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efficacy of ivermectin in hookworms as examined in ancylostoma caninum infections.single oral doses of ivermectin were given to dogs with moderate or heavy infections of ancylostoma caninum (egg counts ranging from 7,100 to 41,700 eggs/g feces) at 100, 50, 30, or 10 micrograms/kg body weight. each of these dosages was effective in clearing the infection completely, so that numerous worms were passed in the feces on days 1-3, but no worm was recovered from the intestinal tract at necropsy on day 4 after treatment. in contrast, an average of 178 worms per dog was recovered at n ...19892723924
a preliminary study on the use of enzyme-linked immunosorbent assay (elisa) for detection of trichinella spiralis infections in dogs.an enzyme-linked immunosorbent assay (elisa) was developed to detect trichinella spiralis infections in dogs using rabbit anti-canine igg-horseradish peroxidase prepared according to the improved periodate method and an antigen purified from t. spiralis larvae by sephadex g-200 chromatography. sixty-six canine sera were tested for trichinosis by the elisa and it showed a detection rate which was significantly higher than that by trichinoscopy. this antigen of t. spiralis appeared not to cross-re ...19892741302
[the effect of ivermectin on reactivated somatic larva of ancylostoma caninum ercolani 1859 (ancylostomidae) in the pregnant dog].it was evaluated by means of a controlled test to what extent reactivated larvae of ancylostoma caninum were influenced by single or double treatment with ivermectin. the investigations were done with a total of ten experimentally infected bitches. the single treatment of dams two to ten days ante partum with 0.5 mg or 1 mg ivermectin per kg bodyweight reduced the wormburden of their puppies on an average by 96.6% and 98.5%, respectively. the double treatment with 0.5 mg/kg bodyweight ante and p ...19892763759
musca domestica as a carrier of intestinal helminths in calabar, nigeria.a study was undertaken to examine the role of musca domestica as a carrier of intestinal helminths in calabar, nigeria. a total of 5000 house-flies were collected from markets and residential areas and examined for helminthic parasites using centrifugation, dissection and direct smear methods. four helminths were observed with the following frequency of infection on their external surfaces and gastrointestinal tracts respectively: ascaris lumbricoides ova (0.20% and 0.81%), strongyloides stercor ...19892791934
comparison of immune response in swiss albino mice due to single and repeated doses of infective ancylostoma caninum larvae after subcutaneous inoculation.migratory behaviour of ancylostoma caninum larvae and host responses were studied in four groups of swiss albino mice infected subcutaneously with single doses of 1,000, 2,000 and multiple doses of 500 + 500, 500 + 500 + 1,000. after the 1st day most of the larvae found in muscles in all the groups. there is no significant difference in the migratory behaviour and/or the adoptive pattern of larvae in both the singly and multiply infected animals.19892809186
comparative histochemical studies of glycosidase activity in some helminths.comparative histochemical studies of glycosidase activity were carried out in clonorchis sinensis, eurytrema pancreaticum, fasciola hepatica, dipylidium caninum, hymenolepis nana, ascaris suum, toxocara canis, ancylostoma caninum, trichuris vulpis and dirofilaria immitis. the enzymes examined were: n-acetyl-beta-glucosaminidase (ec 3.2.1.30), beta-glucuronidase (ec 3.2.1.31) and beta-galactosidase (ec 3.2.1.23). there were variations in enzyme distribution and intensity among the species and als ...19863084622
cell mediated immunity during experimental ancylostomiasis: a review.cell-mediated immunity is usually recognized only in a very small number of infections caused by helminths. the present review is engaged with some aspects of the cell-mediated immunity in infections caused by ancylostoma caninum. special attention is paid to the role of passive transfer of sensitized cells and serum. the paper is based on a series of own original investigations of the authors.19873323310
efficacy of various anthelmintics against third-stage larvae of ancylostoma caninum in the brain of mice.in an experimental larval infection of ancylostoma caninum in mice, the efficacy of various anthelmintics against the larvae migrated and established in the brain is reported for the first time. albendazole and flubendazole were the most effective drugs. thiabendazole, benacil, phenacizole, oxfendazole and mebendazole showed significant larvicidal activity. tetramisole, levamisole, fenbendazole, sch 18099, pyrantel pamoate, morantel tartrate and oxantel pamoate did not show any significant activ ...19883372978
transmission of ancylostoma caninum and alaria marcianae in coyotes (canis latrans).one of seven female coyotes (canis latrans) captured in webb county, texas during september 1986 and confined and mated in holding facilities at millville, utah whelped the following spring. the maternal female (greater than 5-yr-old) and her five neonates were killed at 22 days postparturition. all were infected with adult ancylostoma caninum and were passing eggs in their feces. also, the neonates and maternal female were infected with immature and adult alaria marcianae, respectively. these f ...19883411716
maternal transmission by alaria marcianae (trematoda) and the concept of amphiparatenesis.the term amphiparatenic host was coined originally for hosts of alaria marcianae that as adults are paratenic hosts, but as juveniles serve as definitive hosts. in this study the concept of amphiparatenesis is placed in a theoretical context, maternal transmission shown to be the basic mechanism, and the concept extended to include toxocara canis, t. cati, t. pteropodis, neoascaris vitulorum, ancylostoma caninum, uncinaria lucasi, various species of strongyloides, pharyngostomoides procyonis, an ...19873572644
helminth parasites of the coyote (canis latrans) in tennessee.from 1980 to 1984, 267 coyotes (canis latrans) from tennessee were examined for helminth parasites. hearts were examined for the presence of dirofilaria immitis, diaphragms for trichinella spiralis, and digestive tracts for other helminths. six species were found including 5 nematodes (d. immitis, physaloptera rara, trichuris vulpis, ancylostoma caninum, and toxascaris leonina) and 1 cestode (taenia pisiformis). univariate and multivariate statistical techniques were used to assess parasite prev ...19873585628
[the effect of fenbendazole on resting somatic larvae of ancylostoma caninum ercolani 1859 (ancylostomidae) in the pregnant bitch]. 19873591107
[effects of various anti-hookworm drugs on the cholinesterase activity of necator americanus, ancylostoma duodenale, ancylostoma caninum and nippostrongylus braziliensis]. 19873621504
parasites of stray dogs in the rabat region, morocco.eighteen parasites were identified from 57 stray dogs from the urban and rural areas of rabat. the prevalence of the species of parasites was: ctenocephalides (c. canis, c. felis) 94.7%, rhipicephalus sanguineus 68.5%, linguatula serrata, babesia canis, isospora canis each 3.5%, toxocara canis 7%, dirofilaria immitis, taenia hydatigena, t. pisiformis each 12.3%, dipetalonema dracunculoides 10.5%, ancylostoma caninum 17.5% echinococcus granulosus 22.8%, toxascaris leonina 33.3%, dipylidium caninu ...19873675044
efficacy of benzimidazoles against larval ancylostoma caninum infection in mice. 19863721357
the response of captive rodents to the migration of ancylostoma caninum larvae.the distribution of the larvae of ancylostoma caninum in tissues of captive wild rodents (rattus rattus) and the leucocytic and behavioural responses of these rodents were studied after experimental oral infection. there was a wide distribution of larvae in tissues with a preponderance of the larvae in the skeletal muscles of the anterior part of the body in older infection. the rats responded by an elevation of total leucocytes and eosinophils in blood, alternation of locomotory activity and be ...19863721358
serum levels of aspartate transaminase, alanine transaminase and worm burden in mice infected with ancylostoma caninum larvae.aspartate transaminase and alanine transaminase levels showed considerable increase during initial (1 to 9 days) period of infection in all the experimental groups of mice and their level reached higher values than in the controls. the increase of enzymes was influenced by the degree of retention of worm load and the immunological damage caused by ancylostoma caninum larvae within the host system.19863721359
the origin and some of the functions of smooth endoplasmic reticulum in ancylostoma caninum sperm cells. 19863744670
[method of the spread of larvae of ancylostoma caninum ercolani 1859 (ancylostomidae) in the definitive host (beagle)]. 19863751391
the prevalence of parasitic helminths in stray dogs in the baghdad area, iraq.the prevalence of parasitic helminths in 20 stray dogs from the area of baghdad was recorded. taenia spp. were found in 12 dogs, dipylidium caninum in ten dogs, toxocara canis in eight dogs, ancylostoma caninum in seven dogs and echinococcus granulosus in five dogs. spirocerca lupi and dirofilaria immitis were found in three dogs, mesocestoides lineatus in two dogs and strongyloides stercoralis in one dog.19863800471
experimental infection of ancylostoma caninum in chickens: immunization through transfer of sensitized bursal cells.an attempt has been made to demonstrate the immune response in chickens to infection by the dog hookworm ancylostoma caninum following transfer of sensitized bursal cells from infected donor chickens. recipients were challenged with a dose of 500 larvae each, 1, 3 and 5 days after cell transfer. the immune response was found to be more pronounced in recipients challenged 5 days after cell transfer than in those challenged 1 or 3 days after transfer and those which received non-sensitized bursal ...19863805714
dose-titration studies of ivermectin against experimental ancylostoma caninum and uncinaria stenocephala infections.dose-titration trials of ivermectin were conducted on pups with dual experimental infections of 4th-stage larvae or adult ancylostoma caninum and uncinaria stenocephala. ivermectin was administered orally or subcutaneously at dosages of 0.006, 0.012, or 0.024 mg/kg of body weight. maximal or near maximal (greater than or equal to 96% to 100%) anthelmintic effect was observed for both stages of development for each hookworm species by either route of administration at a dosage of 0.024 mg/kg. res ...19853839115
studies on the prevalence of gastro-intestinal helminths of dogs in calabar, nigeria.the results of investigational study to determine the prevalence of gastro-intestinal helminths of dogs in calabar, nigeria with particular emphasis on the effects of sex and age of the animals on the occurrence of these endoparasites are presented. of a total of 254 dogs sampled using saturated brime solution floatation method and formalin-ether sedimentation method, 223 (86.97%) were infected. a breakdown of the number of parasitized dogs shows that 180 (70.86%) were positive for ancylostoma c ...19853869127
comparative studies on the infestation of three different breeds of dogs by gastro-intestinal helminths.the findings of an investigation mounted to evaluate and compare the prevalence of parasitic gastro-intestinal helminth ova in three different breeds of dogs in calabar, nigeria are presented. results of the investigation indicate that in alsatians, 25% infestation with strongyloides stercoralis, 25% toxocara canis, 65% ancylostoma caninum were found, in crossbreed between alsatian and mongrel, 15.56% infestation with strongyloides stercoralis, 10.93% toxascaris leonina, 25% toxocara canis, 68.7 ...19853869810
isolation and characterization of a proteolytic enzyme from the adult hookworm ancylostoma caninum.the adult hookworm ancylostoma caninum releases a proteolytic enzyme which is thought to be essential for its adaption to parasitism. the protease was purified from parasite extracts by ion-exchange chromatography followed by gel filtration and hydrophobic interaction chromatography. the purified enzyme exhibited a molecular weight of 37,000 on sodium dodecyl sulfate-polyacrylamide gel electrophoresis and had an nh2-terminal sequence of arg-his-his-gln-pro-lys-val-ala-leu-leu-gly-ala-his-gly-gly ...19853888998
specific antibody responses in dogs experimentally infected with echinococcus granulosus.six dogs reared helminth-free were divided into 2 groups. four dogs were infected per os with 200,000 protoscoleces each of echinococcus granulosus and 2 were kept as uninfected controls. all the dogs were kept together until 32 days after infection, when 1 infected dog was killed, its intestine removed and the contents examined to confirm that the infection with e. granulosus had been successful. the remaining 3 infected dogs were transferred to high security housing and their feces inspected d ...19863953947
prenatal and lactational transmission of toxocara canis and ancylostoma caninum: experimental infection of the bitch before pregnancy. 19853980144
chemotactic attraction of infective hookworm larvae of ancylostoma caninum by a dog serum factor.infective hookworm larvae of ancylostoma caninum showed chemotaxis on agar plates in a dog serum gradient. this chemotactic behaviour remain unaltered using an ultrafiltrated serum fraction with a molecular weight less than 500. gelfiltration of this ultrafiltrated fraction revealed a factor with a molecular weight of 480 causing chemotaxis. the chemotactic activity of the factor was destroyed after a pronase treatment. we conclude that the factor could be a polypeptide.19854024709
anthelmintic efficacy of febantel combined with praziquantel in dogs.ninety-four dogs were randomly assigned to 1 of 6 groups (5 treated and 1 untreated control) for evaluation of anthelmintic efficacy. three anthelmintic formulations were studied: a febantel paste, a praziquantel paste, and a combination paste containing both active ingredients. treated dogs were dosed once daily for 3 days. the minimal effective dosages in combination were established as 10 mg of febantel and 1 mg of praziquantel/kg of body weight. at those dosages for the combination, 99.5% to ...19854030460
temperature-induced separation of larvae of uncinaria stenocephala from a mixed fecal culture containing ancylostoma caninum. 19854040166
experimental infection of pups with ancylostoma caninum-infected mouse tissues.migration and distribution of ancylostoma caninum larvae in the tissues of mice orally infected with 1000 larvae, and establishment of patent infection from the mice to the definitive host, were studied. larval yield from different organs of mice, after digestion with artificial gastric juice, indicated that the highest recovery was at 4 h post-infection (62.8%), and thereafter a slight decline occurred up until 30 days post-infection (51.5%). migration of larvae to the lungs occurred within 4 h ...19854049727
prenatal and lactational transmission of toxocara canis and ancylostoma caninum: experimental infection of the bitch at midpregnancy and at parturition. 19854066142
experimental infection of pups with ancylostoma caninum larvae from an abnormal host, the chicken.the migration and distribution of ancylostoma caninum larvae in the tissues of chickens, infected orally with 1,000 larvae, were studied. larval yield at necropsy from different organs after digestion with artificial gastric juice revealed a 62.9% recovery four hours after inoculation, followed by a sharp decline to 5.4% at 72 hours. larvae were found in the heart within four hours, the lungs within eight hours and the liver within 12 to 18 hours but no larvae were recovered from the spleen, kid ...19854093588
the efficacy of some newer broad spectrum anthelmintics against third-stage larvae of ancylostoma caninum in the mouse.the efficacy of eight anthelmintics against ancylostoma caninum larvae in the skeletal muscles of mice was evaluated. levamisole (5 x 40 mg/kg), thiabendazole (5 x 400 mg/kg), oxfendazole (5 x 100 mg/kg), albendazole (5 x 100 mg/kg), flubendazole (5 x 200 mg/kg), benacil (5 x 200 mg/kg) and phenacizole (5 x 200 mg/kg) showed marked larvicidal activity (98 to 99%). sch 18099 did not show larvicidal activity even at 5 x 400 mg/kg.19854093589
differences in lipid granulation as the basis for a morphologic differentiation between third-stage larvae of uncinaria stenocephala and ancylostoma caninum.differences in the distribution of lipid granules between unstained third-stage larvae of uncinaria stenocephala and ancylostoma caninum cultured at 15 c was found to be an effective means for differentiating these 2 species of canine hookworms. in contrast, larvae cultured at 22 c were less easily differentiated based on the distribution of lipid granules. after culturing at 15 c, third-stage larvae of u. stenocephala were motile and exhibited 32 well-demarcated intestinal cells which contained ...19854093808
ancylostoma caninum: analysis of antigens of the canine hookworm. 19704100984
intestinal trauma resulting from feeding activities of ancylostoma caninum. 19744139902
biochemistry of the dog hookworm. 3. oxidative phosphorylation. 19704315908
scanning electron microscopy of hookworms. 1. morphological differences between infective stages of ancylostoma caninum (ercolani, 1859) and ancylostoma tubaeforme (zeder, 1800). 19744458075
in vitro action of normal and immune sera on the larval and adult stages of ancylostoma caninum. 19724676816
protective immunity against ancylostoma caninum in dogs vaccinated with free-living soil nematodes. 19734683965
[studies on the possibility of prenatal and galactogenic infections with ancylostoma caninum ercolani 1859 (ancylostomidae) in the dog]. 19734693427
efficacy of a hookworm (ancylostoma caninum) vaccine for dogs. 19734721752
early stage of infection of ancylostoma caninum in dogs and mice. 19734752378
attachment and feeding behavior of ancylostoma caninum. 19704908335
ancylostoma caninum: intestinal pigment granules. 19704911146
fine structure of the intestine of the nematodes, ancylostoma caninum and phocanema decipiens. 19684915918
studies in ancylostoma caninum infection in dogs. i. absorbtion from the small intestine of amino-acids, carbohydrates and fat. 19725021561
experimental infection of cyclops with the larvae of ancylostoma caninum. 19725035192
the effects of ancylostoma caninum on the liver and lung of mice as shown by histochemical techniques. 19725035194
studies in ancylostoma caninum infection in dogs. ii. anatomical changes in the gastrointestinal tract. 19725038245
histochemical studies of the skin and intestine of dogs infected with ancylostoma caninum larvae. 19725038421
ocular nematodiasis: results with ancylostoma caninum in mice. 19725042072
helminths of cats from the midwest with a report of ancylostoma caninum in this host. 19715090968
anticoagulant activity of dog hookworm. 19715102508
effect of dichlorvos on eggs and larvae of ancylostoma caninum. 19715104315
inhibition of development of ancylostoma caninum with tetramisole. 19715107113
in vitro action of tetramisole on the development of ancylostoma caninum. 19715143160
experimental ancylostoma caninum infection in dogs. 19715144155
ancylostoma caninum: pharyngeal activity in vitro. 19715145806
some observations on experimental infection of cyclops with ancylostoma caninum larvae. 19715159146
blood loss during hookworm infection determined by erythrocyte labeling with radioactive 51-chromium. i. infection of dogs with normal and with x-irradiated ancylostoma caninum. 19665297075
nature of an anticoagulant from the cephalic glands of ancylostoma caninum. 19665332833
ancylostoma caninum burden in relationship to erythrocyte loss in dogs. 19695361272
effect of ingested garlic on necator americanus and ancylostoma caninum. 19695389769
biochemistry of the dog hookworm. ii. nature and origin of the excreted fatty acids. 19705419452
influence of fertilization on ovogenesis in ancylostoma caninum. 19705461090
infectivity of ancylostoma caninum larvae from canine milk. 19705469538
the efficacy of various anthelmintics against the parasitic larval stages of ancylostoma caninum in mastomys natalensis. 19705485196
studies on ancylostoma caninum infection in mice following percutaneous and intraperitoneal routes of infection. 19705501444
studies on the early stage of infection of ancylostoma caninum in mice. 19705501445
ancylostoma caninum: uptake of 14c-glucose in vitro. 19705504481
control of ancylostoma caninum in the dog with cthiabendazole. 19705505148
prenatal infections of ancylostoma caninum among pups from bitches naturally infected. 19705529772
thiabendazole as a prophylactic against ancylostoma caninum. 19715540972
experimental studies on ancylostomiasis in cats. 3. egg culture of ancylostoma tubaeforme zeder, 1800 and ancylostoma caninum ercolani, 1859. 19675624718
[botryomycoma superimposed on the erratic skin lesions of ancylostomiasis larbish (ancylostoma caninum) limited parasitic disease]. 19685677905
[studies of the pathway of infection of ancylostoma caninum]. 19685702067
transmammary passage of ancylostoma caninum larvae in dogs. 19685761146
ancylostoma caninum: food reserves and changes in chemical composition with age in third stage larvae. 19695774099
ancylostoma caninum: fine structure of intestinal epithelium. 19695797442
further studies on the ultrastructure and histochemistry of the intestinal wall of ancylostoma caninum. 19655841336
metabolism of hookworms. 3. the effects of normal sera on the carbohydrate metabolism of adult female ancylostoma caninum. 19655843288
influence of age and sex on susceptibility of dogs to primary infection with ancylostoma caninum. 19655857264
persistence of immunity following double vaccination of pups with x-irradiated ancylostoma caninum larvae. 19655857265
effect of age of the dog on immunogenic efficiency of double vaccination with x-irradiated ancylostoma caninum larvae. 19655882555
biochemistry of the dog hookworm. i. oxidative metabolism. 19655891649
clinical studies on serum ionic calcium in domestic animals. v. serum ionic calcium in anemic dogs infected with ancylostoma caninum. 19635896546
clinical studies on serum ionic calcium in domestic animals. ix. experimental infection of rats on a severely low calcium diet with ancylostoma caninum. 19655896594
the blood sucking activities of hookworms. with special reference to the volume of blood withdrawn by ancylostoma caninum. 19665907031
anthelmintic activity of thenium p-chlorobenzene sulfonate against various stages of ancylostoma caninum in young dogs. 19665913041
preparation of a pure culture of ancylostoma braziliense from a mixed infection of this species and ancylostoma caninum, by single passage in kittens. 19665927216
comparison of the immunogenic efficiencies of normal and x-irradiated ancylostoma caninum larvae in dogs. 19665942529
influence of male and female ancylostoma caninum on each other's distribution in the intestine of the dog. 19665960787
anthelmintic activity of toluene and dichlorophen against various stages of ancylostoma caninum in young dogs. 19665971618
anthelmintic activity of tetrachloroethylene against various stages of ancylostoma caninum in young dogs. 19666007730
experimental studies on ancylostomiasis in cats. i. ancylostoma caninum ercolani, 1859 and a. tubaeforme zeder, 1800 found in cats in japan. 19666009999
fine structure of the striated border of the intestinal cells of ancylostoma caninum. 19676017242
transfer of immunity to ancylostoma caninum infection in pups by serum and lymphoid cells. 19676020124
immunity of dogs to ancylostoma braziliense infection following vaccination with x-irradiated ancylostoma caninum larvae. 19676068075
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