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Preman NK, Amin N, Sanjeeva SG, Surya S, Kumar B S, Shenoy MM, Shastry RP, Johnson RP. Essential Oil Components Incorporated Emulsion Hydrogels for Eradicating Dermatophytosis Caused by Pathogenic Fungi Trichophyton mentagrophytes and Microsporum canis. Adv Healthc Mater 2024:e2400811. [PMID: 39138998 DOI: 10.1002/adhm.202400811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 08/01/2024] [Indexed: 08/15/2024]
Abstract
Dermatophytosis is a prevalent fungal infection and public health burden, majorly caused by the attack of zoophilic fungi genera of Trichophyton and Microsporum. Among them, T. mentagrophytes and M. canis are the dominating pathogens that cause dermatophytosis in humans. Though anti-fungal treatments are available, the widespread drug resistance and minimal efficacy of conventional therapies cause recurring infections. In addition, prolonged anti-fungal medications induce several systemic side effects, including hepatotoxicity and leucopenia. The anti-dermatophytic formulation of biocompatible essential oil components (EOCs) is attractive due to their highly potent anti-dermatophytic action. Herein, two EOCs, Eugenol (EU) and Isoeugenol (IU), incorporated emulsion hydrogel (EOCs-EHG) synthesized from hydroxypropylmethyl cellulose and poly(ethylene glycol) methyl ether methacrylate. The cytocompatibility of the hydrogels is confirmed by treating them with fibroblast and keratinocyte cell lines. The EOCs-EHG demonstrated pH and temperature-responsive sustained release of entrapped EOCs and inhibited fungal spore germination. T. mentagrophytes and M. canis biofilms are eradicated at a minimal inhibitory concentration of 2 µg mL-1 each of EU and IU. The in vivo anti-dermatophytic activity of EOCs-EHG is confirmed in dermatophyte-infected Wistar albino rat models. The topical application of EOCs-EHG demonstrated complete infection eradication and facilitated skin regeneration, emphasizing the therapeutic potential of EOCs-EHG against dermatophytosis.
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Affiliation(s)
- Namitha K Preman
- Polymer Nanobiomaterials Research Laboratory, Smart Materials and Devices (SMAD) Division, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Nikhitha Amin
- Department of Dermatology, Venereology and Leprosy, Yenepoya Medical College, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Sandesh G Sanjeeva
- Polymer Nanobiomaterials Research Laboratory, Smart Materials and Devices (SMAD) Division, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Suprith Surya
- Advanced Surgical Skill ENhancement Division (ASSEND), Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Sukesh Kumar B
- Division of Microbiology and Biotechnology, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Manjunath M Shenoy
- Department of Dermatology, Venereology and Leprosy, Yenepoya Medical College, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Rajesh P Shastry
- Division of Microbiology and Biotechnology, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Renjith P Johnson
- Polymer Nanobiomaterials Research Laboratory, Smart Materials and Devices (SMAD) Division, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
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2
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Weisany W, Yousefi S, Soufiani SP, Pashang D, McClements DJ, Ghasemlou M. Mesoporous silica nanoparticles: A versatile platform for encapsulation and delivery of essential oils for food applications. Adv Colloid Interface Sci 2024; 325:103116. [PMID: 38430728 DOI: 10.1016/j.cis.2024.103116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/14/2024] [Accepted: 02/17/2024] [Indexed: 03/05/2024]
Abstract
Essential oils (EOs) are biologically active and volatile substances that have found widespread applications in the food, cosmetics, and pharmaceutical industries. However, there are some challenges to their commercial utilization due to their high volatility, susceptibility to degradation, and hydrophobicity. In their free form, EOs can quickly evaporate, as well as undergo degradation reactions like oxidation, isomerization, dehydrogenation, or polymerization when exposed to light, heat, or air. Encapsulating EOs within mesoporous silica nanoparticles (MSNPs) could overcome these limitations and thereby broaden their usage. MSNPs may endow protection and slow-release properties to EOs, thereby extending their stability, enhancing their efficacy, and improving their dispersion in aqueous environments. This review explores and compares the design and development of different MSNP-based nanoplatforms to encapsulate, protect, and release EOs. Initially, a brief overview of the various types of available MSNPs, their properties, and their synthesis methods is given to better understand their roles as carriers for EOs. Several encapsulation technologies are then examined, including solvent-based and solvent-free methods. The suitability of each technology for EO encapsulation, as well as its impact on their stability and release, is discussed in detail. Opportunities and challenges for using EO-loaded MSNPs as preservatives, flavor enhancers, and antimicrobial agents in the food industry are then highlighted. Overall, this review aims to bridge a knowledge gap by providing a thorough understanding of EO encapsulation within MSNPs, which should facilitate the application of this technology in the food industry.
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Affiliation(s)
- Weria Weisany
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Shima Yousefi
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Solmaz Pourbarghi Soufiani
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Danial Pashang
- Department of Agriculture and Food Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - David Julian McClements
- Biopolymers & Colloids Research Laboratory, Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Mehran Ghasemlou
- School of Science, STEM College, RMIT University, Melbourne, VIC 3083, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, VIC 3216, Australia.
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Kazemi A, Iraji A, Esmaealzadeh N, Salehi M, Hashempur MH. Peppermint and menthol: a review on their biochemistry, pharmacological activities, clinical applications, and safety considerations. Crit Rev Food Sci Nutr 2024:1-26. [PMID: 38168664 DOI: 10.1080/10408398.2023.2296991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In this manuscript, we conducted a comprehensive review of the diverse effects of peppermint on human health and explored the potential underlying mechanisms. Peppermint contains three main groups of phytochemical constituents, including essential oils (mainly menthol), flavonoids (such as hesperidin, eriodictyol, naringenin, quercetin, myricetin, and kaempferol), and nonflavonoid phenolcarboxylic acids. Peppermint exhibits antimicrobial, antioxidant, anti-inflammatory, immunomodulatory, anti-cancer, anti-aging, and analgesic properties and may be effective in treating various disorders, including gastrointestinal disorders (e.g., irritable bowel syndrome, dyspepsia, constipation, functional gastrointestinal disorders, nausea/vomiting, and gallbladder stones). In addition, peppermint has therapeutic benefits for psychological and cognitive health, dental health, urinary retention, skin and wound healing, as well as anti-depressant and anti-anxiety effects, and it may improve memory. However, peppermint has paradoxical effects on sleep quality and alertness, as it has been shown to improve sleep quality in patients with fatigue and anxiety, while also increasing alertness under conditions of monotonous work and relaxation. We also discuss its protective effects against toxic agents at recommended doses, as well as its safety and potential toxicity. Overall, this review provides the latest findings and insights into the properties and clinical effects of peppermint/menthol and highlights its potential as a natural therapeutic agent for various health conditions.
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Affiliation(s)
- Asma Kazemi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aida Iraji
- Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Niusha Esmaealzadeh
- Department of Traditional Pharmacy, School of Persian Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Traditional Persian Medicine and Complementary Medicine (PerCoMed) Student Association, Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Salehi
- Traditional and Complementary Medicine Research Center (TCMRC), Department of Traditional Medicine, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Mohammad Hashem Hashempur
- Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Yousefian S, Esmaeili F, Lohrasebi T. A Comprehensive Review of the Key Characteristics of the Genus Mentha, Natural Compounds and Biotechnological Approaches for the Production of Secondary Metabolites. IRANIAN JOURNAL OF BIOTECHNOLOGY 2023; 21:e3605. [PMID: 38269203 PMCID: PMC10804064 DOI: 10.30498/ijb.2023.380485.3605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 07/16/2023] [Indexed: 01/26/2024]
Abstract
Context The genus Mentha is one of the most aromatic and well-known members of the Lamiaceae family. A wide range of bioactive compounds has been reported in mints. Regarding the high economic importance of Mentha plants due to the presence of valuable metabolites, the demand for their products is growing exponentially. Therefore, to supply such demand, new strategies should be adopted to improve the yield and medicinal quality of the products. Evidence Acquisition The current review is written based on scientific literature obtained from online databases, including Google Scholar, PubMed, Scopus, and Web of Science regarding the characteristic features of some species of the genus Mentha, their distribution and cultivation, main uses and benefits, phytochemical composition, biotechnological approaches for the production of secondary metabolites, and strategies for enhanced production of mints secondary metabolites. Results In this article, we offer an overview of the key characteristics, natural compounds, biological properties, and medicinal uses of the genus Mentha. Current research describes biotechnological techniques such as in vitro culture methods for the production of high-value secondary metabolites. This review also highlights the strategies such as elicitation, genetic, and metabolic engineering to improve the secondary compounds production level in mint plants. Overall, it can be concluded that identifying the biosynthetic pathways, leading to the accumulation of pharmaceutically important bioactive compounds, has paved the way for developing highly productive mint plants with improved phytochemical profiles.
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Affiliation(s)
| | | | - Tahmineh Lohrasebi
- Department of Plant Bioproducts, National Institude of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Ahmad I, Farheen M, Kukreti A, Afzal O, Akhter MH, Chitme H, Visht S, Altamimi AS, Alossaimi MA, Alsulami ER, Jaremko M, Emwas AH. Natural Oils Enhance the Topical Delivery of Ketoconazole by Nanoemulgel for Fungal Infections. ACS OMEGA 2023; 8:28233-28248. [PMID: 37576685 PMCID: PMC10413480 DOI: 10.1021/acsomega.3c01571] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/08/2023] [Indexed: 08/15/2023]
Abstract
Nanoemulgel (NEG) pharmaceutical formulations are gaining popularity because of their ability to serve both as a nanoemulsion and as a gel. These products are well-known for their ease of use, spreadability, controlled release, and ability to hydrate dry skin. Natural essential oils have been shown to promote the cutaneous permeability of topical formulations, enhancing medication safety and efficacy. Herein, we developed NEG for the enhanced permeation of ketoconazole against candidiasis using clove oil (clove-oil-NEG) or eucalyptus oil (eucalyptus-oil-NEG), using the gelling agents carbopol 943 and hydroxypropyl methylcellulose (HPMC). We tested various excipients to increase the solubility of ketoconazole and formulate a nanoemulsion (NE). We measured the NE droplet particle size, shape, entrapment efficiency, and drug release. Furthermore, the physicochemical properties of the optimized nanoemulsion formulation were characterized by techniques such as Fourier transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD) analysis. The NEs were loaded into gels to form NEGs. NEGs were characterized for drug content, homogeneity, rheology, spreadability, and antifungal activity against Candida albicans, both in vitro and in vivo. Optimized ketoconazole NEG preparations consisted of either 15% clove oil or 20% eucalyptus oil. Droplet sizes in the optimized NEs were <100 nm, and the polydispersity indexes were 0.24 and 0.26. The percentages of ketoconazole released after 24 h from the clove-oil-NEG and eucalyptus-oil-NEGs were 91 ± 4.5 and 89 ± 7%, respectively. Scanning electron microscopy (SEM) showed that the NEGs had a smooth, uniform, and consistent shape and internal structural organization. The drug contents in the clove-oil-NEG and eucalyptus-oil-NEG were 98.5 ± 2.2 and 98.8 ± 3.4%, respectively. Permeation values of ketoconazole from clove-oil-NEG and eucalyptus-oil-NEG were 117 ± 7 and 108.34 ± 6 μg cm-2, respectively. The ketoconazole NEG formulations also had higher levels of fungal growth inhibition than a marketed formulation. Finally, in vivo studies showed that the NEGs do not irritate the skin. Ketoconazole NEG with either 15% clove oil or 20% eucalyptus oil is stable with better efficacy than ketoconazole alone due to excellent dispersion, drug dissolution, and permeability and thus might be recommended for the effective and safe treatment of candidiasis.
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Affiliation(s)
- Irfan Ahmad
- Department
of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha 62521, Saudi Arabia
| | - Ms Farheen
- School
of Pharmaceutical and Population Health Informatics (SoPPHI), DIT University, Dehradun 248009, India
| | - Ashish Kukreti
- School
of Pharmaceutical and Population Health Informatics (SoPPHI), DIT University, Dehradun 248009, India
| | - Obaid Afzal
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Md Habban Akhter
- School
of Pharmaceutical and Population Health Informatics (SoPPHI), DIT University, Dehradun 248009, India
| | - Havagiray Chitme
- School
of Pharmaceutical and Population Health Informatics (SoPPHI), DIT University, Dehradun 248009, India
| | - Sharad Visht
- School
of Pharmaceutical and Population Health Informatics (SoPPHI), DIT University, Dehradun 248009, India
| | | | - Manal A. Alossaimi
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Ebtisam R. Alsulami
- Nursing
Department, Najran Armed Forces Hospital, Najran 66251, Saudi Arabia
| | - Mariusz Jaremko
- Smart-Health
Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological
and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
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Sardana K, Sharath S, Khurana A, Ghosh S. An update on the myriad antifungal resistance mechanisms in dermatophytes and the place of experimental and existential therapeutic agents for Trichophyton complex implicated in tinea corporis and cruris. Expert Rev Anti Infect Ther 2023; 21:977-991. [PMID: 37606343 DOI: 10.1080/14787210.2023.2250555] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/17/2023] [Indexed: 08/23/2023]
Abstract
INTRODUCTION There is an epidemic emergence of increased resistance in dermatophytes with to antifungal drugs with ergosterol1 (Erg1) and Erg11 mutations to terbinafine and azoles. Apart from mutations, mechanisms that predict clinical failure include efflux pumps, cellular kinases, heat shock proteins (Hsp), and biofilms. Apart from itraconazole and SUBATM (Super-Bioavailable) itraconazole, measures that can be used in terbinafine failure include efflux-pump inhibitors, Hsp inhibitors and judicious use of antifungal drugs (topical + systemic) combinations. AREAS COVERED A PubMed search was done for the relevant studies and reviews published in the last 22 years using keywords dermatophytes OR Trichophyton, anti-fungal, resistance, mechanism and fungal AND resistance mechanisms. Our aim was to look for literature on prevalent species and we specifically researched studies on Trichophyton genus. We have analyzed varied antifungal drug mechanisms and detailed varied experimental and approved drugs to treat recalcitrant dermatophytosis. EXPERT OPINION Apart from administering drugs with low minimum inhibitory concentration, combinations of oral and topical antifungals (based on synergy data) and new formulations of existing drugs are useful in recalcitrant cases. There is a need for research into resistance mechanism of the existent Trichophyton strains in therapeutic failures in tinea corporis & cruris instead of data derived from laboratory strains which may not mirror clinical failures.
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Affiliation(s)
- Kabir Sardana
- Department of Dermatology, Venereology and Leprosy, Atal Bihari Vajpayee Institute of Medical Sciences and Research Institute and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - Savitha Sharath
- Department of Dermatology, Venereology and Leprosy, Atal Bihari Vajpayee Institute of Medical Sciences and Research Institute and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - Ananta Khurana
- Department of Dermatology, Venereology and Leprosy, Atal Bihari Vajpayee Institute of Medical Sciences and Research Institute and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - Shamik Ghosh
- Rejuvenation Technologies Inc, Harvard Medical School, New York City, NY, USA
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Phenolic compounds and antimicrobial properties of mint and thyme. J Herb Med 2022. [DOI: 10.1016/j.hermed.2022.100604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zuzarte M, Salgueiro L. Essential Oils in Respiratory Mycosis: A Review. Molecules 2022; 27:molecules27134140. [PMID: 35807386 PMCID: PMC9268412 DOI: 10.3390/molecules27134140] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 01/08/2023] Open
Abstract
Respiratory mycosis is a major health concern, due to the expanding population of immunosuppressed and immunocompromised patients and the increasing resistance to conventional antifungals and their undesired side-effects, thus justifying the development of new therapeutic strategies. Plant metabolites, namely essential oils, represent promising preventive/therapeutic strategies due to their widely reported antifungal potential. However, regarding fungal infections of the respiratory tract, information is disperse and no updated compilation on current knowledge is available. Therefore, the present review aims to gather and systematize relevant information on the antifungal effects of several essential oils and volatile compounds against the main type of respiratory mycosis that impact health care systems. Particular attention is paid to Aspergillus fumigatus, the main pathogen involved in aspergillosis, Candida auris, currently emerging as a major pathogen in certain parts of the world, and Cryptococcus neoformans, one of the main pathogens involved in pulmonary cryptococcosis. Furthermore, the main mechanisms of action underlying essential oils’ antifungal effects and current limitations in clinical translation are presented. Overall, essential oils rich in phenolic compounds seem to be very effective but clinical translation requires more comprehensive in vivo studies and human trials to assess the efficacy and tolerability of these compounds in respiratory mycosis.
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Affiliation(s)
- Mónica Zuzarte
- Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, 3000-548 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra (CACC), 3000-548 Coimbra, Portugal
- Correspondence:
| | - Lígia Salgueiro
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal;
- Faculty of Sciences and Technology, Department of Chemical Engineering, Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, 3030-790 Coimbra, Portugal
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Pérez-Vázquez MAK, Pacheco-Hernández Y, Lozoya-Gloria E, Mosso-González C, Ramírez-García SA, Romero-Arenas O, Villa-Ruano N. Peppermint Essential Oil and Its Major Volatiles as Protective Agents against Soft Rot Caused by Fusarium sambucinum in Cera Pepper (Capsicum pubescens). Chem Biodivers 2021; 19:e202100835. [PMID: 34812593 DOI: 10.1002/cbdv.202100835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/18/2021] [Indexed: 12/15/2022]
Abstract
Cera pepper (Capsicum pubescens) is an exotic fruit considered as a rich source of nutraceuticals with known benefits for human health and also an economic resource for local producers in Mexico. The present investigation reports on the in vitro and in situ antifungal activity of the essential oil from Mentha piperita and its two major volatiles (menthol and menthone) against Fusarium sambucinum, which is a causal agent of soft rot in cera pepper. The application of these components in pepper fruits previously infected with F. sambucinum caused a significant delay (p<0.05) in the emergence of soft rot symptoms. This effect was reflected in the maintenance of pH and fruit firmness during a period of 10 days. The nutrimental content of the fruits (protein, fiber, fat and other proximate parameters) was conserved in the same period of time. The nutraceutical content of these fruits was estimated by the quantification of seven carotenoids (violaxanthin, cis-violaxanthin, luteoxanthin, antheraxanthin, lutein, zeaxanthin and β-carotene), ascorbic acid and capsaicinoids (capsaicin and dihydrocapsaicin). According to our results, the essential oil from M. Piperita and its major volatiles exerted a preservative effect on these metabolites. Our findings demonstrated that the essential oil of M. Piperita and its major volatiles represent an ecological alternative for the control of fusariosis caused by F. sambucinum in cera peppers under postharvest conditions.
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Affiliation(s)
- Marco Antonio Kevin Pérez-Vázquez
- Centro de Agroecología, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Km 1.7, carretera a San Baltazar Tetela, San Pedro Zacachimalpa, CP 72960, Puebla, México
| | - Yesenia Pacheco-Hernández
- Centro de Investigación en Biotecnología Aplicada-IPN, ex-hacienda San Juan Molino carretera estatal Tecuexcomac-Tepetitla Km 1.5, CP 90700, Tlaxcala, México
| | - Edmundo Lozoya-Gloria
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Km 9.6 Carretera Irapuato-León, CP 36824, Irapuato, Guanajuato, México
| | - Clemente Mosso-González
- CONACyT-Centro Regional de Investigación en Salud Pública (CRISP), 4a. Av. Nte. esquina 19, Norte, Centro, CP 30700, Tapachula, Chiapas, México
| | - Sergio A Ramírez-García
- Universidad de la Sierra Sur, Guillermo Rojas Mijangos, Col. Ciudad Universitaria, CP 70800, Miahuatlán de Porfirio Díaz, Oaxaca, México
| | - Omar Romero-Arenas
- Centro de Agroecología, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Km 1.7, carretera a San Baltazar Tetela, San Pedro Zacachimalpa, CP 72960, Puebla, México
| | - Nemesio Villa-Ruano
- CONACyT-Centro Universitario de Vinculación y Transferencia de Tecnología, Benemérita Universidad Autónoma de Puebla, Prolongación de la 24 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, CP 72570, Puebla, México
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10
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Brescini L, Fioriti S, Morroni G, Barchiesi F. Antifungal Combinations in Dermatophytes. J Fungi (Basel) 2021; 7:jof7090727. [PMID: 34575765 PMCID: PMC8469868 DOI: 10.3390/jof7090727] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
Dermatophytes are the most common cause of fungal infections worldwide, affecting millions of people annually. The emergence of resistance among dermatophytes along with the availability of antifungal susceptibility procedures suitable for testing antifungal agents against this group of fungi make the combinatorial approach particularly interesting to be investigated. Therefore, we reviewed the scientific literature concerning the antifungal combinations against dermatophytes. A literature search on the subject performed in PubMed yielded 68 publications: 37 articles referring to in vitro studies and 31 articles referring to case reports or clinical studies. In vitro studies involved over 400 clinical isolates of dermatophytes (69% Trichophyton spp., 29% Microsporum spp., and 2% Epidermophyton floccosum). Combinations included two antifungal agents or an antifungal agent plus another chemical compound including plant extracts or essential oils, calcineurin inhibitors, peptides, disinfectant agents, and others. In general, drug combinations yielded variable results spanning from synergism to indifference. Antagonism was rarely seen. In over 700 patients with documented dermatophyte infections, an antifungal combination approach could be evaluated. The most frequent combination included a systemic antifungal agent administered orally (i.e., terbinafine, griseofulvin, or azole-mainly itraconazole) plus a topical medication (i.e., azole, terbinafine, ciclopirox, amorolfine) for several weeks. Clinical results indicate that association of antifungal agents is effective, and it might be useful to accelerate the clinical and microbiological healing of a superficial infection. Antifungal combinations in dermatophytes have gained considerable scientific interest over the years and, in consideration of the interesting results available so far, it is desirable to continue the research in this field.
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Affiliation(s)
- Lucia Brescini
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, 60020 Ancona, Italy; (L.B.); (S.F.); (G.M.)
| | - Simona Fioriti
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, 60020 Ancona, Italy; (L.B.); (S.F.); (G.M.)
| | - Gianluca Morroni
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, 60020 Ancona, Italy; (L.B.); (S.F.); (G.M.)
| | - Francesco Barchiesi
- Dipartimento di Scienze Biomediche e Sanità Pubblica, Università Politecnica delle Marche, 60020 Ancona, Italy; (L.B.); (S.F.); (G.M.)
- Malattie Infettive, Azienda Ospedaliera Ospedali Riuniti Marche Nord, 61121 Pesaro, Italy
- Correspondence: ; Tel.: +39-721-36-5505
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11
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The Inhibition of Non- albicans Candida Species and Uncommon Yeast Pathogens by Selected Essential Oils and Their Major Compounds. Molecules 2021; 26:molecules26164937. [PMID: 34443525 PMCID: PMC8400735 DOI: 10.3390/molecules26164937] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 12/18/2022] Open
Abstract
The epidemiology of yeast infections and resistance to available antifungal drugs are rapidly increasing, and non-albicans Candida species and rare yeast species are increasingly emerging as major opportunistic pathogens. In order to identify new strategies to counter the threat of antimicrobial resistant microorganisms, essential oils (EOs) have become an important potential in the treatment of fungal infections. EOs and their bioactive pure compounds have been found to exhibit a wide range of remarkable biological activities. We investigated the in vitro antifungal activity of nine commercial EOs such as Thymus vulgaris (thyme red), Origanum vulgare (oregano), Lavandula vera (lavender), Pinus sylvestris (pine), Foeniculum vulgare (fennel), Melissa officinalis (lemon balm), Salvia officinalis (sage), Eugenia caryophyllata (clove) and Pelargonium asperum (geranium), and some of their main components (α-pinene, carvacrol, citronellal, eugenol, γ-terpinene, linalool, linalylacetate, terpinen-4-ol, thymol) against non-albicans Candida strains and uncommon yeasts. The EOs were analyzed by GC-MS, and their antifungal properties were evaluated by minimum inhibitory concentration and minimum fungicidal concentration parameters, in accordance with CLSI guidelines, with some modifications for EOs. Pine exhibited strong antifungal activity against the selected non-albicans Candida isolates and uncommon yeasts. In addition, lemon balm EOs and α-pinene exhibited strong antifungal activity against the selected non-albicans Candida yeasts. Thymol inhibited the growth of all uncommon yeasts. These data showed a promising potential application of EOs as natural adjuvant for management of infections by emerging non-albicans Candida species and uncommon pathogenic yeasts.
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Silva JDL, Pereira PS, Oliveira CVB, de Freitas MA, Silva JRDL, Costa AR, Oliveira-Tintino CDDM, Braga MFBM, Duarte AE, Coutinho HDM, Barros LM. Study of the capacity of the essential oil of Lantana montevidensis to modulate the action of fluconazole on Candida albicans and Candida tropicalis strains. J Mycol Med 2021; 31:101171. [PMID: 34224939 DOI: 10.1016/j.mycmed.2021.101171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 05/27/2021] [Accepted: 06/22/2021] [Indexed: 11/29/2022]
Abstract
In recent decades, fungal infections have been increasing, as well as the indiscriminate use of large-scale antifungal. The objective of the present study was to characterize the chemical components of L. montevidensis leaf essential oil (EOLm) and evaluate its antifungal potential and fluconazole modulating activity against Candida strains. The essential oil was obtained by hydrodistillation and its chemical components were determined by Gas Chromatography coupled to Mass Spectrometry. The antifungal activity was determined by the microdilution method to determine the minimum inhibitory concentration. The modulatory activity of fluconazole by the oil (EOLm) was evaluated against the four Candida strains. Our results demonstrated a predominance of β-Caryophyllene (34.96%) and Germacrene D (25.49%), while (E)-Caryophyllene (0.08%) and δ-Cadinene (0.13%) were the minor constituents. For the antifungal activity, it was evidenced that the EOLm did not inhibit the growth of Candida albicans (CA LM 77 and CA INQS 40006) and Candida tropicalis (CT INCQS 40042 and CT LM 23), but, potentiated the effect of fluconazole in particular against C. tropicalis, although the FIC index indicates indifferent modulation for all strains tested. This study strongly suggests that administration of the fluconazole in combination with plant essential oils can provide a new opportunity to improve the outcome of the drug effect.
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Affiliation(s)
| | - Pedro Silvino Pereira
- Microscopy Laboratory, Regional University of Cariri (URCA), Crato, CE, Brazil; Biology and Toxicology Laboratory, Regional University of Cariri (URCA), Crato, CE, Brazil.
| | | | - Maria Audilene de Freitas
- Microbiology and Molecular Biology Laboratory - LMBM, Regional University of Cariri - URCA, Crato, CE, Brazil
| | | | | | | | | | - Antonia Eliene Duarte
- Biology and Toxicology Laboratory, Regional University of Cariri (URCA), Crato, CE, Brazil
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Synergistic Activity of New Diclofenac and Essential Oils Combinations against Different Candida spp. Antibiotics (Basel) 2021; 10:antibiotics10060688. [PMID: 34201271 PMCID: PMC8227113 DOI: 10.3390/antibiotics10060688] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/30/2021] [Accepted: 06/03/2021] [Indexed: 11/17/2022] Open
Abstract
According to recent studies, Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) have shown a good antimicrobial and antifungal activity. Their association with essential oils (EOs) could be useful for the treatment of infections caused by Candida spp. The aim of this studyis to evaluate the synergistic antifungal activity of new combinations between Diclofenac Sodium Salt (DSS), a widely used NSAID, with EOs of Mentha × piperita, Pelargonium graveolens and Melaleuca alternifolia. The in-vitro antifungal activity was determined on different Candida strains. The determination of the chemical composition of EOs was carried out by gaschromatography-massspectrometry (GC-MS). Susceptibility testing of planktonic cells was performed by using the broth microdilution assay and checkerboard methods. Minimum Inhibitory Concentrations (MIC) of DSS was in a range from 1.02 to 2.05 μg/mL reaching a MIC value of 0.05 μg/mL when combined with Pelargonium graveolens (FICI = 0.23–0.35) or Menthapiperita (FICI = 0.22–0.30) EOs. These preliminary results show thatthe combination of the EOs with DSS improves the antifungal activity on all the tested Candida strains.
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Mun H, Townley HE. Nanoencapsulation of Plant Volatile Organic Compounds to Improve Their Biological Activities. PLANTA MEDICA 2021; 87:236-251. [PMID: 33176380 DOI: 10.1055/a-1289-4505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Plant volatile organic compounds (volatiles) are secondary plant metabolites that play crucial roles in the reproduction, defence, and interactions with other vegetation. They have been shown to exhibit a broad range of biological properties and have been investigated for antimicrobial and anticancer activities. In addition, they are thought be more environmentally friendly than many other synthetic chemicals 1. Despite these facts, their applications in the medical, food, and agricultural fields are considerably restricted due to their volatilities, instabilities, and aqueous insolubilities. Nanoparticle encapsulation of plant volatile organic compounds is regarded as one of the best strategies that could lead to the enhancement of the bioavailability and biological activity of the volatile compounds by overcoming their physical limitations and promoting their controlled release and cellular absorption. In this review, we will discuss the biosynthesis and analysis of plant volatile organic compounds, their biological activities, and limitations. Furthermore, different types of nanoparticle platforms used to encapsulate the volatiles and the biological efficacies of nanoencapsulated volatile organic compounds will be covered.
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Affiliation(s)
- Hakmin Mun
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Helen E Townley
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
- Department of Engineering Science, University of Oxford, Oxford, UK
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Tafrihi M, Imran M, Tufail T, Gondal TA, Caruso G, Sharma S, Sharma R, Atanassova M, Atanassov L, Valere Tsouh Fokou P, Pezzani R. The Wonderful Activities of the Genus Mentha: Not Only Antioxidant Properties. Molecules 2021; 26:1118. [PMID: 33672486 PMCID: PMC7923432 DOI: 10.3390/molecules26041118] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/24/2022] Open
Abstract
Medicinal plants and their derived compounds have drawn the attention of researchers due to their considerable impact on human health. Among medicinal plants, mint (Mentha species) exhibits multiple health beneficial properties, such as prevention from cancer development and anti-obesity, antimicrobial, anti-inflammatory, anti-diabetic, and cardioprotective effects, as a result of its antioxidant potential, combined with low toxicity and high efficacy. Mentha species are widely used in savory dishes, food, beverages, and confectionary products. Phytochemicals derived from mint also showed anticancer activity against different types of human cancers such as cervix, lung, breast and many others. Mint essential oils show a great cytotoxicity potential, by modulating MAPK and PI3k/Akt pathways; they also induce apoptosis, suppress invasion and migration potential of cancer cells lines along with cell cycle arrest, upregulation of Bax and p53 genes, modulation of TNF, IL-6, IFN-γ, IL-8, and induction of senescence phenotype. Essential oils from mint have also been found to exert antibacterial activities against Bacillus subtilis, Streptococcus aureus, Pseudomonas aeruginosa, and many others. The current review highlights the antimicrobial role of mint-derived compounds and essential oils with a special emphasis on anticancer activities, clinical data and adverse effects displayed by such versatile plants.
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Affiliation(s)
- Majid Tafrihi
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar 4741695447, Iran;
| | - Muhammad Imran
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore 54600, Pakistan; (M.I.); (T.T.)
| | - Tabussam Tufail
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore 54600, Pakistan; (M.I.); (T.T.)
| | | | - Gianluca Caruso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici (Naples), Italy
| | - Somesh Sharma
- School of Bioengineering & Food Technology, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India; (S.S.); (R.S.)
| | - Ruchi Sharma
- School of Bioengineering & Food Technology, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India; (S.S.); (R.S.)
| | - Maria Atanassova
- Scientific Consulting, Chemical Engineering, University of Chemical Technology and Metallurgy, 1734 Sofia, Bulgaria
| | - Lyubomir Atanassov
- Saint Petersburg University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia;
| | - Patrick Valere Tsouh Fokou
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bamenda BP 39, Cameroon
- Department of Biochemistry, Faculty of Science, University of Yaoundé, NgoaEkelle, Annex Fac. Sci., Yaounde 812, Cameroon
| | - Raffaele Pezzani
- Phytotherapy LAB (PhT-LAB), Endocrinology Unit, Department of Medicine (DIMED), University of Padova, Via Ospedale 105, 35128 Padova, Italy
- AIROB, Associazione Italiana per la Ricerca Oncologica di Base, 35128 Padova, Italy
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Antifungal Properties of Essential Oils and Their Compounds for Application in Skin Fungal Infections: Conventional and Nonconventional Approaches. MOLECULES (BASEL, SWITZERLAND) 2021; 26:molecules26041093. [PMID: 33669627 PMCID: PMC7922942 DOI: 10.3390/molecules26041093] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/29/2021] [Accepted: 01/31/2021] [Indexed: 01/07/2023]
Abstract
Essential oils (EOs) are known to have varying degrees of antimicrobial properties that are mainly due to the presence of bioactive compounds. These include antiviral, nematicidal, antifungal, insecticidal and antioxidant properties. This review highlights the potential of EOs and their compounds for application as antifungal agents for the treatment of skin diseases via conventional and nonconventional approaches. A search was conducted using three databases (Scopus, Web of Science, Google Scholar), and all relevant articles from the period of 2010-2020 that are freely available in English were extracted. In our findings, EOs with a high percentage of monoterpenes showed strong ability as potential antifungal agents. Lavandula sp., Salvia sp., Thymus sp., Citrus sp., and Cymbopogon sp. were among the various species found to show excellent antifungal properties against various skin diseases. Some researchers developed advanced formulations such as gel, semi-solid, and ointment bases to further evaluate the effectiveness of EOs as antifungal agents. To date, most studies on the application of EOs as antifungal agents were performed using in vitro techniques, and only a limited number pursued in vivo and intervention-based research.
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Aljaafari MN, AlAli AO, Baqais L, Alqubaisy M, AlAli M, Molouki A, Ong-Abdullah J, Abushelaibi A, Lai KS, Lim SHE. An Overview of the Potential Therapeutic Applications of Essential Oils. Molecules 2021; 26:628. [PMID: 33530290 PMCID: PMC7866131 DOI: 10.3390/molecules26030628] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 12/27/2022] Open
Abstract
The emergence of antimicrobial resistance (AMR) has urged researchers to explore therapeutic alternatives, one of which includes the use of natural plant products such as essential oils (EO). In fact, EO obtained from clove, oregano, thymus, cinnamon bark, rosemary, eucalyptus, and lavender have been shown to present significant inhibitory effects on bacteria, fungi, and viruses; many studies have been done to measure EO efficacy against microorganisms. The strategy of combinatory effects via conventional and non-conventional methods revealed that the combined effects of EO-EO or EO-antibiotic exhibit enhanced efficacy. This paper aims to review the antimicrobial effects of EO, modes of EO action (membrane disruption, efflux inhibition, increase membrane permeability, and decrease in intracellular ATP), and their compounds' potential as effective agents against bacteria, fungi, and viruses. It is hoped that the integration of EO applications in this work can be used to consider EO for future clinical applications.
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Affiliation(s)
- Mariam Nasser Aljaafari
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
| | - Asma Obaid AlAli
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
| | - Laila Baqais
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
| | - Maream Alqubaisy
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
| | - Mudhi AlAli
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
| | - Aidin Molouki
- Department of Avian Disease Research and Diagnostic, Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj 31585-854, Iran;
| | - Janna Ong-Abdullah
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, 43400 Selangor, Malaysia;
| | | | - Kok-Song Lai
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
| | - Swee-Hua Erin Lim
- Health Sciences Division, Abu Dhabi Women’s College, Higher Colleges of Technology, 41012 Abu Dhabi, UAE; (M.N.A.); (A.O.A.); (L.B.); (M.A.); (M.A.); (K.-S.L.)
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Roana J, Mandras N, Scalas D, Campagna P, Tullio V. Antifungal Activity of Melaleuca alternifolia Essential Oil (TTO) and Its Synergy with Itraconazole or Ketoconazole against Trichophyton rubrum. Molecules 2021; 26:molecules26020461. [PMID: 33477259 PMCID: PMC7830555 DOI: 10.3390/molecules26020461] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 11/16/2022] Open
Abstract
Over the past 20–30 years, Trichophyton rubrum represented the most widespread dermatophyte with a prevalence accounting for 70% of dermatophytosis. The treatment for cutaneous infections caused by Trichophyton spp. are imidazoles (ketoconazole (KTZ)) and triazoles (itraconazole (ITZ)). T. rubrum can develop resistance to azoles after prolonged exposure to subinhibitory concentrations resulting in therapeutic failures and chronic infections. These problems have stimulated the search for therapeutic alternatives, including essential oils, and their potential use in combination with conventional antifungals. The purpose of this study was to evaluate the antifungal activity of tea tree oil (TTO) (Melaleuca alternifolia essential oil) and the main components against T. rubrum and to assess whether TTO in association with KTZ/ITZ as reference drugs improves the antifungal activity of these drugs. We used a terpinen-4-ol chemotype (35.88%) TTO, and its antifungal properties were evaluated by minimum inhibitory and minimum fungicidal concentrations in accordance with the CLSI guidelines. The interaction between TTO and azoles was evaluated through the checkerboard and isobologram methods. The results demonstrated both the fungicide activity of TTO on T. rubrum and the synergism when it was used in combination with azoles. Therefore, this mixture may reduce the minimum effective dose of azole required and minimize the side effects of the therapy. Synergy activity offered a promise for combination topical treatment for superficial mycoses.
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Affiliation(s)
- Janira Roana
- Department of Public Health and Pediatrics, Microbiology Division, University of Turin, via Santena 9, 10126 Turin, Italy; (J.R.); (N.M.)
| | - Narcisa Mandras
- Department of Public Health and Pediatrics, Microbiology Division, University of Turin, via Santena 9, 10126 Turin, Italy; (J.R.); (N.M.)
| | - Daniela Scalas
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095 Turin, Italy;
| | - Paolo Campagna
- Società Italiana per la Ricerca Sugli Oli Essenziali, 00161 Rome, Italy;
| | - Vivian Tullio
- Department of Public Health and Pediatrics, Microbiology Division, University of Turin, via Santena 9, 10126 Turin, Italy; (J.R.); (N.M.)
- Correspondence: ; Tel.: +39-011-670-5637
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Ham RE, Temesvari LA. Joining forces: Leveraging novel combination therapies to combat infections with eukaryotic pathogens. PLoS Pathog 2021; 16:e1009081. [PMID: 33382854 PMCID: PMC7774843 DOI: 10.1371/journal.ppat.1009081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Rachel E. Ham
- Department of Biological Sciences, Clemson University, Clemson, South Carolina, Unites States of America
- Eukaryotic Pathogens Innovation Center (EPIC), Clemson University, Clemson, South Carolina, Unites States of America
| | - Lesly A. Temesvari
- Department of Biological Sciences, Clemson University, Clemson, South Carolina, Unites States of America
- Eukaryotic Pathogens Innovation Center (EPIC), Clemson University, Clemson, South Carolina, Unites States of America
- * E-mail:
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Potente G, Bonvicini F, Gentilomi GA, Antognoni F. Anti- Candida Activity of Essential Oils from Lamiaceae Plants from the Mediterranean Area and the Middle East. Antibiotics (Basel) 2020; 9:antibiotics9070395. [PMID: 32660009 PMCID: PMC7400371 DOI: 10.3390/antibiotics9070395] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/30/2020] [Accepted: 07/07/2020] [Indexed: 11/16/2022] Open
Abstract
Extensive documentation is available on plant essential oils as a potential source of antimicrobials, including natural drugs against Candida spp. Yeasts of the genus Candida are responsible for various clinical manifestations, from mucocutaneous overgrowth to bloodstream infections, whose incidence and mortality rates are increasing because of the expanding population of immunocompromised patients. In the last decade, although C. albicans is still regarded as the most common species, epidemiological data reveal that the global distribution of Candida spp. has changed, and non-albicans species of Candida are being increasingly isolated worldwide. The present study aimed to review the anti-Candida activity of essential oils collected from 100 species of the Lamiaceae family growing in the Mediterranean area and the Middle East. An overview is given on the most promising essential oils and constituents inhibiting Candida spp. growth, with a particular focus for those natural products able to reduce the expression of virulence factors, such as yeast-hyphal transition and biofilm formation. Based on current knowledge on members of the Lamiaceae family, future recommendations to strengthen the value of these essential oils as antimicrobial agents include pathogen selection, with an extension towards the new emerging Candida spp. and toxicological screening, as it cannot be taken for granted that plant-derived products are void of potential toxic and/or carcinogenic properties.
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Affiliation(s)
- Giulia Potente
- Department for Life Quality Studies, University of Bologna, Corso d’Augusto 237, 47921 Rimini, Italy; (G.P.); (F.A.)
| | - Francesca Bonvicini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy;
- Correspondence: ; Tel.: +39-051-4290-930
| | - Giovanna Angela Gentilomi
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy;
| | - Fabiana Antognoni
- Department for Life Quality Studies, University of Bologna, Corso d’Augusto 237, 47921 Rimini, Italy; (G.P.); (F.A.)
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Aneke CI, Rhimi W, Otranto D, Cafarchia C. Comparative evaluation of E-test and CLSI methods for Itraconazole, Fluconazole and Ketoconazole susceptibilities of Microsporum canis strains. Mycopathologia 2020; 185:495-502. [PMID: 32468154 DOI: 10.1007/s11046-020-00453-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/04/2020] [Indexed: 02/03/2023]
Abstract
The incidence of resistance to antifungal agents for dermatophytes is increasing, but most of the methods currently available to test the antifungal susceptibility of Microsporum canis still require standardization. The aims of this study were: (i) to evaluate the antifungal susceptibility of M. canis strains recovered from animals to ketoconazole (KTZ), fluconazole (FLZ) and itraconazole (ITZ) using a modified CLSI broth microdilution (CLSI M38-A2-BMD) and the E-test® protocols and (ii) to estimate the agreement between the methods. Tentative azole epidemiological cutoff values (ECVs) were also proposed in order to interpret the results of in vitro susceptibility tests and to establish the agreement between the E-test and CLSI BMD methods. A total of forty clinical M. canis strains from animals with skin lesions were tested, and the essential (EA) and categorical agreement (CA) between the two methods were determined. KTZ displayed the lowest MIC values, while ITZ and FLZ the highest. The ECV for KTZ and ITZ were 4 μg/ml, while those of FLZ was 64 μg/ml. Based on ECVs, about 88% of M. canis strains were susceptible to all azoles being a cross-resistance with ITZ-FLZ registered for one strain. A total of five M. canis strains showed MIC > ECV for FLZ using CLSI, while one strain showed MIC > ECV for ITZ using both tests. KTZ, ITZ and FLZ showed EA ranging from 92.5 to 95%, for all azoles and CA > 97% except for FLZ (87.5%). The good CA between the E-test and the CLSI BMD provides evidence of the reliability of the former method to test the antifungal susceptibility of M. canis for ITZ and KTZ and not for FLZ.
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Affiliation(s)
- Chioma Inyang Aneke
- Dipartimento Di Medicina Veterinaria, Università Degli Studi "Aldo Moro", 70010, Valenzano (Bari), Italy
- Department of Veterinary Pathology and Microbiology, University of Nigeria, Nsukka, 410001, Nigeria
| | - Wafa Rhimi
- Dipartimento Di Medicina Veterinaria, Università Degli Studi "Aldo Moro", 70010, Valenzano (Bari), Italy
| | - Domenico Otranto
- Dipartimento Di Medicina Veterinaria, Università Degli Studi "Aldo Moro", 70010, Valenzano (Bari), Italy
| | - Claudia Cafarchia
- Dipartimento Di Medicina Veterinaria, Università Degli Studi "Aldo Moro", 70010, Valenzano (Bari), Italy.
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Silva D, Diniz-Neto H, Cordeiro L, Silva-Neta M, Silva S, Andrade-Júnior F, Leite M, Nóbrega J, Morais M, Souza J, Rosa L, Melo T, Souza H, Sousa A, Rodrigues G, Oliveira-Filho A, Lima E. (R)-(+)-β-Citronellol and (S)-(-)-β-Citronellol in Combination with Amphotericin B against Candida Spp. Int J Mol Sci 2020; 21:ijms21051785. [PMID: 32150884 PMCID: PMC7084460 DOI: 10.3390/ijms21051785] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 12/02/2022] Open
Abstract
The enantiomers (R)-(+)-β-citronellol and (S)-(−)-β-citronellol are present in many medicinal plants, but little is understood about their bioactivity against Candida yeasts. This study aimed to evaluate the behavior of positive and negative enantiomers of β-citronellol on strains of Candida albicans and C. tropicalis involved in candidemia. The minimum inhibitory concentration (MIC) and minimum fungicide concentration (MFC) were determined. The evaluation of growth kinetics, mechanism of action, and association studies with Amphotericin B (AB) using the checkerboard method was also performed. R-(+)-β-citronellol and S-(−)-β-citronellol presented a MIC50% of 64 µg/mL and a MFC50% of 256 µg/mL for C. albicans strains. For C. tropicalis, the isomers exhibited a MIC50% of 256 µg/mL and a MFC50% of 1024 µg/mL. In the mechanism of action assay, both substances displayed an effect on the fungal membrane but not on the fungal cell wall. Synergism and indifference were observed in the association of R-(+)-β-citronellol and AB, while the association between S-(−)-β-citronellol and AB displayed synergism, additivity, and indifference. In conclusion, both isomers of β-citronellol presented a similar profile of antifungal activity. Hence, they can be contemplated in the development of new antifungal drugs providing that further research is conducted about their pharmacology and toxicity.
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Affiliation(s)
- Daniele Silva
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
- Correspondence: ; Tel.: +55-83-99981-1977
| | - Hermes Diniz-Neto
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Laísa Cordeiro
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Maria Silva-Neta
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Shellygton Silva
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Francisco Andrade-Júnior
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Maria Leite
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Jefferson Nóbrega
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Maria Morais
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Juliana Souza
- Department of Chemistry, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (J.S.); (H.S.)
| | - Lyvia Rosa
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Thamara Melo
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
| | - Helivaldo Souza
- Department of Chemistry, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (J.S.); (H.S.)
| | - Aleson Sousa
- Postgraduate Program in Drug Development and Technological Innovation, Federal University of Paraíba, João Pessoa 58051-970, Brazil;
| | - Gregório Rodrigues
- Postgraduate Program in Dentistry, Federal University of Paraíba, João Pessoa 58051-970, Brazil;
| | - Abrahão Oliveira-Filho
- Health and Rural Technology Center, Federal University of Campina Grande, Patos 58700-970, Brazil;
| | - Edeltrudes Lima
- Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-970, Brazil; (H.D.-N.); (L.C.); (M.S.-N.); (S.S.); (F.A.-J.); (M.L.); (J.N.); (M.M.); (L.R.); (T.M.); (E.L.)
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Enhanced Killing of Candida krusei by Polymorphonuclear Leucocytes in the Presence of Subinhibitory Concentrations of Melaleuca alternifolia and "Mentha of Pancalieri" Essential Oils. Molecules 2019; 24:molecules24213824. [PMID: 31652809 PMCID: PMC6864523 DOI: 10.3390/molecules24213824] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to evaluate the influence of tea tree oil (TTO) and "Mentha of Pancalieri" essential oil (MPP) on intracellular killing of Candida krusei, often resistant to conventional drugs, by polymorphonuclear leucocytes (PMNs). Intracellular killing was investigated by incubating yeasts and PMNs with essential oils (EOs) at 1/4 and 1/8 × MIC (Minimal Inhibitory Concentration), in comparison with anidulafungin, used as a reference drug. Killing values were expressed as Survival Index (SI) values. The cytotoxicity of EOs was evaluated by 3-[4,-5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Both EOs were more efficaceous at 1/8 × MIC than 1/4 × MIC, with killing values higher than observed in EO-free systems and in presence of anidulafungin, indicating that the decreasing concentrations did not cause lower candidacidal activity. This better activity at 1/8 × MIC is probably due to the EOs' toxicity at 1/4 × MIC, suggesting that at higher concentrations EOs might interfere with PMNs functionality. TTO and MPP at 1/8 × MIC significantly increased intracellular killing by PMNs through their direct action on the yeasts (both EOs) or on phagocytic cells (MPP), suggesting a positive interaction between EOs and PMNs to eradicate intracellular C. krusei. These data showed a promising potential application of TTO and "Mentha of Pancalieri" EO as natural adjuvants in C. krusei infection management.
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