Objetivo: El objetivo de este estudio fue aislar levaduras pertenecientes al complejo especies Cryptococcus neoformans los excrementos paloma Castilla (Columba livia) recolectados plazas y parques públicos Salvador. Métodos: Las muestras se sembraron en medios cultivos convencionales a las colonias confirmadas les efectuó una tipificación mediante la técnica restricción enzimática del gen URA5....

conclusions chronic meningitis in immunocompromised hosts can be due to more than one pathologic etiology and we should do all diagnostic evaluation to rule out all possible differential diagnosis. introduction cryptococcal meningitis is a rare disorder that is caused by cryptococcus neoformans in immunocompromised host. case presentation the case was a 64-year-old man with a history of stem ce...

Cryptococcus neoformans isolates were previously obtained from pigeon droppings in Jakarta. This study aimed to determine another source of infection and describe the supporting niche fungus. The occurrence C. was evaluated 110 samples decaying wood leaves, tree hollow debris, dust, bird droppings. Yeasts collected 22 houses HIV-infected patients. identified based on culture characteristics, an...

UNLABELLED Cryptococcus neoformans is a human fungal pathogen and a major cause of fungal meningitis in immunocompromised individuals. Treatment options for cryptococcosis are limited. Of the two major antifungal drug classes, azoles are active against C. neoformans but exert a fungistatic effect, necessitating long treatment regimens and leaving open an avenue for emergence of azole resistance...

introduction : the decreased level of immunity in human immunodeficiency virus (hiv) infected patients increases their vulnerability to various opportunistic fungal infections. oral candidiasis has been found to be the most common fungal infection among hiv infected patients. the present study was conducted to evaluate the spectrum of various opportunistic fungal infections and their correlatio...

Cryptococcus neoformans, an encapsulated, pathogenic yeast, is endowed with a variety of virulence factors, including a polysaccharide capsule. During mammalian infection, the outcome of the interaction between C. neoformans and macrophages is central to determining the fate of the host. Previous studies have shown similarities between the interaction of C. neoformans with macrophages and with ...

Cryptococcus neoformans is an opportunistic pathogenic yeast that causes meningoencephalitis and deep skin dermatitis in humans and animals. A hygienic strategy using disinfectants on environmental samples can reduce the risk to the public. The objectives were to survey the distribution of C. neoformans in pigeon fecal droppings collected in 11 districts in Bangkok during 2011-2012 and to evalu...

The invasive ability of the blood-borne fungal pathogen Cryptococcus neoformans can be enhanced through interactions with host plasma components, such as plasminogen. Previously we showed by in vitro studies that plasminogen coats the surface of C. neoformans and is converted to the active serine protease, plasmin, by host plasminogen activators. Viable, but not formaldehyde- or sodium azide-ki...

The pathogenic fungus Cryptococcus neoformans infects humans upon inhalation and causes the most common fungal meningoencephalitis in immunocompromised subjects worldwide. In the host, C. neoformans is found both intracellularly and extracellularly, but how these two components contribute to the development of the disease is largely unknown. Here we show that the glycosphingolipid glucosylceram...

Cryptococcus neoformans is a facultative intracellular pathogen. The most distinctive feature of C. neoformans is a polysaccharide capsule that enlarges depending on environmental stimuli. The mechanism by which C. neoformans avoids killing during phagocytosis is unknown. We hypothesized that capsule growth conferred resistance to microbicidal molecules produced by the host during infection, pa...