Postoncospheral development and cycle of<i>Taenia polyacantha</i>Leuckart, 1856 (Cestoda: Taeniidae)

Rausch, Robert L.; Fay, Francis H.

doi:10.1051/parasite/1988635334

Cited by 12 publications

(10 citation statements)

References 9 publications

(13 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cysticerci of T. crassiceps , T. hydatigena and T. solium have been described in non-human primates. In the current case, some larvae showed a strobila-like structure, which is commonly seen in T. polyacantha [23]. However, the size of the small hooks and, most importantly, the total number of hooks in the present case clearly distinguished it from T. polyacantha (112–148 μm and 62 hooks).…”

Section: Resultssupporting

confidence: 44%

First case of peritoneal cysticercosis in a non-human primate host (Macaca tonkeana) due to Taenia martis

et al. 2014

View full text Add to dashboard Cite

BackgroundInfections with larval stages (metacestodes) of a variety of taeniid species have been described in primates, including humans, with partial to severe clinical consequences. Taenia martis is a tapeworm of mustelids, and martens are mainly their definitive hosts in Central Europe. In the rodent intermediate host cysticerci develop in the pleural and peritoneal cavities. The present report describes a case of T. martis peritoneal cysticercosis in a Tonkean macaque.FindingsAn abdominal mass was detected in a 3-year-old male Tonkean macaque (Macaca tonkeana) born and raised in a primate colony in France. Examination of the mass after laparotomy showed numerous vesicles identified as cysticerci of T. martis, based on the morphology of scolex and hooks, with confirmation by PCR amplification and sequence analysis of the mitochondrial cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit 1 (nad1) genes. Exeresis of the lesion was not possible and praziquantel (5.7 mg/kg) was given twice at an interval of 3 days. The abdominal mass was greatly diminished upon examination 2 months later and no signs of recurrence were noticed during the following 4 years.ConclusionsThis is the first report of T. martis cysticercosis in a monkey. This record and the recent first description of an ocular T. martis cysticercosis in a human show the susceptibility of primates to T. martis and its zoonotic potential. This taeniid species must be considered in the differential diagnosis of cysticercosis in primates.

show abstract

Section: Resultssupporting

confidence: 44%

First case of peritoneal cysticercosis in a non-human primate host (Macaca tonkeana) due to Taenia martis

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Furthermore, experimental infections have demonstrated that voles are more susceptible to V. mustelae than ICR, Balb/C mice ( M. musculus ) in terms of infection rate, recovery percentage and persistency of metacestodes (Iwaki et al , 1996). Experimental studies have also demonstrated that voles are highly susceptible to infections with T. polyacantha (Rausch & Fay, 1988; Fujita et al , 1991). Hydatigera taeniaeformis , on the other hand, has low intermediate host specificity and occurs in several rodent species that inhabit rural and urban areas (Feliu et al , 1997; Reperant et al , 2009).…”

Section: Discussionmentioning

confidence: 99%

Morphological and molecular analyses of larval taeniid species in small mammals from contrasting habitats in Denmark

et al. 2013

View full text Add to dashboard Cite

Taeniid infections in intermediate hosts manifest themselves as extraintestinal larval stages which, in early development, lack species-specific characteristics. The inability to distinguish infections of zoonotic importance such as Echinococcus multilocularis from other taeniid infections that have mainly veterinary significance stimulated the development of species-specific molecular diagnostics. In this study, the prevalence of taeniid infections in potential intermediate hosts was evaluated using both morphological diagnosis and a newly described multiplex polymerase chain reaction (PCR) for species determination. Small mammals (N= 719) were trapped in three different types of habitats in north-east Zealand, Denmark. The sensitivity of the multiplex PCR (90.5%) exceeded that of morphological examination (57.9%) for identifying 95 taeniid infections. The use of the multiplex PCR resulted in higher prevalence rates due to improved detection of immature liver infections with Hydatigera taeniaeformis and Versteria mustelae, but did not affect the observed prevalence rates of peritoneal metacestodes of Taenia polyacantha. The prevalence of taeniid infections showed a significant difference according to habitat type, potentially identifying a 'sylvatic' transmission and an 'urban' transmission, with marked variation among different taeniid species. Versteria mustelae and T. polyacantha were more prevalent in rural forests, while infections with H. taeniaeformis were dominant in urban parks/forests and in residential and farm gardens. The multiplex PCR facilitated a better utilization of wildlife samples by yielding a higher number of definitive diagnoses of ambiguous taeniid infections in liver lesions, allowing for more accurate epidemiological data and, hence, a more accurate risk assessment.

show abstract

“… Rausch and Fay (1988a , b) recognized the existence of two subspecies of T. polyacantha , the temperate Eurasian subspecies T. p. polyacantha and the Holarctic tundra subspecies T. p. arctica . The three-division pattern under the T. polyacantha cluster in both cox1 and nad1 trees ( Fig.…”

Section: Discussionmentioning

confidence: 99%

Taeniid cestodes in Tibetan foxes (Vulpes Ferrilata) detected by copro-PCR: Applications and challenges

Zuo

Sun

Wang

et al. 2020

International Journal for Parasitology: Parasites and Wildlife

View full text Add to dashboard Cite

Tibetan foxes ( Vulpes ferrilata ) have been confirmed as the main wild definitive hosts in echinococcosis transmission in the eastern Tibetan Plateau. However, little information is available about the epidemiology in wildlife from the perspective of the Taeniidae family, which is essential knowledge in understanding the epidemiology and phylogeography of cestode species in the Tibetan plateau. Therefore, in this study, we used copro-PCR techniques, by amplifying nad1 and cox1 gene fragments, to detect the taeniid species from Tibetan fox feces collected in Shiqu County, (Sichuan Province, China), eastern Tibetan Plateau. Phylogenetic relationships between amplified sequences and existed Taenia species genotypes were evaluated. Then, the maximum prevalence (positive PCR results from at least one primer pair) and the conservative prevalence (positive PCR results from at least two primer pairs) were calculated. Thirty-six Tibetan fox feces were analyzed. Echinococcus multilocularis (conservative prevalence ± 95% CI: 22.2% ± 13.6%; maximum prevalence ± 95% CI: 33.3% ± 15.4%) and E. shiquicus (2.8 ± 5.4%; 8.3 ± 9.0%) was detected. Meanwhile, DNA fragments of T. polyacantha were detected with high similarity to NCBI sequences ( cox1 , 94.0%) and to the larva sample DNA sequenced in this study (93.4%), and were supported by phylogenetic analysis. Thus, T. polyacantha might infect Tibetan foxes (5.6% ± 7.5%, 11.1% ± 10.3%). Our limited findings in the epidemiology of parasitic Taenia species suggest that sylvatic transmission cycles for a more species-rich Taeniid community must be established between wild canids and small mammals than just for the two Echinococcus species. Besides, discrepancies in different primer pairs in detecting the taeniid species were evaluated. The sensitivity of some widely used universal primer pairs was poor in detecting Taenia species from canid copro-DNA samples. It is still challenging to the development of effective taeniid species-specific molecular markers especially for non-zoonotic species.

show abstract

Postoncospheral development and cycle ofTaenia polyacanthaLeuckart, 1856 (Cestoda: Taeniidae)

Cited by 12 publications

References 9 publications

First case of peritoneal cysticercosis in a non-human primate host (Macaca tonkeana) due to Taenia martis

First case of peritoneal cysticercosis in a non-human primate host (Macaca tonkeana) due to Taenia martis

Morphological and molecular analyses of larval taeniid species in small mammals from contrasting habitats in Denmark

Taeniid cestodes in Tibetan foxes (Vulpes Ferrilata) detected by copro-PCR: Applications and challenges

Contact Info

Product

Resources

About