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Entamoeba histolytica

Amoebiasis due to Entamoeba histolytica

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	Entamoeba histolytica (amoebiasis, amoebic dysentery) (Site not responding. Last check: 2007-10-22)
		The life cycle of Entamoeba histolytica involves trophozoites (the feeding stage of the parasite) that live in the host's large intestine and cysts that are passed in the host's feces.
		Humans are infected by ingesting cysts, most often via food or water contaminated with human fecal material (view diagram of the life cycle).
		The single nucleus with its central endosome and regularly distributed chromatin is visible; approximate size = 22 µm.
	www.biosci.ohio-state.edu /~parasite/ehistolytica.html (310 words)

	Molecular and biochemical characterization of D-phosphoglycerate dehydrogenase from Entamoeba histolytica: A unique ... (Site not responding. Last check: 2007-10-22)
		the enteric protozoan parasite Entamoeba histolytica was characterized.
		Entamoeba histolytica is the enteric protozoan parasite that
		-glycerate dehydrogenase from the enteric parasitic protist Entamoeba histolytica.
	content.febsjournal.org /cgi/content/full/271/13/2670 (5992 words)

	Intestinal Protozoa Review Notes (Site not responding. Last check: 2007-10-22)
		The cyst of Entamoeba histolytica is the form of the organism that survives in the environment. It is acquired by ingestion via the fecal/oral route.
		The cyst of Entamoeba histolytica is resistant to chlorine and cold water. It is killed by heat and desiccation and removed by filtration.
		The trophozoite of Entamoeba histolytica ingests RBCs (pathognomonic).
	www.ratsteachmicro.com /Intestinal_Protozoa_notes/HCOE_CAI_Review_Notes_Intestinal_Protozoa.htm (1431 words)

	Entamoeba -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		The entamoebae are a group of parasitic and commensal (Naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion) amoebae which lack (Click link for more info and facts about mitochondria) mitochondria.
		Studies show the entamoebae are close relatives of the (Click link for more info and facts about pelobiont) pelobionts, another group of amitochondriate amoebae, but unlike them retain (A net-like structure in the cytoplasm of animal cells (especially in those cells that produce secretions)) dictyosomes.
		David Biron of The Weizmann Institute of Science and coworkers found that about one third of Entamoeba invadens cells are unable to separate unaided and recruit a neighboring amoeba (dubbed the "midwife") to complete the fission.
	www.absoluteastronomy.com /encyclopedia/e/en/entamoeba.htm (313 words)

	Entamoeba Basics (Site not responding. Last check: 2007-10-22)
		Parasites assigned to the genus Entamoeba are single celled eukaryotes and parasitise all classes of vertebrates, a few invertebrates and possibly other unicellular eukaryotes also.
		Entamoeba histolytica is the third leading cause of morbidity and mortality due to parasitic disease in humans (after malaria and schistosomiasis) and is estimated to be responsible for between 50,000 and 100,000 deaths every year.
		Differentiation among species of Entamoeba is clearly important for accurate diagnosis of individuals at risk and to prevent unnecessary or inappropriate chemotherapy.
	homepages.lshtm.ac.uk /entamoeba/basics.htm (482 words)

	Entamoeba
		Entamoeba gingivalis infects the mouths of humans, another relative Entamoeba dispar colonises the gut of many more people than E.
		Wassmann, C., Hellberg, A., Tannich, E. and Bruchhaus, I. (1999) Metronidazole resistance in the protozoan parasite Entamoeba histolytica is associated with increased expression of iron-containing superoxide dismutase and peroxiredoxin and decreased expression of ferredoxin 1 and flavin reductase., J.Biol.Chem.
		Guillén, N. (1996) Role of signalling and cytoskeletal rearrangement in the pathogenesis of Entamoeba histolytica.
	www.bms.ed.ac.uk /research/others/smaciver/entamoeba.htm (1527 words)

	Antisense Inhibition of Expression of Cysteine Proteinases Affects Entamoeba histolytica-Induced Formation of Liver ...
		Trophozoites of virulent Entamoeba histolytica transfected with the antisense gene encoding cysteine proteinase 5 (CP5) have
		of pathogenic Entamoeba histolytica strains (9, 12, 15).
		Entamoeba histolytica: increase of enterotoxicity and of 53- and 75-kDa cysteine proteinases in a clone of higher virulence.
	iai.asm.org /cgi/content/full/67/1/421 (1580 words)

	Preparation of Recombinant Human Monoclonal Antibody Fab Fragments Specific for Entamoeba histolytica -- Tachibana et ...
		Differentiation of pathogenic Entamoeba histolytica infections from nonpathogenic infections by detection of galactose-inhibitable adherence protein antigen in sera and feces.
		Diagnosis of amebic dysentery by detection of Entamoeba histolytica fecal antigen by an invasive strain-specific, monoclonal antibody-based enzyme-linked immunosorbent assay.
		Bacterial expression of a neutralizing mouse monoclonal antibody Fab fragment to a 150-kilodalton surface antigen of Entamoeba histolytica.
	cdli.asm.org /cgi/content/full/6/3/383 (2616 words)

	Samuel Leonard Stanley, Jr.
		Use of a recombinant 170 kDa surface antigen of Entamoeba histolytica in serodiagnosis of amebiasis, and identification of immunodominant domains of the native molecule.
		Expression of a recombinant Entamoeba histolytica antigen in a Salmonella typhimurium vaccine strain.
		Entamoeba histolytica induces host cell death in amebic liver abscess by a non-Fas, non-TNF?-dependent pathway of apoptosis.
	www.microbiology.wustl.edu /dept/fac/stanley.html (2266 words)

	Introduction To The Entamoeba Species (Site not responding. Last check: 2007-10-22)
		Differentiation between the Entamoeba species is based on a number of factors and characteristics.
		Entamoeba histolytica, is the causative agent of amebic dysentery and amebic liver abscess.
		Finding of any other Entamoeba species organisms should be considered an indicator of fecal contamination.
	www.practicalscience.com /introentamoeba.html (271 words)

	txt001wpc: Molecular-based diagnosis of Entamoeba histolytica infection
		(1993) Differentiation of pathogenic Entamoeba histolytica infections from nonpathogenic infections by detection of galactose-inhibitable adherence protein antigen in sera and feces.
		(1996) Seroepidemiology of Entamoeba histolytica in a slum in northeastern Brazil.
		Ravdin, J.I. and Petri, W.A. Entamoeba histolytica (Amebiasis).
	www-ermm.cbcu.cam.ac.uk /99000599h.htm (4507 words)

	Entamoeba (Site not responding. Last check: 2007-10-22)
		The entamoebae are a group of parasitic and commensal amoebae which lack mitochondria.
		They include several species that are pathenogenic in humans, most notably Entamoeba histolytica, which causes amoebic dysentery.
		Studies show the entamoebae are close relatives of the pelobionts, another group of amitochondriate amoebae, but unlike them retain dictyosomes.
	www.yotor.com /wiki/en/en/Entamoeba.htm (216 words)

	The Entamoeba histolytica Genome Database
		Entamoeba histolytica is an early branching human enteric parasite that infects an estimated 500 million people and is a significant cause of morbidity and mortality.
		TIGR is funded by the National Institute of Allergy and Infectious Diseases (NIAID) to implement a large scale sequencing project of Entamoeba histolytica.
		Because of the medical importance of amebae and their unique biology, the goal of this project is to determine 99% of the genomic sequence of E.
	www.tigr.org /tdb/edb2/enta/htmls (179 words)

	Mitosomes of Entamoeba histolytica are abundant mitochondrion-related remnant organelles that lack a detectable ...
		Mitosomes of Entamoeba histolytica are abundant mitochondrion-related remnant organelles that lack a detectable organellar genome -- León-Avila and Tovar 150 (5): 1245 -- Microbiology
		Mitosomes of Entamoeba histolytica are abundant mitochondrion-related remnant organelles that lack a detectable organellar genome
		Marchat, L. A., Pezet-Valdez, M., Lopez-Camarillo, C. and Orozco, E. Entamoeba histolytica: expression and DNA binding of CCAAT/enhancer-binding proteins are regulated through the cell cycle.
	mic.sgmjournals.org /cgi/content/full/150/5/1245 (2937 words)

	Transcriptional Silencing of an Amoebapore Gene in Entamoeba histolytica: Molecular Analysis and Effect on ...
		Inhibition of expression of the lysine-rich 30 kDa surface antigen of Entamoeba dispar by the transcription of its antisense RNA.
		Adherence and ingestion of Escherichia coli serotype 055 by trophozoites of Entamoeba histolytica.
		Antisense inhibition of amoebapore expression in Entamoeba histolytica causes a decrease in amoebic virulence.
	ec.asm.org /cgi/content/full/2/2/295 (7078 words)

	CDC - Entamoeba moshkovskii Infections in Children in Bangladesh
		Entamoeba moshkovskii, considered to be primarily a free-living amoeba, is indistinguishable in its cyst and trophozoite forms from E.
		Diagnosis of pathogenic Entamoeba histolytica infection using a stool ELISA based on monoclonal antibodies to the galactose-specific adhesin.
		Rapid diagnosis of Entamoeba infection by using Entamoeba and Entamoeba histolytica stool antigen detection kits.
	www.cdc.gov /ncidod/EID/vol9no5/02-0548.htm (2481 words)

	Myosin IB from Entamoeba histolytica is involved in phagocytosis of human erythrocytes -- Voigt et al. 112 (8): 1191 -- ...
		Myosin IB from Entamoeba histolytica is involved in phagocytosis of human erythrocytes -- Voigt et al.
		Myosin IB from Entamoeba histolytica is involved in phagocytosis of human erythrocytes
		Entamoeba histolytica is a protozoan parasite that causes amoebic dysentery
	jcs.biologists.org /cgi/content/abstract/112/8/1191 (512 words)

	Search Results for entamoeba - Encyclopædia Britannica
		Three types of pseudopodia (cytoplasmic extensions) used in locomotion and digestion are found in members of this superclass: (1) long, thin...
		Entamoeba histolytica is another parasite that causes acute and chronic infections, traditionally in the tropics.
		The well-known type species, Amoeba proteus, is found on decaying bottom vegetation of freshwater streams and ponds.
	www.britannica.com /search?query=entamoeba&submit=Find&source=MWTEXT (366 words)

	Diagnose-Me: Condition: Entamoeba Infection
		Entamoeba Histolytica can cause a severe form of dysentery which can be lethal, particularly if it invades the lungs, liver or brain.
		Of these Entamoeba histolytica (Entamoeba dispar) are the only species found to be associated with intestinal disease.
		In a series of almost 200 patients treated for giardia or entamoeba histolytica by a Dr. Parish and his associates over a two month period, grapefruit seed extract gave symptomatic relief more than any other treatment that was tried.
	www.diagnose-me.com /cond/C173244.html (411 words)

	Detection of HIV-1 in Entamoeba histolytica without evidence of transmission to human cells.
		Detection of HIV-1 in Entamoeba histolytica without evidence of transmission to human cells.
		Intestinal protozoa like Entamoeba histolytica and Giardia lamblia have been proposed as vectors or cofactors in the development of AIDS.
		Entamoeba histolytica, but not Giardia lamblia, took up virus.
	www.aegis.com /aidsline/1991/oct/M91A0894.html (391 words)

	PMBU: PMBU Research - Intestinal Protozoa
		The most important of these is Entamoeba histolytica which causes amoebic dysentery and liver abscess and may be responsible for up to 100,000 deaths annually.
		Various aspects of the genetics, cell biology, epidemiology and evolution of this organism and other species of the genus Entamoeba are studied in the laboratories of Dr. Graham Clark and Professor John Ackers.
		The mitosome, a mitochondrial relic in Entamoeba histolytica
	www.lshtm.ac.uk /pmbu/research/parasites/protozoa.html (180 words)

	Entamoeba coli (Site not responding. Last check: 2007-10-22)
		Entamoeba coli is a commensal of the human large intestine, but it looks much like Entamoeba histolytica (a potential pathogen).
		If someone is infected with this organism, it means they have been (or are currently being) exposed to human fecal material.
		Entamoeba coli is not the "E. coli" that humans can get from eating raw or undercooked meat and that has been associated with a number of human fatalities in the past few years.
	www.biosci.ohio-state.edu /~parasite/ecoli.html (175 words)

	Amoebiasis is an infection by the intestinal protozoan Entamoeba histolytica... (Site not responding. Last check: 2007-10-22)
		Amoebiasis is an infection by the intestinal protozoan Entamoeba histolytica...
		About 90% of the infections are asymptomatic and the remaining 10% produce a spectrum of clinical syndromes ranging from dysentery to abscess of liver or other organs1.
		In contrast, the non-pathogenic strain such as Entamoeba dispar, which is a non-invasive strain, is rapidly lysed by complement, and is therefore restricted to bowel lumen.
	www.indegene.com /Nep/FeatArt/indNepFeatArt16.html (3658 words)

	Genetic Variation among Human Isolates of Uninucleated Cyst-Producing Entamoeba Species -- Verweij et al. 39 (4): 1644 ...
		Phylogeny of the genera Entamoeba and Endolimax as deduced from small-subunit ribosomal RNA sequences.
		Differentiation of Entamoeba histolytica and Entamoeba dispar cysts using polymerase chain reaction on DNA isolated from faeces with spin columns.
		Differentiation of Entamoeba histolytica and Entamoeba dispar using PCR-SHELA and comparison of antibody response.
	jcm.asm.org /cgi/content/full/39/4/1644 (1202 words)

	Medmicro Chapter 79
		A second pathogen of the human colon is Dientamoeba fragilis, which looks like an ameba under the light microscope, and was classified as a true ameba for many years, but which is now identified as a flagellate.
		Leippe M, Muller-Eberhard H: The pore-forming peptide of Entamoeba histolytica, the protozoan parasite causing human amoebiasis.
		Mirelman D, Bracha R, Wexler A, et al: Entamoeba histolytica: Effect of growth conditions and bacterial associates on isoenzyme patterns and virulence.
	gsbs.utmb.edu /microbook/ch079.htm (3761 words)

	References (Site not responding. Last check: 2007-10-22)
		A nested, multiplex, PCR assay for the simultaneous detection and differentiation of Entamoeba histolytica and Entamoeba dispar in faeces.
		Entamoeba histolytica and Entamoeba dispar are distinct species; clinical, epidemiological and serological evidence.
		Rapid diagnosis of Entamoeba infection by using Entamoeba and Entamoeba histolytica stool antigen kits.
	www.medscape.com /content/2004/00/49/02/490286/490286_ref.html (294 words)

	Inhibition of gene expression in Entamoeba histolytica with antisense peptide nucleic acid oligomers - Nature ... (Site not responding. Last check: 2007-10-22)
		One such organism is Entamoeba histolytica, the causative agent of amebiasis, which infects about 500 million people and is the cause of clinical disease in over 40 million each year, mainly in the tropical and subtropical world.
		López-Revilla, R. and Gomez, R. Entamoeba histolytica, E. invadens, and E. moshkovskii: fluctuation of the DNA content of axenic trophozoites.
		Cloning and expression of the Entamoeba histolytica Erd2 gene.
	www.nature.com /cgi-taf/DynaPage.taf?file=/nbt/journal/v19/n3/full/nbt0301_231.html (3358 words)

	EMBO Workshop
		Epigenetic gene silencing in the protozoan parasite Entamoeba histolytica
		Is EhkO, the Entamoeba histolytica DNA containing organelle, related to the E.
		Entamoeba histolytica: cysteine proteinase activity is required for survival of the parasite in experimental acute amoebic liver abcesses in hamsters
	www.pasteur.fr /infosci/conf/amoebiasis (396 words)

	The Sanger Institute: Entamoeba histolytica (Site not responding. Last check: 2007-10-22)
		Permission of the principal investigator should be obtained before publishing analyses of the sequence/open reading frames/genes on a chromosome or genome scale.
		Entamoeba histolytica is the causal agent of amoebic dysentery and amoebic liver abscess.
		With an estimated 40 million cases worldwide and 100,000 deaths, it is responsible for agreat deal of suffering, particularly in the developing world.
	www.sanger.ac.uk /Projects/E_histolytica (328 words)

	Real-Time PCR for Detection and Differentiation of Entamoeba histolytica and Entamoeba dispar in Fecal Samples -- ...
		The intestinal protozoan parasite Entamoeba histolytica is endemic
		Ribosomal RNA genes of ‘pathogenic’ and ‘nonpathogenic’ Entamoeba histolytica are distinct.
		The differentiation of invasive and non-invasive Entamoeba histolytica by isoenzyme electrophoresis.
	jcm.asm.org /cgi/content/full/40/12/4413 (3370 words)

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