Antimycotic therapy of experimental infections caused by dematiaceous fungi
- 1 January 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Medical Mycology
- Vol. 22 (4) , 279-289
- https://doi.org/10.1080/00362178485380481
Abstract
Experimental infections of mice with Wangiella dermatitidis and Fonsecaea pedrosoi provided a model for evaluating new antifungal agents or new combination therapy. In our models flucytosine exerted a dose-related therapeutic effect on the acute and on the more chronic infection. In the acute Wangiella infection amphotericin B also showed therapeutic activity whereas in the Fonsecaea model the effect was weak. The azole derivative ICI 153066 was the most efficacious drug in the Wangiella model whereas ketoconazole was inactive. The effect on colony-forming units of fungi in the brain was stronger with all drugs tested than the effect on survival time. Combination therapy with flucytosine + amphotericin B showed reproducible potentiating effects whereas the combination of flucytosine + ketoconazole was only additive and amphotericin B + ketoconazole showed no synergistic effect. Mäuse, die mit Wangiella dermatitidis und Fonsecaea pedrosoi infiziert waren, dienten als Modell zur Evaluierung des therapeutischen Effekts neuer Antimykotika und ihrer Kombinationen. In unserem Modell zeigte 5-Fluorocytosin eine dosisabhängige Wirkung gegen akute wie auch chronische Infektionen. Amphotericin B war gegen akute Wangiella-Infektion ebenfalls wirksam, wogegen die chronische Fonsecaea-Infektion kaum beeinflusst wurde. Das Azol ICI 153066 was das aktivste Medikament bei Wangiella-Infektion, Ketoconazol was dagegen unwirksam. Die Lebenzeit wurde durch alle Medikamente weniger beeinflusst als die c.f.u. im Gehirn. Kombinationen mit 5-Fluorocytosin + Amphotericin B zeigten reproduzierbare potenzierende Wirkungen, wogegen Kombinationen von 5-Fluorocytosin + Ketoconazol oder Amphotericin B + Ketoconazol keine synergistischen Wirkungen aufwiesen.This publication has 8 references indexed in Scilit:
- Experimental infection of mice byFonsecaea pedrosoiandWangiella dermatitidisMedical Mycology, 1984
- Treatment of chromomycosis with ketoconazole and 5-fluorocytosineJournal of the American Academy of Dermatology, 1983
- Mode of action of 5-fluorocytosine and 5-fluorouracil in dematiaceous fungiMedical Mycology, 1983
- Combination Therapy of Experimental Candidiasis, Cryptococcosis and Aspergillosis in MiceChemotherapy, 1982
- A Comparison of Amphotericin B Alone and Combined with Flucytosine in the Treatment of Cryptoccal MeningitisNew England Journal of Medicine, 1979
- Chemotherapy of Systemic MycosesNew England Journal of Medicine, 1974
- Experimental Therapy of Cladosporiosis and Sporotrichosis with 5-FluorocytosineAntimicrobial Agents and Chemotherapy, 1973
- 5-Fluorocytosine in the Treatment of Mycotic InfectionsAnnals of Internal Medicine, 1972