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Huerta Lorenzo B, Galán-Relaño Á, Barba-Sánchez E, Romero-Salmoral A, Solarte Portilla AL, Gómez-Gascón L, Astorga Márquez RJ. Potentiation of the Antimicrobial Effect of Oxytetracycline Combined with Cinnamon, Clove, Oregano, and Red Thyme Essential Oils against MDR Salmonella enterica Strains. Animals (Basel) 2024; 14:1347. [PMID: 38731351 PMCID: PMC11083648 DOI: 10.3390/ani14091347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Tetracyclines have a high resistance percentage in Salmonella spp. of both human and animal origin. Essential oils, such as cinnamon (Cinnamomum zeylanicum), clove (Eugenia caryophyllata), oregano (Origanum vulgare), and red thyme (Thymus zygis), have shown bactericidal activity against this bacterium. However, in many cases, the minimum inhibitory concentration (MIC) exceeds the cytotoxicity limits. The objective of this study was to assess the in vitro efficacy of combining oxytetracycline with essential these oils against field multidrug-resistant (MDR) Salmonella enterica strains. The MIC of each product was determined using the broth microdilution method. The interaction was evaluated using the checkerboard method, by means of the fractional inhibitory concentration index (FICindex) determination. The results showed a positive interaction (synergy and additivity) between oxytetracycline and the four oils tested, resulting in a reduction in both products' MICs by 2 to 4 times their initial value, in the case of oils, and by 2 to 1024 times in the case of the antibiotic. The combination of oxytetracycline and cinnamon achieved the best results (FICindex 0.5), with a decrease in the antibiotic effective concentration to below the sensitivity threshold (MIC of the combined oxytetracycline 0.5 µg/mL). There was no antagonistic effect in any case, although differences in response were observed depending on the bacterial strain. The results of this study suggest that combining oxytetracycline with cinnamon oil could be an effective alternative for controlling tetracycline-resistant strains of Salmonella. However, its individual use should be further evaluated through in vitro susceptibility tests.
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Affiliation(s)
- Belén Huerta Lorenzo
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
- Zoonotic and Emerging Diseases (ENZOEM), University of Cordoba, 14014 Cordoba, Spain
| | - Ángela Galán-Relaño
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
- Zoonotic and Emerging Diseases (ENZOEM), University of Cordoba, 14014 Cordoba, Spain
| | - Emilio Barba-Sánchez
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
| | - Antonio Romero-Salmoral
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
- Zoonotic and Emerging Diseases (ENZOEM), University of Cordoba, 14014 Cordoba, Spain
| | - Ana L. Solarte Portilla
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
- Mariana University, Calle 18 No. 34-104 Pasto (N), San Juan de Pasto 52001, Colombia
| | - Lidia Gómez-Gascón
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
- Zoonotic and Emerging Diseases (ENZOEM), University of Cordoba, 14014 Cordoba, Spain
| | - Rafael J. Astorga Márquez
- Animal Health Department, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (B.H.L.); (E.B.-S.); (A.R.-S.); (A.L.S.P.); (L.G.-G.); (R.J.A.M.)
- Zoonotic and Emerging Diseases (ENZOEM), University of Cordoba, 14014 Cordoba, Spain
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Liu J, Xiang Y, Zhang Y. Stenotrophomonas maltophilia: An Urgent Threat with Increasing Antibiotic Resistance. Curr Microbiol 2023; 81:6. [PMID: 37955756 DOI: 10.1007/s00284-023-03524-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/14/2023] [Indexed: 11/14/2023]
Abstract
Stenotrophomonas maltophilia is a Gram-negative opportunistic pathogen that can cause many infections, such as chronic pulmonary infections in patients with cystic fibrosis and infections in immunocompromised patients with hematology-oncology diseases. Because of its remarkable and increasing antimicrobial resistance, the treatment of S. maltophilia infections is quite challenging. Meanwhile, the prevalence of S. maltophilia infections is increasing in recent decades. S. maltophilia is usually considered to be of low virulence but has numerous virulence factors involved in the pathogenesis of infections caused by S. maltophilia. By revealing its pathogenesis associated with virulence factors and molecular mechanisms of antimicrobial resistance, many existing or potential therapeutic strategies have been developed. However, because of the limited treatment options, new strategies are urgently needed. Here, we review the recent progresses in research on S. maltophilia which may help to develop more effective treatments against this increasing threat.
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Affiliation(s)
- Jiaying Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yanghui Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ying Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China.
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Veldman LBM, Belt-Van Zoen E, Baars EW. Mechanistic Evidence of Andrographis paniculata (Burm. f.) Wall. ex Nees, Pelargonium sidoides DC., Echinacea Species and a Combination of Hedera helix L., Primula veris L./ Primula elatior L. and Thymus vulgaris L./ Thymus zygis L. in the Treatment of Acute, Uncomplicated Respiratory Tract Infections: A Systematic Literature Review and Expert Interviews. Pharmaceuticals (Basel) 2023; 16:1206. [PMID: 37765014 PMCID: PMC10537612 DOI: 10.3390/ph16091206] [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: 05/31/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023] Open
Abstract
Reducing inappropriate antibiotic (AB) use by using effective non-antibiotic treatments is one strategy to prevent and reduce antimicrobial resistance (AMR). Andrographis paniculata (Burm. f.) Wall. ex Nees, Pelargonium sidoides DC., Echinacea species and a combination of ivy (Hedera helix L.), primrose (Primula veris L./Primula elatior L.) and thyme (Thymus vulgaris L./Thymus zygis L.) have promising clinical effects in uncomplicated, acute upper respiratory tract infections (URTI) treatment. However, mechanistic evidence of these herbal treatments is lacking. The objective of this Pstudy is to provide an overview of mechanistic evidence for these effects. Thirty-eight databases were searched. Included studies were mechanistic studies (in vitro, animal, and human studies and reviews) on these herbs; published before June 2021. Non-mechanistic studies or studies on combinations of herbs other than ivy/primrose/thyme were excluded. Furthermore, three experts in traditional, complementary and integrative healthcare (TCIH) research and pharmacognosy were interviewed to collect additional expert knowledge. The results show that A. paniculata acts through immunomodulation and antiviral activity, possibly supplemented by antibacterial and antipyretic effects. P. sidoides acts through antiviral, indirect antibacterial, immunomodulatory and expectorant effects. Echinacea species likely act through immunomodulation. The combination of ivy/primrose/thyme combines secretolytic and spasmolytic effects from ivy with antibacterial effects from thyme. Studies on primrose were lacking. This mechanistic evidence supports the difference-making evidence from clinical studies, contributes to evidence-based recommendations for their use in URTI treatment, and guides future mechanistic studies on URTI treatments.
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Affiliation(s)
- Liesbeth B. M. Veldman
- Faculty of Healthcare, University of Applied Sciences Leiden, 2333 Leiden, The Netherlands
| | - Eefje Belt-Van Zoen
- Faculty of Healthcare, University of Applied Sciences Leiden, 2333 Leiden, The Netherlands
| | - Erik W. Baars
- Faculty of Healthcare, University of Applied Sciences Leiden, 2333 Leiden, The Netherlands
- Louis Bolk Institute, 3981 Bunnik, The Netherlands
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Li J, Chen W, Liu H, Liu H, Xiang S, You F, Jiang Y, Lin J, Zhang D, Zheng C. Pharmacologic effects approach of essential oils and their components on respiratory diseases. JOURNAL OF ETHNOPHARMACOLOGY 2023; 304:115962. [PMID: 36529244 DOI: 10.1016/j.jep.2022.115962] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/12/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Essential oils (EOs) are concentrated hydrophobic liquids with volatility and a unique aroma. Formed by aromatic plants as secondary metabolites, EOs have been used as traditional medicines to treat various health problems worldwide. Historical records show that herbs rich in EOs have been widely used to treat respiratory diseases in China, Europe, and many other regions. AIM OF THE REVIEW This review summarizes the traditional applications and modern pharmacological mechanisms of EOs derived from aromatic herbs and their active ingredients in respiratory diseases in preclinical and clinical trials through multitarget synergy. MATERIALS AND METHODS Information about EOs and respiratory diseases was collected from electronic databases, such as ScienceDirect, Web of Science, PubMed, Google Scholar, Baidu Scholar, and the China National Knowledge Infrastructure (CNKI). RESULTS This review presents the preventive and therapeutic effects of EOs on respiratory diseases, including chronic obstructive pulmonary disease, bronchial asthma, acute lung injury, pulmonary infection, and pulmonary fibrosis. The molecular mechanisms of EOs in treating different lung diseases are summarized, including anti-inflammation, anti-oxidation, mucolytic, and immune regulatory mechanisms. CONCLUSIONS EOs show potential as supplements or substitutes for treating lung diseases.
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Affiliation(s)
- Jia Li
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Wu Chen
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Huimin Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, No. 1066 Avenue Liutai, Chengdu, 611137, China.
| | - Hong Liu
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Sirui Xiang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Fengming You
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Yifang Jiang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Junzhi Lin
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
| | - Dingkun Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, No. 1066 Avenue Liutai, Chengdu, 611137, China.
| | - Chuan Zheng
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan Province, China.
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Pungle R, Nile SH, Kharat AS. Green synthesis and characterization of Solanum xanthocarpum capped silver nanoparticles and its antimicrobial effect on multidrug-resistant bacterial (MDR) isolates. Chem Biol Drug Des 2023; 101:469-478. [PMID: 34453485 DOI: 10.1111/cbdd.13945] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/12/2021] [Indexed: 12/17/2022]
Abstract
Plant extracts and their bioactive compounds are considered as the promising options for green synthesis of nanoparticles instead expensive and hazardous materials. Here, Solanum xanthocarpum fruit was used for synthesis of silver nanoparticles (AgNP). The synthesized AgNPs were characterized by using chromatographic and spectroscopic analytical methods. AgNPs were confirmed by UV-visible absorbance at 420-470 nm. TEM analysis showed AgNP with 22.45 nm average size. X-ray diffraction studies revealed the crystalline and face central cubic nature of AgNPs. FTIR analysis revealed functional group present over AgNPs. The aminodiphenyl acetic acid, clomipramine, and fonisopril from fruit extracts were found to be major capping agents on AgNPs as a result of analysis by HRLC-MS. All clinical isolates showed resistance for ampicilline, amoxyclav, niladixic acid, and sulphafurazole, suggesting multidrug resistance. The results showed that all isolates were sensitive to AgNPs synthesized fruit extracts. On the contrary, all isolates were resistant to whole S. xanthocarpum fruit extracts alone. The antimicrobial activity of AgNP was explored against multidrug-resistant (MDR) Gram-negative clinical isolates including Escherichia coli, Shigella spp., Aeronomonas spp. and Pseudomonas spp. MIC values ranged between 1.25 mg/ml and 2.5 mg/ml at 8 McFarland's standards. Minimum bactericidal concentration was found to be in between 2.5 mg/ml to 5 mg/ml. Nanoparticles synthesized from fruit extract of S. xanthocarpum containing aminodiphenyl acetic acid, clomipramine, and fonisopril metabolites exhibit promising antimicrobial activity against MDR Gram-negative clinical isolates.
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Affiliation(s)
- Rohini Pungle
- Department of Biotechnology, Shivchattrapati College, Aurangabad, India.,Department of Biotechnology, Dr. Babasaheb Ambedkar Marathwada University, Sub-Campus Osmanabad, Aurangabad, India
| | - Shivraj Hariram Nile
- Laboratory of Medicinal Plant and Food Biotechnology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Arun S Kharat
- Department of Biotechnology, Dr. Babasaheb Ambedkar Marathwada University, Sub-Campus Osmanabad, Aurangabad, India.,Laboratory of Applied Microbiology, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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Molecular Insight into Gene Response of Diorcinol- and Rubrolide-Treated Biofilms of the Emerging Pathogen Stenotrophomonas maltophilia. Microbiol Spectr 2022; 10:e0258221. [PMID: 35471093 PMCID: PMC9241881 DOI: 10.1128/spectrum.02582-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Stenotrophomonas maltophilia is a multidrug-resistant human opportunistic pathogen. S. maltophilia contributes to disease progression in cystic fibrosis patients and is found in wounds and infected tissues and on catheter surfaces. Due to its well-known multidrug resistance, it is difficult to treat S. maltophilia infections. Strain-specific susceptibility to antimicrobials has also been reported in several studies. Recently, three fungal diorcinols and 14 rubrolides were shown to reduce S. maltophilia K279a biofilm formation. Based on these initial findings, we were interested to extend this approach by testing a larger number of diorcinols and rubrolides and to understand the molecular mechanisms behind the observed antibiofilm effects. Of 52 tested compounds, 30 were able to significantly reduce the biofilm thickness by up to 85% ± 15% and had strong effects on mature biofilms. All compounds with antibiofilm activity also significantly affected the biofilm architecture. Additional RNA-sequencing data of diorcinol- and rubrolide-treated biofilm cells of two clinical isolates (454 and K279) identified a small set of shared genes that were affected by these potent antibiofilm compounds. Among these, genes for iron transport, general metabolism, and membrane biosynthesis were most strongly and differentially regulated. A further hierarchical clustering and detailed structural inspection of the diorcinols and rubrolides implied that a prenyl group as side chain of one of the phenyl groups of the diorcinols and an increasing degree of bromination of chlorinated rubrolides were possibly the cause of the strong antibiofilm effects. This study gives a deep insight into the effects of rubrolides and diorcinols on biofilms formed by the important global pathogen S. maltophilia. IMPORTANCE Combating Stenotrophomonasmaltophilia biofilms in clinical and industrial settings has proven to be challenging. S. maltophilia is multidrug resistant, and occurrence of resistance to commonly used drugs as well as to antibiotic combinations, such as trimethoprim-sulfamethoxazole, is now frequently reported. It is therefore now necessary to look beyond conventional and already existing antimicrobial drugs when battling S. maltophilia biofilms. Our study contains comprehensive and detailed data sets for diorcinol and rubrolide-treated S. maltophilia biofilms. The study defines genes and pathways affected by treatment with these different compounds. These results, together with the identified structural elements that may be crucial for their antibiofilm activity, build a strong backbone for further research on diorcinols and rubrolides as novel and potent antibiofilm compounds.
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Leigh-de Rapper S, Viljoen A, van Vuuren S. Essential Oil Blends: The Potential of Combined Use for Respiratory Tract Infections. Antibiotics (Basel) 2021; 10:antibiotics10121517. [PMID: 34943729 PMCID: PMC8698682 DOI: 10.3390/antibiotics10121517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 11/29/2022] Open
Abstract
This study investigated the potential efficacy of 369 commercial essential oil combinations for antimicrobial, anti-toxic and anti-inflammatory activity with the aim of identifying synergy among essential oils commonly used in combination by aromatherapists for respiratory purposes. Essential oil combinations were assessed for their antimicrobial activities using a panel of Gram-positive, Gram-negative, and yeast strains associated with respiratory tract infections. The antimicrobial activity was measured by determining the minimal inhibitory concentration (MIC) of microbial growth. The fractional inhibitory concentration index (ΣFIC) was calculated to determine the antimicrobial interactions between the essential oils in the combination. The toxicity of the essential oil combinations was tested in vitro using the brine shrimp lethality assay, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on RAW 264.7 mouse macrophage cells and A549 lung cancer cell lines. In addition, an inflammatory response was evaluated measuring nitric oxide production. The essential oils, when in combination, demonstrated an increased antimicrobial effect, a reduction in toxicity and provided improved anti-inflammatory outcomes. Five distinct combinations [Cupressus sempervirens (cypress) in combination with Melaleuca alternifolia (tea tree), Hyssopus officinalis (hyssop) in combination with Rosmarinus officinalis (rosemary), Origanum marjorana (marjoram) in combination with M. alternifolia, Myrtus communis (myrtle) in combination with M. alternifolia and Origanum vulgare (origanum) in combination with M. alternifolia] were found to be the most promising, demonstrating antimicrobial activity, reduced cytotoxicity and improved anti-inflammatory effects. With the increased prevalence of respiratory tract infections and the growing antimicrobial resistance development associated with antimicrobial treatments, this study provides a promising complementary alternative for the appropriate use of a selection of essential oil combinations for use in the respiratory tract.
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Affiliation(s)
- Stephanie Leigh-de Rapper
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown 2193, South Africa;
| | - Alvaro Viljoen
- Department of Pharmaceutical Sciences, Faculty of Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa;
- SAMRC Herbal Drugs Research Unit, Department of Pharmaceutical Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa
| | - Sandy van Vuuren
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown 2193, South Africa;
- Correspondence:
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Afroz S, Fairuz S, Joty JA, Uddin MN, Rahman MA. Virtual screening of functional foods and dissecting their roles in modulating gene functions to support post COVID-19 complications. J Food Biochem 2021; 45:e13961. [PMID: 34676581 PMCID: PMC8646449 DOI: 10.1111/jfbc.13961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 12/19/2022]
Abstract
COVID‐19 has become the focal point since 2019 after the outbreak of coronavirus disease. Many drugs are being tested and used to treat coronavirus infections; different kinds of vaccines are also introduced as preventive measure. Alternative therapeutics are as well incorporated into the health guidelines of some countries. This research aimed to look into the underlying mechanisms of functional foods and how they may improve the long‐term post COVID‐19 cardiovascular, diabetic, and respiratory complications through their bioactive compounds. The potentiality of nine functional foods for post COVID‐19 complications was investigated through computational approaches. A total of 266 bioactive compounds of these foods were searched via extensive literature reviewing. Three highly associated targets namely troponin I interacting kinase (TNNI3K), dipeptidyl peptidase 4 (DPP‐4), and transforming growth factor beta 1 (TGF‐β1) were selected for cardiovascular, diabetes, and respiratory disorders, respectively, after COVID‐19 infections. Best docked compounds were further analyzed by network pharmacological tools to explore their interactions with complication‐related genes (MAPK1 and HSP90AA1 for cardiovascular, PPARG and TNF‐alpha for diabetes, and AKT‐1 for respiratory disorders). Seventy‐one suggested compounds out of one‐hundred and thirty‐nine (139) docked compounds in network pharmacology recommended 169 Gene Ontology (GO) items and 99 Kyoto Encyclopedia of Genes and Genomes signaling pathways preferably AKT signaling pathway, MAPK signaling pathway, ACE2 receptor signaling pathway, insulin signaling pathway, and PPAR signaling pathway. Among the chosen functional foods, black cumin, fenugreek, garlic, ginger, turmeric, bitter melon, and Indian pennywort were found to modulate the actions. Results demonstrate that aforesaid functional foods have attenuating roles to manage post COVID‐19 complications.
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Affiliation(s)
- Sharmin Afroz
- Department of Theoretical and Computational Chemistry, University of Dhaka, Dhaka, Bangladesh
| | - Shadreen Fairuz
- School of Science, Monash University Malaysia, Selangor, Malaysia
| | - Jahanara Alam Joty
- Department of Biochemistry and Biotechnology, University of Science and Technology, Chittagong, Bangladesh
| | - Md Nazim Uddin
- Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research, Dhaka, Bangladesh
| | - Md Atiar Rahman
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong, Bangladesh
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de Aguiar FC, Solarte AL, Gómez-Gascón L, Galán-Relaño A, Luque I, Tarradas C, Rodríguez-Ortega MJ, Huerta B. Antimicrobial susceptibility of cinnamon and red and common thyme essential oils and their main constituent compounds against Streptococcus suis. Lett Appl Microbiol 2021; 74:63-72. [PMID: 34623693 DOI: 10.1111/lam.13582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 11/30/2022]
Abstract
Streptococcus suis is an emerging zoonotic pathogen causing different diseases, in both humans and pigs. Generally, the control of this pathogen is based on antimicrobial therapy, but the development of bacterial resistance has led one to look for new options. In this sense, the essential oils (EOs) constitute a promising alternative. The activity of cinnamon, common thyme and red thyme EOs and their main active compounds (cinnamaldehyde and thymol) against S. suis isolates from pigs (n = 50) and humans (n = 6) was determined by the broth microdilution method. MIC50-90, MBC50-90 and the bactericidal index (BI) (minimal bactericidal concentration (MBC)/minimal inhibitory concentration (MIC)) were calculated. Also, the time-kill curve of each product against the S. suis P1/7 European reference strain was determined. No differences in the MIC or MBC values were observed between all the tested products, which suggest a homogeneous behaviour of S. suis, independently of their origin, organ of isolation or resistance profile. All the products showed a concentration-dependent and time-dependent killing activity and achieved the virtual eradication of S. suis at supra-inhibitory concentrations within the first 5 min of exposure, except cinnamaldehyde that showed only bacteriostatic effect. It suggests that these products could be utilized as antimicrobials in veterinary medicine for the control of this zoonotic pathogen.
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Affiliation(s)
- F C de Aguiar
- Animal Health Department, University of Cordoba, Córdoba, Spain
| | - A L Solarte
- Medicine Faculty, University Cooperative of Colombia, Pasto, Colombia
| | - L Gómez-Gascón
- Animal Health Department, University of Cordoba, Córdoba, Spain
| | - A Galán-Relaño
- Animal Health Department, University of Cordoba, Córdoba, Spain
| | - I Luque
- Animal Health Department, University of Cordoba, Córdoba, Spain
| | - C Tarradas
- Animal Health Department, University of Cordoba, Córdoba, Spain
| | - M J Rodríguez-Ortega
- Biochemistry and Molecular Biology Department, University of Cordoba, Córdoba, Spain
| | - B Huerta
- Animal Health Department, University of Cordoba, Córdoba, Spain
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10
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Arena ME, Alberto MR, Cartagena E. Potential use of Citrus essential oils against acute respiratory syndrome caused by coronavirus. JOURNAL OF ESSENTIAL OIL RESEARCH 2021. [DOI: 10.1080/10412905.2021.1912839] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mario Eduardo Arena
- Instituto de Biotecnología Farmacéutica y Alimentaria (INBIOFAL) CONICET–UNT, Tucumán, Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Tucumán, Argentina
| | - María Rosa Alberto
- Instituto de Biotecnología Farmacéutica y Alimentaria (INBIOFAL) CONICET–UNT, Tucumán, Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Tucumán, Argentina
| | - Elena Cartagena
- Instituto de Biotecnología Farmacéutica y Alimentaria (INBIOFAL) CONICET–UNT, Tucumán, Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Tucumán, Argentina
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11
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Cimino C, Maurel OM, Musumeci T, Bonaccorso A, Drago F, Souto EMB, Pignatello R, Carbone C. Essential Oils: Pharmaceutical Applications and Encapsulation Strategies into Lipid-Based Delivery Systems. Pharmaceutics 2021; 13:pharmaceutics13030327. [PMID: 33802570 PMCID: PMC8001530 DOI: 10.3390/pharmaceutics13030327] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/12/2021] [Accepted: 02/24/2021] [Indexed: 12/14/2022] Open
Abstract
Essential oils are being studied for more than 60 years, but a growing interest has emerged in the recent decades due to a desire for a rediscovery of natural remedies. Essential oils are known for millennia and, already in prehistoric times, they were used for medicinal and ritual purposes due to their therapeutic properties. Using a variety of methods refined over the centuries, essential oils are extracted from plant raw materials: the choice of the extraction method is decisive, since it determines the type, quantity, and stereochemical structure of the essential oil molecules. To these components belong all properties that make essential oils so interesting for pharmaceutical uses; the most investigated ones are antioxidant, anti-inflammatory, antimicrobial, wound-healing, and anxiolytic activities. However, the main limitations to their use are their hydrophobicity, instability, high volatility, and risk of toxicity. A successful strategy to overcome these limitations is the encapsulation within delivery systems, which enable the increase of essential oils bioavailability and improve their chemical stability, while reducing their volatility and toxicity. Among all the suitable platforms, our review focused on the lipid-based ones, in particular micro- and nanoemulsions, liposomes, solid lipid nanoparticles, and nanostructured lipid carriers.
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Affiliation(s)
- Cinzia Cimino
- Laboratory of Drug Delivery Technology, Department of Drug and Health Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (C.C.); (T.M.); (A.B.); (R.P.)
| | - Oriana Maria Maurel
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (O.M.M.); (F.D.)
| | - Teresa Musumeci
- Laboratory of Drug Delivery Technology, Department of Drug and Health Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (C.C.); (T.M.); (A.B.); (R.P.)
| | - Angela Bonaccorso
- Laboratory of Drug Delivery Technology, Department of Drug and Health Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (C.C.); (T.M.); (A.B.); (R.P.)
| | - Filippo Drago
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (O.M.M.); (F.D.)
| | - Eliana Maria Barbosa Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal;
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Rosario Pignatello
- Laboratory of Drug Delivery Technology, Department of Drug and Health Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (C.C.); (T.M.); (A.B.); (R.P.)
| | - Claudia Carbone
- Laboratory of Drug Delivery Technology, Department of Drug and Health Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (C.C.); (T.M.); (A.B.); (R.P.)
- Correspondence:
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12
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Singh B, Singh JP, Kaur A, Yadav MP. Insights into the chemical composition and bioactivities of citrus peel essential oils. Food Res Int 2021; 143:110231. [PMID: 33992345 DOI: 10.1016/j.foodres.2021.110231] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 01/31/2021] [Accepted: 02/13/2021] [Indexed: 12/11/2022]
Abstract
Citrus peel (CP), a by-product of the citrus fruit processing, comprises nearly forty to fifty percent of the fruit portion. Interestingly, the essential oil (EO) is primarily concentrated in the peel portion of the citrus fruit. Extraction of CP essential oil (CPEO) is an effective way of utilizing the citrus fruit processing waste. The CPEO can be more efficiently recovered from CP waste by improving the efficiency of conventional extraction processes. The main components of CPEO include monoterpenes, sesquiterpenes and their oxygenated derivatives. Specifically, limonene is the major oil component identified in the peel of different citrus species. The health promoting biological activities of CPEO are functioning as antioxidant, anti-inflammatory, analgesic, antimicrobial and anticancer agents, thereby can be used as a source of functional components and preservatives for the development of nutritionally safe newer food products. This paper provides an in-depth knowledge about the chemical constituents and bioactivities of EOs extracted from peels of different citrus species.
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Affiliation(s)
- Balwinder Singh
- P.G. Department of Biotechnology, Khalsa College, Amritsar 143002, Punjab, India
| | - Jatinder Pal Singh
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Amritpal Kaur
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
| | - Madhav P Yadav
- Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA.
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Panikar S, Shoba G, Arun M, Sahayarayan JJ, Usha Raja Nanthini A, Chinnathambi A, Alharbi SA, Nasif O, Kim HJ. Essential oils as an effective alternative for the treatment of COVID-19: Molecular interaction analysis of protease (M pro) with pharmacokinetics and toxicological properties. J Infect Public Health 2021; 14:601-610. [PMID: 33848890 PMCID: PMC7874929 DOI: 10.1016/j.jiph.2020.12.037] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/12/2020] [Accepted: 12/19/2020] [Indexed: 12/28/2022] Open
Abstract
Background The current health concern to the entire world is the chronic respiratory disease caused by coronavirus 2 (COVID-19). A specific treatment or proper therapy is still lacking, and the investigations from across the world for proper drug/vaccine development towards disease control are in progress. The Coronavirus replication takes place by the conversion of the polypeptide into functional protein and this occurs due to the key enzyme Main protease (Mpro). Therefore, identification of natural and effective Mpro inhibitors could be a safe and promising approach for COVID-19 control. Methods The present in silico study evaluates the effect of bioactive compounds found in Eucalyptus and Corymbia species essential oil on Mpro by docking. Molecular docking of the major seven compounds of essential oil (citronellol, alpha-terpineol, eucalyptol, d-limonene, 3-carene, o-cymene, and alpha-pinene) with Mpro was studied by AutoDock 4.2, and the properties were analysed by PreADMET and Biovia Discovery Studio visualizer. Results The calculated parameters such as binding energy, hydrophobic interactions, and hydrogen bond interactions of 6LU7 (Mpro) with Eucalyptus and Corymbia volatile secondary metabolites represented its scope as an effective therapy option against covid-19. Among the docked compounds, eucalyptol shows the least binding energy without toxicity. Conclusions The outcome of this study reported that the essential oil of Eucalyptus and Corymbia species, mainly eucalyptol can be utilized as a potential inhibitor against COVID-19 and also it can be used in its treatment. Hence, further analysis was required to explore its potential application in medicine.
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Affiliation(s)
- Sukanya Panikar
- Department of Biotechnology, Mother Teresa Women's University, Kodaikanal, Tamil Nadu, India
| | - Gunasekaran Shoba
- Department of Biotechnology, Mother Teresa Women's University, Kodaikanal, Tamil Nadu, India; Department of Biotechnology, Dwaraka Doss Goverdhan Doss Vaishnav College, Chennai, Tamil Nadu, India
| | - Muthukrishnan Arun
- Department of Biotechnology, Bharathiar University, Coimbatore, Tamil Nadu, India
| | | | - A Usha Raja Nanthini
- Department of Biotechnology, Mother Teresa Women's University, Kodaikanal, Tamil Nadu, India.
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box-2455, Riyadh 11451, Saudi Arabia
| | - Sulaiman A Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box-2455, Riyadh 11451, Saudi Arabia
| | - Omaima Nasif
- Department of Physiology, College of Medicine, King Saud University, [Medical City], King Khalid University Hospital, PO Box-2925, Riyadh 11461, Saudi Arabia
| | - Hak-Jae Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.
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Kačániová M, Terentjeva M, Galovičová L, Ivanišová E, Štefániková J, Valková V, Borotová P, Kowalczewski PŁ, Kunová S, Felšöciová S, Tvrdá E, Žiarovská J, Benda Prokeinová R, Vukovic N. Biological Activity and Antibiofilm Molecular Profile of Citrus aurantium Essential Oil and Its Application in a Food Model. Molecules 2020; 25:E3956. [PMID: 32872611 PMCID: PMC7504819 DOI: 10.3390/molecules25173956] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/20/2022] Open
Abstract
The main aim of the study was to investigate the chemical composition, antioxidant, antimicrobial, and antibiofilm activity of Citrus aurantium essential oil (CAEO). The biofilm profile of Stenotrophonomonas maltophilia and Bacillus subtilis were assessed using the mass spectrometry MALDI-TOF MS Biotyper and the antibiofilm activity of Citrus aurantium (CAEO) was studied on wood and glass surfaces. A semi-quantitative composition using a modified version was applied for the CAEO characterization. The antioxidant activity of CAEO was determined using the DPPH method. The antimicrobial activity was analyzed by disc diffusion for two biofilm producing bacteria, while the vapor phase was used for three penicillia. The antibiofilm activity was observed with the agar microdilution method. The molecular differences of biofilm formation on different days were analyzed, and the genetic similarity was studied with dendrograms constructed from MSP spectra to illustrate the grouping profiles of S. maltophilia and B. subtilis. A differentiated branch was obtained for early growth variants of S. maltophilia for planktonic cells and all experimental groups. The time span can be reported for the grouping pattern of B. subtilis preferentially when comparing to the media matrix, but without clear differences among variants. Furthermore, the minimum inhibitory doses of the CAEO were investigated against microscopic fungi. The results showed that CAEO was most active against Penicillium crustosum, in the vapor phase, on bread and carrot in situ.
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Affiliation(s)
- Miroslava Kačániová
- Department of Fruit Science, Viticulture and Enology, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (M.K.); (L.G.); (V.V.)
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, University of Rzeszow, Cwiklinskiej 1, 35-601 Rzeszow, Poland
| | - Margarita Terentjeva
- Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, K. Helmaņaiela 8, LV-3004 Jelgava, Latvia;
| | - Lucia Galovičová
- Department of Fruit Science, Viticulture and Enology, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (M.K.); (L.G.); (V.V.)
| | - Eva Ivanišová
- Department of Technology and Quality of Plant Products, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia;
| | - Jana Štefániková
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (J.Š.); (P.B.)
| | - Veronika Valková
- Department of Fruit Science, Viticulture and Enology, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (M.K.); (L.G.); (V.V.)
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (J.Š.); (P.B.)
| | - Petra Borotová
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (J.Š.); (P.B.)
| | - Przemysław Łukasz Kowalczewski
- Institute of Food Technology of Plant Origin, Poznań University of Life Sciences, 31 Wojska Polskiego St., 60-624 Poznań, Poland;
| | - Simona Kunová
- Department of Food Hygiene and Safety, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Soňa Felšöciová
- Department of Microbiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Eva Tvrdá
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Jana Žiarovská
- Department of Plant Genetics and Breeding, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Renáta Benda Prokeinová
- Department of Statistics and Operations Research, Faculty of Economic and Management, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Nenad Vukovic
- Department of Chemistry, Faculty of Science, University of Kragujevac, P.O. Box 12, 34000 Kragujevac, Serbia
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Transcriptomic analysis of multi-drug resistant Escherichia coli K-12 strain in response to Lavandula angustifolia essential oil. 3 Biotech 2020; 10:313. [PMID: 32596098 DOI: 10.1007/s13205-020-02304-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 06/12/2020] [Indexed: 10/24/2022] Open
Abstract
To better understand the synergistic antibacterial activity between piperacillin and Lavandula angustifolia essential oil (LEO) against multidrug-resistant Escherichia coli, we performed microarray transcriptomic analysis of LEO when used alone and in combination with piperacillin against the non-treated control. In total, 90 genes were differentially expressed after the combination of LEO and piperacillin treatment. Among the up-regulated genes, nfsB, nemA, fruA, nfsB, nemA are known to control microbial metabolism and nitrotoluene degradation, which were observed only in the LEO-piperacillin combinatory treatment. Four candidate genes from the microarray result, srIA, srID, waaR and nfsB, were validated by qRT-PCR as these genes showed differential expression consistently in the two methods. Biochemical pathway analysis showed that there was upregulation of genes involved in several biological processes including fructose and mannose metabolism, phosphotransferase system (PTS), lipopolysaccharide biosynthesis and nitrotoluene degradation. Genes involved in microbial metabolism in diverse environments were found both up- and down-regulated in LEO-piperacillin combinatory treatment. Our study provides new information concerning the transcriptional changes that occur during the LEO and piperacillin interaction against the multidrug-resistant bacteria and contributes to unravel the mechanisms underlying this synergism.
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Leigh-de Rapper S, van Vuuren SF. Odoriferous Therapy: A Review Identifying Essential Oils against Pathogens of the Respiratory Tract. Chem Biodivers 2020; 17:e2000062. [PMID: 32207224 DOI: 10.1002/cbdv.202000062] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/20/2020] [Indexed: 01/01/2023]
Abstract
This review explores the body of scientific information available on the antimicrobial properties of essential oils against pathogens responsible for respiratory infections and critically compares this to what is recommended in the Layman's aroma-therapeutic literature. Essential oils are predominantly indicated for the treatment of respiratory infections caused by bacteria or viruses (total 79.0 %), the efficacy of which has not been confirmed through clinical trials. When used in combination, they are often blended for presumed holistic synergistic effects. Of the essential oils recommended, all show some degree of antioxidant activity, 50.0 % demonstrate anti-inflammatory effects and 83.3 % of the essential oils showed antihistaminic activity. Of the essential oils reviewed, 43.8 % are considered non-toxic while the remaining essential oils are considered slightly to moderately toxic (43.7 %) or the toxicity is unknown (12.5 %). Recommendations are made for further research into essential oil combinations.
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Affiliation(s)
- Stephanie Leigh-de Rapper
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, South Africa
| | - Sandy F van Vuuren
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, South Africa
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Bora H, Kamle M, Mahato DK, Tiwari P, Kumar P. Citrus Essential Oils (CEOs) and Their Applications in Food: An Overview. PLANTS (BASEL, SWITZERLAND) 2020; 9:E357. [PMID: 32168877 PMCID: PMC7154898 DOI: 10.3390/plants9030357] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 12/19/2022]
Abstract
Citrus is a genus belonging to the Rutaceae family and includes important crops like orange, lemons, pummelos, grapefruits, limes, etc. Citrus essential oils (CEOs) consist of some major biologically active compounds like α-/β-pinene, sabinene, β-myrcene, d-limonene, linalool, α-humulene, and α-terpineol belonging to the monoterpenes, monoterpene aldehyde/alcohol, and sesquiterpenes group, respectively. These compounds possess several health beneficial properties like antioxidant, anti-inflammatory, anticancer, etc., in addition to antimicrobial properties, which have immense potential for food applications. Therefore, this review focused on the extraction, purification, and detection methods of CEOs along with their applications for food safety, packaging, and preservation. Further, the concerns of optimum dose and safe limits, their interaction effects with various food matrices and packaging materials, and possible allergic reactions associated with the use of CEOs in food applications were briefly discussed, which needs to be addressed in future research along with efficient, affordable, and "green" extraction methods to ensure CEOs as an ecofriendly, cost-effective, and natural alternative to synthetic chemical preservatives.
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Affiliation(s)
- Himashree Bora
- Department of Forestry, North Eastern Regional Institute of Science and Technology, Nirjuli 791109, India; (H.B.); (M.K.)
| | - Madhu Kamle
- Department of Forestry, North Eastern Regional Institute of Science and Technology, Nirjuli 791109, India; (H.B.); (M.K.)
| | - Dipendra Kumar Mahato
- School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Hwy, Burwood, VIC 3125, Australia;
| | - Pragya Tiwari
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea
| | - Pradeep Kumar
- Department of Forestry, North Eastern Regional Institute of Science and Technology, Nirjuli 791109, India; (H.B.); (M.K.)
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Antibacterial activity of essential oils against Stenotrophomonas maltophilia and the effect of citral on cell membrane. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108667] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Alexa VT, Galuscan A, Popescu I, Tirziu E, Obistioiu D, Floare AD, Perdiou A, Jumanca D. Synergistic/Antagonistic Potential of Natural Preparations Based on Essential Oils Against Streptococcus mutans from the Oral Cavity. Molecules 2019; 24:molecules24224043. [PMID: 31703466 PMCID: PMC6891698 DOI: 10.3390/molecules24224043] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/03/2019] [Accepted: 11/05/2019] [Indexed: 12/13/2022] Open
Abstract
The present paper addresses a thematic of interest in preventive dental medicine, namely the possibility of using essential oils (EOs) for the inhibition of the development of Streptococcus mutans (S. mutans) in the oral cavity, as a viable alternative to chemical products with protective role in oral health. For this purpose, four EOs (cinnamon, clove, bergamote, and orange) were chemically characterized by gas chromatography coupled with mass spectrometry (GC-MS) and in vitro tested against S. mutans (ATCC 25175). The results obtained revealed the antibacterial effect on S. mutans exercised by the essential oils of clove (CLEO), bergamote (BEO), and orange (OEO), which were included in the production of natural emulsion-type preparations with application in dental medicine. In order to highlight the synersistic/antagonistic effects generated by the chemical constituent of essential oils, binary and tertiary emulsions were prepared and used in saliva-enhanced medium against S.mutans. The saliva tests proved the synergistic effect exercised by the active components of EOs tested from tertiary emulsions, which cause an inhibition of the development of S. mutans in oral cavities.
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Affiliation(s)
- Vlad Tiberiu Alexa
- Faculty of Dental Medicine, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania; (V.T.A.); (A.D.F.); (A.P.); (D.J.)
| | - Atena Galuscan
- Faculty of Dental Medicine, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania; (V.T.A.); (A.D.F.); (A.P.); (D.J.)
- Correspondence: ; Tel.: +40-748677191
| | - Iuliana Popescu
- Faculty of Agriculture, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timişoara, Calea Aradului No. 119, 300641 Timişoara, Romania;
| | - Emil Tirziu
- Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timişoara, Calea Aradului No. 119, 300641 Timişoara, Romania; (E.T.); (D.O.)
| | - Diana Obistioiu
- Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timişoara, Calea Aradului No. 119, 300641 Timişoara, Romania; (E.T.); (D.O.)
| | - Alin Daniel Floare
- Faculty of Dental Medicine, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania; (V.T.A.); (A.D.F.); (A.P.); (D.J.)
| | - Antonis Perdiou
- Faculty of Dental Medicine, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania; (V.T.A.); (A.D.F.); (A.P.); (D.J.)
| | - Daniela Jumanca
- Faculty of Dental Medicine, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania; (V.T.A.); (A.D.F.); (A.P.); (D.J.)
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Balázs VL, Horváth B, Kerekes E, Ács K, Kocsis B, Varga A, Böszörményi A, Nagy DU, Krisch J, Széchenyi A, Horváth G. Anti- Haemophilus Activity of Selected Essential Oils Detected by TLC-Direct Bioautography and Biofilm Inhibition. Molecules 2019; 24:molecules24183301. [PMID: 31514307 PMCID: PMC6767207 DOI: 10.3390/molecules24183301] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/05/2019] [Accepted: 09/10/2019] [Indexed: 01/31/2023] Open
Abstract
Essential oils (EOs) are becoming increasingly popular in medical applications because of their antimicrobial effect. Direct bioautography (DB) combined with thin layer chromatography (TLC) is a screening method for the detection of antimicrobial compounds in plant extracts, for example, in EOs. Due to their lipophilic character, the common microbiological assays (etc. disk diffusion) could not provide reliable results. The aim of this study was the evaluation of antibacterial and anti-biofilm properties of the EO of cinnamon bark, clove, peppermint, thyme, and their main components against Haemophilus influenzae and H. parainfluenzae. Oil in water (O/W) type Pickering nano-emulsions stabilized with silica nanoparticles from each oil were prepared to increase their water-solubility. Samples with Tween80 surfactant and absolute ethanol were also used. Results showed that H. influenzae was more sensitive to the EOs than H. parainfluenzae (except for cinnamon bark oil). In thin layer chromatography-direct bioautography (TLC-DB) the ethanolic solutions of thyme oil presented the best activity against H. influenzae, while cinnamon oil was the most active against H. parainfluenzae. Pickering nano-emulsion of cinnamon oil inhibited the biofilm formation of H. parainfluenzae (76.35%) more efficiently than samples with Tween80 surfactant or absolute ethanol. In conclusion, Pickering nano-emulsion of EOs could inhibit the biofilm production effectively.
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Affiliation(s)
- Viktória Lilla Balázs
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (V.L.B.)
| | - Barbara Horváth
- Institute of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (B.H.); (A.S.)
| | - Erika Kerekes
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Hungary;
| | - Kamilla Ács
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (V.L.B.)
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, H-7624 Pécs, Hungary; (B.K.); (A.V.)
| | - Adorján Varga
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, H-7624 Pécs, Hungary; (B.K.); (A.V.)
| | - Andrea Böszörményi
- Institute of Pharmacognosy, Faculty of Pharmacy, Semmelweis University, H-1085 Budapest, Hungary;
| | - Dávid U. Nagy
- Department of Genetics and Molecular Biology, Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary;
| | - Judit Krisch
- Department of Food Engineering, Faculty of Engineering, University of Szeged, H-6724 Szeged, Hungary;
| | - Aleksandar Széchenyi
- Institute of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (B.H.); (A.S.)
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624 Pécs, Hungary; (V.L.B.)
- Correspondence: ; Tel.: +36-72-503-625 (ext. 28823)
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Wińska K, Mączka W, Łyczko J, Grabarczyk M, Czubaszek A, Szumny A. Essential Oils as Antimicrobial Agents-Myth or Real Alternative? Molecules 2019; 24:molecules24112130. [PMID: 31195752 PMCID: PMC6612361 DOI: 10.3390/molecules24112130] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 02/07/2023] Open
Abstract
Herbs and the essential oils derived from them have been used from the beginning of human history for different purposes. Their beneficial properties have been applied to mask unpleasant odors, attract the attention of other people, add flavor and aroma properties to prepared dishes, perfumes, and cosmetics, etc. Herbs and essential oils (EOs) have also been used in medicine because of their biological properties, such as larvicidal action, analgesic and anti-inflammatory properties, antioxidant, fungicide, and antitumor activities, and many more. Many EOs exhibit antimicrobial properties, which is extremely important in fields of science and industry, such as medicine, agriculture, or cosmetology. Among the 250 EOs which are commercially available, about a dozen possess high antimicrobial potential. According to available papers and patents, EOs seem to be a potential alternative to synthetic compounds, especially because of the resistance that has been increasingly developed by pathogenic microorganisms. In this review we summarize the latest research studies about the most-active EOs that are known and used because of their antimicrobial properties. Finally, it is noteworthy that the antimicrobial activities of EOs are not preeminent for all strains. Further investigations should, thus, focus on targeting EOs and microorganisms.
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Affiliation(s)
- Katarzyna Wińska
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Wanda Mączka
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Jacek Łyczko
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Małgorzata Grabarczyk
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Anna Czubaszek
- Department of Fermentation and Cereals Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630 Wrocław, Poland.
| | - Antoni Szumny
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
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Amat S, Baines D, Timsit E, Hallewell J, Alexander TW. Essential oils inhibit the bovine respiratory pathogens Mannheimia haemolytica, Pasteurella multocida and Histophilus somni and have limited effects on commensal bacteria and turbinate cells in vitro. J Appl Microbiol 2019; 126:1668-1682. [PMID: 30817050 DOI: 10.1111/jam.14238] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/12/2019] [Accepted: 02/25/2019] [Indexed: 11/28/2022]
Abstract
AIMS The objective of this study was to determine antimicrobial activities of essential oils (EOs) against bovine respiratory disease (BRD) pathogens and nasopharyngeal commensal bacteria, as well as cytotoxicity in bovine turbinate (BT) cells in vitro. METHODS AND RESULTS The chemical composition of 16 EOs was determined using gas chromatography-mass spectrometry. All EOs were first evaluated for growth inhibition of a single BRD pathogen Mannheimia haemolytica serotype 1 strain (L024A). The most inhibitory EOs (n = 6) were then tested for antimicrobial activity against multidrug-resistant strains of M. haemolytica (serotypes 1, 2 and 6); the BRD pathogens Pasteurella multocida and Histophilus somni, as well as commensal bacteria that were isolated from the nasopharynx of feedlot cattle. The cytotoxicity of 10 EOs was also evaluated using a BT cell line. The EOs ajowan, thyme and fennel most effectively inhibited all BRD pathogens tested including multidrug-resistant strains with minimum inhibitory concentrations (MIC) of ≤0·025% (volume/volume, v/v). For these EOs, the MIC was 2-32 fold greater against commensal bacteria, compared to BRD-associated pathogens. No cytotoxic effects of EOs against BT cells were observed within the tested range of concentrations (0·0125-0·4%, v/v). CONCLUSIONS The EOs ajowan, thyme and fennel inhibited M. haemolytica, P. multocida and H. somni at a concentration of 0·025% and had minimal antimicrobial activity against nasopharyngeal commensal bacteria and cytotoxicity against BT cells. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrated that EOs may have potential for intra-nasal administration to mitigate bovine respiratory pathogens in feedlot cattle.
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Affiliation(s)
- S Amat
- Agriculture and Agri-Food Canada, Lethbridge, AB, Canada.,Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - D Baines
- Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - E Timsit
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.,Simpson Ranch Chair in Beef Cattle Health and Wellness, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - J Hallewell
- Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - T W Alexander
- Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
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23
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Aguiar F, Solarte A, Tarradas C, Gómez‐Gascón L, Astorga R, Maldonado A, Huerta B. Combined effect of conventional antimicrobials with essential oils and their main components against resistant
Streptococcus suis
strains. Lett Appl Microbiol 2019; 68:562-572. [DOI: 10.1111/lam.13151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
Affiliation(s)
- F.C. Aguiar
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
| | - A.L. Solarte
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
- Medicine Faculty University Cooperative of Colombia Pasto Colombia
| | - C. Tarradas
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
| | - L. Gómez‐Gascón
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
| | - R. Astorga
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
| | - A. Maldonado
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
| | - B. Huerta
- Departamento de Sanidad Animal Universidad de Córdoba International Excellence Agrifood Campus ‘CeiA3’ Córdoba Spain
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24
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Suschke U, Sporer F, Schneele J, Geiss HK, Reichling J. Antibacterial and Cytotoxic Activity of Nepeta Cataria L., N. Cataria Var. Citriodora (Beck.) Balb. and Melissa Officinalis L. Essential Oils. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700201218] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The aim of the present study was to investigate the susceptibility of bacteria that play a role in respiratory tract and skin infections to the essential oils of catnip (Nepeta cataria), lemon catnip (N. cataria var. citriodora) and lemon balm (Melissa officinalis) with regard to their chemical composition. In addition, we wanted to assess whether antibiotic-resistant and -sensitive strains differ in their susceptibility to the oils and if there are cross resistances between standard antibiotics and essential oils. To evaluate the safety of topical application, cytotoxicity of the oils was studied in human keratinocyte and bronchial epithelial cell lines and irritation threshold concentrations were determined in ovo using the HET-CAM-test. The composition of the essential oils was analyzed by GC and GC-MS. Their MICs and MBCs were determined by a broth microdilution method against both reference strains from culture collections and clinical isolates with different susceptibility to standard antibiotics. Cytotoxicity was assessed by the MTT assay. Except for P. aeruginosa (MIC ≥2%), all reference strains tested were susceptible to catnip and lemon balm oils with MIC values ranging from 0.016 % to 0.25% (v/v). The clinical isolates were as susceptible to the oils (± 1 serial dilution) as the corresponding reference strains, regardless of their origin and resistance to standard antibiotics. The oils were cytotoxic to both keratinocytes and bronchial epithelial cells at CC50 values from 0.0012% to 0.015% (v/v). Lemon balm oil, whose main components were monoterpene aldehydes, exhibited the highest antibacterial and cytotoxic activity, followed by lemon catnip oil, which contained mainly monoterpene alcohols, and catnip oil, which was characterized by nepetalactones. Our results provide a rationale for the use of catnip, lemon catnip and lemon balm oils in the complementary topical treatment of respiratory tract infections, as the oils show a high antibacterial activity against respiratory tract pathogens, including clinical isolates with reduced susceptibility to standard antibiotics. However, cytotoxicity must be considered in topical therapy.
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Affiliation(s)
- Ulrike Suschke
- Institute of Pharmacy and Molecular Biotechnology, Department of Biology, University of Heidelberg, INF 364, 69120 Heidelberg, Germany
| | - Frank Sporer
- Institute of Pharmacy and Molecular Biotechnology, Department of Biology, University of Heidelberg, INF 364, 69120 Heidelberg, Germany
| | - Jürgen Schneele
- Institute of Pharmacy and Molecular Biotechnology, Department of Biology, University of Heidelberg, INF 364, 69120 Heidelberg, Germany
| | - Heinrich Konrad Geiss
- Hygiene Institute, Department of Medicinal Microbiology, University of Heidelberg, INF 324, 69120 Heidelberg, Germany
| | - Jürgen Reichling
- Institute of Pharmacy and Molecular Biotechnology, Department of Biology, University of Heidelberg, INF 364, 69120 Heidelberg, Germany
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25
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Ahmed J, Altun E, Aydogdu MO, Gunduz O, Kerai L, Ren G, Edirisinghe M. Anti-fungal bandages containing cinnamon extract. Int Wound J 2019; 16:730-736. [PMID: 30767437 PMCID: PMC6849878 DOI: 10.1111/iwj.13090] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/09/2019] [Accepted: 01/14/2019] [Indexed: 02/04/2023] Open
Abstract
Cinnamon‐containing polycaprolactone (PCL) bandages were produced by pressurised gyration and their anti‐fungal activities against Candida albicans were investigated. It was found that by preparing and spinning polymer solutions of cinnamon with PCL, fibres capable of inhibiting fungal growth could be produced, as observed in disk diffusion tests for anti‐fungal susceptibility. Fascinatingly, compared with raw cinnamon powder, the novel cinnamon‐loaded fibres had outstanding long‐term activity. The results presented here are very promising and may indeed accelerate a new era of using completely natural materials in biomedical applications, especially in wound healing.
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Affiliation(s)
- Jubair Ahmed
- Department of Mechanical Engineering, University College London, London, UK
| | - Esra Altun
- Department of Metallurgical and Materials Engineering, University of Marmara, Istanbul, Turkey
| | - Mehmet O Aydogdu
- Department of Metallurgical and Materials Engineering, University of Marmara, Istanbul, Turkey
| | - Oguzhan Gunduz
- Department of Metallurgical and Materials Engineering, University of Marmara, Istanbul, Turkey
| | - Laxmi Kerai
- School of Life and Medical Sciences, University of Hertfordshire, Hertfordshire, UK
| | - Guogang Ren
- School of Engineering and Technology, University of Hertfordshire, Hertfordshire, UK
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, London, UK
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26
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El amrani S, El Ouali Lalami A, Ez zoubi Y, Moukhafi K, Bouslamti R, Lairini S. Evaluation of antibacterial and antioxidant effects of cinnamon and clove essential oils from Madagascar. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2019.04.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Gallardo-Vásquez GJ, Chávez-Flores JE, Contreras-Torvisco M. Evaluación del efecto antibacteriano del látex de Jatropha curcas “piñón” frente a Staphylococcus aureus. DUAZARY 2019. [DOI: 10.21676/2389783x.2533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
La presente investigación tuvo como objetivo evaluar el efecto antibacteriano del látex de Jatropha Curcas “Piñón” frente a Staphylococcus aureus. El método de difusión en disco, de Kirby Bauer, fue usado en la investigación; las concentraciones del látex de Jatropha Curcas “Piñón” fueron las siguientes: 10%, 20%, 30%, 40% y 100% usando agua destilada como solvente. Se realizó análisis fitoquímico y prueba de solubilidad al látex de la planta en estudio. El látex de Jatropha Curcas “Piñón” fue muy soluble en agua destilada, etanol y metanol; además, según el análisis fitoquímico, el látex presentó flavonoides, taninos, compuestos fenólicos, alcaloides y esteroides. La concentración del látex al 40 % presentó el mayor efecto antibacteriano a un nivel de confianza del 95%, y un error relativo del 5%.
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28
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Köteles F, Babulka P, Szemerszky R, Dömötör Z, Boros S. Inhaled peppermint, rosemary and eucalyptus essential oils do not change spirometry in healthy individuals. Physiol Behav 2018; 194:319-323. [DOI: 10.1016/j.physbeh.2018.06.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 06/14/2018] [Accepted: 06/14/2018] [Indexed: 10/14/2022]
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29
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Anti-inflammatory and antibacterial evaluation of Thymus sipyleus Boiss. subsp. sipyleus var. sipyleus essential oil against rhinosinusitis pathogens. Microb Pathog 2018; 122:117-121. [DOI: 10.1016/j.micpath.2018.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 06/06/2018] [Accepted: 06/12/2018] [Indexed: 11/18/2022]
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30
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Ács K, Balázs VL, Kocsis B, Bencsik T, Böszörményi A, Horváth G. Antibacterial activity evaluation of selected essential oils in liquid and vapor phase on respiratory tract pathogens. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:227. [PMID: 30053847 PMCID: PMC6064118 DOI: 10.1186/s12906-018-2291-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/18/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND The increasing number of multidrug-resistant bacteria and the fact of antibiotic resistance is leading to a continuous need for discovering alternative treatments against infections, e.g. in the case of respiratory tract diseases. Essential oils (EOs), because of their volatility, can easily reach both the upper and lower parts of the respiratory tract via inhalation. Therefore, the aim of the present study was the antibacterial evaluation of clove, cinnamon bark, eucalyptus, thyme, scots pine, peppermint, and citronella EOs against respiratory tract pathogens such as Streptococcus pneumoniae, S. mutans, S. pyogenes, Haemophilus influenzae, H. parainfluenzae, and Moraxella catarrhalis. Furthermore, we wanted to compare the antibacterial effect of these EOs in two different test systems to provide data for the development of an appropriate product formulation. METHODS Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined with in vitro vapor phase test (VPT) and broth macrodilution test (BDT). The chemical and percentage compositions of the EOs were determined by GC-MS and GC-FID analysis. RESULTS Among the EOs, thyme was the most effective against S. mutans (MIC: 0.04 mg/mL in BDT, but cinnamon bark and clove oils also presented high inhibition in liquid medium with MIC values of 0.06 mg/mL and 0.1 mg/mL against S. pneumoniae and S. pyogenes, respectively. M. catarrhalis was the most sensitive to thyme EO (MIC: 0.09 mg/mL). Cinnamon bark EO was the most effective against Haemophilus spp. (MIC: 0.06 mg/mL). In the VPT, cinnamon bark was the most effective oil against all investigated pathogens with MIC values in the range of 15.62-90 μl/L. Surprisingly, the eucalyptus and scots pine showed weak activity against the test bacteria in both test systems. CONCLUSIONS The EO of thyme, clove and cinnamon bark may provide promising antibacterial activity against respiratory tract pathogens either in liquid medium or in vapor phase. However, their effect is lower than that of the reference antibiotics. The combination of EOs and antibiotics may be beneficial in the alternative treatment of respiratory tract diseases. In vivo studies are necessary to calculate the effective dose of EOs in patients and determine their possible side effects and toxicity.
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Affiliation(s)
- Kamilla Ács
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624 Hungary
| | - Viktória L. Balázs
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624 Hungary
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary
| | - Tímea Bencsik
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624 Hungary
| | - Andrea Böszörményi
- Department of Pharmacognosy, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624 Hungary
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31
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An Overview on Citrus aurantium L.: Its Functions as Food Ingredient and Therapeutic Agent. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:7864269. [PMID: 29854097 PMCID: PMC5954905 DOI: 10.1155/2018/7864269] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/24/2018] [Accepted: 04/01/2018] [Indexed: 01/01/2023]
Abstract
Citrus aurantium L. (Rutaceae), commonly known as bitter orange, possesses multiple therapeutic potentials. These biological credentials include anticancer, antianxiety, antiobesity, antibacterial, antioxidant, pesticidal, and antidiabetic activities. The essential oil of C. aurantium was reported to display marked pharmacological effects and great variation in chemical composition depending on growing locations but mostly contained limonene, linalool, and β-myrcene. Phytochemically, C. aurantium is rich in p-synephrine, an alkaloid, and many health-giving secondary metabolites such as flavonoids. Animal studies have demonstrated a low affinity of p-synephrine for adrenergic receptors and an even lower affinity in human models. The present review focuses on the different biological activities of the C. aurantium in animal and human models in the form of extract and its pure secondary metabolites. Finally, it is concluded that both the extract and isolated compounds have no unwanted effects in human at therapeutic doses and, therefore, can confidently be used in various dietary formulations.
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de Aguiar FC, Solarte AL, Tarradas C, Luque I, Maldonado A, Galán-Relaño Á, Huerta B. Antimicrobial activity of selected essential oils against Streptococcus suis isolated from pigs. Microbiologyopen 2018; 7:e00613. [PMID: 29575822 PMCID: PMC6291787 DOI: 10.1002/mbo3.613] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/01/2018] [Indexed: 12/03/2022] Open
Abstract
The inhibitory potential by contact and vapor of basil, cinnamon, clove, peppermint, oregano, rosemary, common thyme, and red thyme essential oils (EOs) against 20 strains of Streptococcus suis was determined by the disk diffusion test. The broth microdilution method was used to determine the minimal inhibitory and minimal bactericidal concentration (MIC and MBC) of the four selected oils. Furthermore, the bactericidal power (ratio MBC/MIC) was calculated. The EOs with the major potential in the disk diffusion method were red thyme, common thyme, oregano, and cinnamon (∅ mean 16.5–34.2 mm), whereas cinnamon did not show vapor activity. In the microdilution test, all the EOs showed notable antimicrobial activity (MIC90 and MBC90 312.5–625 μg·ml−1) and a strong bactericidal power (ratio = 1). This is the first study that selects essential oils against S. suis. New studies about the possible synergic effect of EOs with antibiotics and about toxicity and efficacy in in vivo conditions are recommended.
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Affiliation(s)
- Fabiana C de Aguiar
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
| | - Ana Lucía Solarte
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
| | - Carmen Tarradas
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
| | - Inmaculada Luque
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
| | - Alfonso Maldonado
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
| | - Ángela Galán-Relaño
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
| | - Belén Huerta
- Departamento de Sanidad Animal, Universidad de Córdoba, International Excellence Agrifood Campus 'CeiA3', Córdoba, Spain
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Adegoke AA, Stenström TA, Okoh AI. Stenotrophomonas maltophilia as an Emerging Ubiquitous Pathogen: Looking Beyond Contemporary Antibiotic Therapy. Front Microbiol 2017; 8:2276. [PMID: 29250041 PMCID: PMC5714879 DOI: 10.3389/fmicb.2017.02276] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022] Open
Abstract
Stenotrophomonas maltophilia is a commensal and an emerging pathogen earlier noted in broad-spectrum life threatening infections among the vulnerable, but more recently as a pathogen in immunocompetent individuals. The bacteria are consistently being implicated in necrotizing otitis, cutaneous infections including soft tissue infection and keratitis, endocarditis, meningitis, acute respiratory tract infection (RTI), bacteraemia (with/without hematological malignancies), tropical pyomyositis, cystic fibrosis, septic arthritis, among others. S. maltophilia is also an environmental bacteria occurring in water, rhizospheres, as part of the animals' microflora, in foods, and several other microbiota. This review highlights clinical reports on S. maltophilia both as an opportunistic and as true pathogen. Also, biofilm formation as well as quorum sensing, extracellular enzymes, flagella, pili/fimbriae, small colony variant, other virulence or virulence-associated factors, the antibiotic resistance factors, and their implications are considered. Low outer membrane permeability, natural MDR efflux systems, and/or resistance genes, resistance mechanisms like the production of two inducible chromosomally encoded β-lactamases, and lack of carefully compiled patient history are factors that pose great challenges to the S. maltophilia control arsenals. The fluoroquinolone, some tetracycline derivatives and trimethoprim-sulphamethaxole (TMP-SMX) were reported as effective antibiotics with good therapeutic outcome. However, TMP-SMX resistance and allergies to sulfa together with high toxicity of fluoroquinolone are notable setbacks. S. maltophilia's production and sustenance of biofilm by quorum sensing enhance their virulence, resistance to antibiotics and gene transfer, making quorum quenching an imperative step in Stenotrophomonas control. Incorporating several other proven approaches like bioengineered bacteriophage therapy, Epigallocatechin-3-gallate (EGCG), essential oil, nanoemulsions, and use of cationic compounds are promising alternatives which can be incorporated in Stenotrophomonas control arsenal.
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Affiliation(s)
- Anthony A Adegoke
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa.,Applied and Environmental Microbiology Research Group, University of Fort Hare, Alice, South Africa.,SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
| | - Thor A Stenström
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa
| | - Anthony I Okoh
- Applied and Environmental Microbiology Research Group, University of Fort Hare, Alice, South Africa.,SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
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Amat S, Baines D, Alexander T. A vapour phase assay for evaluating the antimicrobial activities of essential oils against bovine respiratory bacterial pathogens. Lett Appl Microbiol 2017; 65:489-495. [DOI: 10.1111/lam.12804] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 08/15/2017] [Accepted: 08/15/2017] [Indexed: 01/14/2023]
Affiliation(s)
- S. Amat
- Agriculture and Agri-Food Canada; Lethbridge AB Canada
- Department of Production Animal Health; Faculty of Veterinary Medicine; University of Calgary; Calgary AB Canada
| | - D. Baines
- Agriculture and Agri-Food Canada; Lethbridge AB Canada
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Quatrin PM, Verdi CM, de Souza ME, de Godoi SN, Klein B, Gundel A, Wagner R, de Almeida Vaucher R, Ourique AF, Santos RCV. Antimicrobial and antibiofilm activities of nanoemulsions containing Eucalyptus globulus oil against Pseudomonas aeruginosa and Candida spp. Microb Pathog 2017; 112:230-242. [PMID: 28970174 DOI: 10.1016/j.micpath.2017.09.062] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 11/26/2022]
Abstract
Candida species are the main responsible microorganisms for causing fungal infections worldwide, and Candida albicans is most frequently associated with infectious processes. Pseudomonas aeruginosa is a gram-negative bacterium commonly found in immunocompromised patients. The infection persistence caused by these microorganisms is often related to antimicrobial resistance and biofilm formation. In this context, the objective of the present study was to prepare and characterize nanoemulsions containing Eucalyptus globulus oil and to verify its antimicrobial and antibiofilm activities against P. aeruginosa and Candida spp. The nanoemulsions had a size of approximately 76 nm, a polydispersity index of 0.22, a zeta potential of - 9,42 mV and a pH of approximately 5.0. The E. globulus oil was characterized by gas chromatography, being possible to observe its main components, such as 1-8-Cineol (75.8%), p- Cymene (7.5%), α-Pinene (7.4%) and Limonene (6.4%). The antimicrobial activity of the nanoemulsion was determined from the macrodilution tests and the cell viability curve, where the minimum fungicidal concentration of 0.7 mg/mL for C. albicans and 1.4 mg/mL for C. tropicalis and C. glabrata were obtained. However, the nanoemulsions did not present antimicrobial activity against P. aeruginosa, since it contains only 5% of the oil, being ineffective for this microorganism. The nanoencapsulated oil action against the formed biofilm was evaluated by atomic force microscopy and calcofluor staining, and the nanoemulsion was more efficient for two of the three Candida species when compared to free oil.
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Affiliation(s)
- Priscilla Maciel Quatrin
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Camila Marina Verdi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Márcia Ebling de Souza
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Samantha Nunes de Godoi
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Bruna Klein
- Departamento de Tecnologia e Ciência dos Alimentos, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | - Roger Wagner
- Departamento de Tecnologia e Ciência dos Alimentos, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | - Aline Ferreira Ourique
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Roberto Christ Vianna Santos
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Brazil.
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Markelova NN, Semenova EF. Sensitivity of nonfermentative gram-negative bacteria to essential oils of different origin. Microbiology (Reading) 2017. [DOI: 10.1134/s0026261717050150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Blake K, Raissy H. Inhaling Essential Oils: Purported Benefits and Harms. PEDIATRIC ALLERGY, IMMUNOLOGY, AND PULMONOLOGY 2017; 30:186-188. [PMID: 35923005 DOI: 10.1089/ped.2017.0805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Patients with cystic fibrosis are experimenting with inhaling essential oils (scientifically described as random plant-derived secondary metabolites) through diffusers or nebulizers as a form of natural therapy to treat chronic lung infections. In vitro studies are starting to be published on the effects of essential oils (cinnamon, clove, oregano, and thyme) on bacteria commonly found in the lungs of patients with cystic fibrosis. There are no clinical studies and therefore no data are available on a potential placebo effect. There is a potential risk of lipoid pneumonia with inhaling essential oils, although no case reports have been published. There is also potential for pesticide exposure, particularly with peppermint oil. Treating providers are encouraged to include discussion of the use of herbal and other natural remedies with their patients and patient caregivers.
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Affiliation(s)
- Kathryn Blake
- Biomedical Research Department, Center for Pharmacogenomics and Translational Research, Nemours Children's Specialty Care, Jacksonville, Florida
| | - Hengameh Raissy
- Department of Pediatrics, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, New Mexico
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Marchese A, Barbieri R, Coppo E, Orhan IE, Daglia M, Nabavi SF, Izadi M, Abdollahi M, Nabavi SM, Ajami M. Antimicrobial activity of eugenol and essential oils containing eugenol: A mechanistic viewpoint. Crit Rev Microbiol 2017; 43:668-689. [PMID: 28346030 DOI: 10.1080/1040841x.2017.1295225] [Citation(s) in RCA: 255] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Eugenol is a hydroxyphenyl propene, naturally occurring in the essential oils of several plants belonging to the Lamiaceae, Lauraceae, Myrtaceae, and Myristicaceae families. It is one of the major constituents of clove (Syzygium aromaticum (L.) Merr. & L.M. Perry, Myrtaceae) oil and is largely used in both foods and cosmetics as a flavoring agent. A large body of recent scientific evidence supports claims from traditional medicine that eugenol exerts beneficial effects on human health. These effects are mainly associated with antioxidant and anti-inflammatory activities. Eugenol has also shown excellent antimicrobial activity in studies, being active against fungi and a wide range of gram-negative and gram-positive bacteria. The aim of this review is to analyze scientific data from the main published studies describing the antibacterial and antifungal activities of eugenol targeting different kind of microorganisms, such as those responsible for human infectious diseases, diseases of the oral cavity, and food-borne pathogens. This article also reports the effects of eugenol on multi-drug resistant microorganisms. On the basis of this collected data, eugenol represents a very interesting bioactive compound with broad spectrum antimicrobial activity against both planktonic and sessile cells belonging to food-decaying microorganisms and human pathogens.
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Affiliation(s)
- Anna Marchese
- a Sezione di Microbiologia DISC-IRCCS San Martino-IST University of Genoa , Genoa , Italy
| | - Ramona Barbieri
- b Sezione di Microbiologia DISC University of Genoa , Genoa , Italy
| | - Erika Coppo
- b Sezione di Microbiologia DISC University of Genoa , Genoa , Italy
| | - Ilkay Erdogan Orhan
- c Department of Pharmacognosy, Faculty of Pharmacy , Gazi University , Ankara , Turkey
| | - Maria Daglia
- d Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section , University of Pavia , Pavia , Italy
| | - Seyed Fazel Nabavi
- e Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Morteza Izadi
- f Health Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Mohammad Abdollahi
- g Toxicology and Diseases Group , Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences , Tehran , Iran
| | - Seyed Mohammad Nabavi
- e Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Marjan Ajami
- h Faculty of Nutrition Science and Food Technology , National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences , Tehran , Iran
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Shalayel MHF, Asaad AM, Qureshi MA, Elhussein AB. Anti-bacterial activity of peppermint ( Mentha piperita ) extracts against some emerging multi-drug resistant human bacterial pathogens. J Herb Med 2017. [DOI: 10.1016/j.hermed.2016.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bona E, Cantamessa S, Pavan M, Novello G, Massa N, Rocchetti A, Berta G, Gamalero E. Sensitivity of Candida albicans to essential oils: are they an alternative to antifungal agents? J Appl Microbiol 2016; 121:1530-1545. [PMID: 27568869 DOI: 10.1111/jam.13282] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/14/2016] [Accepted: 08/25/2016] [Indexed: 11/30/2022]
Abstract
AIMS Candida albicans is an important opportunistic pathogen, responsible for the majority of yeast infections in humans. Essential oils, extracted from aromatic plants, are well-known antimicrobial agents, characterized by a broad spectrum of activities, including antifungal properties. The aim of this work was to assess the sensitivity of 30 different vaginal isolated strains of C. albicans to 12 essential oils, compared to the three main used drugs (clotrimazole, fluconazole and itraconazole). METHODS AND RESULTS Thirty strains of C. albicans were isolated from vaginal swab on CHROMagar™ Candida. The agar disc diffusion method was employed to determine the sensitivity to the essential oils. The antifungal activity of the essential oils and antifungal drugs (clotrimazole, itraconazole and fluconazole) were investigated using a microdilution method. Transmission and scanning electron microscopy analyses were performed to get a deep inside on cellular damages. Mint, basil, lavender, tea tree oil, winter savory and oregano essential oils inhibited both the growth and the activity of C. albicans more efficiently than clotrimazole. Damages induced by essential oils at the cellular level were stronger than those caused by clotrimazole. CONCLUSIONS Candida albicans is more sensitive to different essential oils compared to the main used drugs. Moreover, the essential oil affected mainly the cell wall and the membranes of the yeast. SIGNIFICANCE AND IMPACT OF THE STUDY The results of this work support the research for new alternatives or complementary therapies against vaginal candidiasis.
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Affiliation(s)
- E Bona
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - S Cantamessa
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - M Pavan
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - G Novello
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - N Massa
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - A Rocchetti
- Azienda Sanitaria Santi Antonio, Biagio e Cesare Arrigo, Alessandria, Italy
| | - G Berta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - E Gamalero
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
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Mukherjee P, Roy P. Genomic Potential of Stenotrophomonas maltophilia in Bioremediation with an Assessment of Its Multifaceted Role in Our Environment. Front Microbiol 2016; 7:967. [PMID: 27446008 PMCID: PMC4916776 DOI: 10.3389/fmicb.2016.00967] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 06/03/2016] [Indexed: 11/13/2022] Open
Abstract
The gram negative bacterium Stenotrophomonas is rapidly evolving as a nosocomial pathogen in immuno-compromised patients. Treatment of Stenotrophomonas maltophilia infections is problematic because of their increasing resistance to multiple antibiotics. This article aims to review the multi-disciplinary role of Stenotrophomonas in our environment with special focus on their metabolic and genetic potential in relation to bioremediation and phytoremediation. Current and emerging treatments and diagnosis for patients infected with S. maltophilia are discussed besides their capability of production of novel bioactive compounds. The plant growth promoting characteristics of this bacterium has been considered with special reference to secondary metabolite production. Nano-particle synthesis by Stenotrophomonas has also been reviewed in addition to their applications as effective biocontrol agents in plant and animal pathogenesis.
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Affiliation(s)
- Piyali Mukherjee
- Laboratory of Molecular Biology, Department of Biotechnology, Burdwan UniversityBurdwan, India
| | - Pranab Roy
- Department of Biotechnology, Haldia Institute of TechnologyHaldia, India
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Pesavento G, Maggini V, Maida I, Nostro AL, Calonico C, Sassoli C, Perrin E, Fondi M, Mengoni A, Chiellini C, Vannacci A, Gallo E, Gori L, Bogani P, Bilia AR, Campana S, Ravenni N, Dolce D, Firenzuoli F, Fani R. Essential Oil from Origanum vulgare Completely Inhibits the Growth of Multidrug-Resistant Cystic Fibrosis Pathogens. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100641] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Essential oils (EOs) are known to inhibit the growth of a wide range of microorganisms. Particularly interesting is the possible use of EOs to treat multidrug-resistant cystic fibrosis (CF) pathogens. We tested the essential oil (EO) from Origanum vulgare for in vitro antimicrobial activity, against three of the major human opportunistic pathogens responsible for respiratory infections in CF patients; these are methicillin-resistant Staphylococcus aureus, Stenotrophomonas maltophilia and Achromobacter xylosoxidans. Antibiotic susceptibility of each strain was previously tested by the standard disk diffusion method. Most strains were resistant to multiple antibiotics and could be defined as multi-drug-resistant (MDR). The antibacterial activity of O. vulgare EO (OEO) against a panel of 59 bacterial strains was evaluated, with MIC and MBC determined at 24, 48 and 72 hours by a microdilution method. The OEO was effective against all tested strains, although to a different extent. The MBC and MIC of OEO for S. aureus strains were either lower or equal to 0.50%, v/v, for A. xylosoxidans strains were lower or equal to 1% and 0.50%, v/v, respectively; and for S. maltophilia strains were lower or equal to 0.25%, v/v. The results from this study suggest that OEO might exert a role as an antimicrobial in the treatment of CF infections.
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Affiliation(s)
- Giovanna Pesavento
- Dept. of Health Sciences, University of Florence, Viale G. B. Morgagni, 48,1- 50134 Florence, Italy
| | - Valentina Maggini
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, Florence, Italy
| | - Isabel Maida
- Dept. of Biology, University of Florence, Via Madonna del Piano 6,1-50019 Sesto Fiorentino (Florence), Italy
| | - Antonella Lo Nostro
- Dept. of Health Sciences, University of Florence, Viale G. B. Morgagni, 48,1- 50134 Florence, Italy
| | - Carmela Calonico
- Dept. of Health Sciences, University of Florence, Viale G. B. Morgagni, 48,1- 50134 Florence, Italy
| | - Chiara Sassoli
- Dept. of Health Sciences, University of Florence, Viale G. B. Morgagni, 48,1- 50134 Florence, Italy
| | - Elena Perrin
- Dept. of Biology, University of Florence, Via Madonna del Piano 6,1-50019 Sesto Fiorentino (Florence), Italy
| | - Marco Fondi
- Dept. of Biology, University of Florence, Via Madonna del Piano 6,1-50019 Sesto Fiorentino (Florence), Italy
| | - Alessio Mengoni
- Dept. of Biology, University of Florence, Via Madonna del Piano 6,1-50019 Sesto Fiorentino (Florence), Italy
| | - Carolina Chiellini
- Consiglio per la ricerca in agricoltura e I ‘analisi dell ‘economia agraria, centro di ricerca perl ‘Agrobiologia ela Pedologia (CRA-ABP) PiazzaD'Azeglio 30,1-50121 Firenze, Italy
| | - Alfredo Vannacci
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, Florence, Italy
| | - Eugenia Gallo
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, Florence, Italy
| | - Luigi Gori
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, Florence, Italy
| | - Patrizia Bogani
- Dept. of Biology, University of Florence, Via Madonna del Piano 6,1-50019 Sesto Fiorentino (Florence), Italy
| | - Anna Rita Bilia
- Dept. of Chemistry UgoSchiff University of Florence, Via Ugo Schiff 6,1-50019 Sesto Fiorentino (Florence), Italy
| | - Silvia Campana
- Dept. of Paediatric Medicine Anna Meyer Children's University Hospital, Florence, Italy
| | - Novella Ravenni
- Dept. of Paediatric Medicine Anna Meyer Children's University Hospital, Florence, Italy
| | - Daniela Dolce
- Dept. of Paediatric Medicine Anna Meyer Children's University Hospital, Florence, Italy
| | - Fabio Firenzuoli
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, Florence, Italy
| | - Renato Fani
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, Florence, Italy
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Cirmi S, Bisignano C, Mandalari G, Navarra M. Anti-infective potential of Citrus bergamia Risso et Poiteau (bergamot) derivatives: a systematic review. Phytother Res 2016; 30:1404-11. [PMID: 27218799 DOI: 10.1002/ptr.5646] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/20/2016] [Accepted: 04/22/2016] [Indexed: 12/13/2022]
Abstract
Infectious diseases remain among the leading causes of morbidity and mortality worldwide, mainly because of the increase of resistance to chemotherapeutic drugs. Nature is the major source of anti-infective drugs and could represent a font of medicines that may help overcome antibiotic resistance. Recently, the potential antimicrobial effect of certain plant extracts has attracted attention within the scientific community as alternatives to synthetic drugs. Here, we present a systematic review on the anti-infective properties of bergamot derivatives that highlight the activity of bergamot essential oil against bacteria, mycetes and larvae, as well as the anti-Helicobacter pylori effect of bergamot juice and the antimicrobial properties of extracts from bergamot peel. Findings presented herein could be used to develop novel and alternative preventive and therapeutic strategies aimed to overcome antibiotic resistance. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Santa Cirmi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98168, Messina, Italy
| | - Carlo Bisignano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98168, Messina, Italy
| | - Giuseppina Mandalari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98168, Messina, Italy
| | - Michele Navarra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98168, Messina, Italy
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In vitro antibacterial activity and major bioactive components of Cinnamomum verum essential oils against cariogenic bacteria, Streptococcus mutans and Streptococcus sobrinus. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2016.01.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Abachi S, Lee S, Rupasinghe HPV. Molecular Mechanisms of Inhibition of Streptococcus Species by Phytochemicals. Molecules 2016; 21:E215. [PMID: 26901172 PMCID: PMC6273676 DOI: 10.3390/molecules21020215] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/04/2016] [Accepted: 02/06/2016] [Indexed: 12/11/2022] Open
Abstract
This review paper summarizes the antibacterial effects of phytochemicals of various medicinal plants against pathogenic and cariogenic streptococcal species. The information suggests that these phytochemicals have potential as alternatives to the classical antibiotics currently used for the treatment of streptococcal infections. The phytochemicals demonstrate direct bactericidal or bacteriostatic effects, such as: (i) prevention of bacterial adherence to mucosal surfaces of the pharynx, skin, and teeth surface; (ii) inhibition of glycolytic enzymes and pH drop; (iii) reduction of biofilm and plaque formation; and (iv) cell surface hydrophobicity. Collectively, findings from numerous studies suggest that phytochemicals could be used as drugs for elimination of infections with minimal side effects.
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Affiliation(s)
- Soheila Abachi
- Faculty of Agriculture, Dalhousie University, Truro, NS PO Box 550, Canada.
| | - Song Lee
- Faculty of Dentistry, Dalhousie University, Halifax, NS PO Box 15000, Canada.
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Gamboa-Gómez CI, Rocha-Guzmán NE, Gallegos-Infante JA, Moreno-Jiménez MR, Vázquez-Cabral BD, González-Laredo RF. Plants with potential use on obesity and its complications. EXCLI JOURNAL 2015; 14:809-31. [PMID: 26869866 PMCID: PMC4746997 DOI: 10.17179/excli2015-186] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 06/16/2015] [Indexed: 01/07/2023]
Abstract
Obesity is the most prevalent nutritional disease and a growing public health problem worldwide. This disease is a causal component of the metabolic syndrome related with abnormalities, including hyperglycemia, dyslipidemia, hypertension, inflammation, among others. There are anti-obesity drugs, affecting the fundamental processes of the weight regulation; however they have shown serious side effects, which outweigh their beneficial effects. Most recent studies on the treatment of obesity and its complications have focused on the potential role of different plants preparation that can exert a positive effect on the mechanisms involved in this pathology. For instance, anti-obesity effects of green tea and its isolated active principles have been reported in both in vitro (cell cultures) and in vivo (animal models) that possess healthy effects, decreasing adipose tissue through reduction of adipocytes differentiation and proliferation. A positive effect in lipid profile, and lipid and carbohydrates metabolisms were demonstrated as well. In addition, anti-inflammatory and antioxidant activities were studied. However, the consumption of green tea and its products is not that common in Western countries, where other plants with similar bioactivity predominate; nevertheless, the effect extension has not been analyzed in depth, despite of their potential as alternative treatment for obesity. In this review the anti-obesity potential and reported mechanisms of action of diverse plants such as: Camellia sinensis, Hibiscus sabdariffa, Hypericum perforatum, Persea americana, Phaseolus vulgaris, Capsicum annuum, Rosmarinus officinalis, Ilex paraguariensis, Citrus paradisi, Citrus limon, Punica granatum, Aloe vera, Taraxacum officinale and Arachis hypogaea is summarized. We consider the potential of these plants as natural alternative treatments of some metabolic alterations associated with obesity.
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Affiliation(s)
| | - Nuria E. Rocha-Guzmán
- Instituto Tecnológico de Durango, Felipe Pescador 1830 Ote., 34080 Durango, Dgo., México
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Oliveira PFD, Alves JM, Damasceno JL, Oliveira RAM, Dias HJ, Crotti AEM, Tavares DC. Cytotoxicity screening of essential oils in cancer cell lines. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.02.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Ruiz B, Flotats X. Citrus essential oils and their influence on the anaerobic digestion process: an overview. WASTE MANAGEMENT (NEW YORK, N.Y.) 2014; 34:2063-2079. [PMID: 25081855 DOI: 10.1016/j.wasman.2014.06.026] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 06/24/2014] [Accepted: 06/26/2014] [Indexed: 06/03/2023]
Abstract
Citrus waste accounts for more than half of the whole fruit when processed for juice extraction. Among valorisation possibilities, anaerobic digestion for methane generation appears to be the most technically feasible and environmentally friendly alternative. However, citrus essential oils can inhibit this biological process. In this paper, the characteristics of citrus essential oils, as well as the mechanisms of their antimicrobial effects and potential adaptation mechanisms are reviewed. Previous studies of anaerobic digestion of citrus waste under different conditions are presented; however, some controversy exists regarding the limiting dosage of limonene for a stable process (24-192 mg of citrus essential oil per liter of digester and day). Successful strategies to avoid process inhibition by citrus essential oils are based either on recovery or removal of the limonene, by extraction or fungal pre-treatment respectively.
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Affiliation(s)
- B Ruiz
- AINIA Technology Centre, Parque Tecnológico Valencia, Benjamin Franklin 5-11, E-46980 Paterna, Valencia, Spain.
| | - X Flotats
- GIRO Joint Research Unit IRTA-UPC, Department of Agrifood Engineering and Biotechnology, Universitat Politècnica de Catalunya - BarcelonaTECH, Parc Mediterrani de la Tecnología, Building D4, E-08860 Castelldefels, Barcelona, Spain.
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Yap PSX, Krishnan T, Yiap BC, Hu CP, Chan KG, Lim SHE. Membrane disruption and anti-quorum sensing effects of synergistic interaction between Lavandula angustifolia (lavender oil) in combination with antibiotic against plasmid-conferred multi-drug-resistant Escherichia coli. J Appl Microbiol 2014; 116:1119-28. [PMID: 24779580 DOI: 10.1111/jam.12444] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 01/03/2014] [Accepted: 01/07/2014] [Indexed: 12/16/2022]
Abstract
AIM The aim of this study was to investigate the mode of action of the lavender essential oil (LV) on antimicrobial activity against multi-drug-resistant Escherichia coli J53 R1 when used singly and in combination with piperacillin. METHOD AND RESULTS In the time-kill analysis, a complete killing of bacteria was observed based on colony counts within 4 h when LV was combined with piperacillin during exposure at determined FIC concentrations. Analysis of the membrane permeabilizing effects of LV on treated cultures through their stability against sodium dodecyl sulphate revealed that the LV played a role in disrupting the bacterial cell membrane. The finding is further supported by scanning electron microscopy analysis and zeta potential measurement. In addition, reduction in light production expression of E. coli [pSB1075] by the LV showed the presence of potential quorum sensing (QS) inhibitors. CONCLUSIONS These results indicated that the LV has the potential to reverse bacterial resistance to piperacillin in E. coli J53 R1. It may operate via two mechanisms: alteration of outer membrane permeability and inhibition of bacterial QS. SIGNIFICANCE AND IMPACT OF THE STUDY These findings offer a novel approach to develop a new option of phytopharmaceuticals against multi-drug-resistant E. coli.
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Affiliation(s)
- P S X Yap
- School of Postgraduate Studies and Research, International Medical University, Kuala Lumpur, Malaysia
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Derbré S, Licznar-Fajardo P, Sfeir J. Intérêt des huiles essentielles dans les angines à Streptococcus pyogenes. ACTUALITES PHARMACEUTIQUES 2013. [DOI: 10.1016/j.actpha.2013.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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