Dicrocoeliidae Family: Major Species Causing Veterinary Diseases

Manga-González, M. Yolanda; Ferreras, M.C.

doi:10.1007/978-3-030-18616-6_10

Cited by 10 publications

(9 citation statements)

References 133 publications

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“…It was first described in 1803 in Europe and due to the movement of infected animals [ 54 ] an endemic situation is now seen in numerous countries of Europe, Asia, America and North Africa. The distribution of the other Dicrocoelium species, Dicrocoelium hospes is limited to some regions in Africa [ 55 ] and Dicrocoelium chinesis occurs in many regions of Asia in ruminants but has also been found in Sika deer in Europe [ 56 ]. However, other details about these trematode species are substantially similar to D. dendriticum .…”

Section: Dicrocoelium Spp (Lancet Flukes)mentioning

confidence: 99%

“…The adult trematodes live in the gall bladder and the bile ducts of the mammalian definitive hosts and shed their embryonated eggs via the bile to the intestine and from there mix with the faeces into the environment [ 56 ]. Snails ingest the eggs when feeding on mammalian faeces and inside the digestive tract of the mollusc, the miracidium hatches subsequently out of the eggshell (most likely due to physical-chemical stimuli [ 58 , 59 ]).…”

Section: Dicrocoelium Spp (Lancet Flukes)mentioning

confidence: 99%

“…The cercariae migrate to the respiratory tract of the snail, where they are coated with slime before being eliminated through respiratory movements [ 57 ]. Various species of ants of the family Formicidae ingest these cercariae-containing slime balls [ 56 ]. Inside the ant, the cercariae lose their tails and at least one of them reaches the suboesophageal ganglion.…”

Section: Dicrocoelium Spp (Lancet Flukes)mentioning

confidence: 99%

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Chronic Wasting Due to Liver and Rumen Flukes in Sheep

Kahl

Samson‐Himmelstjerna

Krücken

et al. 2021

Animals

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Grazing sheep and goats are constantly exposed to helminth infections in many parts of the world, including several trematode species that causes a range of clinical diseases. The clinical picture of flukes is dependent upon the organs in which they develop and the tissues they damage within the respective organs. Accordingly, infections with the common liver fluke Fasciola hepatica, which, as juvenile worm migrates through the liver parenchyma for several weeks, may be associated with hepatic disorders such as impairment of carbohydrate, protein and fat metabolism, followed by chronic wasting. In contrast, the lancet fluke Dicrocoelium dendriticum, which does not exhibit tissue migration and thus does not lead to major tissue damage and bleeding, also does not lead to significant clinical symptoms. Rumen flukes such as Cotylophoron daubneyi cause catarrhal inflammation during their migration through the intestinal and abomasal epithelium during its juvenile stages. Depending on the infection intensity this may result in a range of clinical symptoms including diarrhoea, inappetence or emaciation. In this review, we aim to provide an update on the current knowledge on flukes particularly concerning the clinical relevance of the most important fluke species in sheep.

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Section: Dicrocoelium Spp (Lancet Flukes)mentioning

confidence: 99%

Section: Dicrocoelium Spp (Lancet Flukes)mentioning

confidence: 99%

Section: Dicrocoelium Spp (Lancet Flukes)mentioning

confidence: 99%

See 1 more Smart Citation

Chronic Wasting Due to Liver and Rumen Flukes in Sheep

Kahl

Samson‐Himmelstjerna

Krücken

et al. 2021

Animals

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“…Within the life span of D. dentriticum, parasite flukes migrate through to the biliary duct system without causing pathological alterations in gut wall and liver capsule. The basic pathological alterations in the liver tissue are caused by the mechanical effect of migration through bile ducts and toxic metabolites secreted by the flukes (3,8). Highly pathogenic infections have been observed in humans who inhabit in endemic areas with neurological symptoms and functional hepatobiliary disorders (9,10).…”

Section: Research Articlementioning

confidence: 99%

Evaluation of albendazole treatment on coagulation profile in sheep naturally infected with Dicrocoelium dentriticum

Erdoğan

Gültekin

Ural

et al. 2019

Veterinary Journal of Mehmet Akif Ersoy University

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The aim of the present study was to evaluate the selected coagulation profile parameters in sheep naturally infected with Dicrocoelium dentriticum and effects of albendazole treatment. For this reason, 34 merino sheep, aged between 1 and 3 years, naturally infected with Dicrocoelium dentriticum were enrolled in the present study. Plasma and stool samples were withdrawn from each animal before and 10 days after treatment and egg per gram feces were evaluated with Mc Master technique. Prothrombin time, activated partial thromboplastin time and fibrinogen levels were determined by semiautomated coagulometer by using commercial test kits before and 10 days after treatment. Noticeable clinical recovery was detected in all animals after albendazole treatment. There were significant differences on prothrombin time and fibrinogen levels (p<0.001) between treatment intervals. In conclusion, this is the first study for selected coagulation parameters before and after albendazole treatment for ovine patients naturally infected with Dicrocoelium dentriticum. It should be mentioned that the treatment resulted in lower prothrombin time and fibrinogen values, suggesting that dicrocoeliasis might alter coagulation profile and possibly induce an acute phase response. Furthermore, the clinical relevance in ovine medicine and related results possibly interacting to human medicine has to be determined by future studies. Dicrocoelium dentriticum ile doğal enfekte koyunlarda albendazolün pıhtılaşma profili üzerine olan etkisinin değerlendirilmesi ÖZ Bu çalışmanın amacı, Dicrocoelium dentriticum ile doğal olarak enfekte koyunlarda albendazolün seçili pıhtılaşma parametreleri üzerine etkilerinin değerlendirilmesidir. Bu amaçla çalışmaya Dicrocoelium dentriticum ile doğal enfekte 3-6 yaşları arasındaki 34 merinos ırkı koyun dahil edildi. Her hayvandan sağaltım öncesi ve sağaltımdan 10 gün sonra plazma ve dışkı örnekleri alınarak gram dışkıdaki yumurta saçılımı Mc Master tekniği ile değerlendirildi. Protrombin zamanı, aktive edilmiş parsiyel tromboplastin zamanı ve fibrinojen düzeyleri, sağaltım öncesi ve sağaltımdan 10 gün sonra ticari test kitleri kullanılarak yarı otomatik koagülometre ile belirlendi. Albendazol uygulamasından sonra tüm hayvanlarda belirgin klinik iyileşme tespit edildi. Protrombin zamanı ve fibrinojen düzeyleri arasında sağaltım öncesi ve sonrasında önemli farklılıklar (p <0.001) elde edildi. Sonuç olarak bu çalışma Dicrocoelium dentriticum ile doğal enfekte koyunlarda albendazolün sağaltımı öncesi ve sonrasında seçili pıhtılaşma parametreleri üzerine olan etkisinin incelendiği ilk çalışmadır. Çalışmaya göre elde edilen daha düşük protrombin zamanı ve fibrinojen seviyeleri düşünüldüğünde dikrokoliyazisin pıhtılaşma profilini değiştirebileceği ve olası akut faz yanıtını tetikleyebileceği akla getirilmelidir. Ayrıca, küçükbaş alanındaki klinik önemi ve beşeri hekimlikteki olası ilişkili sonuçlar gelecekteki çalışmalarla belirlenmelidir.

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“…The life cycle of this parasite requires two invertebrate intermediate hosts: one being a xerophilic terrestrial snail (of various genera such as Helicella, Zebrina or Cernuella), and the other an ant (mainly of the genus Formica) [25].…”

Section: Introductionmentioning

confidence: 99%

Constraints of using historical data for modelling the spatial distribution of helminth parasites in ruminants

et al. 2021

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Dicrocoelium dendriticum is a trematode that infects ruminant livestock and requires two different intermediate hosts to complete its lifecycle. Modelling the spatial distribution of this parasite can help to improve its management in higher risk regions. The aim of this research was to assess the constraints of using historical data sets when modelling the spatial distribution of helminth parasites in ruminants. A parasitological data set provided by CREMOPAR (Napoli, Italy) and covering most of Italy was used in this paper. A baseline model (Random Forest, VECMAP®) using the entire data set was first used to determine the minimal number of data points needed to build a stable model. Then, annual distribution models were computed and compared with the baseline model. The best prediction rate and statistical output were obtained for 2012 and the worst for 2016, even though the sample size of the former was significantly smaller than the latter. We discuss how this may be explained by the fact that in 2012, the samples were more evenly geographically distributed, whilst in 2016 most of the data were strongly clustered. It is concluded that the spatial distribution of the input data appears to be more important than the actual sample size when computing species distribution models. This is often a major issue when using historical data to develop spatial models. Such data sets often include sampling biases and large geographical gaps. If this bias is not corrected, the spatial distribution model outputs may display the sampling effort rather than the real species distribution.

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Dicrocoeliidae Family: Major Species Causing Veterinary Diseases

Cited by 10 publications

References 133 publications

Chronic Wasting Due to Liver and Rumen Flukes in Sheep

Chronic Wasting Due to Liver and Rumen Flukes in Sheep

Evaluation of albendazole treatment on coagulation profile in sheep naturally infected with Dicrocoelium dentriticum

Constraints of using historical data for modelling the spatial distribution of helminth parasites in ruminants

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