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K.e.e. Ibrahim - One of the best experts on this subject based on the ideXlab platform.
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The Effect of 9a‐FIuoroprednisolone on the Pathogenicity of Microsporum canis and Trichophyton Violaceum to Horses/Die Wirkung von 9a‐Fluorprednisolon auf die Pathogenität von Microsporum canis und Trichophyton Violaceum für Pferde
Mycoses, 2009Co-Authors: M.t. Abu‐samra, K.e.e. IbrahimAbstract:Summary: Horses were successfully infected with human isolates of Microsporum canis and Trichophyton Violaceum. The lesions produced by both dermatophytes followed a similar course of development Annular lesions of ringworm, reminiscent of those observed in natural infections, were produced by M. canis, while those produced by T. Violaceum had no specific pattern. The lesions produced by M. canis developed earlier and were slightly more severe than those produced by T. Violaceum. Premedication of the horses with 9a-fluoroprednisolone increased the severity of the experimentally induced lesions. Skin sections showed that a larger number of hair follicles were parasitized by the dermatophytes with a severer degree of invasion in horses premedicated with 9a-fluoroprednisolone than those which had not received this steroid. Zusammenfassung: Pferde wurden erfolgreich mit vom Menschen isolierten Referenzstammen von Microsporum canis und Trichophyton Violaceum infiziert. Die Lasionen, die durch beide Dermatophyten gesetzt wurden, entwickelten sich in ahnlicher Weise. Ringformige Tinea-Lasionen wurden durch M. canis verursacht, die an solche bei naturlichen Infektionen erinnerten, wahrend die durch T. Violaceum verursachten kein besonderes Muster zeigten. Die durch M. canis bedingten Lasionen entwickelten sich fruher und waren etwas schwerer als die von T. Violaceum verursachten. Die Vorbehandlung der Pferde mit 9a-Fluorprednisolon erhohte den Schweregrad der experimented gesetzten Infektherde. Hautschnitte zeigten, das eine grosere Zahl von Haarfollikeln in starkerem Ausmas von den Dermatophyten bei den 9a-Fluorprednisolon-behandelten Pferden im Vergleich zu den unbehandelten befallen war.
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the effect of 9a fiuoroprednisolone on the pathogenicity of microsporum canis and Trichophyton Violaceum to horses die wirkung von 9a fluorprednisolon auf die pathogenitat von microsporum canis und Trichophyton Violaceum fur pferde
Mycoses, 2009Co-Authors: M T Abusamra, K.e.e. IbrahimAbstract:Summary: Horses were successfully infected with human isolates of Microsporum canis and Trichophyton Violaceum. The lesions produced by both dermatophytes followed a similar course of development Annular lesions of ringworm, reminiscent of those observed in natural infections, were produced by M. canis, while those produced by T. Violaceum had no specific pattern. The lesions produced by M. canis developed earlier and were slightly more severe than those produced by T. Violaceum. Premedication of the horses with 9a-fluoroprednisolone increased the severity of the experimentally induced lesions. Skin sections showed that a larger number of hair follicles were parasitized by the dermatophytes with a severer degree of invasion in horses premedicated with 9a-fluoroprednisolone than those which had not received this steroid. Zusammenfassung: Pferde wurden erfolgreich mit vom Menschen isolierten Referenzstammen von Microsporum canis und Trichophyton Violaceum infiziert. Die Lasionen, die durch beide Dermatophyten gesetzt wurden, entwickelten sich in ahnlicher Weise. Ringformige Tinea-Lasionen wurden durch M. canis verursacht, die an solche bei naturlichen Infektionen erinnerten, wahrend die durch T. Violaceum verursachten kein besonderes Muster zeigten. Die durch M. canis bedingten Lasionen entwickelten sich fruher und waren etwas schwerer als die von T. Violaceum verursachten. Die Vorbehandlung der Pferde mit 9a-Fluorprednisolon erhohte den Schweregrad der experimented gesetzten Infektherde. Hautschnitte zeigten, das eine grosere Zahl von Haarfollikeln in starkerem Ausmas von den Dermatophyten bei den 9a-Fluorprednisolon-behandelten Pferden im Vergleich zu den unbehandelten befallen war.
Michele Fimiani - One of the best experts on this subject based on the ideXlab platform.
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thirty six cases of epidemic infections due to Trichophyton Violaceum in siena italy
Mycoses, 2014Co-Authors: Clara Romano, Luca Feci, Michele FimianiAbstract:Summary Trichophyton Violaceum is an anthropophilous dermatophyte endemic to parts of Africa and Asia, sporadic in Europe. It is an emerging pathogen in Italy due to immigration. We report 36 cases of infections due to T. Violaceum, diagnosed in the last 5 years by mycological examination. The source of contagion was 13 children adopted from orphanages.
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Thirty‐six cases of epidemic infections due to Trichophyton Violaceum in Siena, Italy
Mycoses, 2013Co-Authors: Clara Romano, Luca Feci, Michele FimianiAbstract:Summary Trichophyton Violaceum is an anthropophilous dermatophyte endemic to parts of Africa and Asia, sporadic in Europe. It is an emerging pathogen in Italy due to immigration. We report 36 cases of infections due to T. Violaceum, diagnosed in the last 5 years by mycological examination. The source of contagion was 13 children adopted from orphanages.
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Tinea corporis purpurica and onychomycosis caused by Trichophyton Violaceum.
Mycoses, 2011Co-Authors: Clara Romano, Rosa Maria Strangi, Luca Feci, Lara Massai, Clelia Miracco, Michele FimianiAbstract:Summary We report two cases of tinea corporis purpurica of the legs, presumably caused by self-inoculation of the mycete from the toenails, in two elderly women (80 and 78 years). Trichophyton Violaceum was isolated from the skin and nails. Histological examination of a biopsy specimen from the leg lesions confirmed the diagnosis. The source of infection was an Ethiopian carer who had tinea capitis in the first case, and was undiagnosed in the second patient. Cases of purpuric variants of tinea corporis are rare and this is the first report of probable self-inoculation of T. Violaceum from onychomycosis.
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A case of bullous tinea pedis with dermatophytid reaction caused by Trichophyton Violaceum
Mycoses, 2006Co-Authors: C. Romano, P Rubegni, A. Ghilardi, Michele FimianiAbstract:Summary The authors report a case of bullous tinea pedis caused by Trichophyton Violaceum with dermatophytid reaction in a 26-year-old woman who had been in Africa. Diagnosis was based on mycological examination (direct microscope observation and culture). Recovery was achieved after systemic antimycotic therapy with itraconazole and topical imidazole for a month.
Shuwen Deng - One of the best experts on this subject based on the ideXlab platform.
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In vitro antifungal susceptibility of Trichophyton Violaceum isolated from tinea capitis patients
The Journal of antimicrobial chemotherapy, 2014Co-Authors: Shuwen Deng, Ping Zhan, G.s. De Hoog, Paul E. Verweij, Jan Zoll, Macit Ilkit, F. Morsali, Parida Abliz, Xiaodong Wang, L. YangAbstract:OBJECTIVES: Trichophyton Violaceum is an anthropophilic dermatophyte that is endemic to parts of Africa and Asia and is sporadic in Europe. T. Violaceum mainly causes tinea capitis in both children and adolescents. Although the infections caused by T. Violaceum are of considerable medical importance, its antifungal susceptibility profile remains poorly examined. METHODS: In this study, we tested the in vitro antifungal susceptibility of a set of clinical T. Violaceum isolates obtained from tinea capitis patients, using the CLSI broth microdilution method. We tested eight antifungals and used isolates collected from Western China (21), Eastern China (12), the Middle East (1), Europe (20), South Africa (7) and Canada (1). RESULTS: The geometric means of the MICs of the antifungals for all isolates were as follows (in increasing order): posaconazole, 0.021 mg/L; terbinafine, 0.023 mg/L; voriconazole, 0.062 mg/L; amphotericin B, 0.20 mg/L; itraconazole, 0.34 mg/L; caspofungin, 0.56 mg/L; fluconazole, 4.23 mg/L; and flucytosine, 8.46 mg/L. No statistically significant differences in the susceptibility profiles of T. Violaceum were detected within the geographical regions tested. CONCLUSIONS: Posaconazole, terbinafine and voriconazole were shown to be the most potent antifungal agents against T. Violaceum isolates obtained from tinea capitis patients worldwide. These results might help clinicians in developing appropriate therapies that have a high probability of successfully treating tinea capitis due to T. Violaceum.
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changes in frequency of agents of tinea capitis in school children from western china suggest slow migration rates in dermatophytes
Medical Mycology, 2008Co-Authors: Shuwen Deng, G.s. De Hoog, Glenn Bulmer, R C Summerbell, Yvonne GraserAbstract:Tinea capitis is a common dermatophyte infection of the scalp of children in Western China, with the gray-patch from being the most prevalent. Twenty years ago, the most widespread etiologic agent was reported to be Trichophyton Violaceum, which was later succeeded by Microsporum ferrugineum and Trichophyton schoenleinii. In the framework of our recent study, 97 isolates were collected from patients with clinically suspected tinea capitis. Identification was performed by conventional methods and by sequencing the ribosomal DNA internal transcribed spacer region. In the case of T. Violaceum an additional microsatellite primer set (T1) was used. Five species (in order of frequency, Trichophyton Violaceum, T. schoenleinii, Microsporum ferrugineum, zoophilic strains of Arthroderma vanbreuseghemii, and Trichophyton tonsurans) were identified. Results of molecular and phenotypic ID of the same strains showed good correspondence. Comparison with earlier data showed that dermatophytes species in former rural soci...
Clara Romano - One of the best experts on this subject based on the ideXlab platform.
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thirty six cases of epidemic infections due to Trichophyton Violaceum in siena italy
Mycoses, 2014Co-Authors: Clara Romano, Luca Feci, Michele FimianiAbstract:Summary Trichophyton Violaceum is an anthropophilous dermatophyte endemic to parts of Africa and Asia, sporadic in Europe. It is an emerging pathogen in Italy due to immigration. We report 36 cases of infections due to T. Violaceum, diagnosed in the last 5 years by mycological examination. The source of contagion was 13 children adopted from orphanages.
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Thirty‐six cases of epidemic infections due to Trichophyton Violaceum in Siena, Italy
Mycoses, 2013Co-Authors: Clara Romano, Luca Feci, Michele FimianiAbstract:Summary Trichophyton Violaceum is an anthropophilous dermatophyte endemic to parts of Africa and Asia, sporadic in Europe. It is an emerging pathogen in Italy due to immigration. We report 36 cases of infections due to T. Violaceum, diagnosed in the last 5 years by mycological examination. The source of contagion was 13 children adopted from orphanages.
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Tinea corporis purpurica and onychomycosis caused by Trichophyton Violaceum.
Mycoses, 2011Co-Authors: Clara Romano, Rosa Maria Strangi, Luca Feci, Lara Massai, Clelia Miracco, Michele FimianiAbstract:Summary We report two cases of tinea corporis purpurica of the legs, presumably caused by self-inoculation of the mycete from the toenails, in two elderly women (80 and 78 years). Trichophyton Violaceum was isolated from the skin and nails. Histological examination of a biopsy specimen from the leg lesions confirmed the diagnosis. The source of infection was an Ethiopian carer who had tinea capitis in the first case, and was undiagnosed in the second patient. Cases of purpuric variants of tinea corporis are rare and this is the first report of probable self-inoculation of T. Violaceum from onychomycosis.
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Dermatophytosis due to Trichophyton Violaceum in Tuscany from 1985 to 1997.
Mycoses, 2000Co-Authors: Clara Romano, L. Massai, Elisa Margherita DifonzoAbstract:We describe 45 cases of dermatophytosis due to Trichophyton Violaceum diagnosed in Tuscany from 1985 to 1997. Diagnosis was based on direct microscope mycological examination and culture. Nine of the 45 patients were Italian, eight of whom were born and resident in Tuscany; the others were Africans who contracted the infection in their country of origin. The first case in a non-European was observed in 1985, but since 1991 isolation from foreigners has become more frequent. The increase in cases of infection by T. Violaceum in our region is certainly linked to immigration. The cases of epidermomycosis in Tuscans suggests that the fungus has already become autochthonous.
A. S. Thambiah - One of the best experts on this subject based on the ideXlab platform.
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Histological Study in Tinea Capitis: Histologische Untersuchungen bei Tinea capitis
Mycoses, 2009Co-Authors: A. Kamalam, A. S. ThambiahAbstract:Summary: Histological studies in 50 cases of tinea capitis caused mainly by Trichophyton Violaceum have shown three distinct varieties which correlated with their clinical types. Findings in the present and previous studies on tinea capitis correlate a higher incidence of the disease in noninflammatory types and a lower incidence in the inflammatory types. Existence of two different subspecies of T. Violaceum is surmised from the present study. Zusammenfassung: Die histologischen Untersuchungen an 50 Patienten mit Tinea capitis, vorwiegend hervorgerufen durch Trichophyton Violaceum, liesen drei deutlich abgrenzbare histologische Erscheinungsformen erkennen, die mit den entsprechenden klinischen Typen korrelierten. In dieser wie in fruheren Untersuchungen konnte weiter festgestellt werden, das der nicht-entzundliche Typ dieser Erkrankung haufiger vorkommt als die Formen mit starkerer Entzundung. Aus den vorgelegten Untersuchungen wird die Forderung abgeleitet, das innerhalb der Art Trichophyton Violaceum zwei verschiedene Unterarten mit unterschiedlicher Antigenitat existieren musten.
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Tinea capitis in South Indian Families: Tinea capitis in südindischen Familien
Mycoses, 2009Co-Authors: A. Kamalam, A. S. ThambiahAbstract:Summary: Intrafamilial incidence of tinea capitis in 26 families was studied in Madras and was found to vary from 3.6 % to 80.0%. Usually the incidence was higher in noninflammatory types caused by Trichophyton Violaceum infection than those with inflammatory lesions or kerion. Poor socioeconomic and hygienic background was found in most of the families studied. The commonest agent involved was T. Violaceum, in 68.6%. The other species were T. tonsurans (21.6 Vo), T. rubrum (6%) and T. simii (3.8%). Findings reveal that tinea capitis and or T. Violaceum infection are endemic in Madras, South India. Zusammenfassung: Das intrafamiliare Vorkommen von Tinea capitis wurde bei 26 Familien in Madras untersucht. Der intrafamiliare Befall betrug dabei zwischen 3,6 und 85,7%. Gewohnlich war der Befall innerhalb einer Familie bei den nicht entzundlichen Formen, wie sie durch Trichophyton Violaceum hervorgerufen werden, groser als bei den entzundlichen oder Kerion-Formen. Ein geringer sozio-okonomi-scher und hygienischer Standard wurde bei den meisten untersuchten Familien ge-funden. Der haufigste Erreger bei dieser Untersuchung war Trichophyton Violaceum mit 68,6%. Weitere Arten waren T. tonsurans (21,6%), T. rubrum (6%) und T. simii (3,8%). Die Befunde zeigen, das die Tinea capitis bzw. Trichophyton viola-ceum-Infektionen in Madras, Sudindien, endemisch sind.
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Tinea capitis in South Indian Families: Tinea capitis in südindischen Familien
Mycoses, 2009Co-Authors: A. Kamalam, A. S. ThambiahAbstract:Summary: Intrafamilial incidence of tinea capitis in 26 families was studied in Madras and was found to vary from 3.6 % to 80.0%. Usually the incidence was higher in noninflammatory types caused by Trichophyton Violaceum infection than those with inflammatory lesions or kerion. Poor socioeconomic and hygienic background was found in most of the families studied. The commonest agent involved was T. Violaceum, in 68.6%. The other species were T. tonsurans (21.6 Vo), T. rubrum (6%) and T. simii (3.8%). Findings reveal that tinea capitis and or T. Violaceum infection are endemic in Madras, South India. Zusammenfassung: Das intrafamiliare Vorkommen von Tinea capitis wurde bei 26 Familien in Madras untersucht. Der intrafamiliare Befall betrug dabei zwischen 3,6 und 85,7%. Gewohnlich war der Befall innerhalb einer Familie bei den nicht entzundlichen Formen, wie sie durch Trichophyton Violaceum hervorgerufen werden, groser als bei den entzundlichen oder Kerion-Formen. Ein geringer sozio-okonomi-scher und hygienischer Standard wurde bei den meisten untersuchten Familien ge-funden. Der haufigste Erreger bei dieser Untersuchung war Trichophyton Violaceum mit 68,6%. Weitere Arten waren T. tonsurans (21,6%), T. rubrum (6%) und T. simii (3,8%). Die Befunde zeigen, das die Tinea capitis bzw. Trichophyton viola-ceum-Infektionen in Madras, Sudindien, endemisch sind.
