Cysticercus fasciolaris (Taenia taeniaeformis Larval Stage) in Urban Rats with Illustration of Histopathological Changes in the Liver

Hasanpour, Hamid; Najafi, Faezeh; Gharagozlou, Mohammad; Azami, Sanaz Jafarpour; Fadavi, Arezoo; Paknezhad, Niloofar; Mowlavi, Gholamreza

doi:10.29252/jommid.5.3.4.43

Cited by 4 publications

(6 citation statements)

References 13 publications

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“…The detailed examination of larva may help in diagnosis. The length and diameter of the larva and number of hooks in rostellum all features in this study were consistent with findings of other researchers (Sharma et al, 2017;Hasanpour et al, 2017).…”

Section: The Identification Of Larvasupporting

confidence: 93%

“…The macroscopically cyst examination revealed, white to cream color as reported by previous authors (Krishnamoorthy et al, 2017;Sharma et al, 2017). The number of cysts directly proportional to the number of eggs ingested (Rodríguez-Vivas et al, 2011;Hasanpour et al, 2017), we observed single to 10 cysts in rat liver. The size of cyst 19 animals showed 1 to 5 mm, 11 animals had 5 to 10 mm size and remaining animal had size of more than 10 mm.…”

Section: The Identification Of Larvasupporting

confidence: 86%

“…When there is more than 30 days old, infection with number of larger cysts involving the all the liver lobes can be seen (Hanes, 1995). The most commonly affected lobe observed is right medial lobe and it is arguable with findings of Hasanpour et al, (2017) in urban rats, this could be due to increase blood supply to the lobe via portal triad. According to Soulsby, (2005) the larvae of C. fasciolaris can be identified with morphological appearances.…”

Section: The Identification Of Larvamentioning

confidence: 96%

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The Larval Stage of Taenia taeniaeformis in Wistar Albino Rats with an Illustration of Biochemical and Histopathological Changes

Shivaramu

Maiti

Mohan

et al. 2021

IJAR

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Background: Performing all the diagnostic tools before subjecting animals for designed experimental study is time consuming and economically not feasible. Furthermore, it may divert the researchers from original planned work to other areas. But these factors not acceptable to compromise in the assessment of effect of different regenerative agents, drugs and herbal preparation on liver. This is important to prevent any diversions in the actual results of the research due to the prior infection caused by Strobilocercus fasciolaris the lab animals. The study aimed to detect Strobilocercus fasciolaris infected Wistar albino rats using biochemical parameters as a diagnostic marker before subjecting the animals to any designed experimental study. Methods: The study mainly utilizes abdominal exploration, morphological examination of the larvae, histopathological examination of liver and finally the biochemical parameters changes in the concerned animal. 192 animals used for this study in that 32 had single to multiple cysts in the liver on abdominal exploration. Characteristic Strobilocercus larval morphology, histopathological alterations on liver and serological biomarkers was studied. Result: Our results showed that the serum levels of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, glucose, gamma glutamyl transferase, blood urea nitrogen, and total protein can be used as indicators to measure the severity of Strobilocercus fasciolaris larva infection in rats.

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Section: The Identification Of Larvasupporting

confidence: 93%

Section: The Identification Of Larvasupporting

confidence: 86%

Section: The Identification Of Larvamentioning

confidence: 96%

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The Larval Stage of Taenia taeniaeformis in Wistar Albino Rats with an Illustration of Biochemical and Histopathological Changes

Shivaramu

Maiti

Mohan

et al. 2021

IJAR

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“…in the Assiut Governorate [29], but higher than the prevalence of 7.8% reported in the same host in Yucatan Mexico [9] and of 7.4% reported in Rattus spp. in Iran [32]. On the other hand, the present study detected a lower prevalence of H. taeniaeformis in rats than did similar studies in Argentina (39.5%) [33], Korea (33.8%) [34], and Grenada, West Indies (67.6%) [35].…”

Section: Discussioncontrasting

confidence: 64%

A parasitological survey of zoonotic cestodes carried by house rats in Aswan, Egypt, reveals cryptic diversity at the molecular level

et al. 2021

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Background and Aim: Some rat cestodes are zoonotic and are capable of parasitizing humans and animals, raising serious concerns regarding human and veterinary health. The study aimed to determine the prevalence and risk factors for cestodes in Egyptian house rats and to characterize the cestodes molecularly. Materials and Methods: The current survey examined 115 house rats (Rattus rattus) in two cities (Edfu and Aswan) in Egypt's Aswan Governorate for cestode infection using integrated molecular approaches (polymerase chain reaction, sequencing, and phylogenetic analysis) and morphological/morphometrical approaches. Results: The cestodes identified in this study exhibited the typical morphological characteristics of Hymenolepis diminuta (Rudolphi, 1819), Hymenolepis nana (Siebold, 1852) (from rat intestine), and Hydatigera taeniaeformis (from rat liver). The species prevalence rates from these three studies were reported to be 8.7%, 10.4%, and 20.9%, respectively. The ribosomal DNA (ITS1, 18S, and complete ITS) sequences revealed that the hymenolepid sequences were highly distinct but were related to other sequences in the GenBank database, with some sequences showing high similarities to those of H. nana and H. diminuta. In addition, the H. taeniaeformis sequences (ITS2 and mitochondrial cytochrome c oxidase subunit 1 [mtCOX1]) obtained in this study were highly similar to some Taenia taeniaeformis GenBank sequences. The constructed phylogram revealed that the hymenolepidid tapeworms examined in this study were classified into four major branches (the majority of which were hybrids of the two species) and belonged to the genus Hymenolepis. In addition, the phylogram of H. taeniaeformis assigned this species to T. taeniaeformis. Conclusion: When typical hymenolepid morphology is combined with molecular and phylogenetic divergence, it may indicate the existence of possible cryptic species. In addition, on the basis of the phylogenetic analysis, genetic diversity within T. taeniaeformis may exist as determined by comparing the metacestode mtCOX1 sequences. The current study presents the prevalence values of zoonotic cestodes and contributes to the body of knowledge, including identification keys and the use of molecular tools for species confirmation.

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“…Uma avaliação parasitológica realizada por Jacinto ( 2016 durante os meses de setembro de 2015 a março de 2016, em Lisboa, Portugal, obteve prevalência de 3,3% para T. taeniaeformis. Hasanpour et al (2017), em Kermanshah no Irã, encontraram uma prevalência de 4,3% de Cysticercus fasciolaris, a forma larval da T. taeniaeformis, em roedores. A maior prevalência de infecções por cestodeos foi relatado em felinos domésticos na Europa, com 33% dos gatos infectados com T. taeniaeformis na Áustria.…”

Section: Discussionunclassified

Diagnóstico de Taenia taeniaeformis (Cyclophyllidea: Taeniidae) em felino doméstico em Pelotas, RS: relato de caso

Lignon¹,

Antunes²,

Padilha³

et al. 2019

Pubvet

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A Teníase causada pelo cestoda Taenia taeniaeformis, é uma enfermidade cosmopolita que acomete o intestino delgado dos felinos, sendo considerados hospedeiros definitivos. Os hospedeiros intermediários são diversos roedores, causando-lhes alterações estruturais acompanhadas de disfunção das células do fígado. Em geral, as infecções são consideradas assintomáticas, no entanto já foi relatado obstrução intestinal por esse parasito. Um caso de infecção humana já foi relatado. O presente relato descreve um caso de T. taeniaeformis diagnosticado em um gato atendido em uma clínica veterinária em Pelotas, RS, Brasil. É o primeiro caso relatado com sinais clínicos na região, além disso, não há relatos recentes sobre sua ocorrência no país. Utilizou-se a associação comercial dos princípios ativos Pamoato de pirantel (20mg/Kg) e Praziquantel (5mg/Kg). Este trabalho deve servir como alerta para Médicos Veterinários de toda a região, pois existe a possibilidade de risco clínico da teníase em gatos e a possível ocorrência em humanos.

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Cysticercus fasciolaris (Taenia taeniaeformis Larval Stage) in Urban Rats with Illustration of Histopathological Changes in the Liver

Cited by 4 publications

References 13 publications

The Larval Stage of Taenia taeniaeformis in Wistar Albino Rats with an Illustration of Biochemical and Histopathological Changes

The Larval Stage of Taenia taeniaeformis in Wistar Albino Rats with an Illustration of Biochemical and Histopathological Changes

A parasitological survey of zoonotic cestodes carried by house rats in Aswan, Egypt, reveals cryptic diversity at the molecular level

Diagnóstico de Taenia taeniaeformis (Cyclophyllidea: Taeniidae) em felino doméstico em Pelotas, RS: relato de caso

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