| aflatoxin-like compounds produced by dermatophytes. | using the method of thin-layer chromatography there were investigated the chloroform extracts of 30 dermatophyte mycelia. it was found the presence of aflatoxin-like compounds in six mycelium extracts only, which chromatograms showed the equal rf and the colour of the strains to the strains to the standard aflatoxin extract of bruished peanuts grain rossetti. those six mycelia were: epidermophyton floccosum, nannizzia fulva, n. persicolor, arthroderma gloriae, trichophyton concentricum and t. ga ... | 1975 | 1170494 |
| circulating antigens and antibodies in human and mouse dermatophytosis: use of monoclonal antibody reactive to phosphorylcholine-like epitopes. | the presence of circulating antibodies in the sera of patients infected with either trichophyton concentricum or trichophyton rubrum, and in the sera of balb/c mice chronically infected with trichophyton quinckeanum, was determined by elisa. high levels of antibody to dermatophyte cytoplasmic antigens were detected both in infected humans and in mice. partial inhibition of this reaction was observed by pretreatment of the sera with the hapten phosphorylcholine (pc). moreover, antibodies were sho ... | 1987 | 2452230 |
| endemic tinea imbricata--a study on goodenough island, papua new guinea. | tinea imbricata was studied in 102 patients on goodenough island, papua new guinea. trichophyton concentricum was isolated from 98 skin samples. seven different clinical patterns of infection were distinguished: concentric, lamellar, lichenified , plaque-like, annular, palmar/plantar, onychomycosis. hypopigmentation was a prominent feature of the infection. the disease was most common in male children or adult women. relapse after therapy, including oral griseofulvin, in patients remaining in th ... | 1984 | 6464115 |
| antibody responses in tinea imbricata: the role of immunoglobulin e. | patients with tinea imbricata were found to have raised specific immunoglobulin levels of all classes to trichophyton concentricum antigen using an enzyme linked immunosorbent assay (elisa). both total and specific ige class antibodies were raised and this correlated with immediate type hypersensitivity seen on skin testing as well as the duration of infection. the significance of these findings is discussed in the light of the association between chronic fungal infections and ige. | 1984 | 6506154 |
| immune responses of patients with tinea imbricata. | tinea imbricata is a chronic dermatophyte infection caused by trichophyton concentricum affecting large areas of the skin surface. spontaneous improvement is unusual and relapse after apparently successful treatment is common. in this study in papua new guinea it was found that a high proportion of infected patients had immediate-type hypersensitivity (52%) or negative responses (46%) to intradermal trichophytin. the majority of patients failed to develop delayed-type hypersensitivity on skin te ... | 1983 | 6849824 |
| erythema gyratum repens-like psoriasis. | a 28-year-old man was admitted to our department for investigation in 1992. he presented with a red, scaly, centrifugally spreading eruption, which had appeared in 1990, beginning on the neck and thorax, and later extending to the trunk and limbs. the cutaneous lesions, located mainly on the trunk and proximal upper limbs, were arranged in rings, with a slightly raised prominent scaling edge (fig. 1a). the characteristic feature was the presence of rings or waves within already existing rings, w ... | 2000 | 11044195 |
| dermatophytes isolated from patients in university hospital, kuala lumpur, malaysia. | a total of 576 dermatophytes were isolated from patients with a variety of skin infections from january 1993 to may 2000. ten species of dermatophytes were identified: epidermophyton floccosum (0.7%), microsporum audouinii (1.1%), m. canis (3.1%), m. gypseum (0.3%), trichophyton concentricum (3.5%), t. equinum (0.2%), t. mentagrophytes (36.1%), t. rubrum (53.8%), t. verrucosum (0.2) and t. violaceum (1.0%). the body sites most frequently affected by dermatophytes were the buttocks, nails and tru ... | 2002 | 12650596 |
| tinea imbricata in a european: double infection with trichophyton concentricum and trichophyton rubrum. | | 1952 | 12987562 |
| study of prophylactic action of griseofulvin--human experimental infection with trichophyton concentricum. | | 1964 | 14115870 |
| tinea imbricata or tokelau. | tinea imbricata (ti) or tokelau is a superficial mycosis caused by trichophyton concentricum, an anthropophilic dermatophyte. it is endemic in some islands of the south pacific (polynesia), south-east asia, central and south america, and mexico, and is most often seen in individuals living in primitive and isolated conditions. the skin lesions are characteristically concentric and lamellar (imbricata: in latin, tiled) plaques of scale. predisposing conditions include humidity, inheritance, and i ... | 2004 | 15230889 |
| tinea imbricata: autosomal dominant pattern of susceptibility in a polygamous indigenous family of the nahuatl zone in mexico. | we report on 9 confirmed cases of tinea imbricata (tokelau, infection due to trichophyton concentricum) out of 16 family members. they had a common mother with three different fathers. the genetic analysis of the family suggests an autosomal dominant pattern of susceptibility. most cases (8/9) were presented as concentric and lamellar forms. one patient also had onychomycosis due to t. concentricum. only two out of nine cases had a positive response to trichophytin. | 2004 | 15310331 |
| trichophyton tonsurans infection manifesting as multiple concentric annular erythemas. | we report a case of dermatophytosis in a judo wrestler caused by trichophyton tonsurans (t. tonsurans) with clinical features that mimicked the concentric rings of tinea imbricata. tinea imbricata is a unique dermatophytosis caused by trichophyton concentricum (t. concentricum), observed endemically in subtropical to torrid zones and characterized by impressive concentric rings. we found three similar cases of the dermatophytosis in the literature that were reported as tinea pseudoimbricata or t ... | 2005 | 16335872 |
| tinea imbricata. | tinea imbricata (ti) is a chronic superficial mycosis caused exclusively by trichophyton concentricum. characteristically, the lesions are composed of multiple concentric annular plaques that have thick adherent peripheral rims of scale. a brief review of this infection is presented. | 2009 | 19445309 |
| tinea imbricata in the americas. | the aim is to provide an overview on tinea imbricata, or tokelau, a superficial mycosis caused by trichophyton concentricum, a strictly anthropophilic dermatophyte with a well-defined geographic distribution and predisposing factors that include genetic, racial and immunologic susceptibility patterns and a specific environment. | 2011 | 21169831 |
| production, characterization, and antimicrobial activity of mycocin produced by debaryomyces hansenii dsmz70238. | the present study was conducted to estimate the antimicrobial activity and the potential biological control of the killer toxin produced by d. hansenii dsmz70238 against several pathogenic microorganisms. in this study, the effects of nacl, ph, and temperature, killer toxin production, and antimicrobial activity were studied. the results showed that the optimum inhibitory effect of killer toxin was at 8% nacl, and the diameters of clear zones were 20, 22, 22, 21, 14, and 13 mm for staphylococcus ... | 2017 | 28757872 |
| [tinea capitis]. | tinea capitis is a widespread scalp infection in children caused by dermatophytes. in fact, it is the most common cutaneous mycosis in children but is uncommon in adults. the disease has been major public health concern for decades. some factors implicated in infection include poor personal hygiene, crowded living conditions, and low socioeconomic status. it can be caused by any pathogenic dermatophyte except for epidermophyton floccosum and trichophyton concentricum. trichophyton rubrum, the mo ... | 2008 | 18346430 |
| isolation of trichophyton concentricum from chronic cutaneous lesions in patients from the solomon islands. | tinea imbricata, also known as 'tokelau', is an uncommon superficial mycosis caused by the anthropophilic dermatophyte trichophyton concentricum. cutaneous lesions appear characteristically as scaly and concentric rings that may cover all parts of the body. often acquired in childhood, tinea imbricata is a chronic disease and lichenification is extremely common due to pruritus. the dermatophytosis mainly occurs in the south pacific, but also in some regions of southeast asia and central or south ... | 2008 | 18295290 |
| the effect of sodium chloride on the growth and morphology of dermatophytes and some other keratolytic fungi. | a study of the influence of various concentrations of nac1 on 21 species of dermatophytes and other keratolytic fungi was made. based on the sensitivity of the species to various concentrations of nac1, it was possible to divide them into five groups. microsporum ferrugineum and trichophyton concentricum and t. tonsurans were the most sensitive to nac1 and were inhibited by 5%. the greatest number of species were inhibited by 12% nac1. the fungi most tolerant to nac1 were m. cookei and m. nanum, ... | 1975 | 1148934 |
| autosomal recessive inheritance of susceptibility to tinea imbricata. | familial distribution of chronic tinea imbricata in an untreated melanesian population was consistent with a genetic predisposition to this disease. the pattern suggested that susceptibility to chronic trichophyton concentricum infection is recessively inherited and controlled by genes at a single autosomal locus. in married couples there was no concordance of the disease above that expected by chance and the observed segregation of tinea imbricata accorded well with that predicted by the geneti ... | 1977 | 63655 |
| tinea imbricata in an italian child and review of the literature. | tinea imbricata is a chronic superficial mycosis caused by trichophyton concentricum. it is characterized by widespread, annular, concentric, squamous lesions. tinea imbricata is endemic in three geographical areas: southwest pacific, southeast asia, and central and south america. tinea imbricata in travelers returning from endemic areas is exceptionally rare. we report a case of tinea imbricata in an italian child who acquired the infection during a trip to solomon islands. three cultures were ... | 2015 | 26314408 |
| trichophyton concentricum in skin lesions in children from the salomon islands. | aim of the paper was to report cases of tinea imbricata, a mycosis caused by the anthropophilic dermatophyte trichophyton concentricum, observed in 2012 in guadalcanal, the largest of the salomon islands. | 2015 | 26333549 |
| early western observations of cutaneous trichophyton concentricum infection in the pacific and a history of its vernacular name, tokelau. | | 2016 | 25827244 |
| tinea cruris and tinea corporis masquerading as tinea indecisiva: case report and review of the literature. | tinea indecisiva is characterized by concentric scaly rings simulating tinea imbricata but caused by dermatophytes other than trichophyton concentricum. | 2015 | 25775632 |
| tinea cruris and tinea corporis masquerading as tinea indecisiva: case report and review of the literature. | tinea indecisiva is characterized by concentric scaly rings simulating tinea imbricata but caused by dermatophytes other than trichophyton concentricum. | 2014 | 25277164 |
| dermatophyte and non dermatophyte fungi in riyadh city, saudi arabia. | dermatophytes are a scientific label for a group of three genera (microsporum, epidermophyton and trichophyton) of fungus that causes skin disease in animals and humans. conventional methods for identification of these fungi are rapid and simple but are not accurate comparing to molecular methods. | 2015 | 26288566 |
| Identification of rare macroconidia-producing dermatophytic fungi by real-time PCR. | To understand the pathogenicity and clinical significance of dermatophytes (also known as ringworms), the correct identification of these molds is essential. However, in routine practice they are notoriously difficult to classify and identify. The morphology of macroconidia, which are abundantly produced under suitable in vitro conditions, have provided useful criteria for the identification of many of the dermatophytes. However, several of them, including Microsporum audouinii, M. ferrugineum, ... | 2011 | 21954954 |
| heat resistance of dermatophyte's conidiospores from athletes kits stored in nigerian university sport's center. | the incidence and heat resistance of conidiospores produced by dermatophytes isolated from athlete's kits (canvasses, stockings and spike shoes) stored in nigerian university sport's centre were investigated. epidermophyton floccosum, microsporum oudouinii, microsporum canis, trichophyton concentricum, trichophyton mentagrophytes and trichophyton rubrum were isolated and their incidence on the athlete's kits varied with the species and type of kits. among the isolates t. mentagrophytes, t. rubru ... | 2009 | 19388558 |
| borelli's lactritmel agar induces conidiation in rare-macroconidia producing dermatophytic fungi. | macroconidia are among the most important indicators used to identify dermatophytic fungi, but several do not usually sporulate and/or produce macroconidia on sabouraud glucose agar. specifically, microsporum audouinii, m. ferrugineum, trichophyton concentricum, t. schoenleinii, t. verrucosum, and t. violaceum (including t. soudanense and t. yaoundei) rarely form macroconidia and, therefore, cannot be easily identified. in this study, we investigated the production of macroconidia on nine common ... | 2012 | 22563856 |
| tinea capitis in the form of concentric rings in an hiv positive adult on antiretroviral treatment. | dermatophyte infection may present in the form of concentric rings caused by trichophyton concentricum, known as tinea imbricata. in immunosuppressed patients, there are reports of lesions in the form of concentric rings caused by dermatophytes other than trichophyton concentricum too, mostly by trichophyton tonsurans, known as tinea indesiciva or tinea pseudoimbricata. we report a case of tinea capitis in a hiv-positive adult woman on antiretroviral therapy, who presented with concentric rings ... | 2012 | 22837564 |
| [tropical and travel-related dermatomycoses: part 1: dermatophytoses]. | today, tropical and travel-related dermatomycoses must be increasingly anticipated to present in dermatological offices and clinics. skin infections due to dermatophytes or other fungi may occur after a journey in countries with a high prevalence for the respective causative fungal pathogen, e.g., tinea corporis due to trichophyton soudanense. otherwise, more frequently, single infections and even localized outbreaks due to "exotic" or "imported" pathogens of dermatophytoses occur. these epidemi ... | 2015 | 25868571 |