نتایج جستجو برای: entamoeba histolytica

تعداد نتایج: 3167  

رضاییان , مصطفی, هوشیار , حسین,

Backgroun and Aim: Differential diagnosis of Entamoeba histolytica and Entamoeba dispar is important in clinical and epidemiological studies. The two organisms are morphologically identical but they differ in their genetics, biochemistry, and pathogenicity. The present study was carried out with the aim of distinguishing the two species and determining the prevalence of each organism in the rur...

2011
Nader Pestehchian Mahnaz Nazary Ali Haghighi Mansour Salehi Hosinali Yosefi

BACKGROUND Differentiation between Entamoeba histolytica and Entamoeba dispar is very important for both clinical therapy and epidemiological studies. Although these two species are morphologically identical, they have differences in genetic, chemical specifications and pathogenicity. This study was carried out to differentiate E. histolytica from E. dispar and also to find out frequency of the...

Journal: :The American journal of tropical medicine and hygiene 2002
María Del Carmen Sánchez-Guillén Ricardo Pérez-Fuentes Hilda Salgado-Rosas Alejandro Ruiz-Argüelles John Ackers Abdirashid Shire Patricia Talamas-Rohana

To correlate a particular state of immunity with Entamoeba spp., we used colorimetric PCR to differentiate E. histolytica from E. dispar in individuals with amoebiasis and to associate its presence with the clinical profile, including humoral and cellular immune responses to E. histolytica. Our results showed high levels of antibody in acute amoebiasis and elevation of IL-4 production, a cytoki...

2012
I W Wilson G D Weedall N Hall

Invasive amoebiasis caused by Entamoeba histolytica is a major global health problem. Virulence is a rare outcome of infection, occurring in fewer than 1 in 10 infections. Not all strains of the parasite are equally virulent, and understanding the mechanisms and causes of virulence is an important goal of Entamoeba research. The sequencing of the genome of E. histolytica and the related avirule...

Journal: :Journal of ethnopharmacology 2007
Rosa E Moo-Puc Gonzalo J Mena-Rejon Leovigildo Quijano Roberto Cedillo-Rivera

Methanol extracts of leaves, roots and bark of Senna racemosa (Mill.) H.S. Irwin & Barneby (syn. Cassia racemosa Mill.) were tested for antiprotozooal activity against Giardia intestinalis and Entamoeba histolytica. All of the tested extracts showed good activity against both protozoa species. Extracts from stem bark and leaves were most active, with an IC(50) of 2.10 microg/mL for Giardia inte...

2013
Nishant Singh Alok Bhattacharya Sudha Bhattacharya

Homologous recombination (HR) has not been demonstrated in the parasitic protists Entamoeba histolytica or Entamoeba invadens, as no convenient method is available to measure it. However, HR must exist to ensure genome integrity, and possible genetic exchange, especially during stage conversion from trophozoite to cyst. Here we show the up regulation of mitotic and meiotic HR genes in Entamoeba...

Journal: :Turkiye parazitolojii dergisi 2013
Fadile Yıldız Zeyrek Nevin Turgay Aysegül Unver Sebnem Ustün Ulus Akarca Seray Töz

OBJECTIVE We aimed to diagnose amebiasis and also identify Entamoeba histolytica (E. histolytica) and Entamoeba dispar (E. dispar) in patients with gastrointestinal symptoms in an endemic region in Turkey. METHODS Stool samples obtained from 181 patients with gastrointestinal symptoms from the Harran University Hospital of Sanliurfa were examined for the diagnosis of amebiasis by the three me...

2014
Kyeong Ah Kim Arim Min Young Ah Lee Myeong Heon Shin

Entamoeba histolytica is a tissue-invasive protozoan parasite causing dysentery in humans. During infection of colonic tissues, amoebic trophozoites are able to kill host cells via apoptosis or necrosis, both of which trigger IL-8-mediated acute inflammatory responses. However, the signaling pathways involved in host cell death induced by E. histolytica have not yet been fully defined. In this ...

Journal: : 2022

<b>Aim: </b>Amebiasis is a disease caused by protozoon <i>Entamoeba histolytica</i>, that results in amoebic dysentery. While intestinal parasites are the third leading cause of death, especially developing countries, it has been global concern. Bibliometric methods have used parasitology discipline for more than 30 years, however there not any bibliometric study on ameb...

Journal: :medical journal of islamic republic of iran 0
m fallah from the department of parasitology, school of medicine, hamadan university of medical sciences, hamadan a haghighi the department of parasitology, shahid beheshti university of medical sciences, tehran, l.r iran. h tachibana the department of infectious diseases, tokai university school of medicine, isehara, kanagawa, japan

it has been suggested that two distinct species exist within what was originally known as entamoeba histolytica and e. dispar. these are entamoeba dispar for the nonpathogenic and e. histolytica for the pathogenic fonn. differentiation of these two organisms is of great clinical importance since they are morphologically indistinguishable and both fonns can infect the human intestinal cavity. a ...

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