نتایج جستجو برای: giardia intestinalis

تعداد نتایج: 6081  

2015
Fengguang Guo Guadalupe Ortega-Pierres Raúl Argüello-García Haili Zhang Guan Zhu

Giardiasis caused by Giardia intestinalis (syn. G. lamblia, G. duodenalis) is one of the leading causes of diarrheal parasitic diseases worldwide. Although limited drugs to treat giardiasis are available, there are concerns regarding toxicity in some patients and the emerging drug resistance. By data-mining genome sequences, we observed that G. intestinalis is incapable of synthesizing fatty ac...

Journal: :Turkiye parazitolojii dergisi 2006
Funda Doğruman Al Semra Kuştimur Tuncer Ozekinci Neriman Balaban Mustafa Necmi Ilhan

The aim of this study was to evaluate the value of the direct fluorescent antibody (DFA) techniques reported to have high sensitivity and specificity and the enzyme linked immunosorbent assay (ELISA) test used to determine antigens in stool samples in the routine diagnosis of Giardia intestinalis. When 44 stool samples in which G. intestinalis cysts and/or trophozoites had been seen during nati...

2016
Surinder Kumar Varsha A. Singh

An intestinal parasitic infestation is major public health problem in the world. It is estimated that 3.5 billion people are involved globally and 450 millions are suffering as a result of these infections, majority being children (WHO, 2000). The most important protozoan parasites are the Entamoeba histolytica and Giardia lamblia. Giardia lamblia (syn G. intestinalis, G.duodenalis) is one of t...

Journal: :Glycobiology 2002
Gerrit J Gerwig J Albert van Kuik Bas R Leeflang Johannis P Kamerling Johannes F G Vliegenthart Craig D Karr Edward L Jarroll

Assembly of a protective cyst wall by Giardia is essential for the survival of the parasite outside the host intestine and for transmission among susceptible hosts. The structure of the G. intestinalis filamentous cyst wall was studied by chemical methods, mass spectrometry, and (1)H nuclear magnetic resonance spectroscopy. Isolated cyst wall material contains carbohydrate and protein in a rati...

Journal: :The Southeast Asian journal of tropical medicine and public health 1994
B Sinniah B Rajeswari

Blastocystis hominis has long been described as a non pathogenic protozoan parasite until recently when claims have been made that it can result in pathogenic conditions. Of the 729 stool samples (614 from survey and 115 from pediatric wards) examined, 18.1% of them were found to be positive for one or more intestinal protozoan cyst. The commonest was Giardia intestinalis (8.4%) Followed by Ent...

Journal: :Cold Spring Harbor symposia on quantitative biology 2006
I J Macrae F Li K Zhou W Z Cande J A Doudna

Dicer is a specialized ribonuclease that processes double-stranded RNA (dsRNA) into small RNA fragments about 25 nucleotides in length during the initiation phase of RNA interference (RNAi). We previously determined the crystal structure of a Dicer enzyme from the diplomonad Giardia intestinalis and proposed a structural model for dsRNA processing. Here, we provide evidence that Dicer is compos...

Journal: :Current Biology 2011
Ryoma Kamikawa Yuji Inagaki Masaharu Tokoro Andrew J. Roger Tetsuo Hashimoto

Spliceosomal introns are hallmarks of most eukaryotic genomes and are excised from premature mRNAs by a spliceosome that is among the largest, and most complex, molecular machine in cells. The divergent unicellular eukaryote Giardia intestinalis, the causative agent of giardiasis, also possesses spliceosomes, but only four canonical (cis-spliced) introns have been identified in its genome to da...

Journal: :Acta microbiologica Polonica 2003
Edward Siński

In the present paper some aspects of the biology and various factors influencing the potential for environmental contamination with protozoan parasites infective stages implicated in water and foodborne diseases are described. The major protozoan species that affect humans are Entamoeba histolytica, Acanthamoeba sp., Neagleria sp. Giardia intestinalis, Cryptosporidium parvum, Cyclospora cayetan...

2010
Aparajita Chatterjee Andrea Carpentieri Daniel M. Ratner Esther Bullitt Catherine E. Costello Phillips W. Robbins John Samuelson

The infectious and diagnostic stage of Giardia lamblia (also known as G. intestinalis or G. duodenalis) is the cyst. The Giardia cyst wall contains fibrils of a unique beta-1,3-linked N-acetylgalactosamine (GalNAc) homopolymer and at least three cyst wall proteins (CWPs) composed of Leu-rich repeats (CWP(LRR)) and a C-terminal conserved Cys-rich region (CWP(CRR)). Our goals were to dissect the ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Pavel Dolezal Ondrej Smíd Petr Rada Zuzana Zubácová Dejan Bursać Robert Suták Jana Nebesárová Trevor Lithgow Jan Tachezy

Mitochondria are archetypal organelles of endosymbiotic origin in eukaryotic cells. Some unicellular eukaryotes (protists) were considered to be primarily amitochondrial organisms that diverged from the eukaryotic lineage before the acquisition of the premitochondrial endosymbiont, but their amitochondrial status was recently challenged by the discovery of mitochondria-like double membrane-boun...

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