Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| [blastocytosis. an italian story]. | 2002 | 12532568 | |
| incidence of blastocystis hominis in faecal samples submitted for routine microbiological analysis. | over a one-year period, 1390 faecal samples were submitted to aberystwyth public health laboratory for routine microbiological examination. all were stained using a commercial trichrome method. blastocystis hominis was detected in 96 (6.9%), making it the most common parasite found in the study. of the b. hominis-positive specimens, 73% were missed on direct microscopy. molecular typing of b. hominis has revealed extensive genetic diversity in morphologically identical strains and thus detection ... | 2002 | 28700853 |
| a spectrum of pathogenic and non-pathogenic intestinal parasites in pre-employment medical check-up for workers and their families. | stool analysis plays an important role in pre-employment tests for the screening of intestinal parasites in new workers. | 2003 | 23011980 |
| epidemiology and control of intestinal parasites with nitazoxanide in children in mexico. | the purpose of this study was to evaluate the efficacy and the tolerance of nitazoxanide in children as a single broad-spectrum antiparasitic agent in the treatment of mixed parasite infections with both intestinal protozoa and helminths. two hundred seventy-two children (age range = 2-14 years) participated in this study. we systematically surveyed every household head using questionnaires designed to obtain information about household socioeconomic status and hygiene. parasitic infections were ... | 2003 | 12875284 |
| multiple reproductive processes in blastocystis hominis. | 2003 | 12855375 | |
| intestinal parasitic infection and associated symptoms in children attending day care centres in trujillo, venezuela. | to examine the presence of intestinal protozoan and helminth infections and their association with clinical signs and symptoms in children in trujillo, venezuela. | 2003 | 12667154 |
| rotavirus type a and other enteric pathogens in stool samples from children with acute diarrhea on the colombian northern coast. | the present study, conducted from march 1998 to july 2000, determined the etiology of acute diarrhea in 253 young children and infants from cartagena and sincelejo, colombia. in 253 stool samples, the following enteric pathogens were recovered: rotavirus type a (36.6%) as the major agent, salmonella spp (9.0%), shigella spp (8.0%), enteric pathogenic escherichia coli (6.0%), enteric hemorragic esc. coli (2.8%), providencia alcalifaciens (2.8%), aeromonas hydrophila (2.0%), yersinia enterocolitic ... | 2003 | 12687410 |
| molecular characterization of blastocystis isolates from birds by pcr with diagnostic primers and restriction fragment length polymorphism analysis of the small subunit ribosomal rna gene. | seven blastocystis isolates from birds were genotyped by polymerase chain reaction (pcr) using diagnostic primers, and the homology among isolates was then confirmed by restriction fragment length polymorphism (rflp) analysis of the small subunit ribosomal rna gene. a zoonotic genotype, subtype 4, was detected in three isolates by pcr, but the rflp profiles of these isolates differed from those of the subtype 4 reported previously from a human. none of the other four isolates were amplified with ... | 2003 | 12632154 |
| a placebo-controlled treatment trial of blastocystis hominis infection with metronidazole. | blastocystis hominis, previously considered a harmless yeast, is now classified as a protozoan inhabiting the human intestinal tract. the pathogenicity of b. hominis remains controversial and is currently the subject of extensive debate.1- 5 as a result of the uncertainty surrounding the pathogenic role of b. hominis, large-scale treatment trials of b. hominis infection have so far been lacking. in spite of this, several drugs have been reported to be active against the parasite.6-8 the present ... | 2003 | 12650658 |
| molecular characterization of blastocystis isolates from primates. | twelve blastocystis isolates from primates were analyzed genetically by polymerase chain reaction (pcr) using diagnostic primers and pcr-restriction fragment length polymorphism (rflp) of ssurdna. two distinct genotypes, subtype 1 and a variant of subtype 1, were detected in two and six of the 12 isolates, respectively. the rflp profiles of the isolates designated as subtype 1 were identical to the profile of ribodeme 1. the rflp profiles of the six isolates designated as variants of subtype 1 w ... | 2003 | 12719144 |
| secretory and humoral antibody responses to blastocystis hominis in symptomatic and asymptomatic human infections. | the study included 3 groups of individuals, in the first 2 groups they had positive stool microscopic examinations only for b. hominis indicating blastocystosis, with and without gastrointestinal symptoms, respectively, while the last group included apparently healthy individuals with no parasites in stool. stool and serum samples of these individuals were subjected to detection of anti-b. hominis fecal and serum iga and serum igg antibodies by indirect elisa, and detection of b. hominis fecal a ... | 2003 | 12739797 |
| blastocystis isolates from a pig and a horse are closely related to blastocystis hominis. | blastocystis has a widespread distribution in a variety of animals, which is a potential source of infection for humans. however, the contribution of zoonotic transmission remains unclear due to the absence of molecular proof of these organisms being identical to those found in humans. we report herein the similar subgroup of blastocystis isolates from humans, pigs, and a horse using a restriction fragment length polymorphism (rflp) analysis of partial small-subunit ribosomal dna (ssu rdna). add ... | 2003 | 12624017 |
| intestinal parasitic infestations among children in an orphanage in pathum thani province. | infection caused by intestinal parasites is still a common health problem especially in children from developing countries. orphans are a group of underprivileged population in society. to evaluate the intestinal parasitic infections in children in an orphanage in pathum thani province, thailand, stool samples were collected during a cross-sectional study in april 2001. examination for intestinal parasites were performed by using simple smear, formalin-ether concentration, boeck and drbohlav's l ... | 2003 | 12929999 |
| [blastocystosis: controversy and indefinedness]. | blastocystosis is the infection caused by blastocystis hominis. it is associated with frequent and unquestionably very important controversy and lack of definition, above all due to its implications for general assistance and medical care. in that connection, there is considerable disagreement on the subject of the pathogenicity of this protozoan, which should be categorically defined. other aspects besides the above, require clarification through results from well conducted studies aiming at at ... | 2003 | 12937731 |
| clinical characteristics and endoscopic findings associated with blastocystis hominis in healthy adults. | ninety-nine individuals with stools positive for blastocystis hominis but negative for other parasites were identified from medical records of healthy adults who had received a physical examination at taipei veterans general hospital from november 2000 to october 2002. the medical records of these 99 positive cases and 193 randomly selected controls, matched for age, sex, and date of examination, were retrospectively reviewed. the pathogenicity of b. hominis could not be demonstrated due to a la ... | 2003 | 13677378 |
| [influence of the protozoa blastocystis hominis on hepatic function]. | 2003 | 12886585 | |
| [prevalence of microsporidia and other intestinal parasites in patients with hiv infection, bogota, 2001]. | opportunistic intestinal parasites are a common cause of diarrhea in hiv-infected patients. to determine the prevalence of microsporidia and other opportunistic parasites infecting hiv patients in bogotá, colombia, 115 patients were examined for these infections during the year 2001. the institution and the sample percent from each are as follows: santa clara hospital, 33.0%; san pedro claver, 20.0%; simón bolívar hospital, 14.8%; san josé hospital, 13.9%; central de la policía hospital, 6.1%; c ... | 2003 | 14582330 |
| polypeptides associated with in vitro cyst formation of blastocystis hominis. | the objective of this study was to characterize the polypeptides associated with cysts of blastocystis hominis. this form is believed to be infective and plays a role in parasite resistance to anti-b. hominis drugs currently used for treatment of blastocystis associated diarrhea. cysts were induced through in vitro culture of the parasite in complete medium supplemented with bacterial extract with trypticase, metronidazole or doxycycline. sds-page analysis showed almost similar polypeptide patte ... | 2003 | 15115079 |
| [blastocystosis: nitazoxanide as a new therapeutic option]. | we report a case of a patient with aids and severe immunosuppression who developed diarrhea due to a vacuolar stage of blastocystis hominis. the patient was treated with nitazoxanide, a 5-nitrothiazole broad-spectrum antiparasitic agent. we obtained complete remission of symptoms and eradication of the parasite. nitazoxanide is a new treatment option for blastocystosis in aids patients. further studies to test its efficacy are needed. | 2003 | 12908045 |
| [human blastocystosis: prospective study symptomatology and associated epidemiological factors]. | an attempt has been made to contribute to the understanding of the symptoms and factors associated with the blastocystis hominis infection, as seen in persons seeking outside consultation from the dermatological and transmissible diseases department (dtdd) at the c.h.n.h. this is a case-control study carried out in people between the ages of 5 and 80 in a period from january to march 1999. the cases tested positive in parasitological tests for blastocystis hominis and were absent of other entero ... | 2003 | 12768212 |
| hematological effects of blastocystis hominis infection in male foreign workers in taiwan. | blastocystis hominis found in stool specimens has been the most frequently identified parasite among foreign workers from southeast asia in taiwan since 1992. the prevalence of b. hominis was 14.1% in this study. in their quarantine physical examinations, 121 male thai workers were examined hematologically and screened for stool parasites using the merthiolate-iodine-formaldehyde concentration method. hematological values were compared in workers with and without a b. hominis infection. multiple ... | 2003 | 12743803 |
| [treatment of blastocystis hominis protozoosis with baitouweng decoction: a report of two cases]. | 2003 | 15339549 | |
| zoonotic genotypes of blastocystis hominis detected in cattle and pigs by pcr with diagnostic primers and restriction fragment length polymorphism analysis of the small subunit ribosomal rna gene. | twenty two blastocystis isolates from cattle and pigs were genotyped by pcr using diagnostic primers, and the homology among isolates was then confirmed by restriction fragment length polymorphism (rflp) analysis of the small subunit ribosomal rna gene. two distinct genotypes, subtypes 1 and 3, were detected in one and two of the ten isolates from cattle, and three and one of the 12 isolates from pigs, respectively. the rflp profiles of all isolates designated as subtype 1 and subtype 3 were ide ... | 2003 | 12756546 |
| prevalence of intestinal parasites among individuals with allergic skin diseases. | the prevalence of intestinal protozoans and helminths in stool samples of individuals with allergic cutaneous symptoms was evaluated to study a possible link between parasites and allergy. altogether, 218 patients who had chronic urticaria, atopic dermatitis, or pruritus of unknown origin were included in the study. standard laboratory tests for the detection of allergic etiology were performed for all patients. the presence of intestinal parasites was investigated using microscopy, immunofluore ... | 2003 | 12880246 |
| [study on morphology of blastocystis hominis in culture and from diarrhea patients]. | to study morphology of different stage blastocystis hominis (b. h) for establishing a base in the research of life cycle and pathogenicity of b. h and providing information for clinical laboratory. | 2003 | 12884629 |
| intestinal parasites of the pacific. | information about intestinal parasites in hawaii and the pacific is not current. we reviewed reports on fecal samples obtained from two laboratories and found recovery rates of 9.3% in hawaii, 14.2% in saipan, 18% in rota and 9.5% in guam. the most frequently identified parasites were blastocystis hominis (7.6%), giardia lamblia (1.2%), and entamoeba coli (0.7%). although the incidence and types of organisms have changed with time, physicians in hawaii should continue looking for intestinal para ... | 2003 | 14631593 |
| blastocystis hominis--an emerging cause of diarrhoea in renal transplant recipients. | blastocystis hominis is an intestinal protozoan that is emerging as an important cause of diarrhea in the immunosuppressed population. we report two cases of diarrhea caused by this organism in renal transplant recipients. the infection was diagnosed promptly by careful stool examination and treated successfully with metronidazole. these case report highlights the fact that unusual parasites like blastocystis hominis should be looked for and treated in cases of diarrhea occurring in renal transp ... | 2003 | 14621046 |
| blastocystis hominis among food vendors in xochimilco markets. | blastocystis hominis is a pathogenic protozoon that lives in the human bowel and causes diarrhea: the mode of transmission is a passive one, through the ingestion of stool-contaminated water or foods that contain infective forms of the parasite. the purpose of this study is to report the prevalence of blastocystis hominis among food vendors in the markets within the xochimilco jurisdiction, mexico city, mexico. a cross-sectional study was conducted in which food vendors answered an epidemiologic ... | 2003 | 17061516 |
| a cross-sectional study of intestinal parasitic infections in a rural district of west china. | parasitic infections are widespread in rural areas of west china. the remote and humid environment, traditional ways of life, contaminated potable water and limited health services all contribute to the transmission and persistence of fecal parasites. | 2003 | 18159450 |
| [emphasizing of blastocystis hominis on culture media]. | the aim of our study was to determine the frequency of blastocystis hominis in the stool specimens sent to the parasitological laboratory of the mureş county hospital between october 2003 and may 2004. the 124 inoculated specimens showed positive values in 41.93%. after an incubation in anaerobic conditions at 37 degrees c for 24, 72 and 96 hours in liquid and biphasic media, the last proved to be better (69,24%) at an incubation time of 72 hours. | 2004 | 16752753 |
| point prevalence of cryptosporidium, cyclospora, and isospora infections in patients being evaluated for diarrhea. | from march to september 2001, 315 specimens from "nonrepeat" patients that were submitted for ova and parasite examination were stained using the kinyoun modified acid-fast stain to detect the intestinal coccidians. four patients (1.3%) were infected with coccidians, 2 with cryptosporidium parvum and 2 with cyclospora cayetanensis. no infections with isospora belli were detected. in comparison, 15 patients (4.8%) had infections with one or more intestinal parasites detected by routine trichrome ... | 2004 | 15272527 |
| irritable bowel syndrome: in search of an etiology: role of blastocystis hominis. | this study was designed to examine stool specimens of irritable bowel syndrome (ibs) patients for blastocystis hominis, a common intestinal parasite. one hundred fifty patients were enrolled, 95 ibs cases and 55 controls. these patients provided a medical history, and underwent physical and laboratory evaluations that included stool microscopy and culture for b. hominis and colonoscopy. the 95 cases (51 males and 44 females) had a mean +/- sd age of 37.8 +/- 13.2 years. stool microscopy was posi ... | 2004 | 15100450 |
| comparison of methods for detecting blastocystis hominis. | in order to determine the comparative sensitivity of two methods of detecting blastocystis hominis and to investigate the seasonality of infection with this enteric protozoan parasite, the present study was conducted. in each of two 3-month periods representing winter, spring (february-april) and summer (july-september), 500 routine stool submissions were examined for b. hominis using microscopy following either formol-ether concentration or in vitro culture using jones' medium. the organism was ... | 2004 | 15168139 |
| surveillance for enteric parasites among u.s. military personnel and civilian staff on joint task force base-bravo in soto cano, honduras and the local population in comayagua and la paz, honduras. | a study was conducted in honduras to address whether military personnel assigned to joint task force-bravo in soto cano, honduras, routinely acquire parasite infections, and the results were compared with those collected from civilian base workers and the general local population in the nearby towns of comayagua and la paz. results from this study report 21 species of enteric parasites among hondurans living in comayagua and la paz, 13 species among local hondurans working as base civilian perso ... | 2004 | 15605940 |
| [digestive parasitism in sousse area. results of a 16 years retrospective study]. | to report the prevalence and type of intestinal parasites together with their kinetics in sousse region. our retrospective study concern data from the examination of 56,268 stool samples and 7552 tape tests, performed in the laboratory of parasitology of f. hached sousse hospital from 1st january 1987 up to 31 december 2002. we observed an overall parasite prevalence of 31.5%. most common parasites were protozoa, giardia lamblia, dientamoeba fragilis and blastocystis hominis being the most frequ ... | 2004 | 15453028 |
| fecal-oral transmission of the cyst form of blastocystis hominis in rats. | the infectivity of two blastocystis hominis strains, rn94-9 and nih:1295:1, was examined in 3-week-old spf wistar rats. the nih:1295:1 strain, originally isolated from a guinea pig, was only able to infect rats via intracecal inoculation of the cultured organisms, while the rn94-9 strain, originally isolated from a laboratory rat, was able to infect rats by oral inoculation of the cultures due to the presence of a cystic form in the in vitro culture. since many cysts were discharged in the feces ... | 2004 | 15480786 |
| chronic urticaria and blastocystis hominis infection: a case report. | we report a case of a 45 year old woman which fulfilled the criteria of chronic urticaria (remitting and relapsing bouts of erythematous and pruriginuos lesions without angioedema, lasted four months). cutaneous manifestations were not related to a specific inducing factor, had no benefit from antihystamine and steroid drugs and were associated sometimes with mild gastroentric disorders. patient was submitted to extensive clinical, laboratory and intrumental investigations which permit to exclud ... | 2004 | 15368795 |
| caspase-3-like protease influences but is not essential for dna fragmentation in blastocystis undergoing apoptosis. | blastocystis hominis undergo apoptosis after treatment with a cytotoxic monoclonal antibody (mab), 1d5, by mechanisms that are not fully understood, although our previous study demonstrated that caspase-3-like protease activity is involved. to elucidate the mechanism of mab 1d5-induced apoptosis, we inhibited blastocystis caspase-3-like protease to investigate if there would be a concomitant decrease in in situ dna fragmentation. however, mab 1d5-induced apoptosis, evidenced by dna fragmentation ... | 2004 | 15540464 |
| epidemiological survey of giardia spp. and blastocystis hominis in an argentinian rural community. | the aim of this study was to relate personal data, socio-cultural and environmental characteristics, and the presence of symptoms/signs with the frequencies of giardia spp. and blastocystis hominis among a rural population in buenos aires province, argentina. of the surveyed population (350), 3.7% were infected with only giardia spp. or 22.9% with b. hominis, and 2.3% were infected with both protozoa. the frequency of infection according to sex; 6.1% of males were infected and 1.6% of females by ... | 2004 | 15381860 |
| metronidazole induces programmed cell death in the protozoan parasite blastocystis hominis. | previous studies by the authors have shown that the protozoan parasite blastocystis hominis succumbed to a cytotoxic monoclonal antibody with a number of cellular and biochemical features characteristic of apoptosis in higher eukaryotes. the present study reports that apoptosis-like features are also observed in growing cultures of axenic b. hominis upon exposure to metronidazole, a drug commonly used for the treatment of blastocystosis. upon treatment with the drug, b. hominis cells displayed k ... | 2004 | 14702395 |
| prevalence of enteric parasites in pet macaques in sulawesi, indonesia. | on the indonesian island of sulawesi, nonhuman primate pets come into frequent contact with humans, presenting the possibility of zoonotic and anthropozoonotic disease transmission. we collected fecal samples from 88 pet macaques representing six of the seven macaque species currently recognized as endemic to sulawesi (macaca nigra, m. nigrescens, m. hecki, m. tonkeana, m. maura, and m. ochreata) as well as two non-endemic species (m. fascicularis and m. nemestrina) in order to determine the pre ... | 2004 | 14983465 |
| intestinal parasites in children from three west texas border communities. | 2004 | 15724569 | |
| changing patterns in intestinal parasitic infections among southeast asian laborers in taiwan. | in order to determine whether there are changing patterns in intestinal parasitic infections among foreign laborers in north taiwan, one fecal specimen was obtained from each of 1,569 laborers and examined by the formalin-ethyl acetate sedimentation technique. the prevalence of intestinal parasitic infections was 8.2%. females (11.7%) had a significantly higher prevalence than males (6.9%), although there was no significant difference between filipinos (7.7%), thais (8.3%) and indonesians (12.5% ... | 2004 | 14586642 |
| prevalence of intestinal parasitic pathogens among hiv-positive individuals in iran. | parasites are important enteric pathogens among patients with human immunodeficiency virus (hiv) infection. there have been very few reports on the prevalence of intestinal parasites among such patients in iran. to determine the prevalence of intestinal parasites among hiv-positive individuals, we collected single stool samples and analyzed them for detection of various intestinal parasites from 206 hiv-positive individuals with different immune status visited in different medical centers in ira ... | 2004 | 15623953 |
| pcr-based identification of zoonotic isolates of blastocystis from mammals and birds. | the genotype of blastocystis isolated from humans and animals is highly polymorphic. therefore, it is important to compare the genotypes of blastocystis isolates from humans and animals to determine the zoonotic potential of animal isolates. pcr-based genotype classification using known sequence-tagged site (sts) primers allows identification of zoonotic isolates of animal origin. to this end, 51 isolates from monkeys, cattle, pigs, chickens, quails and pheasants were subjected to genotype analy ... | 2004 | 15133074 |
| [prevalence of blastocystis hominis among food handlers from caroni municipality, bolivar state, venezuela]. | a cross-sectional survey was conducted to determine the prevalence of blastocystis hominis infection in a random sample of apparently healthy food handlers. a total of 415 individuals attending the manoa urban outpatient clinic (caroní municipality, bolívar state, venezuela) in the adult hygiene program and who requested health certification to work as food handlers were studied. stool samples obtained by spontaneous evacuation were examined by direct microscopy and the willis concentration meth ... | 2004 | 14999338 |
| serum zinc and magnesium levels in patients with blastocystosis. | the aim of the study was to investigate the total content of the essential elements of zinc and magnesium levels in patients infected with blastocystis hominis. zinc and magnesium concentrations were measured in 52 patients who were positive for the intestinal parasite blastocystis hominis. scores were obtained for the positives and their age- and sex-matched 60 blastocystis hominis-negative healthy controls. for comparison of two groups of continuous variables, the independent samples t-test wa ... | 2004 | 15051897 |
| a survey of blastocystis infection in anuran and urodele amphibians. | blastocystis infection in amphibians was surveyed in three species of anuran and one species of urodele amphibians captured at two distinct locations in japan. all three species of frogs were highly infected with blastocystis, while 69 individual urodele newts, cynopus pyrrhogaster, were negative for infection. eleven blastocystis isolates (47.8%) were recovered from 23 rana nigromaculata leopard frogs. twenty-three (92%) of 25 rana catesbeiana bullfrogs and all (100%) of 24 bufo japonicus japon ... | 2004 | 15177714 |
| isolation and characterization of the mitochondrion-like organelle from blastocystis hominis. | blastocystis hominis in an unusual protozoan parasite of the human intestinal tract. previous studies have described the presence of mitochondrial-like structures despite the anaerobic nature of the organism. in this study, we describe a simple and rapid technique to isolate and characterize mitochondrion-like organelles (mlo) from b. hominis. the parasite was disrupted using glass beads and the mlo were collected and purified using a sucrose gradient. negative staining and transmission electron ... | 2004 | 15177908 |
| evidence of waterborne transmission of blastocystis hominis. | a cross-sectional study was performed in february 2001 to evaluate the prevalence and risk factors of blastocystis hominis infection in army personnel who resided in an army base in chonburi, thailand. a total of 904 army personnel were enrolled in this study. short-term in vitro cultivation was used to detect b. hominis in stool samples. in this population, b. hominis was the parasite most frequently found, and was identified in 334 of 904 stool specimens (36.9%). a significant association betw ... | 2004 | 15211009 |
| the usefulness of short-term in vitro cultivation for the detection and molecular study of blastocystis hominis in stool specimens. | when in vitro cultivation was used as the 'gold standard' for the detection of blastocystis hominis in stool specimens, simple smear and trichrome staining showed sensitivities of 16.7% and 40.2% and specificities of 94% and 80.4%, respectively. in vitro cultivation also enhanced pcr amplification for the detection of b. hominis in stool specimens. our data show the usefulness of in vitro cultivation for the detection and molecular study of b. hominis in stool specimens. | 2004 | 15243800 |
| in vitro susceptibility of blastocystis hominis isolated from patients with irritable bowel syndrome. | this study aims to determine the growth pattern and in vitro susceptibility of clinical isolates of blastocystis hominis to different concentrations of metronidazole, furazolidone and ciprofloxacin. stool specimens from 25 consecutive patients with irritable bowel syndrome presenting to the gastroenterology department of aga khan university hospital between january and may 2003 are examined by microscopy and cultured for b. hominis. drug susceptibility assays are performed for metronidazole, fur ... | 2004 | 15250669 |
| [blastocystosis: a high proportion of cases found in schoolchildren of são paulo, state of são paulo, brazil]. | as a part of medical assistance activities, parasitological examination of fecal samples from 227 school children from a public institution of são paulo (sp) revealed a rather high proportion of results positive for blastocystis hominis. other protozoan and worm species were markedly scarcer, a peculiar situation according to our judgement. it is acknowledged that blastocystosis is still largely an indefinite and controversial subject, which deserves adequate analysis to avoid drawbacks in the s ... | 2004 | 15334272 |
| microorganisms and parasites in chronic infective diarrhea. | to reveal the pattern of microorganisms in chronic infective diarrhea cases. | 2004 | 15931720 |
| blastocystis hominis infection in irritable bowel syndrome patients. | irritable bowel syndrome (ibs) is a functional bowel disorder in which abdominal pain is associated with a defect or a change in bowel habits. subtle inflammation, especially after infectious enteritis, has been sometimes suspected as one mechanism of pathogenesis. this research was performed (1) to evaluate the prevalence of parasitic infections and (2) the possible association of ibs and parasitic infections. fifty-nine ibs patients were recruited using symptom-based criteria (rome criteria ii ... | 2004 | 15689092 |
| [blastocystosis is human protozoosis]. | 2004 | 15689141 | |
| molecular and phylogenetic analysis of blastocystis isolates from various hosts. | blastocystis hominis is a protozoan parasite found in humans. b. hominis-like organisms have been found in a variety of animals, but have been called blastocystis sp. because the isolates from animals were indistinguishable from b. hominis morphologically. recent molecular studies show that some isolates from animals have genetic similarity with b. hominis. however, it has been unclear whether the isolates from animals have zoonotic potential or not. in the present study, the ssurdna of 19 blast ... | 2004 | 15041098 |
| polymerase chain reaction-based genotype classification among human blastocystis hominis populations isolated from different countries. | since the genotype of human blastocystis hominis isolates is highly polymorphic, pcr-based genotype classification using known sequenced-tagged site (sts) primers would allow the identification or classification of different genotypes. five populations of human b. hominis isolates obtained from japan, pakistan, bangladesh, germany, and thailand were subjected to genotype analysis by using seven kinds of sts primers. ninety-nine out of 102 isolates were identified as one of the known genotypes, w ... | 2004 | 14598169 |
| cryopreservation of protozoan parasites. | conventional methods for the propagation and preservation of parasites in vivo or in vitro have some limitations, including the need for labor, initial isolation and loss of strains, bacterial, and fungal contamination, and changes in the original biological and metabolic characteristics. all these disadvantages are considerably reduced by cryopreservation. in this study, we examined the effects of various freezing conditions on the survival of several protozoan parasites after cryopreservation. ... | 2004 | 14969677 |
| infection status of intestinal parasites in children living in residential institutions in metro manila, the philippines. | a small scale survey was performed to know the infection status of intestinal parasite in children of the residential institutions and street communities in metro manila, philippines. a total of 284 stool samples from 11 institutions and 3 street communities was examined by the formalin-ether concentration method. the scotch tape anal swab was adapted to 121 children to investigate the infection status of enterovius vermicularis. it was found out that 62.0% of the children examined were positive ... | 2004 | 15181346 |
| blastocystis hominis as a cause of hypoalbuminemia and anasarca. | the protozoan blastocystis hominis has been considered nonpathogenic, but this classification has come under scrutiny in light of reports in the medical literature indicating it could be the cause of intestinal disorders and, in one case, hypoalbuminemia. reported here is a severe case of infection with b. hominis that caused acute gastroenteritis with prolonged diarrhea, hypoalbuminemia and anasarca. the diagnosis was based on the parasitological finding, since no other pathological evidence wa ... | 2004 | 15112065 |
| zoonotic intestinal parasites in papio anubis (baboon) and cercopithecus aethiops (vervet) from four localities in ethiopia. | a total of 59 faecal samples from ranging papio anubis (baboons) and another 41 from cercopithecus aethiops (vervet) from the rift valley areas of ethiopia were microscopically examined to determine the prevalence and species of major gastro-intestinal parasites of zoonotic importance. faecal smears were prepared from fresh faecal samples, stained using modified ziehl-neelsen method and microscopically examined. about 3 gm of the dropping was also preserved separately in clean and properly label ... | 2004 | 15099809 |
| cutaneous lesions in blastocystis hominis infection. | 2004 | 15339085 | |
| [investigation of intestinal parasites in aids patients]. | in this study, enteric parasites were investigated in the stool samples of 38 aids patients (23 with chronic diarrhea and 15 without diarrhea) prospectively. at least three stool samples from each patient were investigated microscopically for ova or trophozoites. the samples were concentrated with formol-ether method and wet preparations stained with lugol were examined. in addition, the concentrated samples were stained with modified asid-fast (kinyoun's), rhodamine-auramine, modified trichrom ... | 2004 | 15293911 |
| enteric infection in relapse of inflammatory bowel disease: importance of microbiological examination of stool. | previous reports have suggested that diarrhoeal relapses of inflammatory bowel disease (ibd) may be associated or confused with enteric infection, and that treatment of such infections with appropriate antibiotics may be beneficial. to re-evaluate the suggestion that enteric infection is rare and microbiological testing of stool not routinely necessary in patients presenting with relapse of ibd, we have reviewed the incidence of concurrent infection in patients presenting in relapse over a recen ... | 2004 | 15256979 |
| enteropathogens associated with cases of gastroenteritis in a rural population in jordan. | stool specimens were collected from 180 patients belonging to a population of recently settled bedouins in jordan who presented with acute or persistent diarrhoea and other symptoms, and from 100 non-diarrhoeal controls. all samples were examined for parasites and bacterial pathogens by culture and pcr. bacterial isolates were tested for their susceptibility to common antimicrobial agents. pathogens and potential enteropathogens were identified from 140 (77.8%) of the patients, with more than on ... | 2004 | 15214876 |
| protozoal infections in the developmentally disabled: often overlooked cause of rectal digging and fecal smearing. | 2004 | 15226486 | |
| parasites in nosocomial diarrhoea: are they underestimated? | nosocomial diarrhoea, defined as diarrhoea occurring more than 72 h after hospital admission, is reported to account for <1% of endemic nosocomial infections and 17% of epidemic nosocomial infections. the yield of diagnoses from stool cultures in nosocomial diarrhoea is low, and information regarding the role of parasites is limited. we conducted a study to determine the responsible bacterial and parasitological pathogens from nosocomial diarrhoea cases in our 2000-bed tertiary care facility ove ... | 2005 | 15949620 |
| comparison of two methods (microscopy and enzyme-linked immunosorbent assay) for the diagnosis of amebiasis. | diagnosis of amebiasis is usually performed on a clinical basis alone in most endemic countries having limited economic resources. this epidemiological study was conducted using modern diagnostic tests for amebiasis in the southeastern region of turkey, an endemic area for amebiasis. the population of this study included patients with symptomatic diarrhea/dysentery attending both yuzuncu yil university, van and harran university, sanliurfa, turkey. a total of 380 stool specimens were collected a ... | 2005 | 15955332 |
| [intestinal parasitic diseases in hiv-infected patients in uzbekistan]. | intestinal parasitic diseases were diagnosed in 100 hiv-infected patients at different stages of disease (its asymptomatic form, persistent generalized lymphoadenopathy, pre-aids, and aids) (group 1), 100 tashkent residents (group 2), and 349 patients with gastrointestinal diseases, allergic dermatoses, and skin depigmentation foci (group 3). the hiv-infected patients were found to have virtually all parasites, such as giardia lamblia, cryptosporidium parvum, chilomastix mesnili, entamoeba coli, ... | 2005 | 16212098 |
| protozoan programmed cell death--insights from blastocystis deathstyles. | programmed cell death (pcd) is an essential process in the growth and development of multicellular organisms. however, accumulating evidence indicates that unicellular eukaryotes can also undergo pcd with apoptosis-like features. the protozoan parasite blastocystis hominis has been reported to exhibit both apoptotic and non-apoptotic features of pcd when exposed to a variety of stimuli. recent observations of pcd pathways in blastocystis suggest that this protozoan, as is the case with its multi ... | 2005 | 16223601 |
| no correlation between clinical symptoms and blastocystis hominis in immunocompetent individuals. | abstract background and aim: previous reports regarding the clinical significance and pathogenicity of blastocystis hominis have been contradictory. the aim of this study was to examine the association between blastocystis and gastrointestinal symptoms in immunocompetent individuals. methods: we monitored over 2800 healthy people for a period of 15 months, and took stool specimens during both asymptomatic periods and during periods of gastrointestinal symptoms. results: after exclusion of indivi ... | 2005 | 16105126 |
| blastocystis hominis and the evaluation of efficacy of metronidazole and trimethoprim/sulfamethoxazole. | blastocystis hominis is commonly found in the intestinal tract of humans. although the pathogenicity of this unicellular parasite is controversial, anti-protozoan agents are usually administered to infected individuals. at present, the first choice of chemotherapeutic agent is metronidazole as described in the literature. in this study, we evaluated the effects of metronidazole and trimethoprim/sulfamethoxazole (tmp/smx) on persons infected with b.hominis. a total of 104 subjects infected with b ... | 2005 | 15915364 |
| disparities in parasitic infections, perceived ill health and access to health care among poorer and less poor schoolchildren of rural côte d'ivoire. | differences in the state of health between rural and urban populations living in africa have been described, yet only few studies analysed inequities within poor rural communities. we investigated disparities in parasitic infections, perceived ill health and access to formal health services among more than 4000 schoolchildren from 57 primary schools in a rural area of western côte d'ivoire, as measured by their socioeconomic status. in a first step, we carried out a cross-sectional parasitologic ... | 2005 | 15655013 |
| the association of blastocystis hominis and endolimax nana with diarrheal stools in zambian school-age children. | to determine the prevalence of endoparasites and their association with diarrhea, a survey was conducted in the southern province of zambia that used conventional and molecular techniques applied to stool and urine samples from school-age children (n = 93). almost half of the stools (49.5%) were diarrhetic. the overall prevalence of endolimax nana, schistosoma haematobium, blastocystis hominis, giardia lamblia, cryptosporidium parvum, encephalitozoon intestinalis, and strongyloides stercoralis w ... | 2005 | 16249910 |
| molecular characterization of blastocystis isolates in the philippines by riboprinting. | extensive genomic polymorphism has been demonstrated among morphologically identical blastocystis isolates. to this end, 32 blastocystis isolates from the philippines (12 from humans, 12 from pigs and 8 from chickens) were analyzed genetically by riboprinting or restriction fragment length polymorphism (rflp) analysis of polymerase chain reaction (pcr) amplified small subunit rdna. three distinct riboprint patterns were observed from the hinfi digestion, while four patterns resulted from the rsa ... | 2005 | 15886995 |
| programmed cell death in blastocystis hominis occurs independently of caspase and mitochondrial pathways. | we demonstrated previously that a cytotoxic monoclonal antibody (mab) 1d5 elicits a programmed cell death (pcd) response in blastocystis hominis and showed that caspase-3-like protease influences but is not essential for pcd in mab 1d5-treated b. hominis. we also showed that mitochondrial dysregulation played a role in cell death. in the current study, we further analyzed the signaling pathways involved in pcd mediated by mab 1d5. b. hominis cells were treated with mab 1d5 or control mab 5, eith ... | 2005 | 15913879 |
| prevalence of blastocystis hominis among "healthy" food handlers in dammam, saudi arabia. | a prospective study was carried out to see the prevalence of b. hominis in food handlers in dammam, eastern province of saudi arabia. a total of 17073 food handlers were examined, 8.50% persons were positive for this organism in their stool. in 2.4% of the food handlers, b. hominis was the only parasite, whereas in 1.9% and 4.2% of the cases, this organism was found in association with pathogenic and non pathogenic parasites respectively. we could find the correlation between the dietary habits ... | 2005 | 16083054 |
| blastocystis hominis among symptomatic and asymptomatic individuals in talkha center, dakahlia governorate, egypt. | blastocystis hominis is now getting acceptance as an agent of human intestinal disease. b. hominis in stool samples of symptomatic and asymptomatic individuals was evaluated as a possible cause of gastro-intestinal troubles. b. hominis was found in 106 (10.1%) out of 1050 individuals examined from six villages and one city in talkha center, dakahlia governorate. the highest infection rate was in manshayt el-badawy village (25.47%), whereas talkha city showed the lowest rate (4.73%). age group 10 ... | 2005 | 16083074 |
| [distribution of intestinal parasites in children aged between 0 and 14 presenting at the laboratory of parasitology of the mustafa kemal university medical school.] | the aim of this study was to determine the parasite frequency in children from 0-14 years old who had presented at the parasitology laboratory of the mustafa kemal university medicine school complaining of gastrointestinal and anal pruritus. during the laboratory investigation, 561 fecal specimens and 534 cellophane tapes obtained from the patients were examined. after the microscope examination of 561 feces samples, it was found that 104 of these samples (from 50 boys and 54 girls) contained on ... | 2005 | 17124682 |
| [the distribution of intestinal parasites in students of the mustafa kemal university school of health.]. | intestinal parasites are an important national health problem in our country as in the rest of the world. in our study, the prevalence of intestinal parasites in female students (aged from 16-18 years) in the mustafa kemal university school of health was investigated. fecal samples and cellophane tape preparations were used for diagnosis. for this reason 142 fecal samples and 136 cellophane tape preparations were examined. one or more parasites were found in 65 (45.77%). fecal samples. the preva ... | 2005 | 17124683 |
| [distribution of intestinal parasites among patients who presented at the department of parasitology of the erciyes university medical school.] | in this study carried out from 2000-2004, a total of 34,883 stool samples were examined using native-lugol and flotation/sedimentation methods and 9,879 cellophane tape preparations were examined directly. intestinal parasites were found in 9,704 (27.8%) of the specimens. the parasites that were found and their prevalence is as follows: blastocystis hominis, 6,723 (19.3%); entamoeba coli, 1,007 (2.9%); giardia intestinalis, 892 (2.6%); entamoeba histolytica/e. dispar, 798 (2.3%); endolimax nana, ... | 2005 | 17124684 |
| [distribution of intestinal parasites in children from the 23 nisan primary school in hakkari.]. | this study was performed on children ranging from 6-14 years old coming from 23 nisan primary school in hakkari. in this study, a total of 114 stool samples from 60 male students and 54 female students were examined for intestinal parasites. stool containers were given to the students. after the stool containers were collected, they were taken to the faculty of medicine of the yüzüncü yil university and examined using native lugol and flotation methods. one or more intestinal parasites were foun ... | 2005 | 17124686 |
| blastocystis hominis and other intestinal parasites in a community of pitanga city, paraná state, brazil. | the objective was to estimate the prevalence of blastocystis hominis, to evaluate the effectiveness of different techniques for its diagnosis as well as to estimate the prevalence of other intestinal parasites in the community of campo verde, a district of pitanga. the work was carried out from august to october 2004. samples of feces from children and adults were collected and submitted to the techniques of direct wet mount, flotation in zinc sulphate solution, tube sedimentation, sedimentation ... | 2005 | 16138204 |
| prevalence and effectiveness of an education program on intestinal pathogens in food handlers. | to assess the prevalence of intestinal pathogens and the effectiveness of an education program in food handlers in a tertiary care hospital. | 2005 | 16850637 |
| parasitic zoonoses in papua new guinea. | relatively few species of zoonotic parasites have been recorded in humans in papua new guinea. a greater number of potentially zoonotic species, mostly nematodes, occur in animals but are yet to be reported from humans. protozoa is the best represented group of those infecting man, with giardia duodenalis, cryptosporidium parvum, cyclospora cayetanesis, toxoplasma gondii, sarcocystis spp., entamoeba polecki, balantidium coli and, possibly, blastocystis hominis. the only zoonotic helminths infect ... | 2005 | 15831107 |
| etiology of diarrhea in pediatric outpatient settings. | the frequency with which bacteria cause diarrhea evaluated in ambulatory settings is often unknown. we attempted to determine the microbiologic etiology of diarrhea in a private pediatric practice (site a) and a clinic serving largely immigrant children (site b) and to establish guidelines for bacterial culture. | 2005 | 15702043 |
| the effects of extracts from anti-diarrheic thai medicinal plants on the in vitro growth of the intestinal protozoa parasite: blastocystis hominis. | the activities of n-hexane, dichloromethane and methanol extracts from five anti-diarrheic thai medicinal plants, acacia catechu (fabaceae) resin, amaranthus spinosus (amaranthaceae) whole plant, brucea javanica (simaroubaceae) seed, piper longum (piperaceae) fruit and quercus infectoria (fagaceae) nut gall were tested against the in vitro growth of fresh isolates of the intestinal protozoan parasite, blastocystis hominis. the extracts at concentrations that ranged from 62.5 to 2000 microg/ml, w ... | 2005 | 15763365 |
| prevalence of blastocystis hominis infection in asymptomatic individuals from bangkok, thailand. | fresh stool examination was performed from 2,230 participants who enrolled in annual check-up programs of the faculty of medical technology, mahidol university in 1999-2000 and 2004. in this study, blastocystis hominis infection was diagnosed by culturing in jones' media. a total of 21% of fecal specimens (in 1999-2000) and 13.7% (in 2004) were positive for b. hominis. the vacuolated form was the predominant form found in culture solution after 48 hours of incubation. the distribution of infecti ... | 2005 | 16438173 |
| current infection rate of giardia lamblia in two provinces of thailand. | the aim of this study was to survey for the current rate of giardia lamblia infection in three different districts in two provinces of thailand, surin and samut sakhon, in march 2002, october 2003, and march 2004. two districts are rural areas and another is sub-urban. volunteers of any age from surin province and children aged between 5 to 7 years old from three secondary schools in samut sakhon were enrolled for the stool examination. the method used was stool examination by both simple smear ... | 2005 | 16438174 |
| [epidemiologic and laboratory assessments of etiologic implications of blastocystis hominis in gastrointestinal diseases]. | authors present the first laboratory and epidemiological results which reveal the circulation in a population of protozoan blastocystis hominis and its implication in the determinations of some gastrointestinal troubles, with fever, diarrhea and constipation, intense intestinal meteorism, associated with abdominal pain and cramps. out of the 3106 investigated patients, 9.7% presented b. hominis as a unique etiologic agent, with an increased prevalence in adults (74.3%) and women (65.3%). blastoc ... | 2005 | 16607843 |
| [prevalence of giardiasis and intestinal parasites in pre-school children from homes being attended as part of a state programme in armenia, colombia]. | determining the prevalence of giardiasis and intestinal parasitism in pre-school children from the instituto colombiano de bienestar familiar (icbf). | 2005 | 16396421 |
| [blastocystosis: a high prevalence of cases found in patients from health center of soledad, anzoategui state, venezuela]. | the parasitological examination of fecal samples from 98 patients from an ambulatory health center of soledad, anzoategui, venezuela revealed a rather high proportion of results positive for blastocystis hominis (46.9%). | 2005 | 16082488 |
| [experimental infection of mice with blastocystis hominis]. | to seek a better pathway and proper number of parasites for blastocystis hominis (b.h) infection in normal and immunocompromised icr mice. | 2005 | 16566218 |
| degradation of human secretory immunoglobulin a by blastocystis. | microbial immunoglobulin a (iga) proteases cleave human secretory iga, promoting the mucosal adhesion of pathogens. to investigate if the enteric protozoan blastocystis degrades human secretory iga, cell lysate and conditioned medium from two species were exposed to immunoglobulin a. secretory iga was cleaved by both cell lysate and conditioned medium with mainly cysteine proteinase activity in b. hominis b isolate and aspartic proteinase activity in b. ratii wr1 isolate. these findings suggest ... | 2005 | 16151742 |
| blastocystis hominis and travelers. | b. hominis is a unicellular protozoan commonly identified in stool specimens of travelers who have returned from tropical countries. it has a world-wide distribution, and infection is more common in developing countries compared to industrialized nations. clinical features of illness which have been attributed to blastocystis include nausea, anorexia, abdominal pain, flatulence and acute or chronic diarrhea. the preferred method of diagnosis is a permanently stained smear of an unconcentrated st ... | 2005 | 17292002 |
| effect of nitazoxanide in persistent diarrhea and enteritis associated with blastocystis hominis. | the aim of this study was to evaluate the efficacy of nitazoxanide for the treatment of diarrhea and enteritis associated with blastocystis hominis as the sole identified pathogen in children and adults from the nile delta of egypt. | 2005 | 16234044 |
| remission of delayed pressure urticaria after eradication of blastocystis hominis. | 2005 | 16191864 | |
| [the prevalence of intestinal parasites in four different special daytime nursing homes and day-centers in antakya.]. | in this study, the prevalence of intestinal parasites in 109 students (68 boys, 41 girls) in the 1-6 age group in four different special daytime nursing home and day-centers (special anakucaği day-time nursing home, special evim day-centre and day time nursing home, special doğa daytime nursing home and special yaren daytime nursing home) in the antakya district of hatay was investigated. for this reason 86 feces and 109 cellophane tape preparations were investigated. concentration of feces and ... | 2005 | 17160839 |
| [cyclosporosis: an emergent parasitosis. (ii) microbiological diagnosis through a new staining technique]. | describe a new staining technique for the diagnosis of cyclospora infection through lab tests. a differential microscopic diagnosis between cyclospora and blastocystis hominis is conducted. | 2005 | 16333388 |