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Invasive Candida spp. infections are increasingly diagnosed in critically ill patients. For initial treatment, an echinocandin is recommended with a possible step‐down to fluconazole when the patients’ condition is improving and the isolate appears susceptible, but there are no data to support such policy. We studied the safety and efficacy of step‐down therapy in critically ill patients with culture...
In Brazil, human fungal infections are prevalent, however, these conditions are not officially reportable diseases. To estimate the burden of serious fungal diseases in 1 year in Brazil, based on available data and published literature. Historical official data from fungal diseases were collected from Brazilian Unified Health System Informatics Department (DATASUS). For fungal diseases for which no...
Superficial mycoses are limited to the most external part of the skin and hair and caused by Malassezia sp., Trichophyton sp. and Candida sp. We report extracellular biosynthesis of silver nanoparticles (AgNPs) by acidophilic actinobacteria (SF23, C9) and its in vitro antifungal activity against fungi‐causing superficial mycoses. The phylogenetic analysis based on the 16S rRNA gene sequence of strains...
Candida albicans is one of the most frequent pathogens of the oral cavity, as a major cause of opportunistic disease. Moreover, Candida could be a cofactor of common oral diseases, such as dental caries. The aim of this study was to analyse the oral yeast colonisation in adults with dental caries and to evaluate its relationship with this clinical entity. We studied 190 patients distributed into controls...
Posaconazole tablet formulation (PTF) was developed to optimise bioavailability. This study compared posaconazole levels between patients on the PTF and oral suspension formulation (OSF). We also examined factors that may impact posaconazole levels. The primary and secondary objectives were analysed by comparing trough levels and attainment of target level between the formulation groups. For the 86...
The significant increase in the use of antifungal agents, both for the treatment of candidiasis and invasive aspergillosis and as azole fungicides in agricultural crop protection has resulted in the emergence of resistant clinical isolates, particularly to triazoles and echinocandins. Notably, among isolates that were primarily sensitive to fluconazole such as Candida parapsilosis and Candida tropicalis...
Candida kefyr is an emerging pathogen able to cause disseminated infection, especially in immunocompromised patients. Although guidelines for the treatment of invasive candidiasis have been published, no specific recommendations against C. kefyr are available. We determine the in vitro killing activity of amphotericin B (AMB), fluconazole (FLC) and caspofungin (CFG) as well as their efficacy in a...
Aspergillus flavus is the second most important Aspergillus species causing human infections in tropical countries. Despite an increasing number of infections of A. flavus in Iran, the molecular epidemiology of clinical and environmental strains has not been well studied. We used a panel of nine microsatellite markers to analyse the genetic relatedness of A. flavus. Microsatellite typing of 143 (n...
Most of the dermatophyte species have the ability to perforate hair structure and consume its contents of keratin through secretion of keratinase enzyme. Two clinical isolated species of dermatophytes were diagnosed as Trichophyton mentagrophytes var. granulosum and Trichophyton verrucosum. To determine the perforation ability, the isolated fungi were incubated with the hair of four different animals...
Clinical yeast isolates belonging to Candida pelliculosa, Candida utilis and Candida fabianii are difficult to distinguish in a routine mycology laboratory using common biochemical tests. The aims of this study were to determine the prevalence of C. pelliculosa, C. utilis and C. fabianii in clinical samples and to compare their minimum inhibitory concentrations (MICs) to systemic antifungals. Two...
Many topical commercial products are currently available for the treatment of onychomycosis. However, limited data are available concerning their antifungal activity. Using an in vitro onychomycosis model, the daily application of seven nail formulations was compared to the antifungal reference drug amorolfine (Loceryl®) and evaluated for inhibitory activity against Trichophyton mentagrophytes using...
As onychomycosis is unsightly, this study clinically evaluated whether the antifungal efficacy of amorolfine 5% nail lacquer (NL) was affected by a masking, natural‐coloured, cosmetic nail varnish applied 24 h later; in vitro investigations were also performed. Subjects with mild‐to‐moderate distal subungual toenail onychomycosis were randomised to receive amorolfine 5% NL once weekly with or without...
Echinocandin resistance in Candida glabrata is emerging and is associated with the presence of FKS mutations. In this study, we analysed the antifungal susceptibility, presence of FKS mutations and clonality of C. glabrata blood culture isolates from two hospitals in Germany and Austria. Susceptibility testing of 64 C. glabrata bloodstream isolates from two university hospitals was performed with...
Onychomycosis is a common nail disorder mainly due to dermatophytes for which the conventional diagnosis requires direct microscopic observation and culture of a biological sample. Nevertheless, antifungal treatments are commonly prescribed without a mycological examination having been performed, partly because of the slow growth of dermatophytes. Therefore, molecular biology has been applied to this...
Mucormycosis is associated with significant morbidity and mortality. We reviewed patients with mucormycete isolated at Alfred Health, Australia. A retrospective review of 66 patients with mucormycete(s) identified, between 1 April 2008 and 30 June 2014. Baseline demographic, microbiological, radiological, treatment/outcome data were recorded. Site of isolation was sinopulmonary in 77% and skin/soft...
This study aimed to investigate the influence of tetraconazole and malathion, both used in agricultural activities, on resistance to fluconazole, itraconazole and voriconazole in Candida parapsilosis ATCC 22019. The susceptibility to tetraconazole, malathion, fluconazole, itraconazole and voriconazole, through broth microdilution. Then, 12 independent replicates, were separated and exposed to four...
We investigated the distribution of Malassezia yeast in 120 Chinese (20 patients from each of six cities) and 20 Korean patients with scalp seborrheic dermatitis (SD) and dandruff (SD/D) using ITS1 and ITS2 polymerase chain reaction‐restriction fragment length polymorphism. Bioactivity was studied by quantifying sebum lipid production by human primary sebocytes and inflammatory cytokine, interleukin‐8...
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