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[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
scanning electron microscopy of hookworms. 1. morphological differences between infective stages of ancylostoma caninum (ercolani, 1859) and ancylostoma tubaeforme (zeder, 1800). 19744458075
intestinal trauma resulting from feeding activities of ancylostoma caninum. 19744139902
serum protein pattern of mice during infection with single and repeated doses of ancylostoma caninum larvae.electrophoretic pattern of serum protein in mice during ancylostoma caninum larval infection with various single and repeated doses were observed to ascertain whether these changes take place according to their increase in dose levels. comparison between single and repeatedly infected groups were also made statistically.197551800
survival of ancylostoma caninum on bluegrass pasture.the survival of infective larvae of ancylostoma caninum on outdoor grass plots was studied in 40 experiments over 1 year. weather data were collected over the period. mean larval survival from august to early november was 24 days (range 1 to 49), from december through february was 0 days, and from march to mid-august was 6.6 days (range 0 to 21). moderate to high temperatures and substantial rainfall favored larval survival; low temperatures and rainfall favored larval destruction.19751138040
estimation of blood loss caused by ancylostoma caninum in dogs using 51-cr-labelled red cells. 19751145238
experimental infection of ancylostoma caninum in mice. ii. migration and distribution of larvae in tissues after oral infection. 19751184945
survival of ancylostoma caninum on bare ground, pea gravel, and concrete.studies were done to determine the survival of infective ancylostoma caninum 3rd-stage larvae on 3 ground covers commonly used in dog run construction: bare ground, pea gravel, and concrete. changes in numbers of recovered larvae were compared to meterologic data and the most significant weather variables were determined. larvae were recovered 1 to 7 days on bare ground. larvae survived longer in the fecal mass (mean of 3 days) than on the bare ground (mean of 2 days). rain was the most signific ...19751200451
[pathology of experimental ancylostomiasis in dogs (ancylostoma caninum) studied with radioisotopes. i. blood volume (risa l 131). comparative study with human ancylostomiasis]. 19751235041
[pathology of experimental ancylostomiasis in dogs (ancylostoma caninum) studied by radioisotopes. 3. loss of intestinal proteins (pvp i 131). comparative study with human ancylostomiasis]. 19751235043
[effect of innoculation of dogs with ancylostoma caninum larvae irradiated with co 60]. 19751235044
intestinal helminths in dogs and cats on the antillian islands aruba, curaçao and bonaire.an investigation into the prevalence, identity and size of population of intestinal helminths in dogs and cats was carried out in the dutch antillian islands, curaçao, bonaire and aruba during april and may 1974. ninety-one dogs and 83 cats were examined. in all, 4,824 helminths were isolated and identified. the following species were isolated from dogs: dipylidium caninum (most frequent), ancylostoma caninum (frequent in curaçao), toxocara, taenia hydatigena and ancylostoma braziliense. species ...19751237955
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 ...19751241960
[chemotherapeutic effects of nitro compounds. 1. nitroanilines].more than 200 nitro compounds, most of them nitroaniline derivatives substituted with one or more radicals having a basic reaction, were prepared and investigated as to their therapeutic activity against bacteria, fungi, protozoa, helminths, viruses and tumors. several mono-nitrobenzenes with a radical having a basic reaction showed weak in-vitro activity against gram-positive bacteria and against crocker's sarcoma 180; they also showed systemic activity against nematodes (aspiculuris tetraptera ...19751242309
intracellular (muscle-fiber) habitat of ancylostoma caninum in some mammalian hosts.the persistence and precise location of ancylostoma caninum larvae in tissues of vertebrate paratenic hosts and the nature of host responses were studied in mouse, cat, and monkey. mice were infected percutaneously and examined at various intervals up to 260 days after exposure. long-persisting larvae were found only in the muscles. histologic sections revealed that within 4 hr after exposure some larvae had migrated through the skin and had entered individual fibers of the underlying muscles. a ...1975809563
anthelmintic activity of diuredosan in dogs experimentally infected with ancylostoma caninum and trichuris vulpis.the efficacy of diuredosan was determined in dogs experimentally infected with ancylostoma caninum and trichuris vulpis. diuredosan at dosages of 25, 50, and 100 mg/kg was 99% effective against a caninum. efficacies against t vulpis were 88, 85, and 94% at dosages of 25, 50, and 100 mg/kg, respectively.1976984564
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 ...1976985241
infectivity of ancylostoma caninum larvae after freezing over liquid nitrogen.third-stage larvae of ancyclostoma caninum were exsheathed either by carbon dioxide or sodium hypochlorite treatment. exsheathment per se reduced the infectivity of third-stage larvae by 45% to 59% without affecting larval motility. both ensheathed and exsheathed larvae were frozen over liquid nitrogen for 90 days, and thawed. frozen ensheathed larvae were all killed; but frozen exsheathed larvae were 40-54% as infective as non-frozen exsheathed larvae, and the addition of 10% dimethyl sulphoxid ...1976985243
changes in hookworm distribution in surinam.during the months may-july, 1974, a follow-up investigation was carried out on hookworm infections in dogs and cats in order to study changes in the hookworm distribution in surinam since 1967. fifty-two cats and 152 dogs were examined for the presence of helminths in the oesophagus, small intestine, coecum and heart. in total 15,942 helminths were isolated; most of these (14,006) were hookworms belonging to the species ancylostoma caninum, a. tubaeforme, a. ceylanicum and a. braziliense. the av ...1976987625
the role of the house fly (musca domestica) in the dissemination of hookworm.eggs and larvae of ancylostoma caninum were recovered from the crop, mid-gut and hind-gut of musca domestica; only larvae were recovered from the vomitus and one dead infective larva was recovered from the faeces on one occasion. all eggs recovered from the gut hatched after incubation for 48 hours. up to 319 eggs and 1485 larvae were recovered from the legs of experimentally contaminated flies. the viability of the eggs and the longevity of the larvae recovered from the gut and external surface ...1976999359
[reactivation of inhibited larvae of ancylostoma caninum. effect of estradiol and progesterone]. 19761015057
prevalence and zoonotic potential of ancylostoma ceylanicum in cats in thailand.ancylostoma ceylanicum and ancylostoma caninum were found in cats from prachin buri, thailand, with infection rates of 92% and 23%, respectively. in this survey, 75% of cats were infected with a. ceylanicum alone, the rest had mixed infections of a. ceylanicum and a. caninum. the worm burden range in 26 cats for a. ceylanicum and a. caninum were 1 to 83 and 1 to 10, respectively. for a. ceylanicum, both males and females were found in the gut from the first part of duodenum to rectum. in the cas ...19761030851
[evaluation of the disinfectant action of metepa on infected larvae of ancylostoma caninum. i. in-vitro studies]. 19761032475
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 ...19761033721
letter: arrested development of larval ancylostoma caninum in the gastro-intestinal tract. 19761065821
experimental infection with ancylostoma caninum larvae in mice. iv. serum protein pattern during primary infection.serum protein of swiss albino mice infected with ancylostoma caninum larvae, were analysed electrophoretically. twenty mice were infected with a dose of 1000 larvae and the alterations in serum protein during an infection period of 30 days were recorded and compared with uninfected controls. the result showed a significant decrease in albumin and gamma globulin with an increase in beta globulin. there were no significant changes in the alpha-1 and alpha-2 globulins. the total globulins increased ...197667139
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 ...1977319991
[localization of adult ancylostoma caninum in the intestines of dogs with experimental ancylostomiasis]. 1977553473
the response to phytohaemagglutinin of peripheral blood lymphocytes from dogs infected with ancylostoma caninum. 1977275673
on the phospholipids of adult ancylostoma caninum.the phospholipid composition of ancylostoma caninum has been examined. phospholipids amounted to 0.9% of the wet weight of the parasite. ethanolamine and choline containing lipids comprised about 76% of the total phospholipids. lysolecithin, sphingomyelin, phosphatidyl inositol and phosphatidyl serine were present in minor amounts. cerebrosides and sulfatides were also identified.1977590444
spinal nematodiasis of the dog associated with ancylostoma caninum. 1977614029
experimental cross-breeding of ancylostoma tubaeforme (zeder, 1800) and ancylostoma caninum (ercolani, 1859).in experimental crosses between a. tubaeform and a caninum the worms failed to produce progeny in dual-strain combinations. even though these two strains did not fail to copulate. egg production was observed only in identical single-strain combinations. this supports the assumption that the two species are genetically separate and valid.1977918711
skin penetration of infective hookworm larvae. iii. comparative studies on the path of migration of the hookworms ancylostoma braziliense, ancylostoma ceylanicum, and ancylostoma caninum.the lateral skin areas of nine hookworm-free puppies were exposed to infective larvae of ancylostoma braziliense, ancylostoma ceylanicum and ancylostoma caninum. serial sections, stained with harris' haematoxylin and eosin, showed that many similarities exist in the migration patterns of the hookworm species used. however, striking differences were observed between ancylostoma braziliense on the one hand and ancylostoma ceylanicum and ancylostoma caninum on the other hand with regard to the spee ...1977919694
[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 ...1977754133
gastrointestinal parasitism of iowa coyotes in relation to age.taenia sp., physaloptera sp., ancylostoma caninum, toxascaris leonina, and/or trichuris vulpis were recovered from gastrointestinal tracts of 141 and 144 (97.9%) coyotes ranging from 1/2 to 8 1/2 years of age. ancylostoma caninum exhibited a significant decline in both prevalence and mean number per coyote with increasing age of the host. taenia sp. appeared with consistently high prevalence in all age classes. physaloptera sp. and t. leonina showed general reductions in prevalence in all age cl ...1978641673
the distribution of ancylostoma caninum larvae in the central nervous system of the mouse infected with single or repeated doses.the distribution of ancylostoma caninum larvae in the various regions of the central nervous system of mice of previously uninfected or reinfected groups was studied. although a dose of 4000 larvae was lethal, the distribution of larvae was not appreciable in the cns. many larvae were recovered from the cerebral hemispheres and cerebellum of infected mice whereas no incidence of eye involvement was observed in any mouse. in the reinfected mice groups there was a much lower recovery than in the p ...1978670667
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 ...1978721684
experimental infection of ancylostoma caninum in mice. iii. distribution of larvae after repeated exposures to infection.different groups of mice were infected with various single or repeated doses of larvae of ancylostoma caninum. considerable loss of larvae occurred in the immunised groups when compared with their counterpart unimmunised groups. larval migration and distribution in the different tissues was less in immunised mice, as most larvae were expelled from the gastrointestinal tract. this resulted in a poor onward larval migration to liver, lungs, brain and muscle regions in immunised groups. the heavily ...1978722039
the efficacy of anthelmintics against third stage larvae of ancylostoma caninum in mastomys natalensis.investigations have been carried out on the multimammate rat (mastomys natalensis), orally infected with 1000 third stage larvae of ancylostoma caninum per animal, to evaluate the larvicidal efficacy of anthelmintics in this paratenic host. the oral or subcutaneous administration of 19 anthelmintics and filaricides revealed good activity for levamisole, cambendazole, and mebendazole against 15-day-old ancylostoma larvae which were located in the muscular tissue. similarly, good results were obta ...1978741857
efficacy of avermectins against ancylostoma caninum in dogs. 1978752053
anthelmintic efficacy of pyrantel pamoate against the roundworm, toxocara canis, and the hookworm, ancylostoma caninum, in dogs. 1978250990
[a case of relapsing cutaneous larva migrans transmitted by a cheetah (acinonyx jubatus)].a case of relapsing "creeping eruption" connected with parasites of the cheetah is reported in the man. the parasitological examination, carried out in two cheetahs liable of this syndrome, has shown two different helmintic species: ancylostoma caninum and ancylostoma tubaeforme.1978575999
[galactogenic transmission of third larvae of ancylostoma caninum ercolani 1859 (ancylostomidae) in paratenic hosts]. 1978569954
[1st finding of the ancylostoma braziliense nematode (gómez de faria, 1910) in canis familiaris in cuba].according to the results obtained by investigators who have been devoted up to date to the study of dog helminthiases in cuba dog ancylostomiasis is produced by ancylostoma caninum. now, ancylostoma braziliense (gómez de faria, 1910) has been found in two dogs from the havana province. the knowledge of the invasion extension as well as of the intensity of infestation should wait for the exhaustive study of the collected material.1978358325
a comparative in vitro study of antibody binding to different stages of the hookworm ancylostoma caninum.the indirect fluorescent antibody technique (ifat) and the indirect immuno peroxidase technique (iipt) have been applied to cryostat sections and intact stages of the hookworm species ancylostoma caninum with sera from infected dogs. especially the role of the body surface (= cuticle (cortex, matrix, basal layer) and hypodermis) in immunity was studied. using cryostat sections and dead intact stages as the antigen, specific antibody binding was demonstrated round the ovum membrane and the cuticl ...1978358640
igg antibody binding to the outer surface of infective larvae of ancylostoma caninum.applying the indirect fluorescent antibody technique to the infective stages of the hookworm ancylostoma caninum, it appeared that they do not show igg antibody binding when serum from dogs infected with a. caninum was used in the test (antiserum). however, inhibiting these stages metabolically with azide or with low temperatures, igg antibody binding to the outer surface was observed. when the inhibitory factors were removed, shedding of fluorescent substances was seen, which were obviously com ...1978369167
experimental infection with ancylostoma caninum larvae in mice. v. serum protein pattern during infection with various doses.serum protein patterns of swiss albino mice during ancylostoma caninum infection with varying dose levels were studied electrophoretically. there was a significant decrease in albumin associated with a corresponding increase in beta globulin in all the infected groups. gamma globulin decreased significantly in all groups except the one infected with a challenge dose of 4000 larvae. maximum changes occurred on day 31, 15, 9, 15 and 6 when mice were infected with 250, 500, 1000, 2000 and 4000 larv ...197885675
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 ...1978418189
parasites of the coyote (canis latrans) in central utah.seventeen coyotes, canis latrans, from central utah were surveyed for parasites. five species of parasites not reported previously from coyotes in utah were detected: filaroides osleri, physaloptera sp., spirocerca sp., ancylostoma caninum, and cediopsylla simplex. in all, 11 genera of parasites were observed.1978418190
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).1979452351
intestinal mast cells during experimental ancylostomiasis.the alterations of mast cell counts induced in the gut of swiss albino mice by infection with ancylostoma caninum larvae have been studied, both in single and multiple infections. it was found that mast cell rise was greater in females than males. in singly infected animals, mast cell increase was influenced by the infective dose of inoculated larvae. in case of repeatedly infected mice, mast cell counts were decreased because of their earlier degranulation.1979458129
avermectins, new family of potent anthelmintic agents: efficacy of the b1a component.when given to sheep as a single oral dose at 0.1 mg/kg, the b(1a) component of the avermectins caused a reduction of >95% in the numbers of haemonchus contortus, ostertagia circumcincta (including inhibited l(4) larvae), trichostrongylus axei, trichostrongylus colubriformis, cooperia oncophora, and oesophagostomum columbianum. when given to cattle as a single oral dose at 0.1 mg/kg, avermectin b(1a) was >95% effective in reducing the numbers of haemonchus placei, ostertagia ostertagi (including ...1979464563
longevity and infectivity of somatic larvae of ancylostoma caninum in guinea and swine. 1979480079
effect of worm burden on female to male ratio and epg in parasitism by ancylostoma caninum. 1979482770
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 ...1979517828
haemagglutination test in mice infected with ancylostoma caninum larvae. 1979541495
experimental infection with ancylostoma caninum larvae in mice. vi. serum protein pattern use due to repeated exposures to infection.three mice groups were infected with various repeated doses and other four groups with single doses of ancylostoma caninum larvae. serum samples collected at various intervals were analysed electrophoretically. the results were compared first with an uninfected control group and then with those of the corresponding non-immunized single-dose-infected groups. remarkably decreased values of albumin, increased beta globulin and increased total globulins with a decreased a/g ratio were observed. ther ...197993128
in vitro cultivation of ancylostoma duodenale and ancylostoma caninum. 1979117988
studies on experimental ancylostomiasis: transfer of acquired immunity to ancylostoma caninum in mice through sensitized thymus and bone marrow cells.an attempt has been made to transfer acquired immunity to ancylostoma caninum infective larvae from infected swiss albino female mice to nonimmune, isologous recipients of same sex, through immunized thymus and bone marrow cells. immunized cells from donors infected with a single high dose of 1000 larvae were found to be more immunocompetent than cells from donors infected with a single, but low dose of 500 larvae.1979385336
pharmacological estimation of histamine in the intestine of mice experimentally infected with single doses of ancylostoma caninum larvae.histamine content of the intestine of young female swiss albino mice experimentally infected per os with low (500) and high (2000) doses of ancylostoma caninum larvae was studied. the histamine level increased in both the experimental groups reaching peak values on the 16th day post infection in animals inoculated with a dose of 500 larvae and on the 30th day post infection in animals inoculated with 2000 larvae; the histamine content was 2.5 times higher in the former and 4 times higher in the ...1979575901
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 ...1979575920
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 ...1979295548
disc electrophoretic studies of hookworms: preliminary comparison of protein fraction in adult necator americanus, ancylostoma duodenale and ancylostoma caninum. 19806780275
a comparison of the sites of acid phosphatase activity in an adult filaria, setaria sp. and in some gastro-intestinal nematodes.the histochemical localization of acid phosphatase in an adult filaria, setaria sp. obtained from the peritoneal cavity of a cow was closely examined and compared with that of adult nematodes parasitic in the host alimentary canal; special attention was paid to the intestine and body wall of the parasites. setaria sp. was found to show high acid phosphatase activity in the interchordal hypodermis of the body wall and uterine microfilariae, and similar activity is suspected to occur in the cuticl ...19807195002
pathogenicity of hookworms. the significance of population regression for the pathogenicity of hookworms.a method is described to estimate the reduction of the hookworm population in the host during the infection period (population regression). a formula is proposed to estimate the average worm population during the infection period, on the assumption that a decreasing hookworm population causes a decrease in daily blood loss. daily blood loss per worm was calculated for ancylostoma caninum: 43 microliters; for a. ceylanicum: 14 microliters for a. braziliense: 5 microliters. accordingly hookworms ...19807210160
experimental infection of chickens with ancylostoma caninum: migration and distribution of larvae in tissues.two hundred one-day-old male white leghorn chickens (gallus domesticus) divided into 4 groups were inoculated with a single dose of 500, 1000, 2000 or 4000 filariform larvae of ancylostoma caninum. larval recoveries were made from different tissues at intervals from 4 hours to 72 hours after infection. larval migration in the heart took place within 4 hours in all the groups except group a with 500 larvae and in thoracic muscle at 8 hours. larvae also migrated into liver, lungs and neck muscle w ...19807410806
scanning electron microscopy of the penetration of newborn mouse skin by strongyloides ratti and ancylostoma caninum larvae.the scanning electron microscopical appearances of infective larvae of strongyloides ratti and ancylostoma caninum have been described. particularly noteworthy was the tail of s. ratti which was found to have a distal aperture surrounded by a row of eight projections. the penetration of larvae through newborn mouse skin was investigated. s. ratti larvae forced its way rapidly and directly through the stratum corneum. no larvae of a. caninum were observed in stages of partial penetration but the ...19807434072
[helminths of the common fox (vulpes vulpes l.) from the massif central (france) (author's transl)].sixty nine wild foxes originating from auvergne for the period january 1977 to january 1978 have shown intestinal parasites in the proportion of 76,8 per cent. 59,4 per cent are invaded with cestodes; 72,4 per cent with nematodes and none with trematodes. the list of the identified species is following: 1. cestodes. a) adults and fertile forms of: mesocestoides litteratus in 27,5 per cent of the hosts; taenia crassiceps in 15,9 p.c.; t. polyacantha in 27,5 p.c.; echinococcus multilocularis in 7, ...19807458165
the migratory behaviour and survival pattern of ancylostoma caninum larvae in an adoptively immunised host. 19817228483
pharmacological estimation of histamine in the intestine of mice experimentally infected with repeated doses of ancylostoma caninum larvae.intestinal extracts from normal [uninfected] and experimental [infected with a repeated dose of 500 + 500 + 1000 ancylostoma caninum larvae] mice were bioassayed for histamine using isolated guinea pig ileum preparation. intestinal histamine level of experimental animals significantly increased on 5th [70 ng] and 30th [75 ng] day after the last stimulating dose of infection. the source of this excess histamine and its role in immunity have been discussed.19817229353
comparative anthelmintic efficacy of two schedules of mebendazole treatment in dogs.two schedules of anthelmintic oral treatment, using mebendazole powder, were compared in 73 dogs naturally infected with common helminth intestinal parasites. mebendazole powder was administered to 26 dogs at doses of 22 mg/kg once daily for 3 days and was compared with the same dose given only daily for 5 days into 23 dogs. the 24 other dogs were kept as controls and received a placebo treatment for 5 days. efficacy results for the 3-day treatment schedule of mebendazole were as follows: toxoca ...19817271006
effects of temperature and glucose concentration on glycogen synthesis in ancylostoma caninum. 19817275476
the behaviour of infective ancylostoma caninum larvae in serum gradients.experiments were carried out to investigate if sera of animal species other than dog are chemotactically active for infective larvae of ancyclostoma caninum. those sera were also found to contain such a factor(s), although the larvae were attracted significantly better by dog serum. how this chemotaxis might be applied to the in vivo situation, when infective a. caninum larvae penetrate the skin of dogs, is discussed.19817276506
[effect of various benzimidazole carbamates on somatic larvae of ancylostoma caninum ercolani 1859 (ancylostomidae) and toxocara canis werner 1782 (anisakidae). 1. studies in white mice]. 19817282180
anthelmintic efficacy of amoscanate (c 9333-go/cgp 4540) against various infections in rodents, dogs and monkeys.the anthelmintic activity of amoscanate (c 9333-go/cgp 4540) has been studied in experimental infections with the human hookworm, necator americanus, in hamsters; nematospiroides dubius, hymenolepsis nana and natural infections with syphacia obvelata in mice; ancylostoma caninum, a. ceylanicum in mongrel dogs; oesophagostomum apiostumum and strongyloides fuelleborni in rhesus monkeys. single oral doses of 30-60 mg/kg eliminated 94 to 99% of the total necator parasites in 37-day-old non-patent in ...19817283017
[effect of various benzimidazole carbamates on somatic larvae of ancylostoma caninum ercolani 1859 (ancylostomidae) and toxacara canis werner 1782 (anisakidae). 2. studies of pregnant bitches]. 19817293557
ancylostoma caninum: immunization through transfer of sensitized lymphoid cells & their effect on the expulsion and/or destruction of worm burden in swiss albino mice. 19817309160
the influence of thyroxine on the host-parasite relationship of ancylostoma caninum in swiss albino mice. 19817309337
experimental ancylostomiasis in swiss albino mice: adrenal and thyroid histopathology.remarkable hypertrophic changes were observed in the adrenal and thyroid glands of male mice after 7 to 16 days of infection with the filariform larvae of ancylostoma caninum, but not in females. the adrenal gland revealed enormous enlargement of cells in the zonae glomerulosa, fasciculata and medulla, and also the formation of big vacuoles in the glomerular zone, whereas the thyroid gland showed distinctly hypertrophied follicular epithelium with marked acolloidal condition and follicular mass ...19817310112
[visceral larva migrans caused by ancylostoma caninum]. 19817311953
[effect of various benzimidazole carbamates on somatic larvae of ancylostoma caninum ercolani 1859 (ancylostomidae) and toxocara canis werner 1892 (anisakidae). 3. immunofluorescent serological studies of antibody levels in treated and untreated dogs]. 19817027683
[helminthes infections in the small intestine of stray dogs in ejungbu city, kyunggi do, korea]one hundred and two stray dogs in ejungbu city of kyunggi-do, korea were examined to reveal out the degree of natural helminthic infection of small intestine. helminthes were collected at autopsy, by scraping the intestinal contents. the collected worms were classified by their morphological characteristics. out of 102 examined, 72 dogs were infected with any helminthes. the common helminthes were dipylidium caninum (47%), ancylostoma caninum (26%), toxascaris leonina (16%) and toxocara canis (1 ...198112902719
[an epidemiological study on zoonoses in korea]helminthic zoonoses are of significant importance to the public health and to the socioeconomic consequences especially in lost-meat, animal products and animal labor. for past several decades in korea, it has been recognized that endoparasitic infections among domestic animals are extremely common and many of the helminth parasites of man have been acquired from, or are shared with domestic animals. however, there was no survey of a nationwide scale on the prevalence of animal helminthiasis; an ...198112902720
evaluation of granulated fenbendazole as a treatment for helminth infections in dogs.a granulated formulation of fenbendazole was tested in 95 dogs harbouring naturally occurring infections of toxocara canis, ancylostoma caninum, trichuris vulpis, dipylidium caninum, and taenia spp and in 19 laboratory-reared beagle pups experimentally infected with toxascaris leonina. the drug was administered in moistened dry dog food or in canned dog food. in dosage titration and confirmational studies, using worm counts in naturally infected dogs, the drug was 98%-100% effective at a dosage ...19827056663
gonadectomy and survival of ancylostoma caninum (nematoda) filariform larvae in mice.gonadectomy reversed the susceptibility response of male and female swiss mice to ancylostoma caninum infection. orchiectomy decreased the survival of filariform larvae (p greater than 0.001 to less than 0.25), whereas ovariectomy increased it significantly (p greater than 0.001 to less than 0.01).19827060717
the intestinal helminths of the red fox and some other carnivores in southwest germany.in south-west germany between 1975 and 1980, 3,573 red foxes (vulpes vulpes), 84 badgers (meles meles), 47 stone martens (martes foina), and 387 cats (felis catus) were examined for intestinal helminths. in foxes the extent of infections was: taenia crassiceps 24%, t. polyacantha 8%, t. taeniaeformis 0.6%, t. serialis 0.5%, mesocestoides leptothylacus 20%, mesocestoides sp. 0.2%, toxocara canis 32%, toxascaris leonina 3%, uncinaria stenocephala 26%. one to three foxes harboured t. hydatigena, t. ...19827072323
effect of febantel against ancylostoma caninum and trichuris vulpis infections in dogs.febantel was administered as a 3.4% paste to 45 dogs infected with 1 or more nematode species, which included ancylostoma caninum and trichuris vulpis. dosage levels of 5, 10, or 15 mg/kg of body weight daily for 3 consecutive days for a total of 15, 30, or 45 mg/kg were administered. at 15 mg/kg, all dogs were completely cleared of all nematode and cestode infections, including a caninum, t vulpis, uncinaria stenocephala, toxocara canis, toxascaris leonina, taenia sp, and dipylidium caninum, ex ...19827103181
effect of immunosuppressants in mice: part i--promethazine hydrochloride and hydrocortisone acetate treatments during experimental infections of ancylostoma caninum and nematospiroides dubius. 19827106855
effect of repeatedly sensitized bursal extract on the resistance of wlh chickens to experimental infection of ancylostoma caninum larvae. 19827118369
experimental infection with ancylostoma caninum larvae in mice. vii. role of promethazine hydrochloride in the rejection of worm burden from the intestine.acquired resistance of female swiss albino mice (6 to 8 weeks old) to ancylostoma caninum infection was demonstrated by the transfer of mesenteric lymph node cells (mlnc) from resistant (sensitised and promethazine treated), sensitised and untreated and non-sensitised and untreated donors to normal recipients of the same isogeneic strain. mlnc from sensitised and promethazine treated donors were more effective in suppressing the rejection mechanism of worm burden in recipients in comparison to t ...19827119431
anthelmintic activity of closantel against ancylostoma caninum in dogs.the efficacy and minimum therapeutic dose of closantel, an injectable salicylanilide anthelmintic, was evaluated on adult ancylostoma caninum. doses of 7.5 and 10 mg/kg had a marked anthelmintic effect on adult stages, removing 99 and 98%, respectively. a second experiment tested the efficacy of closantel against hypobiotic larval stages of a. caninum. a dose of 20 mg/kg did not affect the abundance of arrested hookworm larvae or prevent their subsequent development, but it may have inhibited th ...19827119989
the function of microtubules during spermatogenesis of ancylostoma caninum.ancylostoma caninum spermatogonia appeared as unspecialized cells with large nuclei and little cytoplasm when examined by electron microscopy. mitochondria and ribosomes were numerous but endoplasmic reticulum of either the rough or smooth variety was rarely observed. microtubules were abundant but were mostly concentrated in areas where the cells connected with a central cytoplasmic core, or rachis. microtubules present elsewhere in the cytoplasm were not associated with any particular organell ...19827131187
development and fate of the membranous organelles in spermatozoa of ancylostoma caninum.during development membranous organelles first appeared in the primary spermatocytes of ancylostoma. they were derived from the golgi as two separate components. one component, an electron-dense spheroid, quickly fused with other newly-formed cup-shaped, membranous structures to form the asymmetrical organelles. initially the membranous organelles had a homogeneous matrix but later became filled with quantities to 6- 8-nm filaments. following the meiotic reduction divisions each cell assumed a b ...19827131188
acetylcholinesterase activity in different stages of ancylostoma caninum. 19827147012
ancylostoma caninum: adult worm removal, corticosteroid treatment, and resumed development of arrested larvae in dogs. 19827151941
the effect of ultrafiltrated and dialysed dog serum on the chemotaxis of infective hookworm larvae of ancylostoma caninum. 19827157942
gonadal hormones in experimental ancylostoma caninum infections in male swiss albino mice. 19827160962
gastrointestinal helminth parasites of dogs in the western area--freetown (sierra leone).a survey of faecal samples taken from 1277 dogs in the western area (freetown, sierra leone) revealed an infestation by ancylostoma caninum (46,1%), toxocara canis (13,5%), toxascaris leonina (5,9%), dipylidium caninum (3,8%), and spirocerca lupi (3,5%). sampling was made per rectum. the age of the dogs examined, both male and female, ranged from one month to fifteen years. the clinical picture of the dogs affected is described and methods of treatment are suggested.19827171367
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