Antibodies against Entamoeba histolytica in individuals with intestinal amoebiasis presenting cysts and/or trophozoites in the feces
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چکیده
منابع مشابه
Entamoeba histolytica Trophozoites Induce an Inflammatory Cytokine
Infection with the protozoan parasite Entamoeba histolytica results in a high mortality worldwide. To initiate infection, E. histolytica trophozoites in the bowel lumen penetrate the epithelium, and cause extensive lysis of host cells. The acute amebic lesions in animal models are characterized by infiltration with inflammatory cells, particularly neutrophils. The acute host response is likely ...
متن کاملRadiosensitivity of Entamoeba histolytica cysts.
A dose of approximately 8,400 RAD noticeably lowered the number of viable cysts of E. histolytica in a clear, saline suspension, as calculated by the Most Probable Number method. Doses of approximately 16,700 RAD and more destroyed more than 99% of viable cysts. The relation between increasing cyst mortality and increasing gamma-ray dosage is represented by a logarithmic straight line. A differ...
متن کاملSeropositivity for and intestinal colonization with Entamoeba histolytica and entamoeba dispar in individuals in northeastern Brazil.
In a slum community in northeastern Brazil 20% of a sample population was colonized with Entamoeba histolytica or Entamoeba dispar and 10.6% was colonized with E. histolytica alone. No correlation between seropositivity for anti-Ga1NAc lectin antibody and colonization was found. These results suggest that colonization does not necessarily produce immunity to reinfection.
متن کاملProteomic Study of Entamoeba histolytica Trophozoites, Cysts, and Cyst-Like Structures
The cyst stage of Entamoeba histolytica is a promising therapeutic target against human amoebiasis. Our research team previously reported the production in vitro of Cyst-Like Structures (CLS) sharing structural features with cysts, including rounded shape, size reduction, multinucleation, and the formation of a chitin wall coupled to the overexpression of glucosamine 6-phosphate isomerase, the ...
متن کاملA membrane-associated neuraminidase in Entamoeba histolytica trophozoites.
Trophozoites of the parasitic amoeba Entamoeba histolytica HM-1:IMSS possess a surface neuraminidase capable of liberating N-acetylneuraminic acid (NANA) from N-acetylneuramin-lactose (alpha 2----3 or alpha 2----6) or mucin in their medium. The neuraminidase was found to be membrane associated, with more than 50% of the yield being recovered in the plasma membrane fraction. The neuraminidase sp...
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ژورنال
عنوان ژورنال: Revista do Instituto de Medicina Tropical de São Paulo
سال: 1991
ISSN: 0036-4665
DOI: 10.1590/s0036-46651991000500007