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[heterophyiasis and diarrhea after travel: a case report of a child returning from a trip to egypt].the most frequently reported parasite-related diarrheal diseases in tropical travellers are amibiaisis, giardiasis, and certain types of nematoodiasis. intestinal distomiasis is uncommon because the parasite is strictly limited to certain areas of the world. however observation is possible as is demonstrated by this case report involving a 3-year-old child who presented diarrhea two weeks after returning from a six-week stay egypt. heterophyes heterophyes eggs were identified. this small fluke h ...19958559020
[prevalence of intestinal parasites among japanese residents in developing countries].we examined fecal specimens of japanese residents in developing countries in order to know the prevalence of intestinal parasites in the group. one fecal specimen was collected from each 981 (in 1995) and 1275 (in 1996) japanese living in asia, the middle east, europe, africa and latin america. the specimens were fixed with 10% formalin in each area, and were examined in japan by concentration method (formalin-ether sedimentation) to find protozoan cysts or helminth eggs. the infection rate of i ...19989916414
[on 2 cases of cerebral distomiasis caused by heterophyes heterophyes]. 196013694781
[parasitic epilepsy of unusual origin: distomiasis (due to heterophyes heterophyes)]. 195913811314
heterophyes heterophyes from dogs in greece. 196414244817
bephenium hydroxynaphthoate against heterophyes heterophyes infections. 196114477927
[role of gastropods in epidemiology of human parasitic diseases].pulmonate and prosobranch snails, being necessary hosts for parthenogenetic generations of digenetic trematodes, participate in transmission of all trematodoses important from medical point of view. role of particular gastropods in epidemiology of these diseases is discussed in details. invasion of land snails and slugs is mainly passive by eggs containing developed miracidia, while enter of these larvae into snails inhabiting fresh-water environments is usually active. generations in the snail ...200116888946
comparison of three immunodiagnostic tests for experimental heterophyes heterophyes infection in dogs.the aim of this study was to compare the performance of three in-house diagnostic tests, i.e. counter current immunoelectrophoresis (ccie), intradermal (id) and indirect fluorescent immunoassay (ifi), for the diagnosis of heterophyes infection. one hundred and twenty puppies were randomly divided into eight groups (n=15/group). heterophyes heterophyes infections were established in these puppies by administering a dose of 50 h. heterophyes encysted metacercariae/puppy by gavage. forty puppies of ...200818079065
mirazid (commiphora molmol) in treatment of human heterophyiasis.a total of 3278 patients attended mansoura university hospitals' clinics with gastro-intestinal troubles suggesting parasitosis were examined by direct smear and by kato-katz methods for parasites especially heterophyes heterophyes. fifty clinically and parasitologically proved pure heterophyiasis patients were given mirazid as two capsules for 9 successive days on an empty stomach an hour before breakfast. all the cases were subjected to history taking and clinical examination before treatment ...200717985576
the reflection of control programs of parasitic diseases upon gastrointestinal helminthiasis in dakahlia governorate, egypt.the study area included mansoura city as an urban area and gogar village as a rural area. one thousand individuals were randomly selected from each area. different methods of stool examination, perianal swab and urine examination of all participants revealed that the incidence in mansoura city was in a descending order heterophyes heterophyes 6.4%; enterobius vermicularis 3.9%; hymenienolepis nana 2.2%; schistosoma mansoni 0.5%; trichostrongylus colubriftormis; strongyloides stercoralis and fasc ...200616927862
a further trial of 'yomesan' in heterophyes heterophyes infection. 196414225339
studies on intestinal trematodes in korea xi. two cases of human infection by heterophyes heterophyes nocens.two human cases of heterophyes heterophyes nocens infection were proved by identifying adult worms after treatment with bithionol or praziquantel in 1983 in korea. they are 37 (case 1) and 24-year old (case 2) males whose residence or native village is a southern coastal area in kohung-gun, chollanam-do. the case 1 had the gastrointestinal symptoms such as epigastric pain and indigestion, and the case 2 heart problems such as arrhythmia and ventricular premature beat in ekg and digestive symptom ...198412891029
comparative morphology of eggs of heterophyids and clonorchis sinensis causing human infections in korea.in order to provide some clues for differential diagnosis of trematode infections in fecal examination, the comparative morphology of eggs of 5 kinds of heterophyid flukes (metagonimus yokogawai, heterophyes heterophyes nocens, heterophyopsis continua, stellantchasmus falcatus and pygidiopsis summa) and clonorchis sinensis was studied. the eggs were obtained from distal portion of uteri of worms which were recovered from men after treatment. the characteristic shape and apperance of each kind of ...198412891010
heterophyid trematodes (heterophyopsis continua, pygidiopsis summa and heterophyes heterophyes nocens) from domestic cats in korea.during 8 april 1983 to 9 april 1985, a total of 181 domestic cats (felis catus domestica linnaeus) of unknown localities in korea were purchased at seoul chung-ang market, and the internal organs were dissected for helminth infections. in the results, three kinds of trematodes of family heterophyidae (ohdner, 1914) were obtained from small intesine of domestic cats and identified as follows: five adult worms of heterophyopsis continua (onji et nishio, 1916) from three hosts, two hundreds and twe ...198512888661
human infections by heterophyes heterophyes and h. dispar imported from saudi arabia.two human cases of heterophyes heterophyes and h. dispar infections were proven by the recovery of their adult worms. the cases were 38-year and 40-year old korean workers who had been in saudi arabia for 4-6 years and returned home in 1983 or 1984 with gastrointestinal troubles. in saudi arabia they had eaten raw brackish water fishes such as the mullet. after the treatment with 10 mg/kg praziquantel and purgation with magnesium salt, a total of 19 specimens of h.heterophyes and 140 of h. dispa ...198612886112
studies on trematodes of the family heterophyidae (odhner, 1914) in iran: 1. preliminary epidemiological surveys in man and carnivores in khuzestan.trematodes of the family heterophyidae in man and carnivores were studied in khuzestan, south-west iran. eight hundred and eleven stool samples from a population of 3400 in 13 villages in a swampy area located in central khuzestan were examined by the formalin-ether concentration technique. the following helminths were found: ascaris lumbricoides 7%, trichostrongylus spp. 53%, hookworms 4+, trichuris trichiura 5%, hymenolepis nana 12% and heterophyid spp. 8%. post-mortem examination of carnivore ...19817310107
the profile of the trematodicidal compound praziquantel.from the start onwards of testing praziquantel (2 - cyclohexyl - carbonyl - 1,2,3,6,7,11 b - hexahydro - 4h - pyrazino[2,1-a]isoquinolin-4-one, embay 8440, biltricide) proved to be very promising. by testing numerous trematode species in different host animals, high efficacy was established. there were no limitations due to the geographical origin of all those parasite species. pharmacokinetic studies in animals and man showed similarly favourable results. the compound passes the blood-liquor ba ...19846391500
treatment of heterophyes heterophyes infections by radeverm. 19715159154
investigations on the prevalence of heterophyes species in twelve populations of the first intermediate host in egypt and sudan.twelve populations of the mud snail pirenella conica from the densely populated nile delta, saline inland waters, and the scarcely populated coast of the red sea were investigated for the prevalence of heterophyes heterophyes, h. aequalis, and h. dispar. heterophyes heterophyes was most prevalent in the nile delta, which seems to be the centre of human heterophyiasis throughout the distributional range of that species. transmission takes place near human settlements, where the definitive hosts a ...19854087327
transmission experiments on the host specificity of heterophyes species in 16 potential definitive hosts.sixteen different species of piscivorous mammals and birds were tried as experimental definitive hosts for heterophyes heterophyes, h. aequalis and h. dispar. the hosts were classified in four categories, by fluke longevity, recovery and size, and the number of uterine eggs (embryonated/unembryonated): (1) canidae and the cat were highly susceptible hosts for all three species of heterophyes; (2) several mammals and herons showed a reduced susceptibility to infection (h. aequalis, 6 species; h. ...19854024708
effects of praziquantel on human intestinal flukes (fasciolopsis buski and heterophyes heterophyes).human intestinal flukes (fasciolopsis buski and heterophyes heterophyes) were treated with praziquantel in vivo or in vitro and then studied by transmission (tem) and scanning (sem) electron microscopy. f. buski worms recovered from patients, which had been cured by oral treatment of 1 x 15, 1 x 25 or 1 x 40 mg praziquantel/kg body weight, showed typical contraction and alterations together with vacuolization and bleb formation of their tegument. h. heterophyes worms recovered from an experiment ...19863799097
intestinal fluke infection as a result of eating sushi.severe diarrhea in a female outpatient was caused by an intestinal fluke, identified as heterophyes heterophyes, a natural parasite of humans and domesticated and wild fish-eating mammals. this parasite is endemic in the orient and the middle east. a detailed case history revealed that the woman had never traveled outside the continental united states but became infected while eating raw fresh-water fish (sushi) that had been served at a local japanese restaurant. the restaurant specialized in s ...19863776925
experiments on habitat selection of heterophyes species in different definitive hosts.heterophyes heterophyes, h. aequalis and h. dispar showed distinct zonation in the small intestine of different definitive hosts. the flukes were found in their appropriate zone within four to six hours after infection. it appeared that their position shifted posteriorly during their life and that the shift proceeded more rapidly in unsuitable hosts. histological sections revealed that the flukes are not deeply embedded in the host's mucosa.19873571918
heterophyes species in greece: record of h. heterophyes, h. aequalis and h. dispar from the first intermediate host, pirenella conica.heterophyes heterophyes is reported for the first time from the snail host pirenella conica in greece. h. aequalis and h. dispar are reported for the first time from greece and from europe. the results presented, together with the available data on necropsies of dogs and cats, human infections and the biotope preference of the snail, suggest that greece is an important focus of infection in europe.19873571917
effect of praziquantel on heterophyes heterophyes. 19883418149
the effect of praziquantel on heterophyes heterophyes, hymenolepis nana and fasciola sp. infections. 19883373052
a preliminary study of liver functions in heterophiasis.the values of serum aspartate transaminase sgot and serum alanine transaminase sgpt were observed to elevate in pigeons experimentally infected with heterophyes heterophyes. histopathologically the liver showed congestion, fatty infiltration and periportal round cell infiltration. kupffer cells showed proliferation.19902332667
cell-mediated immune response in experimental infection with h. heterophyes.experimental infection of puppies with heterophyes heterophyes was associated with marked cell-mediated immune response that manifested itself by increase of t-cell count and leucocyte migration. the degree of cell-mediated immune response was inversely proportional to the intensity of infection. the significance of the results was discussed.19902332652
[a numerical taxonomic study on heterophyid trematodes].a numerical taxonomy was studied on a group of heterophyid trematodes and analysis was made on the following species: metagonimus yokogawai (3 otu, operational taxonomic unit), metagonimus miyata type (3 otu), metagonimus takahashii (2 otu), heterophyes dispar (2 otu), heterophyes heterophyes (1 otu), heterophyes nocens (2 otu), heterophyopsis continua (1 otu), pygidiopsis summa (3 otu), stellantchasmus falcatus (2 otu) and stictodora lari (2 otu). twenty-six morphological characters were measur ...19911911627
snail-borne parasitic zoonoses in korea.a total of 22 snail-borne parasites causing various parasitic zoonoses in korea are listed and reviewed. all of these parasites are indigenous except heterophyes heterophyes, h. dispar and angiostrongylus cantonensis detected in patients who traveled outside of korea.19911822934
[a parasitologic survey conducted in touraine (france) in a group of south east asia refugees (author's transl)].forty refugees (23 from 5 lao families and 17 from 3 cambodian families) previously and routinely treated against intestinal parasites, underwent stools and serum controls: 77 p. 100 had still intestinal parasites but 61 p. 100 had a normal blood cells count without hypereosinophilia. the parasites so detected were: clonorchis sinensis, heterophyes heterophyes, trichuris trichiura, necator americanus, strongyloides stercoralis, giardia intestinals and entamoeba coli.1979530050
microsporidian infection in the cyst wall of trematode metacercariae encysted in fish.microsporidian infection is reported in liza ramada (risso), mugilidae, from bardawil lagoon, mediterranean coast of sinai, in the fibroblasts of the metacercarial capsule of heterophyes heterophyes (siebold). infection of the metacercarial cyst resulted in an hypertrophy of the cyst wall and degeneration and eventual death of the encapsulated metacercaria.197898090
host-dependent variations in the seasonal prevalence and intensity of heterophyid encysted metacercariae (digenea: heterophyidea) in brackish water fish in egypt.the prevalence of heterophyid (digenea: heterophyidae) encysted metacercariae (emc) in its second intermediate host, the fish mugil spp. and tilapia spp. was studied in a subtropical permanent lake in northeastern egypt. seasonal changes in the occurrence of the emc in different fish hosts were monitored in a longitudinal field survey lasting 12 months from june 2006 to may 2007. this study tested two hypotheses; (i) prevalence and intensity of heterophyid emc fluctuate seasonally throughout the ...200818339484
host-induced phenotypic differences in egyptian heterophyes heterophyes (digenea: heterophyidae).a comparative morphometric study identified host-related variations in heterophyes heterophyes. in one study, variations in adult h. heterophyes obtained from different definitive hosts were examined. significant differences were in size and dimensions of body organs of adults collected from dogs, cats and albino-rats experimentally infected with encysted metacercariae (emc) from mullet (mugil cephalus). hypotheses on the sources of host-dependent variations were interpreted in terms of adaptati ...200718383783
natural infection of fresh and brackish water fish with heterophyid encysted metacercariae in dakahlia governorate, egypt.the encysted metacercariae (emc) of heterophyids in the fish species; mugil caphalus, m. capito, m. auratus, oreochromis n. niloticus (=tilapia nilotica), and tilapia zillii trapped brackish and fresh water fishes were isolated by the artificial digestion method and identified. the emc by morphometric analysis proved to be seven phenotypical distinct types. cross-matched seven groups of clean laboratory bred puppies each was experimentally infected with a distinct emc type. the recovered adult f ...200718383799
preliminary observations on infection of brackish and fresh water fish by heterophyid encysted metacercariae in egypt.the infection status with heterophyids in the second intermediate host fish obtained from brackish and fresh water resources in dakahlia governorate, northern egypt was investigated. encysted metacercariae (emc) in the fish species mugil cephalus, mugil capito, mugil auratus, tilapia nilotica, and tilapia zilli from brackish water and t. nilotica and t. zilli from fresh water were isolated by artificial digestion method and identified by microscopic examination. morphometric analysis of emc isol ...200818537032
the parasite fauna of stray domestic cats (felis catus) in dubai, united arab emirates.two hundred forty feral domestic cats trapped between 2004 and 2008 in the city centre and the suburb districts of dubai, as well as in desert biotopes, were subjected to a complete parasitological dissection. the established parasite fauna consisted of cystoisospora felis (12.9%), cystoisospora rivolta (9.2%), toxoplasma/hammondia (0.8%), heterophyes heterophyes (2.5%), heterophyopsis continua (0.4%), joyeuxiella spp. (65.8%), diplopylidium noelleri (37.1%), hydatigera taeniaeformis (16.7%), ta ...200919238440
external and intestinal parasites of pet dogs with reference to zoonotic toxocariasis.examination of 3000 pet dogs over two years at the veterinary teaching hospital, faculty of veterinary medicine revealed external and internal parasites. the external parasites were rhipicephalus sanguineus, ctenocephalus felis, sarcoptes canis, and sarcoptes scabiei. the internal parasites were echinococcus granulosus, dipylidium caninum, rare heterophyes heterophyes, and toxocara canis. toxocara eggs were detected in 9.83%. the results were discussed with reference to zoonotic toxocariasis.200919530631
a survey study on gastrointestinal parasites of stray cats in northern region of nile delta, egypt.a survey study on gastrointestinal parasites in 113 faecal samples from stray cats collected randomly from kafrelsheikh province, northern region of nile delta of egypt; was conducted in the period between january and may 2010. the overall prevalence was 91%. the results of this study reported seven helminth species: toxocara cati (9%), ancylostoma tubaeforme (4%), toxascaris leonina (5%), dipylidium caninum (5%), capillaria spp. (3%), taenia taeniformis (22%) and heterophyes heterophyes (3%), f ...201121760884
encysted metacercariae of family heterophyidae in infected fish in dakahlia governorate, an endemic focus in egypt.the study re-evaluated the status of encysted metacercariae (emc) of family heterophyidae in fresh and brackish water fish in an endemic focus in egypt, as well as to study their morphological pattern. seasonal variation of emc was matched with their prevalence and intensity in infected fish. the study covered a period of one year from first of april 2011 to end of march 2012. the total percent of infection in the examined fish was 71.9% and 42.6% for brackish and fresh water respectively. the h ...201425643497
studies on some fish parasites of public health importance in the southern area of saudi arabia.the present study was the first attempt to survey the diversity of fish zoonotic parasites in the southern region of saudi arabia, particularly the najran area, from october 2012 to october 2013. approximately 163 fish representing seven species (two of freshwater fish and five of marine fish) were examined for fish-borne trematode metacercariae using the compression technique, and for zoonotic nematode larvae. adult flukes were obtained from cats experimentally infected with the metacercariae o ...201725517520
prevalence of heterophyiosis in tilapia fish and humans in northern egypt.a total of 100 tilapia fish samples were collected from brackish water (n = 50) and fresh water (n = 50) resources, northern egypt, and examined for heterophyid encysted metacercariae (emc) during the period from august 2007 to july 2008. the overall prevalence of infection was 32%; 22% for brackish water fish and 42% for fresh water fish. significant differences in parasite occurrence among body regions were found, with muscles of the tail and caudal third being highly affected (93.4%) followed ...201020644958
helminth parasites of fish and shellfish from the santa gilla lagoon in southern sardinia, italy.an extensive survey of helminth parasites in fish and shellfish species from santa gilla, a brackish water lagoon in southern sardinia (western mediterranean), resulted in the identification of 69 helminth parasite taxa and/or species from 13 fish species (n= 515) and seven bivalve species (n= 2322) examined between september 2001 and july 2011. the list summarizes information on the helminth parasites harboured by fish and molluscs contained in the available literature. digenea species (37), bo ...201423790066
potential zoonotic trematodes recovered in stray cats from kuwait municipality, kuwait.stray cats are a common feature roaming the streets and alleys of kuwait; they could be a source of parasites, including trematodes, that affect humans. a survey was conducted to identify feline trematodes and throw the light on their public health significance in kuwait. out of 240 stray cats trapped from different localities of kuwait from june 2011 to may 2012, 59 (24.6%) were found to be infected with 14 species of trematodes. the most common were trematodes of the genus heterophyes, particu ...201526174821
intestinal parasites of the red fox (vulpes vulpes) in slovenia.in the present study, 428 foxes were collected and examined for intestinal helminths using the washing-out method. parasites were found in 93.2% of the examined animals. the most frequently identified nematodes were uncinaria stenocephala (58.9%), toxocara canis (38.3%) and molineus patens (30.6%). other nematodes found were pterygodermatites affinis (4.2%), capillaria sp. (2.8%), crenosoma vulpis (2.8%), toxascaris leonina (2.5%), trichuris vulpis (0.7%) and physaloptera sp. (0.2%). mesocestoid ...201323974942
epidemiological investigation of parasitic infection of schoolchildren from six elementary schools in sakon nakhon province, thailand.we conducted an epidemiological study of intestinal parasitic infection in 572 schoolchildren aged 4 to 12 years old from six elementary schools in sakon nakhon province, thailand from june 2013 to august 2014. we collected fecal, blood, and urine samples to investigate parasitic infection and conducted a questionnaire survey. soil samples were examined for egg contamination. fecal examination, using the formalin-ether sedimentation method, revealed that 39% of schoolchildren were infected with ...201728289269
epidemiological and molecular data on heterophyid trematode metacercariae found in the muscle of grey mullets (osteichthyes: mugilidae) from sardinia (western mediterranean sea).this study is a contribution to the molecular taxonomy and epidemiology of heterophyid (trematoda: heterophyidae) metacercariae found in the muscle of mugilidae (osteichthyes) from sardinia (western mediterranean sea). sixty specimens of mugilids (13 chelon labrosus, 18 liza aurata, 6 liza ramada, 8 liza saliens, 15 mugil cephalus) were examined and 17,899 metacercariae isolated in 95 % of the hosts. four types of metacercariae were identified: heterophyes sp. (nā€‰=ā€‰14,113), heterophyes sp. -smal ...201627154766
insights into regulatory molecules of intestinal epithelial cell turnover during experimental infection by heterophyes heterophyes.heterophyiasis is an intestinal disease that remains endemic in many parts of the world, particularly the nile delta of egypt and southeast asia, yet the populations at risk of infection expand throughout the world. the main histopathological feature of infection is villous atrophy, but the underlying factors are not well understood. apoptosis of the villous epithelial cells was previously reported to be enhanced during intestinal parasitic infections; however, the role of heterophyes heterophye ...201424852217
a simple technique for staining of platyhelminths with the lactophnol cotton blue stain.this paper describes a simple technique for staining of flatworms using lactophenol cotton blue (lpcb). the staining was tested on 2 trematode species: heterophyes heterophyes and mesostephanus appendiculatus, and one cestode: diplopylidium acanthotetra, which were collected from the intestine of stray cats in kuwait. the specimens were mounted in a small amount of the lpcb stain on a clean slide for 2-3 minutes before covering with a cover slip. the technique rapidly and clearly differentiated ...201324260820
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