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Human pathogenic Protozoa Results of differential diagnosis of the genera and species in the Entamoeba histolytica/Entamoeba dispar complex and Acanthamoeba spp, Microsporidia Protozoi patogeni per luomo Protocolli di caratterizzazione differenziale di genere e di specie nellambito del complesso Entamoeba histolytica/Entamoeba dispar, Acanthamoeba spp, microsporidi



Human pathogenic Protozoa Results of differential diagnosis of the genera and species in the Entamoeba histolytica/Entamoeba dispar complex and Acanthamoeba spp, Microsporidia Protozoi patogeni per luomo Protocolli di caratterizzazione differenziale di genere e di specie nellambito del complesso Entamoeba histolytica/Entamoeba dispar, Acanthamoeba spp, microsporidi



Parassitologia (Rome). December; 43(Suppl. 1: 37-44



The review summarizes the results in the main parasitological topics of our Lab: amoebic infections due to Entamoeba histolytica/Entamoeba dispar complex and to Acanthamoeba spp. respectively, and human infections caused by microsporidia. Different rapid and advanced techniques have been included in the standardized diagnostic protocols for each topic, and a critical comparison among them was made, in order to define the gold standard diagnostic method: a) E. histolytica/E. dispar: in vitro culture, zymodeme typization, biomolecular identification (POR), immunoenzymatic assay (ELISA) for direct detection in stools of specific surface antigenic lectins; b) Acanthamoeba spp.: in vitro culture, light and ultrastructural characterization, species identification by immunofluorescence method with monoclonal antibodies, in vitro pharmacological studies; c) Microsporidia: ultrastructural (TEM), biomolecular (PCR), biochemical and immunological (SDS-PAGE, Immunoblotting) studies for species identification, use of advanced ultrastructural techniques "freeze-etching", "deep-etching") in order to deepen the spore wall structure, to study the cytoskeletal function of actin and to define the mode of infection, in vitro pharmacological assays on some inhibitors of chitin-synthases.

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