| [trichophyton mentagrophytes var. erinacei infection contracted from a hedgehog]. | occasionally the hedgehog (erinaceus europaeus) is infected by trichophyton mentagrophytes (robin) blanchard var. erinacei. this zoophilic dermatophyte may cause a difficult human phlegmatic trichophytia infection. the thread-fungus grows on the usual culture-medium with a clear-white surface without radius-folding. the lower surface of the culture shows a typical brillant-yellow colour. microscopically the fungus presents abundant microconidia formation and a few distinct macroconidia. cross-br ... | 1979 | 155666 |
| electrophoretic analyses of proteins, peroxidases, and phosphatases of single and mated cultures of arthroderma benhamiae. | | 1976 | 180410 |
| ringworm of the african hedgehog (erinaceus albiventris) in the ivory coast due to arthroderma benhamiae. | isolates of the conidial state of arthroderma behnhamiae (+ mating strain) were obtained from dry, scaly lesions on the ears of 3 hedgehogs in the ivory coast. this is a new record for this country. | 1978 | 220538 |
| chromatographic separation of pigments produced by arthroderma benhamiae. | variations in pigment production under different cultural conditions have limited the usefulness of pigmentation for identifying strains of arthroderma benhamiae. if culture conditions are constant, pigmentation by individual strains is reproducible, and may be extracted and separated by thin layer chromatography. this allows recognition of pigment similarities which may be masked in whole colonies, thereby greatly enhancing the value of pigmentation in strain identification. | 1975 | 235792 |
| the taxonomic status of the hedgehog fungus trichophyton erinacei. | | 1977 | 562002 |
| mutants of arthroderma benhamiae. | the object of these studies was to isolate conditionally lethal mutants of arthroderma benhamiae whose vegetative growth was temperature sensitive (ts). three sorts of mutants were derived from nitrosoguanidine treatment of the microconidia of a. benhamiae: (i) ts "pleomorphic", (ii) ts "non-pleomorphic", and (iii) slow growers (sg) which were not temperature sensitive. the growth of wild type a. benhamiae, as measured by colony diameters, was 6 mm/day at 37 degrees c (chosen as non-permissive f ... | 1979 | 571626 |
| arthroderma benhamiae infection in the central african hedgehog erinaceus albiventris, and a report of a human case. | the occurrence of ringworm caused by arthroderma benhamiae ajello & cheng is reported in central african hedgehogs (erinaceus albiventris wagner), caught near nairobi, kenya. of the 45 animals examined, 10 were positive on culture, including a litter of 4 young. six infected animals were without lesions, and 2 littermates showed scaly areas similar to those described in e. europaeus l. caused by trichophyton erinacei (smith & marples) padhye & carmichael. no correlation with mite infestation or ... | 1975 | 1171366 |
| hazards from hedgehogs: two case reports with a survey of the epidemiology of hedgehog ringworm. | two related cases of ringworm caused by contact with an infected hedgehog are reported. the causal fungus, trichophyton erinacei, was isolated from human and animal cases. the epidemiology of hedgehog ringworm is discussed. | 1992 | 1451288 |
| phylogeny of the genera trichophyton using mitochondrial dna analysis. | diversity of mitochondrial dna (mtdna) was investigated in 92 trichophyton rubrum strains, 2 t. mentagrophytes var. mentagrophytes, 2 t. m. var. interdigitale, 2 t. m. var. goetzii, 1 t. m. var. erinacei, 2 t. quinckeanum, 2 t. schoenleinii, 1 t. tonsurans, 2 t. verrucosum var. album, 2 t. v. var. discoides, 1 t. violaceum var. violaceum, 1 arthroderma benhamiae, and 1 a. vanbreuseghemii using endonucleases, hae iii, msp i, hind iii, xba i, and bgl ii. trichophyton species were divided into 7 gr ... | 1992 | 1640973 |
| taxonomy of trichophyton interdigitale (trichophyton mentagrophytes var. interdigitale) by restriction enzyme analysis of mitochondrial dna. | the relationship between trichophyton interdigitale (trichophyton mentagrophytes var. interdigitale) and the other members of the t. mentagrophytes complex was studied by restriction enzyme analysis of mitochondrial dna (mtdna). the mtdna of 22 isolates of t. interdigitale from japanese patients with dermatophytosis was extracted, digested with the restriction enzymes hae iii, msp i, or hind iii, and the restriction profiles obtained compared with those of arthroderma simii, arthroderma benhamia ... | 1990 | 1698960 |
| [inflammatory tinea capitis caused by trichophyton erinacei in a 3 year-old child]. | | 1991 | 1789653 |
| zoonoses and other findings in hedgehogs (erinaceus europaeus): a survey of mortality and review of the literature. | a survey of mortality in hedgehogs (erinaceus europaeus) was carried out between july 1976 and november 1986. most were from norfolk. of the 74 examined, 35 (47.3 per cent) were road casualties, one of which yielded salmonella typhimurium phage type (pt) 104. of the remaining 39, 13 (33.3 per cent) had salmonellosis due to s enteritidis pt 11. this organism, which appears to be common and widespread in hedgehogs in england was found in 10 separate incidents. the only other zoonosis was ringworm ... | 1991 | 2035215 |
| teleomorphs and mating types in trichophyton mentagrophytes complex. | in the set of 132 strains of trichophyton mentagrophytes isolated from humans (129 strains) and animals (3 strains) with dermatophytosis in czechoslovakia, 41 strains were classified as arthroderma benhamiae. out of them, 40 strains were of mating type + and one strain of type -. ten strains were a. vanbreuseghemii, including 3 strains of mating type + and 7 strains of type -. other strains studied did not form any fertile cleistothecia during crossing. some strains of a. benhamiae developed def ... | 1989 | 2533818 |
| isoelectric focusing applied to taxonomic differentiation of the trichophyton mentagrophytes complex and the related trichophyton interdigitale. | somatic extracts from dermatophytes of the trichophyton mentagrophytes complex and of trichophyton interdigitale grown on trypticase soy broth were prepared for analytical isoelectric focusing in thin layer polyacrylamide gels over the ph range 4-6.5. a total of 44 strains were studied: 8 arthroderma benhamiae (4 americano-european and 4 african races), 4 arthroderma vanbreuseghemii, 6 trichophyton mentagrophytes and 26 trichophyton interdigitale. laser densitometric analysis revealed two outsta ... | 1989 | 2622478 |
| hybridization and sexual stimulation in trichophyton mentagrophytes. | mating and sexual stimulation tests applied to 132 strains of this dermatophyte isolated in czechoslovakia revealed among them strains of arthroderma benhamiae (40 strains of the + mating type, one of the - mating type) and a. vanbreuseghemii (three strains of the + type, seven of the - type). no dependence was found concerning the anamorphic variety (t. mentagrophytes var. granulosum, var. interdigitale, var. mentagrophytes, var. quinckeanum), teleomorphic species, mating type and the clinical ... | 1989 | 2707687 |
| dermatophyte-hormone relationships: characterization of progesterone-binding specificity and growth inhibition in the genera trichophyton and microsporum. | we reported previously that trichophyton mentagrophytes contains a cytoplasmic macromolecule which specifically binds progesterone. progesterone is also an effective inhibitor of growth of the fungus. we report here studies which characterize more fully the specific binding properties and the functional responses of t. mentagrophytes and taxonomically related fungi to a series of mammalian steroid hormones. scatchard analysis of [3h]progesterone binding in both the + and - mating types of arthro ... | 1988 | 3182998 |
| genetic analysis of pigmentation in arthroderma benhamiae. | | 1974 | 4436642 |
| a genetic study of an extracellular elastin-hydrolysing protease in the ringworm fungus arthroderma benhamiae. | | 1973 | 4697828 |
| transmission and course of trichophyton erinacei infections in british hedgehogs. | | 1973 | 4703464 |
| single-locus, two-allele basis for inheritance of the granular and adowny form of the ringworm fungus arthroderma benhamiae (=trichophyton metagrophytes var. granulosum). | | 1973 | 4734425 |
| observations on african and european strains of arthroderma benhamiae. | | 1974 | 4856826 |
| tinea barbae caused by trichophyton erinacei. | | 1974 | 4859567 |
| is arthroderma benhamiae the perfect state of trichophyton mentagrophytes? | | 1972 | 5043957 |
| [trichophyton mentagrophytes var. erinacei, a pathogen for both man and hedgehogs]. | | 1971 | 5170397 |
| trichophyton mentagrophytes var. erinacei in hedgehog nests. | | 1969 | 5346185 |
| trichophyton mentagrophytes var. erinacei in british hedgehogs. | | 1969 | 5346186 |
| mating behaviour of trichophyton mentagrophytes varieties paired with arthroderma benhamiae mating types. | | 1969 | 5385154 |
| further observations on trichophyton erinacei and t. proliferans. | | 1971 | 5553911 |
| meiosis in arthroderma benhamiae (=trichophyton mentagrophytes). | | 1968 | 5679669 |
| spirals in cultures of trichophyton mentagrophytes var. erinacei. smith and marples, 1963. | | 1965 | 5874153 |
| trichophyton mentagrophytes var. erinacei. | | 1963 | 5875362 |
| human infection due to the hedgehog fungus, trichophyton mentagrophytes var. erinacei. | three human cases of skin infection caused by trichophyton mentagrophytes var. erinacei are recorded. a review of work on the incidence and ecology in hedgehogs and as a source of human infection is given. it is suggested that a true increase in human infections is occurring. a description of the colonial and microscopical appearance of the fungus and their variance with other t. mentagrophytes varieties is discussed. the name trichophyton erinacei is proposed as being taxonomically more correct ... | 1966 | 5948666 |
| dna homology studies in the taxonomy of dermatophytes. | the taxonomy of the dermatophyte genera trichophyton, microsporum and epidermophyton was investigated by determinations of dna homology. dna extracted from 10 isolates (seven species) of dermatophytes was reannealed by hydroxyapatite chromatography. dna homology levels of 65-80% corresponded to species within a single genus. there was a general agreement with established classification, particularly in assigning species to separate genera. dna from the trichophyton state of arthroderma benhamiae ... | 1984 | 6328688 |
| vaccination procedures and the infectivity of dermatophyte lesions. | by means of an experimental guinea pig model, the immunogenicities of a live spore vaccine, a killed hyphal cell wall vaccine and a soluble cytoplasmic extract vaccine of trichophyton mentagrophytes var. erinacei were compared, and their modifying influence on the infectivity and duration of experimental dermatophyte lesions examined. of the three vaccines, the live-spore one was the most effective and closely simulated the type of immunity which develops following a natural infection. lesions p ... | 1983 | 6855874 |
| human infections with trichophyton mentagrophytes var erinacei in melbourne, australia. | | 1981 | 7221801 |
| dermatophytoses in iran. | a total of 12,150 cases of suspected dermatophytoses in different areas of iran were studied between 1986 and 1991. the age groups most commonly infected were 1-9 and 20-29 years. clinical diagnosis was confirmed in only 9345 cases by laboratory examination. of these positive samples, 1633 cases were found to be positive by direct microscopic observation only, 429 by culture only and 7283 by both techniques. scalp ringworm of children was the most common type of tinea. but according to the rate ... | 1994 | 7935592 |
| phylogenetic analysis of 8 dermatophyte species using chitin synthase 1 gene sequences. | nucleotide sequences of chitin synthase 1 (chs1) gene of eight species of dermatophytes, arthroderma benhamiae, a. fulvum, a. grubyi, a. gypseum, a. incurvatum, a. otae, a. simii and a. vanbreuseghemii were obtained and analysed for their phylogenetic relationship. a 600-bp genomic dna fragment of the chs1 gene was amplified from these dermatophytes by polymerase chain reaction (pcr) and sequenced. the chs1 nucleotide sequences of these eight dermatophyte species showed more than 85% similarity ... | 1997 | 9470404 |
| partial purification and kinetic studies of exocellular proteinase from trichophyton mentagrophytes var. erinacei. | the dermatophyte trichophyton mentagrophytes var. erinacei isolated from a patient with tinea cruris was cultured in peptone-glucose broth from which an exocellular proteinase was obtained. the enzyme was partly purified by sephadex g-100 gel filtration. its molecular weight was determined to be 33,000 on sodium dodecyl sulphate-polyacrylamide gel electrophoresis (sds-page). the optimal ph was 8.5, the optimal temperature 35 degrees c. the proteolytic activity was specifically increased against ... | 1998 | 9670769 |
| phylogenetic classification of trichophyton mentagrophytes complex strains based on dna sequences of nuclear ribosomal internal transcribed spacer 1 regions. | using internal transcribed spacer 1 (its1) region ribosomal dna sequences from 37 stock strains and clinical isolates provisionally termed trichophyton mentagrophytes complex in japan, we demonstrated the mutual phylogenetic relationships of these strains. members of this complex were classified into 3 its1-homologous groups and 13 its1-identical groups by their sequences. its1-homologous group i consists of arthroderma vanbreuseghemii, t. mentagrophytes human isolates, and several strains of t. ... | 1998 | 9705405 |
| molecular analysis of chitin synthase 1 (chs1) gene sequences of trichophyton mentagrophytes complex and t. rubrum. | nucleotide sequences of chitin synthase 1 (chs1) gene of dermatophytes, arthroderma benhamiae, a. simii, a. vanbreuseghemii, trichophyton mentagrophytes var. interdigitale (t. interdigitale), and t. rubrum were analyzed for their phylogenetic relationship. about 620-bp genomic dna fragments of the chs1 gene were amplified from these dermatophytes by polymerase chain reaction (pcr) and sequenced. the chs1 nucleotide sequences of these five dermatophytes showed more than 90% similarity between the ... | 1998 | 9732529 |
| the first isolation of arthroderma benhamiae in japan. | a clinical isolate of trichophyton mentagrophytes from rabbit was examined by polymerase chain reaction (pcr) analysis and a mating experiment. the species-specific primers designed from the nucleotide sequences of the chitin synthase 1 (chs1) gene in the teleomorph of arthroderma benhamiae amplified a fragment from genomic dna samples of a. benhamiae and the clinical isolate but not from those of a. simii and a. vanbreuseghemii. on the other hand, the species-specific primers of a. simii and a. ... | 1998 | 9776399 |
| phylogenetic classification and species identification of dermatophyte strains based on dna sequences of nuclear ribosomal internal transcribed spacer 1 regions. | the mutual phylogenetic relationships of dermatophytes of the genera trichophyton, microsporum, and epidermophyton were demonstrated by using internal transcribed spacer 1 (its1) region ribosomal dna sequences. trichophyton spp. and microsporum spp. form a cluster in the phylogenetic tree with epidermophyton floccosum as an outgroup, and within this cluster, all trichophyton spp. except trichophyton terrestre form a nested cluster (100% bootstrap support). members of dermatophytes in the cluster ... | 1999 | 10074502 |
| species-specific primers of chitin synthase 1 gene for the differentiation of the trichophyton mentagrophytes complex. | species-specific primers were designed from nucleotide sequences of the chitin synthase 1 gene (chs1) of arthroderma benhamiae, a. simii and a. vanbreuseghemii. the a. benhamiae-specific primer amplified a 560-bp fragment from a. benhamiae but not from a. simii and a. vanbreuseghemii. the a. simii-specific primers amplified a 470-bp fragment from a. simii but not from a. benhamiae and a. vanbreuseghemii. the a. vanbreuseghemii-specific primers amplified a 360-bp fragment from a. vanbreuseghemii ... | 1999 | 10394852 |
| detection of sugars and aminoacids in antigens of trichophyton mentagrophytes var. erinacei. | crude antigen extracted from mycelium of trichophyton mentagrophytes var. erinacei by means of phenol and ethylene glycol was studied for sugar and amino acid constituents using deae-sephadex a-50 column chromatography for fractionation. the results revealed that the crude antigen contains 13 sugars and 15 amino acids. it is presumed that the antigenicity is based on glycopeptide fractions. | 1999 | 10424091 |
| trichophyton erinacei: an unusual cause of kerion. | | 1999 | 10583103 |
| two cases of tinea corporis by infection from a rabbit with arthroderma benhamiae. | the first cases of tinea corporis with arthroderma benhamiae in japan are reported. a 7-year-old girl and a 30-year-old mother in shimane prefecture suffered from dermatophyte infections on the neck, shoulder, arms and leg. three isolates from the two patients and a rabbit by which they supposedly were infected, were identified as trichophyton mentagrophytes. on the bases of mating tests using the tester strains of both the african race and the americano-european race of a. benhamiae, they were ... | 2000 | 11064326 |
| chitin synthase 1 (chs1) gene sequences of microsporum equinum and trichophyton equinum. | chitin synthase 1 (chs1) genes from microsporum equinum and trichophyton equinum were compared with those of the other dermatophytes. the chs1 nucleotide sequences of these dermatophytes from horses showed more than 80% similarity to those of arthroderma benhamiae, a. fulvum, a. grubyi, a. gypseum, a. incruvatum, a. otae, a. simii, a. vanbreuseghemii, epidermophyton floccosum, t. mentagrophytes var. interdigitale (t. interdigitale), t. rubrum and t. violaceum. especially high degree of nucleotid ... | 2001 | 11118744 |
| the histological lesions of trichophyton mentagrophytes var erinacei infection in dogs. | a retrospective study of the histological features of four cases of canine trichophyton mentagrophytes var erinacei infection is reported. in all four dogs the initial lesions affected the dorsal muzzle and in two dogs the lesions spread to more distant sites on the body. clinically, the lesions were characterized by scaling, crusting and hair loss. histologically, the main lesions were characterized by acanthosis, epidermal, ostial and infundibular hyperkeratosis, serocellular crusting, mural f ... | 2001 | 11360338 |
| exocellular enzyme activity of dermatophytes and other fungi isolated from ruminants in southern iraq. | sixteen fungal species were isolated from 182 specimens collected from four ruminants (buffalo, camel, cattle and sheep) in southern iraq. fungi represented by five species of dermatophytes and eleven species of other fungi were screened for the activity of four enzymes: keratinase. proteinase, lipase and amylase. keratinase was found to be produced by all of the dermatophytes and non-dermatophytes, except for paecillomyces variottii and scytalidium lignicola. however, high keratinase activity w ... | 2001 | 11407490 |
| molecular epidemiology of arthroderma benhamiae, an emerging pathogen of dermatophytoses in japan, by polymorphisms of the non-transcribed spacer region of the ribosomal dna. | in japan, several isolates of arthroderma benhamiae, a teleomorphic member of trichophyton mentagrophytes complex, which were not found by earlier mating studies, have recently been recovered from human and animal dermatophytoses. in the present study, intraspecies polymorphism of a. benhamiae isolated in japan was investigated using restriction fragment length polymorphisms (rflp) of the non-transcribed spacer (nts) region of the ribosomal dna (rdna), a method introduced to detect intraspecies ... | 2001 | 11457639 |
| partial purification and some biochemical characteristics of exocellular keratinase from trichophyton mentagrophytes var. erinacei. | the dermatophyte trichophyton mentagrophytes var. erinacei isolated from patients infected with tinea cruris was cultured in sabouraud dextrose broth, from which an exocellular keratinase extract was obtained. the keratinase was partially purified with sephadix g-100 gel filtration. some biochemical characteristics of the purified enzyme were examined. its molecular weight was estimated to be 38,000 dalton on sodium dodecyle sulfate polyacrylmide gel electrophoresis (sds-page). the optimal ph wa ... | 2001 | 11469759 |
| arthroderma benhamiae infection in a rabbit. | the isolate from the rabbit with dermatophytosis which was transmitted to the owners was proved to be arthroderma benhamiae (-) by mating experiments as well as by chitin synthase 1 (chsi) gene analysis. | 2001 | 11558553 |
| synthesis of some 4-(alkylidene/arylidene)amino-2,4-dihydro-5- (2-thienyl)-3h-1,2,4-triazole-3-thiones tested for antimicrobial activity. | a series of 4-(alkylidene/arylidene)amino-2,4-dihydro-5- (2-thienyl)-3h-1,2,4-triazole-3-thiones (2a-h) were synthesized. the structural elucidation of all the compounds was made on the basis of analytical and spectral data (ir, 1h-nmr and eims). all synthesized compounds were evaluated for in vitro antimicrobial activity against various bacteria and fungi. some of the compounds demonstrated antimicrobial activity against staphylococcus aureus atcc 6538, staphylococcus epidermidis atcc 12228, tr ... | 2001 | 11822231 |
| tinea capitis in infants less than 1 year of age. | tinea capitis is the most frequent manifestation of dermatophyte infection in children, but because it is rare in the first months of life it is often misdiagnosed. here we report 15 cases of tinea capitis observed in italy in infants less than 1 year of age. there were 10 boys and 5 girls (mean age 6 months). diagnosis was confirmed by mycologic examination. microsporum canis was isolated in nine cases and trichophyton mentagrophytes in three. these 12 infants were italian and animals were the ... | 2001 | 11841628 |
| [molecular epidemiology of japanese isolates of arthroderma benhamiae by polymorphisms of non-transcribed spacer region of the ribosomal dna]. | we made a molecular epidemiological study of arthroderma benhamiae, a teleomorphic species of the trichophyton mentagrophytes complex, using polymorphisms of the non-transcribed spacer region (nts) of ribosomal dna. thirteen isolates -hyogo 2 isolates, saitama 2 isolates, shimane 2 isolates, tokyo 1 isolate, nagasaki 4 isolates- were isolated from dermatophytoses lesions on pet animals and/or their owners, while 2 gifu isolates were cultured from lesions on the face and hand of a pet shop worker ... | 2002 | 11865294 |
| case report. first report on human ringworm caused by arthroderma benhamiae in japan transmitted from a rabbit. | two human cases of tinea corporis due to arthroderma benhamiae (teleomorph of trichophyton mentagrophytes) were described. they acquired the infection from their cross-bred rabbit. the three clinical isolates from a human couple and a pet rabbit had been identified as a. benhamiae by chitin synthase 1 (chs1) gene analysis as well as by mating experiments. there was no previous isolate of a. benhamiae from humans in japan, although we had reported the first isolate of a. benhamiae from a rabbit i ... | 2002 | 12000518 |
| a japanese case of tinea corporis caused by arthroderma benhamiae. | we report a case of tinea corporis in japan caused by arthroderma benhamiae. a 53-year-old female scientist, who had been working on dermatophytes in a laboratory, noticed pruritic erythema on the outer corner of her left lower eyelid. she used a steroid ointment for three days, but the lesion continued to expand. when she visited our clinic, the erythema was 15 mm in diameter and clearly demarcated with a slightly depressed center. a scale from the periphery of the erythema was positive with di ... | 2002 | 12027087 |
| two arthroderma benhamiae isolates showing mitochondrial dna type of trichophyton verrucosum. | two trichophyton mentagrophytes isolates from skin lesions on a girl and her rabbit, which were identified as arthroderma benhamiae by mating tests, were studied by mtdna (mitochondrial dna) analysis and sequencing of its (internal transcribed spacer) regions of nuclear ribosomal rna genes. the mtdna-rflp (restriction fragment length polymorphism) patterns showed the two isolates to be t. verrucosum rather than a. benhamiae. the its sequence showed the isolates to be closer to a. benhamiae ameri ... | 2002 | 12040369 |
| isolation and genotype analyses of ascospores produced between genetically different arthroderma benhamiae strains. | thirty-one single ascospore cultures were obtained from one ascoma produced in mating of rv 26678 (+) (institut de medicine tropicale, antwerp, belgium) and kmu 4169 (-) (dept. dermatology, kanazawa medical university, uchinada, japan), which are genetically different strains of arthroderma benhamiae. the isolation was performed with the aid of an inverted microscope and a binocular microscope. the internal transcribed spacer (its) regions of the nuclear ribosomal rna gene of all the ascospore c ... | 2002 | 12145632 |
| degradation of keratin substrates by fungi isolated from sewage sludge. | four fungal species including two dermatophytes and two saprophytes were isolated from sewage sludge samples at basrah (iraq) they were tested for their degradative ability towards three types of keratin substrates (human hair, chicken feathers and wool). the rate of keratin degradation was expressed as weight loss over three weeks of incubation using a liquid culture medium. human hair had the highest degradation rate by colonization of chrysosporium pannicola and microsporum gypseum at a rate ... | 2002 | 12206319 |
| an isolate of arthroderma benhamiae with trichophyton mentagrophytes var. erinacei anamorph isolated from a four-toed hedgehog (atelerix albiventris) in japan. | a female four-toed hedgehog probably imported from africa and kept as a pet by a family suffered from depilation and mite (caparinia tripilis) infection. depilated quills were inoculated on a commercially available medium and an isolate of the dermatophytes was obtained. a giant colony after 14 days incubation on yeast extract sabourauds agar had a central umbo with white granular surface and a yellow pigment ring in the reverse. the hedgehog isolate produced numerous elongated microconidia sing ... | 2002 | 12402026 |
| chitin synthase 1 gene of arthroderma benhamiae isolates in japan. | in the present study, the chitin synthase 1 (chs1) gene of eight clinical isolates of arthroderma benhamiae in japan was investigated. nucleotide sequence analysis of the chs1 gene fragments from clinical isolates of a. benhamiae and from standard strains of americano-european race and african race a. benhamiae indicated more than 90% similarities among these dermatophytes. an especially high degree of similarity was noted in nucleotide sequence chs1 gene fragments, with more than 99% among eigh ... | 2002 | 12572715 |
| the epidemiology and mating behavior of arthroderma benhamiae var. erinacei in household four-toed hedgehogs (atelerix albiventris) in japan. | an epidemiological survey of trichophyton mentagrophytes var. erinacei in the household hedgehog and other rodents was made between january 17, 2002 and february 28, 2002 in japan. quills and hairs were collected from sources identified via the internet. the fungus was isolated only from the quills of four-toed hedgehogs (7/18; 39%) from kanto to kyushu regions. isolates were examined morphologically, physiologically and genetically, and identified as t. mentagrophytes var. erinacei anamorph. th ... | 2003 | 12590257 |
| a case of kerion celsi due to arthroderma benhamiae identified by dna sequences of nuclear ribosomal internal transcribed spacer 1 regions. | we describe a case of a 4-year-old boy with a 1-month history of a purulent lesion on his scalp. his hair samples revealed fungal organisms and trichophyton mentagrophytes was cultured from the sample. we analysed the dna sequences of the nuclear ribosomal internal transcribed spacer 1 (its1) region of the isolated fungus. these sequences were in accordance with t. mentagrophytes animal 4 type. in mating experiments, our strain only responded to the arthroderma benhamiae americano-european race ... | 2003 | 12964717 |
| [current types of human dermatophytoses transmitted from animals]. | microsporum canis, trichophyton verrucosum and t. mentagrophytes are the most common dermatophytes isolated from human and animals. m. canis infection in human is closely related to companion animals such as cats and dogs. according to a recent epidemiological survey in japan, human m. canis infection is decreasing. t. verrucosum is usually transmitted from cows to human. t. verrucosum infection in human is not restricted to daily farming prefectures, however, suggesting that this species has al ... | 2003 | 14615787 |
| first report of arthroderma benhamiae in switzerland. | dermatophytes are usually identified on the basis of macroscopic characteristics and microscopic examination of the cultures. identification of dermatophytes often remains difficult or uncertain because there are variations from one isolate to another and overlapping characteristics between species. | 2004 | 15118380 |
| [chitin synthase (chs) gene analysis of dermatophytes]. | about 620-bp genomic dna fragments of chs1 genes were amplified from 13 species of dermatophytes by polymerase chain reaction (pcr) and sequenced. the phylogenetic analysis of chs1 gene fragments of these dermatophyte species revealed that 3 genera of epidermophyton, microsporum and trichophyton were genetically different from each other. the molecular analysis of chs1 genes will provide useful information for the identification of dermatophytes. the species-specific primers were designed from t ... | 2004 | 15118658 |
| ascospore-derived isolate of arthroderma benhamiae with morphology suggestive of trichophyton verrucosum. | sixty-one ascospores were isolated from an ascocarp produced by the mating of two arthroderma benhamiae strains, rv 26678 and kmu4169, that differed in their mitochondrial dna (mtdna) restriction fragment length polymorphism (rflp) patterns and in the sequences of their nuclear ribosomal internal transcribed spacer (its) regions. rv 26678 is a genetically typical a. benhamiae isolate, while kmu4169, though morphologically indistinguishable from a. benhamiae, is an isolate with a deviating its se ... | 2004 | 15283236 |
| the first isolation in japan of trichophyton mentagrophytes var. erinacei causing tinea manuum. | | 2005 | 16135148 |
| inhibition of the growth in vitro of trichophyton mentagrophytes, trichophyton erinacei and microsporum persicolor by miconazole and chlorhexidine. | an agar dilution technique was used to assess the minimum inhibitory concentrations (mics) of miconazole, chlorhexidine and a 1:1 combination of both agents for 9 isolates of trichophyton mentagrophytes, 9 isolates of trichophyton erinacei and 5 isolates of microsporum persicolor. mics of chlorhexidine did not vary significantly between the three dermatophyte species tested, but the mics of miconazole alone and in combination with chlorhexidine for t. erinacei were significantly greater that tho ... | 2005 | 16238813 |
| [from hedgehogs to men. zoophilic dermatophytosis caused by trichophyton erinacei in eight patients]. | the hedgehog is an in germany previously unrecognized source of human ringworm. eight hedgehog caretakers from göttingen and the surrounding area developed dermatophytosis caused by trichophyton erinacei. four patients who handled the animals without gloves developed lesions on the hands that were more in keeping with hand eczema, leading to a delay in diagnosis. the other caretakers who wore gloves presented with typical ringworm on the arms, the big toe, the back, the abdomen, and the thighs. ... | 2007 | 16523278 |
| a case of tinea corporis caused by arthroderma benhamiae (teleomorph of tinea mentagrophytes) in a pet shop employee. | we describe herein a case of tinea corporis caused by arthroderma benhamiae that presented with atypical clinical symptoms. we suggest that this infection has already spread widely in japan. | 2006 | 16781312 |
| case of tinea capitis caused by trichophyton mentagrophytes (molecular type arthroderma benhamiae): prevalence of a new zoonotic fungal infection in japan. | | 2006 | 16848828 |
| cytokine secretion profiles of human keratinocytes during trichophyton tonsurans and arthroderma benhamiae infections. | dermatophytes cause intractable superficial infections in humans. arthroderma benhamiae, a zoophilic dermatophyte, triggers severe inflammatory responses in humans, while trichophyton tonsurans, an anthropophilic dermatophyte, triggers minimal ones. cytokines and other factors derived from keratinocytes play important roles in inflammatory and immune responses in the skin. the authors performed an in vitro investigation to determine the human keratinocyte cytokine profiles during dermatophyte in ... | 2006 | 16914646 |
| tinea incognito in italy: a 15-year survey. | tinea incognito or steroid modified tinea is a dermatophytic infection in which topical or systemic steroids, administered as a result of dermatological misdiagnosis or preexisting pathologies, have modified the clinical appearance of the fungal infection, transforming the typical ringworm and mimicking other skin diseases. this is a retrospective study of the agents, clinical aspects, sources of infection of 200 cases (98 males, 102 females, mean age 42 years) of tinea incognito, observed in si ... | 2006 | 16922789 |
| rapid detection of arthroderma vanbreuseghemii in rabbit skin specimens by pcr-rflp. | three commercial rabbit farms independently reported suspected dermatophyte infections during 2004. cultures confirmed that the infection was caused by the zoophilic tricophyton mentagrophytes, while mating studies and sequencing of the internal transcribed spacer (its)1/4 polymerase chain reaction products, directly amplified from skin lesions and from pure culture isolates, established its arthroderma vanbreuseghemii lineage. subsequently, the corresponding ddei restriction profiles of the its ... | 2006 | 16961817 |
| sulphite efflux pumps in aspergillus fumigatus and dermatophytes. | dermatophytes and other filamentous fungi excrete sulphite as a reducing agent during keratin degradation. in the presence of sulphite, cystine in keratin is directly cleaved to cysteine and s-sulphocysteine, and thereby, reduced proteins become accessible to hydrolysis by a variety of secreted endo- and exoproteases. a gene encoding a sulphite transporter in aspergillus fumigatus (afussu1), and orthologues in the dermatophytes trichophyton rubrum and arthroderma benhamiae (trussu1 and abessu1, ... | 2007 | 17322211 |
| identification of dermatophyte species causing onychomycosis and tinea pedis by maldi-tof mass spectrometry. | identification of dermatophytes is currently performed based on morphological criteria and is increasingly supported by genomic sequence comparison. the present study evaluates an alternative based on the analysis of clinical fungal isolates by mass spectrometry. samples originating from skin and nail were characterized morphologically and by sequencing the internal transcribed spacer 1 (its1), its2 and the 5.8s rdna regions of the rdna clusters. in a blind comparative study, samples were analyz ... | 2008 | 17979969 |
| genetic and phenotypic variations among f1 progenies of arthroderma benhamiae. | the genotypes and phenotypes of 77 isolates derived from ascospores produced from two genetically different arthroderma benhamiae were studied. specifically, mitochondrial dna (mtdna) type, nuclear dna (ndna) type, mating type, colony texture, growth rate, urease activity, red pigmentation and hair perforation were examined. the ndna types based on the restriction fragment length polymorphism (rflp) in the internal transcribed spacer (its) region of ribosomal rna (rrna) genes and mating types we ... | 2008 | 18451591 |
| a new genotype of arthroderma benhamiae. | nucleotide sequence analysis of chitin synthase 1 (chs1) indicated 90% sequence similarities among human and animal isolates of arthroderma benhamiae. in particular, greater than 99% similarity was noted in the nucleotide sequence among americano-european race isolates, african race isolates, and five isolates from four-toed hedgehogs (atelerix albiventris). the phylogenetic analysis indicated that the five isolates from hedgehogs were included in the same cluster and distinct from the americano ... | 2008 | 18608884 |
| an intrafamilial transmission of arthroderma benhamiae in canadian porcupines (erethizon dorsatum) in a japanese zoo. | an intra-familial transmission of arthroderma benhamiae in canadian porcupines (erethizon dorsatum) housed in a japanese zoo was studied. the family consisted of an adult couple and two offspring (a male and a female). the porcupettes, born in japan, showed severe hair loss while the parent animals, imported from the usa. (male) and canada (female), showed mild symptoms or were asymptomatic. morphologically identical tricophyton spp. isolates were recovered within seven days from quills of all a ... | 2008 | 18608939 |
| a case of tinea manuum caused by trichophyton mentagrophytes var. erinacei: the first isolation in korea. | hedgehogs have recently become popular exotic pets in korea. several diseases may be acquired from these animals including dermatophytosis, salmonella infections, contact urticaria and possibly mycobacterium infections. we describe here a 15-year-old girl who developed tinea manuum after keeping a hedgehog for 4 months. diagnosis was confirmed by histopathologic and mycological examination. the causative agent was identified as trichophyton mentagrophytes var. erinacei, a zoophilic dermatophyte. | 2009 | 18643919 |
| pets as the main source of two zoonotic species of the trichophyton mentagrophytes complex in switzerland, arthroderma vanbreuseghemii and arthroderma benhamiae. | in cases of highly inflammatory dermatophytosis in humans, it is important to identify the possible source of animal transmission in order to prevent recurrence, family outbreaks or rapidly progressing epidemics. a survey of dermatophytes in pets during a 14-month period in switzerland revealed, in addition to microsporum canis, two different species of the trichophyton mentagrophytes complex, arthroderma benhamiae and arthroderma vanbreuseghemii, all causing inflammatory dermatophytoses. arthro ... | 2009 | 18699813 |
| different genes can result in different phylogenetic relationships in trichophyton species. | to determine the relationships among trichophyton species we constructed three phylogenies, based on the nucleotide sequences of the actin, rrna and dna topoisomerase ii genes. these phylogenies showed several conflicting branch points. for example, strains of t. verrucosum,t. concentricum and t. mentagrophytes var. erinacei were mingled with strains of arthroderma benhamiae and could not be separated into their own phylogenic groups. in addition, strains of a. vanbreuseghemii, t. tonsurans, t. ... | 2008 | 19001759 |
| hedgehog ringworm in humans and a dog. | we report 3 related cases of human dermatophytosis and 1 dog dermatophytosis likely caused by contact with a european hedgehog. trichophyton erinacei was isolated from stratum corneum samples. this type of zoophilic dermatophytosis is rare in south-east belgium and probably in the rest of the country as well. | 2008 | 19186564 |
| widespread erosive tinea corporis by arthroderma benhamiae in a renal transplant recipient: case report. | superficial fungal infections are expected to be more prevalent in renal transplant recipients because of graft-preserving immunosuppressive therapy. here we report the case of a 45-year-old patient with widespread erosive tinea corporis transmitted by domestic animals. sequencing of the internal transcribed spacer region identified arthroderma benhamiae (teleomorph of trichophyton mentagrophytes) in the patient, her husband and her domestic animals. a combination therapy with systemic terbinafi ... | 2010 | 19558430 |
| evaluation of a single-tube real-time pcr for detection and identification of 11 dermatophyte species in clinical material. | we developed a dermatophyte-specific single-tube real-time pcr assay based on internal transcribed sequences. this assay allows the rapid detection and identification of 11 clinically relevant species within the three dermatophyte genera trichophyton, microsporum and epidermophyton in nail, skin and hair samples within a few hours. analysis of 145 clinical samples (107 nail, 36 skin scale, and two hair) by both real-time pcr and a pcr-reverse line blot (pcr-rlb) assay described earlier revealed ... | 2010 | 19624518 |
| differential gene expression in the pathogenic dermatophyte arthroderma benhamiae in vitro versus during infection. | although dermatophytes are the most common agents of superficial mycoses in humans and animals, the molecular basis of the pathogenicity of these fungi is largely unknown. in vitro digestion of keratin by dermatophytes is associated with the secretion of multiple proteases, which are assumed to be responsible for their particular specialization to colonize and degrade keratinized host structures during infection. to investigate the role of individual secreted proteases in dermatophytosis, a guin ... | 2010 | 19942661 |
| trichophyton erinacei infection from a hedgehog: a case report from taiwan. | trichophyton erinacei is a fungus affecting hedgehogs. as these animals have become popular as exotic pets, human infections with this organism have been documented in many countries. in taiwan, a 36-year-old woman developed tinea lesions at multiple sites after carrying a sick hedgehog. the animal subsequently lost its quills and died. on culture of the patient's skin scrapings, the pathogen was identified mycologically as trichophyton erinacei, which was confirmed by sequencing of the internal ... | 2010 | 20574717 |
| [role of cytokine secretion of human keratinocytes in dermatophytosis]. | the clinical presentation of dermatophytosis depends on species of the infecting fungus. the infections caused by the anthropophilic species tend to be chronic and intractable, and the resultant inflammation is minimal. on the other hand, the infections caused by the geophilic and zoophilic species tend to be self-healing, and the resultant inflammation is more severe. we investigated the role of cytokine secretion of human keratinocyte during dermatophyte infections: arthroderma benhamiae, a zo ... | 2010 | 20716850 |
| arthroderma benhamiae (the teleomorph of trichophyton mentagrophytes) mating type-specific genes. | this study first report to identify the mating type (-)-specific gene of alpha-box and the mating type (+)-specific gene of the high-mobility-group (hmg) dna-binding domain in zoophilic dermatophytes of arthroderma benhamiae in an effort to understand the epidemiological characteristics of trichophyton mentagrophytes. the sequence of the alpha-box gene (1,387 bp) was found to contain two exons, from 184 to 475 bp and from 525 to 1,387 bp, coding a protein of 384 amino acids, beginning with a put ... | 2010 | 21136296 |
| comparative and functional genomics provide insights into the pathogenicity of dermatophytic fungi. | abstract: background: millions of humans and animals suffer from superficial infections caused by a group of highly specialized filamentous fungi, the dermatophytes, which exclusively infect keratinized host structures. to provide broad insights into the molecular basis of the pathogenicity-associated traits, we report the first genome sequences of two closely phylogenetically related dermatophytes, arthroderma benhamiae and trichophyton verrucosum, both of which induce highly inflammatory infec ... | 2011 | 21247460 |
| targeted gene deletion and in vivo analysis of putative virulence gene function in the pathogenic dermatophyte arthroderma benhamiae. | dermatophytes cause the majority of superficial mycoses in humans and animals. however, little is known about the pathogenicity of this specialized group of filamentous fungi, for which molecular research has been limited thus far. during experimental infection of guinea pigs by the human pathogenic dermatophyte arthroderma benhamiae, we recently detected the activation of the fungal gene encoding malate synthase acue, a key enzyme of the glyoxylate cycle. by the establishment of the first genet ... | 2011 | 21478433 |
| an unusual clinical presentation of tinea faciei caused by trichophyton mentagrophytes var. erinacei. | trichophyton mentagrophytes var. erinacei, the natural host of which is the hedgehog, has been found to cause highly inflammatory and pruritic eruptions, including tinea manuum, tinea corporis, nail infection, kerion, scalp infection, and tinea barbae. to our knowledge, however, no reports have been made of tinea faciei caused by trichophyton mentagrophytes var. erinacei in the english language literature. we provide here the case of tinea faciei caused by trichophyton mentagrophytes var. erinac ... | 2011 | 21504458 |
| trichophyton bullosum: a new zoonotic dermatophyte species. | we report the first human case of dermatophytosis caused by trichophyton bullosum in a 21-year-old male who had a skin lesion located on his forearm. the dermatophyte was isolated in culture and further identified by sequence analysis of internal transcripted spacer regions. the species t. bullosum is a zoophilic dermatophyte rarely isolated from the coat of horses in africa and asia. in the present case, it was probably transmitted by contact with an infected donkey in a rural area in france. a ... | 2011 | 21905949 |
| identification of novel secreted proteases during extracellular proteolysis by dermatophytes at acidic ph. | the dermatophytes are a group of closely related fungi which are responsible for the great majority of superficial mycoses in humans and animals. among various potential virulence factors, their secreted proteolytic activity attracts a lot of attention. most dermatophyte-secreted proteases which have so far been isolated in vitro are neutral or alkaline enzymes. however, inspection of the recently decoded dermatophyte genomes revealed many other hypothetical secreted proteases, in particular aci ... | 2011 | 21919205 |
| molecular characterization of strains of the trichophyton verrucosum complex from tunisia. | trichophyton verrucosum is the most frequent etiologic agent of cattle dermatophytosis. throughout the world, it was the second most common agent of zoophilic dermatophytes in human. the aim of our study was to evaluate the efficacy of the pcr- rflp and pcr-sequencing methods for the identification and differentiation of t. verrucosum strains.thirty-six clinical strains identified by morphological characteristics as t. verrucosum were isolated from patients referred to parasitology-mycology labo ... | 2016 | 27364650 |
| which fungus originally was trichophyton mentagrophytes? historical review and illustration by a clinical case. | several dermatophytes producing numerous pyriform or round microconidia were called trichophyton mentagrophytes. among these dermatophytes are the teleomorph species arthroderma benhamiae, arthroderma vanbreuseghemii and arthroderma simii, and other species such as trichophyton interdigitale, trichophyton erinacei and trichophyton quinckeanum for which only the anamorph is known. confusion exists about which fungus should be really called t. mentagrophytes and about the rational use of this name ... | 2015 | 25912796 |
| frequent isolation of arthroderma benhamiae from dogs with dermatophytosis. | molecular analysis methods have led to many changes in the taxonomy of dermatophyte species. | 2014 | 24267472 |
| genome mining reveals the presence of a conserved gene cluster for the biosynthesis of ergot alkaloid precursors in the fungal family arthrodermataceae. | genome sequence analysis of different fungi of the family arthrodermataceae revealed the presence of a gene cluster consisting of five genes with high sequence similarity to those involved in the early common steps of ergot alkaloid biosynthesis in aspergillus fumigatus and claviceps purpurea. to provide evidence that this cluster is involved in ergot alkaloid biosynthesis, the gene arb_04646 of the fungus arthroderma benhamiae was cloned into pqe60 and expressed in escherichia coli. enzyme assa ... | 2012 | 22403186 |