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Pérez-Rodríguez A, Duarte-Escalante E, Frías-De-León MG, Acosta Altamirano G, Meraz-Ríos B, Martínez-Herrera E, Arenas R, Reyes-Montes MDR. Phenotypic and Genotypic Identification of Dermatophytes from Mexico and Central American Countries. J Fungi (Basel) 2023; 9:jof9040462. [PMID: 37108916 PMCID: PMC10143779 DOI: 10.3390/jof9040462] [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: 02/20/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Dermatophytes are fungi included in the genera Trichophyton, Microsporum, Epidermophyton, Nannizzia, Paraphyton, Lophophyton, and Arthroderma. Molecular techniques have contributed to faster and more precise identification, allowing significant advances in phylogenetic studies. This work aimed to identify clinical isolates of dermatophytes through phenotypic (macro- and micromorphology and conidia size) and genotypic methods (sequences of ITS regions, genes of β tubulin (BT2), and elongation factor α (Tef-1α)) and determine the phylogenetic relationships between isolates. Ninety-four dermatophyte isolates from Costa Rica, Guatemala, Honduras, Mexico, and the Dominican Republic were studied. The isolates presented macro- and micromorphology and conidia size described for the genera Trichophyton, Microsporum, and Epidermophyton. Genotypic analysis classified the isolates into the genera Trichophyton (63.8%), Nannizzia (25.5%), Arthroderma (9.6%), and Epidermophyton (1.1%). The most frequent species were T. rubrum (26 isolates, 27.6%), T. interdigitale (26 isolates, 27.6%), and N. incurvata (11 isolates, 11.7%), N. gypsea and A. otae (nine isolates, 9.6%), among others. The genotypic methods clarified the taxonomic status of closely related species. For instance, the ITS and BT2 markers of T. rubrum/T. violaceum did not differ but the Tef-1α gene did. On the other hand, the three markers differed in T. equinum/T. tonsurans. Therefore, the ITS, BT2, and Tef-1α genes are useful for typing in phylogenetic analyses of dermatophytes, with Tef-1α being the most informative locus. It should be noted that isolate MM-474 was identified as T. tonsurans when using ITS and Tef-1α, but when using BT2, it was identified as T. rubrum. On the other hand, no significant difference was found when comparing the methods for constructing phylogenies, as the topologies were similar.
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Affiliation(s)
- Angélica Pérez-Rodríguez
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, Mexico City 04510, Mexico
| | - Esperanza Duarte-Escalante
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, Mexico City 04510, Mexico
| | - María Guadalupe Frías-De-León
- Hospital Regional de Alta Especialidad de Ixtapaluca, Carretera Federal México-Puebla Km. 34.5, Pueblo de Zoquiapan, Ixtapaluca 56530, Mexico
| | - Gustavo Acosta Altamirano
- Hospital Regional de Alta Especialidad de Ixtapaluca, Carretera Federal México-Puebla Km. 34.5, Pueblo de Zoquiapan, Ixtapaluca 56530, Mexico
| | - Beatriz Meraz-Ríos
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, Mexico City 04510, Mexico
- Hospital Regional de Alta Especialidad de Ixtapaluca, Carretera Federal México-Puebla Km. 34.5, Pueblo de Zoquiapan, Ixtapaluca 56530, Mexico
| | - Erick Martínez-Herrera
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Mexico City 11340, Mexico
| | - Roberto Arenas
- Departamento de Dermatología, Sección de Micología, Hospital General Dr. Manuel Gea González, Mexico City 10480, Mexico
| | - María Del Rocío Reyes-Montes
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, Mexico City 04510, Mexico
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2
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Osman M, Kasir D, Rafei R, Kassem II, Ismail MB, El Omari K, Dabboussi F, Cazer C, Papon N, Bouchara JP, Hamze M. Trends in the epidemiology of dermatophytosis in the Middle East and North Africa region. Int J Dermatol 2021; 61:935-968. [PMID: 34766622 DOI: 10.1111/ijd.15967] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/31/2021] [Accepted: 10/15/2021] [Indexed: 12/28/2022]
Abstract
Dermatophytosis corresponds to a broad series of infections, mostly superficial, caused by a group of keratinophilic and keratinolytic filamentous fungi called dermatophytes. These mycoses are currently considered to be a major public health concern worldwide, particularly in developing countries such as those in the Middle East and North Africa (MENA) region. Here we compiled and discussed existing epidemiologic data on these infections in the MENA region. Most of the available studies were based on conventional diagnostic strategies and were published before the last taxonomic revision of dermatophytes. This has led to misidentifications, which might have resulted in the underestimation of the real burden of these infections in the MENA countries. Our analysis of the available literature highlights an urgent need for further studies based on reliable diagnostic tools and standard susceptibility testing methods for dermatophytosis, which represents a major challenge for these countries. This is crucial for guiding appropriate interventions and activating antifungal stewardship programs in the future.
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Affiliation(s)
- Marwan Osman
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon.,Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Dalal Kasir
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon
| | - Rayane Rafei
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon
| | - Issmat I Kassem
- Center for Food Safety and Department of Food Science and Technology, University of Georgia, Griffin, GA, USA
| | - Mohamad Bachar Ismail
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon.,Faculty of Science, Lebanese University, Tripoli, Lebanon
| | - Khaled El Omari
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon.,Quality Control Center Laboratories, Chamber of Commerce, Industry, and Agriculture of Tripoli and North Lebanon, Tripoli, Lebanon
| | - Fouad Dabboussi
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon
| | - Casey Cazer
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Nicolas Papon
- Univ Angers, Univ Brest, GEIHP, SFR ICAT, Angers, France
| | | | - Monzer Hamze
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon
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3
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Khodadadi H, Zomorodian K, Nouraei H, Zareshahrabadi Z, Barzegar S, Zare MR, Pakshir K. Prevalence of superficial-cutaneous fungal infections in Shiraz, Iran: A five-year retrospective study (2015-2019). J Clin Lab Anal 2021; 35:e23850. [PMID: 34028857 PMCID: PMC8274978 DOI: 10.1002/jcla.23850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 12/02/2022] Open
Abstract
Background Superficial and cutaneous fungal infections are common in tropical areas. The aim of this study was to provide a basic database of superficial and cutaneous mycoses and the most common etiological agents among patients. Methods Between 2015 and 2019, a total of 1807 patients suspected of superficial and cutaneous mycosis referring to the mycology laboratory of Shiraz medical school, Fars, Iran were evaluated. Specimens were taken from the patients’ affected area, and clinical samples were examined by direct microscopy and culture. The epidemiological profile of the patients was collected. Results A total of 750 patients were confirmed with mycoses. Positive samples totaled 750 cases consisting of the nail (373/49.7%), skin (323/43%), head (47/6.26%), and mucosal membrane (4/0.5%). The yeasts group included 304 Candida spp. (70.3%), 123 Malassezia spp. (28.47%), and 5 Rhodotorula spp. (1.1%). The filamentous fungi were distributed as 34.8% dermatophytes and 7.5% non‐dermatophyte. The clinical types of dermatophytosis were tinea unguium (110/261), tinea capitis (50/261), tinea pedis (48/261), tinea corporis (37/261), and tinea cruris (16/261). Non‐dermatophyte molds included A. flavus 17, A. niger 4, Aspergillus spp. 15, Penicillium. 10, Fusarium 6, Mucor 2, Stemphylium 1, and Alternaria 1. Conclusion This study provides useful data for the study trends of superficial and cutaneous fungal infections in a specific area. The mycological data confirmed higher incidence of candidiasis (mainly onychomycosis) and dermatophytosis in patients affected by fungal pathogens, which helped to better understand the epidemiological aspects of these mycoses.
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Affiliation(s)
- Hossein Khodadadi
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kamiar Zomorodian
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.,Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hasti Nouraei
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Zareshahrabadi
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sajjad Barzegar
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Mohammad Reza Zare
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Keyvan Pakshir
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.,Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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4
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Rosalie S, Lize C, Laurence S, Rajae D, Caroline A, Katrien L, Marie-Pierre H. Epidemiology of Dermatophytes in Belgium: A 5 Years' Survey. Mycopathologia 2021; 186:399-409. [PMID: 33900539 DOI: 10.1007/s11046-021-00542-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 03/15/2021] [Indexed: 01/01/2023]
Abstract
Dermatophytes are among the most common fungal agents causing superficial skin infections worldwide. Epidemiology of these infections is evolving and variable in every country. This report presents the Belgian epidemiological data regarding the distribution of dermatophytes species isolated by the two national reference centers for mycosis during a period of 5 years (2012-2016). Trichophyton rubrum was the most frequently isolated species, considering all sampling sites (60.3% on average between 2012 and 2016). More precisely, this dermatophyte was the major agent of Tinea unguium and Tinea corporis during this period, followed by species of the Trichophyton mentagrophytes complex. Moreover, Microsporum audouinii was the main etiological agent of Tinea capitis (TC) with a frequency of 52.5% on average between 2012 and 2016. Other African dermatophytes species such as Trichophyton soudanense and Trichophyton violaceum were also agents of TC with a respective prevalence of 11.6% and 11.5% on average. This study highlights a different dermatophyte distribution in Belgium in comparison with other European countries.
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Affiliation(s)
- Sacheli Rosalie
- Department of Clinical Microbiology, Belgian National Reference Center, University Hospital of Liege, Liège, Belgium.
| | - Cuypers Lize
- Laboratory of Clinical Bacteriology and Mycology, Belgian National Reference Center, University Hospital of Leuven, Leuven, Belgium
| | - Seidel Laurence
- Department of Biostatistics, University Hospital of Liege, Liege, Belgium
| | - Darfouf Rajae
- Department of Clinical Microbiology, Belgian National Reference Center, University Hospital of Liege, Liège, Belgium
| | - Adjetey Caroline
- Department of Clinical Microbiology, Belgian National Reference Center, University Hospital of Liege, Liège, Belgium
| | - Lagrou Katrien
- Laboratory of Clinical Bacteriology and Mycology, Belgian National Reference Center, University Hospital of Leuven, Leuven, Belgium
| | - Hayette Marie-Pierre
- Department of Clinical Microbiology, Belgian National Reference Center, University Hospital of Liege, Liège, Belgium
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5
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Sharma B, Nonzom S. Superficial mycoses, a matter of concern: Global and Indian scenario-an updated analysis. Mycoses 2021; 64:890-908. [PMID: 33665915 DOI: 10.1111/myc.13264] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 01/19/2023]
Abstract
Superficial mycoses of skin, nails and hair are among the common fungal infections. They are caused by dermatophytes, non-dermatophyte moulds, yeasts and yeast-like fungi. Such fungal infections are widespread all over the world and are predominant in tropical as well as subtropical regions. Environmental factors, such as warm, humid and pitiable hygienic conditions, are conducive for their growth and proliferation. Although it does not cause mortality, it is known to be associated with excessive morbidity which may be psychological or physical. This affects the quality of life of the infected individuals which leads to a negative impact on their occupational, emotional and social status. Such infections are increasing on a global scale and, therefore, are of serious concern worldwide. This review article covers the global and Indian scenario of superficial mycoses taking into account the historical background, aetiological agents, prevalence, cultural and environmental factors, risk factors, pathogenesis and hygienic practices for the prevention of superficial mycoses.
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Affiliation(s)
- Bharti Sharma
- Department of Botany, University of Jammu, Jammu, Jammu and Kashmir, India
| | - Skarma Nonzom
- Department of Botany, University of Jammu, Jammu, Jammu and Kashmir, India
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6
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Zareshahrabadi Z, Totonchi A, Rezaei-Matehkolaei A, Ilkit M, Ghahartars M, Arastehfar A, Motamedi M, Nouraei H, Sharifi Lari M, Mohammadi T, Zomorodian K. Molecular identification and antifungal susceptibility among clinical isolates of dermatophytes in Shiraz, Iran (2017-2019). Mycoses 2020; 64:385-393. [PMID: 33295089 DOI: 10.1111/myc.13226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/28/2020] [Accepted: 12/02/2020] [Indexed: 12/22/2022]
Abstract
Dermatophytosis is a common superficial mycotic infection affecting individual's quality of life worldwide. The present study aimed to perform species-level identification and evaluate the antifungal susceptibility patterns of dermatophytes isolated in Shiraz, Iran. This cross-sectional study was conducted on clinical samples collected during 2017-2019 from 307 patients suspected of having dermatophytosis. The isolates were identified by direct microscopy, culture and internal transcribed spacer ribosomal DNA sequencing, and their antifungal susceptibility patterns were determined by the microdilution method. Among 307 patients, dermatophytosis was diagnosed by microscopy in 190 (61.8%) subjects and confirmed in 130 (42.3%) cases by both microscopy and culture. It was found out tinea pedis was the most common clinical manifestation, and Trichophyton mentagrophytes was the most prevalent species (28.4%), followed by T tonsurans (23.8%), Microsporum canis (11.5%), T interdigitale (10%), T verrucosum (6.9%), T rubrum (6.9%), T benhamiae (4.6%), T violaceum (3%), T simii (3%), Epidermophyton floccosum (0.7%) and M ferrugineum (0.7%). Moreover, it was revealed that luliconazole with a geometric mean (GM) minimum inhibitory concentration (MIC) of 0.03 μg ml-1 was the most effective agent against all tested isolates. Regardless of species, 30% of isolates responded to high MICs of griseofulvin (MIC90 > 2 μg ml-1 ). The increasing prevalence of nonindigenous species of T simii, T benhamiae and M ferrugineum in Shiraz, Iran, was a notable finding. In addition, infections due to zoophilic species showed an increasing trend. These epidemiological data, along with antifungal susceptibility patterns, may have implications for clinical decision-making and successful treatment.
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Affiliation(s)
- Zahra Zareshahrabadi
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Totonchi
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Rezaei-Matehkolaei
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Macit Ilkit
- Division of Mycology, Department of Microbiology, Faculty of Medicine, University Çukurova, Adana, Turkey
| | - Mehdi Ghahartars
- Department of Dermatology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Arastehfar
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
| | - Marjan Motamedi
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hasti Nouraei
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Milad Sharifi Lari
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tooba Mohammadi
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kamiar Zomorodian
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.,Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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7
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Rodríguez‐Cerdeira C, Martínez‐Herrera E, Szepietowski J, Pinto‐Almazán R, Frías‐De‐León M, Espinosa‐Hernández V, Chávez‐Gutiérrez E, García‐Salazar E, Vega‐Sánchez D, Arenas R, Hay R, Saunte D. A systematic review of worldwide data on tinea capitis: analysis of the last 20 years. J Eur Acad Dermatol Venereol 2020; 35:844-883. [DOI: 10.1111/jdv.16951] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 09/03/2020] [Indexed: 12/18/2022]
Affiliation(s)
- C. Rodríguez‐Cerdeira
- Efficiency, Quality, and Costs in Health Services Research Group (EFISALUD) Health Research InstituteSERGAS‐UVIGO Vigo Spain
- Dermatology Department Hospital do Meixoeiro and University of Vigo Vigo Spain
- Psichodermatology Task for (CILAD) Buenos Aires Argentina
| | - E. Martínez‐Herrera
- Efficiency, Quality, and Costs in Health Services Research Group (EFISALUD) Health Research InstituteSERGAS‐UVIGO Vigo Spain
- Psichodermatology Task for (CILAD) Buenos Aires Argentina
- Unidad de Investigación Hospital Regional de Alta Especialidad de Ixtapaluca Ixtapaluca México
| | - J.C. Szepietowski
- Department of Dermatology, Venereology and Allergology Wroclaw Medical University Wroclaw Poland
| | - R. Pinto‐Almazán
- Unidad de Investigación Hospital Regional de Alta Especialidad de Ixtapaluca Ixtapaluca México
| | - M.G. Frías‐De‐León
- Unidad de Investigación Hospital Regional de Alta Especialidad de Ixtapaluca Ixtapaluca México
| | - V.M. Espinosa‐Hernández
- Unidad de Investigación Hospital Regional de Alta Especialidad de Ixtapaluca Ixtapaluca México
| | - E. Chávez‐Gutiérrez
- Unidad de Investigación Hospital Regional de Alta Especialidad de Ixtapaluca Ixtapaluca México
| | - E. García‐Salazar
- Psichodermatology Task for (CILAD) Buenos Aires Argentina
- Unidad de Investigación Hospital Regional de Alta Especialidad de Ixtapaluca Ixtapaluca México
| | - D.C. Vega‐Sánchez
- Psichodermatology Task for (CILAD) Buenos Aires Argentina
- Sección de Micología Hospital General ‘Dr. Manuel Gea González’ Ciudad de México México
| | - R. Arenas
- Efficiency, Quality, and Costs in Health Services Research Group (EFISALUD) Health Research InstituteSERGAS‐UVIGO Vigo Spain
- Psichodermatology Task for (CILAD) Buenos Aires Argentina
- Sección de Micología Hospital General ‘Dr. Manuel Gea González’ Ciudad de México México
| | - R. Hay
- St Johns Institute of Dermatology King's College London London UK
| | - D.M. Saunte
- Department of Dermatology Zealand University Hospital Roskilde Denmark
- Health Sciences Faculty University of Copenhagen Copenhagen Denmark
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8
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Ansari S, Ahmadi B, Norouzi M, Ansari Z, Afsarian MH, Lotfali E, Rezaei-Matehkolaei A. Epidermophyton floccosum: nucleotide sequence analysis and antifungal susceptibility testing of 40 clinical isolates. J Med Microbiol 2019; 68:1655-1663. [PMID: 31573466 DOI: 10.1099/jmm.0.001074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose. Epidermophyton floccosum is an anthropophilic dermatophyte species, which is one of the common causative agents of dermatophytosis in different parts of the world. The aim of the present investigation was to evaluate the genetic diversity of E. floccosum strains isolated from different parts of Iran and to define the in vitro susceptibility profiles of seven antifungal drugs against these clinical isolates.Methodology. Forty clinical strains of E. floccosum isolated from 40 patients with dermatophytosis were subjected to DNA extraction and PCR amplification of the ITS rDNA region using universal primers ITS1 and ITS4. The in vitro activities of griseofulvin, itraconazole, voriconazole, posaconazole, caspofungin, ketoconazole and terbinafine were determined using a broth microdilution method according to the CLSI-M-38A2 protocol.Results. A mean genetic similarity of 99.5 % was found between E. floccosum strains, with intraspecies differences ranging from 0 to 3 nt. The geometric mean (GM) MICs and minimum effective concentrations (MECs) across all isolates were, in increasing order, as follows: terbinafine (GM=0.018 mg l-1), posaconazole (GM=0.022 mg l-1), itraconazole (GM=0.034 mg l-1) and voriconazole (GM=0.045 mg l-1), which had low MICs against all tested strains, whereas caspofungin (GM=0.22 mg l-1), ketoconazole (GM=0.41 mg l-1) and griseofulvin (GM=0.62 mg l-1) demonstrated higher MICs.Conclusion. Our study showed low intraspecies variation within strains of E. floccosum. Furthermore, terbinafine, posaconazole, itraconazole and voriconazole were shown to be the most potent antifungal drugs against E. floccosum strains.
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Affiliation(s)
- Saham Ansari
- Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Ahmadi
- Department of Medical Laboratory Sciences, School of Para-Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Maryam Norouzi
- Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zohreh Ansari
- Department of Chemistry, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Mohammad Hosein Afsarian
- Department of Medical Mycology and Parasitology, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Ensieh Lotfali
- Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Rezaei-Matehkolaei
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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9
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Farokhipor S, Ghiasian SA, Nazeri H, Kord M, Didehdar M. Characterizing the clinical isolates of dermatophytes in Hamadan city, Central west of Iran, using PCR-RLFP method. J Mycol Med 2018; 28:101-105. [PMID: 29439839 DOI: 10.1016/j.mycmed.2017.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Dermatophytosis is one of the most common mycotic infections, which considered as a public health problem in the major of countries. This study evaluated the molecular epidemiology of dermatophytosis in patients referred to Farshchian hospital in Hamadan city with PCR-RFLP method. MATERIALS AND METHODS Four hundred and five specimens from clinically suspected patients of dermatophytosis were collected and analyzed by direct microscopic and culture. The isolates were identified by PCR-RFLP method using the MvaI restriction enzyme. RESULTS Of the 405 specimens, 88 specimens were positive in direct examination and culture. Among the patients, 64.8% were males and35.2% females. Tinea pedis (31.8%) was the most common type of dermatophytosis followed by tinea corporis (22.7%), tinea cruris (20.5%), tinea capitis (10.2%), tinea manuum (5.7%), tinea faciei (4.6%) and tinea unguium (4.6%). Trichophyton interdigitale (36.4%) was the most common isolate followed by Trichophyton rubrum (27.3%), Epidermophyton floccosum (17%), Trichophyton tonsurans (11.4%), Microsporum canis (4.5%), Microsporum gypseum (2.3%) and Trichophyton benhamiae (1.1%). CONCLUSION Our finding showed that the anthropophilic dermatophyte species causing dermatophytosis are increasing, and molecular methods are reliable assays for accurse identification of dermatophyte species in epidemiological studies.
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Affiliation(s)
- S Farokhipor
- Department of Microbiology, Islamic Azad University, Arak Branch, Arak, Iran
| | - S A Ghiasian
- Medical Parasitology and Mycology Department, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran; Psoriasis Research Center, Department of Dermatology, Farshchian Hospital, Hamadan University of Medical Sciences, Hamadan, Iran
| | - H Nazeri
- Mycology Laboratory, Farshchian Hospital, Hamadan University of Medical Sciences, Hamadan, Iran
| | - M Kord
- Department of Medical Parasitology and Mycology, Tehran University of Medical Sciences, Tehran, Iran
| | - M Didehdar
- Infectious Diseases Research Center (IDRC), Department of Medical Parasitology and Mycology, Arak University of Medical Sciences, Arak, Iran.
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10
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Abstract
Dermatophytoses are among the most frequently diagnosed skin infections worldwide. However, the distribution of pathogenic species and the predominating anatomical sites of infection vary with geographical location and change over time. The aim of this study was to determine the epidemiological and aetiological factors of dermatophytoses in Crete, Greece over the last 5-year period (2011-2015) and their incidence in relation to the gender and the age of the patients. We compared our findings with those previously reported from the same area and from other parts of the world. A total of 2,910 clinical specimens (skin scrapings, nail clippings, and hair specimens) obtained from 2,751 patients with signs of dermatomycoses were examined using direct microscopy and culture. Overall, 294 specimens (10.1%) were proved mycologically positive for dermatophytes. The age of the patients ranged from 2 to 86 years (mean age, 37 years). Tinea corporis was the predominant clinical type of infection, followed by tinea unguium, tinea pedis, tinea capitis, tinea faciei, tinea cruris and tinea manuum. Among dermatophytes, eight species were isolated: Microsporum canis (35.8%), Trichophyton rubrum (35.1%), Trichophyton mentagrophytes (23.3%), Epidermophyton floccosum (2.5%), Microsporum gypseum (1.8%), Trichophyton violaceum (0.7%), Trichophyton verrucosum (0.4%), and Trichophyton tonsurans (0.4%). In our area, the most common dermatophyte was M. canis followed by T. rubrum. Increased migration, mass tourism, and climate changes will contribute to further changes in the epidemiology of dermatophytoses in our area. Continuing studies are necessary for determining the new epidemiological trends and to implement the appropriate control measures.
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Affiliation(s)
- Sofia Maraki
- Department of Clinical Bacteriology, Parasitology, Zoonoses and Geographical Medicine
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11
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Fallahi AA, Rezaei-Matehkolaei A, Rezaei S. Epidemiological status of dermatophytosis in Guilan, north of Iran. Curr Med Mycol 2017. [PMID: 29302626 PMCID: PMC5747585 DOI: 10.29252/cmm.3.1.20] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background and Purpose: The epidemiological features of dermatophytoses have been characterized in many geographical locations of Iran, but not in Guilan, North of Iran. This study was carried out to determine the distribution pattern of dermatophytoses and their relevant agents in Guilan, North of Iran, over a period of one year, from April 2010 to April 2011. Materials and Methods: The clinical samples of skin, hair, and nail from 889 outpatients (317 men vs. 572 women) were used for direct microscopy and culture. All the culture-positive samples were then subjected to amplification of the internal transcribed spacer (ITS) of the nuclear rDNA followed by a restriction fragment length polymorphism (RFLP) assay to verify the causative agents. Results: The infection was confirmed in 90 (44.3%) males and 113 (55.7%) females. The most common type of dermatophytoses was tinea cruris (42.9%), followed by tinea pedis (20.2%), tinea corporis (11.3%), tinea unguium (7.4%), tinea faciei (6.9%), tinea manuum (6.4%), and tinea capitis (4.9%). ITS-RFLP based of the identification of isolates, showed that the infections were significantly associated with anthropophilic species, of Trichophyton rubrum (41.9%), Epidermophyton floccosum (19.7%), T. tonsurans (5.4%), and T.violaceum (2%). Other causative agents were T. interdigitale (22.6%), Microsporum canis (4.9%), T. verrucosum (2.5%), and M. gypseum (1%). Conclusion: The higher prevalence of T. rubrum, as the agent of dermatophytoses, than other species has never been reported from Iran and is of public health concern because of the chronic nature of infections with anthropophilic species. To thoroughly investigate the epidemiological trend of dermatophytoses in Iran, further periodical and molecular-based studies are necessary.
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Affiliation(s)
- A A Fallahi
- Department of Microbiology and Parasitology and Immunology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - A Rezaei-Matehkolaei
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - S Rezaei
- Division of Molecular Biology, Department of Medical Mycology and Parasitology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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12
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Didehdar M, Shokohi T, Khansarinejad B, Ali Asghar Sefidgar S, Abastabar M, Haghani I, Amirrajab N, Mondanizadeh M. Characterization of clinically important dermatophytes in North of Iran using PCR-RFLP on ITS region. J Mycol Med 2016; 26:345-350. [DOI: 10.1016/j.mycmed.2016.06.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 06/07/2016] [Accepted: 06/22/2016] [Indexed: 11/28/2022]
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13
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Zamani S, Sadeghi G, Yazdinia F, Moosa H, Pazooki A, Ghafarinia Z, Abbasi M, Shams-Ghahfarokhi M, Razzaghi-Abyaneh M. Epidemiological trends of dermatophytosis in Tehran, Iran: A five-year retrospective study. J Mycol Med 2016; 26:351-358. [PMID: 27520535 DOI: 10.1016/j.mycmed.2016.06.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 06/07/2016] [Accepted: 06/21/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Dermatophytosis is the most frequent fungal infection all over the world and its frequency is constantly increasing. The aim of this study was to evaluate clinical features and epidemiological trends of dermatophytosis over the years 2010 to 2014 in Tehran, Iran. PATIENTS AND METHODS A total of 13,312 patients clinically suspected of cutaneous fungal infections were examined. Skin scales, plucked hairs, nail clippings and sub-ungual debris were examined by direct microscopy and culture. Dermatophyte species were identified at the species level by a combination of morphological and physiological criteria. RESULTS Direct microscopy confirmed a contamination rate of 19.7% (2622/13,312 cases) of which 1535 cases (58.5%) were culture positive distributed in male (1022 cases) and female (513 cases). The most commonly infected age group was the 30-39 years old. Tinea pedis (30.4%) was the most prevalent type of dermatophytosis followed by tinea cruris (29.8%) and tinea corporis (15.8%). Epidermophyton floccosum (31%) was the most prevalent causative agent, followed by Trichophyton rubrum (26.2%) and Trichophyton mentagrophytes (20.3%). CONCLUSION Our results showed considerable distribution of dermatophytosis from zoophilic, anthropophilic and geophilic species among population with diverse age groups. Although anthropophilic fungi such as T. mentagrophytes, E. floccosum, and T. rubrum were the main etiologic agents of dermatophytosis, the prevalence of T. verrucosum showed a meaningful increase over the years, which highlights the importance of rural dermatophytosis mainly transmitted from large animals. This noticeable information improves our current knowledge about dermatophytosis and assists to establish effective prevention and therapeutic strategies to overcome the disease.
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Affiliation(s)
- S Zamani
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - G Sadeghi
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - F Yazdinia
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - H Moosa
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - A Pazooki
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - Z Ghafarinia
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - M Abbasi
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran
| | - M Shams-Ghahfarokhi
- Department of Medical Mycology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran 14115-331, Iran
| | - M Razzaghi-Abyaneh
- Department of Medical Mycology, Pasteur Institute of Iran, Tehran 13164, Iran.
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14
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Didehdar M, Khansarinejad B, Amirrajab N, Shokohi T. Development of a high-resolution melting analysis assay for rapid and high-throughput identification of clinically important dermatophyte species. Mycoses 2016; 59:442-9. [PMID: 26991756 DOI: 10.1111/myc.12492] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/12/2016] [Accepted: 02/02/2016] [Indexed: 11/27/2022]
Abstract
Accurate identification of dermatophyte species is important both for epidemiological studies and for implementing antifungal treatment strategies. Although nucleic acid amplification-based assays have several advantages over conventional mycological methods, a major disadvantage is their high cost. The aim of this study was to develop a rapid and accurate real-time PCR-based high-resolution melting (HRM) assay for differentiation of the most common dermatophyte species. The oligonucleotide primers were designed to amplify highly conserved regions of the dermatophyte ribosomal DNA. Analysis of a panel containing potentially interfering fungi demonstrated no cross reactivity with the assay. To evaluate the performance characteristics of the method, a total of 250 clinical isolates were tested in comparison with the long-established PCR-RFLP method and the results were reassessed using DNA sequencing, as the reference standard method. The assay is able to type dermatophytes using normalised melting peak, difference plot analysis or electrophoresis on agarose gel methods. The results showed that, in comparison to PCR-RFLP, the developed HRM assay was able to differentiate at least 10 common dermatophytes species with a higher speed, throughput and accuracy. These results indicate that the HRM assay will be a useful sensitive, high throughput and cost-effective method for differentiating the most common dermatophyte species.
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Affiliation(s)
- M Didehdar
- Department of Medical Mycology and Parasitology/Invasive Fungi Research Center (IFRC), Mazandaran University of Medical Sciences, Sari, Iran.,Department of Medical Mycology and Parasitology, Arak University of Medical Sciences, Arak, Iran
| | - B Khansarinejad
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - N Amirrajab
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Laboratory Sciences and Tropical Medicine Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - T Shokohi
- Department of Medical Mycology and Parasitology/Invasive Fungi Research Center (IFRC), Mazandaran University of Medical Sciences, Sari, Iran
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15
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Rezaei-Matehkolaei A, Rafiei A, Makimura K, Gräser Y, Gharghani M, Sadeghi-Nejad B. Epidemiological Aspects of Dermatophytosis in Khuzestan, southwestern Iran, an Update. Mycopathologia 2016; 181:547-53. [PMID: 26886443 DOI: 10.1007/s11046-016-9990-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 02/01/2016] [Indexed: 11/30/2022]
Abstract
Dermatophytosis is among the most common superficial mycoses in Iran. The purpose of this report was to update the clinical and mycological features of human dermatophytosis in the Khuzestan, southwestern Iran. In the framework of a one-year survey, a total of 4120 skin, hair and nail samples obtained from the outpatients with symptoms suggestive of tinea were analyzed by using direct microscopy, culture and molecular identification methods. Strains isolated from cultures were subjected to amplification of the nuclear rDNA ITS regions in a PCR assay followed by an early established RFLP analysis. For confirmation of species identification, 100 isolates as representatives of all presumable species were subjected to ITS sequencing. Infection was confirmed in 1123 individuals (27.25 %) in the age range of 1-89 years by direct microscopy and/or culture including 603 males versus 520 females. Frequencies of infections were the highest and the lowest in age groups of 21-30 and 11-20 years, respectively. Tinea corporis was the most prevalent clinical manifestation followed by tinea cruris, tinea capitis, tinea manuum, tinea pedis, tinea unguium, tinea faciei and tinea barbae. Trichophyton interdigitale (58.7 %) was the most dominant isolate followed by Epidermophyton floccosum (35.4 %), Microsporum canis (3 %), T. rubrum (1.5 %), T. species of Arthroderma benhamiae (0.5 %), T. tonsurans (0.3 %) and T. violaceum (0.3 %). Other species included M. gypseum, M. fulvum and T. verrucosum (each one 0.1 %). Such a high occurrence of infection with T. interdigitale, which has not been reported from Iran, is due to the use of accurate molecular methods based on new species concept in dermatophytes. The prevalence of dermatophytoses caused by zoophilic species remarkably increased and Trichophyton species of A. benhamiae has emerged as a new agent of dermatophytosis in southwestern Iran, while infections due to anthropophilic species, except E. floccosum, took a decreasing trend.
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Affiliation(s)
- Ali Rezaei-Matehkolaei
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. .,Department of Medical Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Abdollah Rafiei
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Medical Parasitology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Koichi Makimura
- Laboratory of Space and Environmental Medicine, Graduate School of Medicine, Teikyo University, Tokyo, Japan
| | - Yvonne Gräser
- Consiliary Laboratory for Dermatophytes, Institute of Microbiology, Charité-Universitätsmedizin Berlin, Dorotheenstrasse 96, Berlin, Germany
| | - Maral Gharghani
- Department of Medical Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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16
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Sadeghi Tafti H, Falahati M, Kordbacheh P, Mahmoudi M, Safara M, Rashidian S, Mahmoudi S, Zaini F. A survey of the etiological agents of scalp and nail dermatophytosis in Yazd, Iran in 2014-2015. Curr Med Mycol 2015; 1:1-6. [PMID: 28680997 PMCID: PMC5490274 DOI: 10.18869/acadpub.cmm.1.4.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background and Purpose: Tinea capitis and tinea unguium are regarded as global public health concerns. The purpose of the present study was to identify the etiological agents of tinea capitis and tinea unguium in patients, referring to the Central Laboratory of Yazd University of Medical Sciences, Yazd, Iran. Materials and Methods: This study was conducted during 2014-2015. Skin scraping, scalp hair, and nail clipping specimens were collected from 134 patients (80 males and 54 females) with clinical features suggesting fungal involvement. Direct microscopic examinations were carried out, using potassium hydroxide 10%, while culture studies were performed on Sabouraud dextrose agar, containing chloramphenicol and cycloheximide at 28°C for four weeks. Fungal colonies were identified based on their macroscopic and microscopic characteristics, as well as supplementary diagnostic tests. Results: Among 134 patients, 12 cases showed positive results on direct examination and culture studies. The frequency of infections was equal among male and female subjects. Among 12 affected cases, the frequency of tinea capitis and tinea unguium was 91.6% and 8.4%, respectively. Microsporum canis (50%) was the most prevalent species, followed by Trichophyton verrucosum (25%) and Trichophyton mentagrophytes (25%). Also, tinea unguium, caused by T. mentagrophytes, was found in a female patient. Conclusion: The etiological agents of scalp and nail dermatophytosis have changed in Yazd over the past 13 years. In the present study, replacement of anthropophilic dermatophytes by zoophilic species was noteworthy, highlighting the necessity of efficient surveillance for the management and prevention of infections.
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Affiliation(s)
- H Sadeghi Tafti
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Falahati
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - P Kordbacheh
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Mahmoudi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Safara
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - S Rashidian
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - S Mahmoudi
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - F Zaini
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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17
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Rashidian S, Falahati M, Kordbacheh P, Mahmoudi M, Safara M, Sadeghi Tafti H, Mahmoudi S, Zaini F. A study on etiologic agents and clinical manifestations of dermatophytosis in Yazd, Iran. Curr Med Mycol 2015; 1:20-25. [PMID: 28681000 PMCID: PMC5490277 DOI: 10.18869/acadpub.cmm.1.4.20] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/05/2015] [Accepted: 12/07/2015] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE Dermatophytosis is one of the most common infections of skin, hair, and nails, caused by a group of keratinophilic fungi known as dermatophytes. Species identification of these fungi is of great significance from epidemiological and therapeutic points of view. The objective of the present study was to investigate dermatophytosis and its causative agents in patients, referring to the Central Mycology Laboratory of Yazd University of Medical Sciences, Yazd, Iran. MATERIALS AND METHODS In total, 139 clinically suspected cases of dermatophytosis were examined during 12 months from February 2014 to February 2015. Skin scrapings were assessed through direct microscopic examinations and culture studies. Dermatophyte isolates were identified based on colony morphology on potato dextrose agar and dermatophyte test medium, nutritional requirements, urease and hair perforation tests, and microscopic characteristics on slide cultures. RESULTS Dermatophytosis was mycologically confirmed in 26 (18.70%) out of 139 cases. Although there was a statistically insignificant difference between male and female subjects, men were dominantly affected. Infection was significantly common in the age group of ≤ 29 years (P<0.043). The most common clinical manifestation of dermatophytosis was tinea corporis (69.2%), followed by tinea cruris (15.4%), tinea manuum (11.5%), and tinea pedis (3.8%). Trichophyton mentagrophytes complex was the main etiologic agent (38.5%), followed by T. rubrum (23%), T. violaceum (15.5%), T. verrucosum (11.5%), Microsporum canis (7.7%), and Epidermophyton floccosum (3.8%). CONCLUSION In comparison with previous research, epidemiology of dermatophytosis has changed in Yazd over the past decades. Therefore, periodical investigations on the epidemiological aspects of this infection are required for efficient control and prevention of this cutaneous dermatophytic disease.
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Affiliation(s)
- S Rashidian
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Falahati
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - P Kordbacheh
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Mahmoudi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Safara
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - H Sadeghi Tafti
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - S Mahmoudi
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - F Zaini
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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18
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Lakshmanan A, Ganeshkumar P, Mohan SR, Hemamalini M, Madhavan R. Epidemiological and clinical pattern of dermatomycoses in rural India. Indian J Med Microbiol 2015; 33 Suppl:134-6. [PMID: 25657132 DOI: 10.4103/0255-0857.150922] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Superficial fungal infections are most common in tropical and subtropical countries. In this study, 297 suspected superficial fungal infection cases were identified among 15,950 patients screened. The collected samples (skin, nail, and hair) were subjected to direct microscopy with potassium hydroxide and cultured on Sabourauds dextrose agar to identify the fungal species. The prevalence of superficial fungal infection was 27.6% (82/297), dermatophytosis was 75.6% (62/82), and non-dermatophytosis was 24.4% (20/82). Among the isolated dermatophytes, Trichophyton rubrum was the commonest species (79%) and Candida (60%) the commonest non-dermatophytic species. Tinea corporis was the commonest (78%) clinical presentation.
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Affiliation(s)
| | - P Ganeshkumar
- Department of Community Medicine, Employee State Insurance Corporation Medical College and Post-graduate Institute of Medical Science and Research, Chennai, India
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19
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Ansari S, Hedayati MT, Zomorodian K, Pakshir K, Badali H, Rafiei A, Ravandeh M, Seyedmousavi S. Molecular Characterization and In Vitro Antifungal Susceptibility of 316 Clinical Isolates of Dermatophytes in Iran. Mycopathologia 2015; 181:89-95. [PMID: 26369643 DOI: 10.1007/s11046-015-9941-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 09/05/2015] [Indexed: 11/29/2022]
Abstract
Dermatophytosis is a common mycotic infection of the skin, nail, and hair, associated with major public health concern worldwide. Various species of dermatophytes show significant differences in susceptibility to antifungals. Here, we present the antifungal susceptibility of a large collection of molecularly identified dermatophyte isolates obtained from tropical region of south of Iran. A total of 9485 patients clinically suspected to have cutaneous fungal infections were examined. Dermatophytosis was confirmed in 1502 cases by direct microscopy and culture. Three hundred and sixteen isolates recovered in culture were identified to species level using PCR sequencing of ITS region and RFLP. Tinea corporis was the most prevalent type of clinical manifestation (35.2 %), followed by tinea cruris (17 %), tinea capitis (12.8 %), tinea pedis (11.3 %), tinea manuum (11 %), tinea unguium (6.9 %), and tinea barbae (5.8 %). Trichophyton interdigitale was the most common isolate (49.36 %), followed by Trichophyton rubrum (18.98 %), Epidermophyton floccosum (13.29 %), Microsporum canis (9.17 %), Arthroderma benhamiae (T. anamorph of A. benhamiae; 5.38 %), and Trichophyton tonsurans (3.79 %). Overall, irrespective of the geographical region, terbinafine was the most potent antifungal against all isolates, with an MIC range of 0.002-0.25 μg/mL, followed by itraconazole (0.004-0.5 μg/mL), griseofulvin (0.125-8 μg/mL), and fluconazole (4-128 μg/mL). Analysis of our data revealed a significant increase in the frequency of A.benhamiae, which definitely warrants further investigation to explore source of this infection in south of Iran. Moreover, terbinafine was the most effective antifungal against all isolates, in vitro.
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Affiliation(s)
- Saham Ansari
- Invasive Fungi Research Center, Mazandaran University of Medical Sciences, Km 18 Khazarabad Road, P.O. Box 48175-1665, Sari, Iran.,Department of Medical Mycology and Parasitology School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad T Hedayati
- Invasive Fungi Research Center, Mazandaran University of Medical Sciences, Km 18 Khazarabad Road, P.O. Box 48175-1665, Sari, Iran. .,Department of Medical Mycology and Parasitology School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Kamiar Zomorodian
- Department of Parasitology and Mycology, Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Keyvan Pakshir
- Department of Parasitology and Mycology, Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamid Badali
- Invasive Fungi Research Center, Mazandaran University of Medical Sciences, Km 18 Khazarabad Road, P.O. Box 48175-1665, Sari, Iran.,Department of Medical Mycology and Parasitology School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abdollah Rafiei
- Department of Parasitology and Mycology/Infectious and Tropical Medicine Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mostafa Ravandeh
- Department of Parasitology and Mycology, Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyedmojtaba Seyedmousavi
- Invasive Fungi Research Center, Mazandaran University of Medical Sciences, Km 18 Khazarabad Road, P.O. Box 48175-1665, Sari, Iran.,Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Erasmus, The Netherlands.,Department of Medical Microbiology, Radboud University Medical Centre, Nijmegen, The Netherlands
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20
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Chadeganipour M, Mohammadi R, Shadzi S. A 10-Year Study of Dermatophytoses in Isfahan, Iran. J Clin Lab Anal 2015; 30:103-7. [PMID: 25902908 DOI: 10.1002/jcla.21852] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 03/09/2015] [Indexed: 11/07/2022] Open
Abstract
Dermatophyte infections are very common worldwide and their epidemiological characteristics vary according to the geographical region and have altered in the last decades. The aim of the present investigation was to determine the diversity of causative agents of dermatophytoses and describe the epidemiological condition of infection in Isfahan, Iran, between 2003 and 2012. Specimens were collected from hair, nail, and skin and were examined by conventional methods such as direct microscopy, culture on sabouraud dextrose agar with chloramphenicol and cycloheximide (Mycosel agar) and sabouraud glucose agar, Trichophyton agars, growth on rice grains, urease test, and hair perforation test. Of 13,469 clinically suspected cases, 11.5% were affected with dermatophytoses. Tinea capitis was the most frequent form of infection (52.7%), followed by tinea corporis (24%), tinea pedis (8.9%). Trichophyton verrucosum was the most prevalent causative agent (40.6%), followed by T. mentagrophytes var. interdigitale (17.6%), Epidermophyton floccosum (13%), T. violaceum (12%), T. rubrum (4.1%). Age range of patients was between 1 and 80 years. Housewives were the most patients in our study. The study emphasizes importance of epidemiological surveys of dermatophyte species for the better management of infection.
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Affiliation(s)
- Mostafa Chadeganipour
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rasoul Mohammadi
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahla Shadzi
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Ahmadi B, Mirhendi H, Shidfar MR, Nouripour-Sisakht S, Jalalizand N, Geramishoar M, Shokoohi GR. A comparative study on morphological versus molecular identification of dermatophyte isolates. J Mycol Med 2014; 25:29-35. [PMID: 25533610 DOI: 10.1016/j.mycmed.2014.10.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 10/04/2014] [Accepted: 10/30/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Dermatophytes are taxonomically classified in the genera Trichophyton, Microsporum, and Epidermophyton. Pleomorphism, cultural variability, slow growth and sporulation, and the need for additional physiological tests make dermatophytes notoriously difficult to identify. The present study aimed to compare the results of morphological and molecular identification of certain groups of clinical isolates of dermatophytes with a view to evaluating the accuracy of molecular methods. PATIENTS AND METHODS For each sample, the ITS1-5.8S-ITS2 rDNA region was amplified using the primers ITS1 and ITS4. PCR products were subjected to restriction fragment length polymorphism (RFLP) analysis using the enzyme MvaI and isolate identification was performed by comparing the electrophoretic RFLP patterns with reference profiles obtained previously. Finally, paired comparative analyses of molecular and conventional methods were performed. RESULTS While morphology results from routine daily reports of the laboratories indicated that 18 (6.8%) and 136 (52.10%) of the isolates were T. rubrum and T. interdigitale, respectively, PCR-RFLP results suggested that T. rubrum was the most common etiological agent of ringworm accounting for 94 (36.01%), followed by T. interdigitale accounting for 71 (27.20%). Interestingly, 80.8% out of the 94 isolates identified as T. rubrum by molecular testing had been identified by morphological examination as belonging to different species, such as T. interdigitale (75.5%), E. floccosum (2.1%) and M. canis, T. verrucosum, and T. tonsurans (each 1.06%). Ten strains out of 261 (T. interdigitale, n=8; E. floccosum, n=2) had been defined as unknown species by morphological tests. CONCLUSION An unexpected high percent of isolates identified as T. interdigitale by conventional methods were in effect T. rubrum shown by PCR-RFLP, and regarding the necessity of correct identification of dermatophytes recovered from different clinical forms of the infection, we highly recommend ITS-sequencing or ITS-RFLP of the isolates, particularly for epidemiological research studies.
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Affiliation(s)
- B Ahmadi
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
| | - H Mirhendi
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran.
| | - M R Shidfar
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
| | - S Nouripour-Sisakht
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - N Jalalizand
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
| | - M Geramishoar
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
| | - G R Shokoohi
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
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22
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Abastabar M, Mirhendi H, Rezaei-Matehkolaei A, Shidfar MR, Kordbacheh P, Makimura K. Restriction analysis of β-tubulin gene for differentiation of the common pathogenic dermatophytes. J Clin Lab Anal 2014; 28:91-6. [PMID: 24395510 DOI: 10.1002/jcla.21649] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Accepted: 06/03/2013] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Identification of dermatophytes at the species level, relying on macro- and microscopic properties of the colonies is time-consuming, questioned in many circumstances, and requires considerable expertise. In this study, we examined the potency of a new genetic marker, β-tubulin (BT2) gene, for differentiation of dermatophytes in an in silico and experimental restriction fragment length polymorphism (RFLP) profile. METHODS The BT2 sequences of dermatophyte species were retrieved from GenBank and analyzed using bioinformatics softwares to choose suitable restriction enzyme(s). Forty reference culture collections and 100 clinical isolates were PCR-amplified using the primers T1 and Bt2b and consequently subjected to virtual RFLP analysis. The dermatophytes were identified according to specific lengths of bands in agarose gel electrophoresis. RESULTS After digestion of partially amplified β-tubulin gene with the restriction enzyme FatI, three dermatophyte species, that is, Microsporum gypseum, M. canis, and Trichophyton verrucosum yielded unique restriction maps while the remaining species including T. interdigitale, T. rubrum, T. tonsurans, T. schoenleinii, and T. violaceum, were identified by further restriction digestion by Alw21I, MwoI, and HpyCH4V endonucleases. The length of RFLP products was same as of those expected by computer analysis. CONCLUSION The two-step BT2 restriction mapping used in this study is an effective tool for reliable differentiation of the clinically relevant species of dermatophytes.
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Affiliation(s)
- Mahdi Abastabar
- Department of Medical Parasitology and Mycology, School of Public Health, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
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23
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Naseri A, Fata A, Najafzadeh MJ, Shokri H. Surveillance of Dermatophytosis in Northeast of Iran (Mashhad) and Review of Published Studies. Mycopathologia 2013; 176:247-53. [DOI: 10.1007/s11046-013-9688-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 08/04/2013] [Indexed: 10/26/2022]
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24
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Kozhichkina NV. Etiology of foot mycosis and onychomycosis. VESTNIK DERMATOLOGII I VENEROLOGII 2013. [DOI: 10.25208/vdv573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The article presents data from Russian and foreign sources related to the etiology of foot mycosis and onychomycosis. In spite of the substantial spread of data by countries and regions of the world, dermatophytes play a leading part in the etiology of foot mycosis and onychomycosis, and Trichophyton rubrum is found in most studies in more than one half of all cases. Yeast-like fungi of the Candida genus as well as mold fungi belong to less frequent pathogens of foot mycosis. However, they play a greater role in countries with hot and humid climate such as Brazil, Indonesia, Columbia and India. These data are important for the determination of organizational measures aimed at the early diagnostics of patients, timely treatment and implementation of anti-epidemic and disinfectant measures.
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25
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Rezaei-Matehkolaei A, Makimura K, de Hoog S, Shidfar MR, Zaini F, Eshraghian M, Naghan PA, Mirhendi H. Molecular epidemiology of dermatophytosis in Tehran, Iran, a clinical and microbial survey. Med Mycol 2013; 51:203-7. [DOI: 10.3109/13693786.2012.686124] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Beikert F, Anastasiadou Z, Fritzen B, Frank U, Augustin M. Topical Treatment of Tinea Pedis Using 6% Coriander Oil in Unguentum Leniens: A Randomized, Controlled, Comparative Pilot Study. Dermatology 2013; 226:47-51. [DOI: 10.1159/000346641] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 12/18/2012] [Indexed: 11/19/2022] Open
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27
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Kayman T, Sarıgüzel F, Koç A, Tekinşen F. Etiological agents of superficial mycoses in Kayseri, Turkey. J Eur Acad Dermatol Venereol 2012; 27:842-5. [DOI: 10.1111/j.1468-3083.2012.04589.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Mansouri P, Farshi S, Khosravi AR, Naraghi ZS, Chalangari R. Trichophyton Schoenleinii-induced widespread tinea corporis mimicking parapsoriasis. J Mycol Med 2012; 22:201-5. [PMID: 23518026 DOI: 10.1016/j.mycmed.2012.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 04/10/2012] [Accepted: 04/11/2012] [Indexed: 12/14/2022]
Abstract
We report a case of extensive tinea corporis in an 80-year-old woman on her forearms, thighs, legs, buttocks and trunk, mimicking parapsoriasis due to Trichophyton schoenleinii, without scalp involvement. Diagnosis of Trichophyton schoenleinii was confirmed by microscopy and mycological culture specimens.
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Affiliation(s)
- P Mansouri
- Dermatology Department, Imam Hospital, Tehran University of Medical Sciences, Keshavarz Boulevard, Tehran, Iran
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29
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Sadeghi G, Abouei M, Alirezaee M, Tolouei R, Shams-Ghahfarokhi M, Mostafavi E, Razzaghi-Abyaneh M. A 4-year survey of dermatomycoses in Tehran from 2006 to 2009. J Mycol Med 2011. [DOI: 10.1016/j.mycmed.2011.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Néji S, Makni F, Cheikrouhou F, Sellami H, Trabelsi H, Marrakchi S, Boudaya S, Turki H, Ayadi A. Les dermatomycoses à Trichophyton verrucosum à Sfax–Tunisie. J Mycol Med 2011; 21:198-201. [DOI: 10.1016/j.mycmed.2011.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 05/24/2011] [Accepted: 06/05/2011] [Indexed: 01/19/2023]
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31
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Aghamirian MR, Ghiasian SA. A clinico-epidemiological study on tinea gladiatorum in Iranian wrestlers and mat contamination by dermatophytes. Mycoses 2011; 54:248-53. [DOI: 10.1111/j.1439-0507.2009.01809.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Changes of Dermatophytoses in Southwestern Greece: An 18-Year Survey. Mycopathologia 2011; 172:63-7. [DOI: 10.1007/s11046-011-9397-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Accepted: 02/01/2011] [Indexed: 11/30/2022]
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33
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Ansar A, Farshchian M, Nazeri H, Ghiasian SA. Clinico-epidemiological and Mycological Aspects of Tinea Incognito in Iran: A 16-Year Study. ACTA ACUST UNITED AC 2011; 52:25-32. [DOI: 10.3314/jjmm.52.25] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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34
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Kiraz N, Metintas S, Oz Y, Koc F, Koku Aksu EA, Kalyoncu C, Kasifoglu N, Cetin E, Arikan I. The prevalence of tinea pedis and tinea manuum in adults in rural areas in Turkey. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2010; 20:379-386. [PMID: 20853199 DOI: 10.1080/09603123.2010.484861] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The aim of this study was to determine the frequency of tinea pedis and manuum (dermatophyte infections of the hands and feet) in adults in rural areas of Turkey, the risk factors and self-administered treatment options. A total of 2,574 people living in a rural area were enrolled in the study. Participants were asked demographic data, hygienic habits in a questionnaire. KOH preparations and culture were performed from suspicious lesions. Medical and alternative therapy methods and former dermatophytosis diagnosis history were taken from the respondents with suspicious lesions. Microbiological samples were taken from 285 (11.1%) participants. Culture was positive in 109 (4.2%) of those. The most common agent was Trichophyton rubrum. The predisposing factors were found as age older than 40, male gender and obesity. Forty-nine (44.9%) of patients had taken a medical therapy, 56 (51.4%) had performed non-medical methods (cologne, Lawsonia inermis-Henna and softener creams). Patient's education about the treatment compliance is important.
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Affiliation(s)
- Nuri Kiraz
- Department of Microbiology, Eskisehir Osmangazi University, Eskisehir, Turkey
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35
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Tullio V, Banche G, Allizond V, Roana J, Mandras N, Scalas D, Panzone M, Cervetti O, Valle S, Carlone N, Cuffini AM. Non-dermatophyte moulds as skin and nail foot mycosis agents: Phoma herbarum, Chaetomium globosum and Microascus cinereus. Fungal Biol 2010; 114:345-9. [DOI: 10.1016/j.funbio.2010.02.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 02/04/2010] [Accepted: 02/05/2010] [Indexed: 01/19/2023]
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Macura AB, Krzyściak P, Skóra M, Gniadek A. Dermatophyte species in superficial mycoses in the Kraków district, Poland in the years 1972-2007. Mycoses 2010; 53:148-52. [PMID: 19298357 DOI: 10.1111/j.1439-0507.2008.01684.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Considerable changes in the dermatophyte spectrum have been observed in the past century. Hence, many authors point out the necessity of performing periodical overviews of the mycological flora producing mycoses in humans in a given area. Analysis of dermatophyte species was performed, which were isolated from the lesions in patients suspected of superficial mycosis and referred to the Department of Mycology. The materials were isolated from patients suspected of superficial mycosis from Kraków region from January 1, 1972 through December 31, 2007. A total of 4983 dermatophyte strains were isolated from 23 124 specimens, which amounts to 21.5%. The percentage of dermatophytes isolated in the past decade decreased to 13.1% in the year 2007. Trichophyton rubrum outnumbered Trichophyton mentagrophytes during the entire survey period: 62.4 vs. 33.5%. The participation of Microsporum canis amounted to 1.71% and that of Epidermophyton floccosum to 1.32%. The species M. canis appeared by the end of the 1980s. The remaining dermatophyte species comprised 1% of the isolates. A considerable decrease in dermatophyte isolations has been observed since 2000. Trichophyton rubrum outnumbered T. mentagrophytes during the entire period of study. The percentages of T. rubrum and T. mentagrophytes are decreasing while the percentages of other dermatophytes are slowly increasing.
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Affiliation(s)
- A B Macura
- Department of Mycology, Chair of Microbiology, Jagiellonian University Medical College, Kraków, Poland.
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38
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Aghamirian MR, Ghiasian SA. Dermatophytes as a cause of epizoonoses in dairy cattle and humans in Iran: epidemiological and clinical aspects. Mycoses 2009; 54:e52-6. [DOI: 10.1111/j.1439-0507.2009.01832.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Koksal F, Er E, Samasti M. Causative agents of superficial mycoses in Istanbul, Turkey: retrospective study. Mycopathologia 2009; 168:117-23. [PMID: 19544086 DOI: 10.1007/s11046-009-9210-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Accepted: 05/06/2009] [Indexed: 10/20/2022]
Abstract
The aim of the present study was to determine the percentage of agents, which can give rise to superficial fungal infections in Istanbul, Turkey. Between 2000 and 2007, the clinical samples collected from 8,200 patients attending the outpatient Dermatology Clinic at Mihrimahsultan Medical Center were examined by direct microscopy and culture. Pathogen fungi were detected in 5,722 of the patients. Of the isolates were 4,218 (74%) dermatophytes, 1,196 (21%) Candida sp., 170 (3%) Malassezia furfur, and 138 (2%) Trichosporon sp. Among the dermatophytes, Trichophyton sp. was the most common isolate followed by Epidermophyton floccosum (243) and Microsporum sp. Among the Candida species, C. albicans (549) was also frequently found. Onychomycosis was the most prevalent type of infection, followed by tinea pedis, tinea cruris, tinea corporis, and tinea capitis. In conclusion, our study showed that the most common isolated agents from superficial infections were T. rubrum being Candida sp. the second most prevalent.
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Affiliation(s)
- Fatma Koksal
- Cerrahpasa Medical Faculty, Department of Microbiology and Clinical Microbiology, Istanbul University, Istanbul, Turkey.
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Neji S, Makni F, Cheikhrouhou F, Sellami A, Sellami H, Marreckchi S, Turki H, Ayadi A. Epidemiology of dermatophytoses in Sfax, Tunisia. Mycoses 2009; 52:534-8. [PMID: 19207834 DOI: 10.1111/j.1439-0507.2008.01651.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The distribution of dermatophytes varies in different countries and geographical areas depending on several factors. To determine the frequency of aetiological agents and the clinical variants of dermatophytoses, we carried out a study between 1998 and 2007. Out of 25 432 subjects suspected to have superficial mycoses, 9960 (39.2%) were affected with dermatophytoses; 14957 positive samples were obtained. The mean age was 35.7 years (range: 21 days to 97 years). Sex ratio was 0.9. Our patients were from urban regions in 81.9% of cases. The most common type of infection was onychomycosis (30.3%), followed by tinea pedis (24.8%), intertrigo (21.7%), tinea corporis (11.4%) and tinea capitis (9.6%). Fifteen patients had generalised dermatophytosis. Hadida and Schousboe disease was diagnosed in one case with lethal evolution. The most isolated dermatophyte was Trichophyton rubrum (74.5%), followed by T. violaceum (7.9%), T. mentagrophytes (7.5%), Microsporum canis (3.8%), Epidermophyton floccosum (0.7%) and T. verrucosum (0.54%). Other species were occasionally isolated: T. schoenleinii, T. tonsurans, M. audouinii and M. ferrugineum. The prevalence of dermatophytoses remains high in our country (996 cases/year). Trichophyton rubrum is the predominant causal agent. However, zoophilic agents become more prevalent. Epidemiological surveys are an essential tool for developing strategies for infection control.
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Affiliation(s)
- Sourour Neji
- Laboratory of Parasitology-Mycology, HU Habib Bourguiba Sfax, Sfax, Tunisia
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Czaika VA. Superficial dermatomycoses worldwide: multinational treatment experience with a combination of isoconazole nitrate and diflucortolone valerate. Introduction. Mycoses 2008; 51 Suppl 4:1. [PMID: 18783558 DOI: 10.1111/j.1439-0507.2008.01604.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Viktor A Czaika
- Dermatology Out-patient Department of Internal Medicine, Helios Clinic Bad Saarow, Bad Saarow, Germany.
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