Showing posts with label Cryptococcus neoformans. Show all posts
Showing posts with label Cryptococcus neoformans. Show all posts

Thursday, 28 September 2023

Zoonotic Potential of Cryptococcus spp. in Donkeys: An Urgent Public Health Issue in Egypt | Chapter 2 | Advanced Research in Biological Science Vol. 4

 Cryptococcus is an arising fungus that has acquire medical significance over the last decade, as it causes life-threatening contaminations in both persons and animals. In Egypt, skilled is limited facts about the epidemiology, preservation, and pathogenesis of Cryptococcus spp. in donkeys. Therefore, the current study was carried out to investigate the incident and molecular traits of Cryptococcus species between healthy and unhealthy donkeys and its likely role in the epidemiology of specific pathogen in Egypt. A total of 52 nasal swabs were calm from apparently healthful (n=38) and diseased donkeys (n=14) at various localities in Egypt containing Cairo, Giza, and El-Fayoum Governorates. Bacteriological examination and identification of Cryptococcus spp. were acted. Molecular serotyping of Cryptococcus spp was determined by miscellaneous PCR using CNa-70S/A- CNb-49S/A. The resentment genes (LAC1, CAP59, and PLB1) of the identified isolates were discovered by PCR. Our results showed that the overall incident of Cryptococcus spp. in donkeys was 11.5%. The highest proportion was in El-Fayoum, while Cairo and Giza's governorates followed behind with 10% and 8.8% individually. Phenotypic identification of Cryptococcus pointed out that 13.2 % and 7.1% among healthful and diseased donkeys were definite for this pathogen, respectively. Donkeys earlier than 10 years had ultimate Cryptococcus spp. infections (14.3%), attended by donkeys from 1 to 5 years (12.1%) and donkeys from 6 to 10 age (8.3%), while in both men (11.4%) and females (11.8%) the pathogen was nearly identical. Statistical reasoning of the potential risk factors guide Cryptococcus colonization in the donkeys acted not show some significant differences. Molecular serotyping of the Cryptococcus spp. isolates (n=6) proved C. gattii (B) in the nasal passages of 4 healthful donkeys (7.7%); while the other 2 C. neoformans (A) (3.8%) isolates recognized in healthy and unhealthy donkeys. Among the virulence genes discovered, four C. gattii and C. neoformans isolates had higher levels of laccase (LAC1) genes. The other 2 C. gattii isolates had capsular befriended protein (CAP59) gene either unique or associated with LAC1 deoxyribonucleic acid. None of the species had the Phospholipase deoxyribonucleic acid. This study underlines a potential association of those fungi accompanying human disease in Egypt. In order to strengthen existent therapeutic and control approaches, further studies of the main risk factors and the additional virulence of these pathogens concede possibility be further considered.

Author(s) Details:

Rahma Mohamed,
Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Giza Square, P.O. Box 12211, Cairo, Egypt.

Sara Nader,
Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Giza Square, P.O. Box 12211, Cairo, Egypt.

Dalia Hamza,
Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Giza Square, P.O. Box 12211, Cairo, Egypt.

Maha A. Sabry,
Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Giza Square, P.O. Box 12211, Cairo, Egypt.

Please see the link here: https://stm.bookpi.org/ARBS-V4/article/view/11971

Wednesday, 23 June 2021

Determining the First Isolation, Antifungal Susceptibility, and Molecular Characterization of Cryptococcus neoformans from the Environment in Croatia | Chapter 3 | Recent Progress in Microbiology and Biotechnology Vol. 6

 The purpose of this study was to identify the molecular types and antifungal susceptibility of Cryptococcus neoformans species complex isolates from Croatian environmental sources. Swab samples of tree hollows and bird excreta were collected from the soil beneath trees. Samples included 472 (92.73%) samples obtained from tree hollows and 37 (7.27%) samples obtained from bird excreta. Four C. neoformans species complex isolates were recovered from tree hollow swabs collected along the route. There were no isolates recovered from bird excreta or the continental area along the Mediterranean coast. Three isolates were identified as having the molecular type VNI and one as having the molecular type VNIV. All of the antifungals tested showed significant in vitro activity against the four isolates. This is the first report demonstrating the presence of the C. neoformans species complex in the Croatian environment. The study's findings point to a significant


Author (s) Details

Donjeta Pllana-Hajdari
Department of Molecular Microbiology, National Institute of Public Health, Prishtina 10 000, Kosovo.

Massimo Cogliati
Laboratorio di Micologia Medica, Dipartimento Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano 20133, Italy.

Ana Cicmak
Department for Parasitology and Mycology, Croatian Institute for Public Health, Zagreb 10 000, Croatia.

Sanja Pleško
Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, University of Zagreb School of Medicine, Zagreb 10 000, Croatia.

Emilija Mlinaric-Missoni
Department for Parasitology and Mycology, Croatian Institute for Public Health, Zagreb 10 000, Croatia.

Ivana Marekovic
Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, University of Zagreb School of Medicine, Zagreb 10 000, Croatia.

View Book :- https://stm.bookpi.org/RPMB-V6/article/view/1677