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An outbreak of dermatophytosis caused by Microsporum nanum in a traditional Iberian extensive farm is described. The morbidity was 100% among lactating sows; however, suckling and weaning pigs, as well as boars never developed the lesions seen in the sows. The clinical aspects of porcine ringworm caused by this fungus are discussed and the ecology of the organism is reviewed.
To determine the epidemiology, risk factors for and outcome of candidaemia in critically ill patients, a matched case–control study was performed in a 25‐bed intensive care unit (ICU) from August 2004 to January 2006. Candidaemia occurred in 33 patients; each patient was matched to four controls according to admission illness severity, diagnostic category and length of ICU stay. Candida non‐albicans...
Widespread use of fluconazole has resulted in resistance in strains of Candida. The aim of our study was to investigate Y132H and other mutations in the ERG11 gene in conferring fluconazole resistance to C. albicans isolates. Seven fluconazole‐resistant (R)/susceptible dose‐dependent (SDD)/trailing and 10 fluconazole‐susceptible (S) isolates were included. Restriction enzyme analysis was performed...
Scedosporium apiospermum is an emerging agent of opportunistic mycoses in humans. Previously, we showed that mycelia of S. apiospermum secreted metallopeptidases which were directly linked to the destruction of key host proteins. In this study, we analysed the effect of metallopeptidase inhibitors on S. apiospermum development. As germination of inhaled conidia is a crucial event in the infectious...
Although photodynamic therapy (PDT) has shown great promise for the inactivation of Candida species, its effectiveness against azole‐resistant pathogens remains poorly documented. This in vitro study describes the association of Photogem® (Photogem, Moscow, Russia) with LED (light emitting diode) light for the photoinactivation of fluconazole‐resistant (FR) and American Type Culture Collection (ATCC)...
The frequency of mucosal infections caused by Candida glabrata has increased significantly. Candida glabrata infections are often resistant to many azole antifungal agents, especially fluconazole. The purpose of this study was to compare the efficacies of posaconazole (PSC) and fluconazole (FLC) in the treatment of experimental C. glabrata vaginitis caused by isolates with different FLC susceptibilities...
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...
Penicillium marneffei is an intracellular pathogen; the mechanism allowing it to survive under oxidative stress remains unclear. For a better understanding of the response of P. marneffei to oxidative stress, the change in ultrastructure of this fungus before and after treatment with hydrogen peroxide was examined. A bamboo rat isolate and human isolate of P. marneffei were cultured on PDA at 25 °C...
The study was performed to analyse the spectrum of dermatomycoses in southwest Poland during the period 2003–2007. A total of 10 486 patients were investigated for fungal skin infections by means of native specimen and cultivating procedures. Skin scrapings, plucked hairs and nail clippings were examined and identified by direct microscopy and culture. From 2468 patients, 2753 fungi were identified...
A variety of non‐dermatophyte moulds can cause human onychomycosis. We report an unusual case of onychomycosis caused by Phaeoacremonium parasiticum, which has not been mentioned in the literature before. The diagnosis was made by a clinical–mycological correlation. The pathogen was identified by morphological characteristics and further confirmed by sequencing of the β‐tubulin gene.
Risk factors for invasive candidiasis in children with candidaemia are poorly defined. We performed a retrospective cohort study of all children with candidaemia at our tertiary children’s hospital from 2000 to 2006. Invasive candidiasis was diagnosed by review of the medical record and standardised EORTC/MSG criteria. A variety of risk factors for invasive candidiasis were explored. Of 194 episodes...
Fusarium species are common hyaline soil saprophytes and plant pathogens that are opportunistic fungal pathogens of immunocompromised patients. The treatment for fusariosis remains uncertain with an unfavourable prognosis; new possibilities for treatment, such as various synergistic drug interactions, must be uncovered. In this study, we evaluated the in vitro interactions of amphotericin B with caspofungin,...
The combination of amphotericin B and sodium deoxycholate is the formulation most used in clinical practice. The development of new agents such as amphotericin with lipid formulations, caspofungin, voriconazole and other azolic derivatives, promoted alternatives to amphotericin B deoxycholate. However, because of the high cost of these new drugs, their use is difficult in a scenario of limited resources...
Identification of dermatophytes is usually based on morphological characteristics determined by time‐consuming microscopic and cultural examinations. An effective PCR–ELISA method has been developed for rapid detection of dermatophyte species directly from clinical specimens within 24 h. Isolated genomic DNA of skin scrapings and nail samples from patients with suspected dermatophyte infections is...
Fusarium species are non‐dermatophytic moulds, which are commonly known soil saprophytes and important plant pathogens, and have been frequently reported to be aetiological agents of opportunistic infections in humans. The prevalence of onychomycosis caused by Fusarium species varies in the literature because of geographical differences in mould distribution and diagnostic methods. Onychomycosis caused...
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