Trichophyton Rubrum

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 10137 Experts worldwide ranked by ideXlab platform

A Oriani - One of the best experts on this subject based on the ideXlab platform.

  • case report widespread tinea corporis due to Trichophyton Rubrum
    Mycoses, 2002
    Co-Authors: A Gorani, A. Schiera, A Oriani
    Abstract:

    Summary.  We report the case of a 36-year-old man who presented large erythematous plaques involving the trunk, face and extremities, since one month. Some of these lesions had a psoriasis-like aspect, with abundant superficial scaling. Direct microscopic examination of scales removed from the plaques revealed numerous hyphae. Cultural examination lead to the identification of Trichophyton Rubrum species. Our case of tinea corporis presented some peculiarities related both to the extension of the lesions and their clinical aspects. Zusammenfassung.  Wir berichten uber einen 36-jahrigen Mann, der grosseren rotlaufartigen Ausschlag an Rumpf, Gesicht und Gliedmassen seit einem Monat aufwies. Einige dieser Lasionen sahen wie Psoriasis mit reichlichem Abschuppen aus. In der direkten mikroskopischen Kontrolle der kleinen Schuppen aus den Flecken fanden wir viele Hyphen Kulturell wurde Trichophyton Rubrum nachgewiesen. Unser Fall von Tinea corporis zeigte einige Eigenheiten in Hinblick auf den Umfang und das klinische Bild.

A Gorani - One of the best experts on this subject based on the ideXlab platform.

  • case report widespread tinea corporis due to Trichophyton Rubrum
    Mycoses, 2002
    Co-Authors: A Gorani, A. Schiera, A Oriani
    Abstract:

    Summary.  We report the case of a 36-year-old man who presented large erythematous plaques involving the trunk, face and extremities, since one month. Some of these lesions had a psoriasis-like aspect, with abundant superficial scaling. Direct microscopic examination of scales removed from the plaques revealed numerous hyphae. Cultural examination lead to the identification of Trichophyton Rubrum species. Our case of tinea corporis presented some peculiarities related both to the extension of the lesions and their clinical aspects. Zusammenfassung.  Wir berichten uber einen 36-jahrigen Mann, der grosseren rotlaufartigen Ausschlag an Rumpf, Gesicht und Gliedmassen seit einem Monat aufwies. Einige dieser Lasionen sahen wie Psoriasis mit reichlichem Abschuppen aus. In der direkten mikroskopischen Kontrolle der kleinen Schuppen aus den Flecken fanden wir viele Hyphen Kulturell wurde Trichophyton Rubrum nachgewiesen. Unser Fall von Tinea corporis zeigte einige Eigenheiten in Hinblick auf den Umfang und das klinische Bild.

Richard C. Summerbell - One of the best experts on this subject based on the ideXlab platform.

  • Detection of Xanthomegnin in Epidermal Materials Infected with Trichophyton Rubrum
    Journal of Investigative Dermatology, 2000
    Co-Authors: Aditya K. Gupta, Iftikhar Ahmad, Ian Borst, Richard C. Summerbell
    Abstract:

    Xanthomegnin, a mutagenic mycotoxin best known as an agent of nephropathy and death in farm animals exposed to food-borne Penicillium and Aspergillus fungi, was first isolated about 35 y ago as a diffusing pigment from cultures of the dermatophyte, Trichophyton megninii . This study investigates the production of xanthomegnin by the most common dermatophytic species, Trichophyton Rubrum , both in dermatologic nail specimens and in culture. In view of the labile nature of xanthomegnin, a chromatographic procedure was developed to allow high-performance liquid chromatography analysis within 1 h of sample extraction. In cultures, Tricho- phyton Rubrum produced xanthomegnin as a major pigment that appears to give the culture its characteristic red colony reverse. Xanthomegnin was also repeatedly extracted from human nail and skin material infected by Trichophyton Rubrum . The level of xanthomegnin present, however, varied among the clinical samples studied. Xanthomegnin was not detected in uninfected nails. These results show that patients with Trichophyton Rubrum infections may be exposed to xanthomegnin, although the consequences of such an exposure are not currently known.

  • Tinea capitis due to Trichophyton Rubrum in adult women.
    Mycoses, 1995
    Co-Authors: H. Bargman, J. Kane, Mary‐lou Baxter, Richard C. Summerbell
    Abstract:

    Summary. Two unusual cases of tinea capitis due to Trichophyton Rubrum in adult women are reported. ZUSAMMENFASSUNG. Es wird uber zwei ungewohnliche, durch Trichophyton Rubrum verursachte Situationen von Tinea capitis bei erwachsenen Frauen berichtet.

A. Schiera - One of the best experts on this subject based on the ideXlab platform.

  • case report widespread tinea corporis due to Trichophyton Rubrum
    Mycoses, 2002
    Co-Authors: A Gorani, A. Schiera, A Oriani
    Abstract:

    Summary.  We report the case of a 36-year-old man who presented large erythematous plaques involving the trunk, face and extremities, since one month. Some of these lesions had a psoriasis-like aspect, with abundant superficial scaling. Direct microscopic examination of scales removed from the plaques revealed numerous hyphae. Cultural examination lead to the identification of Trichophyton Rubrum species. Our case of tinea corporis presented some peculiarities related both to the extension of the lesions and their clinical aspects. Zusammenfassung.  Wir berichten uber einen 36-jahrigen Mann, der grosseren rotlaufartigen Ausschlag an Rumpf, Gesicht und Gliedmassen seit einem Monat aufwies. Einige dieser Lasionen sahen wie Psoriasis mit reichlichem Abschuppen aus. In der direkten mikroskopischen Kontrolle der kleinen Schuppen aus den Flecken fanden wir viele Hyphen Kulturell wurde Trichophyton Rubrum nachgewiesen. Unser Fall von Tinea corporis zeigte einige Eigenheiten in Hinblick auf den Umfang und das klinische Bild.

Yvonne Gräser - One of the best experts on this subject based on the ideXlab platform.

  • Species Distinction in the Trichophyton Rubrum Complex
    Journal of Clinical Microbiology, 2019
    Co-Authors: Ann Packeu, Wei-da Liu, Yvonne Gräser, Sarah A. Ahmed, Abdullah M. S. Al-hatmi, Oliver Blechert, Macit Ilkit, Ferry Hagen, Shuwen Deng
    Abstract:

    The Trichophyton Rubrum species complex comprises commonly encountered dermatophytic fungi with a worldwide distribution. The members of the complex usually have distinct phenotypes in culture and cause different clinical symptoms, despite high genome similarity. In order to better delimit the species within the complex, molecular, phenotypic, and physiological characteristics were combined to reestablish a natural species concept. Three groups, T. Rubrum, T. soudanense, and T. violaceum, could be distinguished based on the sequence of the internal transcribed spacer (ITS) ribosomal DNA barcode gene. On average, strains within each group were similar by colony appearance, microscopy, and physiology, but strains between groups showed significant differences. Trichophyton Rubrum strains had higher keratinase activity, whereas T. violaceum strains tended to be more lipophilic; however, none of the phenotypic features were diagnostic. The results of matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) and amplified fragment length polymorphism (AFLP) were partially consistent with the ITS data but failed to distinguish the species unambiguously. Despite their close similarity, T. violaceum, T. soudanense, and T. Rubrum can be regarded as independent species with distinct geographical distributions and clinical predilections. Trichophyton soudanense is pheno- and genotypically intermediate between T. Rubrum and T. violaceum For routine diagnostics, ITS sequencing is recommended.

  • Molecular Taxonomy of the Trichophyton Rubrum Complex
    Journal of Clinical Microbiology, 2000
    Co-Authors: Yvonne Gräser, A. F. A. Kuijpers, Wolfgang Presber, G.s. De Hoog
    Abstract:

    The validity of taxa around Trichophyton Rubrum was evaluated by a combination of phenetic and molecular methods. Morphological and physiological features were compared to results of sequencing of the internal transcribed spacer region of the ribosomal operon, PCR fingerprinting, and amplified fragment length polymorphism analysis. The 15 species and varieties investigated (Trichophyton circonvolutum, Trichophyton fischeri, Trichophyton fluviomuniense, Trichophyton glabrum, Trichophyton gourvilii, Trichophyton kanei, Trichophyton kuryangei, Trichophyton megninii, Trichophyton pedis, Trichophyton raubitschekii, Trichophyton rodhaini, Trichophyton Rubrum var. nigricans, Trichophyton soudanense, Trichophyton violaceum var. indicum, and Trichophyton yaoundei) were reclassified or synonymized as T. Rubrum or T. violaceum.

  • molecular markers reveal exclusively clonal reproduction in Trichophyton Rubrum
    Journal of Clinical Microbiology, 1999
    Co-Authors: Yvonne Gräser, J Kuhnisch, Wolfgang Presber
    Abstract:

    Genotypic variability among 96 Trichophyton Rubrum strains which displayed different colony morphologies and were collected from four continents was investigated. Twelve markers representing 57 loci were analyzed by PCR fingerprinting, amplified fragment length polymorphism, and random amplified monomorphic DNA markers. Interestingly, none of the methods used revealed any DNA polymorphism, indicating a strictly clonal mode of reproduction and a strong adaptation to human skin.

Related terms

Trichophyton Rubrum - 15 days free trial to Access Experts & Abstracts