Outbreak ofTinea capitis caused by Microsporum ferrugineum in Thailand

Wisuthsarewong, Wanee; Chaiprasert, Angkana; Viravan, Suchitra

doi:10.1007/bf00632337

Cited by 11 publications

(9 citation statements)

References 26 publications

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“…ferrugineum is a primary cause of prepubertal tinea capitis among oriental races and of inflammatory infections in Caucasians (Kane et al, 1997;Wisuthsarewong et al, 1996). It is a rare causative agent of dermatophytosis in Iran and was reported from Isfahan in the centre (Chadeganipour et al, 1997) and Ahvaz in the south-western part of the country (Mahmoudabadi, 2006).…”

Section: Differentiation Of M Canis and Its Close Relativesmentioning

confidence: 99%

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Multilocus differentiation of the related dermatophytes Microsporum canis, Microsporum ferrugineum and Microsporum audouinii

Rezaei‐Matehkolaei

Makimura

Hoog

et al. 2012

Journal of Medical Microbiology

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Microsporum ferrugineum, an uncommon causative agent of dermatophytosis, has restricted endemicity. Iranian strains suspected to be M. ferrugineum from two patients with tinea were analysed using the rDNA internal transcribed spacer (ITS) region and the partial b-tubulin (BT2) and translation elongation factor 1-a (TEF1) genes. Strains were compared to reference strains to differentiate M. ferrugineum from its relatives Microsporum canis and Microsporum audouinii. Inter-species differences for TEF1 and BT2 were found to be higher than for the ITS region, which is the current molecular standard for species identification in dermatophytes. Intra-species variation was zero for each of the markers. In silico analysis showed that the restriction enzymes BanI and BshNI were together sufficient to differentiate the three species based on TEF1, whereas a two-step digestion was needed with BT2 or the ITS region. The prevalence of M. ferrugineum in clinical samples in Iran appeared to be higher than suspected on the basis of routine phenotypic identification.

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Section: Differentiation Of M Canis and Its Close Relativesmentioning

confidence: 99%

“…ferrugineum has limited endemicity in the Balkans, the Middle East, East Asia and Nigeria (Kane et al, 1997;Weitzman & Summerbell, 1995;Wisuthsarewong et al, 1996). In Iran, this species is rare (Mahmoudabadi, 2006).…”

Section: Introductionmentioning

confidence: 99%

Multilocus differentiation of the related dermatophytes Microsporum canis, Microsporum ferrugineum and Microsporum audouinii

Rezaei‐Matehkolaei

Makimura

Hoog

et al. 2012

Journal of Medical Microbiology

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“…In the present study we performeda cluster analysis of the A. otae-related species (M. canis, M. audouinii, M. distortum (24,26), M. equinum (12), M. langeronii, and M. ferrugineum (30)) and members of the M. gypseum complex and related species (A. fulvum, A. gypseum, A. incurvatum, M. duboisii (14), M. boullardii, M. gallinae, M. nanum); for this we used base sequences of ITS I to construct a DNA sequence database of human and animal pathogenic Microsporum species and their teleomorph states to serve as a reliable species identification system.…”

mentioning

confidence: 99%

Cluster Analysis of Human and Animal Pathogenic Microsporum Species and Their Teleomorphic States, Arthroderma Species, Based on the DNA Sequences of Nuclear Ribosomal Internal Transcribed Spacer 1

Makimura

Tamura

Murakami

et al. 2001

Microbiology and Immunology

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Abstract:We performed a cluster analysis of human and animal pathogenic Microsporum species and their teleomorphic states, Arthroderma species, including A. otae-related species (M. canis, M. audouinii, M. distortum, M. equinum, M. langeronii, and M. ferrugineum) and M. gypseum complex (A. fulvum, A. gypseum, and A. incurvatum) using DNA sequences of nuclear ribosomal internal transcribed spacer 1 (ITS1). The dendrogram showed the members of A. otae-related species to be monophyletic and to construct an extremely closely related cluster with a long horizontal branch. This ITS1-homologous group of A. otae was organized in 6 unique genotypes, while sequences of the members of the ITS J-homologous group of M. gypseum complex are more diverse. This ITS I-based database of Microsporum species and their teleomorphic states will provide a useful and reliable species identification system: it is time-saving (takes two to three days), accurate and applicable even to strains with atypical morphological features or in a non-culturable state.Key words: Microsporum species,Arthroderma species, Internal transcribed spacer 1, DNA sequences Microsporum species are important members of the dermatophytes (filamentous fungi, classified as Euascomycetes and consisting of the genera Microsporum, Trichophyton and Epidermophyton), which have the capacity to invade keratinized tissues of humans and other animals to produce an infection, dermatophytosis (9,16,29 Specific DNA sequences of internal transcribed spacer 1 (ITS I) of ribosomal DNA in the human and animal pathogenic Microsporum species and their teleomorphic states, Arthroderma species, were therefore determined and a cluster analysis performed. ITS I is located between the 18S and 5.8S rONA. As reported previously, the variable ITS regions have been proven useful in resolving relationships between close taxonomic relatives (3), and in the field of medical mycology several phylogenetic studies using the ITS I region were recently documented (1,20,27,28). The authors have reported that it is feasible to successfully perform species identification and/or strain typing of Trichophyton species (the major dermatophytes; 2, 19, 22), which are hard to identify from their morphological features, by demonstrating their dendrogram using a base pair sequence Abbreviations: AFLP, amplified fragment length polymorphism; EDTA, ethylenediaminetetraacetic acid; ITS, internal transcribed spacer; peR, polymerase chain reaction; RAPD, random amplificationof polymorphic DNA; SDA, Sabourauddextrose agar.

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“…ferrugineum is an anthropophilic dermatophyte and endemic in areas such as Balkans, Middle East, East Asia and Nigeria; sporadic cases have been reported from other parts of the world (2)(3)(4). It is mostly reported as a cause of juvenile tinea capitis.…”

Section: Microsporummentioning

confidence: 99%

The Identification of an Uncommon Dermatophyte as an Agent of Tinea Corporis, Microsporum Ferrugineum / Tinea Corporis’in Nadir Bir Etkeni Olarak Microsporum Ferrugineum’un İdentifikasyonu

Qoraan

Bulur

2017

Osmangazi Journal of Medicine

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A case of 29 years old female who admitted to Eskisehir Osmangazi University Hospital of Medical Faculty, Dermatology Clinic because of ringworm skin rashes resembling tinea corporis has been represented in this paper. Hyaline septate branching hyphae were seen in microscopic examination of skin scrapping specimens and the agent grown on Sabouraud dextrose agar (SDA) and mycobiotic agar including cycloheximide and chloramphenicol after four weeks. Based on its microscopic characteristics and the results of several phenotypic tests such as frequent reflexive hyphae formation on corn meal tween 80 agar, yellow pigment production on Lowenstein Jensen agar, positive urease test in Christensen urea broth and failure to grow at 37ºC on SDA, the isolate was identified as Microsporum ferrugineum which share similar macroscopic characteristics with dysgonic strains of other dermatophytes. Topical sertaconazole nitrate implementation was started for treatment and clinical and mycological response was observed after one month.

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Outbreak ofTinea capitis caused by Microsporum ferrugineum in Thailand

Cited by 11 publications

References 26 publications

Multilocus differentiation of the related dermatophytes Microsporum canis, Microsporum ferrugineum and Microsporum audouinii

Multilocus differentiation of the related dermatophytes Microsporum canis, Microsporum ferrugineum and Microsporum audouinii

Cluster Analysis of Human and Animal Pathogenic Microsporum Species and Their Teleomorphic States, Arthroderma Species, Based on the DNA Sequences of Nuclear Ribosomal Internal Transcribed Spacer 1

The Identification of an Uncommon Dermatophyte as an Agent of Tinea Corporis, Microsporum Ferrugineum / Tinea Corporis’in Nadir Bir Etkeni Olarak Microsporum Ferrugineum’un İdentifikasyonu

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