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Unusual Findings of Human-Associated Four-Nucleated Species in Captive Wild Animals.
Animals (Basel)
January 2025
Department of Parasitology, Faculty of Pharmacy, Complutense University, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
Several species of amoebae in the genus forming four-nucleated mature cysts are pathogenic, but their identification is challenging due to a lack of distinctive morphological traits. Furthermore, host species cannot reliably be used as a criterion for identification. In this study, several isolates of four-nucleated cyst-forming species from animals at the Zoo Aquarium of Madrid are genetically identified.
View Article and Find Full Text PDFConcomitant Potentially Contagious Factors Detected in Poland and Regarding Strains, Etiological Agents of Keratitis in Humans.
Microorganisms
November 2024
Laser Eye Microsurgery Centre Clinic of Prof. Jerzy Szaflik, 00-215 Warsaw, Poland.
Background: Diseases in humans caused by amphizoic amoebae that can result in visual impairment and even blindness, have recently been identified more frequently worldwide. Etiologically complex incidents of keratitis, including those connected with strains detected in Poland, were evaluated in this study.
Methods: Corneal samples from cases resistant to antimicrobial therapy assessed for epidemiological, microbiological and parasitological aspects were investigated by phase-contrast microscope, slit lamp and by confocal microscopy.
Amoebae: beyond pathogens- exploring their benefits and future potential.
Front Cell Infect Microbiol
January 2025
Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India.
Amoebae, fascinatingly diverse protists, showcase a dual nature that positions them as both friends and foes in our world. These organisms, defined by their distinctive pseudopodia, span a spectrum from harmful to helpful. On the darker side, species like pose serious health risks, causing intestinal and liver diseases, while the infamous "brain-eating" leads to fatal primary amoebic meningoencephalitis (PAM), with a daunting 97% mortality rate.
View Article and Find Full Text PDFTranscriptomic profiling of "brain-eating amoeba" infection in mice: the host and the protozoa perspectives.
Front Cell Infect Microbiol
December 2024
Institut Pasteur de la Guadeloupe, Les Abymes, Guadeloupe, France.
The free-living amoeba (NF) causes a rare but lethal parasitic meningoencephalitis (PAM) in humans. Currently, this disease lacks effective treatments and the specific molecular mechanisms that govern NF pathogenesis and host brain response remain unknown. To address some of these issues, we sought to explore naturally existing virulence diversity within environmental NF isolates.
View Article and Find Full Text PDFVertical stratification of the water microbiome in an electric water heater tank: implications for premise plumbing opportunistic pathogens.
J Water Health
December 2024
US Environmental Protection Agency, Office of Research and Development, Cincinnati, OH 45268, USA.
Hot water systems are the most frequent environment associated with the prevalence and growth of opportunistic premise plumbing pathogens (OPPPs). Previous studies identified water heaters as a source of waterborne diseases and concluded that design variables may contribute to their prevalence. A multifaceted approach was used to investigate the vertical stratification of the microbiome and selected OPPPs in an electric water heater tank connected to a home plumbing system simulator.
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