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epidemiological, clinical, and diagnostic data on intestinal infections with entamoeba histolytica and entamoeba dispar among returning travelers.background: among travelers returning from the tropics, entamoeba spp. are among the most frequently detected intestinal parasites, mainly the presumable apathogenic e. dispar and the pathogenic e. histolytica. methods: among 5,378 travelers seeking diagnosis and treatment for intestinal infections at the travel clinic of the university of munich between 2005 and 2009, 103 laboratory-confirmed amebiasis cases were detected. the study compares the results of various diagnostic tests among these p ...201121717146
[the epidemiology research of blastocystis hominis in the dokuz eylül university medical faculty hospital between 2005 and 2009].objective: an investigation of blastocystis hominis (b. hominis) prevalance in 17756 patients with gastrointestinal system complaints who presented at the parasitology laboratory of the dokuz eylul university medical faculty hospital between january 2005 and december 2009 was carried out. methods: fecal samples of all patients were examined using the native-lugol and trichrome and kinyoun acid-fast staining method after sedimentation in fecal concentration tubes. results: one or more parasites w ...201121776590
[investigation of intestinal parasites among primary school students in kayseri-hacilar].objective: parasitic infections are an important health problem which affect children more than adults. especially in growth-age children, this leads to problems such as malnutrition, malabsorption, growth retardation and learning disabilities. in this study, 328 students who were investigated in two primary schools between the ages of 6 and14 in kayseri-hacilar region were analyzed for intestinal parasites. methods: stool samples were analyzed by light microscopy for the detection of helminths ...201121776595
study of blastocystis hominis isolates in urticaria: a case-control study.blastocystis hominis is a common intestinal parasite, with a prevalence in developing countries of up to 50%. the aim of this study was to investigate the association of this parasite with urticaria by determining the genotypic isotypes in the egyptian population. in total, 54 patients with urticaria and 50 controls were enrolled in the study. stool samples were examined and assessed by pcr. the parasite was detected in a significantly higher number (p < 0.001) of the patient group than the cont ...201121790724
[blastocystis hominis, brumpt 1912 is a mysterious organism belonging to intestinal protozoa]. 201121797069
Intestinal Parasite Screening in Internationally Adopted Children: Importance of Multiple Stool Specimens.Objective: Our goal was to determine the prevalence of intestinal parasites in internationally adopted children, to examine factors associated with infection, and to determine if evaluating multiple stool specimens increases the yield of parasite identification. Methods: We evaluated internationally adopted children with at least 1 stool specimen submitted for ova and parasite testing within 120 days after arrival to the United States. In children submitting 3 stool specimens, in which at least ...201121824880
ultrastructural insights into morphology and reproductive mode of blastocystis hominis.to understand well the morphology and reproductive mode of blastocystis hominis, with the help of transmission electron microscopy and scanning electron microscopy the ultrastructural details of b. hominis from fresh diarrheal specimens and cultured strains were observed. in both fecal samples and culture conditions, there were vacuolar and granular forms. in diarrhea, it exists in multivacuolar, avacuolar, and amoeboid forms. in the in vitro culture, vacuolar form could transform to granular fo ...201121845408
Opportunistic and other intestinal parasites among HIV/AIDS patients attending Gambi higher clinic in Bahir Dar city, North West Ethiopia.To determine the magnitude of opportunistic and non-opportunistic intestinal parasitic infections among HIV/AIDS patients in Bahir Dar.201121914548
a study on blastocystis hominis in food-handlers: diagnosis and potential pathogenicity.proper diagnosis of blastocystis hominis in not performed routinely in medical laboratories of developing countries; consequently clinical significance of this common intestinal protozoon is liable to remain unsettled. food-handlers are more prone to get and transmit this feco-oral infection. this work compared the sensitivity of direct diagnostic methods to detect b. hominis in stool, estimate the true prevalence among food-handlers in sirte-libya, to clarify the association between the parasit ...201121980782
No Advantage For Antibiotic Treatment Over Placebo In Blastocystis Hominis-Positive Children With Recurrent Abdominal Pain.OBJECTIVES:: The aim of the study was to investigate if recurrent abdominal pain (RAP) in Blastocystis hominis (B. hominis)-positive children can be treated successfully with trimethoprim-sulfamethoxazole (TMP/SMX). METHODS:: From October 2004 to December 2008 all patients referred to the Division of Gastroenterology and Nutrition of the University Children's Hospital Zurich because of RAP, and detection of B. hominis in stool samples as the only pathological finding after a standard work up, we ...201122002479
in vitro culture of blastocystis hominis in three liquid media and its usefulness in the diagnosis of blastocystosis.blastocystis hominis is a common protozoan in the human intestinal tract and can cause the so-called blastocystosis characterized by diarrhea. to date, its identification has depended on the discovery of vacuolar, granular, amoebic, or cystic forms in stool samples using wet mount smears, iodine staining, trichrome staining, or iron hematoxylin staining. the permanent staining methods provide more positive findings. however, mercuric chloride (hgcl(2))-based polyvinyl alcohol (pva) and schaudinn ...201122047715
waterborne transmission of protozoan parasites: review of worldwide outbreaks - an update 2004-2010.the present update gives a comprehensive review of worldwide waterborne parasitic protozoan outbreaks that occurred and were published globally between january 2004 and december 2010. at least one hundred and ninety-nine outbreaks of human diseases due to the waterborne transmission of parasitic protozoa occurred and were reported during the time period from 2004 to 2010. 46.7% of the documented outbreaks occurred on the australian continent, 30.6% in north america and 16.5% in europe. cryptospo ...201122048017
comparison of intestinal parasitic infection in newly arrived and resident workers in qatar.abstract:201122053720
blastocystis hominis as a contributing risk factor for development of iron deficiency anemia in pregnant women.intestinal parasitic infection increases the risk of developing iron deficiency anemia (ida) during pregnancy. the objective of this study was to assess blastocystis hominis as a contributing risk factor for development of ida in pregnant women. a total of 200 fecal specimens from 120 pregnant women with ida (mean hb = 9.6 g/dl), and 80 non-anemic controls were examined for blastocystis. fecal specimens were examined by the formalin/ethyl-acetate concentration technique, iron hematoxylin stainin ...201122167376
[Reactive arthritis caused by Blastocistys hominis.] 201122178255
[the distribution of intestinal parasites detected in the uludag university medical school hospital between 2005 and 2008].objective: intestinal parasite infection is still an important public health problem. in this study, patients (outpatients and in-patients) with various gastrointestinal system complaints presenting at various clinics of the uludag university medical faculty, from january 2009-december 2010 were investigated retrospectively for intestinal parasites. methods: parasitological examinations were done with native-lugol, cellophane-tape methods and trichrome staining in ambiguo ...201122198917
a parasitological survey of natural water springs and inhabitants of a tourist city in southeastern brazil.abstract the goals of this study were to investigate the occurrence of cryptosporidium oocysts and giardia cysts in main springs of campos do jordão, an important tourist city, in brazil and to gather the largest amount of parasitological data from autochthonous population that live in rural areas of this city. the membrane filtration technique followed by direct immunofluorescence assay was employed for concentration and visualization of waterborne protozoa. in the period between june 2003 an ...201222217166
effects of symptomatic and asymptomatic isolates of blastocystis hominis on colorectal cancer cell line, hct116.the pathogenesis of blastocystis hominis in human hosts has always been a matter of debate as it is present in both symptomatic and asymptomatic individuals. a recent report showed that b. hominis isolated from an asymptomatic individual could facilitate the proliferation and growth of existing cancer cells while having the potential to downregulate the host immune response. the present study investigated the differences between the effects of symptomatic and asymptomatic derived solubilized ant ...201222278727
the pathogenic role of different blastocystis hominis genotypes isolated from patients with irritable bowel syndrome.the pathogenic role of blastocystis hominis is still regarded by some as controversial. studies have been in progress for years to evaluate the role of blastocystosis in irritable bowel syndrome (ibs) and demonstrated that faecal carriage of b. hominis was frequent in these patients. this study attempted to distinguish different genotypes of b. hominis isolates obtained from patients with ibs and to evaluate their pathogenic potentials.201122305500
gastrointestinal parasites of captive and free-roaming primates at the afi mountain primate conservation area in calabar, nigeria and their zoonotic implications.a study on the gastrointestinal parasites among free-living and captive primates at the afi mountain, primate conservation area in calabar, nigeria was undertaken for the first time to ascertain their zoonotic implications. faecal samples were subjected to direct smear, floatation, quantitative estimation of helminth eggs (epg) and oocysts (opg), larval isolation and identification by modified baerman's technique and oocyst sporulation for specie identification. out of the 108 primates examined, ...201122308652
co-infection of hiv and intestinal parasites in rural area of china.intestinal parasite infections (ipis) are among the most significant causes of illness and disease of socially and economically disadvantaged populations in developing countries, including rural areas of the people's republic of china. with the spread of the human immunodeficiency virus (hiv) among rural chinese populations, there is ample scope for co-infections and there have been increasing fears about their effects. however, hardly any relevant epidemiological studies have been carried out i ...201222330320
infections of blastocystis hominis and microsporidia in cancer patients: are they opportunistic?chemotherapy can cause immunosuppression, which may trigger latent intestinal parasitic infections in stools to emerge. this study investigated whether intestinal parasites can emerge as opportunistic infections in breast and colorectal cancer patients (n=46 and n=15, respectively) undergoing chemotherapy treatment. breast cancer patients were receiving a 5-fluorouracil/epirubicin/cyclophosphamide (fec) regimen (6 chemotherapy cycles), and colorectal cancer patients were receiving either an oxal ...201222340948
prevalence of intestinal parasitic infections among mentally disabled children and adults of urmia, iran.the prevalence of intestinal parasites infection in institutions for mental retardation of urmia city, west azerbaijan province, iran was investigated.201022347245
intestinal parasitic infections in hosted saharawi children.literatures on intestinal parasitic infections in saharawi children were scarce and distributed in non parasitological journals. this was the first article that specifically highlighted on the prevalence of these infections in 270 saharawi children aged from 6 to 12 years hosted in spain. six different intestinal parasites were identified in this study and 78, 46, 40, 24, 13 and 5 were positive for giardia lamblia (29%), entamoeba coli (17%), blastocystis hominis (15%), endolimax nana (9%), hyme ...201122433884
opportunistic parasites among immunosuppressed children in minia district, egypt.a total of 450 stool samples were collected from inpatient and outpatient clinics of pediatric department, minia university hospital, minia district, egypt. two groups of patients were studied, including 200 immunosuppressed and 250 immunocompetent children. stool samples were subjected to wet saline and iodine mounts. a concentration technique (formol-ether sedimentation method) was carried out for stool samples diagnosed negative by wet saline and iodine mounts. samples were stained by 2 diffe ...201222451735
blastocystis hominis and recurrent megacolon: a causative or fortuitous association? 201222472370
diagnosis of soil-transmitted helminthiasis in an amazonic community of peru using multiple diagnostic techniques.an observational descriptive study was conducted in a shipibo-conibo/ese'eja community of the rainforest in peru to compare the kato-katz method and the spontaneous sedimentation in tube technique (sstt) for the diagnosis of intestinal parasites as well as to report the prevalence of soil-transmitted helminth (sth) infections in this area. a total of 73 stool samples were collected and analysed by several parasitological techniques, including kato-katz, sstt, modified baermann technique (mbt), a ...201222515992
prevalence of intestinal parasites in hiv-positive/aids patients.the aim of this study was to assess the prevalence of intestinal parasites among hiv-positive/aids patients. a control group comprising 30 apparently healthy hiv-negative individuals was included. of the 60 samples collected from the patients and examined, 34 (56.7%) presented with diarrhoea, while 26 (43.3%) had no reported cases of diarrhoea at the time of study. seventeen (50%) of the parasites detected in the 34 patients (those with history of diarrhoea) were diarrhoea-related causative agen ...200622589594
epidemiological survey of the prevalence of intestinal parasites among schoolchildren in sari, northern iran.parasitic infection is highly prevalent throughout the developing countries of the world. research on the prevalence of intestinal parasitic infections in various geographic regions is a prerequisite for the development of appropriate control strategies. a cross-sectional study was conducted to determine the prevalence of intestinal parasitic infections among schoolchildren in public primary and secondary schools in the urban areas of sari, mazandaran province, northern iran. the study was condu ...201222703897
determining the prevalence of intestinal parasites in three orang asli (aborigines) communities in perak, malaysia.this study was conducted to determine the prevalence of intestinal parasites among children and adult orang aslis (aborigines) from different locations in perak. faecal samples were collected and analyzed using the direct smear and formal ether sedimentation technique. some of the faecal samples were stained using the modified acid fast stain for cryptosporidium. nail clippings of the respondents and the soil around their habitat were also analyzed. of the 77 stool samples examined, 39 (50.6%) w ...201222735840
blastocystis hominis and endolimax nana co-infection resulting in chronic diarrhea in an immunocompetent male.blastocystis hominis and endolimax nana exist as two separate parasitic organisms; however co-infection with the two individual parasites has been well documented. although often symptomatic in immunocompromised individuals, the pathogenicity of the organisms in immunocompetent subjects causing gastrointestinal symptoms has been debated, with studies revealing mixed results. clinically, both b. hominis and e. nana infection may result in acute or chronic diarrhea, generalized abdominal pain, nau ...201222740811
prevalence of microsporidium and other intestinal parasites in children from malatya, turkey.parasite infections are common during the critical developmental period in children. the occurrences of intestinal parasites are also common in orphanage, nurseries and schools in turkey. the study was carried out to determine the percentage of microsporidium and intestinal parasites in children from malatya, turkey. this study was carried out at the department of parasitology of inonu university, turgut ozal medical center, during january-december 2006. totally, 1,181 stool samples were examine ...201122754014
[survey on co-infection with hiv and intestinal parasites in high prevalence areas of hiv/aids, china].to understand the co-infection status of hiv and intestinal parasites in a hiv/aids highly endemic area in china.201222799161
[monthly distribution of intestinal parasites detected in a part of western turkey between may 2009-april 2010-results of acid fast and modified trichrome staining methods].in this study, 5073 fecal specimens and cellophane tapes from patients were examined during the period of may 1, 2009-april 30, 2010 in the parasitology laboratory of the ege university medical school.201222801909
[the distribution of intestinal parasites in people admitted to the yüzüncü yıl university parasitology laboratory of health research and training hospital, in 2009].this study was performed to present the distribution of intestinal parasites in parients admitted to the parasitology laboratory of the health research and training hospital of yüzüncü yıl university in 2009.201222801916
[genotype analysis and isoenzyme patterns of ten isolates of blastocystis hominis from guangxi].to analyze genotypes and lactate dehydrogenase (ldh) and esterase (est) patterns in 10 isolates of blastocystis hominis collected from guangxi.201222913187
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.200323011980
[survey on blastocystis hominis infection in hiv positive individuals in fuyang city, anhui province].to understand the epidemiological characteristics of co-infection of hiv and blastocystis hominis and its risk factors.201223012954
a hospital-based study of epidemiological and clinical data on blastocystis hominis infection.blastocystis hominis is a foodborne protozoan found in the human feces worldwide. one hundred and ninety-nine individuals with stool samples positive for b. hominis were identified from a pool of 14,325 patient stools collected between 2003 and 2010 from srinagarind hospital in thailand. the medical records of patients were reviewed for demographic and clinical data. of the 85 patients (42.7%) who had b. hominis infection with no co-infections, 42.5% experienced gastrointestinal symptoms. abdomi ...201223075461
enteric protozoan parasites in rural areas of bandar-abbas, southern iran: comparison of past and present situation.the main goal was to address the prevalence of enteric protozoan parasites in rural areas of bandar-abbas, southern iran and to compare the results with the only conducted study in 1978.201123113059
parasitic infection of the digestive tract in children in a regional hospital center in gharb (kenitra, morroco): some epidemiological features.intestinal parasites are very common in children. we propose to study the prevalence and epidemiological profile of the port of intestinal parasites in 300 children hospitalized in the regional hospital of gharb area (kenitra, morocco) from june to december 2007. this study identified 11 intestinal parasites. of the 300 children, 157 at least one intestinal have parasitism was 52.3% with 91 boxes of poly-parasitism. among the intestinal protozoan identified, is the first amebiasis intestinal par ...201123120932
intestinal parasite infections in immigrant children in the city of rome, related risk factors and possible impact on nutritional status.parasitic diseases can represent a social and economic problem among disadvantaged people--even in developed countries. due to the limited data available concerning europe, the aims of the present study were to evaluate the presence of parasites in immigrant children and the risk factors favouring the spread of parasites. subsequently, the possible correlation between nutritional status and parasitic infections was also investigated.201223168023
a study on parasites in mexican rheumatic disease patients.blastocystis hominis is a common human parasite with infection rates up to 50% in developing countries, and giardiasis is the commonest intestinal one in mexico. no doubt, various parasites as giardia lamblia and entamoeba histolytica can cause rheumatic diseases. this study coproparasitoscopic analysis evaluated the cysts by b. hominis, g. lamblia, e. hartmani, e. coli and e. histolytica in mexican rheumatic disease patients. also, elisa was used to detect e. histolytica, ascaris lumbricoides, ...201223214207
[blastocystis hominis in symptomatic celiac patients].celiac disease (ec) not diagnosed or treated affect histological, immunological and nutritional status of patients who suffer it. these changes allow infection by parasites that cause no symptoms in immunocompetent patients, such as blastocystis hominis (bh). objetive. to analyze the presence of bh in symptomatic celiac patients and describe the clinical, histological, immune and nutritional status in these patients. material and method an observational descriptive cross sectional study was perf ...201223214346
outbreak of gastrointestinal illness during operation new horizons in pisco, peru, july 2012.in july 2012, the u.s. naval medical research unit no. 6 investigated an outbreak of gastrointestinal illness characterized by diarrhea among u.s. service members participating in operation new horizons in pisco, peru. overall, there were 25 cases of self-reported diarrheal illness among 101 respondents to a questionnaire (attack rate: 24.8%). personnel who consumed food that was prepared at the two hotels where they were lodged were more likely to report diarrhea than those who did not eat at t ...201223231049
intestinal protozoan parasitic infection among school children.intestinal protozoan parasitosis is highly prevalent among general population, majority of them are children. the objective of the study is to find out the prevalence of intestinal protozoan infection in school children of sindhuli.201223281452
broad distribution of tpi-gapdh fusion proteins among eukaryotes: evidence for glycolytic reactions in the mitochondrion?glycolysis is a central metabolic pathway in eukaryotic and prokaryotic cells. in eukaryotes, the textbook view is that glycolysis occurs in the cytosol. however, fusion proteins comprised of two glycolytic enzymes, triosephosphate isomerase (tpi) and glyceraldehyde-3-phosphate dehydrogenase (gapdh), were found in members of the stramenopiles (diatoms and oomycetes) and shown to possess amino-terminal mitochondrial targeting signals. here we show that mitochondrial tpi-gapdh fusion protein genes ...201223284996
prevalence of intestinal protozoa infection among school-aged children on pemba island, tanzania, and effect of single-dose albendazole, nitazoxanide and albendazole-nitazoxanide.pathogenic intestinal protozoa infections are common in school-aged children in the developing world and they are frequently associated with malabsorption syndromes and gastrointestinal morbidity. since diagnosis of these parasites is difficult, prevalence data on intestinal protozoa is scarce.201323289920
isospora belli in a patient with liver transplantation.isospora belli is an opportunistic protozoon which should be monitored in patients with gastrointestinal complaints such as abdominal pain, nausea and diarrhoea, in both immune-compromised and immune-competent patients. our case was a 35 year-old male patient who had received a liver transplant because of cirrhosis and hepatic fibrosis. a diarrhoeic stool sample of the patient was sent to the laboratory for microbiological and parasitological analyses. faecal occult blood was positive and bacter ...201223339948
blastocystis hominis associated acute urticaria.acute urticaria has many causative factors, which may include infections, medications (nonsteroidal anti-inflammatory drugs, antibiotics, contraceptives and others), insect bites, physical stimuli, allergens or underlying systemic disorders. blastocystis spp, although ubiquitous in developing countries, is rarely implicated in causing disease in the developed world. the authors present a case of acute urticaria caused by blastocystis hominis (protozoon parasite) in an elderly farmer in rural uni ...201323360793
intestinal parasitosis among yemeni patients with cancer, sana'a, yemen.the profile of intestinal parasitosis was assessed among patients on anticancer chemotherapy in sana'a city, yemen during the period from april to december 2011. a total of 206 patients (115 males & 91 females), aged 3 to 18 years with mean of 14.17 +/- 3.13 were subjected to stool examinations by different techniques. the overall rate of intestinal parasites was 63.1%. cryptosporidium parvum was the highest (30.1%) followed by g. lamblia (18.0%) and then c. cayetanensis (5.3%). blastocystis hom ...201223469646
prevalence of strongyloides stercoralis and other intestinal parasitic infections among mentally retarded residents in central institution of southern iran.to determine the prevalence of intestinal parasitic infections among mentally retarded residents of rehabilitation center of bandar abbas, hormozgan province, southern iran.201223569874
[expressions and significance of il-17 and il-23 in intestinal mucosa of mice infected with blastocystis hominis].to study the expressions of interleukin-17 (il-17) and interleukin-23 (il-23) in the intestinal mucosa of babl/c mice infected with blastocystis hominis.201223593840
development of loop-mediated isothermal amplification for rapid detection of entamoeba histolytica.to develop a loop-mediated isothermal amplification (lamp) assay for the detection of entamoeba histolytica e. histolytica, the causative agent of amebiasis.201323711706
parasitic prevalence in a suburban school of famaillá, tucumán, argentina.prevalence of intestinal parasites was investigated in rural primary school children in famaillá city, tucumán province, argentina. stool specimens from 149 school children were collected. the prevalence rate of intestinal parasite infections was 86.6%. no significant differences were observed in the distribution by age or by sex. blastocystis hominis was the most commonly found protozoan parasite (54.4%), followed by entamoeba coli (35.6%), giardia lamblia (24.8%), and others (16.7%). enterobiu ...201223724325
protozoa as a cause of recurrent abdominal pain in children.the aim of this study was to investigate whether protozoa can be identified as a cause of recurrent abdominal pain (rap), and whether protozoan infections can be recognized by a specific clinical presentation.201323783023
intestinal parasites in hiv-seropositive patients in the continental region of equatorial guinea: its relation with socio-demographic, health and immune systems factors.prevalence of intestinal parasitic infections in hiv-positive people and its association with clinical and socioeconomic factors has been investigated on the mainland of equatorial guinea, in order to define the precise measures for improvement of their quality of life.201323783759
hookworm with hypereosinophilia: atypical presentation of a typical disease.we describe a 55-year-old man returning from the philippines infected with a hookworm, the novel bacterium laribacter hongkongensis, and a blastocystis hominis and presenting with both gastrointestinal and neurological symptoms. the high eosinophilia caused by the hookworm infection resulted in both gastrointestinal and neurological symptoms, resembling a hypereosinophilic syndrome.201323809080
intestinal parasitic infections in suburban government schools, lak hok subdistrict, muang pathum thani, thailand.to provide baseline information of parasitic infections in 3 suburban government schools, lakhok subdistrict of muang pathum thani, thailand.201323827146
mitochondria-derived organelles in the diplomonad fish parasite spironucleus vortens.in some eukaryotes, mitochondria have become modified during evolution to yield derived organelles (mdos) of a similar size (hydrogenosomes), or extremely reduced to produce tiny cellular vesicles (mitosomes). the current study provides evidence for the presence of mdos in the highly infectious fish pathogen spironucleus vortens, an organism that produces h₂ and is shown here to have no detectable cytochromes. transmission electron microscopy (tem) reveals that s. vortens trophozoites contain el ...201323867147
microbiological and parasitological investigation among food handlers in hotels in the dead sea area, jordan.intestinal parasitic and bacterial infections constitute a major health issue in developing countries. the present study investigates and assesses infection rates among food handlers with intestinal parasites and microbial agents in luxurious hotels in the dead sea area of jordan.201423933293
[the case of henoch-schönlein purpura associated with blastocystis hominis].blastocystis hominis (b. hominis) is a parasite that often causes gastrointestinal symptoms in patients with immune deficiency and has a controversial pathogenicity in healthy people, although some symptoms are reported outside of the gastrointestinal system in healthy persons. henoch-schönlein purpura (hsp) vasculitis is an acute autoimmune disease characterised by iga storage of small vessels that is believed to include infectious factors in its aetiology. a 30-month follow-up with a boy diagn ...201323955912
[case of polyparasitism with long-term abdominal pain in a patient].it is known that infections caused by intestinal protozoa and helminths affect over 3.5 million people worldwide. in this case report, a patient with complaints of stomach ache for a long time who received thermal treatment is presented. during this thermal treatment, diarrhoea occurred and multiparasitism was diagnosed with two helminths; pseudoparasitism and multiprotozoa, simultaneously. stool samples were collected from the patient on three consecutive days and one day after the treatment. a ...201323955918
blastocystis: consensus of treatment and controversies.blastocystis is a highly controversial protozoan parasite. it has been variably regarded as a commensal and pathogen. scientists have for decades wondered whether it is truly an enteropathogen and if it is observed in symptomatic patients whether treatment is required because patient recovery and improvement has been noted even without any treatment. though associated with self-limiting infection, treatment is warranted in many patients due to persistence of symptoms. this particularly holds tru ...201323961439
hiv and intestinal parasite co-infections among a chinese population: an immunological profile.parasite infections often result in a switch of the human body's predominant immune reaction from t-helper 1 (th1)-type to th2-type. hence, parasite infections are widely expected to accelerate the progression of human immunodeficiency virus (hiv) infections to acquired immunodeficiency syndrome (aids). in the people's republic of china, both parasitic diseases and aids are epidemic in certain rural areas, and co-infections are relatively common. however, no population-based studies have yet inv ...201323971713
a schistosoma haematobium-specific real-time pcr for diagnosis of urogenital schistosomiasis in serum samples of international travelers and migrants.diagnosis of urogenital schistosomiasis by microscopy and serological tests may be elusive in travelers due to low egg load and the absence of seroconversion upon arrival. there is need for a more sensitive diagnostic test. therefore, we developed a real-time pcr targeting the schistosoma haematobium-specific dra1 sequence.201324009791
hypoalbuminemia as a predictor of diarrhea caused by blastocystis hominis.blastocystis hominis is an intestinal protozoan found worldwide, particularly in developing countries, that may cause gastrointestinal symptoms, including diarrhea. we conducted a hospital-based study to identify clinical factors predictive of diarrhea caused by b. hominis. we studied patients with positive stool samples for b. hominis by formalin ethyl acetate concentration technique at srinagarind hospital, khon kaen university, khon kaen, thailand between 2003 and 2010. patients were divided ...201324050068
intestinal parasite co-infection among pulmonary tuberculosis cases without human immunodeficiency virus infection in a rural county in china.epidemiologic studies of co-infection with tuberculosis (tb) and intestinal parasites in humans have not been extensively investigated in china. a cross-section study was conducted in a rural county of henan province, china. pulmonary tb (ptb) case-patients receiving treatment for infection with mycobacterium tuberculosis and healthy controls matched for geographic area, age, and sex were surveyed by using questionnaires. fecal and blood specimens were collected for detection of intestinal paras ...201424166044
detection of blastocystis hominis: a controversial human pathogen.blastocystis hominis has been reclassified as a protozoan parasite. its role as a human pathogen is somewhat controversial. there has been a dramatic increase in the frequency of b. hominis infection in association with diarrhea especially in immunocompromised hosts like aids patients, travelers, homosexuals, day care children, animal handlers especially zoo keepers, etc. recent reports suggest that b. hominis is an emerging pathogen; hence, we have undertaken this study to detect b. hominis fro ...201424169810
differences in prevalence of parasites in stool samples between three distinct ethnic pediatric populations in southern israel, 2007-2011.intestinal parasites cause significant morbidity worldwide, particularly in developing populations. at least three pediatric populations reside in southern israel: the bedouin population, the general jewish population and jewish children of ethiopian origin. our aim was to compare intestinal parasite prevalence between the three pediatric populations in southern israel. this is a retrospective, laboratory, population-based surveillance. most ova and parasite (o&p) tests in southern israel (hospi ...201424201297
nutritional status in parasitized and nonparasitized children from two districts of buenos aires, argentina.the program for the control of intestinal parasites and nutrition was designed to intervene in small communities to prevent and control the effects of parasitic infections on children's health.201324243498
fascioliasis and intestinal parasitoses affecting schoolchildren in atlixco, puebla state, mexico: epidemiology and treatment with nitazoxanide.the atlixco municipality, puebla state, at a mean altitude of 1840 m, was selected for a study of fasciola hepatica infection in schoolchildren in mexico. this area presents permanent water collections continuously receiving thaw water from popocatepetl volcano (5426 m altitude) through the community supply channels, conforming an epidemiological scenario similar to those known in hyperendemic areas of andean countries.201324278492
highly divergent mitochondrion-related organelles in anaerobic parasitic protozoa.the mitochondria have arisen as a consequence of endosymbiosis of an ancestral α-proteobacterium with a methane-producing archae. the main function of the canonical aerobic mitochondria include atp generation via oxidative phosphorylation, heme and phospholipid synthesis, calcium homeostasis, programmed cell death, and the formation of iron-sulfur clusters. under oxygen-restricted conditions, the mitochondrion has often undergone remarkable reductive alterations of its content and function, lead ...201424316280
parasite infection and tuberculosis disease among children: a case-control study.we conducted a case-control study to examine associations between parasite infection, including protozoa infection, and tuberculosis (tb) in children in lima, peru. we enrolled 189 matched-pairs. in multivariable conditional logistic regression analyses, blastocystis hominis infection (rate ratio = 0.30, 95% confidence interval = 0.14-0.64, p = 0.002) was strongly associated with a lower risk of tb. we observed a statistically significant inverse linear dose-response relationship between blastoc ...201424379242
[the prevalence of intestinal parasites in children with helicobacter pylori gastritis evaluated retrospectively].h. pylori infection is more frequent and is seen in younger ages in developing countries when compared to developed countries. etiopathogenetic factors include living in crowded families, low educational level of mother, low income and infected drinking water. intestinal parasites are more frequent in low socioeconomical populations. in this study, it was aimed to determine the prevalence of intestinal parasite in patients with h. pylori gastritis proven with endoscopic and histopathological stu ...201324412863
a cross-sectional study on intestinal parasitic infections in rural communities, northeast thailand.despite the existence of effective anthelmintics, parasitic infections remain a major public health problem in southeast asia, including thailand. in rural communities, continuing infection is often reinforced by dietary habits that have a strong cultural basis and by poor personal hygiene and sanitation. this study presents a survey of the prevalence of intestinal parasitic infections among the people in rural thailand. the community-based cross-sectional study was conducted in villages in khon ...201324516280
prevalence of intestinal protozoan infections among orang asli schoolchildren in pos senderut, pahang, malaysia.the current study determined the prevalence of intestinal protozoan infections among the orang asli schoolchildren in pos senderut, pahang, malaysia. the overall intestinal protozoan infection rate was 85% (261 out of 307). the highest prevalence rates were due to entamoeba coli (24.4%), giardia lamblia (21.8%), blastocystis hominis (21.2%) and entamoeba histolytica (15.0%). the prevalence of iodamoeba butschlii was only 2.9%. among the positive samples, mixed infection with b. hominis and e. hi ...201324640856
feconomics®; a new and more convenient method, the routine diagnosis of intestinal parasitic infections.direct wet mount examination and concentration are the most commonly used methods for detecting intestinal parasites from fecal samples. concentration methods are used when there are fewer protozoan cyst, coccidian oocyst, microsporidial spore, helminth egg, and larvae in the fecal samples. early detection of the causative intestinal parasites plays a significant role in implementing timely and correct treatment, which relieves the patients' symptoms and also prevents recurrences. formalin-ethyl ...201424781020
stress exacerbates infectivity and pathogenicity of blastocystis hominis: in vitro and in vivo evidences.stress alters the oxidant-antioxidant state and immune cell responses which disrupts its function to combat infection. blastocystis hominis, a common intestinal protozoan has been reported to be opportunistic in immunocompromised patients namely cancer. b. hominis infectivity in other altered immune system conditions especially stress is unknown. we aimed to demonstrate the stress effects towards the susceptibility and pathogenicity of b. hominis infection.201424788756
[relationship between morphology and pathogenicity of blastocystis hominis trophozoites].six hundred and eighty-six fresh fecal specimens were collected from outpatients (663 well-formed feces and 23 watery feces) during march 2011 to march 2012. all specimens were examined microscopically by direct smear and iodine stained method. b. hominis obtained from the human positive fecal specimens were cultured in les medium, and inoculated into the abdominal cavity of 10 female mice of 6-8-week old. the abdominal fluid was examined with same methods. 103 of 686 patients were positive (80 ...201324809197
[investigation on the infection of blastocystis hominis in populations in bama yao autonomous county of guangxi].497 fecal specimens were collected from 5 randomly selected villages of bama county in december 2011, and tested for blastocystis hominis infection using improved centrifugal sedimentation with hydrochloric acid-ether. data were analyzed by villages, gender, occupation, age groups and ethnic populations. the results showed that 215 people of 497 were positive, with a prevalence of 43.3% (215/497). pandang village had the highest infection rate of 55.7% (68/122), significantly higher than the oth ...201324812846
distribution of haematological indices among subjects with blastocystis hominis infection compared to controls.some studies suggest blastocystis hominis is a potentially pathogenic protozoa. blastocystis hominis contributed to anaemia in children aged 8-10 years old in one study.201424868297
intestinal parasitoses in a tertiary-care hospital located in a non-endemic setting during 2006-2010.the aim of this study was to assess the epidemiology of intestinal parasitoses during a 5-year period in patients attending a tertiary-care hospital in a non-endemic setting.201424886502
gastrointestinal pathogens detected by multiplex nucleic acid amplification testing in stools of pediatric patients and patients returning from the tropics.gastrointestinal infections are caused by a broad spectrum of pathogens. conventional diagnostic procedures are resource and time consuming due to single pathogen testing, often in different laboratories.201425015433
[twenty-five years of intestinal parasite prevalence in istanbul university, istanbul faculty of medicine: a retrospective study].the aim of our study is to determine the general intestinal parasite prevalence in istanbul university istanbul faculty of medicine hospital, which is located in european and asian geographical features of turkey.201425016115
motif types, motif locations and base composition patterns around the rna polyadenylation site in microorganisms, plants and animals.the polyadenylation of rna is critical for gene functioning, but the conserved sequence motifs (often called signal or signature motifs), motif locations and abundances, and base composition patterns around mrna polyadenylation [poly(a)] sites are still uncharacterized in most species. the evolutionary tendency for poly(a) site selection is still largely unknown.201425052519
prevalence of intestinal parasitic infections among communities living in different habitats and its comparison with one hundred and one studies conducted over the past 42 years (1970 to 2013) in malaysia.intestinal parasitic infections are among the most common diseases affecting mankind causing major public health problems to billions of people living in developing countries. the aim of this study is to determine the prevalence of intestinal parasites in various communities residing in different habitats in malaysia and compare the findings with 101 studies conducted over the past 42 years (1970-2013). a cross-sectional study design was conducted with the aid of a questionnaire to collect relev ...201425134888
blastocystis hominis infection in a post-cardiotomy patient on extracorporeal membrane oxygenation support: a case report and literature review.opportunistic pathogens can cause severe damage leading to irreversible complications in immune-compromised patients. here we describe a patient who sustained blastocystis hominis infection resulting in severe sepsis while on extracorporeal membrane oxygenation (ecmo) support, and the course of treatment taken to treat him.201425160800
[pcr-based genotype classification of blastocystis hominis isolates from college students of guangxi].fifty-three blastocystis hominis isolates were separated from the fecal specimens of carriers in college students from guangxi and cultivated in vitro, and the genetic dna was extracted. all the isolates were genotyped by pcr using seven pairs of known sequence-tagged site (sts) primers. the results showed there were five subtypes in the 53 isolates. subtype 3 was the most popular one (32.1%, 17/53), followed by subtype 7 (9.4%, 5/53). subtypes 1 (7.6%, 4/53), 4 (7.6%, 4/53), and 6 (1.9%, 1/53) ...201425223057
first genotyping of giardia duodenalis and prevalence of enteroparasites in children from tetouan (morocco).intestinal parasites are common in the moroccan population. enteroparasites in children from four schools in urban and rural areas of tetouan (morocco) were studied to treat these children and to design prevention and control programs. a total of 673 children were examined. the prevalence of parasitized children was 51%. the average number of enteroparasites was half in urban areas than in rural areas. multiple parasitism appeared in 30% of the samples presenting two, three, or four parasites. t ...201425259605
prevalence and risk factors related to intestinal parasites among children in department of rio san juan, nicaragua.the present study was carried out to assess the prevalence of intestinal parasite infections among children in department of rio san juan (nicaragua), to explore the extent of polyparasitism, and to identify the risk factors that might favour transmission of these parasites.201425344696
the intestinal protozoa: emerging impact on global health and development.to highlight new findings on the relevance of gastrointestinal protozoan infections to global public health in low-income and middle-income countries and suggest new large-scale interventions.201525394233
[blastocystis hominis: an unwanted guest?]. 201425417343
health status of immigrant children and environmental survey of child daycare centers in samut sakhon province, thailand.samut sakhon is a thai province popular among immigrants attracted to work in factories and the thai food industry, especially people from myanmar. poor personal-hygiene behaviors, crowded accommodation and limited sanitation, result in health problems among immigrant workers. various infectious diseases among this group are seen and managed by samut sakhon general hospital. the impact of intestinal parasitic infections on public health is well known; they can spread from infected immigrant area ...201625502792
[blastocystis hominis- parasites or commensals? ].blastocystis hominis (b. hominis) is a cosmopolitan pro- tozoa which parasitizes the human large intestine. this parasite had been considered to be commensal of the large intestine for a long time, because even an intense invasion may be asymptomatic. however, this species is now being regarded as a parasitic organism. in this paper the latest data concerning the epidemiology, diagnostics and treatment of b. hominis invasion have been cited and discussed.201425518089
diagnostic algorithm for the diagnosis of pediatric parasitic gastroenteritis.current practices for ordering stool studies in patients with abdominal and gastrointestinal symptoms are not standardized. we hypothesized that an algorithm involving first-line use of a cryptosporidium/giardia combination antigen test and stricter use of ova and parasite (o&p) examinations would be clinically and cost effective.201625545819
parasitic infection in a young man presenting with non-specific abdominal pain.a 27-year-old man presented with a two-week history of central colicky abdominal pain associated with loose stools. further history revealed that he had been exposed to contaminated waters. stool investigation by direct wet stool smears revealed the presence of entamoeba histolytica and blastocystis hominis cysts. a diagnosis of amoebiasis secondary to e. histolytica and concurrent b. hominis infestation was made. we would like to emphasise the importance of clinical history including recent tra ...201025606208
present status of protozoan pathogens causing water-borne disease in northern part of el-minia governorate, egypt.little is known about the role of different water supplies in the diversity and public health significance of pathogenic protozoan parasites. most of these organisms have been ubiquitous in waters worldwide. the numbers of waterborne infections indicate a significant risk for their transmission even by drinking water. hence, a total of 336 water samples were collected during 2009-2013 from different water sources from different areas of northern part of el-minia govemnorate, egypt and were inves ...201425643498
the prevalence of intestinal parasites in hemodialysis patients in bushehr, iran.hemodialysis patients, due to a dysfunction of the immune response, are prone to a variety of opportunistic infections. studies of intestinal parasitic infections in these patients are limited. therefore, the present study was performed to determine the prevalence of these infections in patients on hemodialysis in bushehr. in this cross-sectional study, fecal samples have been collected from all hemodialysis patients who were continuously referred from september 2011 to september 2012 to the dia ...201525643728
seropositivity for ascariosis and toxocariosis and cytokine expression among the indigenous people in the venezuelan delta region.the present study aimed at measuring seropositivities for infection by ascaris suum and toxocara canis using the excretory/secretory (e/s) antigens from ascaris suum (aes) and toxocara canis (tes) within an indigenous population. in addition, quantification of cytokine expressions in peripheral blood cells was determined. a total of 50 warao indigenous were included; of which 43 were adults and seven children. in adults, 44.1% were seropositive for both parasites; whereas children had only serop ...201525651326
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