Introduction: Yeasts belonging to the genus Candida are responsible for the majority of fungal infections in humans. Candida tropicalis has been one of most commonly isolated non-albicans species. To analyze in vitro hemolysis promoted by clinical isolates of C. tropicalis obtained from blood and other clinical samples from hospitalized patients at the University Hospital of Londrina State University, Paraná, Brazil.
Methods: The hemolysis promoted by 28 clinical isolates of C. tropicalis was evaluated, and the isolates were grouped into classes according to the hemolysis levels.
Results: The majority of the blood isolates showed weak hemolysis (+), while the classes of strong hemolysis (+++) and very strong hemolysis (++++) predominated among isolates from other clinical samples such as urine, nail lesions and tracheal secretions. However, no statistical differences were detected (p> 0.05).
Conclusions: Isolates of C. tropicalis obtained from different clinical samples showed a capacity to promote in vitro hemolysis.
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http://dx.doi.org/10.1590/s0037-86822010000300021 | DOI Listing |
Vet Res Commun
January 2025
Soil Science Faculty, Lomonosov Moscow State University, Moscow, 119234, Russia.
Extracellular hydrolytic activity (phospholipase, protease and hemolysin production) was evaluated in 178 strains of potentially pathogenic ascomycetous (Candida parapsilosis, Candida tropicalis) and basidiomycetous (Rhodotorula mucilaginosa) yeasts isolated from the excreta of Mew Gulls. Two bird colonies, one nesting in a natural habitat and the other in an urban habitat at the landfill, were studied simultaneously during their 7-month breeding season. Significant differences in phospholipase and protease production were found between natural and anthropophized strains.
View Article and Find Full Text PDFCurr Med Mycol
May 2024
Department of Medical Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Background And Purpose: Onychomycosis is a common fungal infection that affects the nails, caused by various fungal agents. Moreover, yeast onychomycosis has increased in recent years. Yeast isolates might not be identified at the species level by conventional methods, whereas molecular methods can identify yeast isolates more accurately.
View Article and Find Full Text PDFCurr Med Mycol
March 2024
Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Background And Purpose: Plants are crucial habitats for fungus communities as they provide an appropriate physical environment for the growth and reproduction of the yeast microbiome. Varieties of pathogenic and non-pathogenic yeast could be found in trees. Although species are the most common pathogenic yeasts associated with trees, other yeasts also grow on trees and are critical to human health.
View Article and Find Full Text PDFInfect Dis Rep
December 2024
Microbial Biotechnology Laboratory, Department of Marine Biotechnology, Bharathidasan University, Tiruchirappalli 620024, India.
Indwelling intrauterine contraceptive devices (IUDs) have surfaces that facilitate the attachment of spp., creating a suitable environment for biofilm formation. Due to this, vulvovaginal candidiasis (VVC) is frequently linked to IUD usage, necessitating the prompt removal of these devices for effective treatment.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Universidade Regional Do Cariri - URCA, Rua Cel. Antônio Luiz, 1161 - Pimenta, Crato, CE, Brazil.
Candidiasis is an infectious disease caused by some fungi of the genus Candida. In Brazil, the incidence rate is higher than in European countries and the United States, and health problems occur mainly due to the virulence factors of the fungi, which have made treatment with commercial drugs difficult. Considering the context, plants rich in phenolic compounds, such as those of the genus Piper, have been studied due to their antimicrobial properties.
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