| ultrastructural studies on diphyllobothrium ditremum and d. dendriticum (cestoda, pseudophyllidea), with emphasis on the scolex tegument and the tegument in the area around the genital atrium. | the scolices of d. ditremum and d. dendriticum are similar in regard to general morphology and ultrastructure of the tegument. at the scolex apex and along the upper bothrial edges sensory endings are numerous. the inner bothrium surface of d. ditremum appears to be plain or smooth, the distal cytoplasm is only about 0.6 mum thick and covered with long and slender microtriches. when d. ditremum is attached to the host gut an adhesive layer of secreted substance exists between the inner bothrium ... | 1975 | 1199407 |
| cytology and cytochemistry of the scolex gland cells in diphyllobothrium ditremum (creplin, 1825). | | 1973 | 4355289 |
| [efficacy of paromomycin sulfate against human cestodiasis and its pharmacological action on tapeworm in vitro]. | recently, it has been reported that paromomycin sulfate has marked anthelmintic efficacy against tapeworm infections in man. in the present study this drug was used in the treatment of 14 cases of diphyllobothriasis latum and 1 case of taeniasis saginata. also, the actions of paromomycin sulfate on diphyllobothrium ditremum and d. erinacei were examined pharmacologically using magnus apparatus and biochemical methods. the results obtained were as follows. for the treatment, a total of 50 mg/kg o ... | 1983 | 6876366 |
| [in vitro and in vivo effects of paromomycin sulfate on tapeworm, especially diphyllobothrium ditremum, and clinical effects on diphyllobothriasis in man]. | plerocercoids of d. ditremum were obtained from the japanese surfsmelt (hypomesus pretiosus) and administered to golden hamsters. the animals were treated with paromomycin sulfate on the 16th day of infection. anthelmintic effect was imperfection after administration of 530 mg/kg in 4 divided doses. kamala and bithionol, however, successfully expelled the worm at the doses of 80 and 160 mg/kg and 12.5--70 mg/kg, respectively. the balloon-like structures and the other morphological changes of the ... | 1983 | 6876367 |
| metazoan parasite community structure in brown trout from two lakes in western ireland. | a total of 549 brown trout were caught from two lakes, lough feeagh and bunaveela lake, in the burrishoole system, co. mayo, ireland. seven species of metazoan parasite were detected but only four species occurred in > or = 10% of the sample. the parasite community of the trout was dominated by a single species, pomphorhynchus laevis, with a prevalence if 58%. only one allogenic helminth species was recorded from the trout, diphyllobothrium ditremum, with the community mainly comprising autogeni ... | 1995 | 8522767 |
| parasite community similarity between four irish lakes. | a total of 140 trout were examined from four lakes in north west ireland, loughs craghy, waskel, meela and owennamarve. eleven species of metazoan parasite were recorded, ten of which were of freshwater origin and anisakissp. was the only marine species. no acanthocephalan species were found. diphyllobothrium ditremum, d. dendriticum and anisakissp. were the only allogenic species. lough owennamarve had the largest component community with nine species recorded. lough meela, the only brackish wa ... | 2000 | 11138018 |
| seasonal variation of parasite infection of three-spined stickleback (gasterosteus aculeatus l.) in the southern baltic. | seasonal changes of infection were observed in the case of some species of ectoparasites: trichodina domerguei domerguei, t. tenuidens, gyrodactylus arcuatus, and thersitina gasterostei, as well as for endoparasites: glugea anomala, schistocephalus solidus, diphyllobothrium ditremum, and proteocephalus filicollis. same seasonal changes in frequency of developmental stages were observed in the case of females t. gasterostei. the highest level of infection with ectoparasites was observed in spring ... | 2002 | 16894719 |
| inter- and intra-specific characterization of tapeworms of the genus diphyllobothrium (cestoda: diphyllobothriidea) from switzerland, using nuclear and mitochondrial dna targets. | human diphyllobothriosis is caused by at least 14 species of cestodes belonging to the genus diphyllobothrium. molecular analysis by sequencing of nuclear and mitochondrial targets identifies some species at inter- and intra-specific level, and helps to reconstruct their phylogenetic relationships. nevertheless, the suitability of further molecular targets deserves to be widened, and the comparison of samples of different geographical origin could allow their intra-specific characterization, whi ... | 2010 | 19800982 |
| rapid identification of nine species of diphyllobothriidean tapeworms by pyrosequencing. | the identification of diphyllobothriidean tapeworms (cestoda: diphyllobothriidea) that infect humans and intermediate/paratenic hosts is extremely difficult due to their morphological similarities, particularly in the case of diphyllobothrium and spirometra species. a pyrosequencing method for the molecular identification of pathogenic agents has recently been developed, but as of yet there have been no reports of pyrosequencing approaches that are able to discriminate among diphyllobothriidean ... | 2016 | 27853295 |
| parasite communities of two three-spined stickleback populations in subarctic norway--effects of a small spatial-scale host introduction. | co-introduction and colonization of parasites with the introduction of new host species into aquatic habitats may depend on the host specificity and dispersal capabilities of the parasites. we compared the metazoan parasite community of an introduced three-spined stickleback (gasterosteus aculeatus) population with that of the nearby source population in subarctic norway. as expected from a small spatial scale (5 km), the parasite component communities in the two lakes were highly similar. all i ... | 2015 | 25630694 |
| the influence of changing prey availability on the prevalence of diphyllobothrium in river otters from yellowstone national park. | parasite prevalence in predatory mammals is influenced by numerous factors including diet, sex, season, and habitat. we examined the effect of such factors on the prevalence of gastrointestinal helminths in north american river otters ( lontra canadensis ) in yellowstone lake, yellowstone national park. otters in this ecosystem have recently experienced a decline in their main prey, yellowstone cutthroat trout ( oncorhynchus clarkii bouvieri), and have, in turn, increased consumption of alternat ... | 2015 | 25192057 |
| invalidation of diphyllobothrium hottai (cestoda: diphyllobothriidae) based on morphological and molecular phylogenetic analyses. | diphyllobothrium hottai yazaki, fukumoto & abe, 1988 was described based on the morphology of adult worms recovered from golden hamsters that had been experimentally infected with plerocercoids obtained from japanese surf smelts (hypomesus pretiosus japonicus) and olive rainbow smelts (osmerus eperlanus mordax). although d. hottai was considered to be distinct from diphyllobothrium ditremum (creplin, 1825), their taxonomic relationship requires further clarification. in our study, d. hottai and ... | 2016 | 27353020 |
| [comparative analysis of lipid metabolism indices in some parasites of the white charr (salvelinus albus) from the lake krinotskoe]. | comparative study of lipid metabolism indices (total lipids, separate lipid fractions, level of the lipid peroxidation processes, and antioxidant protection) was carried out in three parasite species collected from the white char in the lake kronotskoe: diphyllobothrium ditremum crepin, 1825 (cestoda), philonema oncorhynchi kuitunen-ekbaum, 1933 (nematoda) h neoechinorhynchus salmonis ching, 1984 (acanthocephala). acanthocephalans possessed significantly greater levels of total lipids, triacylgl ... | 2015 | 26314155 |
| plerocercoids of the cestode diphyllobothrium ditremum in brown trout salmo trutta: substantial increase in infection after establishment of european minnow phoxinus phoxinus. | this study focuses on plerocercoids of the cestode diphyllobothrium ditremum in brown trout salmo trutta from the subalpine lake øvre heimdalsvatn in south-central norway. salmo trutta was the only fish species in this lake until european minnow phoxinus phoxinus was registered in 1969. the p. phoxinus population increased substantially in the following years. in contrast with the 1969-1972 period, when plerocercoids of d. ditremum were practically absent in s. trutta, there was a high prevalenc ... | 2017 | 28758219 |