| interrelationship of ph and oxidation-reduction potential on growth of axenic entamoeba histolytica and the influence of ph on amoebicidal activity of drugs. | | 1976 | 5371 |
| ph and entamoeba histolytica. | | 1977 | 24290 |
| chemotherapeutically acitve nitro compounds. 4. 5-nitroimidazoles (part iii). | more than 100 1-methyl-5-nitroimidazoles substituted in the 2-position via an oxymethyl group were synthesized and their structure-activity relationship toward various protozoa was investigated. among the derivatives substituted with an aromatic radical there are most of the compounds which are highly effective against trichomonads; 9 preparations are superior to tinidazole and 29 are superior to metronidazole in mice infected with trichomonas fetus, and 9 compounds exhibit a better effect than ... | 1978 | 107955 |
| pathogenic entamoeba histolytica. | | 1979 | 86761 |
| pathogenic entamoeba histolytica. | | 1979 | 84952 |
| fractionation and serological characterization of entamoeba histolytica antigen. | | 1977 | 84508 |
| dynamics of the interaction between entamoeba histolytica and components of the immune response. i. capping and endocytosis; influence of inhibiting and accelerating factors; variation of the expression of surface antigens. | the possible implications of cell membrane dynamics in the host--parasite relationship has been studied. entamoeba histolytica rapidly redistributed and internalized antibodies and con a bound to its surface. the process was dependent on temperature, cell metabolism and changes of ph in the environment. phagocytizing amoebae displayed a higher rate of membrane perturbations, which were similarly affected by temperature, cell metabolism and ph variations. cytochalasin b partially inhibited the re ... | 1978 | 76334 |
| immunoperoxidase staining of e. histolytica and soil amebas in formalin-fixed tissue. | | 1977 | 71856 |
| [unified methods of laboratory studies. clinical laboratory parasitology. methods of examination of biological material for the presence of protozoa]. | | 1977 | 71390 |
| [trials with axenic culture of entamoeba histolytica (schaudinn 1903) (author's transl)]. | | 1975 | 52411 |
| travelers' diarrhea and toxigenic escherichia coli. | in a group of 133 united states students studied for 18 days after arriving in mexico, diarrhea developed in 38 (29 per cent). diarrhea rarely began before the fourth day, and the mean onset was 13 days after arrival. symptoms lasted an average of 3.4 days but persisted in 21 per cent of sick students. heat-labile enterotoxin-producing escheria coli was found in the stools of 72 per cent of sick and 15 per cent of healthy students. none had heat-labile esch. coli when they entered mexico. the in ... | 1975 | 163964 |
| antigenicity of sub-cellular components of entamoeba histolytica. | antigencity of the sub-cellular components of axenic entamoeba histolytica trophozoites was studied. the cells were disrupted by means of a glass-teflon homogeniser and sub-cellular components were prepared by stepwise differential centrifugation. four fractions were obtained, namely the 350 g, 6500 g, and 100,500 g fractions and the cell sap. components of the sedimented fractions were examined by phase contrast and electron microscopy. the antigenicity of each fraction was studied by two diffe ... | 1975 | 49931 |
| [the influence of cytochalasin b, colchicine, and vinblastine on the attachment of entamoeba histolytica to glass surfaces (author's transl)]. | the attachment of e. histolytica trophozoites from monoxenic tps-medium to glass surfaces was studied at different temperatures and ph values and in the presence of cytochalasin b, colchicine, and vinblastine. at ph 7.0 and at 36 degrees c optimal adhesion rates of the amebae were observed in the range from 80% to 95%. marked inhibition of adhesion was noted at higher concentrations of cytochalasin b. the adhesion rate was reduced to 50% by 50 micrograms/ml cb. higher dosages successively preven ... | 1979 | 44594 |
| influence of ph on the amoebicidal activity of systemically active amoebicides against axenic entamoeba histolytica. | | 1978 | 29834 |
| biological oxidations and flavoprotein catalysis in entamoeba histolytica. | | 1978 | 29583 |
| antiamoebic activity of drugs given singly and in combination against axenically grown entamoeba histolytica. | | 1978 | 29581 |
| membrane bound pyrophosphatases in entamoeba histolytica. | entamoeba histolytica homogenates are capable of hydrolyzing a range of inorganic and organic pyrophosphates. two separate activities are present: an inorganic pyrophosphatase hydrolyzing inorganic pyrophosphate and linear tripolyphosphate, and a nucleoside diphosphatase hydrolyzing thiamine pyrophosphate and nucleoside diphosphates (adp, gdp and udp). the inorganic pyrophosphatase has an acid ph optimum, a relatively high km (congurent to 1 micrometer) and is markedly heat stable and lacks a me ... | 1978 | 29580 |
| pyruvate-to-ethanol pathway in entamoeba histolytica. | the pyruvate-to-ethanol pathway in entamoeba histolytica is unusual when compared with most investigated organisms. pyruvate decarboxylase (ec 4.1.1.1), a key enzyme for ethanol production, is not found. pyruvate is converted into acetyl-coa and co2 by the enzyme pyruvate synthase (ec 1.2.7.1), which has been demonstrated previously in this parasitic amoeba. acetyl-coa is reduced to acetaldehyde and coa by the enzyme aldehyde dehydrogenase (acylating) (ec 1.2.1.10) at an enzyme activity of 9 uni ... | 1978 | 25658 |
| partial purification and some properties of a neutral sulfhydryl and an acid proteinase from entamoeba histolytica. | the partial purification of two intracellular proteinases from the protozoan parasite entamoeba histolytica is reported. one of these enzymes is an acid proteinase exhibiting maximum activity at ph 3.5 (hemoglobin substrate), is little affected by a range of inhibitors or activators, and is presumed to be similar to cathepsin d. also present is a neutral proteinase exhibiting optimum activity at ph 6.0 (azocasein) but only poorly hydrolyzing either hemoglobin or serum albumen. this latter enzyme ... | 1977 | 16691 |
| chemotherapeutic nitroheterocycles. 18. 2-(5-nitro-2-imidazolylmethylene)-1-indanones, -1-tetralones, and -acetophenones substituted by aminoalkoxy groups. | 2-(5-nitro-2-imidazolylmethylene)-1-indanones, -1-tetralones, and -acetophenones substituted by aminoalkoxy groups and related compounds (41-69, table ii) were synthesized and their antimicrobial activities were evaluated (table iii). some of these compounds (e.g. 47, 52, and 59) suprisingly exhibited a broad antibacterial spectrum including proteus species and pseudomonas aeruginosa. extraordinary antitrichomonal activities could also be observed in vitro (mic of compound 59, 0.0004 pg/ml) and ... | 1975 | 166185 |
| [amebicidal effect of entizol (metronidazole produced by polfa in poland)]. | | 1975 | 166521 |
| entamoeba histolytica: diaphorase activities. | | 1977 | 14017 |
| an energy-conserving pyruvate-to-acetate pathway in entamoeba histolytica. pyruvate synthase and a new acetate thiokinase. | under anaerobic conditions, cells of entamoeba histolytica grown with bacteria produce h2 and acetate while cells grown axenically produce neither. aerobically, acetate is produced and o2 is consumed by amebae from either type of cells. centrifuged extracts, 2.4 x 106 x g x min, from both types of cells contain pyruvate synthase (ec 1.2.7.1) and an acetate thiokinase which, together, form a system capable of converting pyruvate to acetate. pyruvate synthase catalyzes the reaction: pyruvate + coa ... | 1977 | 13076 |
| algorithms in the diagnosis and management of exotic diseases. xvii. amebiasis. | | 1976 | 12237 |
| epidemic of autochtonous hepatic and intestinal amebiasis in a place near grenoble. | we had the opportunity of studying an epidemic of autochthonous amoebiasis occurring in the autumn of 1974 in a small town of 4000 inhabitants 30 km from grenoble. attention was originally attracted by the occurrence in this town of two cases of hepatic amoebiasis and one of intestinal amoebiasis identified by rectoscopy. systematic investigations (coproctic examinations and serological tests for amoebiasis by indirect antibody fluorescence) were then carried out on everyone in the locality with ... | 1975 | 7124 |
| iron--sulfur proteins of entamoeba histolytica. | | 1976 | 3636 |
| multiple cerebral abscesses complicating hepatopulmonary amebiasis. | a 3-year-old boy with hepatopulmonary amebiasis treated with chloroquine phosphate for 20 days subsequently was found to have three brain abscesses and responded to prolonged combined therapy with metronidazole and chloroquine phosphate. cerebral amebiasis should be considered in any patient with amebic dysentery, hepatic abscess, or pulmonary involvement in whom signs or symptoms of central nervous system involvement appear. a prolonged course of appropriate therapy with periodic brain scanning ... | 1975 | 162956 |
| effects of parasitic infections in pregnant women. | this review focuses on the parasitic diseases which occur frequently in the tropics and which affect pregnant women. clinical disease of the mother during pregnancy, vertical transmission of parasites and transplacental passage of soluble parasitic antigens are discussed in relation to their immunopathological significance for the fetus. the incidences of congenital malaria, african trypanosomiasis and chagas' disease are reviewed, together with vertical transmission of filarial infection, invol ... | 1979 | 121975 |
| [clinical problems of amebiasis]. | dagnostic and therapeutic problems of amebiaiss, a disease rarely observed in this country, are discussed in the light of four own cases representing the various courses of the disease. these observations prompt the following conclusions: 1. amebiasis should be considered in cases of unclear acute or chronic intestinal disease, even if the patient has never visited endemic regions. 2. non-tropical forms of amebiasis may follow a severe course with complications such as liver abscess or ameboma. ... | 1975 | 168636 |
| protective immunity and possible autoimmune regulation in amebiasis. | hamsters were injected intradermally with axenic trophozoites of a pathogenic strain of entamoeba histolytica, and controls similarly with culture medium. localized lesions were produced in all animals injected with amebae. after the lesions healed all the animals were challenged intrahepatically with axenic amebae. extensive liver abscesses were produced in all the controls, but a small abscess in only one of the vaccinated hamsters. in the protected animals the indirect hemagglutination antibo ... | 1978 | 100068 |
| [immunofluorescent diagnosis of entamoeba histolytica trophocoites in preserved stool specimens of patients (author's transl)]. | a fixative and examination technique is described for identification of entamoeba histolytica trophocoites in faeces with the aid of the indirect immunofluorescence technique. magnaforms in bloody-dysenteric specimens and minutaforms in spontaneous or saline purged specimens give equally good fluorescence. the specifity of the rabbit antiserum against axenically grown e. hist. is good: there is strong positive reaction only with trophocoites of e. hist. weak crossreactions are encountered with t ... | 1979 | 94475 |
| a comparison of the formalin-ether concentration and trichrome-stained smear methods for the recovery and identification of intestinal protozoa. | the detection and identification of intestinal protozoa were compared using the formalin-ether concentration technique and trichrome smears. using the polyvinyl alcohol (pva) one-vial collection method, 13,194 outpatient samples were examined by both methods. twenty-three percent or 3077 specimens were positive for one or more species of intestinal protozoa. of the pathogenic protozoa identified, 96.3 percent of the trophozoites and 44.2 percent of the cysts were identified only by the trichrome ... | 1979 | 92195 |
| electron microscope studies of experimental entamoeba histolytica infection in the guinea pig. i. penetration of the intestinal epithelium by trophozoites. | germ-free guinea pigs were inoculated intracecally with entamoeba histolytica and the enteric flora derived from a human patient with acute amebic colitis. aanimals were killed at post-inoculation intervals of 7 to 12 days. the mode of penetration of cecal epithelium by the ameba was examined by light and electron microscopy. the following sequence was reconstructed from numerous individual observations. when the amebae were in moderately close proximity to the brush, border, the microvilli beca ... | 1975 | 163062 |
| amebic liver abscess in childhood. | | 1975 | 163163 |
| recent experience with hepatic amebiasis. successful treatment with metronidazole. | | 1975 | 163164 |
| tinidazole in the treatment of intestinal amoebiasis. | | 1975 | 163166 |
| serological study of amebiasis and toxoplasmosis in the lindu valley, central sulawesi, indonesia. | results of a serology survey in april 1972 for entamoeba histolytica and toxoplasma gondii antibodies among 484 inhabitants of the isolated lake lindu valley of central sulawesi (celebes) are presented. indirect hemagglutination antibody titers for amebiasis were found in over 10% of the population, although only 3.7% demonstrated significant titers of 1:128 or greater. there appeared to be no relationship between antibody titers and the age and sex of individuals tested, and the frequency distr ... | 1975 | 171809 |
| [invasive amebiasis due to entamoeba histolytica in a douc langur (pygathrix nemaeus l. 1771)]. | | 1975 | 163637 |
| differentiation of entamoeba: a new medium and optimal conditions for axenic encystation of e. invadens. | nutritional and culturing requirements for efficient axenic encystation of entamoeba invadens have been studied. a simple and reliable axenic encystation medium has been developed. it contains 0.5% tryptic digest of casein, 0.5% yeast extract, and 5% dialyzed serum in 5 mm potassium phosphate, ph 7.0. mass encystation (avg 70%) occurred within 30 hr when axenically growing trophozoites of e. invadens ip-l were transferred to this medium before they entered stationary growth phase. mass encystati ... | 1975 | 163898 |
| entamoeba histolytica in a dog. | | 1975 | 164078 |
| effect of host's nutrition on immune response to amoebic antigen & on susceptibility to infection with entamoeba histolytica. | | 1975 | 172442 |
| amoebic perforations of the colon. | | 1975 | 164125 |
| surgical intervention in intestinal amebiasis. | operative intervention in patients with unrecognized and untreated amebomas or acute fulminating amebic colitis may result in severe complications. nevertheless, certain clinical presentations of intestinal amebiasis require surgical procedures varying from drainage of an abscess to a subtotal colectomy. if, in patients with acute fulminating amebic colitis, the signs or symptoms of intraperitoneal or impending perforation develop, unremitting diarrhea associated with anemia and hypoproteinemia ... | 1975 | 164811 |
| in vitro studies on the differential toxicity of metronidazole in protozoa and mammalian cells. | | 1975 | 164840 |
| cell-mediated immunity in patients with amebic abscess of the liver. | | 1975 | 165023 |
| physiological significance of glucose transport in entamoeba histolytica. | | 1975 | 165094 |
| in-vitro activity of methronidazole on the cysts of entamoeba histolytica. | | 1975 | 166039 |
| amoebic abscess of the spleen. | | 1975 | 166115 |
| idiopathic acquired cold urticaria in north india. | forty-three otherwise healthy patients mostly between the ages of 10 and 40 were seen in north india during a two-year period with urticaria which developed on taking a cold water bath, exposure to cold winds, evaporation of rain water or sweat in that order of frequency. there was no familial predisposition to cold urticaria or atopic disorders. the refrigeration test for cryo-proteins was negative. only one patient developed a wheal on contact with ice but 38 of 43 patients showed an exaggerat ... | 1975 | 166579 |
| intestinal amoebiasis and amoebic liver abscess in brisbane, 1956 to 1973. clinical syndromes and the results of medical and surgical management. | nineteen patients presented to teaching hospitals in brisbane with symptomatic amoebiasis from 1965 to 1973. the majority of patients gave a history of overseas travel or residence. intestinal amoebiasis most frequently occurred in its non-dysenteric form, so that there were some problems in differentiating it from more commonly occurring forms of colitis. the potential for amoeboma to be mistaken for a neoplasm was evident. amoebic liver abscess was confirmed in 10 cases and, in nine of these, ... | 1975 | 167267 |
| parasitology survey and seroepidemiology of amoebiasis in south kalimantan (borneo), indonesia. | a parasitology surevy was conducted among inhabitants of 7 villages in 3 regencies in south kalimantan province, indonesia. a total of 2,169 stool specimens, 2,756 blood smears and 1,027 serum specimens were obtained, representing samples from approximately 10%, 12% and 5% of the population, respectively. one to 8 different intestinal parasitic infections were detected in 97% of the people. those parasites most frequently found were trichuris trichiura (83%), ascaris lumbricoides (79%), and hook ... | 1975 | 167454 |
| comparison of metronidazole and chloroquine for the treatment of amoebic liver abscess. a controlled trial. | chloroquine and metronidazole were compared in a randomized trial for the treatment of amoebic liver abscess in 36 patients. an additional 30 patients were treated without randomization. chloroquine was given according to the standard protocol at los tangeles county-university of southern california medical center, which is 500 mg daily for 10 weeks, whereas metronidazole was given in a dose of 750 mg three times daily for 10 days. criteria for the diagnosis of amoebic abscess included (a) a sui ... | 1975 | 168120 |
| fine structural changes at entamoeba histolytica rabbit kidney cell (rk 13) interface. | when bacteria-free trophozoites of entamoeba histolytica were added to a monolayer of rabbit kidney cells, cellular injury occurred at the sites of contact. changes appeared within the cell cytoplasm before there was any generalized cell membrane damage. at some points of contact there was apparent fusion of amoebic and cell cytoplasm. electron-dense bodies, here interpreted as liposomes, were present in the amoebic cytoplasm and beneath the surface membrane. no surface lysosomes were seen. vari ... | 1975 | 168818 |
| orphan airlift. enteric pathogens isolated from vietnamese children immigrating to the united states. | isolation studies for bacterial and parasitic agents were carried out on stool specimens from vietnamese infants at the time of their mass airlift to the united states. one or more bacterial pathogens were found in 49% of the 367 stool specimens cultured. the isolates included enteropathogenic escherichia coli (161), shigella (16), salmonella (15), but no salmonella typhi or vibrio cholerae. parasites identified in 88 stool specimens included giardia lamblia (10), ascaris lumbricoides (7), and e ... | 1976 | 176481 |
| [coprologic survey in bilharzia infected children of the adzope region (ivory coast)]. | during a stool examination survey on 174 bilharzia attained children living in a rural area of ivory coast, 93% were found to have intestinal parasites mainly entamoeba coli, necator americanus and ascaris lumbricoides. the prevalence of the cysts of entamoeba histolytica (4,7%) is lower than the one found in france (7%). concerning the other intestinal parasites, their respective occurrence have been compared with those noted in other regions of ivory coast and of africa. | 1975 | 170007 |
| [hepatic amebiasis in an infant]. | case report of a 8 month-old north-african infant with liver amebiasis. this disease is not rare in young children and may be observed in all endemic zones of amebiasis. the clinical characteristics, special for the age, and the biological features are reviewed. the diagnosis relies on immunological tests. treatment is essentially medical, metronidazole often being effective. | 1975 | 170879 |
| freeze-etching observations of trophozoites of pathogenic entamoeba histolytica. | pathogenic entamoeba histolytica trophozoites were studied by the freeze-etching (fe) technique of electron microscopy. surface replicas of intact cell membranes were highly convoluted with numerous invaginations, evaginations, and undulations. sperical depressions and elevations varying from 0.5 mu to 1.0 mu in diameter were commonly present on the external cell membrane and appeared to represent an extracellular secretory mechanism of trophozoites. cleaved surfaces of amebae exhibited a granul ... | 1976 | 176837 |
| pathogenicity of entamoeba histolytica. | the pathogenicity of entamoeba histolytica is discussed from an immunologic point of view. the evidence that there is some "trigger" mechanism which converts a commensal dwelling organism into a tissue invasive pathogen is rejected as inadequate. the number of liver abscess cases in comparison with the number of intestinal amebic infections in a population is so low that this in itself suggests that tissue invasion is a rare event in the life history of the ameba. a review is made of the experim ... | 1975 | 171223 |
| isolation and characterization of a pyrophosphate-dependent phosphofructokinase from propionibacterium shermanii. | a pyrophosphate-dependent phosphofructokinase (pyrophosphate; d-fructose-6-phosphate-1-phosphotransferase) has been purified and characterized from extracts of propionibacterium shermanii. the enzyme catalyzes the transfer of phosphate from pyrophosphate to fructose 6-phosphate to yield fructose-1,6-p2 and phosphate. this unique enzymatic activity was observed initially in entamoeba histolytica (reeves, r.e., south, d.j., blytt, h.g., and warren, l. g. (1974) j. biol. chem. 249, 7734-7741). this ... | 1975 | 171261 |
| the value of amoebic serology in an area of low endemicity. | one hundred sera from army patients who had had amoebiasis in the past and 113 sera from coloured immigrants attending a venereal diseases clinic were examined by four serological techniques. the indirect haemagglutination and the latex agglutination tests showed almost complete correlation; they are useful epidemiological tools but too sensitive and the antibodies on which they depend are too persistent for clinical use. the indirect fluorescent antibody test is a good clinical screening test, ... | 1976 | 178079 |
| in vitro sensitivity of entamoeba histolytica to furazolidone and iodochlorhydroxyquin, separate and combined. | entamoeba histolytica trophozoites isolated in robinson's medium from faeces containing cysts, transported from india, have been tested in vitro against the drugs furazolidone, iodochlorhydroxyquin, and both drugs combined as dependal. results show the levels at which drug action is significant and that interaction between the drugs occurs at two concentrations. | 1976 | 178080 |
| search for potential amoebicides. part iv. some hydrazones derivatives of 2-nitro-4-5-dimethoxybenzhydrazide and of 1-4-bis-[alpha(o-acetylhydrazino) phenethyl] piperazine. | by the condensation of 2-nitro-4-5-dimethoxybenzhydrazide and of 1,4-bis[alpha(o-acetylhydrazino) phenethyl] piperazine with various carbonyl compounds 42 hydrozones were synthesissed. out of them 26 compounds were tested against the axenic-culture of e. histolytica at conc. of 125 mug/ml but no significant amoebicidal activity was observed. | 1975 | 171635 |
| tinidazole for the treatment of amoebic liver abscess. | ten patients suffering from amoebic liver abscess were treated with tinidazole (fasigyn) 800 mg t.d.s. for 5 days. nine were cured, and 1 patient required further treatment with other drugs. following this, a double-blind trial was carried out to compare a group of patients treated with tinidazole with a similar group treated with metronidazole. each series consisted of 14 patients. in the tinidazole series 13 patients were cured and for 1 patient the result of treatment was dubious. all patient ... | 1975 | 171780 |
| the prevalence of entamoeba histolytica and toxoplasma gondii antibodies in central java, indonesia. | sera collected from people living along the slopes of mt. merapi and mt. merbabu (900-1900 m) in boyolali regency, central java, indonesia were tested by indirect hemagglutination tests for antibodies to entamoeba histolytica and toxoplasma gondii. a total of 695 sera from 439 males and 256 females, 2 to 75 years of age were tested for amoebiasis and 17.6% had positive antibody titers of 1:128 or greater. the prevalence of antibodies was the same for males and females and increased with age. the ... | 1975 | 179151 |
| [non-mitochondrial dna in cytoplasm]. | | 1976 | 179237 |
| [fibrillar and tubular fine structures in the cytoplasm of entamoeba histolytica (author's transl)]. | the electron-microscopical study of conventional fixed and contrasted entamoeba histolytica-trophozoites from diamonds monoxenic tty-medium revealed "thick fibrils" in the vesicular cytoplasm of the parasites. they are 9-14 nm in diameter and are therefore considered to be myosin-like filaments, that are spread mainly in the tail or the uroid of the moving ameba. no association with microfilaments (mf) or other organelles could be observed. during the same investigation microtubules (mt) of vari ... | 1975 | 171874 |
| virulence of bacteria-associated, crithidia-associated, and axenic entamoeba histolytica: experimental hamster liver infections with strains from patients and carriers. | experimental infections of the hamster liver were carried out with five strains from patients with clinical amoebiasis and ten strains from asymptomatic carriers. inocula of comparatively small size (12000-36000 amoebae) were injected under the liver capsule. 1. the virulence of the patient strains varied from 21-96% (see article) and declined sharply within 7-15 weeks after elimination of the associated bacterial flora. the virulence of the carrier strains varied from 0-100%, probably fluctuati ... | 1975 | 171875 |
| laboratory investigation of diarrhea in travelers to mexico: evaluation of methods for detecting enterotoxigenic echerichia coli. | a laboratory investigation was conducted on cultures collected from travelers before, during, and after a trip to mexico to characterize the etiology of traveler's diarrhea. four laboratory methods for detecting enterotoxigenicity of escherichia coli were evaluated: the infant mouse assay, the chinese hamster ovary (cho) cell assay, the y1 adrenal cell assay, and the rabbit ileal loop. although a number of common enteric pathogens were identified as a cause of traveler's diarrhea, including six ... | 1976 | 180047 |
| [raynaud syndrome of unusual etiology]. | | 1976 | 180472 |
| acetate kinase (pyrophosphate). a fourth pyrophosphate-dependent kinase from entamoeba histolytica. | | 1975 | 172079 |
| amebiasis of clitoris mimicking carcinoma. | | 1976 | 181603 |
| search for potential amoebicides. part v. n-substituted 2-nitro-4,5-dimethoxybenzamides and anils of 2-amino-3-methoxy and 2-amino-4,5-dimethoxybenzoic acids. | the authors in all have synthesised 28 new n-substituted 2-nitro, 4,5-dimethoxy-benzamides, and anils of 2-amino-3-methoxy and 2-amino-4,5-dimethoxybenzoic acids with a view to obtain potent amoebicides. their work is based on the observation that a large number of dimethoxyphenyl substituted derivatives occupy an important place as antiamobic agents. fourteen belonging to different series subjected to in vitro screening for amoebicidal activity against e. histolytica failed to show any signific ... | 1976 | 181737 |
| incorporation of purines and pyrimidines in axenically grown entamoeba histolytica. | | 1976 | 182949 |
| immunofluorescent staining of amebae in routine paraffin-embedded tissues. | | 1975 | 172622 |
| [the intestinal parasite fauna in patients, returned from the tropics, from the dresden district]. | it is reported on the affection with intestinal parasites in 438 persons who returned from the tropics. in these test persons were also established only those species of parasites which were proved in the dresden inhabitants. however, there were remarkable quantitative differences between the affection of the persons returning from the tropics and the dresden inhabitants. thus by laboratory examinations in dresden in the persons returning from the tropics were established infections with entamoe ... | 1975 | 173101 |
| [duration of possible detection of cysts of entamoeba histolytica in stool samples (author's transl)]. | stool samples containing large numbers of cysts of entamoeba histolytica were stored at room temperature (+22 degrees c - +25 degrees c) and at +4 degrees c respectively. after 1 h, 6 h, 12 h, 20 h, 36 h, 5 d, 7 d, 10 d, 15 d, 20 d, and 30 d smears were performed and stained according to the method of heidenhain. in both groups cysts remained easily detectable for about one week; after that time, however, distinct changes of the morphology of the cysts occurred and the number of detectable indiv ... | 1975 | 173112 |
| [editorial: 100 years after the discovery of entameba histolytica]. | | 1975 | 173633 |
| precipitating antibodies against entamoeba histolytica in liver pus--a preliminary communication. | | 1975 | 175000 |
| [a patient with pain in her side]. | | 1976 | 185532 |
| molecular biology of amoebic encystment. | | 1975 | 175004 |
| evaluation of culture method in the diagnosis of suspected cases of amoebiasis. | | 1975 | 175008 |
| [the amebacidic properties of some 2-nitrobenzofuran substituants]. | | 1976 | 185931 |
| action of metabolic inhibitors on axenically grown entamoeba histolytica. | | 1976 | 186406 |
| comparative susceptibility of latin american and united states students to enteric pathogens. | | 1976 | 186708 |
| membrane structure of entamoeba histolytica: fine structure of freeze-fractured membranes. | | 1976 | 175169 |
| [amebiasis. 1]. | | 1976 | 187913 |
| pyruvate oxidase (coa acetylating) in entamoeba histolytica. | | 1975 | 167776 |
| [pharmacologic study of the amebicidal and trichomonicidal activity of ornidazole (1-(2-hydroxy-3-chloropropyl)-2-methyl-5-nitroimidazole]. | | 1976 | 188370 |
| snythesis and antiprotozoal activity of nitro derivatives of 2, 2'-biimidazole. | we synthesized a series of 2,2'-biimidazoles with different substituents and screened them against entamoeba histolytica, trichomonas vaginalis and giardia muris. a 5-nitro group is necessary for the inclusion of activity and an amino group exercises favourable effect on in vivi activity. | 1975 | 167793 |
| a survey of intestinal parasitism in a community on the pan american highway route in eastern panama. | a survey of intestinal parasitism was conducted at yaviza, a town in eastern panama's province of darien. single stool specimens from 202 persons, representing 11 percent of the town's total population, were examined. in all, 181 (90 per cent) of the specimens examined were found positive for one or more potentially pathogenic parasites. the most common parasite found was trichuris trichiura, which was observed in 80 per cent of the samples. others were ascaris lumbricoides, in 62 per cent of th ... | 1975 | 167889 |
| [possibilities and problems in the laboratory diagnosis of amebiasis]. | | 1977 | 189237 |
| nicotinamide nucleotide transhydrogenase in entamoeba histolytica, a protozoan lacking mitochondria. | | 1976 | 175989 |
| [letter: treatment of intestinal amebiasis by metronidazole enemas]. | | 1975 | 176625 |
| parasitology survey in the palu valley, central sulawesi (celebes), indonesia. | a survey was undertaken in the palu valley, central sulasesi to determine whether schisto somiasis japonica was endemic in the area and to determine the prevalences rates of intestinal and blood parasites. seven villages along the palu river drainage system with an estimated popualtion of 18,700 were surveyed and 2,433 stools, 3,651 blood smears and 1,167 sera were collected and examined. | 1975 | 176737 |
| amoebiasis on easter island. | | 1976 | 190741 |
| symposium on diarrhea. 3. investigation of chronic diarrhea. | the practical approach to the investigation of diarrhea must be logical and based on anatomic considerations. the site of the underlying disorder may be determined by the clinical picture, and the logic of investigation will be influenced by the history. important specific investigation in a case of colonic diarrhea include a careful rectal examination, stool inspection, sigmoidoscopy, rectal biopsy and barium enema study. colonoscopy has been used, but its role has yet to be defined. in a case ... | 1977 | 191173 |
| [duodenal amebiasis]. | entamoeba histolytica was found in duodenal content obtained through fiberoptic gastroduodenoscopy in 13 patients. clinical, radiological and endoscopic findings are analized. the possibility of an amoebic duodenitis is proposed. | 1975 | 177327 |
| survival of monoxenically (crithidia sp.) and axenically grown entamoeba histolytica cultures after storage in liquid nitrogen. | | 1976 | 177374 |
| the rhabdoviruses of entamoeba histolytica and entamoeba invadens. | rhabdoviruses have been described in plants, arthropods and vertebrates including man. members of the group are of agricultural, veterinary and medical importance. the presence of a rhabdovirus in entamoeba histolytica and entamoeba invadens is the first record of their existence within protozoa. the morphology of this virus is described and its significance discussed, in relation to a possible lysogenic state and pathogenecity of entamoeba species. | 1976 | 178279 |
| 6-phosphofructokinase (pyrophosphate). properties of the enzyme from entamoeba histolytica and its reaction mechanism. | the inorganic pyrophosphate-requiring 6-phosphofructokinase of entamoeba histolytica has been further investigated. the molecular weight of the enzyme is approximately 83,000 and its isoelectric point occurs at ph 5.8 to 6.0. the divalent cation requirement for reaction was explored. in the direction of fructose 6-phosphate formation half-maximal rate required 500 mum magnesium ion; in the direction of fructose bisphosphate formation 8 mum magnesium ion sufficed. atp, ppi, polyphosphate, acetyl ... | 1976 | 178659 |