Molecular and Morphological Characterization of Cysticercus tenuicollis in Red Deer (Cervus elaphus) from Turkey

Cengiz, Görkem; Tenekeci, Gözde Yücel; Bilgen, Nüket

doi:10.2478/s11686-019-00085-1

Cited by 14 publications

(12 citation statements)

References 16 publications

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“…However, it will be important to know if the current genetic diversity exists outside China. While our investigation acknowledges some limitations in terms of host types and geographical coverage, recent data from wild boars, moose, red deer (Cengiz et al, 2019;Filip et al, 2019), sheep and goats (Kilinc et al, 2019;Ohiolei et al, 2019;Sarvi et al, 2020) from other countries, have reported very high genetic variation within T. hydatigena populations than previously thought. Therefore, more investigations across the globe using longer mtDNA, e.g.…”

mentioning

confidence: 61%

“…Meanwhile, molecular studies to compare and investigate the genetic population structure to confirm or corroborate these differences are scanty. Where available, the majority of the studies employ partial gene sequences (Boufana et al, 2015;Cengiz et al, 2019;Muku et al, 2020;Alvi et al, 2020). Moreover, short DNA fragments have been found to often lack the potential to fully resolve the phylogenetic relationship that exists among some species of cestodes (Kinkar et al, 2016(Kinkar et al, , 2018Ohiolei et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Also, recent studies on T. hydatigena isolates from different wild ungulates have observed morphological variations in rostellar hooks morphometry and other cysticerci features with some degree of correlation with the molecular data generated as seen in the distinct phylogenetic clades observed in the tree (Cengiz et al, 2019;Filip et al, 2019). In light of these observations, it is plausible that investigating the genetic diversity of T. hydatigena using longer mitochondrial DNA (mtDNA) could provide deeper insight into the genetic diversity than what is currently known.…”

Section: Introductionmentioning

confidence: 99%

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A new molecular nomenclature for Taenia hydatigena: mitochondrial DNA sequences reveal sufficient diversity suggesting the assignment of major haplotype divisions

Ohiolei

Yan

et al. 2020

Parasitology

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Cysticercosis caused by the metacestode larval stage of Taenia hydatigena formerly referred to as Cysticercus tenuicollis is a disease of veterinary importance that constitutes a significant threat to livestock production worldwide, especially in endemic regions due to condemnation of visceral organs and mortality rate of infected young animals. While the genetic diversity among parasites is found to be potentially useful in many areas of research including molecular diagnostics, epidemiology and control, that of T. hydatigena across the globe remains poorly understood. In this study, analysis of the mitochondrial DNA (mtDNA) of adult worms and larval stages of T. hydatigena isolated from dogs, sheep and a wild boar in China showed that the population structure consists of two major haplogroups with very high nucleotide substitutions involving synonymous and non-synonymous changes. Compared with other cestodes such as Echinococcus spp., the genetic variation observed between the haplogroups is sufficient for the assignment of major haplotype or genotype division as both groups showed a total of 166 point-mutation differences between the 12 mitochondrial protein-coding gene sequences. Preliminary analysis of a nuclear protein-coding gene (pepck) did not reveal any peculiar changes between both groups which suggests that these variants may only differ in their mitochondrial makeup.

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confidence: 61%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new molecular nomenclature for Taenia hydatigena: mitochondrial DNA sequences reveal sufficient diversity suggesting the assignment of major haplotype divisions

Ohiolei

Yan

et al. 2020

Parasitology

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“…The adult parasites reside in the intestine of the definitive hosts such as dogs and other carnivores such as foxes, wolves, jackals, lynx, raccoons, bears and cats [4]. The intermediate hosts, generally small ruminants and, less frequently pigs, cattle, deer and other wild species, get infected by ingesting eggs from contaminated pasture [5][6][7]. After the eggs hatch in the small intestine of the intermediate hosts, developing cysticerci migrate to reach the liver, and occasionally other organs such as the lungs and kidneys [8].…”

Section: Introductionmentioning

confidence: 99%

Αcute visceral cysticercosis caused by Taenia hydatigena in lambs: ultrasonographic findings

et al. 2020

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Background Cysticercosis caused by cysticercus tenuicollis is a metacestode infection that affects several species of ungulates. It is caused by the larval stage of Taenia hydatigena, an intestinal tapeworm in dogs and wild canids. In the intermediate host, the mature cysticerci are usually found in the omentum, mesentery, and peritoneum, and less frequently in the pleura and pericardium. The migrating larvae can be found mostly in the liver parenchyma causing traumatic hepatitis in young animals. Most infections are chronic and asymptomatic, and are diagnosed at the abattoir. The acute form of infection is unusual in sheep and reports of death in lambs are rare. Methods In March 2018, fifteen female lambs presented anorexia, weakness, lethargy, and death secondary to acute visceral cysticercosis. Twelve of them underwent hepatic ultrasonography. Examinations were performed on standing or left lateral recumbent animals. Results Livers of affected animals presented rounded margins and a thickened, irregular and hyperechoic surface. Hepatic parenchyma appeared to be wholly or partially affected by lesions characterized by heterogeneous areas crossed by numerous, irregular, anechoic tracts ranging from 1 to 2 cm in length and 0.1 to 0.2 cm in width. Superficial and intraparenchymal cystic structures were also visualized. The presence of lesions was confirmed by anatomopathological examination, and T. hydatigena cysticerci was identified by morphological and molecular characterization of isolates. Conclusions Our results highlighted that hepatic ultrasonography is effective for an intra-vitam diagnosis of acute cysticercosis in lambs.

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“…Parasites have a significant impact on wildlife populations, including reproduction and survival (Anderson 1978). Although there are many studies on the wild animals in Turkey (Uslu et al 2008, Acıcı et al 2017, Bolukbas et al 2012, Girisgin et al 2018, Dik and Kılınç 2015, studies on helminth infections that infect red deer are limited (Cengiz et al 2019). So far, there has not been a study to determine the Elaphostrongylus cervi infection in red deer in Turkey.…”

Section: Introductionmentioning

confidence: 99%

Elaphostrongylus cervi (Cameron, 1931) in Red deer (Cervus elaphus): First Record in Turkey

Kartal

Eser

Güzel

2020

Kocatepe Veterinary Journal

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This study was carried out to determine the presence of Elaphostrongylus cervi infection found in Red deer at Eskişehir Catacık Red Deer Production Station between June-July 2020. Based on the red deer traces and signs in the study area, 32 fresh faeces of animals were collected from the places where the faeces density was found. Stool samples were examined for cestode rings macroscopically, and microscopically by sedimentation, saturated salt flotation, and Baermann Wetzel methods. Larvae were found in all the collected faeces. The larvae obtained by the Baerman technique were identified at the species level using the relevant literature. E. cervi identified in red deer with this study is the first record in our country. Thus, it will provide valuable data for the red deer in Turkey

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Molecular and Morphological Characterization of Cysticercus tenuicollis in Red Deer (Cervus elaphus) from Turkey

Cited by 14 publications

References 16 publications

A new molecular nomenclature for Taenia hydatigena: mitochondrial DNA sequences reveal sufficient diversity suggesting the assignment of major haplotype divisions

A new molecular nomenclature for Taenia hydatigena: mitochondrial DNA sequences reveal sufficient diversity suggesting the assignment of major haplotype divisions

Αcute visceral cysticercosis caused by Taenia hydatigena in lambs: ultrasonographic findings

Elaphostrongylus cervi (Cameron, 1931) in Red deer (Cervus elaphus): First Record in Turkey

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