| drug inhibition of anaphylactic histamine release from peritoneal cells of rats infected with toxocara canis. | an experimental model for studying anaphylactic histamine release from rat peritoneal cells in vitro is described. rats were sensitized by feeding the infective eggs of ttoxocara canis, the antigen being prepared from the infective eggs. the characteristics of histamine release are comparable with those found for other anaphylactic systems. addition of 0.2% inactivated normal rat serum to the incubation media reduced the spontaneous histamine release from 11.5 +/- 1.9% to 3.1 +/- 1.6% (mean +/- ... | 1975 | 50289 |
| specificity and sensitivity of skin test reactions to extracts of toxocara canis and ascaris suum ii. homologous 48-hour passive cutaneous anaphylaxis tests with sera from infected guinea pigs. | the specificity and sensitivity of adult and larval somatic antigens and perienteric fluid of toxocara canis and ascaris suum were investigated by using a modified passive cutaneous anaphylaxis procedure in guinea pigs. pooled sera from animals infected with low doses (0.01, 0.1, or 1.0 egg/g) were most reactive with the homologous larval antigen preparation. however, the toxocara antisera were highly reactive with this antigen only, whereas the ascaris antisera reactions could not be interprete ... | 1975 | 50748 |
| experimentally induced canine toxocariasis: laboratory examinations and pathologic changes, with emphasis on the gastrointestinal tract. | eght dogs were orally superinfected for 1 month with 50,000 embryonated toxocara canis ova. results of laboratory examinations during inoculation and for 2 weeks postinoculation revealed moderate leukocytosis, marked absolute eosinophilia, hypoalbuminemia, increased concentrations of serum glutamic pyruvate transaminase, and in 2 dogs, precipitating humoral antibodies. other changes were moderate ascites, hepatomegaly, lymphadenopathy, and focal lesions (0.5 to 3.0 mm) in liver, lung, kidney, in ... | 1975 | 53022 |
| the specificity of nematode allergens in the diagnosis of human visceral larva migrans. | extracts of nematodes have been used as skin test antigens in the diagnosis of nematode infections for many years. ascaris lumbricoides and toxocara canis are two nematodes commonly involved in human parasitism, the latter being associated with the clinical condition of visceral larva migrans. in vitro and in vivo experiments reported in this paper confirm experimentally, as well as clinically, the existence of cross-reacting antigens between t. canis and ascaris spp., and probably between t. ca ... | 1976 | 65168 |
| comparative evaluation of 7 helminth antigens in the enzyme-linked immunosorbent assay (e.l.i.s.a.). | 112 sera from europeans with parasitologically proven helminthiasis were tested in the enzyme-linked immunosorbent assay (e.l.i.s.a.) against 6 crude extracts of various helminths (2 of adult worms: dipetalonema viteae, fasciola hepatica; 3 of eggs: ascaris suum, toxocara canis, schistosoma mansoni; and of echinococcus granulosus scolices) and against bovine hydatid fluid. each serum was tested simultaneously at a fixed dilution of 1:160 against all antigens. extensive cross-reactions were obser ... | 1979 | 92420 |
| evaluation of serodiagnostic tests for visceral larva migrans. | four serologic techniques for the diagnosis of visceral larva migrans caused by toxocara canis, namely indirect hemagglutination (iha), bentonite flocculation (bf), enzyme-linked immunosorbent assay (elisa), and double diffusion in agar (ouchterlony), were evaluated using sera sent to the center for disease control from patients with a presumptive diagnosis of visceral larva migrans (vlm). patients having 5-6 of the clinical or laboratory criteria for vlm were designated as cases while those wit ... | 1978 | 98065 |
| an experimental approach to the study of intraocular toxocara canis. | an experimental study of nematode endophthalmitis due to t canis and review of the literature has been presented. six owl monkeys were infected either by nasogastric tube using embryonated t canis eggs or by carotid or intravitreal injection of second stage larvae. the clinical manifestations, especially ocular, were observed and various diagnostic tests performed. only minimal or no intraocular changes were seen after systemic infection but significant abnormalities such as retinal hemorrhages ... | 1979 | 120993 |
| serologic differentiation of adult toxocara and ascaris. | the antigenic analysis of toxocara canis a causative agent of visceral larva migrans and ascaris suum has been carried out. agar gel double diffusion techniques and its modifications were employed to determine whether or not crude antigens, obtained from the adult parasites: (a) contained components unique for each, (b) could be used to differentiate the parasites serologically. adult toxocara canis and ascanis suum antigens used in this study were found to contain several unique antigenic compo ... | 1979 | 121695 |
| [demonstration of antibodies during experimental toxocarosis using antigenic extract prepared from the adult parasit]. | the detection of antibodies in subjects with visceral larva migrans syndrome caused by toxocara canis is usually carried out with antigenic larvae, whose preparation presents some difficulties. results obtained using extracts prepared from adult parasites show that such antigens are quite suitable for the detection of antibodies present in visceral larva migrans syndrome. this phenomenon is easily understood when one considers that there are numerous antigenic points in common between the differ ... | 1976 | 134802 |
| dual infections of mice: visceral larva migrans and sublethal infection with japanese encephalitis virus. | experiments in 3 weeks old albino mice with toxocara canis and sublethal infection with je virus established a marked synergestic effect in dually infected mice. the results are discussed to indicate the possible role of visceral larva migrans in creating exploxive outbreaks of "acute encephalopathy syndrome" in individuals having simultaneous infection with a virus (es) which, alone, might produce only mild illness. the nature of the possible mechanisms involved yet remains to be understood. | 1975 | 167480 |
| [simple method for obtaining toxocara canis antigen for the indirect immunofluorescence technic]. | a simple method for the preparation of toxocara canis antigen for the indirect immunofluorescent test is described: embryonated toxocara eggs are treated for 12 hours at room temperature with a 1:1 mixture of 2% naho and sodium hypochlorite (naclo) solution with a concentration of 2% free chlorine in order to remove the outer layers of the egg shells. the larvae which are still enclosed in the lipid membrane are freed by mild ultrasonic treatment. thereafter, the suspension of larvae is washed a ... | 1975 | 239550 |
| anthelmintic efficacy of pyrantel pamoate against the roundworm, toxocara canis, and the hookworm, ancylostoma caninum, in dogs. | | 1978 | 250990 |
| the efficacy of amidantel, a new anthelmintic, on hookworms and ascarids in dogs. | amidantel is a new anthelmintic from a new chemical class with an interesting anthelmintic spectrum. in dogs amidantel is highly effective in a single oral dose of 25 mg/kg against both hookworm species, ancylostoma caninum and unicinaria stenocephala. in toxascaris leonina infected dogs a complete cure rate was achieved with a single oral dose of 50 mg/kg. similar results were obtained with 8 mg/kg administered three times per day. the most sensitive parasite to amidantel was found to be toxoca ... | 1979 | 295548 |
| anthelmintics. | this article describes the drugs used in helminthic infections and their therapeutic indications, mode of action, toxicity and other details of each of the recommended drugs, and discusses the nature and treatment of infection by helminths important in human medicine. infestation due to the roundworms enterobius vermicularis, ascaris lumbricoides and the hookworms, ancylostoma duodenale and necator americanus can all be treated effectively with pyrantel pamoate. for enterobius vermicularis, howe ... | 1977 | 319991 |
| helminths of british dogs: toxocara canis--a veterinary perspective. | | 1977 | 323572 |
| toxocara infection in pigs. the use of indirect fluorescent antibody tests and an in vitro larval precipitate test for detecting specific antibodies. | an in vitro larval precipitate test using second-stage toxocara canis larvae and an indirect fluorescent antibody (ifa) test employing cuticles of t. canis larvae as antigen were evaluated using antisera produced in pigs experimentally infected with t. canis, t. cati, ascaris suum, toxascaris leonina and parascaris equorum. the former test was both specific and sensitive and is suggested as a reliable and simple method of detecting toxocara antibodies in pigs. the latter test was considered unsu ... | 1977 | 328560 |
| visceral larva migrans. a review and reassessment indicating two forms of clinical expression: visceral and ocular. | visceral larva migrans is a disease in which the larvae of animal parasites invade human tissues but do not complete their life cycles. the most frequent cause of this illness in children is the dog roundworm, toxocara canis. a review of the literature, as well as our clinical experience, indicates that there are two forms of clinical expression: one, visceral, and the other, ocular. in general the clinical and laboratory abnormalities (hepatomegaly, recurrent pneumonia, eosinophilia, and hyperg ... | 1978 | 350038 |
| immunodiagnosis of parasitic zoonoses: comparative efficacy of three immunofluorescence tests using antigens purified by affinity chromatography. | three immunofluorescent antibody assays were developed during this study: the direct (dfat) and indirect (ifat) fluorescent antibody tests using frozen worm sections, and the cyanogen bromide indirect fluorescent antibody test (cnbr-ifat) using helminth antigens purified by affinity chromatography bound on to commercially prepared cnbr-sepharose 4b beads. purified antigens used in the cnbr-ifat gave greater specificity and sensitivity than either the dfat or ifat. dirofilaria immitis, toxocara c ... | 1978 | 354114 |
| the enzyme-linked immunosorbent assay and its application to parasitic infections. | the enzyme-linked immunosorbent assay (elisa) was used for the serodiagnosis of four parasitic infections. elisa was performed as a macromethod in polystyrene tubes and/or as a micromethod in polystyrene microplates. conventionally raised pigs were infected orally with different numbers of trichinealla spiralis larvae, and the pigs' sera were tested for antibody to t. spiralis. results were compared with those from sera of uninfected conventionally raised pigs. cynomolgus monkeys were infected o ... | 1977 | 409790 |
| [human larva migrans visceralis infections with toxocara in the german federal republic. serological investigations (author's transl)]. | the microprecipitation test on second generation larvae of toxocara canis has proved to be highly specific for the diagnosis of human larva migrans visceralis infection caused by toxocara species. out of a total of 2864 samples examined from 1969 to 1976, 248 were found to be positive. besides a very frequently occurring eosinophilia eye affections, lung changes and involvement of the cns are prominent clinical symptoms. the investigations show that larva migrans visceralis infections also occur ... | 1977 | 412096 |
| eosinophilic meningitis: a suspected case of angiostrongylosis found in shizuoka prefecture, honshu, japan. | a patient with eosinophilic meningitis in shizuoka prefecture, honshu, japan had nausea, vomiting and headache on admission; laboratory examinations revealed leukocytosis with eosinophilia. eight days later neck stiffness appeared. lumbar puncture showed an increase of the initial pressure in association with eosinophilic pleocytosis in the spinal fluid. the possibility of angiostrongylosis was considered because the patient had eaten raw slugs for 4 years as a remedy for lumbago. although the s ... | 1979 | 434313 |
| a survey of gastro intestinal helminth parasites of stray dogs in zaria, nigeria. | a survey of helminth parasites in stray dogs was carried out in the zaria area. out of 180 dogs examined 65.6 per cent (118/180) were found positive for ancylostoma caninum, while toxocara canis and trichuris vulpis were detected in 41.1 per cent (74/180) and 13.9 per cent (25/180) respectively. other helminth parasites found taenia ovis 35 per cent (63/180) taenia hydatigena 67.8 per cent (122/180), echinococcus granulosus 0.006 per cent (1/180) and dipylidium caninum 97.8 per cent (176/180). | 1979 | 452351 |
| toxocara canis. | toxocara canis, commonly known as the dog ascrid, is a frequent parasite of the domestic dog. if the eggs of an adult worm are accidentally ingested by a human host, usually a child, a larval form of the worm develops that can survive for a limited period in various human tissues. the retina is one of these tissues and upon the death of this organism a granulomatous reaction occurs and a fibrotic mass is formed in the retina. this unusual ophthalmoscopic appearance is demonstrated by the present ... | 1979 | 458104 |
| epidemiological characteristics and clinical findings in patients with serologically proven toxocariasis. | the enzyme-linked immunosorbent assay (elisa) using toxocara canis larva-specific antigens was used to confirm a presumptive clinical diagnosis of visceral larva migrans in patients whose serum specimens were submitted to the center for disease control. the clinical and epidemiological characteristics of patients with diagnostic elisa titres (greater than or equal to log2 5) were compared with patients who had less or no detectable antibody. the typical patient with serologically confirmed toxoc ... | 1979 | 473320 |
| effect of fenbendazole on toxocara canis larvae in tissues of infected dogs. | the effect of fenbendazole therapy was studied in six dogs fed 10,000 embryonated toxocara canis eggs. at 47 days after they were fed t canis, four dogs were given fenbendazole in two divided doses totaling 50 mg/kg of body weight each day for 14 days. two infected dogs were not given fenbendazole. all dogs were necropsied at the end of treatment and the foci were counted in the lungs; their skeletal muscles were digested in 1% trypsin for the recovery of larvae. the t canis larvae were not reco ... | 1979 | 475114 |
| the action of benzimidazoles on the larval stage of toxocara canis in the mouse. | | 1979 | 496464 |
| immunopathology of toxocara canis and ascaris suum infections of the eye: the role of the eosinophil. | intravitreal infection of guinea pigs with second-stage larvae of toxocara canis and second- and fourth-stage larvae of ascaris suum induced intraocular ige antibodies and a dense eosinophil infiltration in the anterior chamber and throughout the uveal tract. the eosinophil infiltrate began within 1 day after infection and persisted for as long as 51 days. by day 12 after intravitreal infection, the injected ascarid larvae were surrounded by granulomas which consisted almost entirely of eosinoph ... | 1979 | 511459 |
| [pathomorphologic changes in chicks infected with toxocara canis]. | | 1979 | 516398 |
| use of fenbendazole suspension (10%) against experimental infections of toxocara canis and ancylostoma caninum in beagle pups. | eleven nematode-free beagle pups were inoculated with ancylostoma caninum and toxocara canis; infection became patent 13 and 35 days later, respectively. eight pups were treated with fenbendazole oral suspension (10%) at a dosage of 50 mg/kg of body weight/day for 3 days. the remaining three animals were unmedicated controls. the drug was effective in reducing both ascarid and hookworm burdens, and there was marked improvement in the clinical condition of treated pups as compared with unmedicate ... | 1979 | 517828 |
| artificial hatching and culture of toxocara canis second stage larvae. | | 1979 | 541764 |
| spontaneous lesions detected in the beagles used in toxicity studies. | four hundred and twenty beagles 1 to 4 years of age were examined for spontaneous pathological changes. in the liver were seen fine granular gallstones (87.5%), granulomas (59.9%), intranuclear hyaline inclusions (52.6%), lipofuscin deposition (50%) and eosinophilic inclusions (3.7%) in the cytoplasm of hepatocytes and parenchymal necrosis at the base of the ligaments (7.3%). intranuclear hyaline inclusions and lipofuscin deposition were more frequently seen in dogs after being subjected to test ... | 1977 | 560313 |
| toxocara infection in animal hospital employees. | the recent development of a sensitive and specific test (enzyme-linked immunosorbent assay) for toxocara canis infection has made it possible to study the epidemiology of this parasite in man. antibody to toxocara was measured in veterinarians, kennel workers, nurses, laboratory technicians, and clerical personnel in an animal hospital (animal medical center, new york, ny) in order to determine the risk of infection in persons with varying degrees of occupational and home exposure to pet dogs. a ... | 1977 | 563680 |
| gastro-intestinal helminths of domestic dogs in the republic of south africa. | of the gastro-intestinal helminths found in 1 063 dogs from different parts of the country, dipylidium caninum, the most prevalent cestode, occurred in 19,7% of the animals. echinococcus granulosus was present in 10 dogs, 8 of which were from urban areas, and taenia hydatigena in 69 dogs. taemia multiceps was recovered from dogs only in the cape province and the orange free state. toxocara canis was present in 81 of the necropsies carried out on 253 dogs from the pretoria municipal area, while a ... | 1979 | 575920 |
| toxocariasis. | human infection with the larvae of the dog roundworm, toxocara canis, occurs in australia, especially in children, and though usually not serious, it can cause considerable damage if the larvae get into such organs as the eye. | 1977 | 603447 |
| atypical ocular toxocariasis. | the case presented emphasizes that toxocara canis can involve the anterior segment of the eye as an isolated disease process. most cases of ocular toxocara canis are not associated with the other features of the visceral larva migrans syndrome but certainly represents a spectrum of the same parasitic disease. at present, an eosinophil count and isohemagglutinin titers against a and b blood groups appear the easiest hematologic studies to perform and are fairly reliable indicators of active toxoc ... | 1977 | 604441 |
| a new approach to the control of toxocara canis and other parasitic ova on concrete-floored kennel runs. | | 1977 | 608084 |
| incidence of toxocara canis infection in stray dogs in miraj area. | | 1977 | 614252 |
| anthelmintic efficacy of thenium closylate-piperazine phosphate combination tablets against toxocara canis in pups and young dogs. | thenium closylate-piperazine phosphate combination tablets, tablets containing either thenium or piperazine, and control tablets (excipients only) were administered in 2 doses 5 to 7.5 hours apart to weaned pups and young dogs, in critical controlled trials to test efficacy against naturally acquired infections of toxocara canis. in the 1st trial, the combination tablets produced a mean clearance of 94% from 18 pups. tablets containing thenium alone showed a mean clearance of 9% from 25 pups, an ... | 1978 | 629460 |
| survey of toxocara canis infection rate in impounded dogs in los angeles county. | | 1978 | 640937 |
| prevalence of toxocara spp. and other parasites in dogs and cats in halifax, nova scotia. | several cases of visceral larva migrans syndrome in children led to an investigation of the ova of toxocara spp. and other species in stool specimens from stray dogs and cats in halifax, nova scotia. fecal samples from 474 stray dogs and 299 stray cats were examined. ova of toxocara canis or cati were present in stools from 26.6% of the dogs and 25.1% of the cats. in dogs the prevalence of toxocara canis was noticeably greater in puppies (56.1%) than in mature animals (11.9%). | 1978 | 647456 |
| homologous passive cutaneous anaphylactic reactions to toxocara canis in mice. | | 1978 | 675789 |
| parasites of red foxes in new brunswick and nova scotia. | sixty-one red foxes from new brunswick and nova scotia were examined for helminths. alaria americana, a. arisaemoides, a. mustelae, cryptocotyle lingua, echinostoma revolution and metorchis conjunctus, capillaria aerophila, crenosoma vulpis, toxocara canis, uncinaria stenocephala and taenia crassiceps were found. approximately 67% of the foxes examined were clinically affected with sarcoptes scabiei mange. | 1978 | 691132 |
| gastrointestinal helminths in dogs from a humane shelter in indiana. | between january 1975 and august 1976, the alimentary tracts of 104 euthanatized dogs from a humane shelter in tippecanoe county, indiana, were examined to determine the prevalence of gastrointestinal helminths. the survey was restricted to dogs greater than 1 year old. their average age was estimated at approximately 2 years. parasitism was detected in 86.5% of the dogs examined. ancylostoma caninum was found most often (58.7%), followed by trichuris vulpis (51.9%), taenia sp (31.7%), toxocara c ... | 1978 | 721684 |
| patent toxocara canis infection in ascarid-naive dogs. | the effect of feeding different numbers of toxocara canis eggs on patent intestinal infections was studied in 45 ascarid-naive 62--64-day-old pups and 6 adult dogs. twenty-four of 25 pups fed 10 to 1,000 eggs developed patent intestinal infections, whereas none of the 20 pups fed 10,000 eggs developed patent intestinal infection. three of 6 presumably ascarid-naive dogs, 7, 10, and 52 months old fed 100 eggs each, developed intestinal infections. | 1978 | 739294 |
| [3 cases of inflammatory granuloma caused by toxocara canis]. | | 1978 | 747875 |
| investigation of intravital diagnosis of toxocara canis larva migrans in experimentally infected mice. | | 1978 | 752406 |
| examination of soil for toxocara canis eggs in different governorates of egypt. | | 1978 | 752711 |
| [research on intestinal parasitic diseases in dogs of the city of rome]. | a survey on the diffusion of intestinal parasites of dogs in the town of rome. the results of a survey on the diffusion of cestodes and nematodes in a hundred dogs in rome are reported. the dogs were subjected to fecal examinations --- using both the flottation method and the mcmaster method -- and to the post-mortem examination of the intestine. at post-mortem examination 25 dogs were found parasitized by one or more species of nematodes, 19 by one or more species of cestodes and 12 both by ces ... | 1977 | 754133 |
| naturally infected dog droppings from public parks and playgrounds as a possible source of infections with salmonellae and helminths. | in two periods (spring/summer and autumn/winter) investigations for salmonellae and helminths were made with 300 naturally infected dog droppings each. in the first period 10.33% of the collected fecal samples had been infected with salmonellae of 10 different serovars. eggs of taxascaris leonina were found in 3.33%, eggs of toxocara canis in 4.33%, taeniid eggs in 1.67% and ancylostomatides in 3.33% of examined droppings. the investigations in the autumn/winter period showed 9% fecal samples in ... | 1978 | 756158 |
| [galactogenic and prenatal toxocara canis infections in dogs (beagle). (brief communication)]. | | 1976 | 786582 |
| [comparative study of the antigenic structure of toxocara canis (werner, 1782) and ascaris suum (goez, 1782) in immunodiffusion and immunoelectrophoretic reactions]. | | 1975 | 809655 |
| prevalence of sarcocystis infection and other intestinal parasitisms in dogs from a humane shelter in ohio. | fecal specimens from 500 stray dogs in columbus, oh, were examined for evidence of intestinal parasitisms. prevalences (%) of coccidia were: sarcocystis sp, 1.8; isospora canis, 1.8; and isospora ohioensis, 3.6. prevalences (%) of helminths were: toxocara canis, 19.2; toxascaris leonina, 10.2; trichuris sp, 42.2; capillaria sp; 1.0; ancylostoma sp, 60.8; uncinaria sp, 2.4; and taenia sp, 7.4. | 1976 | 815230 |
| toxocariasis and ascariasis: a comparison. i. description of infection, haematological response, serum proteins and skin test with toxocara canis antigen. | | 1976 | 823629 |
| experimental visceral larva migrans in monkeys. i. clinical, hematological, biochemical and gross pathological observations on monkeys inoculated with embryonated eggs of the dog ascarid, toxocara canis. | | 1976 | 827646 |
| ascariasis and toxocariasis. ii. difficulties in the differential serological diagnosis employing a toxocara canis antigen. | | 1976 | 828293 |
| [solitary granuloma in ocular toxocara-canis infection (canine round worm)]. | two cases of toxocara canis infection are reported. they presented a solitary granuloma at the posterior ocular pole. the eyes affected by parasites were practically blind. in the first case the condition was discovered accidentally on a pre-employment examination; in the second case, after a change of doctor - the previous diagnosis was toxoplasmosis. the latter mistake is very common in toxocara infections. our diagnoses were confirmed by lamina's microprecipitation test. for treatment the ant ... | 1977 | 846694 |
| [acute intraocular toxocara canis infection, similar clinical picture of juxtapapillar chorioretinitis (author's transl)]. | a case report is given on acute intraocular toxocara canis infection. a complete clinical development from the beginning of infection until healing without defect is described. therapy was vibramycin (doxycyclin), durenat, prednisolon. | 1977 | 850354 |
| larva-specific antibodies in patients with visceral larva migrans. | seven of 10 patients with visceral larva migrans (vlm) had serum precipitating antibodies specific for larval antigens of toxocara canis as determined by double diffusion in agar. such antibodies were absent in 114 normal adults and 25 patients with collagen disease. precipitation of ascarid components by c-reactive protein resulted in false-positive reactions, but this precipitation was readily prevented by appropriate absorption of sera before testing. a more sensitive assay, the enzyme-linked ... | 1977 | 853247 |
| a survey of patent nematode infestations in dogs. | a survey of faecal samples taken from 1000 suburban dogs revealed an infestation of 7-2 per cent toxocara canis, 2-7 per cent toxascaris leonina, 1-3 per cent trichuris vulpis and 1-3 per cent uncinaria stenocephala. the faecal material examined was obtained per rectum from well cared-for pet dogs resident in an area of north-west suburban london. the age of the dogs examined, both male and female, ranged from three weeks to 18 years. the clinical picture of the dogs affected by ascariasis and i ... | 1977 | 860384 |
| toxocara canis and the disposal of faeces. | | 1977 | 860392 |
| toxocara canis. | | 1977 | 878238 |
| the comparison of counterimmunoelectrophoresis with indirect haemagglutination test for detection of antibodies in experimentally infected guinea pigs with toxocara canis. | the humoral response of guinea pigs infected with doses of 500, 1000, and 1500 infective toxocara canis ova were measured by counterimmunoelectrophoresis and indirect haemmagglutination tests one to five weeks after infection. the antigens used in these measurements were prepared from adult t. canis. counterimmunoelectrophoresis showed lower titres than haemagglutination method, but it was performed rapidly and with ease. the possible use of these techniques for immunodiagnosis of human visceral ... | 1977 | 886181 |
| transplacental migration of toxocara canis larvae in experimentally infected mice. | in experimentally infected, nonpregnant mice the larvae of toxocara canis were not found in the uterus at any time. in mice infected at 1 week, but not at 2 weeks, before gestation, larvae were found in the uterus but not in either the placenta or fetus. in mice infected during pregnancy, larvae were found in the uterus and placenta from the 9th day and in the fetus from the 11th day of pregnancy, more abundantly when infected at the middle than at the earlier stages. examination of microsection ... | 1976 | 932920 |
| toxocara canis: an estimation of the incidence of infection in puppies in an industrial town. | | 1976 | 936442 |
| [worm-diseases]. | intestinal parasites are common among labourers from foreign countries and in immigrants. some worm-infections like ascaridiasis or enterobiasis occur in children quite often even in the cold climates. in cases of ascaridiasis only a heavy infection causes clinical symptoms. the diagnosis is made through the detection of eggs in the stools, as all the other worm-infections are diagnosed from the stool-test. piperazine-derivatives are highly effective against ascaris; another useful drug is pyran ... | 1976 | 955553 |
| effect of inoculum size and length of infection on the distribution of toxocara canis larvae in the mouse. | the effect of inoculum size and time on the distribution of toxocara canis larvae in the mouse was investigated by recovering larvae from various body regions 7, 14, 28, and 56 days after administration of either 200, 600 or 1,000 infective eggs to groups of ten male mice. an analysis of variance of larval recoveries from the carcass, liver, brain and cardiopulmonary system suggests that inoculum size was a significant factor determining the proportional recovery for each of these sites. length ... | 1976 | 961975 |
| serological and haematological investigations in the course of experimental toxocara canis infections in laboratory mice. | | 1976 | 963605 |
| [intraocular solitary granuloma of toxocara canis (author's transl)]. | 5 cases of intraocular toxocara canis solitary granuloma are demonstrated. the coincidence of two different aspects of a disease: pseudocoloboma of the macula (toxoplasmosis) in the right and a toxocara solitary granuloma in the left eye of the same patient (case 5) perhaps will furnish proof possibility of foetal infection (via placenta) by toxocara canis. | 1976 | 979050 |
| helminth parasites of the fox (vulpes vulpes) in new south wales. | a total of 930 foxes (vulpes vulpes) from new south wales were examined for the presence of gastro-intestinal helminth parasites. the cestodes were represented by taenia pisiformis with a prevalence of 15.7%, t. serialis (22.6%), t. taeniaeformis (0.1%), spirometra erinacei (28.7%) and dipylidium caninum (8.3%). no specimens of t. ovis, t. hydatigena or echinococcus granulosus were encountered. toxocara canis was the most prevalent nematode and occurred in 35.2% of foxes. other nematodes encount ... | 1976 | 985241 |
| ascaris suum and toxocara canis: egg extract antigens in guinea pigs and the macrophage migration inhibition test. | | 1976 | 987922 |
| multiple infection with toxocara canis. influence of antihistamines and corticosteroids on the histopathological response. | the histopathology of the tissues of mice infected with ten doses of 100 embryonated eggs of toxocara canis and the influence of antihistamines and corticosteroids on these findings is described. the main lesions were confined to the liver and lungs. in infected but untreated control mice hepatic lesions consisted of periportal infiltrates, widespread foci of liver cell necrosis and polymorphonuclear and mononuclear accumulation and a few fibrotic granulomata. treatment with antihistamines did n ... | 1976 | 999357 |
| [prevalence of parasitic diseases by toxocara canis in dogs, and the finding of eggs of toxocara species in the soil of public places in the urban area of londrina, state of parana, brazil]. | | 1976 | 1019565 |
| incidence of toxocara canis and toxocara cati infections among stray dogs and cats in cairo and giza governorates, a.r.e. | | 1976 | 1025236 |
| toxocara canis as a cause of blindness in egyptian children. | | 1976 | 1025240 |
| studies on the infection with the toxocara canis the dog ascarid among egyptians in dakahleia governorate. | | 1976 | 1025250 |
| uredofos: anthelmintic activity against nematodes and cestodes in dogs with naturally occurring infections. | a new broad-spectrum anthelmintic, uredofos, was tested in 146 dogs by single and multiple oral dosing. single doses of 100 and 50 (but not 25) mg/kg were totally effective in removing dipylidium caninum and taenia spp from 46 dogs with infections of tapeworms. among groups of 15 to 20 dogs, the average percentage efficacies against toxocara canis for single soese of 100, 50, and 25 mg/kg were 98, 96, and 81%, respectively. the average percentage of efficacies against hookworm (ancylostoma canin ... | 1976 | 1033721 |
| hepatic and peritoneal invasion by adult ascarids (toxocara canis) in a dog. | | 1975 | 1041525 |
| prevalence of toxocara canis and toxascaris leonina ova in dog faeces deposited on the streets of leeds. | | 1976 | 1067361 |
| [retinal pseudotumor caused by toxocara canis]. | | 1975 | 1110567 |
| experimentally induced cerebrospinal nematodiasis in rabbits (oryctolagus cuniculus). | to determine if the rabbit can act as an intermediate host for ascarids from certain carnivorous animals (skunks, pigs, dogs), 12 rabbits were infected with ascaris columnaris, ascaris suum, or toxocara canis. clinical signs, microscopic lesions, and morphologic features of ascarids with naturally occurring and experimentally induced a columnaris infections were identical. of the 3 induced parasitic infections, a columnaris caused the most severe lesions in the central nervous system (cns). it a ... | 1975 | 1115433 |
| [tissular reactions in experimental infection of mice by toxocara canis]. | | 1975 | 1124327 |
| dogs and intestinal parasites: a public health problem. | the stools of 239 stray dogs were examined for intestinal parasites. of the helminths found, toxocara canis (43.5%), tapeworms (25.5%), ascaris species (21.3%) and hookworms (12.5%) were the commonest. of the protozoans found, isospora species and entamoeba coli were the most prevalent. an unusual feature of the present study was the finding of ascaris species. the importance of the high prevalence of intestinal parasites in dogs, the close contact of humans with dogs' excreta and the possible r ... | 1975 | 1125888 |
| specificity and sensitivity of skin test reactions to extracts of toxocara canis and ascaris suum. i. skin tests done on infected guinea pigs. | the specificity and sensitivity of adult and larval somatic antigens, and perienteric fluid of toxocara canis and ascaris suum were investigated by using intradermal skin tests in guinea pigs. these animals were infected with low doses (0.01, 0.1 or 1.0 egg/g) of these helminths. toxocara larval antigen (tl) induced larger reactions in toxocara-infected animals than did the other antigens, suggesting a superior sensitivity for this antigen. in addition, ascaris perienteric fluid (ap) provoked sk ... | 1975 | 1155689 |
| in vitro maintenance of toxocara canis larvae and a simple method for the production of toxocara es antigen for use in serodiagnostic tests for visceral larva migrans. | | 1975 | 1165568 |
| [comparative study of the activity and specificity of antigens of toxocara canis and ascaris suum in the indirect hemagglutination reaction]. | | 1975 | 1177834 |
| scanning electron microscopy of the eggs of ascaris lumbricoides, a. suum, toxocara canis, and t. mystax. | eggs of ascaris lumbricoides, a. suum, toxocara canis, and t. mystax were examined by scanning electron microscopy (sem). all species under study exhibited pronounced surface ridges. the ridges formed distinctive patterns in t. canis and t. mystax. in the ascaris species, the ridges are similar except that they are more pronounced in the eggs of a. suum. operculumlike structures were observed only in ascaris. correlation of data from sem with previously reported transmission electron microscopy ... | 1975 | 1185420 |
| [case report on a toxocara-canis infection of the human eye (solitary granuloma) (author's transl)]. | description of one case of an intraocular toxocara-canis infection. it deals with a so-called solitary granuloma at the posterior pole of the eye. an infection with this parasit of world-wide distribution is probably more frequently than commonly supposed. the prognosis of the disease is unfavourable in most cases. the diagnoses of a larva migrans visceralis infection is possible by lamina's microprecipitation-test on the living larva. it is an immune-biological and species specific test. the tr ... | 1975 | 1202260 |
| toxocara canis and other nematodes transmitted from dogs to man. | | 1975 | 1212601 |
| [experimental infection of chickens with the larva of toxocara canis and ascaris suum]. | | 1975 | 1216505 |
| contamination of soil in two city parks with canine nematode ova including toxocara canis: a preliminary study. | | 1975 | 1237238 |
| scanning electron microscopy of toxocara canis eggs. | | 1975 | 1239072 |
| an investigation of helminth parasites in well-cared for dogs in accra. | a survey of a relative prevalence of helminth parasites in pet dogs has been conducted in the accra metropolitan area. carcass examination revealed a high incidence of ancylostoma caninum (58%), toxocara canis (40%), dipylidium caninum (24%), spirocerca lupi (18%) and a low 2% of taenia pisiformis. stool examination revealed hookworm ova in approximately 39% stools, ascarid ova in 4%, tapeworm in 1.3% and spirocerca in 0.24; a low incidence of strongloides (0.03) and trichurid ova (0.1%) were al ... | 1975 | 1241960 |
| two cases of disseminated toxocariasis in compromised hosts successfully treated with mebendazole. | two cases of disseminated (hepatosplenic, pulmonary and in 1 case also cerebral) toxocariasis in compromised hosts-1 with malignancy (mycosis fungoides) and 1 on chronic corticosteroid treatment due to autoimmune disease--are reported. besides fungi, also other unusual pathogens (of parasitic origin), especially in cancer, shall be considered. | 1992 | 1286579 |
| visceral larva migrans masquerading as liver secondaries. | | 1992 | 1287102 |
| covert toxocariasis--a cause of recurrent abdominal pain in childhood. | toxocariasis, usually caused by toxocara canis, is a zoonosis acquired by ingestion of worms which inhabit the gut of young canines. domestic pets, such as dogs, become infected from soil in public parks and playgrounds which are often heavily contaminated. although toxocariasis is often regarded as having two principal, though uncommon, manifestations--visceral larva migrans (vlm) and ocular toxocariasis (ot)--recent studies have suggested otherwise. a third, more common, condition, termed 'cov ... | 1992 | 1290741 |
| the use of 35s-labelled toxocara canis to determine larval numbers in tissues. | the potential of using 35s-labelled larvae to determine the number of second-stage toxocara canis larvae present in the tissues of infected animals was assessed. infective larvae were labelled by in vitro culture with medium containing 35s-methionine. the amount of radiolabel attached to larvae decayed exponentially with time and had an in vitro mean half life of 3.54 +/- 0.65 days. the 'lost' radiolabel was incorporated into proteins which formed part of the worm's excretory/secretory products. ... | 1992 | 1293195 |
| [detection of intestinal parasites from dogs in tochigi-city in 1979 and 1991]. | to clarify whether sanitary and hygienic conditions surrounding humans and pet animals have improved or not, we examined feces from dogs for intestinal parasites in tochigi in 1979 and 1991. intestinal parasites were detected from 109 of the 262 dogs (41.9%) in 1979 and 86 of the 260 dogs (32.8%) in 1991. among the parasites. ancylostoma caninum, tirchuris vulpis and toxocara canis were most commonly detected, and their detection rates were higher in 1979. on the contrary, dipylidium caninum, st ... | 1992 | 1293225 |
| nematocidal activity of long alkyl chain amides, amines, and their derivatives on dog roundworm larvae. | the nematocidal activity of amides and amines having a long alkyl chain against the second-stage larva of dog roundworm, toxocara canis, was examined. long chain acyl amides with smaller substituents on the nitrogen showed stronger activity and the activity of cyclic amine amides was stronger than that of acyclic ones. in a series of homologous amides, the activity was dependent on the alkyl chain length: it reached a maximum at an optimal chain length and decreased in both shorter and longer ho ... | 1992 | 1294326 |
| [clinical course of symptomatic toxocariasis in a 10-year-old boy]. | a case is described of symptomatic toxocariasis in a boy, with massive invasion of the parasites and strong response of the organism. the course of the disease was very serious. | 1992 | 1295245 |
| standardization of dot-elisa for the serological diagnosis of toxocariasis and comparison of the assay with elisa. | the dot-enzyme-linked immunosorbent assay (dot-elisa) was standardized using somatic (s) and excretory-secretory (es) antigens of toxocara-canis for the detection of specific antibodies in 22 serum samples from children aged 1 to 15 years, with clinical signs of toxocariasis. fourteen serum samples from apparently normal individuals and 28 sera from patients with other pathologies were used as controls. all samples were used before and after absorption with ascaris suum extract. when the results ... | 1992 | 1307410 |