| the interrelationships between the in situ fluxes of water, electrolytes and glucose by hymenolepis diminuta. | | 1976 | 4401 |
| the phosphoenol-pyruvate branchpoint in adult hymenolepis diminuta (cestoda): a study of pyruvate kinase and phosphoenol-pyruvate carboxykinase. | the properties of pyruvate kinase (pk) and phosphoenol pyruvate carboxykinase (pep ck), two enzymes that determine the preferrential accumulation of either succinate or lactate as endproducts of carbohydrate metabolism, are described in adult hymenolepis diminuta. pk activity at vmax and km levels of pep was unaffected by atp, alanine, fdp4, or h+ ions, but was inhibited by 50% at 6.3 mm l-lactate and 30 mm hco3. the addition of 30 mm hco3 increased the km(pep) by 6-fold but did not alter the vm ... | 1977 | 17648 |
| hymenolepis diminuta: properties of phlorizin inhibition of glucose transport. | | 1977 | 19275 |
| proximal-distal absorptive gradients in the in vivo intestine of normal and infected (hymenolepis diminuta: cestoda) rats. | using a single-pass perfusion technique, h2o, na+, cl-, hco3-, and glucose absorption were studied in the jejunum and proximal and distal ileum of rats either uninfected or infected with a tapeworm parasite (hymenolepis diminuta). the effect of parasitization, region of the intestine, type of buffer, and concentration of glucose in the perfusion fluids on the transport data were analyzed by univariate and multivariate techniques. proximal-distal flux gradients were observed for water and all the ... | 1977 | 20212 |
| glycogen synthase hymenolepis diminuta. i. allosteric activation and inhibition. | glycogen synthase (udp glucose: glycogen alpha-4-glycosyltransferase, ec2.4.1.11) of the tapeworm hymenolepis diminuta exists in 2 forms: 1) the i-form (independent), which has significant activity in the absence of glucose 6-phosphate (g6p); and 2) the phosphorylated d-form (dependent), which has no enzymatic activity unless g6p is present. the activity of the i-form is greatly enhanced by a variety of allosteric effectors which have, as their common feature, 1 or more phosphate groups. these i ... | 1979 | 109603 |
| glycogen synthase of hymenolepis diminuta. ii. nutritional state, interconversion of forms, and primer glycogen molecular weight as control factors. | glycogen synthase i (udp glucose: glycogen alpha-4-glycosyltransferase, ec2.4.1.11) of the tapeworm hymenolepis diminuta is the form of the enzyme which is active in vivo, while the d-form represents an inactive "storage form." utilizing the differential effect of inorganic phosphate (pi) on the i and d-forms, the ratio of the 2 forms in vivo has been determined under conditions of starvation of the host and refeeding of the parasite with glucose. this procedure reveals that conversion of the in ... | 1979 | 109607 |
| glycogen synthase in the rat tapeworm, hymenolepis diminuta--i. enzyme activity during development and with crowding. | 1. activity of glycogen synthase (e.c. 2.4.1.11) in hymenolepis diminuta (cestoda: cyclophyllidea) was investigated as a function of development and with crowding. 2. synthase activity was low in the anterior and posterior ends of the worms and highest in the pregravid proglottids in the mid-portion of the strobila. 3. the enzyme activity increased during development of the cestode at least up to 15 days postinfection, but the increase in activity apparently was not due to conversion of the inac ... | 1977 | 122560 |
| glycogen synthase in the rat tapeworm, hymenolepis diminuta--ii. control of enzyme activity by glucose and glycogen. | 1. the proportion of activity in the physiologically active i form of glycogen synthase in hymenolepis diminuta (cestoda) decreased in the worm when the rat host was fasted and was greatly increased in the cestode 1 hr after a 24 hr fasted rat was refed. 2. the increase in glycogen synthase i activity was due to glucose present in the host gut after feeding, not to other physiological changes in the rat intestine due to meal consumption. 3. incubation of intact h. diminuta in vitro with glucose ... | 1977 | 122561 |
| transplantation of hymenolepis diminuta into naive, immune and irradiated mice. | almost 100% of 7- to 10-day-old hymenolepis diminuta became established when surgically transplanted from donor mice into the duodenum of naive recipient mice. transplanted tapeworms survived 8-12 days, by which time they had survived much longer in total than they would have done in the donor. mice previously immunized by a primary infection rejected transplants within 4 days. sub-lethal irradiation (550 rad) delayed rejection by immune mice but such mice still rejected worms much more quickly ... | 1976 | 135242 |
| effect of atp on amino acid transport by hymenolepis diminuta. | | 1978 | 153955 |
| parasitology survey and seroepidemiology of amoebiasis in south kalimantan (borneo), indonesia. | a parasitology surevy was conducted among inhabitants of 7 villages in 3 regencies in south kalimantan province, indonesia. a total of 2,169 stool specimens, 2,756 blood smears and 1,027 serum specimens were obtained, representing samples from approximately 10%, 12% and 5% of the population, respectively. one to 8 different intestinal parasitic infections were detected in 97% of the people. those parasites most frequently found were trichuris trichiura (83%), ascaris lumbricoides (79%), and hook ... | 1975 | 167454 |
| the fine structure of the cysticercoid of hymenolepis diminuta. iii. the scolex. | transmission electron microscopy of the scolex of the 8-day-old hymenolepis diminuta cysticercoid demonstrates its resemblance to the scolex of the adult. a syncytial tegument composed of external and internal layers is connected by cytoplasmic extensions. fully developed microtriches are present. furthermore, a basement membrane, muscle layers, and medullary region containing flame cells, nerve tissue, and other cell bodies are observed. of particular interest is the presence of discrete sensor ... | 1975 | 167533 |
| a survey of intestinal parasitism in a community on the pan american highway route in eastern panama. | a survey of intestinal parasitism was conducted at yaviza, a town in eastern panama's province of darien. single stool specimens from 202 persons, representing 11 percent of the town's total population, were examined. in all, 181 (90 per cent) of the specimens examined were found positive for one or more potentially pathogenic parasites. the most common parasite found was trichuris trichiura, which was observed in 80 per cent of the samples. others were ascaris lumbricoides, in 62 per cent of th ... | 1975 | 167889 |
| the effects of stibophen on phosphofructokinases and aldolases of adult filariids. | trivalent organic antimonials, such as stibophen, have been employed for the chemotherapy of schistosome and filariid infections. the effects of stibophen on adult litomosoides carinii, dipetalonema witei (= viteae), and brugia pahangi were examined. in vitro, lactate accumulation was markedly inhibited by the antimonials as was phosphofructokinase activities in homogenates. incubation of filariids with stibophen and determination of internal concentrations of hexose phosphate also indicated a d ... | 1975 | 171364 |
| cytochemical localization of peroxidase activity in the mitochondria of hymenolepis diminuta. | a cytochemical study of mitochondria of hymenolepis diminuta indicates the presence of a mitochondrial peroxidase. utilizing a 3,3'-diaminobenzidine (dab) medium at ph 9.7, the reaction product is localized in the intracristal space, and between the inner and outer membranes of the mitochondria. no inhibitory effects are exerted on the peroxidase reaction by cyanide, azide, or aminotriazole. in addition, the mitochondria appear to have an enzyme which is cytochemically similar to vertebrate cyto ... | 1976 | 185350 |
| negative results of biochemical tests for collagenase and hyaluronidase activities in extracts of hymenolepis diminuta (cestoda) oncospheres and nippostrongylus muris (nematoda) invasive larvae. | | 1977 | 199322 |
| isolation and partial biochemical characterization of the brush border plasma membrane from the cestode, hymenolepis diminuta. | | 1979 | 229204 |
| enzymes of galactose utilization in the rat tapeworm, hymenolepis diminuta. | 1. crude enzyme preparations from hymenolepis diminuta contained galactokinase, galactose 1-phosphate uridyl transferase and udpgalactose 4-epimerase activity, although their specific activities were low. 2. galactose 1-phosphate non-competitively inhibited galactose phosphorylation. this inhibition, together with the low specific activities of the enzymes in the pathway of galactose utilization, probably accounts for the inadequacy of galactose as a main nutritive carbohydrate for development o ... | 1977 | 233785 |
| hymenolepis diminuta: acidification and bicarbonate absorption in the rat intestine. | | 1975 | 234848 |
| hymenolepis diminuta: effect on the oxidation-reduction potential in the mammalian gastrointestinal canal. | | 1975 | 235446 |
| the effect of ambient ph changes on glucose absorption by the tapeworm hymenolepis diminuta. | | 1975 | 240575 |
| hexokinase from the rat tapeworm, hymenolepis diminuta. | | 1977 | 299626 |
| isozymes of l(+) ldh in hymenolepis diminuta. | | 1977 | 299627 |
| the identification and characterization of a prenoid constituent (farnesol) of hymenolepis diminuta (cestoda). | | 1977 | 299634 |
| galactose utilization by the rat tapeworm, hymenolepis diminuta. | 1. hymenolepis diminuta incorporated label from 14c-galactose into glycogen, but the sugar would not support net glycogen synthesis. glucose stimulated the incorporation of label from 14c-galactose into glycogen, while glycerol did not. 2. during incubations in galactose, large internal pools of galactose and galactose 1-p accumulated, while the concentration of glucose 6-phosphate remained unchanged. 3. in vitro culture experiments indicated that galactose would not support worm growth. therefo ... | 1977 | 318229 |
| hymenolepis diminuta: isolation, purification, and reconstruction in vitro of a cell-free system for protein synthesis. | | 1977 | 320028 |
| hymenolepis diminuta and h. microstoma: mouse immunoglobulins binding to the tegumental surface. | | 1977 | 320030 |
| hymenolepis diminuta: ultrastructural localization of immunoglobulin-binding sites on the tegument. | | 1977 | 330188 |
| prevalence of intestinal parasitic infections among inhabitants of tan-nan village, nantou county, taiwan. | the pork infected with cysticerci was sent to our laboratory in june 1971. microscopic examination revealed the infection of cysticercus cellulosae. subsequently, the source of the pork was traced, and the survey of intestinal parasitism was carried out among inhabitants at tan-nan village, hsin-i district, nantou county, taiwan, in august 1973. results obtained only indicated the presence rather than endemic of taeniasis solium in this village. the parasites and infection rates found in the pre ... | 1979 | 397878 |
| monoamine oxidase in adult hymenolepis diminuta (cestoda). | a membrane-bound monoamine oxidase (ec 1.4.3.4) was demonstrated in homogenates of hymenolepis diminuta. the enzyme oxidized a variety of biologically active amines (in decreasing order: dopamine, adrenaline, noradrenaline, tryptamine, tyramine, octopamine), there was, however, no activity with 5-hydroxytryptamine or benzylamine. no diamine oxidase (ec 1.4.3.6.) could be detected in h. diminuta (using histamine, cadaverine or putrescine as substrates). the monoamine oxidase from h. diminuta was ... | 1979 | 419001 |
| chemotherapeutic effects of 4-isothiocyanato-4'-nitrodiphenylamine (c9333-go/cgp 4540) on infections with nematospiroides dubius, hymenolepis diminuta, hymenolepis nana and spirometra mansonoides. | 4-isothiocyanato-4'-nitrodiphenylamine possessed anthelmintic activity against nippostrongylus dubius and hymenolepis nana in mice and h. diminuta in rats as determined by both egg counts and recovery of parasites at autopsy. no activity was detected against the cestode. spirometra mansonoides, in cats. | 1979 | 421846 |
| the effect of the expulsion phase of trichinella spiralis on hymenolepis diminuta infection in rats. | the effect of the intestinal changes brought about by the expulsion of trichinella spiralis in rats was studied in relation to the growth and survival of a concurrent infection with hymenolepis diminuta, a cestode not normally rejected by the rat in low-level infections. growth of h. diminuta was stunted in rats given t. spiralis just before, or after, infection with h. diminuta, the stunting being more pronounced when the cestode was given closer to the period of inflammation. there was no loss ... | 1979 | 481909 |
| parasite fauna of the house rat rattus rattus diardii in kuala lumpur and nearby villages. | one hundred and fifty one house rats, rattus rattus diardii from five different localities, jinjang, dato keramat, kuala lumpur, sungai besi and selayang baru, were examined for parasites. nineteen species of parasites were recovered. hymenolepis diminuta and nippostrongylus brasiliensis are the predominant species. the dominancy of the parasite species in the rats differed in each locality: hymenolepis diminuta in dato keramat and kuala lumpur; nippostrongylus brasiliensis in sungai besi; gongy ... | 1979 | 483007 |
| [newly detected case of human parasitosis in spain caused by hymenolepis diminuta (rudolphy, 1819)]. | | 1979 | 493590 |
| a unicellular endocrine gland in cestodes. | unicellular glands are reported from the scolex and anterior neck region of hymenolepis diminuta and h. nana. despite positive staining reactions with the presumptive neurosecretory stains, paraldehyde-fuchsin and chrome-alum-hematoxylin, ultrastructurally these glands exhibit many non-neural characteristics. glandular cell processes are frequently found in close proximity to muscular tissue, particularly in the suckers, suggesting a regulatory role in muscle modulation as a possible function. t ... | 1979 | 512754 |
| cellular na+ and atp effects on galactose influx by tissue slices of hymenolepis diminuta. | | 1979 | 512761 |
| the dynamics of infection of tribolium confusum by hymenolepis diminuta: the influence of infective-stage density and spatial distribution. | the mean parasite burden of a population of tribolium confusum is shown to rise to a plateau as the exposure density of infective eggs of hymenolepis diminuta increases. the level of this plateau is shown to be dependent on the nutritional status of the host population, being depressed from approximately 18 cysticeroids/beetle in hosts which have been starved prior to experimentation, to approximately 2 cysticercoids/beetle in satiated hosts. a simple model is used to describe the shape of this ... | 1979 | 537832 |
| ultrastructure of the cyst of hymenolepis diminuta larvae. | electron microscopical studies of the cyst of 1-month-old h. diminuta larvae revealed considerable thickening of the superficial syncytium of tegument and formation of a large number of cavities and canals. the cytoplasm of the tegument is filled with microtubules produced by cytons of parenchymal layer which are analogs of tonofibrils. these peculiarities, together with numerous processes of the external fibrous layer, are regarded as adaptative to the changes of the hydrostatic pressure of the ... | 1979 | 540875 |
| vitamin absorption in the in vivo intestine of normal and infected (hymenolepis diminuta: cestoda) rats. | uptake and serosal transfer of the vitamins thiamine, riboflavin and folic acid have been studied in vivo in normal and parasitized rats infected with hymenolepis diminuta (cestoda). regional differences in intestinal uptake of all three vitamins in both uninfected and parasitized animals were not satistically significant. in the parasitized intestine mucosal uptake and serosal transfer of thiamine were significantly inhibited, with increased mucosal accumulation of the vitamin as luminal thiami ... | 1979 | 541494 |
| hymenolepis diminuta: the role of the tail in determining the position of the worm in the intestine of the rat. | one-worm infections of hymenolepis diminuta in rats had their strobila severed surgically, in the neck region, on day 14 of an infection. the scolex and remaining strobila survived but were recovered from a more posterior region of the intestine where small worms are attached during development. the movement to the new region was usually not complete in 24 h, but was complete by 72 h, and probably by 48 h. the operation, involving laparotomy and an incision in the duodenal wall which avoided sev ... | 1979 | 542327 |
| the effect of praziquantel on hymenolepis diminuta in vitro. | qualitative observations were made on hymenolepis diminuta, h. microstoma, h. nana and pre-adult echinococcus multilocularis in vitro. a dose as low as 0.0001 microgram praziquantel/ml affects the tapeworms, while concentrations of 0.01 - 0.1 and 1-10 microgram/ml cause contraction and paralysis in the contracted state within 10 min and 10-30 s, respectively. the in vitro effects of praziquantel on hymenolepis diminuta have been studied using anaerobic and aerobic incubations and media containin ... | 1979 | 543005 |
| [parasitosis and zoonosis in mice and rats caught in and around beytepe village (author's transl)]. | this helmintho-zoonotic investigation has been made on 106 mice and rats from different species caught in and around of beytepe village, these animals are reservoirs for a number of zoonotic parasites and most of these parasites are causative agents of zoonosis in man. the parasites found and their prevalences are; sphacia obvelata: 42.4%, sphacia muris: 28.3%, aspicularis tetraptera: 14.1%, ascaris lumbricoides (pseudo.) 2.8%, gongylonema neoplasticum: 1.8% trichuris muris: 6.6%, capillaria gas ... | 1979 | 553997 |
| diurnal periodicity of uridine uptake by hymenolepis diminuta. | a diurnal pattern in the uptake of uridine was displayed by the rat cestode hymenolepis diminuta. no periodicity in the uptake of uracil was observed over a 48-hr period. a high level of uridine uptake occurred at 6 pm. when 10-day-old worms were in a posterior location in the intestine of rats maintained on a 6 pm.-6 am. dark cycle-feeding regime, while low levels of uptake were correlated with an anteriad location at 6 am. the lowest levels of uridine uptake were recorded at noon. coincubation ... | 1977 | 557541 |
| in vitro thymidine kinase activity: present in hymenolepis diminuta (cestoda) and moniliformis dubius (acanthocephala), but apparently lacking in ascaris lumbricoides (nematoda). | | 1978 | 566316 |
| niclosamide as a treatment for hymenolepis diminuta and dipylidium caninum infection in man. | in the 5-year period 1973-1977, 43 patients infected with dipylidium caninum and 43 patients infected with hymenolepis diminuta were treated with yomesan (niclosamide) in the dosages recommended by the parasitic disease drug service, center for disease control. the first post-treatment stool specimen and 1-week and 3-month specimens were examined in 13 patients with d. caninum and 19 patients with h. diminuta. one hundred percent (13/13) of those with d. caninum and 89% (17/19) of those with h. ... | 1979 | 572147 |
| effect of the expulsion phase of trichinella spiralis on hymenolepis diminuta infection in mice. | the rapid elimination of the intestinal phase of trichinella spiralis in nih mice is associated with progressive inflammation of the intestinal tract. the non-specific effects of this inflammation were studied in mice concurrently infected with an unrelated parasite, hymenolepis diminuta, which does not stimulate a visible inflammatory response but is also immunologically rejected by this strain of mice. it was demonstrated that the rejection phase of t. spiralis infection had a marked effect up ... | 1977 | 593730 |
| [small mammal helminths in neusiedlersee region]. | 153 small mammals belonging to 22 species were investigated during the year 1975. on this occasion, 29 different species of helminths were found. parallel-infection of one host by different helminths was common. all age-groups and both sexes of hosts were infested. pathological symptoms like eosinophile infiltration of the lungs and splenomegalia were generally observed as accompanying phenomena of endoparasitic infestations. often, there were no distinct symptoms even if the intensity of the in ... | 1977 | 596674 |
| hymenolepis diminuta: electrolyte transport pools of tissues and metabolic inhibitors. | | 1977 | 598444 |
| the effect of worm age, weight and number in the infection on the absorption of glucose by hymenolepis diminuta. | | 1977 | 604819 |
| the fine structure of spermatogenesis in hymenolepis diminuta (cestoda) with a description of the mature spermatozoon. | the processes of spermatogenesis and spermiogenesis in hymenolepis diminuta were studied by electron microscopy using improved preparative techniques. spermatogonia (type a) are characterized by nuclei 3.79 (+/- 0.17) micrometer in diameter, dense cytoplasm packed with free ribosomes and aggregates of mitochondria. after mitoses, certain spermatogonia (type b) assume syncytial rosettes containing eight nuclei. primary spermatocytes maintain the rosette syncytium and have large nuclei (4.28 +/- 0 ... | 1977 | 605649 |
| beetle-eating: a malaysia folk medical practice and its public health implications. | a reported practice of live beetle ingestion in southeast asia was investigated among urban chinese in kuala lumpur, malaysia. results of four casefindings are: (1) this practice may not be confined to west malaysia, (2) it occurs among chinese and malays, (3) the original use of the beetles as an aphrodisiac has been modified to include treatment of a wide variety of ailments and diseases and (4) the practice is relatively uncommon among urban chinese. it was also found through experimental stu ... | 1977 | 610028 |
| hymenolepis diminuta infections in congenitally athymic (nude) mice: worm kinetics and intestinal histopathology. | | 1978 | 624564 |
| the occurrence and distribution of 5-hydroxytryptamine in hymenolepis diminuta and h. nana. | the presence of 5-ht in hymenolepis diminuta and hymenolepis nana was detected by 2 biochemical methods and as yellow fluorescence in a histochemical method. in h. diminuta, 5-ht was found in a concentration of about 1.2 micron/g; this amount did not vary significantly in worms aged 6 to 18 days or more or in various regions of the worm. in h. nana, 5-ht was found in a concentration of about 1.8 micron/g. it was histochemically localized in h. diminuta and h. nana in a pattern similar to that of ... | 1978 | 641668 |
| the effect of mebendazole on different developmental stages of hymenolepis diminuta cysticercoids. | | 1978 | 657019 |
| estimation of the coupling coefficient for glucose and sodium transport in hymenolepis diminuta. | bidirectional fluxes of 3h-glucose and 22na+ in hymenolepis diminuta were examined. pulse-chase techniques involving 2-min incubations with 3h-glucose or 22na+ followed by 15-sec post-incubations with unlabeled glucose and na+, were used to estimate efflux rates of the labels after cell penetration. effect of na+ concentration (10 and 50 mm) on the efflux rates was determined. efflux of 3h-glucose in the 15-sec postincubations was unaffected by na+ concentration and appeared to occur by diffusio ... | 1978 | 660380 |
| tryptic and protease activities in the normal and hymenolepis diminuta-infected rat small intestine. | | 1978 | 660391 |
| hymenolepis diminuta: membrane transport of glucose and beta-methylglucoside. | | 1978 | 668842 |
| hymenolepis diminuta: biochemical properties of peroxidase activity in mitochondria. | | 1978 | 680077 |
| lack of protective immunity after immunization of rats with antigens of hymenolepis diminuta oncospheres, cysticercoids and mature worms. | | 1978 | 719554 |
| prevalence of parasitic infections in malaysian oil palm estate workers. | a survey of workers and families resident in an oil palm estate in malaysia revealed high incidence of parasitic infections. the commonest parasites are t. trichiura (56%), a. lumbricoides (52%), hookworm (28%), entamoeba coli (11.3%) and giardia lamblia (11.3%). mixed infections by two or more parasites was seen in 46% of the subjects. anaemia was present in 70% of children with hookworm infection. eosinophilia was observed in 69% of subjects. one each of hymenolepis nana and hymenolepis diminu ... | 1978 | 725660 |
| hymenolepis diminuta: action of worm rnase against rna. | | 1978 | 729701 |
| hymenolepis diminuta: amino acid transport and osmoregulation. | | 1978 | 739313 |
| hymenolepis diminuta infection in a malaysian oil palm estate worker--first case from malaysia. | | 1978 | 749233 |
| effect of mebendazole on the larval development of three hymenolepidid cestodes. | mebendazole or telmin (which contains 16.7% mebendazole) markedly retarded the development of hymenolepis diminuta and h. nana when their intermediate hosts tribolium confusum were fed on flour mixed with it from day 1 to day 10 p.i. though retardation also occurred with h. microstoma, the effect of the drug on this parasite was noticeably less pronounced than with the other 2 species of this genus. | 1979 | 448594 |
| a case report of hymenolepis diminuta in bangkok, thailand. | a 20-month-old thai girl was brought to the phramongkutkao hospital in bangkok. the girl's stool was examined and ova of hymenolepis diminuta were found. she was treated with niclosamide and magnesium sulphate. six hours after medication three tapeworms without the scolex were expelled in stool. | 1978 | 751220 |
| characterization in vitro of h+ secretion and h+:na+ exchange by an organism normally inhabiting a co2-rich environment: hymenolepis diminuta (cestoda) in the rat intestine. | | 1978 | 751704 |
| course of infection with enteric parasites in hosts shifted from enteral to total parenteral nutrition. | two groups of rats were kept on an oral diet after infection with 10(4) trichinella spiralis or 10 hymenolepis diminuta larvae. sixteen days and 2 days after infection with h. diminuta and t. spiralis, respectively, 8 rats from each group were switched to intravenous (iv) alimentation, while the remaining animals were retained on oral nutrition as controls. rats were killed during the following 21 days. the number of t. spiralis recovered from iv-fed rats was significantly higher than in control ... | 1976 | 819643 |
| hymenolepis diminuta: migration, and the rat host's intestinal and blood plasma glucose levels following dietary carbohydrates intake. | | 1977 | 838031 |
| tupaiataenia quentini gen. et sp. n. (anoplocephalidae: linstowiinae) and other tapeworms from the common tree shrew, tupaia glis. | three species of cestodes recovered from tree shrews, tupaia glis, were identified as sparganum sp., hymenolepis diminuta, and tupaiataenia quentini gen. et sp. n. the new genus is differentiated from mathevotaenia, markewitchitaenia and atriotaenia by being craspedote, possessing a large seminal receptacle, the presence of a hermaphroditic canal leading into the genital atrium, and by having two opposable, muscular lappets on the anterior margin of each sucker. | 1977 | 864565 |
| a simple method of obtaining an enriched fraction of tegumental brush border from hymenolepis diminuta. | a method for isolating an enriched preparation of tegumental brush border from the tapeworm, hymenolepis diminuta, is described. combining incubation of whole tapeworms in krebs-ringer/tris-maleate solution containing a hemolytic saponin, low shear-force agitation, and differential centrifugation, a pellet is obtained at 2,500 g which contains a significant concentration of surface brush border. the content of brush border in this fraction is identified by the presence of numerous microvilli, in ... | 1977 | 864566 |
| lipids from subcellular fractions of the tegument of hymenolepis diminuta. | lipids comprised 37% and 22.1%, respectively, of the day weights of brush border- and vesicle-rich fractions separated by differential centrifugation of isolated h. diminuta tegument. neutral lipids of both fractions were rich in cholesterol, but also contained small amounts of glycerides, sterol esters, and (in brush borders) free fatty acids. phosphatidyl ethanolamine was the most prevalent polar lipid in both fractions, and was particularly abundant (63.4% of total polar lipids) in vesicles; ... | 1977 | 864567 |
| metabolic gradient in hymenolepis diminuta under aerobic conditions. | | 1977 | 873682 |
| hymenolepis diminuta: marker distribution volumes of tissues and mucosal extracellular spaces. | | 1977 | 885209 |
| hymenolepis diminuta: determination of unidirectional uptake rates for nonelectrolytes across the surface "epithelial" membrane. | | 1977 | 885210 |
| hymenolepis diminuta: unstirred layer thickness and effects of active and passive transport kinetics. | | 1977 | 891700 |
| hymenolepis diminuta and hymenolepis microstoma: effect of ouabain on active nonelectrolyte uptake across the "epithelial" syncytium. | | 1977 | 891710 |
| chloride-sensitive glucose transport in hymenolepis diminuta. | the maximal rate of glucose influx in hymenolepis diminuta decreased when cl- in the incubation medium was replaced with acetate, benzoate, bicarbonate, formate, hippurate, iodide, lactate, mandelate, or nitrate. the effect of cl- deletion on glucose influx using any of these anions was reversed when worms were incubated in krebs-ringer saline for 15 min. glucose in the incubation medium increased 36cl- influx in worms, while in na+-free media the presence of glucose had no effect on 36cl- influ ... | 1977 | 915608 |
| hymenolepis diminuta unresponsive to quinacrine. | | 1977 | 919530 |
| the effect of mebendazole on the development of hymenolepis diminuta in tribolium confusum. | | 1976 | 949657 |
| evidence for a sodium ion exchange carrier linked with glucose transport across the brush border of a flatworm (hymenolepis diminuta, cestoda). | the manner in which the flatworm, hymenolepis diminuta (cestoda), regulates the transport of glucose and na+ across the brush border was examined. while the presence of an unstirred region in the brush border may favor the reabsorption of leaked glucose, some leaked glucose was lost to the ambient medium. this loss was markedly enhanced by preloading the worms with glucose and by removing na+ from the incubation medium. since glucose and na+ influxes are coupled, glucose leakage stimulated the i ... | 1976 | 953010 |
| loss of hymenolepis diminuta from the rat. | | 1976 | 955777 |
| increased hepatic lysosomal enzyme levels in mice infected with hymenolepis diminuta. | | 1976 | 966390 |
| evasion of the haemocytic defence reaction of certain insects by larvae of hymenolepis diminuta (cestoda). | larvae of hymenolepis diminuta develop in the haemocoele of the beetles tribolium and tenebrio, and of the locust schistocerca gregaria, without being encapsulated by haemocytes. the mechanism of this evasion of the haemocytic defence reaction has been examined using various techniques. larvae grown in culture and injected into s. gregaria have a few or no haemocytes adherent even after 8h, although latex beads injected at the same time have been thickly encapsulated. this, and results of transp ... | 1976 | 967532 |
| public health significance of zoonotic tapeworms in korea. | through an epidemiological review on the zoonotic tapeworms in korea, the frequency and severity of the zoonoses have been recognized. taeniasis and human cysticercosis are of importance to the public health in korea. the frequency of taeniasis is 0.3% to 12.7% discovered by stool examination and 4.5% to 38.0% discovered by questionaire survey. taeniasis occurs more frequently in males than in females and, especially, in both sexes in the age-group of 20 to 49. t. saginata is more common that t. ... | 1976 | 977229 |
| metabolic indices for evaluating the in vitro maintenance of hymenolepis diminuta in the presence and absence of various additives. | an in vitro maintenance system for h. diminuta was devised by modifying the cultivation procedure of schiller (1965). in this diphasic maintenance system, tissue culture medium (triple eagle's or nctc-135) was used, in lieu of whole blood, as the 30% supplement to the agar phase. this provides a more defined system suitable for studying the effects of various additives. morphological criteria were established which aided in assessing the efficacy of media used for the maintenance of 6- and 8-day ... | 1976 | 978363 |
| the in vitro effects of farnesol and derivatives on hymenolepis diminuta. | employing an in vitro maintenance system, in which 8-day-old hymenolepis diminuta survives for 24 hr (fioravanti and macinnis, 1976), it was found that farnesol or farnesal supplementation of the medium had no beneficial effects on maintenance and these substances induced necrosis at higher concentrations. similar experiments utilizing schiller's (1965) culture system demonstrated that neither farnesol, farnesal, nor farnesyl methyl ether exhibited growth promoting effects and were toxic to the ... | 1976 | 978365 |
| quantitative and qualitative analysis of helminth fauna in rattus rattus rufescens. | a helminthological survey of 149 house rats in jodhpur during the year 1975 revealed infection with 8 helminth species: 4 cestodes, vampirolepis fraterna, hymenolepis diminuta, mathevotaenia symmetrica and taenia taeniaeformis (larval stage); 3 nematodes, aspiculuris pakistanica, rictularia ratti and syphacia sp. and one acanthocephalan, moniliformis sp. vampirolepis fraterna, h. diminuta and a. pakistanica were most common, r.ratti and m. symmetrica less frequent, and t. taeniaeformis, syphacia ... | 1976 | 987094 |
| synergistic growth promoting action of l-cysteine and nitrogen upon hymenolepis diminuta cysticercoids in vitro. | development in vitro of cysticercoids of the cestode hymenolepis diminuta in the presence of l-cysteine proceeded twice as rapidly under 100% nitrogen as it did with air as the gas phase. no growth was obtained with the following: d-cysteine, l-cysteine methyl ester, s-aminoethyl cysteine, l-cystine, glutathione (reduced), l-methionine, d-pantothenic acid, taurine, or thioglycolic acid; limited growth only was obtained with ascorbic acid and dithiothreitol. homocysteine or coenzyme a was as effe ... | 1976 | 1003285 |
| serum and antral gastrin levels in rats infected with intestinal parasites. | serum and antral gastrin were measured in rats infected with either trichinella spiralis or hymenolepis diminuta as a step in testing the hypothesis that parasites change certain aspects of host physiology by altering gastrointestinal (gi) hormone levels or responses to gi hormones. parasitism with t. spiralis was associated with inflammatory changes in the small bowel mucosa and with a significant increase in serum gastrin. neither changes in hormone level nor inflammation were induced in tapew ... | 1976 | 1008130 |
| characterization of nucleoside transport in hymenolepidid cestodes. | three species of cestodes, hymenolepis diminuta, h. citelli, and h. microstoma, were shown to transport nucleosides by a mediated process. in h. diminuta the ki values of various competitive inhibitors led to the conclusion that at least 2 different loci are involved in the transport of nucleosides. one of these loci has greater specificity for the purine nucleosides, the other for pyrimidine nucleosides. no significant difference was observed in their affinity for ribo- or deoxyribonucleosides, ... | 1975 | 1079253 |
| the role of glucose in the lipid metabolism of the rat tapeworm hymenolepis diminuta. | | 1975 | 1112624 |
| correlations between the amino acid pools of hymenolepis diminuta and the rat intestine. | | 1975 | 1125873 |
| an explanation of the apparent reversal of the circadian migration by hymenolepis diminuta (cestoda) in the rat. | hymenolepis diminuta exhibits 2 concurrent migrations: an age-dependent, forward migration and a circadian migration. in experiments where the age of worms was assumed to be uniform throughout the test-day, 2 patterns (7-day-old and 16-day-old) of circadian migration were seen and an apparent reversal in circadian pattern suggested. in experiments where the age of worms became progressively older during the test-day, only the 16-day-old pattern was seen and no reversal was observed. the 7-day-ol ... | 1975 | 1127555 |
| developmental physiology of cestodes. xiv. roughage and carbohydrate content of host diet for optimal growth and development of hymenolepis diminuta. | diets of rats infected with hymenolepis diminuta (cestoda: cyclophyllidea) were altered with respect to carbohydrate content and to roughage, and the effects on worm growth and development were studied. compared to worms from rats fed a 56% glucose diet, those on a 56% starch diet were heavier at 10 and 15 days and had more immature proglottids at 5 days, mature prglottids at 10 days, and mature and gravid proglottids at 15 days postinfection. in addition, worms from rats fed the starch diet con ... | 1975 | 1138038 |
| haematological and immunological responses to the tapeworm hymenolepis diminuta in man. | self-infections with the tapeworm hymenolepis diminuta were carried out to study the haematological and immunological responses in man. infection caused pronounced eosinophilia, an increase in plasma viscosity and the production of parasite-specific igg and igm. circulating ige was not detected. there were no significant changes in erythrocyte values or serum transaminases. | 1975 | 1162734 |
| studies on the reproductive system of hymenolepis diminuta using autoradiography and transplantation. | adult hymenolepis diminuta exposed in vitro for 3 hr to 3h-thymidine showed incorporation of the isotope on autoradiograms over nuclei of actively dividing cells in the testes, ovary, vitellaria, and developing embryos in the eggs. timing studies utilizing labeled worms transplanted to uninfected hosts showed that it took 18 hr for spermatogonia to develop to primary spermatocytes, 24 hr to secondary spermatocytes, 36 hr to spermatids, and 48 hr to sperm bundles. self-insemination was confirmed ... | 1975 | 1172942 |
| structure and function of parasite surface membranes. ii. concanavalin a adsorption by the cestode hymenolepis diminuta and its effect on transport. | | 1975 | 1175362 |
| an experimental study of the survival characteristics, activity and energy reserves of the hexacanths of hymenolepis diminuta. | similar survival characteristics were demonstrated for hexacanths of hymenolepis diminuta incubated in tyrode's solution with or without a glucose supplement (0-50 mg/ml). the survival rate of hexacanths in all media tested was shown to be age-dependent and led to a maximum life-span of approximately 11 h. the amount of energy reserves, as measured by microdensitometric determination of pas+ material, declined rapidly in time to a plateau at approximately 8 h. residual pas+ matter present beyond ... | 1975 | 1178219 |
| secondary infections of hymenolepis diminuta in mice: effects of varying worm burdens in primary and secondary infections. | in one (1 c) and six (6 c) cysticercoid primary infections of hymenolepis diminuta in nih (inbred) and cflp (outbred) male mice 6 +/- 1 weeks old greater than 85% of the worms established but were rejected (destrobilated or expelled) subsequently. rejection occurs more quickly in 6 c infections than in 1 c infections. considerable worm growth occurs in 1 c and 6 c primary infections but worms from 6 c infections weighed less than worms from 1 c infections on all days studied. expulsion of h. dim ... | 1975 | 1178221 |
| multienzymic nature of pyruvate kinase during development of hymenolepis diminuta (cestoda). | h. diminuta at different stages of development contained as many as five pyruvate kinase isozymes. four of these were unusually sensitive to allosteric activation by fructose-1,6-p2. one isozyme which occurred only in adults or near-adults was insensitive but had a relatively low km. all were inhibited by atp and ca2+, none by alanine, and the ph optimum was unaffected by fructose-1,6-p2. the five isozymes were present in gravid or reproductively active proglottids. two of them occurred after ei ... | 1975 | 1194877 |