| its-2 rdna sequencing of gnathostoma species (nematoda) and elucidation of the species causing human gnathostomiasis in the americas. | from several gnathostome species the complete internal transcribed spacer its-2 ribosomal dna (rdna) repeat sequence and a fragment of the 5.8s rdna were obtained by direct polymerase chain reaction cycle-sequencing and silver-staining methods. the size of the complete its-1 sequence in agarose gel electrophoresis was also obtained. the its-2 enabled the differentiation of gnathostoma spinigerum from thailand and gnathostoma binucleatum from mexico and ecuador and confirmed the validity of the l ... | 2000 | 10864252 |
| confirmation of gnathostoma binucleatum almeyda-artigas, 1991, advanced third-stage larvae in tres palos lagoon, mexico, by morphological and molecular data. | advanced third-stage larvae of gnathostoma sp. corresponding to 6 morphotypes, distinguished on the basis of the shape of the cephalic hooklets, were collected from the muscle tissue of 5 species of freshwater fish (i.e., dormitator latifrons, eleotris picta, gobiomorus maculatus, ariopsis guatemalensis, and cichlasoma trimaculatum) in tres palos lagoon, guerrero, mexico. principal components analysis of 4 morphological characters cluster all samples in a single taxonomic group. a minimum amount ... | 2005 | 17089777 |
| parasites of wild felidae in thailand: a coprological survey. | ninety-two fecal samples were collected from leopards (panthera pardus, n = 54), tigers (p. tigris, n = 19), and leopard cats (felis bengalensis, n = 3) in huai kha wildlife sanctuary, thailand; four samples that may have come from clouded leopards (neofelis nebulosa) or asian golden cats (felis temminicki) were identified as from small to medium cats. twelve samples were identified as from large cats. samples preserved in 10% formalin were examined for parasite eggs, larvae, cysts, and oocysts ... | 1994 | 7933301 |
| [gnathostomiasis in mexico]. | since 1975, increasing numbers of patients with inflammatory, migrant, recidivant nodules were observed in the towns of temazcal, state of oaxaca, tierra blanca, veracruz and others along the papaloapan river. larvae of gnathostoma sp. have been obtained from some of them. the local species, although not completely identified, must be very close to g. spinigerum. infection is related to ingestion of "ceviche", a very popular mexican delicacy made with raw cyclid fishes of the miguel aleman dam. ... | 1989 | 2588073 |
| studies on endoparasites of the black bear (ursus americanus) in the southeastern united states. | examination of 53 black bears (ursus americanus) from six states in the southeastern united states revealed at least 17 species of endoparasites, including sarcocystis sp., spirometra mansonoides (spargana), macracanthorhynchus ingens, ancylostoma caninum, arthrocephalus lotoris, baylisascaris transfuga, capillaria aerophila, capillaria putorii, crenosoma sp., cyathospirura sp., dirofilaria immitis, gnathostoma sp., gongylonema pulchrum, microfilariae, molineus barbatus, physaloptera sp. and str ... | 1978 | 418189 |
| [gnathostomiasis in brazil: case report]. | gnathostomiasis is an endemic disease in asian countries caused by the ingestion of larval stage of gnathostoma sp roundworms that may be acquired by eating raw fresh-water fish. it can reach many organs and the skin is one of them, characterized by creeping eruptions and/or migrating erythema. since 1970 the number of patients affected seems to be increasing in central and south america countries like mexico and peru. this is the first notification and publication of gnathostomiasis in brazil, ... | 2009 | 19851673 |
| a new species of gnathostoma (nematoda: gnathostomatidae) in procyon lotor hernandezii from mexico. | gnathostoma lamothei n. sp., inhabiting the stomach of procyon lotor hernandezii wagler, 1831, in tlacotalpan, veracruz state, and rio sapo, oaxaca, mexico, is described. this new species differs from all other congeners by having the posterior half of the body surface covered by rows of tiny round bosses instead of spines, or lacking ornamentations. sequences of the its2 of the ribosomal dna of g. lamothei n. sp. are compared with sequences of other species of the genus recorded in mexico; they ... | 2005 | 16419762 |
| new host records of the nematode gnathostoma sp. in mexico. | gnathostomiasis is an emerging zoonosis in mexico. however, for most endemic zones, the source of human infection has not been established. during 2000-2003, we investigated 2168 vertebrates (2047 fish, 31 amphibians, 4 reptiles, 19 birds and 67 mammals) from 39 localities distributed in nine states. we registered 7 vertebrate species as new hosts for gnathostoma, and 22 new locality records for this nematode. | 2004 | 15710550 |
| characterization of monoclonal antibodies against gnathostoma nipponicum. | monoclonal antibodies (mabs) were produced against the proteins of advanced third-stage larvae (adl3) of gnathostoma nipponicum. six mabs (gn2c3, gn2h3, gn4c3, gn4e9, gnsh1, and gn10b7) were obtained as determined by enzyme-linked immunosorbent assay (elisa). gn4e9 and gnsh1 seemed to be genus-specific, as they did not cross-react with anisakis sp., dirofilaria immitis, gongylonema pulchrum, toxocara canis, trichinella sp., trichuris vulpis, metagonimus sp., or spirometra erinaceieuropaei by eli ... | 2003 | 12659325 |
| case report: ocular gnathostomiasis in northwestern mexico. | a 42-year-old woman from culiacan in the sinaloa state of mexico presented with a four-year history of migratory, pruritic, painful swellings of the face. palpebral edema with conjunctival erythema developed when lesions developed near the eye. routine eye examination showed a mobile worm in the anterior chamber. following surgical removal, the parasite was identified by light and electron microscopy as an advanced third-stage larva of gnathostoma sp. this prevalence of this helminthiasis may be ... | 2002 | 12201592 |
| gastric gnathostomiasis in a cat. | a mass found in the stomach of a 10-year old cat contained a female worm of the genus gnathostoma. the mass was described as a muscular pseudogranuloma induced by the worm. although the worm species could not be ascertained, it was concluded that the cat served as an aberrant host for a gnathostoma sp that usually infects wild mammals in the area. | 1987 | 3610757 |