Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| parasite influences on host life history: echinostoma revolutum parasitism of lymnaea elodes snails. | using field surveys and experimental infections, we investigated the influence of a trematode parasite on life history traits of adult lymnaea elodes snails. we found that parasitism significantly affected the growth, fecundity, and survival of host snails. within five of the six natural l. elodes populations we sampled, shell length of echinostome-infected hosts was significantly greater than for uninfected conspecifics. furthermore, we show that gigantism occurs among experimentally infected s ... | 1998 | 28308452 |
| occurrence and hat-rapd analysis of gastrointestinal helminths in domestic chickens (gallus gallus domesticus) in phayao province, northern thailand. | the present study determined the prevalence and distribution of gastrointestinal helminths in domestic chickens (gallus gallus domesticus) between november 2012 and august 2013. one hundred and twenty domestic chickens were purchased from villages in four districts of phayao province; mae chai, dok khamtai, chun and chiang kham. morphological differences were used to identify the helminth species, and hat-rapd technique was used to differentiate among closely related species. the results reveale ... | 2017 | 28053568 |
| host food resource supplementation increases echinostome infection in larval anurans. | host-parasite interactions are often influenced by environmental factors through multiple mechanisms. for example, changes in host food resources may affect multiple host traits (e.g., body size, behavior, immunocompetence), which may increase or decrease infection levels and the impact of parasites on host fitness. we often lack an understanding of which traits are most important for parasite transmission and fitness effects, posing challenges to predicting consequences of changing environmenta ... | 2016 | 27581843 |
| invasion of flukes of the echinostomatidae family in racing pigeon ( columba livia var. domestica) lofts. | over 4 years, only two known cases of fluke invasions were diagnosed in racing pigeons ( columba livia ) originating from different regions of poland. in both cases, the invasion was characterized by a very high mortality (approximately 70%), and the source of the infestation was snails of the lymnaeidae family eaten by pigeons. fluke invasions in pigeons are extremely rare and to date have not been described in poland. therefore, the occurrence of the symptoms of hemorrhagic diarrhea and sudden ... | 2016 | 27309299 |
| prevalence of gastrointestinal helminths in banaraja fowls reared in semi-intensive system of management in mayurbhanj district of odisha. | studies on the prevalence of gastrointestinal helminths infection in banaraja fowls of three blocks (chandua, shamakhunta and bangriposi) of mayurbhanj district in odisha with respect to semi-intensive system of rearing. | 2015 | 27065637 |
| larval trematode infections in lymnaea glabra populations living in the brenne regional natural park, central france. | lymnaea glabra is known to be a natural intermediate host of two flukes, calicophoron daubneyi and fasciola hepatica, in central france. but it can also sustain larval development of other digeneans. adult snails were thus collected from 206 habitats in 2014 and 2015 to identify parasite species and determine the prevalence of each digenean infection in relation to the five types of snail habitats. seven digenean species were noted in 321 infected snails (out of 17,647 l. glabra). snails with f. ... | 2015 | 26692260 |
| mitochondrial dna sequences of 37 collar-spined echinostomes (digenea: echinostomatidae) in thailand and lao pdr reveals presence of two species: echinostoma revolutum and e. miyagawai. | the "37 collar-spined" or "revolutum" group of echinostomes is recognized as a species complex. the identification of members of this complex by morphological taxonomic characters is difficult and confusing, and hence, molecular analyses are a useful alternative method for molecular systematic studies. the current study examined the genetic diversity of those 37 collar-spined echinostomes which are recognized morphologically as echinostoma revolutum in thailand and lao pdr using the cytochrome c ... | 2015 | 26205690 |
| larval trematode infections in galba truncatula (gastropoda, lymnaeidae) from the brenne regional natural park, central france. | adult galba truncatula ( ≥ 4 mm in shell height) were collected from 135 habitats for 3 years (2012-2014) to identify parasite species via the study of cercariae, and to determine the prevalence of each digenean infection in relation to the type of snail habitat (six types). a total of 323 infected snails and ten digenean species were noted in the bodies of 11,025 g. truncatula after their dissection. snails with calicophoron daubneyi and/or fasciola hepatica were found in 20.7% and 12.5% of the ... | 2016 | 25804319 |
| mediterranean essential oils as effective weapons against the west nile vector culex pipiens and the echinostoma intermediate host physella acuta: what happens around? an acute toxicity survey on non-target mayflies. | mosquitoes (diptera: culicidae) represent a threat for millions of people worldwide, since they act as vectors for important pathogens, including malaria, yellow fever, dengue and west nile. second to malaria as the world's most widespread parasitic disease, infection by trematodes is a devastating public health problem. in this study, we proposed two essential oils from plants cultivated in mediterranean regions as effective chemicals against mosquitoes and freshwater snails vectors of echinost ... | 2015 | 25563605 |
| a re-assessment of species diversity within the 'revolutum' group of echinostoma rudolphi, 1809 (digenea: echinostomatidae) in europe. | species of echinostoma rudolphi, 1809 (digenea: echinostomatidae) belonging to the 'revolutum' species complex were re-examined based on material gathered in an extensive sampling programme in eight countries in europe. the morphology of the life-cycle stages was studied in naturally and experimentally infected snail and bird hosts. a review, with an updated synonymy, is presented for six european species, including one new to science, i.e. echinostoma revolutum (frölich, 1802) (sensu stricto) ( ... | 2015 | 25557744 |
| genetic characterization and phylogenetic analysis of echinostomes. | we conducted this study to identify species and determine the phylogenetic relationships using ribosomal dna (rdna) sequences [partial sequences of 28s rdna and second internal transcribed spacer (it52)] of echinostomes collected from free-grazing ducks in phitsanulok province, thailand. four adult echinostomes were morphologically identified as echinostoma revolutum, 4 as hypoderaeulm conoideurn and 2 unidentified. sequences of other species/isolates of echinostomes retrieved from the genbank d ... | 2014 | 25417500 |
| helminth parasites of the european starling (sturnus vulgaris) (aves, sturnidae), an invasive bird in argentina. | the aim of this work is to contribute to the knowledge of gastrointestinal parasites of the european starling sturnus vulgaris, an invasive bird from argentina. seventy-six birds were collected during the spring of 2007 and were examined for helminths. six parasite species were found: one trematoda of the echinostoma revolutum "group," four nematodes (synhimantus nasuta, microtetrameres sp., pterothominx exilis, and ornithocapillaria ovopunctata), and one acanthocephalan (plagiorhynchus cylindra ... | 2014 | 24804922 |
| zoonotic echinostome infections in free-grazing ducks in thailand. | free-grazing ducks play a major role in the rural economy of eastern asia in the form of egg and meat production. in thailand, the geographical location, tropical climate conditions and wetland areas of the country are suitable for their husbandry. these environmental factors also favor growth, multiplication, development, survival, and spread of duck parasites. in this study, a total of 90 free-grazing ducks from northern, central, and northeastern regions of thailand were examined for intestin ... | 2013 | 24516271 |
| echinostoma revolutum: freshwater snails as the second intermediate hosts in chiang mai, thailand. | the occurrence of 37-collar spined echinostome metacercariae in freshwater snails was investigated in 6 districts of chiang mai province, thailand, from october 2011 to april 2012. a total of 2,914 snails that belong to 12 species were examined, and 7 snail species (clea helena, eyriesia eyriesi, bithynia funiculata, bithynia siamensis siamensis, filopaludina doliaris, filopaludina sumatrensis polygramma, and filopaludina martensi martensi) were found infected with echinostome metacercariae. the ... | 2013 | 23710085 |
| trematodes recovered in the small intestine of stray cats in the republic of korea. | in 2005, we reported the infection status of 438 stray cats with various species of intestinal helminths, including nematodes (4 species), trematodes (23 species), and cestodes (5 species) in the republic of korea. however, morphologic details of each helminth species have not been provided. in the present study, we intended to describe morphologic details of 13 trematode species which were either new fauna of cats (10 species) or new fauna of not only cats but also all animal hosts (3 species). ... | 2013 | 23467726 |
| echinostome flukes receovered from humans in khammouane province, lao pdr. | echinostome eggs were detected in 22 (1.1%) of 2,074 people residing in riparian villages along the mekong river in khammouane province, lao pdr. in order to recover the adult flukes, 9 persons were treated with praziquantel and purged with magnesium salts. a total of 55 echinostome specimens (4 species) were recovered from the 9 persons. echinostoma revolutum (8 specimens) was recovered from 3 persons, artyfechinostomum malayanum (8 specimens) was from 2 persons, echinochasmus japonicus (33 spe ... | 2012 | 22949759 |
| the neuromuscular system in continuously swimming cercariae from belarus. ii echinostomata, gymnocephala and amphistomata. | the neuromuscular system in cercariae of moliniella anceps, echinostoma revolutum, cathaemasia hians, psilochasmus oxyurus, sphaeridiotrema globulus, paramphistomum cervi and diplodiscus subclavatus was studied with immunocytochemical methods and confocal scanning laser microscopy. the patterns of f-actin in the musculature, 5-ht immunoreactive (ir), fmrfamide-ir neuronal elements and α-tubulin-ir sensory receptors were investigated. the general patterns of musculature, 5-ht- and fmrfamide-ir ne ... | 2012 | 22941527 |
| digenean communities in the tufted duck [aythya fuligula (l., 1758)] and greater scaup [a. marila (l., 1761)] wintering in the north-west of poland. | a total of 124 specimens of the tufted duck, aythya fuligula, and 63 greater scaup, a. marila, were examined for digenean parasites. both duck species, which overwinter in a coastal lake connected with the southern baltic (north-west poland) were found to support amblosoma exile, cyathocotyle prussica, paracoenogonimus ovatus, australapatemon minor, cotylurus cornutus, echinoparyphium recurvatum, echinostoma revolutum and notocotylus attenuatus. in addition, the tufted duck hosted hypoderaeum co ... | 2013 | 22677200 |
| echinostoma revolutum: metacercariae in filopaludina snails from nam dinh province, vietnam, and adults from experimental hamsters. | we detected metacercariae of echinostoma revolutum in filopaludina sp. snails purchased from a local market in nam dinh province for the first time in vietnam. adult flukes were harvested from experimentally infected hamsters at days 14 and 17 post-infection. the metacercariae were round, 170-190 µm (n = 15) in diameter, with a cyst wall thickness of about 12 µm. a total of 37 collar spines were arranged around the head collar, and large excretory granules were seen in 2 canals of the excretory ... | 2011 | 22355218 |
| spatial and temporal genetic variation of echinostoma revolutum (trematoda: echinostomatidae) from thailand and the lao pdr. | a total of 314 individual echinostoma revolutum were collected at different locations and times from domestic ducks from khon kaen province, thailand and vientiane province, the lao people's democratic republic (pdr). genetic variation of these parasites was analyzed using multilocus enzyme electrophoresis at three polymorphic loci namely, glucose-6-phosphate dehydrogenase (g6pd), malic enzyme (me) and peptidase valine-leucine (pepa). high levels of genetic variability were found within and betw ... | 2011 | 21414285 |
| allozyme analysis of the temporal populations of echinostoma revolutum collected from domestic ducks in khon kaen province, thailand. | four temporal populations of echinostoma revolutum (er1, er2, er3, er4) were collected from domestic ducks in khon kaen province, thailand during february-october 2008. the er1, er2, er3 and er4 were collected in february, april, june and october, respectively. the 12 enzymes encoding 15 loci were examined. two loci were found in each of 3 enzymes, namely glucose-6-phosphate dehydrogenase (g6pd), malic enzyme (me) and peptidase valine-leucine (pepa). of these, three loci, namely, g6pd-1, me-1 an ... | 2011 | 21323163 |
| echinostoma revolutum infection in children, pursat province, cambodia. | to determine the prevalence of helminthic infections in pursat province, cambodia, we tested fecal specimens from 471 children, 10-14 years of age, in june 2007. the prevalence of infection with echinostome flukes ranged from 7.5% to 22.4% in 4 schools surveyed. adult worms were identified as echinostoma revolutum. | 2011 | 21192870 |
| genetic variation and relationships of four species of medically important echinostomes (trematoda: echinostomatidae) in south-east asia. | multilocus enzyme electrophoresis (mee) and dna sequencing of the mitochondrial cytochrome c oxidase subunit 1 (co1) gene were used to genetically compare four species of echinostomes of human health importance. fixed genetic differences among adults of echinostoma revolutum, echinostoma malayanum, echinoparyphium recurvatum and hypoderaeum conoideum were detected at 51-75% of the enzyme loci examined, while interspecific differences in co1 sequence were detected at 16-32 (8-16%) of the 205 alig ... | 2010 | 21129506 |
| genetic characterization of echinostoma revolutum and echinoparyphium recurvatum (trematoda: echinostomatidae) in thailand and phylogenetic relationships with other isolates inferred by its1 sequence. | echinostomatidae are common, widely distributed intestinal parasites causing significant disease in both animals and humans worldwide. in spite of their importance, the taxonomy of these echinostomes is still controversial. the taxonomic status of two species, echinostoma revolutum and echinoparyphium recurvatum, which commonly infect poultry and other birds, as well as human, is problematical. previous phylogenetic analyses of southeast asian strains indicate that these species cluster as siste ... | 2010 | 21120529 |
| revealing the secret lives of cryptic species: examining the phylogenetic relationships of echinostome parasites in north america. | the recognition of cryptic parasite species has implications for evolutionary and population-based studies of wildlife and human disease. echinostome trematodes are a widely distributed, species-rich group of internal parasites that infect a wide array of hosts and are agents of disease in amphibians, mammals, and birds. we utilize genetic markers to understand patterns of morphology, host use, and geographic distribution among several species groups. parasites from >150 infected host snails (ly ... | 2010 | 20064622 |
| genetic differentiation of echinostoma revolutum and hypodereaum conoideum from domestic ducks in thailand by multilocus enzyme electrophoresis. | echinostomes are common intestinal parasites causing zoonotic disease, which are endemic worldwide. of the four species of medically important echinostomes reported in thailand, two species, echinostoma revolutum and hypodereaum conoideum, have been detected in poultry. these two parasites are morphologically similar and are sometimes difficult to distinguish. in the present study, multilocus enzyme electrophoresis was used to differentiate e. revolutum from h. conoideum collected from domestic ... | 2010 | 19712535 |
| invaders of an invader--trematodes in potamopyrgus antipodarum in poland. | the subject of the following study was the natural and experimental invasion of trematode larvae in potamopyrgus antipodarum from bory tucholskie national park (poland). only one out of the 14,908 dissected specimens had oval sporocysts and mature cercariae of fish fluke, which belongs to the sanguinicolidae family. it is the first recorded case in the european population of p. antipodarum living in inland water. the experimental study showed the possibility of native metacercariae (echinostoma ... | 2009 | 19249307 |
| intermediate host availability masks the strength of experimentally-derived colonisation patterns in echinostome trematodes. | a fundamental goal of parasite evolutionary ecology is to elucidate patterns of host use and determine the underlying mechanisms of parasite colonisation. in order to distinguish the relative contributions of host encounter rates and host compatibility to infection outcomes, we compared host use in both field and experimental laboratory settings. two years of bi-weekly snail sampling at a freshwater pond demonstrated fluctuating availability among three potential second intermediate snail host s ... | 2009 | 19026653 |
| echinostome metacercariae cyst elimination in rana clamitans (green frog) tadpoles is age-dependent. | host response to parasite exposure is an important determinant of the outcome of host-parasite interactions. factors such as host body condition and age can strongly influence host response to parasites and infection. this study followed echinostoma revolutum infection levels in larval green frogs (rana clamitans) exposed at 2 different ages. tadpoles at early developmental stages are more susceptible to the adverse effects of echinostomes. green frog tadpoles approximately 2 wk apart in age and ... | 2009 | 18850770 |
| cross-sectional survey on helminth infections of chickens in the samsun region, turkey. | a cross-sectional survey was performed to determine the prevalence and intensity of helminth infections in 185 chickens from nine districts in the samsun region, northern turkey between july 1999 and june 2000. in total, 88% of 83 scavenging chickens and 4% of 52 layers from laying batteries were infected, but none of the 50 broilers harboured helminths in the alimentary tract or trachea. the difference in prevalence was statistically significant among broilers, layers from laying batteries and ... | 2008 | 18605376 |
| [taxonomic, topical and quantitative structure of the community of intestinal flukes (digenea) of mallards, anas platyrhynchos linnaeus, 1758 from the area of szczecin]. | taxonomic, topical and quantitative structure of the community of intestinal flukes (digenea) of mallards, anas platyrhynchos linnaeus, 1758 from the area of szczecin. a total of 55 mallards (anas platyrhynchos l.) from the area of szczecin were examined for the presence of intestinal flukes (digenea). this study covered the taxonomic structure (specific composition and taxonomic affiliation of the parasites), topical structure (parasites' distribution within the host's organism), and quantitati ... | 2002 | 16894718 |
| biological control of fasciola gigantica with echinostoma revolutum. | a field trial was carried out in west java to investigate the potential for control of fasciolosis of antagonism between larvae of fasciola gigantica and echinostoma revolutum in lymnaea rubiginosa. the trial was undertaken in 26 farmers' irrigated rice fields, each chosen because it was adjacent to a cattle pen the effluent from which flowed into or was used as fertiliser in the rice field. fourteen of the fields chosen at random were retained as controls and received no treatment while in 12, ... | 2006 | 16854529 |
| a survey of waterfowl for echinostomes and schistosomes from lake wanaka and the waitaki river watershed, new zealand. | waterfowl from lake wanaka and the waitaki lakes watershed of new zealand's south island were surveyed to find natural hosts with adult echinostomes and schistosomes to provide sufficient numbers of eggs for laboratory studies. the canada goose (branta canadensis) was found to host an echinostome determined to be a new zealand strain of echinostoma revolutum. the new zealand scaup (aythya novaeseelandia) concurrently hosts three species of echinostomes (e. revolutum, echinoparyphium cinctum and ... | 2006 | 16469170 |
| differences in shell shape of naturally infected lymnaea stagnalis (l.) individuals as the effect of the activity of digenetic trematode larvae. | the shells of lymnaea stagnalis show great morphological variability. this phenomenon has been described as the result of an environmental influence. the main object of the present study was to compare some biometric data from shells of naturally infected and uninfected snails from 25 different lakes in the central part of poland. the height of the shell, the height of the spiral, and the width of the shell were measured. some inter- and intrapopulation differences among individuals were found. ... | 2005 | 16419747 |
| storage and incubation of echinostoma revolutum eggs recovered from wild branta canadensis, and their infectivity to lymnaea tomentosa snails. | echinostoma revolutum eggs recovered from naturally infected wild canada geese (branta canadensis) were cold stored (4-6 degrees c) for up to 72 weeks. successful hatching followed incubation for from 6 to 8 days at an optimum temperature of between 25 and 30 degrees c. a partial life cycle from adult worm to metacercarial encystment in lymnaea tomentosa snails was completed in the laboratory. snails were infected both by free miracidia and by ingestment of unhatched embryonated eggs. infection ... | 2005 | 16336715 |
| infection status with helminthes in feral cats purchased from a market in busan, republic of korea. | the present study was performed to investigate the infection status with helminth in a group of feral cats in korea. more than 29 helminth species including adults or eggs were detected in visceral and fecal samples of the examined cats. among these were a host of nematodes, including toxocarids, ancylostoma sp. and the larva of anisakis simplex; trematodes, including clonorchis sinensis, paragonimus westermani, eurytrema pancreaticum, pharyngostomum cordatum, metagonimus spp., heterophyes nocen ... | 2005 | 16192750 |
| do larvae of trichobilharzia szidati and echinostoma revolutum generate behavioral fever in lymnaea stagnalis individuals? | the objective of this study was to determine whether individuals of lymnaea stagnalis naturally parasitized with trichobilharzia szidati and echinostoma revolutum can generate the behavioral fever against larvae of those parasites. thermal preferences of each snail were examined in an oblong thermal gradient during 48 h observation. uninfected animals under study chose higher temperatures than those releasing cercariae of parasites. infected snails kept in constant temperature lived shorter than ... | 2005 | 15952039 |
| phylogenetic relationships of echinostoma rudolphi, 1809 (digenea: echinostomatidae) and related genera re-assessed via dna and morphological analyses. | in order to investigate the relationships within the echinostomatidae two data sets of gene sequences were analysed. the first consisted of all previously published nd1 sequences (20) together with 17 new sequences. the latter represented six species from the cosmopolitan genera echinostoma, echinoparyphium, hypoderaeum and isthmiophora. the second data-set of its sequences again included all previously published sequences (12) and three new sequences from species of echinostoma, echinoparyphium ... | 2003 | 12652069 |
| effects of diet and echinostoma revolutum infection on energy allocation patterns in juvenile lymnaea elodes snails. | resource allocation strategies may be influenced by both biotic and abiotic factors. the purpose of this study was to investigate the effects of both parasitism and diet quality on the growth, reproduction, and survival of the pond snail, lymnaea elodes. in addition, we assessed parasite growth and reproduction. high-protein (high diet) or low-protein diets (low diet) were fed to juvenile l. elodes snails that were either exposed or sham-exposed to the castrating trematode, echinostoma revolutum ... | 2003 | 12647119 |
| [the helminth fauna of indigenous white storks (ciconia ciconia)]. | 120 carcasses of white storks originating from the federal countries saxonia-anhalt and brandenburg where examined between 1994 and 2000 for internal parasites. the established parasite spectrum consisted of 8 trematode (tylodelphis excavata, chaunocephalus ferox, cathemasia hians, echinostoma revolutum, echinoparyphium sp., monilifer spinulosus, ignavia ciconiae and brachylaimus sp.), 4 cestode (anomotaenia discoidea and 3 hymenolepidae species) and at least 3 nematode species (capillaria spp., ... | 2002 | 12481650 |
| [human parasitizing echinostomatata (trematoda, fasciolidae) in mammals in belorussian forest zone]. | domestic and wild mammals in byelorussian polesye have been found to have 3 species of echinostomatates known as human parasites: echinochasmus perfoliatus (ratz, 1908), echinostoma revolutum (froelich, 1802) and isthmiophora (= euraryphium) melis (schrank, 1788). human beings may be infected on ingestion of mollusks, fish, and amphibia (frogs) invaded with larvae of these helminths. although, cases of human invasion have not been recorded in byelarus, there is an infection risk group, this shou ... | 2002 | 12224269 |
| photo- and geo-orientation by echinostome cercariae results in habitat selection. | the effect of light and gravity on orientation was studied in cercariae of 4 echinostome species: pseudechinoparyphium echinatum, echinostoma revolutum, hypoderaeum conoideum, and isthmiophora melis. the cercariae were placed into vertical and horizontal cuvettes, illuminated with 2 different light intensities from various directions, and their distribution recorded for 6 hr each species showed its individual pattern of horizontal photo-orientation and geo-orientation, with distinct changes duri ... | 2001 | 11426711 |
| intraspecific variation in the rdna its loci of 37-collar-spined echinostomes from north america: implications for sequence-based diagnoses and phylogenetics. | the recent finding of the 37-collar-spined echinostoma revolutum in north america prompted rdna nucleotide sequence comparisons between this worm and the sympatric echinostoma trivolvis. three isolates of e. revolutum from distinct sites and 2 isolates of e. trivolvis collected from a single site were used in this analysis. sequence data were compared to those from previously sequenced members of the 37-collar-spine group. the 3 north american isolates of e. revolutum were found to be identical, ... | 1998 | 9794643 |
| chemo-orientation of echinostome cercariae towards their snail hosts: the stimulating structure of amino acids and other attractants. | the cercariae of pseudechinoparyphium echinatum and echinostoma revolutum locate their host snails by turning back when swimming in decreasing gradients of the small molecular weight fraction (< 500) of snail conditioned water. fractionation and chemical modifications of snail conditioned water from lymnaea stagnalis showed that amino acids are necessary for the stimulating activity of snail conditioned water. a complete mixture of amino acids in concentrations determined from snail conditioned ... | 1998 | 9559370 |
| chemo-orientation of echinostome cercariae towards their snail hosts: amino acids signal a low host-specificity. | the cercariae of pseudechinoparyphium echinatum and echinostoma revolutum approach their intermediate host snails by turning back when swimming in decreasing concentration gradients of snail conditioned water. host stimuli are small molecular amino compounds, probably amino acids. this response was inhibited reversibly when the cercariae were treated with 0.45 microm-silver nitrate. as silver nitrate binds to the ciliated papillae of the cercarial surface, papillar chemoreceptors may be involved ... | 1998 | 9559369 |
| mitochondrial nd1 gene sequences used to identify echinostome isolates from australia and new zealand. | echinostomes were collected in australia and new zealand as cercariae, metacercariae or adults. using dna sequences from the mitochondrial nd1 gene echinostoma revolutum and echinostoma paraensei were discovered in australia. the presence of a further five, as yet unidentified, echinostome species was inferred in northern australia and a further isolate, closely allied to e. revolutum, occurs in new zealand. nd1 sequences of species within the genus diverge from each other by 9.6-30.8%. sequence ... | 1998 | 9559367 |
| observations on echinostoma revolutum and echinostoma trivolvis in single and concurrent infections in domestic chicks. | studies were done to determine specific differences between adults of echinostoma revolutum and echinostoma trivolvis grown singly and concurrently in domestic chicks. worm recovery at 10-21 days post-infection (p.i.) of e. revolutum and e. trivolvis in singly infected chicks was 21 and 17%, respectively; in concurrent infections, worm recovery for e. revolutum and e. trivolvis was 21 and 16%, respectively. the body area of e. trivolvis was 1.5-2.0 times greater than that of e. revolutum at 10-2 ... | 1997 | 9421718 |
| in vivo and ectopic encystment of echinostoma revolutum and chemical excystation of the metacercariae. | in vivo and ectopic encystment of the cercariae of echinostoma revolutum from lymnaea elodes snails in indiana and chemical excystation of the metacercariae were studied. in vivo encystment occurred in adults of biomphalaria glabrata and helisoma trivolvis (colorado strain) snails and in neonatal and juvenile l. elodes snails. these results were expected because 37-collar-spined echinostoma species show broad specificity in their second intermediate gastropod hosts. encysted metacercariae of e. ... | 1997 | 9105306 |
| infectivity and growth of echinostoma revolutum (froelich, 1802) in the domestic chick. | infectivity and growth studies in domestic chicks were carried out on a strain of echinostoma revolutum isolated from lymnaea elodes snails in indiana, u.s.a. of 21 chicks, each fed 40 +/- 10 cysts of echinostoma revolutum, 16 (64%) were infected with a total of 269 (32%) worms from approximately 840 cysts. worms were found only in the ceca and rectum at 2-14 days p.i. in vivo excysted metacercariae were obtained in the lower ileum and ceca at 4 h p.i. excysted metacercariae averaged 0.2 mm in l ... | 1997 | 9076539 |
| the occurrence and identification of echinostoma revolutum from north american lymnaea elodes snails. | lymnaea elodes snails collected in northern indiana, u.s.a., were infected with larval stages of an echinostome bearing 37 collar spines and resembling members of the echinostoma group. the taxonomic status of this digenean was determined through experimental infections of various definitive and first-intermediate hosts. in addition, characteristics of the penetration and paraesophageal glands in cercariae from this echinostomatid were compared with those from e. revolutum and e. trivolvis. resu ... | 1997 | 9057720 |
| finding and recognition of the snail intermediate hosts by 3 species of echinostome cercariae. | finding and recognition of snail second intermediate hosts was studied in cercariae of 3 echinostome species. the cercariae of the 3 species accumulated in snail-conditioned water (scw) with 2 types of orientation mechanisms and responded to different small molecular weight ( < 500 da) components of scw. pseudechinoparyphium echinatum and echinostoma revolutum cercariae returned by swimming an arc, when swimming in decreasing concentration gradients of scw (turn-back swimming). the stimulating c ... | 1995 | 7885732 |
| helminths and ectoparasites of the common snipe (capella gallinago l.) from southwest texas and monte vista national wildlife refuge, colorado. | sixty common snipe, (capella gallinago), collected from hudspeth county, texas and 13 collected from monte vista national wildlife refuge, colorado were examined for metazoan parasites. the parasites recovered were cestoda: amoebotaenia fuhrmanni, haploparaxis brachyphallos, haploparaxis crassirostris, haploparaxis echinovatum, haploparaxis sp., hymenolepis calumnacantha, hymenolepis sp. i, hymenolepis sp. ii; trematoda: cyclocoelum mutabile, echinostoma revolutum, tanaisia fedtschenkoi; nematod ... | 1980 | 7463609 |
| homologous and heterologous resistance in echinostoma revolutum infections in mice. | homologous and heterologous resistance in echinostoma revolutum infections was studied in mice. a high level of homologous resistance was demonstrated in mice harbouring a 13-day-old primary e. revolutum infection with 9--10 and 11--15 worms, corresponding to a 70.0 and 66.7% reduction in the size of the established worm burden as compared with that of the challenge control group. a 14- and 20-day-old primary infection with 3--4 worms induced a level of resistance of 61.7 and 81.8% respectively, ... | 1980 | 7393619 |
| echinostoma revolutum: labeling of miracidia with radioselenium in vivo and assay for host finding. | 1980 | 7389859 | |
| further studies on resistance to fasciola hepatica and echinostoma revolutum in mice infected with schistosoma sp. | schistosoma sp. induced cross-resistance to a challenge with fasciola hepatica and echinostoma revolutum was studied in mice. primary patent 56-days-old s. intercalatum and s. bovis infections stimulated a statistically significant level of resistance to a challenge with f. hepatica, and primary patent 100-day-old s. bovis infections induced an almost complete resistance to a challenge with e. revolutum. primary single-sex s. mansoni infections, either male or female, aged 90 days did not stimul ... | 1981 | 7314810 |
| homologous immunotolerance and decreased resistance to schistosoma mansoni in echinostoma revolutum-infected mice. | homologous immunotolerance was demonstrated in echinostoma revolutum infections in the mouse. high-level infections of about 15 worms were not expelled for a period of at least 61 days following infection, whereas low-level infections of about 10 to 12 worms or below were eliminated completely between day 47 and 61 after infection. a primary, 20- to 33-day-old, heavy e. revolutum infection in the mouse produced a statistically significant increase in the number of schistosoma mansoni recovered i ... | 1981 | 7241274 |
| in vitro pairing of echinostoma revolutum (trematoda) metacercariae and adults, and characterization of worm products involved in chemoattraction. | in vitro pairing studies were done on chemically excysted metacercariae and on adults of echinostoma revolutum maintained in vitro in agar-locke's petri dish cultures at 39 +/- 1 c for up to 24 hr. whereas newly excysted metacercariae did not pair, both immature and mature adults showed significant pairing. adult echinostomes confined in dialysis sacs emitted excretory-secretory (ec) products which significantly attracted single echinostome adults in vitro. only the lipophilic fraction of es pro ... | 1980 | 7218094 |
| localization, length and reproduction in single- and multiple-worm infections of echinostoma revolutum (trematoda) in the chick. | mono-metacercarial infections of echinostoma revolutum in the domestic chick yielded 14- or 15-day-old worms that produced viable eggs, indicating that this species can self-fertilize under conditions which preclude cross-fertilization. in multiple infection studies, chicks were fed either 5 or 10 cysts and each infected chick contained 2-7 worms at necropsy 14 or 15 days later. worms from multiple infections were mainly paired or clustered and they tended to locate more posteriorly in the intes ... | 1981 | 7208104 |
| cultivation of excysted metacercariae of echinostoma revolutum (trematoda) in chick embryos. | 1983 | 6853021 | |
| parasites of waterfowl, from southwest texas: iii. the green-winged teal, anas crecca. | seventy of 72 green-winged teal, anas crecca, from southwest texas were infected with parasites. seventeen species of endoparasites were recorded: notocotylus attenuatus, zygocotyle lunata, typhlocoelum sisowi, echinostoma revolutum, hypoderaeum conoideum, dendritobilharzia pulverulenta, cloacotaenia megalops, sobolevicanthus gracilis, sobolevicanthus krabbeella, gastrotaenia cygni, amidostomum acutum, amidostomum anseris, tetrameres crami, echinuria uncinata, corynosoma constrictum, polymorphus ... | 1981 | 6788963 |
| further studies on in vitro pairing of echinostoma revolutum (trematoda) adults. | various factors that influence in vitro pairing of echinostoma revolutum adults were studied. more worms paired in locke's, ringer's, and 0.85% nacl solutions than in the defined medium nctc 135. also, more pairing occurred at 39 or 43 degrees c than at 35 degrees c. echinostomes placed 1, 3, or 5 cm apart in 5.5 cm diameter petri dishes as well as those placed 2, 4, or 6 cm apart in 8.5 cm diameter petri dishes paired; however, worms placed 8 cm apart in the latter dishes did not. individuals m ... | 1984 | 6741219 |
| thymus-independent crypt hyperplasia and villous atrophy in the small intestine of mice infected with the trematode echinostoma revolutum. | conventional mice and congenitally athymic, nude mice were infected with 20 metacercariae of the intestinal trematode echinostoma revolutum. the sequential events in the pathological changes in the intestine were studied at different intervals post-infection. by day 11 onwards the conventional mice displayed dilatation of the region of the intestine which harboured the parasites. the mucosa in the dilated region showed marked crypt hyperplasia, villous atrophy and subepithelial fibrosis as the m ... | 1984 | 6739130 |
| scanning electron microscopy of echinostoma revolutum (trematoda) during development in the chick embryo and the domestic chick. | 1984 | 6706466 | |
| densitometric thin-layer chromatographic analyses of free sterols in echinostoma revolutum (trematoda) adults and their excretory-secretory products. | 1983 | 6631647 | |
| trypanosoma brucei-induced blockage of expulsion of echinostoma revolutum and of homologous e. revolutum resistance in mice. | experiments were designed to study the effect of trypanosoma brucei on the expulsion of echinostoma revolutum and on the development and maintenance of homologous e. revolutum resistance in the mouse. t. brucei given 3, 2, and 1 wk before and 1 wk after infection with e. revolutum completely inhibited the expulsion of the e. revolutum worm burden for a period of at least 6 wk following infection, and t. brucei given 2 or 3 wk after infection with e. revolutum conferred a significant delay in the ... | 1984 | 6502358 |
| infectivity, growth and development of echinostoma revolutum (trematoda) in the domestic chick. | infectivity, growth and development were studied in 23 one-day-old domestic chicks each fed 25 pre-selected metacercarial cysts of echinostoma revolutum. all chicks were infected at necropsy one to 44 days post-exposure with one to 18 flukes/chick. from the 575 cysts fed to chicks, 145 (25%) flukes were recovered from the ileum, caeca, rectum-cloaca and bursa of fabricius. length measurements on 113 uncurled flukes fixed in hot alcohol-formalin-acetic acid showed that worms grew slowly to 1.0 mm ... | 1984 | 6501857 |
| helminth fauna of sandhill crane populations in texas. | three species of trematode [orchipedium jolliei schell, 1967; prohyptiamus grusi kocan, waldrup, ramakka, and iverson, 1982; echinostoma revolutum (froelich, 1802)], three species of nematode (tetrameres grusi shumakovich, 1946; synhimanthus sp.; contracaecum sp.), and one species of cestode (anomotaenia sp.) were recovered from 146 sandhill cranes, grus canadensis (linnaeus), collected in alaska, canada, and two areas in texas. the only common and abundant species were o. jolliei and t grusi. o ... | 1984 | 6492322 |
| redial populations of echinostoma revolutum developing in snails of different sizes. | 1967 | 6078608 | |
| on the life history and distribution of echinostoma revolutum (froleich, 1802) in orissa. | 1966 | 5966980 | |
| effects of temperature on the development and hatching of eggs of the trematode echinostoma revolutum. | 1969 | 5816329 | |
| histochemical glycogen studies on echinostoma revolutum. | 1968 | 5757678 | |
| cultivation of echinostoma revolutum (trematoda) on the chick chorioallantois. | 1968 | 5757677 | |
| transplantation of echinostoma revolutum (trematoda) into normal and surgically altered chick intestine. | 1968 | 5643352 | |
| reproduction of echinostoma revolutum rediae when transferred to uninfected snails of different sizes. | 1968 | 5641049 | |
| sterols in ascaris lumbricoides (nematoda), macracanthorhynchus hirudinaceus and moniliformis dubius (acanthocephala), and echinostoma revolutum (trematoda). | 1970 | 5504522 | |
| temperature tolerance of echinostoma revolutum on the chick chorioallantois. | 1969 | 5361600 | |
| a histopathologic study of lymnea auricularia var. rufescens infected with the larval stages of echinostoma revolutum. | 1966 | 5299049 | |
| observations on the development of two echinostomes, echinoparyphium recurvatum and echinostoma revolutum, the antagonists of human schistosomes in egypt. | 1974 | 4472221 | |
| antagonistic interaction between echinostoma revolutum and echinoparyphium recurvatum (trematoda) in the definitive host. | 1974 | 4412040 | |
| antagonism of echinostoma revolutum against schistosoma mansoni in the snail biomphalaria alexandrina. | 1974 | 4412039 | |
| oxygen consumption in adult echinostoma revolutum. | 1968 | 4302386 | |
| notes on glycogen deposits in limnaea auricularia var. rufescens and the parasitic larval stages of fasciola gigantica and echinostoma revolutum. a histochemical study. | 1968 | 4190113 | |
| sterols of echinostoma revolutum (trematoda) adults. | 1985 | 4093821 | |
| [lymnaea truncatula (müller, 1774)--the 1st and 2d intermediate hosts of echinostoma revolutum (fröhlich, 1802) and hypoderaeum conoideum (bloch, 1782)]. | lymnaea truncatula (müller, 1774) is recorded as the first and second intermediate host of echinostoma revolutum (fröhlich, 1802) and hypoderaeum conoideum (bloch, 1782) adults were obtained by the feeding of metacercariae to chickens. | 1985 | 4047720 |
| bioavailability of chloroquine in mice infected with the intestinal trematode echinostoma revolutum. | 1985 | 4024964 | |
| gastrointestinal helminths of the mexican duck, anas platyrhynchos diazi ridgway, from north central mexico and southwestern united states. | twenty-five species of helminths, recovered from the gastrointestinal tracts of 129 mexican ducks from mexico and the united states, were all new host records. the species included: echinoparyphium recurvatum, echinostoma revolutum, hypoderaeum conoideum, notocotylus attenuatus, prosthogonimus cuneatus, zygocotyle lunata, anomotaenia ciliata, cloacotaenia megalops, diorchis bulbodes, diorchis sp., drepanidotaenia lanceolata, echinocotyle rosseteri, fimbriaria fasciolaris, fimbriarioides sp., hym ... | 1986 | 3951061 |
| impairment of primary expulsion of echinostoma revolutum in mice concurrently infected with schistosoma mansoni. | the spontaneous expulsion of low-level echinostoma revolutum infections was markedly impaired in mice harbouring 4-week-old schistosoma mansoni infections at the time of infection with the echinostome. | 1985 | 3937853 |
| growth and feeding of echinostoma revolutum on the chick chorioallantois and in the domestic chick. | chemically excysted metacercariae of echinostoma revolutum cultivated on the chick chorioallantois grew slowly until day 5, more rapidly between 5 and 7 days, and slowly between 7 and 10 days. worms did not become ovigerous in this site by 12 days, at which time studies were terminated. in contrast, chemically excysted metacercariae reared in the domestic chick were ovigerous by day 9, at which time their mean body area was about 4 times greater than the largest chorioallantoic worms. histochemi ... | 1986 | 3806319 |
| clinical and pathological effects of echinostoma revolutum (digenea: echinostomatidae) in the golden hamster, mesocricetus auratus. | laboratory hamsters (mesocricetus auratus) were infected with echinostoma revolutum (trematoda). hamsters developed marked and sometimes fatal echinostomiasis. clinical signs included progressive unthriftiness, watery diarrhoea and weight loss. packed cell volume, haemoglobin and red blood cell counts increased in those animals with severe diarrhoea. no increase in eosinophils was noted in peripheral blood smears. examination of tissues of infected animals showed wide individual variations relat ... | 1986 | 3797062 |
| infectivity, growth, and development of echinostoma revolutum (digenea: echinostomatidae) in the golden hamster, mesocricetus auratus. | all 30 female golden hamsters, mesocricetus auratus, each fed 100 +/- 25 metacercarial cysts of echinostoma revolutum were found to be infected 2 to 105 days post-infection with 3 to 103 (avg. 38) flukes in the small intestine. worm wet weights averaged 0.6 mg at 9 days, 3.5 mg at 14 days, and 19 mg at 42 days; average dry weights for the identical days were 0.2, 1.2 and 5.8 mg, respectively. the average body length of worms fixed in hot (80 c) alcohol-formalin-acetic acid was 0.33 mm on day 2, ... | 1986 | 3712170 |
| echinostoma revolutum: resistance to secondary and superimposed infections in mice. | a complete or almost complete resistance (94-100%) to a superimposed echinostoma revolutum infection existed in mice harboring 20-, 30-, and 40-day-old infections in the range of 2-4 to 30-35 worms, but no resistance was found at challenge day 10. a similar high level of resistance (85-100%) also existed in mice for at least 6 weeks after natural expulsion of a primary 6 metacercarial infection and for at least 5 weeks after anthelmintic termination of a 30-day-old 20 metacercarial infection. th ... | 1986 | 3709749 |
| [cercarial chaetotaxy of echinostoma revolutum (froelich, 1802) and e. echinatum (zeder, 1803) (trematoda, echinostomatidae)]. | the life-cycles of echinostoma revolutum and e. echinatum were carried out by using cercariae emitted by naturally infected molluscs. e. revolutum strain was issued from lymnaea auricularia, e. echinatum from lymnaea truncatula and planorbis planorbis, planorbarius corneus produced an echinostome which may possibly be e. echinatum or another species e. sp. metacercarial stages and adults were obtained from laboratory experimental hosts. none of these adult echinostomes displayed well-defined mor ... | 1987 | 3662328 |
| infectivity of echinostoma revolutum miracidia for laboratory-raised pulmonate snails. | 1987 | 3656000 | |
| experimental infection of corbicula fluminea (bivalvia: corbiculidae) with echinostoma revolutum cercariae. | 1987 | 3598813 | |
| site-finding and pairing of echinostoma revolutum (trematoda) on the chick chorioallantois. | site-finding of 14-day-old echinostoma revolutum from the domestic chick was studied by inoculating single worms into various sites on the chorioallantoic membrane (cam) of 13-day-old chick embryos. regardless of the site of inoculation, single worms were attracted significantly to the area of the cam above the embryo. more worms were found in this site at 24 than at 1 hr postinoculation. worm-pairing was studied in chick embryos by inoculating 2 worms in separate windows, 2 cm apart. worm-pairi ... | 1987 | 3598804 |
| experimental infection of physa heterostropha, helisoma trivolvis, and biomphalaria glabrata (gastropoda) with echinostoma revolutum (trematoda) cercariae. | gross and histologic studies were done on laboratory-raised physa heterostropha, helisoma trivolvis, and biomphalaria glabrata snails exposed individually to 100 cercariae of echinostoma revolutum. cercariae showed a predisposition for the kidneys of snails. they entered the nephridiopore, migrated up the tubular kidney, and encysted in the saccular kidney within 2 hr. considerably more cysts were in the kidney of b. glabrata at 24 hr than in h. trivolvis or p. heterostropha kidneys. encysted me ... | 1987 | 3572665 |
| echinostoma revolutum in mice; dynamics of the antibody attack to the surface of an intestinal trematode. | 1986 | 3536773 | |
| ultrastructure of a new type of sensory ending in echinostoma revolutum cercaria (trematoda: echinostomatidae). | two pairs of hitherto unknown multiciliate sensory endings have been demonstrated in free-swimming cercariae of echinostoma revolutum using transmission and scanning electron microscopy. this type of receptor consists of a bundle of 36--40 short, conically projecting cilia ensheathed by a collar formed by a circular evagination of tegument in shape of a cup. the cilia projecting from the centre of a widened nerve fibre, filled with electron-lucid vesicles, possess a well developed basal body and ... | 1987 | 3428762 |
| multiciliate sensory endings in the redia of echinostoma revolutum (trematoda, echinostomatidae). | in addition to uniciliate sensory endings, three types of multiciliate sensory endings have been demonstrated on the anterior end of echinostoma revolutum redia using transmission and scanning electron microscopy. this is the first finding of multiciliate sensory endings in the parthenogenetic generation of trematodes. in the first type, 12 cilia are situated in a pit communicating with the tegument surface. in the second and third types, there are two and four short cilia, respectively. they pr ... | 1988 | 3417196 |
| single and concurrent infections of the golden hamster, mesocricetus auratus, with echinostoma revolutum and e. liei (trematoda: digenea). | single or concurrent infections of the intestinal trematodes echinostoma revolutum and e. liei were studied in the golden hamster (mesocricetus auratus). in single infections, some hamsters were fed 25 +/- 5 metacercarial cysts and others 100 +/- 25 cysts of either e. revolutum or e. liei. in concurrent infections, hamsters were fed simultaneously 20 +/- 5 metacercarial cysts of e. revolutum and 20 +/- 5 cysts of e. liei or 100 +/- 25 cysts each of both trematodes. all hamsters exposed singly to ... | 1988 | 3397821 |