective in inhibiting all the strains tested except for P. aeruginosa. In conclusion, the efficacy classification in our study was MH > BH > AH > LH.
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Affiliation(s)
- Anca Hulea
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
| | - Diana Obiștioiu
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
- Correspondence: (D.O.); (I.C.)
| | - Ileana Cocan
- Faculty of Food Engineering, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (E.A.); (M.N.)
- Correspondence: (D.O.); (I.C.)
| | - Ersilia Alexa
- Faculty of Food Engineering, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (E.A.); (M.N.)
| | - Monica Negrea
- Faculty of Food Engineering, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (E.A.); (M.N.)
| | - Alina-Georgeta Neacșu
- Faculty of Agriculture, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300641 Timisoara, Romania;
| | - Călin Hulea
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
| | - Corina Pascu
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
| | - Luminita Costinar
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
| | - Ionica Iancu
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
| | - Emil Tîrziu
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
| | - Viorel Herman
- Faculty of Veterinary Medicine, Banat University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (A.H.); (C.H.); (C.P.); (L.C.); (I.I.); (E.T.); (V.H.)
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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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Tsukatani T, Kuroda R, Kawaguchi T. Screening biofilm eradication activity of ethanol extracts from foodstuffs: potent biofilm eradication activity of glabridin, a major flavonoid from licorice (Glycyrrhiza glabra), alone and in combination with ɛ-poly-L-lysine. World J Microbiol Biotechnol 2022; 38:24. [PMID: 34989883 DOI: 10.1007/s11274-021-03206-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 12/10/2021] [Indexed: 01/18/2023]
Abstract
The ethanol extracts of 155 different foodstuffs containing medicinal plants were investigated for their biofilm eradication activities against pathogenic bacteria. A combined method of a colorimetric microbial viability assay based on reduction of a tetrazolium salt (WST-8) and a biofilm formation technique on the 96-pins of a microtiter plate lid was used to screen the biofilm eradication activities of foodstuffs. The ethanol extracts of licorice (Glycyrrhiza glabra) showed potent biofilm eradication activities against Streptococcus mutans, Staphylococcus aureus, and Porphyromonas gingivalis. Among the antimicrobial constituents in licorice, glabridin had the most potent eradication activities against microbial biofilms. The minimum biofilm eradication concentration of glabridin was 25-50 μg/ml. Furthermore, the combination of glabridin with ɛ-poly-L-lysine, a food additive, could result in broad biofilm eradication activities towards a wide variety of bacteria associated with infection, including Escherichia coli and Pseudomonas aeruginosa.
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Affiliation(s)
- Tadayuki Tsukatani
- Fukuoka Industrial Technology Center, Biotechnology and Food Research Institute, 1465-5 Aikawamachi, Kurume, 839-0861, Japan.
| | - Rieko Kuroda
- Fukuoka Industrial Technology Center, Biotechnology and Food Research Institute, 1465-5 Aikawamachi, Kurume, 839-0861, Japan
| | - Tomoaki Kawaguchi
- Fukuoka Industrial Technology Center, Biotechnology and Food Research Institute, 1465-5 Aikawamachi, Kurume, 839-0861, Japan
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Honey antibacterial activity: A neglected aspect of honey quality assurance as functional food. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Scepankova H, Combarros-Fuertes P, Fresno JM, Tornadijo ME, Dias MS, Pinto CA, Saraiva JA, Estevinho LM. Role of Honey in Advanced Wound Care. Molecules 2021; 26:4784. [PMID: 34443372 PMCID: PMC8398244 DOI: 10.3390/molecules26164784] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 12/14/2022] Open
Abstract
Honey is a natural product rich in several phenolic compounds, enzymes, and sugars with antioxidant, anticarcinogenic, anti-inflammatory, and antimicrobial potential. Indeed, the development of honey-based adhesives for wound care and other biomedical applications are topics being widely investigated over the years. Some of the advantages of the use of honey for wound-healing solutions are the acceleration of dermal repair and epithelialization, angiogenesis promotion, immune response promotion and the reduction in healing-related infections with pathogenic microorganisms. This paper reviews the main role of honey on the development of wound-healing-based applications, the main compounds responsible for the healing capacity, how the honey origin can influence the healing properties, also highlighting promising results in in vitro and in vivo trials. The challenges in the use of honey for wound healing are also covered and discussed. The delivery methodology (direct application, incorporated in fibrous membranes and hydrogels) is also presented and discussed.
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Affiliation(s)
- Hana Scepankova
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (H.S.); (C.A.P.); (J.A.S.)
| | - Patricia Combarros-Fuertes
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, Campus de Vegazana, University of León, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - José María Fresno
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, Campus de Vegazana, University of León, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - María Eugenia Tornadijo
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, Campus de Vegazana, University of León, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - Miguel Sousa Dias
- CIMO, Mountain Research Center, Polytechnic Institute of Bragança, Campus Santa Apolónia, 5301-855 Bragança, Portugal;
| | - Carlos A. Pinto
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (H.S.); (C.A.P.); (J.A.S.)
| | - Jorge A. Saraiva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (H.S.); (C.A.P.); (J.A.S.)
| | - Letícia M. Estevinho
- CIMO, Mountain Research Center, Polytechnic Institute of Bragança, Campus Santa Apolónia, 5301-855 Bragança, Portugal;
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Abstract
LEARNING OBJECTIVES After studying this article, the participant should be able to: 1. Understand the basics of biofilm infection and be able to distinguish between planktonic and biofilm modes of growth. 2. Have a working knowledge of conventional and emerging antibiofilm therapies and their modes of action as they pertain to wound care. 3. Understand the challenges associated with testing and marketing antibiofilm strategies and the context within which these strategies may have effective value. SUMMARY The Centers for Disease Control and Prevention estimate for human infectious diseases caused by bacteria with a biofilm phenotype is 65 percent and the National Institutes of Health estimate is closer to 80 percent. Biofilms are hostile microbial aggregates because, within their polymeric matrix cocoons, they are protected from antimicrobial therapy and attack from host defenses. Biofilm-infected wounds, even when closed, show functional deficits such as deficient extracellular matrix and impaired barrier function, which are likely to cause wound recidivism. The management of invasive wound infection often includes systemic antimicrobial therapy in combination with débridement of wounds to a healthy tissue bed as determined by the surgeon who has no way of visualizing the biofilm. The exceedingly high incidence of false-negative cultures for bacteria in a biofilm state leads to missed diagnoses of wound infection. The use of topical and parenteral antimicrobial therapy without wound débridement have had limited impact on decreasing biofilm infection, which remains a major problem in wound care. Current claims to manage wound biofilm infection rest on limited early-stage data. In most cases, such data originate from limited experimental systems that lack host immune defense. In making decisions on the choice of commercial products to manage wound biofilm infection, it is important to critically appreciate the mechanism of action and significance of the relevant experimental system. In this work, the authors critically review different categories of antibiofilm products, with emphasis on their strengths and limitations as evident from the published literature.
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Affiliation(s)
- Chandan K Sen
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
| | - Sashwati Roy
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
| | - Shomita S Mathew-Steiner
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
| | - Gayle M Gordillo
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
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Maillard JY, Kampf G, Cooper R. Antimicrobial stewardship of antiseptics that are pertinent to wounds: the need for a united approach. JAC Antimicrob Resist 2021; 3:dlab027. [PMID: 34223101 PMCID: PMC8209993 DOI: 10.1093/jacamr/dlab027] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Long before the nature of infection was recognized, or the significance of biofilms in delayed healing was understood, antimicrobial agents were being used in wound care. In the last 70 years, antibiotics have provided an effective means to control wound infection, but the continued emergence of antibiotic-resistant strains and the documented antibiotic tolerance of biofilms has reduced their effectiveness. A range of wound dressings containing an antimicrobial (antibiotic or non-antibiotic compound) has been developed. Whereas standardized methods for determining the efficacy of non-antibiotic antimicrobials in bacterial suspension tests were developed in the early twentieth century, standardized ways of evaluating the efficacy of antimicrobial dressings against microbial suspensions and biofilms are not available. Resistance to non-antibiotic antimicrobials and cross-resistance with antibiotics has been reported, but consensus on breakpoints is absent and surveillance is impossible. Antimicrobial stewardship is therefore in jeopardy. This review highlights these difficulties and in particular the efficacy of current non-antibiotic antimicrobials used in dressings, their efficacy, and the challenges of translating in vitro efficacy data to the efficacy of dressings in patients. This review calls for a unified approach to developing standardized methods of evaluating antimicrobial dressings that will provide an improved basis for practitioners to make informed choices in wound care.
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Affiliation(s)
- Jean-Yves Maillard
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, UK
| | - Günter Kampf
- Institute of Hygiene and Environmental Medicine, University of Greifswald, Germany
| | - Rose Cooper
- School of Sport & Health Sciences, Cardiff Metropolitan University, Cardiff, Wales, UK
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Baliga MS, Rao S, Hegde SK, Rao P, Simon P, George T, Venkatesh P, Baliga-Rao MP, Thilakchand KR. Usefulness of Honey as an Adjunct in the Radiation Treatment for Head and Neck Cancer: Emphasis on Pharmacological and Mechanism/s of Actions. Anticancer Agents Med Chem 2021; 22:20-29. [PMID: 33573581 DOI: 10.2174/1871520621666210126094509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/13/2020] [Accepted: 07/19/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND In the treatment of head and neck cancer (HNC), ionizing radiation is an important modality in achieving curative objectives. However, the effective use of radiation is compromised by the side effects resulting from the damage to the adjacent normal tissue. Preclinical studies carried out in the recent past have shown that the age old dietary agent honey, which also possess myriad medicinal use is beneficial in mitigating diverse radiation-induced side effects like mucositis, xerostomia, fatigue, weight loss and to promote healing of refractory wounds. OBJECTIVE The objective of this memoir is to review the beneficial effects of honey in mitigating radiation-induced side effects in HNC and to emphasize on the underlying mechanism of action for the beneficial effects Methods: Two authors searched Google Scholar, PubMed, Embase, and the Cochrane Library for publications up to December 2019 to assess the ability of honey in reducing the severity of radiation-induced ill effects in the treatment of HNC. Subsequently, the adjunct pharmacological effects and mechanism/s responsible were also searched for and appropriately used to substantiate the underlying mechanism/s of action for the beneficial effects. RESULTS The existing data is suggestive that honey is beneficial in mitigating the radiation-induced mucositis, xerostomia, healing of recalcitrant wounds in radiation exposed regions and multiple pathways mediate the beneficial effects especially, free radical scavenging, antioxidant, wound healing, anticancer, analgesic, anti-inflammatory, anabolic, anti-fatigue and anti-anaemic effects that add additional value to the use of honey as an adjunct in cancer therapy. CONCLUSION For the first time this review addresses the underlying pharmacological effects related to the beneficial effects of honey in radiation-induced damage, and attempts at emphasizes the lacunae that need further studies for optimizing the use of honey as an adjunct in radiotherapy of HNC. The authors suggest that future studies should be directed at understanding the detail molecular mechanisms responsible for the beneficial effects using validated cell culture and animal models of study. Large multi centric clinical trials with standardised honey is also needed to understand the clinical use of honey.
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Affiliation(s)
- Manjeshwar S Baliga
- Research Unit, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | - Suresh Rao
- Radiation Oncology, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | - Sanath K Hegde
- Radiation Oncology, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | - Pratima Rao
- Department of Orodental Pathology, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | - Paul Simon
- Research Unit, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | - Thomas George
- Research Unit, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | - Ponemone Venkatesh
- Research Unit, Mangalore Institute of Oncology, Pumpwell, Mangalore, Karnataka. India
| | | | - Karadka R Thilakchand
- Department of Anesthesiology, Karnataka Institute of Medical Sciences, Hubballi 580022. India
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Kapoor N, Yadav R. Manuka honey: A promising wound dressing material for the chronic nonhealing discharging wounds: A retrospective study. Natl J Maxillofac Surg 2021; 12:233-237. [PMID: 34483582 PMCID: PMC8386265 DOI: 10.4103/njms.njms_154_20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 12/26/2020] [Accepted: 03/12/2021] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES To assess the efficacy and feasibility of topical manuka honey application in chronic nonhealing discharging extraoral wounds. MATERIALS AND METHODS The study includes 15 patients (9 males and 6 females, mean age: 38.06, range: 20-50 years), presenting with the complaint of chronic nonhealing discharging extraoral wounds from January 2018 to January 2020. After wound irrigation with normal saline, manuka honey in conjunction with the antibiotic treatment was directly applied onto the surface of the wound and was then covered by an absorbent layer to contain the honey. Dressings were changed every alternate day for a week till there was complete cessation of pus discharge. Henceforth, the interval between dressings was increased to 1 week subsequently and was continued for 4 weeks. Assessment was done on the basis of discharge and depth of the wound before the procedure and weekly for 4 weeks. RESULTS The average depth of wound as seen at 15 sites after a week was 5.72 mm, and decrease in the average depth of wound seen at the end of the 4th week was 0.88 mm with complete wound epithelization. This was found to be statistically significant (P = 0.0001). No cases were reported with allergy, pain, infection, inflammation, and swelling on 1st, 2nd, 3rd, and 4thweek. CONCLUSION Hence, the use of manuka honey as a wound dressing material in our study has proved to promote the growth of tissues for wound repair, suppress inflammation, and bring about rapid autolytic debridement.
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Affiliation(s)
- Nupur Kapoor
- Department of Dentistry, Zydus Medical College and Hospital, Dahod, Gujarat, India,Address for correspondence: Dr. Nupur Kapoor, Department of Dentistry, Zydus Medical College and Hospital, Behind Bhagini Samaj, Dahod - 389 151, Gujarat, India. E-mail:
| | - Rahul Yadav
- Department of Surgery, Zydus Medical College and Hospital, Dahod, Gujarat, India
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Hu WS, Min Nam D, Kim JS, Koo OK. Synergistic anti-biofilm effects of Brassicaceae plant extracts in combination with proteinase K against Escherichia coli O157:H7. Sci Rep 2020; 10:21090. [PMID: 33273563 PMCID: PMC7712827 DOI: 10.1038/s41598-020-77868-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/03/2020] [Indexed: 02/01/2023] Open
Abstract
Bacteria can form biofilms, complex microbial communities protected from environmental stress, on food contact surfaces. Brassicaceae plant has been shown to contain bioactive compounds with antimicrobial activities. The objective of this study was to evaluate the synergistic effects of Brassicaceae species and proteinase K against E. coli O157:H7 biofilm. We determined the minimum biofilm inhibitory concentration, the fractional inhibitory concentration indexes, and the synergistic inhibitory effect of Raphanus sativus var. longipinnatus, R. sativus, and Brassica oleracea var. acephala extracts with proteinase K on E. coli O157:H7. The biofilm showed a 49% reduction with 2 mg/mL R. sativus. The combination of proteinase K 25 µg/mL significantly increased the effect of 2 mg/mL R. sativus var. longipinnatus and the combined treatment yielded up to 2.68 log reduction on stainless steel coupons. The results showed that the combination of R. sativus var. longipinnatus extract and proteinase K could serve as an anti-biofilm agent with synergistic effects for inhibiting E. coli O157:H7 biofilm on stainless steel surfaces.
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Affiliation(s)
- Wen Si Hu
- Department of Food and Nutrition, Gyeongsang National University, Jinju, Republic of Korea
| | - Da Min Nam
- Department of Food and Nutrition, Gyeongsang National University, Jinju, Republic of Korea
| | - Joo-Sung Kim
- Research Group of Consumer Safety, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
| | - Ok Kyung Koo
- Department of Food and Nutrition, Gyeongsang National University, Jinju, Republic of Korea. .,Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea.
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Al-Kafaween MA, Al-Jamal HAN, Hilmi ABM, Elsahoryi NA, Jaffar N, Zahri MK. Antibacterial properties of selected Malaysian Tualang honey against Pseudomonas aeruginosa and Streptococcus pyogenes. IRANIAN JOURNAL OF MICROBIOLOGY 2020; 12:565-576. [PMID: 33613911 PMCID: PMC7884280 DOI: 10.18502/ijm.v12i6.5031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Tualang honey (TH) is a Malaysian multifloral jungle honey. In recent years, there has been a marked increase in the number of studies published in medical databases regarding its potential health benefits. The study aimed to investigate the effect of TH against Pseudomonas aeruginosa and Streptococcus pyogenes. MATERIALS AND METHODS The effect of TH on both bacteria was investigated using MIC, MBC, growth curve, time-kill curve, scanning electron microscopy (SEM) and RT-qPCR. RESULTS The MIC of TH against P. aeruginosa and S. pyogenes was 18.5% (w/v) and 13% (w/v) respectively and MBC was 25% (w/v) for both bacteria. Spectrophotometric readings of at least 90% inhibition yielded MIC90 values of TH, 18.5% (w/v) and 15% (w/v) for P. aeruginosa and S. pyogenes respectively. A time-kill curve demonstrated a bactericidal with a 4-log reduction estimated within 8 hours. Using SEM, loss of structural integrity and marked changes in cell shape were observed. RT-qPCR analysis showed that TH reduced the pattern of gene expression in both bacteria, with a trend toward reduced expression of the virulence genes of interest. CONCLUSION This study suggests that TH could potentially be used as an alternative therapeutic agent for microbial infection particularly against these two organisms.
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Affiliation(s)
| | - Hamid Ali Nagi Al-Jamal
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | - Abu Bakar Mohd Hilmi
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | - Nour Amin Elsahoryi
- Department of Nutrition, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Norzawani Jaffar
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | - Mohd Khairi Zahri
- Department of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
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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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Enan G, Al-Mohammadi AR, Mahgoub S, Abdel-Shafi S, Askar E, Ghaly MF, Taha MA, El-Gazzar N. Inhibition of Staphylococcus aureus LC554891 by Moringa oleifera Seed Extract either Singly or in Combination with Antibiotics. Molecules 2020; 25:E4583. [PMID: 33036497 PMCID: PMC7582841 DOI: 10.3390/molecules25194583] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/02/2020] [Accepted: 10/03/2020] [Indexed: 11/16/2022] Open
Abstract
Bacterial outbreaks caused by Staphylococcus aureus (S. aureus) are interesting due to the existence of multidrug resistant (MDR) isolates. Therefore, there is a need to develop novel ways to control such MDR S. aureus. In this study, some natural agents such as honey bee (HB), extracts of either Moringa oleifera seeds (MSE), or leaves (MLE) and essential oils of garlic, clove, and moringa were studied for their inhibitory activity against this S. aureus pathogen. About 100 food samples including beef luncheon (n = 25), potato chips (n = 50), and corn flakes (n = 25) were investigated for possible pollution with the S. aureus bacteria. The isolated bacteria suspected to belong S. aureus that grew well onto Baird-Parker agar (Oxoid) and shiny halo zones and positive coagulase reaction were selected and identified by API-Kits; all of them that were approved belong to S. aureus (18 strains). The sensitivity of the obtained 18 S. aureus bacterial strains to 12 antibiotics were evaluated; all of them were resistant to ofloxacin; however, other antibiotics tested showed variable results. Interestingly, the S. aureus No. B3 isolated from beef luncheon was resistant to10 antibiotics out of 12 ones tested. Multiple antibiotic resistance index (MAR) of this S. aureus strain was about 83.3%. Therefore, its identification was confirmed by sequencing of a 16S rRNA gene which approved a successful biochemical identification carried out by API Kits and such strain was designated S. aureus LC 554891. The genome of such strain appeared to contain mecA gene encoding methicillin resistance; it was found to contain hla, hlb, tsst-1, and finbA that encode α-blood hemolysis, β-blood hemolysis, toxic shock syndrome gene, and fibrinogen-binding protein gene, respectively. In addition, the virulence factors viz. sea; seb; sec encoding enterotoxins were detected in the DNA extracted from S. aureus B3 strain. Aqueous extract of Moringa oleifera seeds (MSE) showed inhibitory activity against S. aureus LC 554891 better than that obtained by tetracycline, essential oils or HB. Minimum inhibitory concentration (MIC) of MSE was 20µg/mL. Instrumental analysis of MSE showed 14 bioactive chemical compounds. Combinations of both MSE and tetracycline showed distinctive inhibitory activity against S. aureus LC 554891 than that obtained by either tetracycline or MSE singly.
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Affiliation(s)
- Gamal Enan
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (E.A.); (M.F.G.); (M.A.T.); (N.E.-G.)
| | - Abdul-Raouf Al-Mohammadi
- Department of Sciences, King Khalid Military Academy, P.O. Box 22140, Riyadh 11495, Saudi Arabia;
| | - Samir Mahgoub
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt;
| | - Seham Abdel-Shafi
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (E.A.); (M.F.G.); (M.A.T.); (N.E.-G.)
| | - Eman Askar
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (E.A.); (M.F.G.); (M.A.T.); (N.E.-G.)
| | - Mohamed F. Ghaly
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (E.A.); (M.F.G.); (M.A.T.); (N.E.-G.)
| | - Mohamed A. Taha
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (E.A.); (M.F.G.); (M.A.T.); (N.E.-G.)
| | - Nashwa El-Gazzar
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (E.A.); (M.F.G.); (M.A.T.); (N.E.-G.)
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25
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A Al-Kafaween M, Mohd Hilmi AB, A Nagi Al-Jamal H, A Elsahoryi N, Jaffar N, Khairi Zahri M. Pseudomonas Aeruginosa and Streptococcus Pyogenes Exposed to Malaysian Trigona Honey In Vitro Demonstrated Downregulation of Virulence Factor. IRANIAN JOURNAL OF BIOTECHNOLOGY 2020; 18:e2542. [PMID: 34056021 PMCID: PMC8148639 DOI: 10.30498/ijb.2020.2542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Honey has been known as a traditional medicine for centuries with its antibacterial properties. It is considered one of the most enduring substances used in wound management. Objectives This study aimed to: (i) evaluate the effects of Malaysian Trigona honey on bacterial structure and (ii) assess the anti-virulence potential of this honey by examining their impacts on the expression of selected genes (involved in stress survival and biofilm formation) in a test organism. Materials and Methods Trigona honey's impacts on the bacterial structure (cell morphology) and the expression profiles of select Pseudomonas Aeruginosa and Streptococcus Pyogenes genes were examined using scanning electron microscopy (SEM) and real-time PCR (RT-qPCR) analysis, respectively. Results SEM showed that the decreased cell density deformed, disrupted, and damaged cells for both bacteria. RT-qPCR showed that the expression of fleN, fleQ, and fleR genes of P.aeruginosa were decreased, 4.26-fold, 3.80-fold and 2.66- fold respectively. In addition, scpA, ftsY, and emm13 of S.pyogenes were decreased, 2.87-fold, 3.24-fold, and 4.65-fold respectively. Conclusion Our results indicate that Trigona honey may be an effective inhibitor and virulence modulator of P. aeruginosa and S. pyogenes via multiple molecular targets. This deduction needs to be investigated in vivo.
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Affiliation(s)
| | - Abu Bakar Mohd Hilmi
- Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | | | - Nour A Elsahoryi
- Department of Nutrition /Faculty of Pharmacy and Medical Sciences/University of Petra/Amman/Jordan
| | - Norzawani Jaffar
- Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
| | - Mohd Khairi Zahri
- Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Terengganu, Malaysia
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26
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Mokhtar JA, McBain AJ, Ledder RG, Binsuwaidan R, Rimmer V, Humphreys GJ. Exposure to a Manuka Honey Wound Gel Is Associated With Changes in Bacterial Virulence and Antimicrobial Susceptibility. Front Microbiol 2020; 11:2036. [PMID: 32973735 PMCID: PMC7466559 DOI: 10.3389/fmicb.2020.02036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/31/2020] [Indexed: 11/13/2022] Open
Abstract
The use of manuka honey for the topical treatment of wounds has increased worldwide owing to its broad spectrum of activity towards bacteria in both planktonic and biofilm growth modes. Despite this, the potential consequences of bacterial exposure to manuka honey, as may occur during the treatment of chronic wounds, are not fully understood. Here, we describe changes in antimicrobial susceptibility and virulence in a panel of bacteria, including wound isolates, following repeated exposure (ten passages) to sub-inhibitory concentrations of a manuka honey based wound gel. Changes in antibiotic sensitivity above 4-fold were predominantly related to increased vancomycin sensitivity in the staphylococci. Interestingly, Staphylococcus epidermidis displayed phenotypic resistance to erythromycin following passaging, with susceptibility profiles returning to baseline in the absence of further honey exposure. Changes in susceptibility to the tested wound gel were moderate (≤ 1-fold) when compared to the respective parent strain. In sessile communities, increased biofilm eradication concentrations over 4-fold occurred in a wound isolate of Pseudomonas aeruginosa (WIBG 2.2) as evidenced by a 7-fold reduction in gentamicin sensitivity following passaging. With regards to pathogenesis, 4/8 bacteria exhibited enhanced virulence following honey wound gel exposure. In the pseudomonads and S. epidermidis, this occurred in conjunction with increased haemolysis and biofilm formation, whilst P. aeruginosa also exhibited increased pyocyanin production. Where virulence attenuation was noted in a passaged wound isolate of S. aureus (WIBG 1.6), this was concomitant to delayed coagulation and reduced haemolytic potential. Overall, passaging in the presence of a manuka honey wound gel led to changes in antimicrobial sensitivity and virulence that varied between test bacteria.
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Affiliation(s)
- Jawahir A Mokhtar
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester, United Kingdom.,Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Andrew J McBain
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Ruth G Ledder
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Reem Binsuwaidan
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Victoria Rimmer
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Gavin J Humphreys
- Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
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27
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Frydman GH, Olaleye D, Annamalai D, Layne K, Yang I, Kaafarani HMA, Fox JG. Manuka honey microneedles for enhanced wound healing and the prevention and/or treatment of Methicillin-resistant Staphylococcus aureus (MRSA) surgical site infection. Sci Rep 2020; 10:13229. [PMID: 32764604 PMCID: PMC7414039 DOI: 10.1038/s41598-020-70186-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/24/2020] [Indexed: 01/01/2023] Open
Abstract
Manuka honey (MH) is currently used as a wound treatment and suggested to be effective in Methicillin-resistant Staphylococcus aureus (MRSA) elimination. We sought to optimize the synthesis of MH microneedles (MHMs) while maintaining the MH therapeutic effects. MHMs were synthesized using multiple methods and evaluated with in vitro assays. MHMs demonstrated excellent bactericidal activity against MRSA at concentrations ≥ 10% of honey, with vacuum-prepared honey appearing to be the most bactericidal, killing bacterial concentrations as high as 8 × 107 CFU/mL. The wound-healing assay demonstrated that, at concentrations of 0.1%, while the cooked honey had incomplete wound closure, the vacuum-treated honey trended towards faster wound closure. In this study, we demonstrate that the method of MHM synthesis is crucial to maintaining MH properties. We optimized the synthesis of MHMs and demonstrated their potential utility in the treatment of MRSA infections as well as in wound healing. This is the first report of using MH as a substrate for the formation of dissolvable microneedles. This data supports the need for further exploration of this new approach in a wound-healing model and opens the door for the future use of MH as a component of microneedle scaffolds.
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Affiliation(s)
- Galit H Frydman
- Division of Comparative Medicine and Division of Biomedical Engineering, Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, 3rd Floor Rm 383, Cambridge, MA, 02139, USA. .,BioMEMs Resource Center, Massachusetts General Hospital, Charlestown, MA, USA. .,Division of Trauma, Emergency Surgery & Surgical Critical Care and Department of Surgery, Massachusetts General Hospital, Boston, MA, USA.
| | - David Olaleye
- Division of Comparative Medicine and Division of Biomedical Engineering, Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, 3rd Floor Rm 383, Cambridge, MA, 02139, USA.,BioMEMs Resource Center, Massachusetts General Hospital, Charlestown, MA, USA
| | - Damodaran Annamalai
- Division of Comparative Medicine and Division of Biomedical Engineering, Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, 3rd Floor Rm 383, Cambridge, MA, 02139, USA
| | - Kim Layne
- Division of Comparative Medicine and Division of Biomedical Engineering, Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, 3rd Floor Rm 383, Cambridge, MA, 02139, USA
| | - Illina Yang
- Division of Comparative Medicine and Division of Biomedical Engineering, Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, 3rd Floor Rm 383, Cambridge, MA, 02139, USA
| | - Haytham M A Kaafarani
- Division of Trauma, Emergency Surgery & Surgical Critical Care and Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - James G Fox
- Division of Comparative Medicine and Division of Biomedical Engineering, Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, 3rd Floor Rm 383, Cambridge, MA, 02139, USA
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28
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Characterizing the Mechanism of Action of an Ancient Antimicrobial, Manuka Honey, against Pseudomonas aeruginosa Using Modern Transcriptomics. mSystems 2020; 5:5/3/e00106-20. [PMID: 32606022 PMCID: PMC7329319 DOI: 10.1128/msystems.00106-20] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Manuka honey has broad-spectrum antimicrobial activity, and unlike traditional antibiotics, resistance to its killing effects has not been reported. However, its mechanism of action remains unclear. Here, we investigated the mechanism of action of manuka honey and its key antibacterial components using a transcriptomic approach in a model organism, Pseudomonas aeruginosa We show that no single component of honey can account for its total antimicrobial action, and that honey affects the expression of genes in the SOS response, oxidative damage, and quorum sensing. Manuka honey uniquely affects genes involved in the explosive cell lysis process and in maintaining the electron transport chain, causing protons to leak across membranes and collapsing the proton motive force, and it induces membrane depolarization and permeabilization in P. aeruginosa These data indicate that the activity of manuka honey comes from multiple mechanisms of action that do not engender bacterial resistance.IMPORTANCE The threat of antimicrobial resistance to human health has prompted interest in complex, natural products with antimicrobial activity. Honey has been an effective topical wound treatment throughout history, predominantly due to its broad-spectrum antimicrobial activity. Unlike traditional antibiotics, honey-resistant bacteria have not been reported; however, honey remains underutilized in the clinic in part due to a lack of understanding of its mechanism of action. Here, we demonstrate that honey affects multiple processes in bacteria, and this is not explained by its major antibacterial components. Honey also uniquely affects bacterial membranes, and this can be exploited for combination therapy with antibiotics that are otherwise ineffective on their own. We argue that honey should be included as part of the current array of wound treatments due to its effective antibacterial activity that does not promote resistance in bacteria.
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29
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Ankley LM, Monteiro MP, Camp KM, O'Quinn R, Castillo AR. Manuka honey chelates iron and impacts iron regulation in key bacterial pathogens. J Appl Microbiol 2019; 128:1015-1024. [PMID: 31782867 DOI: 10.1111/jam.14534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/05/2019] [Accepted: 11/26/2019] [Indexed: 12/21/2022]
Abstract
AIM The aim of this study was to test the hypothesis that Manuka honey (MH) chelates iron and promotes an iron-limiting environment, which contributes to its antimicrobial activity. METHODS AND RESULTS Employing a ferrozine-based assay, we observed that MH is an iron chelator that depletes iron from solution. Siderophores are small molecules that bind ferric iron (III) with high affinity and their levels are upregulated by bacteria under iron-limiting conditions. We demonstrated by quantitating siderophore production that Escherichia coli and Pseudomonas aeruginosa treated with MH sub-minimum inhibitory concentrations (sub-MIC) experience an iron-limiting environment and increase siderophore production. In addition, supplementation with ferrous iron (II) significantly increased growth of E. coli, Staphylococcus aureus and P. aeruginosa cultured at their MH MIC above that observed in nonsupplemented controls. By contrast, supplementation with ferric iron (III) significantly increased growth for only E. coli and P. aeruginosa, above their nonsupplemented controls. CONCLUSIONS Manuka honey chelates iron, thereby generating an iron-limiting environment for E. coli and P. aeruginosa, and to a lesser extent S. aureus, which contributes to its antimicrobial properties. SIGNIFICANCE AND IMPACT OF THE STUDY Our work demonstrates that MH-induced iron chelation is an antimicrobial mechanism that differentially impacts the bacterial species tested here. Iron chelation affects multiple diverse physiological processes in bacteria and would contribute to the lack of bacterial resistance to MH. Iron metabolism is tightly regulated; bacteria require this essential nutrient for survival, but in excess it is toxic. Additional exploration of MH's iron chelation mechanism will facilitate its future use in mainstream medicine.
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Affiliation(s)
- L M Ankley
- Department of Biology, Eastern Washington University, Cheney, WA, USA
| | - M P Monteiro
- Department of Biology, Eastern Washington University, Cheney, WA, USA
| | - K M Camp
- Department of Biology, Eastern Washington University, Cheney, WA, USA
| | - R O'Quinn
- Department of Biology, Eastern Washington University, Cheney, WA, USA
| | - A R Castillo
- Department of Biology, Eastern Washington University, Cheney, WA, USA
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30
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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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31
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Lu J, Cokcetin NN, Burke CM, Turnbull L, Liu M, Carter DA, Whitchurch CB, Harry EJ. Honey can inhibit and eliminate biofilms produced by Pseudomonas aeruginosa. Sci Rep 2019; 9:18160. [PMID: 31796774 PMCID: PMC6890799 DOI: 10.1038/s41598-019-54576-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 11/12/2019] [Indexed: 01/22/2023] Open
Abstract
Chronic wound treatment is becoming increasingly difficult and costly, further exacerbated when wounds become infected. Bacterial biofilms cause most chronic wound infections and are notoriously resistant to antibiotic treatments. The need for new approaches to combat polymicrobial biofilms in chronic wounds combined with the growing antimicrobial resistance crisis means that honey is being revisited as a treatment option due to its broad-spectrum antimicrobial activity and low propensity for bacterial resistance. We assessed four well-characterised New Zealand honeys, quantified for their key antibacterial components, methylglyoxal, hydrogen peroxide and sugar, for their capacity to prevent and eradicate biofilms produced by the common wound pathogen Pseudomonas aeruginosa. We demonstrate that: (1) honey used at substantially lower concentrations compared to those found in honey-based wound dressings inhibited P. aeruginosa biofilm formation and significantly reduced established biofilms; (2) the anti-biofilm effect of honey was largely driven by its sugar component; (3) cells recovered from biofilms treated with sub-inhibitory honey concentrations had slightly increased tolerance to honey; and (4) honey used at clinically obtainable concentrations completely eradicated established P. aeruginosa biofilms. These results, together with their broad antimicrobial spectrum, demonstrate that manuka honey-based wound dressings are a promising treatment for infected chronic wounds, including those with P. aeruginosa biofilms.
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Affiliation(s)
- Jing Lu
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Nural N Cokcetin
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Catherine M Burke
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Lynne Turnbull
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Michael Liu
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Dee A Carter
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, 2006, Australia
| | - Cynthia B Whitchurch
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Elizabeth J Harry
- The ithree institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
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32
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Sindi A, Chawn MVB, Hernandez ME, Green K, Islam MK, Locher C, Hammer K. Anti-biofilm effects and characterisation of the hydrogen peroxide activity of a range of Western Australian honeys compared to Manuka and multifloral honeys. Sci Rep 2019; 9:17666. [PMID: 31776432 PMCID: PMC6881396 DOI: 10.1038/s41598-019-54217-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022] Open
Abstract
The antibacterial activity of honeys derived from the endemic flora of the southwest corner of Western Australia, including the trees Jarrah (Eucalyptus marginata) and Marri (Corymbia calophylla), remains largely unexplored. Investigation of these honeys showed minimum inhibitory concentrations (MICs) of 6.7-28.0% (w/v) against Gram positive and negative bacteria. Honey solutions showed enhanced antibacterial activity after hydrogen peroxide was allowed to accumulate prior to testing, with a mean MIC after accumulation of 14.3% compared to 17.4% before accumulation. Antibacterial activity was reduced after treatment with catalase enzyme, with a mean MIC of 29.4% with catalase compared to 15.2% without catalase. Tests investigating the role of the Gram negative outer membrane in honey susceptibility revealed increases in activity after destabilisation of the outer membrane. Honeys reduced both the formation of biofilm and the production of bacterial pigments, which are both regulated by quorum sensing. However, these reductions were closely correlated with global growth inhibition. Honey applied to existing biofilms resulted in decreased metabolic activity and minor decreases in viability. These results enhance our understanding of the mechanisms of antibacterial action of Jarrah and Marri honeys, and provide further support for the use of honey in the treatment of infected wounds.
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Affiliation(s)
- Azhar Sindi
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Moses Van Bawi Chawn
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Magda Escorcia Hernandez
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Kathryn Green
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia.,The Cooperative Research Centre for Honey Bee Products Limited, Western Australia, Australia
| | - Md Khairul Islam
- The Cooperative Research Centre for Honey Bee Products Limited, Western Australia, Australia.,School of Allied Health, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Cornelia Locher
- The Cooperative Research Centre for Honey Bee Products Limited, Western Australia, Australia.,School of Allied Health, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Katherine Hammer
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia. .,The Cooperative Research Centre for Honey Bee Products Limited, Western Australia, Australia.
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33
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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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34
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Sharahi JY, Azimi T, Shariati A, Safari H, Tehrani MK, Hashemi A. Advanced strategies for combating bacterial biofilms. J Cell Physiol 2019; 234:14689-14708. [PMID: 30693517 DOI: 10.1002/jcp.28225] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/16/2019] [Indexed: 01/24/2023]
Abstract
Biofilms are communities of microorganisms that are formed on and attached to living or nonliving surfaces and are surrounded by an extracellular polymeric material. Biofilm formation enjoys several advantages over the pathogens in the colonization process of medical devices and patients' organs. Unlike planktonic cells, biofilms have high intrinsic resistance to antibiotics and sanitizers, and overcoming them is a significant problematic challenge in the medical and food industries. There are no approved treatments to specifically target biofilms. Thus, it is required to study and present innovative and effective methods to combat a bacterial biofilm. In this review, several strategies have been discussed for combating bacterial biofilms to improve healthcare, food safety, and industrial process.
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Affiliation(s)
- Javad Yasbolaghi Sharahi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Taher Azimi
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Aref Shariati
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Safari
- Health Promotion Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Melika Khanzadeh Tehrani
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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35
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Ooi ML, Jothin A, Bennett C, Ooi EH, Vreugde S, Psaltis AJ, Wormald P. Manuka honey sinus irrigations in recalcitrant chronic rhinosinusitis: phase 1 randomized, single‐blinded, placebo‐controlled trial. Int Forum Allergy Rhinol 2019; 9:1470-1477. [DOI: 10.1002/alr.22423] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/24/2019] [Accepted: 08/06/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Mian Li Ooi
- Department of Surgery–Otolaryngology, Head and Neck SurgeryBasil Hetzel Institute for Translational Health Research, The University of Adelaide Adelaide SA Australia
| | - Arvind Jothin
- Department of Surgery–Otolaryngology, Head and Neck SurgeryBasil Hetzel Institute for Translational Health Research, The University of Adelaide Adelaide SA Australia
| | - Catherine Bennett
- Department of Surgery–Otolaryngology, Head and Neck SurgeryBasil Hetzel Institute for Translational Health Research, The University of Adelaide Adelaide SA Australia
| | - Eng H. Ooi
- Department of Otolaryngology–Head and Neck SurgeryFlinders Medical Centre and Flinders University Bedford Park Adelaide SA Australia
| | - Sarah Vreugde
- Department of Surgery–Otolaryngology, Head and Neck SurgeryBasil Hetzel Institute for Translational Health Research, The University of Adelaide Adelaide SA Australia
| | - Alkis J. Psaltis
- Department of Surgery–Otolaryngology, Head and Neck SurgeryBasil Hetzel Institute for Translational Health Research, The University of Adelaide Adelaide SA Australia
| | - Peter‐John Wormald
- Department of Surgery–Otolaryngology, Head and Neck SurgeryBasil Hetzel Institute for Translational Health Research, The University of Adelaide Adelaide SA Australia
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Shan Y. Medicinal honey in clinical practice: viable alternative or useful adjunct in wound care management? ACTA ACUST UNITED AC 2019; 28:S23-S30. [DOI: 10.12968/bjon.2019.28.12.s23] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In light of concerns raised about antimicrobial resistance, especially in hospitals, and the rise in bacteria that are resistant to antibiotics scientists are examining alternative sources and strategies to combat infection. Among the plethora of complementary medicines now being considered is honey, particularly manuka honey. Medicinal honey is a relatively new label given to some types of honey that have been shown to be effective antimicrobial agents in in vitro studies. Large-scale clinical trials are yet to be conducted but there is considerable interest and numerous case studies that demonstrate the benefits of medicinal honey, especially in wound healing.
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Affiliation(s)
- Yaso Shan
- Medical Herbalist and Lecturer, Vinings Natural Health Centre, Haywards Heath
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Roberts AEL, Powell LC, Pritchard MF, Thomas DW, Jenkins RE. Anti-pseudomonad Activity of Manuka Honey and Antibiotics in a Specialized ex vivo Model Simulating Cystic Fibrosis Lung Infection. Front Microbiol 2019; 10:869. [PMID: 31105667 PMCID: PMC6491927 DOI: 10.3389/fmicb.2019.00869] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 04/04/2019] [Indexed: 01/22/2023] Open
Abstract
Pseudomonas aeruginosa causes problematic chronic lung infections in those suffering from cystic fibrosis. This is due to its antimicrobial resistance mechanisms and its ability to form robust biofilm communities with increased antimicrobial tolerances. Using novel antimicrobials or repurposing current ones is required in order to overcome these problems. Manuka honey is a natural antimicrobial agent that has been used for many decades in the treatment of chronic surface wounds with great success, particularly those infected with P. aeruginosa. Here we aim to determine whether the antimicrobial activity of manuka honey could potentially be repurposed to inhibit pulmonary P. aeruginosa infections using two ex vivo models. P. aeruginosa isolates (n = 28) from an international panel were tested for their susceptibility to manuka honey and clinically relevant antibiotics (ciprofloxacin, ceftazidime, and tobramycin), alone and in combination, using conventional antimicrobial susceptibility testing (AST). To increase clinical applicability, two ex vivo porcine lung (EVPL) models (using alveolar and bronchiolar tissue) were used to determine the anti-biofilm effects of manuka honey alone and in combination with antibiotics. All P. aeruginosa isolates were susceptible to manuka honey, however, varying incidences of resistance were seen against antibiotics. The combination of sub-inhibitory manuka honey and antibiotics using conventional AST had no effect on activity against the majority of isolates tested. Using the two ex vivo models, 64% (w/v) manuka honey inhibited many of the isolates where abnormally high concentrations of antibiotics could not. Typically, combinations of both manuka honey and antibiotics had increased antimicrobial activity. These results highlight the potential of manuka honey as a future antimicrobial for the treatment of pulmonary P. aeruginosa isolates, clearing potential infection reservoirs within the upper airway.
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Affiliation(s)
- Aled E L Roberts
- Department of Biomedical Sciences, Cardiff School of Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom.,Swansea University Medical School, Swansea University, Swansea, United Kingdom
| | - Lydia C Powell
- School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
| | - Manon F Pritchard
- School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
| | - David W Thomas
- School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
| | - Rowena E Jenkins
- Department of Biomedical Sciences, Cardiff School of Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom.,Swansea University Medical School, Swansea University, Swansea, United Kingdom
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Jyothi JS, Putty K, Reddy YN, Dhanalakshmi K, Umair MAH. Antagonistic effect of ursolic acid on Staphylococcal biofilms. Vet World 2018; 11:1440-1444. [PMID: 30532499 PMCID: PMC6247876 DOI: 10.14202/vetworld.2018.1440-1444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 09/05/2018] [Indexed: 11/16/2022] Open
Abstract
Aim The present study was carried out to study the effect of ursolic acid (UA) as a potential anti-biofilm agent in dispersing the biofilm generated by Staphylococcus aureus isolated from milk samples of crossbred dairy cows on the day of drying. Further, in the S. aureus isolates, the presence of intracellular adherence gene locus involved in biofilm production (icaD) was investigated. Materials and Methods A total of 50 S. aureus strains were isolated over a period of 3 months from 200 milk samples collected from crossbred dairy cows on the day of drying. These isolates were subjected for biofilm detection by Congo red agar (CRA), microtiter plate assay (MTP), and polymerase chain reaction specific for icaD gene. The antagonistic effect of biofilm formation by UA was studied using different concentrations (30 µg/ml and 60 µg/ml) of UA and compared with the control group. Results Among the 50 S. aureus subjected for biofilm detection, 34 and 40 isolates were detected as biofilm agents by CRA and MTP methods, respectively. The in vitro studies on the effect of UA in inhibiting biofilm formation by S. aureus using MTP assay showed 71.5% and 48.6% inhibition at UA concentrations of 60 µg/ml and 30 µg/ml, respectively, with a significant difference (p<0.05) between the treated and untreated isolates, which was further evident by scanning electron microscopy. Interestingly, the isolates that were tested to be resistant through Antibiotic Sensitivity Test to commonly used antibiotics were found to be sensitive to all the tested antibiotics following UA treatment at both the tested concentrations. Furthermore, molecular detection of icaD gene for biofilm detection revealed that all the isolates that were positive by MTP had icaD gene. Conclusion Increased incidence of biofilm agents in dairy infections must be considered as an alarming situation. UA treatment significantly enhanced the sensitivity of the microbial pathogens to commonly used antibiotics. Hence, attention must be paid toward implementation of new strategies such as therapeutic regimes with a combination of antibiotic and anti-biofilm agents for effective treatment of infections in dairy farms.
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Affiliation(s)
- J Shiva Jyothi
- Departments of Veterinary Microbiology, and Veterinary Biotechnology, College of Veterinary Science, P. V. Narsimha Rao Telangana Veterinary University, Rajendra Nagar, Hyderabad, Telangana, India
| | - Kalyani Putty
- Departments of Veterinary Microbiology, and Veterinary Biotechnology, College of Veterinary Science, P. V. Narsimha Rao Telangana Veterinary University, Rajendra Nagar, Hyderabad, Telangana, India
| | - Y Narasimha Reddy
- Departments of Veterinary Microbiology, and Veterinary Biotechnology, College of Veterinary Science, P. V. Narsimha Rao Telangana Veterinary University, Rajendra Nagar, Hyderabad, Telangana, India
| | - K Dhanalakshmi
- Departments of Veterinary Microbiology, and Veterinary Biotechnology, College of Veterinary Science, P. V. Narsimha Rao Telangana Veterinary University, Rajendra Nagar, Hyderabad, Telangana, India
| | - M A Hannan Umair
- Departments of Veterinary Microbiology, and Veterinary Biotechnology, College of Veterinary Science, P. V. Narsimha Rao Telangana Veterinary University, Rajendra Nagar, Hyderabad, Telangana, India
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Abel SDA, Dadhwal S, Gamble AB, Baird SK. Honey reduces the metastatic characteristics of prostate cancer cell lines by promoting a loss of adhesion. PeerJ 2018; 6:e5115. [PMID: 30002964 PMCID: PMC6034594 DOI: 10.7717/peerj.5115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/06/2018] [Indexed: 12/21/2022] Open
Abstract
Honey has been shown to have a range of therapeutic effects in humans, with anti-inflammatory and anti-bacterial effects among those previously characterised. Here, we examine the possibility of New Zealand thyme, manuka and honeydew honeys, and their major sugar and phenolic components, reducing the development of metastatic cancer. Their activity was examined in vitro, in PC3 and DU145 prostate cancer cell lines, through measuring the compounds’ effects on the metastatic characteristics of migration, invasion and adhesion. First, the phenolic compounds gallic acid, caffeic acid, quercetin, kaempferol and chrysin were quantified in the honeys using high performance liquid chromatography, and found in nanomolar concentrations. In a Boyden chamber-based migration assay, non-toxic concentrations of thyme and honeydew honeys reduced cell migration by 20%, and all phenolic compounds except caffeic acid also lowered migration, although a mixture of only the sugars found in honey had no effect. All of the honeys, phenolics and the sugar-only mixture reduced invasive movement of cells through extracellular matrix by up to 75%. Most notably, each of the three honeys and the sugar-only mixture reduced cell adhesion to collagen I by 90%. With the exception of quercetin, phenolic compounds did not reduce adhesion. Therefore, honey and its sugar and phenolic components can lower the metastatic properties of cancer cells, and may do this by preventing effective cell adhesion to the extracellular matrix. The sugars and phenol compounds of honey are much more effective in combination than individually.
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Affiliation(s)
- Sean D A Abel
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | - Sumit Dadhwal
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Allan B Gamble
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Sarah K Baird
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
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Sinha S, Prakash A, Sehgal R, Medhi B. Comparative effect of manuka honey on anaerobic parasitic protozoans with standard drug therapy under in vitro conditions: A preliminary study. Indian J Pharmacol 2018; 50:197-203. [PMID: 30505056 PMCID: PMC6234710 DOI: 10.4103/ijp.ijp_227_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/28/2018] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND From the past five decades, metronidazole and tinidazole have been used for treating nonresistant and resistant giardiasis and trichomoniasis. However, due to the occurrence of drug resistance to standard therapy idealizes us to explore some additional therapies which is cost-effective, easy accessibility, and natural which has least side effects. Manuka honey obtained from Leptospermum scoparium is well known for its antibacterial and wound healing properties and is thought to be a better option as an additional therapy. OBJECTIVE The present study was conducted to find out the effect of manuka honey on anaerobic protozoans that includes Giardia and Trichomonas under in vitro conditions in comparison to metronidazole and tinidazole. MATERIALS AND METHODS Axenic culture of Giardia lamblia strain Portland 1 and Trichomonas vaginalis strain 413 was used for drug sensitivity assay to tinidazole, metronidazole, and manuka honey with the highest concentration of 17.1 μg/ml, 24.7 μg/ml, and 50%v/v by using (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, a tetrazole). For this, head-to-head comparison has been done and IC 50 of the standard drug as well as manuka honey was calculated. RESULTS The result showed that percentage inhibition on the growth of both the parasites is dependent on concentration as well as exposure time of the drug. The calculated IC 50 was found to be 5.6%v/v and 1.5%v/v for manuka honey with respect to G. lamblia and T. vaginalis. CONCLUSION The present study suggests that manuka honey can be used as an additional therapy for the patient with giardiasis or trichomoniasis. However, in vivo study in the near future will elucidate more about the effectiveness of honey in treating parasitic infections.
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Affiliation(s)
- Shweta Sinha
- Department of Medical Parasitology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ajay Prakash
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rakesh Sehgal
- Department of Medical Parasitology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Bikash Medhi
- Department of Medical Parasitology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Morroni G, Alvarez-Suarez JM, Brenciani A, Simoni S, Fioriti S, Pugnaloni A, Giampieri F, Mazzoni L, Gasparrini M, Marini E, Mingoia M, Battino M, Giovanetti E. Comparison of the Antimicrobial Activities of Four Honeys From Three Countries (New Zealand, Cuba, and Kenya). Front Microbiol 2018; 9:1378. [PMID: 29988499 PMCID: PMC6026664 DOI: 10.3389/fmicb.2018.01378] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/06/2018] [Indexed: 12/12/2022] Open
Abstract
Skin and chronic wound infections are an increasing and urgent health problem worldwide. Their management is difficult and the development of antibiotic resistance by both planktonic and biofilm-associated bacteria necessitates the use of alternative treatments. The purpose of this study was to compare the antimicrobial activity of four honeys from different floral and geographical origins: Melipona beecheii honey (Cuba) and three Apis mellifera honeys [Manuka honey (New Zealand), A. mellifera honey (Cuba), and African honey (Kenya)]. The physicochemical parameters were within the ranges reported for these honeys and M. beecheii honey stood out due to its acidic character. An agar incorporation technique was used to determine the minimum active dilution of each honey against 52 clinical isolates (34 Gram-positive, 17 Gram-negative, and 1 Candida albicans). The antibiofilm activity of honeys was tested by assessing their ability to inhibit biofilm formation and to disrupt preformed biofilms. Overall, M. beecheii honey had the highest antimicrobial and antibiofilm activity, although a marked disruption in preformed biofilms was shared by all tested honeys. Structural changes induced by M. beecheii honey on Staphylococcus aureus and Pseudomonas aeruginosa cells were observed by transmission electron microscopy suggesting that this honey has a potent antimicrobial action and may be an excellent candidate for the development of topical preparations for the treatment of infected wounds.
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Affiliation(s)
- Gianluca Morroni
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, Ancona, Italy
| | - José M Alvarez-Suarez
- Escuela de Medicina Veterinaria y Zootecnia, Facultad de Ciencias de la Salud, Grupo de Investigación en Biotecnología Aplicada a Biomedicina (BIOMED), Universidad de Las Américas, Quito, Ecuador.,Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO), Università Politecnica delle Marche, Ancona, Italy
| | - Andrea Brenciani
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, Ancona, Italy
| | - Serena Simoni
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, Ancona, Italy
| | - Simona Fioriti
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, Ancona, Italy
| | - Armanda Pugnaloni
- Dipartimento di Scienze Cliniche e Molecolari, Università Politecnica delle Marche, Ancona, Italy
| | - Francesca Giampieri
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO), Università Politecnica delle Marche, Ancona, Italy
| | - Luca Mazzoni
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO), Università Politecnica delle Marche, Ancona, Italy
| | - Massimiliano Gasparrini
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO), Università Politecnica delle Marche, Ancona, Italy
| | - Emanuela Marini
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, Ancona, Italy
| | - Marina Mingoia
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, Ancona, Italy
| | - Maurizio Battino
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO), Università Politecnica delle Marche, Ancona, Italy
| | - Eleonora Giovanetti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
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Ahmed S, Sulaiman SA, Baig AA, Ibrahim M, Liaqat S, Fatima S, Jabeen S, Shamim N, Othman NH. Honey as a Potential Natural Antioxidant Medicine: An Insight into Its Molecular Mechanisms of Action. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:8367846. [PMID: 29492183 PMCID: PMC5822819 DOI: 10.1155/2018/8367846] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 11/19/2017] [Indexed: 12/13/2022]
Abstract
Honey clasps several medicinal and health effects as a natural food supplement. It has been established as a potential therapeutic antioxidant agent for various biodiverse ailments. Data report that it exhibits strong wound healing, antibacterial, anti-inflammatory, antifungal, antiviral, and antidiabetic effects. It also retains immunomodulatory, estrogenic regulatory, antimutagenic, anticancer, and numerous other vigor effects. Data also show that honey, as a conventional therapy, might be a novel antioxidant to abate many of the diseases directly or indirectly associated with oxidative stress. In this review, these wholesome effects have been thoroughly reviewed to underscore the mode of action of honey exploring various possible mechanisms. Evidence-based research intends that honey acts through a modulatory road of multiple signaling pathways and molecular targets. This road contemplates through various pathways such as induction of caspases in apoptosis; stimulation of TNF-α, IL-1β, IFN-γ, IFNGR1, and p53; inhibition of cell proliferation and cell cycle arrest; inhibition of lipoprotein oxidation, IL-1, IL-10, COX-2, and LOXs; and modulation of other diverse targets. The review highlights the research done as well as the apertures to be investigated. The literature suggests that honey administered alone or as adjuvant therapy might be a potential natural antioxidant medicinal agent warranting further experimental and clinical research.
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Affiliation(s)
- Sarfraz Ahmed
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150 Kelantan, Malaysia
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Siti Amrah Sulaiman
- Department of Pharmacology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150 Kelantan, Malaysia
| | - Atif Amin Baig
- Faculty of Medicine, Universiti Sultan Zainal Abidin, Darul Iman, Kuala Terengganu, 20400 Terengganu, Malaysia
| | - Muhammad Ibrahim
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Sana Liaqat
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Saira Fatima
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Sadia Jabeen
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Nighat Shamim
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Nor Hayati Othman
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150 Kelantan, Malaysia
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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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Akhmetova A, Saliev T, Allan IU, Illsley MJ, Nurgozhin T, Mikhalovsky S. A Comprehensive Review of Topical Odor-Controlling Treatment Options for Chronic Wounds. J Wound Ostomy Continence Nurs 2017; 43:598-609. [PMID: 27684356 PMCID: PMC5098468 DOI: 10.1097/won.0000000000000273] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The process of wound healing is often accompanied by bacterial infection or critical colonization, resulting in protracted inflammation, delayed reepithelization, and production of pungent odors. The malodor produced by these wounds may lower health-related quality of life and produce psychological discomfort and social isolation. Current management focuses on reducing bacterial activity within the wound site and absorbing malodorous gases. For example, charcoal-based materials have been incorporated into dressing for direct adsorption of the responsible gases. In addition, multiple topical agents, including silver, iodine, honey, sugar, and essential oils, have been suggested for incorporation into dressings in an attempt to control the underlying bacterial infection. This review describes options for controlling malodor in chronic wounds, the benefits and drawbacks of each topical agent, and their mode of action. We also discuss the use of subjective odor evaluation techniques to assess the efficacy of odor-controlling therapies. The perspectives of employing novel biomaterials and technologies for wound odor management are also presented.
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Affiliation(s)
- Alma Akhmetova
- Alma Akhmetova, BSc, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Timur Saliev, MD, PhD, Laboratory of Translational Medicine and Life Sciences Technologies, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Iain U. Allan, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Matthew J. Illsley, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Talgat Nurgozhin, MD, PhD, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Sergey Mikhalovsky, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom; and School of Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Timur Saliev
- Correspondence: Timur Saliev, MD, PhD, Centre for Life Sciences, Nazarbayev University, Unit 9, 53 Kabanbay batyr Ave, Astana 010000, Kazakhstan ()
| | - Iain U. Allan
- Alma Akhmetova, BSc, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Timur Saliev, MD, PhD, Laboratory of Translational Medicine and Life Sciences Technologies, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Iain U. Allan, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Matthew J. Illsley, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Talgat Nurgozhin, MD, PhD, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Sergey Mikhalovsky, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom; and School of Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Matthew J. Illsley
- Alma Akhmetova, BSc, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Timur Saliev, MD, PhD, Laboratory of Translational Medicine and Life Sciences Technologies, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Iain U. Allan, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Matthew J. Illsley, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Talgat Nurgozhin, MD, PhD, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Sergey Mikhalovsky, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom; and School of Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Talgat Nurgozhin
- Alma Akhmetova, BSc, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Timur Saliev, MD, PhD, Laboratory of Translational Medicine and Life Sciences Technologies, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Iain U. Allan, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Matthew J. Illsley, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Talgat Nurgozhin, MD, PhD, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Sergey Mikhalovsky, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom; and School of Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Sergey Mikhalovsky
- Alma Akhmetova, BSc, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Timur Saliev, MD, PhD, Laboratory of Translational Medicine and Life Sciences Technologies, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Iain U. Allan, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Matthew J. Illsley, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
- Talgat Nurgozhin, MD, PhD, Laboratory of Experimental and Clinical Pharmacology and Pharmacy, National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Sergey Mikhalovsky, PhD, School of Biomaterials and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom; and School of Engineering, Nazarbayev University, Astana, Kazakhstan
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Danilova TA, Danilina GA, Adzhieva AA, Minko AG, Nikolaeva TN, Zhukhovitskii VG, Pronin AV. Effects of Miramistin and Phosprenil on Microbial Biofilms. Bull Exp Biol Med 2017; 163:439-442. [PMID: 28853090 DOI: 10.1007/s10517-017-3823-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Indexed: 10/19/2022]
Abstract
Effects of Miramistin and Phosprenil on biofilms of S. pyogenes, S. aureus, E. coli, L. acidophilus, and L. plantarum were studied. Significant differences in the effects of these substances on mature biofilms of microorganisms and the process of their formation were observed. Miramistin had significant inhibiting effects on the forming of biofilms and on the formed biofilms of all studied microorganisms. Treatment with Miramistin inhibited biofilm formation by 2-3 times compared to the control. This effect was found already after using of Miramistin in the low doses (3.12 μg/ml). Inhibition of the growth of a formed biofilm was observed only after treatment with Miramistin in the high doses (25-50 μg/ml). Phosprenil in the high doses (15-30 mg/ml) inhibited the forming of biofilms, especially the biofilms of S. pyogenes and L. plantarum (by 3-4.5 times). Treatment of formed biofilms with the agent in doses of 6.0 and 0.6 mg/ml was associated with pronounced stimulation of its growth in S. pyogenes, S. aureus, and L. acidophilus.
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Affiliation(s)
- T A Danilova
- Laboratory of Indication and Ultrastructural Analysis of Microorganisms, Moscow, Russia.
| | - G A Danilina
- Laboratory of Indication and Ultrastructural Analysis of Microorganisms, Moscow, Russia.,I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A A Adzhieva
- Laboratory of Indication and Ultrastructural Analysis of Microorganisms, Moscow, Russia
| | - A G Minko
- Laboratory of Indication and Ultrastructural Analysis of Microorganisms, Moscow, Russia
| | - T N Nikolaeva
- Laboratory of Natural Immunity, N. F. Gamaleya Federal Research Centre of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V G Zhukhovitskii
- Laboratory of Indication and Ultrastructural Analysis of Microorganisms, Moscow, Russia.,I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Pronin
- Laboratory of Natural Immunity, N. F. Gamaleya Federal Research Centre of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
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Abstract
BACKGROUND The development of bacterial resistance to antibiotics has made it more difficult and expensive to treat infections. Honey is getting worldwide attention as a topical therapeutic agent for wound infections and potential future candidate for systemic infections. OBJECTIVES The purpose of this review was to summarise different antibacterial bio-active compounds in honey, their synergistic interaction and their clinical implications in topical and systemic infections. In addition, contemporary testing methods for evaluating peroxide and non-peroxide antibacterial activity of honey were also critically appraised. DESIGN MEDLINE, EMBASE, Cochrane Library, Pub Med, reference lists and databases were used to review the literature. RESULTS Honey contains several unique antibacterial components. These components are believed to act on diverse bacterial targets, are broad spectrum, operate synergistically, prevent biofilm formation, and decrease production of virulence factors. Moreover, honey has the ability to block bacterial communication (quorum sensing), and therefore, it is unlikely that bacteria develop resistance against honey. Bacterial resistance against honey has not been documented so far. Unlike conventional antibiotics, honey only targets pathogenic bacteria without disturbing the growth of normal gastrointestinal flora when taken orally. It also contains prebiotics, probiotics, and zinc and enhances the growth of beneficial gut flora. The presence of such plethora of antibacterial properties in one product makes it a promising candidate not only in wound infections but also in systemic and particularly for gastrointestinal infections. Agar diffusion assay, being used for evaluating antibacterial activity of honey, is not the most appropriate and sensitive assay as it only detects non-peroxide activity when present at a higher level. Therefore, there is a need to develop more sensitive techniques that may be capable of detecting and evaluating different important components in honey as well as their synergistic interaction. CONCLUSIONS Keeping in view the current guidelines for treatment of diarrhea, honey is considered one of the potential candidates for treatment of diarrhea because it contains a natural combination of probiotics, prebiotics, and zinc. Therefore, it would be worthwhile if such a combination is tested in RCTs for treatment of diarrhea.
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Affiliation(s)
- Muhammad Barkaat Hussain
- Department of Microbiology, Faculty of Medicine, Rabigh Medical College, King Abdul Aziz University , Jeddah, Saudi Arabia
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48
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Bulman SEL, Tronci G, Goswami P, Carr C, Russell SJ. Antibacterial Properties of Nonwoven Wound Dressings Coated with Manuka Honey or Methylglyoxal. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E954. [PMID: 28813014 PMCID: PMC5578320 DOI: 10.3390/ma10080954] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 07/19/2017] [Accepted: 08/10/2017] [Indexed: 02/06/2023]
Abstract
Manuka honey (MH) is used as an antibacterial agent in bioactive wound dressings via direct impregnation onto a suitable substrate. MH provides unique antibacterial activity when compared with conventional honeys, owing partly to one of its constituents, methylglyoxal (MGO). Aiming to investigate an antibiotic-free antimicrobial strategy, we studied the antibacterial activity of both MH and MGO (at equivalent MGO concentrations) when applied as a physical coating to a nonwoven fabric wound dressing. When physically coated on to a cellulosic hydroentangled nonwoven fabric, it was found that concentrations of 0.0054 mg cm-2 of MGO in the form of MH and MGO were sufficient to achieve a 100 colony forming unit % bacteria reduction against gram-positive Staphylococcus aureus and gram-negative Klebsiella pneumoniae, based on BS EN ISO 20743:2007. A 3- to 20-fold increase in MGO concentration (0.0170-0.1 mg cm-2) was required to facilitate a good antibacterial effect (based on BS EN ISO 20645:2004) in terms of zone of inhibition and lack of growth under the sample. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) was also assessed for MGO in liquid form against three prevalent wound and healthcare-associated pathogens, i.e., Staphylococcus aureus, gram-negative Pseudomonas aeruginosa and gram-positive Enterococcus faecalis. Other than the case of MGO-containing fabrics, solutions with much higher MGO concentrations (128 mg L-1-1024 mg L-1) were required to provide either a bacteriostatic or bactericidal effect. The results presented in this study therefore demonstrate the relevance of an MGO-based coating as an environmentally friendly strategy for the design of functional dressings with antibiotic-free antimicrobial chemistries.
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Affiliation(s)
- Sophie E L Bulman
- Clothworkers' Centre for Textile Materials Innovation for Healthcare (CCTMIH), School of Design, University of Leeds, Leeds LS2 9JT, West Yorkshire, UK.
| | - Giuseppe Tronci
- Clothworkers' Centre for Textile Materials Innovation for Healthcare (CCTMIH), School of Design, University of Leeds, Leeds LS2 9JT, West Yorkshire, UK.
| | - Parikshit Goswami
- Clothworkers' Centre for Textile Materials Innovation for Healthcare (CCTMIH), School of Design, University of Leeds, Leeds LS2 9JT, West Yorkshire, UK.
| | - Chris Carr
- Clothworkers' Centre for Textile Materials Innovation for Healthcare (CCTMIH), School of Design, University of Leeds, Leeds LS2 9JT, West Yorkshire, UK.
| | - Stephen J Russell
- Clothworkers' Centre for Textile Materials Innovation for Healthcare (CCTMIH), School of Design, University of Leeds, Leeds LS2 9JT, West Yorkshire, UK.
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Antimicrobial effects of Manuka honey on in vitro biofilm formation by Clostridium difficile. Eur J Clin Microbiol Infect Dis 2017; 36:1661-1664. [DOI: 10.1007/s10096-017-2980-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 04/04/2017] [Indexed: 12/18/2022]
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50
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Alternative strategies for the study and treatment of clinical bacterial biofilms. Emerg Top Life Sci 2017; 1:41-53. [PMID: 33525815 DOI: 10.1042/etls20160020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 02/24/2017] [Accepted: 02/28/2017] [Indexed: 11/17/2022]
Abstract
Biofilms represent an adaptive lifestyle where microbes grow as structured aggregates in many different environments, e.g. on body surfaces and medical devices. They are a profound threat in medical (and industrial) settings and cause two-thirds of all infections. Biofilm bacteria are especially recalcitrant to common antibiotic treatments, demonstrating adaptive multidrug resistance. For this reason, novel methods to eradicate or prevent biofilm infections are greatly needed. Recent advances have been made in exploring alternative strategies that affect biofilm lifestyle, inhibit biofilm formation, degrade biofilm components and/or cause dispersal. As such, naturally derived compounds, molecules that interfere with bacterial signaling systems, anti-biofilm peptides and phages show great promise. Their implementation as either stand-alone drugs or complementary therapies has the potential to eradicate resilient biofilm infections. Additionally, altering the surface properties of indwelling medical devices through bioengineering approaches has been examined as a method for preventing biofilm formation. There is also a need for improving current biofilm detection methods since in vitro methods often do not accurately measure live bacteria in biofilms or mimic in vivo conditions. We propose that the design and development of novel compounds will be enabled by the improvement and use of appropriate in vitro and in vivo models.
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