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[occurence of entamoeba gingivalis (gross 1849) in various age groups of the prague population]. 1977268237
[oral protozoans and diabetes: study in 117 patients].a study on the presence of oral entamoeba gingivalis and trichomonas tenax has been carried out on calculus or dental plaque from 117 diabetic subjects. statistical analysis of results shows no correlation between diabetes and protozoa. the same frequency was found between diabetic and normal subjects. nevertheless, a significant relation has been found between the diabetes and the yeasts.1979372177
[a study of the frequency of protozoa and yeasts isolated from the parodontium of 509 subjects (author's transl)].the protozoa entamoeba gingivalis and trichomonas tenax together with yeasts of the genus candida were investigated in the mouth (gums or neck of tooth) of 509 healthy or diabetic subjects. a study of the possible correlation between presence of these parasites and various local or general factors, showed that neither the sex, maxillo-facial anomalies nor smoking had any influence on parasite incidence. entamoeba gingivalis was encountered in 85 per cent of subjects free from parodontopathy. num ...1979395489
[entamoeba gingivalis--factor in periodontal diseases]. 19761077247
[entamoeba gingivalis incidence in normal gingiva, catarrhal and experimental gingivitis in man]. 19761077250
synergistic growth studies of entamoeba gingivalis using an ecologen.a unique multiple diffusion growth chamber, an ecologen, designed for the study of interactions among microorganisms, was introduced as a means of growing xenic cultures of entamoeba gingivalis with crithidia sp. or yersinia enterocolitica. entamoeba gingivalis was grown in the central diffusion reservoir of the ecologen connected to separate growth chambers inoculated with the microorganisms to be evaluated. growth of the accompanying bacteria in the e. gingivalis compartment was almost complet ...19921459786
[occurrence of the protozoa, entamoeba gingivalis and trichomonas tenax in the mouths of children and adolescents with hyperplastic gingivitis caused by phenytoin].the oral protozoa entamoeba gingivalis and trichomonas tenax do not occur in small children and are rarely found in older ones. in adolescents their occurrence rate keeps increasing with age. they parasitize in an oral cavity changed by inflammation, yet also in a healthy mouth. their highest occurrence rate has been recorded in adults with periodontosis and atrophy of the periodontium, a somewhat lower one in adults with gingivitis. the authors addressed the question whether the presumed low oc ...19921525687
colonization of the uterus by the oral protozoan entamoeba gingivalis.pap smears occasionally reveal protozoa of the genus entamoeba in the uterus of intrauterine device (iud) users, but definitive identification of the species involved has not been possible. using riboprinting, a technique that compares ribosomal rna gene sequences, we present evidence that the organism is entamoeba gingivalis, an inhabitant of the mouth. colonization most likely occurs via orogenital contact and requires the presence of an iud and a concomitant bacterial infection.19921539749
the prevalence of entamoeba gingivalis and trichomonas tenax in periodontal disease.two hundred patients (100 males and 100 females) having either marginal periodontitis or gingivitis were examined for detection of e. gingivalis and t. tenax. e. gingivalis was more prevalent among patients with periodontitis particularly females, while t. tenax was not discovered entirely in both patients and control groups.19921578154
an antibiotic-free medium for the xenic cultivation of entamoeba gingivalis.diamond's tyi-s-33 (trypticase-yeast extract-iron-serum) medium was used as the basis for a new antibiotic-free medium for xenic growth of entamoeba gingivalis. nutritional requirements of the oral protozoan were determined in an effort to optimize growth. tyi-s-33 medium did not support e. gingivalis growth prior to modification. the changes included: (a) deletion of l-cysteine.hcl and thioctic acid, (b) substitution of glucose for dextran i (mol. wt 185,000) or rice starch, (c) reduction of co ...19911717390
[morphology and diagnosis of entamoeba gingivalis and trichomonas tenax and their occurrence in children and adolescents].specimens obtained from 176 eight- to nineteen-year-old subjects were cultured for oral protozoa. of the given series, 25 subjects (14.2%) had in their mouth only e. gingivalis, 5 (2.9%) had a mixed invasion of e. gingivalis and t. tenax, and 2 subjects (1.1%) had only t. tenax. a total of 32 subjects (18.2%) were infested by oral protozoa. the following conclusions were made: oral protozoa occur also in children and teenagers with a cured or intact dentition; their occurrence rate was higher in ...19912043965
a new medium containing antibiotics for the xenic cultivation of entamoeba gingivalis.diamond's trypticase-yeast extract-serum-gastric mucin (tysgm-9) medium was studied for its suitability to support the xenic growth of the oral protozoan entamoeba gingivalis. amoebic growth was found to be best when the inoculum for transfer was 0.1 ml, the incubation temperature was 35 degrees c, and the interval between transfers was 48 h. these parameters were also useful for controlling the growth of accompanying bacteria. in addition, bacterial growth in xenic stock cultures, which had a d ...19902251238
[importance of trichomonas tenax and entamoeba gingivalis protozoa in the human oral cavity].trichomonas tenax and entamoeba gingivalis are protozoa found in the human oral cavity. morphological and ultrastructural characteristics of those parasites were reviewed and then studied with the scanning electron microscope in this paper. based on previous epidemiological studies, the relationship between periodontal disease and those protozoa was analysed. evaluation of the pathogenicity of trichomonas tenax and entamoeba gingivalis was also part of the discussion of this study.19902382077
[periodontal diseases with entamoeba gingivalis].at the beginning of our century entamoeba gingivalis was considered to be a pathogenic bacteria, capable to induce parodontal lesions. later on it was also found in healthy persons, and the germ was less interesting from the medical view-point. in the present study the authors report their findings concerning e. gingivalis in 135 patients with various stomatological affections including: dental caries, parodontopathies, pulpitis, gangrene, ulcero-necrotic stomatitis etc. the study was started fo ...19892535047
clinical survey of entamoeba gingivalis by multiple sampling in patients with advanced periodontal disease.a clinical survey of entamoeba gingivalis was conducted in patients with advanced periodontal disease. a total of 100 specimens were taken from 10 patients (four females and six males) who were each sampled at 10 disto-facial random sites. the oral hygiene of the persons scored from good to fair to poor and very poor. the age of the test persons ranged from 20 to 68 years. all persons examined harbored e. gingivalis: the minimum prevalence was four sites positive out of 10 and the maximum preval ...19892592147
growth studies on xenic cultures of entamoeba gingivalis using established media.wantland's egg medium, modified shaffer-frye (msf) medium and tryptose-trypticase-yeast extract-serum-blood (tty-sb) medium were compared with variations of the latter two media for their ability to support xenic growth of entamoeba gingivalis. wantland's egg medium was unsuitable for growth of e. gingivalis. accompanying bacteria became resistant to penicillin and streptomycin, overwhelming the amoeba culture. msf medium was also unsuitable for the cultivation of e. gingivalis. bacterial growth ...19892635159
studies on the microflora associated with xenic cultures of entamoeba gingivalis.the microflora associated with xenic stock cultures (atcc 30927) of entamoeba gingivalis, the major protozoan of the human oral cavity, were isolated and identified as citrobacter diversus, yersinia enterocolitica, acinetobacter anitratus and pseudomonas maltophilia. in studies to determine whether the bacterial isolates were able to utilize rice starch as a sole carbon source, y. enterocolitica exhibited excellent growth in rice starch minimal medium and tysgm-9 medium (with rice starch), but g ...19892739589
distinction between entamoeba gingivalis and entamoeba histolytica, revisited. 19862868598
[a survey of entamoeba gingivalis and trichomonas buccalis in xian]. 19883266133
the incidence of entamoeba gingivalis in the oral cavity. 19873455639
entamoeba gingivalis in sputum smears.entamoeba gingivalis is a common parasite of the human buccal cavity whose rare appearance in papanicolaou-stained sputum smears may be missed. two such cases are described, including the morphologic features of this ameba. the trophozoites were seen to phagocytize leukocytes as well as red blood cells, in distinction to e. histiolytica, which phagocytizes only red blood cells and also can cause pulmonary abscesses. the concomitant finding of actinomyces sp. organisms in one patient reinforces t ...19853861055
[a preliminary study on the pathogenicity of entamoeba gingivalis]. 19854053313
[preliminary data on canine enzootics due to trichomonas canistomae and entamoeba gingivalis in parisian dogs]. 19704258345
[the statistical study on the incidence of entamoeba gingivalis (author's transl]. 19734523377
ultrastructure of entamoeba gingivalis. 19675248961
entamoeba gingivalis in periodontal disease. 19715283012
[trichomona elongata and entamoeba gingivalis in mouth diseases]. 19675293717
entamoeba gingivalis: prevalence amongst inhabitants of the niger delta.a survey based on microscopic examination of scrapping taken from the gum-line was conducted on the prevalence of entamoeba gingivalis amongst inhabitants of the niger delta area of nigeria. an overall prevalence of 6.9% was recorded. infection was highest among the 5-10 year age group (22.9%) and dropped progressively with increase in age of the subjects such that by the age of 29 years it had fallen to 5.7%. no significant difference (p less than 0.005) could be detected regarding infection am ...19846523563
oral amoebiasis: the role of entamoeba gingivalis in periodontal disease. 19836585855
[incidence of entamoeba gingivalis in edentulous patients]. 19836589066
a survey of pathogenic and free-living amoebae inhabiting swimming pool water in mexico city.a survey of pathogenic and free-living amoebae in swimming pool waters of mexico city was performed. among the organisms isolated those which have public health importance were naegleria fowleri carter and acanthamoeba castellanii douglas. amoebae of the genera acanthamoeba, naegleria, and vahlkampfia were recovered in their cystic stage while those specimens of the genera amoeba, entamoeba, thecamoeba, and vanella were recovered only in their trophic stage during this study. amoebae were concen ...19836617613
parasites found in the mouths of inhabitants of three villages of south kalimantan (borneo), indonesia.infection rates of parasites in the oral cavity were compared for two study areas in south kalimantan, indonesia. penguiran and sungai baru, two adjacent villages, were considered a single study area and were inhabited by 151 individuals ranging from 2 to 70 years. tanah intan, the second study area, had a population of 265 persons who also ranged from 2 to 70 years. the standard of living was low in all the villages (average of 450 u.s. dollars per family per year). teeth and gums were examined ...19846729983
[entamoeba gingivalis in school children]. 19836828823
frequency of entamoeba gingivalis in human gingival scrapings.a survey was made of gingival scrapings stained by the papanicolaou method to assess the occurrence of entamoeba gingivalis, a nonpathogenic-oral amoeba. positive findings were recorded in 59% of 113 dental patients, and 32% of 96 healthy controls. these figures showed no significant changes during the last 20 years when compared with data published in 1960 and 1963. the existence of e. gingivalis and its rare appearance in the sputum should be known to cytologists because of the morphologic res ...19836881102
amebae resembling entamoeba gingivalis in the genital tracts of iud users.a total of 2,252 vaginopancervical (fast) smears were studied as a continuation of an ongoing program to further investigate the occurrence of amebae in the genital tracts of women using intrauterine devices (iuds). of the 947 iud users, 1% harbored trophic amebae. no amebae, however, were found in any of the 1,164 smears from non-iud wearers. in all instances the amebae were associated with actinomyces. both organisms disappeared promptly after removal of the iud. in preparations stained accord ...19806933802
[protozoa of the human oral cavity (epidemiological correlations and pathogenic possibilities].the oral protozoa frequency has been studied in 300 patients consulting for oral problems. entamoeba gingivalis has been isolated more frequently in culture than trichomonas tenax (50.7% against 28%). the age range which showed the highest frequency in protozoa was the 30-34 year old group for the amoeba and the 45-54 year old group for the flagellae. the endemia increased progressively in relation to the ohis index. trichomonas tenax is three times more frequent in case of deep periodontal dise ...19816943141
entamoeba gingivalis in tasmania. 19827179426
nucleotide sequence of the srrna gene of entamoeba gingivalis: applications for construction of a species-specific dna probe and phylogenetic analysis.the small subunit ribosomal rna (srrna) gene of entamoeba gingivalis was amplified by pcr and the product of 1.9-kbp sequence was cloned into a plasmid vector puc18. four clones were isolated and sequenced. the insert dnas were 1918- to 1921-bp long and a+t rich (65.5%). the four srrna sequences of e. gingivalis were found to be aligned with those of nine related protozoans while searching for e. gingivalis-specific sequences. a sequence of 28 oligonucleotides was chosen, chemically synthesized, ...19957603363
frequency of entamoeba gingivalis among periodontal and patients under chemotherapy.this study was carried out to investigate the frequency of e. gingivalis in the gingival crevices of patients with periodontitis compared to normal subjects. flagyl therapy was tried in cases with periodontitis. also the frequency of this amoeba was investigated in patients receiving chemotherapy to be compared to normal subjects. the results revealed that higher frequency was observed in patients with periodontitis and flagyl therapy reduced this frequency. cases under chemotherapy showed highe ...19947844431
[incidence, morphology and diagnostic studies of entamoeba gingivalis, gros, 1849].entamoeba gingivalis is found only in its trophozoite form and it is postulated that its main transmission mechanism is through the kiss. e. gingivalis is considered pathogenic by some authors and commensal to others. it does not have a defined role in the installation of disease. to address some of this questions we studied a 100 patients who were seen through the odontological hospital from the universidade federal de uberlândia in order to determine its frequency in the buccal cavity. the mat ...19958668839
detection and identification of entamoeba gingivalis by specific amplification of rrna gene.a pair of oligonucleotide primers were designed from the nucleotide sequence of the gene encoding the small subunit ribosomal rna (srrna) of the oral protozoan parasite entamoeba gingivalis. the primers amplified a 1.4-kb dna fragment by polymerase chain reaction and were specific for entamoeba gingivalis but not for other protozoa, oral protists and bacteria, or human leukocytes. with this method, the dna from as few as 30 cells of entamoeba gingivalis could be detected. these results suggest t ...19968989863
intraspecific variation and phylogenetic relationships in the genus entamoeba as revealed by riboprinting.eighty-seven isolates of amebae assigned to the genus entamoeba have been studied by riboprinting (restriction enzyme polymorphism analysis of polymerase chain reaction amplified small subunit ribosomal rna genes). twenty-four distinct patterns were obtained, most of which corresponded to previously described species. in three species (entamoeba coli, entamoeba gingivalis and entamoeba moshkovskii) intraspecific variation was detected that led to the grouping of isolates into 'ribodemes' (popula ...19979109261
entamoeba gingivalis identified in a left upper neck nodule by fine-needle aspiration: a case report.we present a unique case of a 37-yr-old patient who underwent a left partial glossectomy, modified neck dissection, and radiation therapy in december 1990. in june 1991 the patient developed a 0.6 cm erythematous nodule in the left upper portion of her neck adjacent to the surgical scar. a fine-needle aspiration (fna) of the nodule was performed. cytologic examination revealed the presence of numerous organisms morphologically consistent with entamoeba gingivalis. although e. gingivalis can be f ...19989626522
entamoeba gingivalis in human immunodeficiency virus type 1-infected patients with periodontal disease.necrotic periodontal disease is a progressive painful oral lesion in human immunodeficiency virus type 1 (hiv-1)-infected patients, and the etiology is unknown. earlier studies of hiv-1-infected patients have shown significant changes in the viral and fungal oral microflora. the aim of this study was to relate the occurrence of protozoa to clinical symptoms and immunosuppression. oral symptoms were registered in 45 patients at different stages of the hiv-1 infection and in 15 hiv-seronegative he ...19989770142
[morphology and diagnosis of the oral protozoans trichomonas tenax and entamoeba gingivalis using the giemsa-romanovsky stain].in the microscopic diagnosis of trichomonas tenax and entamoeba gingivalis is the technically and time not demanding native preparation of a culture, in which both protozoans can be detected according to their typical motility, determining. in the permanent preparation of the culture stained according to giemsa-romanovsky, which has also documentary character, are all of the characteristic cell organelles stainable, enabling so their detection without their typical motility. staining according t ...19989919761
risk indicators for periodontal diseases in guatemalan adolescents.a random sample of sixty-two 11-15-year-old adolescents from 17 different locations in guatemala were selected for this study. pocket depth, plaque index, and bleeding upon probing were recorded from 6 randomly selected sites in each subject (a total of 372 sites). subgingival plaque samples were subsequently collected from these sites and processed by several assays. for cost reasons, in each pair of sites different assays were performed as follows: sites #1, #2--bana test for t. denticola, p. ...200011210274
[studies on the continuous culture and the growth of entamoeba gingivalis].to establish a method for continuous culture of entamoeba gingivalis(e. g.).199912563762
[studies on the continuous culture and pathogenicity of entamoeba gingivalis].to establish a method for continuous culture of entamoeba gingivalis (e. g.) and study the pathogenicity of e. g..200012567722
[experimental study on the pathogenesis of entamoeba gingivalis].to study the pathogenesis of entamoeba gingivalis (e. g.) and its relation to periodontal diseases.200112571972
[unusual localization of entamoeba gingivalis and trichomonas elongata]. 195313086196
frequency of trichomonas vaginalis, trichomonas tenax and entamoeba gingivalis infections and absence of correlation between oral and vaginal protozooses in italian women. 196414125877
[the incidence of carriers of "trichomonas tenax" and of entamoeba gingivalis in some zones of the province of messina]. 196414169904
microbiological basis of oral infections and sensitivity to antibiotics.because oral infections are common, the physician must understand the underlying etiology, pathogeny, and other variables that determine how these processes evolve in order to choose the most appropriate antibiotic drug. the special characteristics of the oral cavity determine the make-up of the microflora that lives there. different anaerobic species belonging to the peptostreptococcus, prevotella, fusobacterium, gemella, and porphyromonas genera are of particular interest, as are the aerobic s ...200415580129
[occurrence of oral subclinical infections in insulin treated diabetics].the purpose of this study was to examine oral cavity condition, identify microorganisms and evaluate interrelation between protozoans, bacteria and fungi occurring in mouths of insuline treated diabetics. 30 men and women, 25-60 years old, were clinically assessed for their oral cavity condition including ph range. fifteen of them were the insuline treated diabetics. swabs taken of different sites of periodontium, dental plaques and dental pockets collected from each patients were used for detec ...200416859022
[co-occurrence of parasites sensu lato in alimentary tract of patients hospitalised in lower silesia].up to now, the co-occurrence of parasites sensu stricto and fungi were confirmed mostly in the oral cavity. the aim of the present parallel parasitological and mycological investigations was to determine co-occurrence of protozoa, helminths and fungi (parasites sensu lato) both in smears from cavity and in stool samples of 93 patients undergoing the non-parasitological treatment in two hospitals of lower silesia (poland). among the examined patients parasites sensu lato (13 species) were found i ...200016883695
new insights into the phylogeny of entamoeba species provided by analysis of four new small-subunit rrna genes.sequences of small-subunit rrna genes have been obtained for four new isolates of entamoeba. phylogenetic analyses give new insights into the evolution of these organisms. a novel entamoeba from pigs in vietnam that produces uninucleate cysts proved to be unrelated to other uninucleated cyst-producing species. revival of the name entamoeba suis for this organism is proposed. instead of being related to entamoeba polecki, it shares a recent common ancestor with the non-encysting entamoeba gingiva ...200616957127
mitosis in entamoeba gingivalis. 194718935405
[entamoeba gingivalis infection among college students in tangshan].to investigate the prevalence of entamoeba gingivalis infection in college students in tangshan, and analyze the relationship between the infection and human behaviors.200919459501
entamoeba gingivalis pulmonary abscess - diagnosed by fine needle aspiration.entamoeba gingivalis (e. gingivalis ) is a parasitic protozoa of the oral cavity, most often found in gingival tissues around the teeth associated with poor oral hygiene. here, we report a case of e. gingivalis in a pulmonary ct guided fine needle aspiration material, from a 60-year-old man with newly found lung mass. on site diff-quik smear examination revealed the presence of marked acute inflammation, colonies of actinomyces, and a number of 'large macrophages-like organisms'. upon examinatio ...200819495399
prevalence of oral entamoeba gingivalis and trichomonas tenax in patients with periodontal disease and healthy population in shiraz, southern iran.it was shown that two parasites of entamoeba gingivalis (e. gingivalis) and trichomonas tenax (t. tenax) may be responsible for oral parasitic infection. this study was designed to evaluate the prevalence of these parasites in oral cavity of patients with periodontal disease and in healthy population in shiraz, southern iran.201020427914
[the investigation of entamoeba gingivalis and trichomonas tenax in a group of patients with periodontal disease.].the oral cavity is suitable for invasion of many microorganisms. entamoeba gingivalis (e.gingivalis) and trichomonas tenax (t.tenax) settle in the oral cavity of patients with poor oral hygiene and gingival disease. in the present study, two slide specimens were prepared from the cole region of the teeth of 46 persons for investigation of the parasites. one of the slide specimens was dried in the air while the other one put into fixative and they were stained with trichrome and giemsa stains. th ...201020597052
[investigation of the relationship between oral and dental health and presence of < i > entamoeba gingivalis < /i > and < i > trichomonas tenax < /i >]objective: < i > entamoeba gingivalis < /i > and < i > trichomonas tenax < /i > can cause gingivitis and scale. in this study, the prevalence of < i > e. gingivalis < /i > and < i > t. tenax < /i > were investigated among patients who were admitted to the cumhuriyet university, faculty of dentistry. methods: two scraping samples were taken from 220 patients (ages varying from 12 to 75 years) and a questionnaire including fifteen parameters was applied to all patients. the samples were diluted in ...201021391183
use of pcr to detect entamoeba gingivalis in diseased gingival pockets and demonstrate its absence in healthy gingival sites.investigators using light microscopy have identified the protozoan parasite entamoeba gingivalis from diseased gingival pockets for nearly 100-áyears. the objective of the present investigation was to develop a molecular biology approach for determining the presence of e. gingivalis in both diseased gingival pockets and healthy gingival sites. for this, a previously developed conventional polymerase chain reaction (pcr) was evaluated and a real-time polymerase chain reaction assay was developed. ...201121400116
Prevalence of genital tract infection with Entamoeba gingivalis among copper T 380A intrauterine device users in Egypt.This study was performed to study the prevalence and potential pathogenicity of E. gingivalis in the genital tracts of intrauterine contraceptive device (IUD) users.201222067807
entamoeba gingivalis in acute osteomyelitis of the mandible.an 86-year-old woman presented with osteonecrosis of the mandible following bisphosphonate therapy for multiple myeloma, and underwent surgical debridement and multiple dental extractions. histopathologic examination of the necrotic bone fragments revealed acute osteomyelitis with mixed flora and organisms morphologically consistent with entamoeba gingivalis. in addition to oral scrapings and sputum, e. gingivalis has been identified in specimens obtained from the uterus, cervix, neck lymph node ...201121785604
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