| entamoeba histolytica: deletion of the gpi anchor signal sequence on the gal/galnac lectin light subunit prevents its assembly into the lectin heterodimer. | adherence and cytotoxicity of entamoeba histolytica require the function of a heterodimeric galactose and n-acetylgalactosamine (gal/galnac)-specific lectin. the lectin heavy subunit (hgl) contains a carbohydrate recognition domain and mediates inside-out cell signaling via its cytoplasmic tail. the function of the lectin light subunit (lgl) is unknown. the lectin has a unique mechanism of membrane association: hgl is transmembrane but lgl is glycosylphosphatidylinositol (gpi) anchored. the role ... | 2000 | 11038322 |
| identification of two entamoeba histolytica sequence-specific ure4 enhancer-binding proteins with homology to the rna-binding motif rrm. | to study transcriptional regulation in the lower branching eukaryote entamoeba histolytica, we have identified two sequence-specific dna-binding proteins that recognize the upstream regulatory element ure4, an enhancer that regulates expression of the gal/galnac lectin heavy subunit gene hgl5. a chromatographic purification of e. histolytica nuclear extracts by gel filtration, cation exchange, and sequence-specific dna affinity chromatography led to a 700-fold increase in ure4 binding activity a ... | 2001 | 11038357 |
| [amebiasis]. | | 2000 | 11043054 |
| outbreak of amebiasis in a family in the netherlands. | human-to-human transmission of entamoeba histolytica is rare in industrialized countries. we describe an outbreak of amebiasis in a family in the netherlands, demonstrating that even with western standards of hygiene, persistent cyst passage may result in the transmission of e. histolytica to household contacts. if e. histolytica is isolated from a person living in an area of nonendemicity, it may be worthwhile to test all family members for cyst passage. | 2000 | 11049797 |
| entamoeba histolytica: diminution of erythrophagocytosis, phospholipase a(2), and hemolytic activities is related to virulence impairment in long-term axenic cultures. | | 2000 | 11052870 |
| synthesis and antiamoebic activity of new cyclooctadiene ruthenium(ii) complexes with 2-acetylpyridine and benzimidazole derivatives. | reaction of [ru(eta4-c8h12) (ch3cn)2 cl2] with 2-(2-pyridyl) benzimidazole or schiff bases derived from 2-acetylpyridine and s-methyldithiocarbazate, s-benzyldithiocarbazate and thiosemicarbazide leads to form new complexes of the type [ru(eta4-c8h12)(l)cl2] (where l=ligand). in vitro, most of the compounds exhibited potent activity and the ru derivatives 1a [ru(eta4-c8h12)(2-acpy-smdt)cl2], 2a [ru(eta4-c8h12)(2-acpy-sbdt)cl2] and 3a [ru(eta4-csh12)(2-acpy-tsc)cl2] were found more active than me ... | 2000 | 11055329 |
| characteristics of serine acetyltransferase from escherichia coli deleting different lengths of amino acid residues from the c-terminus. | some properties of serine acetyltransferases (sats) from escherichia coli, deleting 10-25 amino acid residues from the c-terminus (satdeltac10-deltac25) were investigated. the specific activity depended only slightly on the length of the c-terminal region deleted. although the sensitivity of satdeltac10 to inhibition by l-cysteine was similar to that for the wild-type sat, it became less with further increases in the length of the amino acid residues deleted. satdeltac10 was inactivated on cooli ... | 2000 | 11055390 |
| intestinal amoebiasis: delayed-type hypersensitivity response in mice. | delayed-type hypersensitive (dth) response was evaluated in c3h/hej mice intestinally infected with entamoeba histolytica. infected and non-infected control mice were challenged with amoebic antigen on day 5, 10, 15, 20, 25, 30, 40, 50, and 60 post-infection. maximum footpad swelling was observed after 24 hours of the challenge. the e. histolytica-infected mice exhibited a dth response on day 5, 15, 20, 25, 40 and 60 post-infection. however, on day 10, 30, and 50, such response was similar to th ... | 2000 | 11057067 |
| arbitrarily primed pcr fingerprinting of rna and dna in entamoeba histolytica. | differences were detected in the gene expression of strains of e. histolytica using rna (rap-pcr) and dna fingerprinting (rapd). analysis of the electrophoretic profiles of the gels revealed some polymorphic markers that could be used in the individual characterization of the strains. the 260 bands generated by using five different primers for rap-pcr, as well as rapd, were employed in the construction of dendograms. the dendogram obtained based on the rapd products permitted the distinction of ... | 2000 | 11058934 |
| early lateral transfer of genes encoding malic enzyme, acetyl-coa synthetase and alcohol dehydrogenases from anaerobic prokaryotes to entamoeba histolytica. | the fermentation enzymes, which enable the microaerophilic protist entamoeba histolytica to parasitize the colonic lumen and tissue abscesses, closely resemble homologues in anaerobic prokaryotes. here, genes encoding malic enzyme and acetyl-coa synthetase (nucleoside diphosphate forming) were cloned from e. histolytica, and their evolutionary origins, as well as those encoding two alcohol dehydrogenases (adhe and adh1), were inferred by means of phylogenetic reconstruction. the e. histolytica m ... | 2000 | 11069669 |
| iron hydrogenases and the evolution of anaerobic eukaryotes. | hydrogenases, oxygen-sensitive enzymes that can make hydrogen gas, are key to the function of hydrogen-producing organelles (hydrogenosomes), which occur in anaerobic protozoa scattered throughout the eukaryotic tree. hydrogenases also play a central role in the hydrogen and syntrophic hypotheses for eukaryogenesis. here, we show that sequences related to iron-only hydrogenases ([fe] hydrogenases) are more widely distributed among eukaryotes than reports of hydrogen production have suggested. ge ... | 2000 | 11070057 |
| reincidence of amebic liver abscess: a case report. | | 2000 | 11070200 |
| a new approach for chemotherapy against entamoeba histolytica. | | 2000 | 11070202 |
| effect of cyclosporine a on entamoeba histolytica. | | 2000 | 11070203 |
| phagocytosis of quinfamide particles by entamoeba histolytica. | | 2000 | 11070204 |
| in vivo inhibition of reduced thiol compounds from entamoeba histolytica hk9 by phenothiazines and related tricyclic drugs. | | 2000 | 11070205 |
| antiamebic activity of aqueous extracts from five medicinal plants from northeastern mexico. | | 2000 | 11070206 |
| antiamebic activity of the metronidazole-zinc association. | | 2000 | 11070207 |
| characterization of plasma membrane-associated antigens of diagnostic and prophylactic importance in entamoeba histolytica. | | 2000 | 11070208 |
| antibodies against entamoeba histolytica hemolysin hly4 in sera from patients with invasive amebiasis. | | 2000 | 11070209 |
| diagnostic tests using idiotype expression in amebiasis. | | 2000 | 11070210 |
| systemic antiamebic antibodies induced orally in mice: detection by an elisa test using preserved entamoeba histolytica-antigens without enzymatic inhibitors. | | 2000 | 11070211 |
| a simple stool concentration method for the detection and preservation of the vegetative forms of entamoeba histolytica/entamoeba dispar. | | 2000 | 11070212 |
| cytological and immunological methods to identify entamoeba histolytica and entamoeba dispar trophozoites in patients from guanajuato, mexico. | | 2000 | 11070213 |
| prevalence of entamoeba histolytica and entamoeba dispar in a highly endemic rural population. | | 2000 | 11070214 |
| differentiation of entamoeba histolytica and entamoeba dispar using pcr-shela and comparison of antibody response. | | 2000 | 11070218 |
| incidence of entamoeba histolytica/entamoeba dispar in international travelers, extracommunitary immigrants, and adopted children. | | 2000 | 11070219 |
| purification and biochemical characterization of three cysteine proteases of entamoeba histolytica with potential application in epidemiologic trials. | | 2000 | 11070220 |
| seroprevalence of anti-entamoeba histolytica antibodies by iha and elisa assays in blood donors from puebla, mexico. | | 2000 | 11070221 |
| determination of entamoeba histolytica and entamoeba dispar infection by enzyme-linked immunosorbent assay (elisa) and its clinical correlation in pediatric patients. | | 2000 | 11070222 |
| calcium binding protein of entamoeba histolytica. | | 2000 | 11070223 |
| autokinase activities in entamoeba histolytica induced by extracellular matrix components. | | 2000 | 11070224 |
| homology modeling of entamoeba histolytica cysteine proteinases reveals the basis for cathepsin l-like structure with cathepsin b-like specificity. | | 2000 | 11070225 |
| the occurrence of a tripeptidyl peptidase i in trophozoites of entamoeba histolytica. | | 2000 | 11070227 |
| lipophosphopeptidoglycan of entamoeba histolytica induces an antiinflammatory innate immune response and downregulation of toll-like receptor 2 (tlr-2) gene expression in human monocytes. | | 2000 | 11070229 |
| production of prostaglandin e(2) by entamoeba histolytica via a novel cyclooxygenase. | | 2000 | 11070230 |
| isolation and structural studies of the monocyte locomotion inhibitory factor (mlif) produced by entamoeba histolytica. | | 2000 | 11070231 |
| modulated tgf-beta response in the hamster model in response to immunization with the recombinant l1b protein from entamoeba histolytica. | | 2000 | 11070233 |
| compartmentalization of the intestinal antiamebic immune response in balb/c mice: effect of cholera toxin coadministration. | | 2000 | 11070234 |
| the effect of the monocyte locomotion inhibitory factor (mlif) produced by entamoeba histolytica upon nitric oxide production by human leukocytes. | | 2000 | 11070237 |
| effect of the monocyte locomotion inhibitory factor (mlif) produced by entamoeba histolytica on the expression of cell adhesion molecules (cams) in the skin of guinea pigs. | | 2000 | 11070238 |
| does entamoeba dispar produce monocyte locomotion inhibitory factor (mlif) like entamoeba histolytica? | | 2000 | 11070239 |
| amebic lectin stimulation of lymphocytes of mexican mestizos recovered from amebic abscess of the liver induces decreased production of il5 and il6. | | 2000 | 11070240 |
| parasite evasion mechanism altered by zinc in entamoeba histolytica. | | 2000 | 11070244 |
| induction of protective immunity against experimental amebic abscess of the liver (eaal) using the monocyte locomotion inhibitory factor (mlif) produced by entamoeba histolytica: a preliminary report. | | 2000 | 11070246 |
| effect of immunization with glutaraldehyde-fixed entamoeba histolytica trophozoites on the proportions of iga, igm, and igg b lymphocytes in the large and small intestine from balb/c mice. | | 2000 | 11070247 |
| metronidazole and mebendazole pretreatments suppress the antiamebic recognition of lamina propia lymphocyte supernatants from the small and large intestine in intraperitoneally immunized balb/c mice. | | 2000 | 11070248 |
| effect of the prostaglandin analogue misoprostol on resistance to entamoeba histolytica infection in balb/c mice. | | 2000 | 11070249 |
| entamoeba histolytica induces cyclooxygenase-2 expression in macrophages during amebic liver abscess formation. | | 2000 | 11070250 |
| do entamoeba histolytica trophozoites signal via enteric microvilli? | | 2000 | 11070251 |
| signal transduction pathways in entamoeba histolytica: pka activity and translocation during the interaction of trophozoites with fn. | | 2000 | 11070252 |
| distribution of a potential p21-activated serine/threonine kinase (pak) in entamoeba histolytica. | | 2000 | 11070253 |
| actin stress fibers in entamoeba histolytica induced by fibronectin. | | 2000 | 11070254 |
| cytoskeleton activities during the interaction of entamoeba histolytica with epithelial cells. | | 2000 | 11070255 |
| the diaphanous protein from entamoeba histolytica controls cell motility and cytokinesis. | | 2000 | 11070256 |
| the interplay between receptor capping and cytoskeleton remodeling in entamoeba histolytica. | | 2000 | 11070257 |
| immunolocalization of clathrin during electron-dense granule secretion in entamoeba histolytica. | | 2000 | 11070258 |
| growth inhibition and actin aggregate formation of entamoeba histolytica by jasplakinolide. | | 2000 | 11070259 |
| monoclonal antibody specific to the beta1 integrin-like molecule (140 kda) immunoprecipitates a protein complex of entamoeba histolytica. | | 2000 | 11070260 |
| identification of collagen-binding proteins from the cytoplasmic membrane of entamoeba histolytica. | | 2000 | 11070261 |
| molecular genetics of the secretory pathway in entamoeba histolytica: an overview. | | 2000 | 11070262 |
| secretory pathway activation by interaction of entamoeba histolytica trophozoites with fibronectin. | | 2000 | 11070263 |
| identification and characterizaton of a rab5 homologue in entamoeba histolytica. | | 2000 | 11070264 |
| rab8 as a molecular model of vesicular trafficking to investigate the latter steps of the secretory pathway in entamoeba histolytica. | | 2000 | 11070265 |
| entamoeba histolytica contains a ter-atpase. | | 2000 | 11070266 |
| cloning of the entamoeba histolytica stt3 gene, a subunit of the oligosaccharyltransferase complex. | | 2000 | 11070267 |
| ultrastructural evidence of smooth endoplasmic reticulum and golgi-like elements in entamoeba histolytica and entamoeba dispar. | | 2000 | 11070268 |
| entamoeba histolytica codes for a protein homologue of the sec61 alpha subunit, a component of the endoplasmic reticulum translocon. | | 2000 | 11070269 |
| characterization of the ehrabb recombinant protein of entamoeba histolytica. | | 2000 | 11070270 |
| molecular cloning of a gene encoding a pdi-like protein from entamoeba histolytica. | | 2000 | 11070271 |
| a mitochondrial-type hsp70 gene of entamoeba histolytica. | | 2000 | 11070272 |
| cellular and biochemical analysis of phagocytosis in entamoeba histolytica. | | 2000 | 11070273 |
| digestion of erythrocytes by entamoeba histolytica. correlative study with scanning electron microscopy and polyacrylamide gel electrophoresis. | | 2000 | 11070274 |
| subcellular distribution and in situ localization of the acid phosphatase of entamoeba histolytica. | | 2000 | 11070275 |
| identification of seven chemical factors that favor high-quality entamoeba histolytica cyst-like structure formation under axenic conditions. | | 2000 | 11070279 |
| the chromosomes of entamoeba histolytica. | | 2000 | 11070284 |
| structural organization of gamma-tubulin in the microtubule organizing center (mtoc) during the nuclear division of entamoeba histolytica trophozoites. | | 2000 | 11070285 |
| centromeric structure identification in entamoeba histolytica by anticentromeric/kinetochore antibodies obtained from patients with the crest syndrome. | | 2000 | 11070286 |
| entamoeba histolytica is unable to use free cholesterol, phospholipids, and fatty acids under axenic cultivation conditions. | | 2000 | 11070288 |
| pathogenesis of entamoeba histolytica depends on the concerted action of numerous virulence factors. | | 2000 | 11070289 |
| role of host caspases in cell killing by entamoeba histolytica. | | 2000 | 11070290 |
| disturbance of tight junctions by entamoeba histolytica: resistant vertebrate cell types and incompetent trophozoites. | | 2000 | 11070291 |
| novel thermo-stable serine-metallo proteinase of entamoeba histolytica. | | 2000 | 11070292 |
| entamoeba histolytica cysteine proteinases degrade human colonic mucin and alter its function. | | 2000 | 11070293 |
| role of excretory-secretory products of entamoeba histolytica in human amebiasis. | | 2000 | 11070294 |
| role of the entamoeba histolytica gal/galnac lectin in recruiting proteins to the host:parasite interface. | | 2000 | 11070295 |
| binding of the galactose-specific lectin of entamoeba histolytica to hamster hepatocyte primary cultures. | | 2000 | 11070296 |
| l6: a proteinase- and phagocytosis-deficient mutant of entamoeba histolytica. | | 2000 | 11070298 |
| does the light subunit of the gal/galnac specific lectin have a role in the virulence of entamoeba histolytica? | | 2000 | 11070299 |
| entamoeba histolytica: localization of the gal/galnac adherence lectin in experimental amebic liver abscess. | | 2000 | 11070300 |
| animal model of noninvasive entamoeba histolytica infection. | | 2000 | 11070301 |
| characterization of entamoeba histolytica and entamoeba dispar by biological, biochemical, and molecular parameters. | | 2000 | 11070303 |
| morphological changes of mouse liver infected with trophozoites of entamoeba histolytica. | | 2000 | 11070304 |
| genetic differences between entamoeba histolytica and entamoeba dispar. | | 2000 | 11070305 |
| polymorphic dna markers in entamoeba histolytica. | | 2000 | 11070306 |
| rdna variability in strains of entamoeba histolytica and entamoeba dispar. | | 2000 | 11070307 |
| dna sequences homologous to interspersed element of entamoeba histolytica are present in entamoeba dispar. | | 2000 | 11070308 |
| genomic organization of a 7 kb gene cluster from entamoeba histolytica. | | 2000 | 11070309 |
| characterization of a retrotransposon-like repetitive dna in entamoeba histolytica. | | 2000 | 11070310 |
| mcm proteins of entamoeba histolytica. | | 2000 | 11070311 |