Results 31 to 40 of about 428 (133)

Biology and pathogenesis of Naegleria fowleri [PDF]

Acta Tropica, 2016
Naegleria fowleri is a protist pathogen that can cause lethal brain infection. Despite decades of research, the mortality rate related with primary amoebic meningoencephalitis owing to N. fowleri remains more than 90%. The amoebae pass through the nose to enter the central nervous system killing the host within days, making it one of the deadliest ...
Ruqaiyyah, Siddiqui, Ibne Karim M, Ali, Jennifer R, Cope, Naveed Ahmed, Khan   +3 more
openaire   +2 more sources

Discovery of an Atypical Arp2/3 Complex in Malaria Parasites Sheds New Light on Nuclear Actin

Cytoskeleton, Volume 83, Issue 7, Page 479-483, July 2026.
ABSTRACT The Arp2/3 complex is a key actin nucleator essential for cytoskeletal dynamics in eukaryotes. Previously believed absent in apicomplexan parasites, we recently identified an atypical Arp2/3 complex in malaria parasites consisting of five divergent subunits and a putative kinetochore‐associated factor.
Franziska Hentzschel, Friedrich Frischknecht, Matthias Marti   +2 more
wiley   +1 more source

Isolation and Identification of Naegleria Species in Irrigation Channels for Recreational Use in Mexicali Valley, Mexico

Pathogens, 2020
Members of the genus Naegleria are free-living amoebae that are widely distributed in water and soil environments. Moreover, Naegleria fowleri is a pathogenic amoeba species that causes a fatal disease in the central nervous system known as primary ...
Patricia Bonilla-Lemus, Saúl Rojas-Hernández, Elizabeth Ramírez-Flores, Diego A. Castillo-Ramírez, Alejandro Cruz Monsalvo-Reyes, Miguel A. Ramírez-Flores, Karla Barrón-Graciano, María Reyes-Batlle, Jacob Lorenzo-Morales, María Maricela Carrasco-Yépez   +9 more
doaj   +1 more source

Ultrastructure of Naegleria fowleri enflagellation [PDF]

Journal of Bacteriology, 1981
Amoebae of Naegleria fowleri nN68 became elongated flagellated cells 150 to 180 min after subculture to non-nutrient buffer. N. fowleri NF69 did not become elongated or flagellated under these conditions. Electron microscopic examination of N. fowleri confirmed that it is a typical eucaryotic protist with a distinct nuclear envelope and prominent ...
M, Patterson, T W, Woodworth, F, Marciano-Cabral, S G, Bradley   +3 more
openaire   +2 more sources

Long‐Read Metabarcoding With Optimized Bioinformatic Analysis Outperforms Short‐Read Metabarcoding for Assessing Soil Protist Diversity and Ecology

Environmental DNA, Volume 8, Issue 4, July‐August 2026.
Comparing 18S metabarcoding of protist cultures and environmental samples with short and long read sequencing highlighted the advantages of each method. In particular, the study of 26 vineyard soil samples with long reads showed high potential and reliability for ecological research with an increased sensitivity to environmental patterns.
Aline Adler, David Singer, Sarah Wegmüller, Sarah Scotton, Thierry J. Heger, Alexandre Kuhn   +5 more
wiley   +1 more source

Isolation and Identification of Naegleria Species from Environmental Water in Changchun, Northeastern China

Iranian Journal of Parasitology, 2014
Background: Naegleria is a free-living amoeba, and pathogenic Naegleria may pose a health risk to people exposed to recreational water. Our objective in this study was to determine if there are pathogenic amoebae in environmental water samples from ...
Wei Wang, Feng Wei, Jiping Li, Nan Li, Quan Liu   +4 more
doaj  

The genome of Naegleria lovaniensis, the basis for a comparative approach to unravel pathogenicity factors of the human pathogenic amoeba N. fowleri

BMC Genomics, 2018
Background Members of the genus Naegleria are free-living eukaryotes with the capability to transform from the amoeboid form into resting cysts or moving flagellates in response to environmental conditions.
Nicole Liechti, Nadia Schürch, Rémy Bruggmann, Matthias Wittwer   +3 more
doaj   +1 more source

Extracellular Vesicles of Giardia duodenalis: Unravelling Their Virulence Factors and Potential to Induce Protection Against Experimental Giardiasis

Journal of Extracellular Biology, Volume 5, Issue 6, June 2026.
ABSTRACT Extracellular vesicles (EVs) are key mediators of intercellular communication, enabling trans‐kingdom exchange of proteins, nucleic acids, lipids, and metabolites. In Giardia duodenalis, EVs contribute to parasite survival, host–pathogen interactions, and immune modulation.
Corral‐Ruiz Gerardo, Argüello‐García Raúl, Ortiz‐Lozano Dalia, Salazar‐Villatoro Lizbeth, Pech‐Santiago Edar Onam, Espinosa‐Cantellano Martha, Hernández‐Cueto Daniel, Silva‐Olivares D. Angélica, Betanzos Abigail, Ortega‐Pierres M. Guadalupe   +9 more
wiley   +1 more source

Isolation and Molecular Identification of Acanthamoeba and Naegleria from Agricultural Water Canal in Qazvin, Iran

Iranian Journal of Parasitology, 2020
Background: Free-living amoeba (FLA) are widely distributed in different environmental sources. The most genera of the amoeba are Acanthamoeba, Naegleria and Vermamoeba.
Mandana KHORSANDI RAFSANJANI, Elham HAJIALILO, Mehrzad SARAEI, Safar Ali ALIZADEH, Amir JAVADI   +4 more
doaj   +1 more source

Short-term sequence evolution and vertical inheritance of the Naegleria twin-ribozyme group I intron

BMC Evolutionary Biology, 2006
Background Ribosomal DNA of several species of the free-living Naegleria amoeba harbors an optional group I intron within the nuclear small subunit ribosomal RNA gene.
De Jonckheere Johan F, Einvik Christer, Wikmark Odd-Gunnar, Johansen Steinar D   +3 more
doaj   +1 more source