Cryptococcus neoformans is a yeastlike encapsulated basidiomycetous fungus that is able to cross the blood-brain barrier and cause meningitis in both immunocompetent and immunocompromised individuals. Cryptococcus neoformans has emerged as a major opportunistic pathogen because of the widespread use of immunosuppressive therapy. It causes most cryptococcal infections in humans, and disseminated infection can have cutaneous manifestations. We report a rare case of disseminated C neoformans in a 52-year-old man who underwent an orthotopic liver transplant. We also provide a concise review of the literature on C neoformans, including its associations, histology, and treatment.
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Curr Med Mycol
April 2024
Department of Biotechnology, College of Science, University of Anbar, Ramadi, Anbar, Iraq.
Background And Purpose: and are highly virulent species that cause diseases, such as meningoencephalitis and pulmonary infections. The gene predominantly determines the virulence of the pathogenic species. This study aimed to examine in both pathogenic and non-pathogenic species.
View Article and Find Full Text PDFPLoS One
December 2024
Faculty of Biotechnology and Genetic Engineering, Sylhet Agricultural University, Sylhet, Bangladesh.
Cryptococcosis is a lethal mycosis instigated by the pathogenic species Cryptococcus neoformans and Cryptococcus gattii, primarily affects the lungs, manifesting as pneumonia, and the brain, where it presents as meningitis. Mortality rate could reach 100% if infections remain untreated in cryptococcal meningitis. Treatment options for cryptococcosis are limited and and there are no licensed vaccines clinically available to treat or prevent cryptococcosis.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Department of Pharmacology and Toxicology, R Ken Coit College of Pharmacy, 1703 E Mabel St, Tucson AZ, 85721-0207, USA; The BIO5 Institute, The University of Arizona, Tucson, AZ 85721, USA; Biological Chemistry Program, Department of Chemistry and Biochemistry, College of Science & College of Medicine, The University of Arizona, Tucson, AZ 85721, USA; Department of Molecular & Cellular Biology, College of Science, The University of Arizona, Tucson, AZ 85721, USA. Electronic address:
Inteins are mobile elements within a host protein, with flanking exteins. Autocleavage of intein results in the fusion of exteins, leading to activation of protein. The presence of intein is species dependent.
View Article and Find Full Text PDFMed Mycol
December 2024
UR 3738 - CICLY - Equipe Inflammation et immunité de l'épithélium respiratoire, Faculté de Médecine Lyon-Sud Charles Mérieux, Université Claude Bernard Lyon 1, Lyon, France.
Cryptococcus neoformans/gattii and Histoplasma capsulatum var. capsulatum may present atypical histopathological features inducing diagnostic errors. We aimed to estimate the frequency of these atypical features on formalin-fixed tissue samples (FT) and to assess the relevance of an integrated histomolecular diagnosis using specific Histoplasma capsulatum PCR and panfungal PCR followed by Sanger sequencing and/or targeted-massive parallel sequencing (MPS).
View Article and Find Full Text PDFTrop Med Infect Dis
December 2024
Department of Parasitology, Mycology and Tropical Medicine, Université des Sciences de la Santé (USS), Libreville BP 4009, Gabon.
Cryptococcal meningitis is a major cause of death in HIV/AIDS patients due to the existence of in the central nervous system. Our objective was to evaluate the prevalence of Cryptococcus antigenuria in a population of HIV-infected patients in Libreville, Gabon. : This study was conducted from April to October 2021 at the Infectious Diseases ward of the Centre Hospitalier Universitaire de Libreville.
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