Pathological effects of Eustrongylides sp. larvae (Dioctophymatidae) infection in freshwater fish, Glossogobius giuris (Ham.) with special reference to ovaries

Kaur, Pinky; Shrivastav, Rekha; Qureshi, T. A.

doi:10.1007/s12639-012-0173-5

Cited by 10 publications

(5 citation statements)

References 19 publications

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“…Infections of Eustrongylides sp. larvae within the ovaries of tank gobies, Glossogobius giuris F. Hamilton, 1822, have been reported to induce necrosis, resulting in a decrease in yolk formation, and, the disappearance of vitellogenic oocytes [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Histopathology and the inflammatory response of European perch, Perca fluviatilis muscle infected with Eustrongylides sp. (Nematoda)

et al. 2015

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BackgroundThe European perch, Perca fluviatilis L. is a common paratenic host of dioctophymatid nematodes belonging to the genus Eustrongylides. In this host, once infected oligochaetes, which serve as the first intermediate host, are ingested, Eustrongylides migrates through the intestine and is frequently encountered within the musculature, free within the body cavity, or encapsulated on the viscera. The current study details the first Italian record of Eustrongylides sp. with larvae reported in the muscle of P. fluviatilis.MethodsUninfected and nematode-infected muscle tissues of perch were fixed and prepared for histological evaluation and electron microscopy. Some sections were subjected to an indirect immunohistochemical method using anti-PCNA, anti-piscidin 3 and anti-piscidin 4 antibodies.ResultsA total of 510 P. fluviatilis (TL range 15–25 cm) from Lake Trasimeno, Perugia were post-mortemed; 31 individuals had encysted nematode larvae within their musculature (1–2 worms fish−1). Histologically, larvae were surrounded by a capsule with an evident acute inflammatory reaction. Muscle degeneration and necrosis extending throughout the sarcoplasm, sarcolemmal basal lamina, endomysial connective tissue cells and capillaries was frequently observed. Within the encapsulating reaction, macrophage aggregates (MAs) were seen. Immunohistochemical staining with the proliferating cell nuclear antigen (PCNA) revealed numerous PCNA-positive cells within the thickness of the capsule and in the immediate vicinity surrounding Eustrongylides sp. larvae (i.e. fibroblasts and satellite cells), suggesting a host response had been initiated to repair the nematode-damaged muscle. Mast cells (MCs) staining positively for piscidin 3, were demonstrated for the first time in response to a muscle-infecting nematode. The piscidin 3 positive MC’s were seen principally in the periphery of the capsule surrounding the Eustrongylides sp. larva.ConclusionsA host tissue response to Eustrongylides sp. larvae infecting the musculature of P. fluviatilis was observed. Numerous fibroblasts, MAs and MCs were seen throughout the thick fibroconnectival layer of the capsule enclosing larvae. PCNA positive cells within the capsule suggest that host repair of nematode damaged muscle does occur, while the presence of the antimicrobial peptide piscidin 3 is shown for the first time. This is first report of Eustrongylides sp. in an Italian population of P. fluviatilis.

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Section: Introductionmentioning

confidence: 99%

Histopathology and the inflammatory response of European perch, Perca fluviatilis muscle infected with Eustrongylides sp. (Nematoda)

et al. 2015

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“…Signs of gonade necrosis, egg lysis and decreased yolk formation were noted. A decrease in the gonadosomatic index and fertility is noticeable in infected fish in comparison to uninfected ones (Kaur et al, 2013). The blood of predatory fish infected with eustrongylidosis had a decrease of hemoglobin, erythrocytes and lymphocytes and an increase of leukocytes, rod and segmental neutrophils, monocytes (Honcharov, 2019c).…”

Section: Fishesmentioning

confidence: 98%

Eustrongylides (Nematoda:Dioctophymatidae): epizootology and special characteristics of the development biology

et al. 2022

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Summary Eustrongylides spp. are the nematodes from the Dioctophymatidae family which are potentially dangerous for the mammal’s heath. The first aim of the present research is to describe the biology, developmental characteristics and epizootology of the Eustrongylides spp. nematode. Eustrongylidosis is a parasitic disease commonly occurring in the countries with temperate continental, tropical and subtropical climate. The Eustrongylides spp. parasites are biohelmints with a complex life cycle. The development of the nematodes takes place in the aquatic environment and includes a vast range of intermediate, accidental and definitive hosts. It has also been reported in humans. The second aim of the research is to describe the clinical and pathomorphological changes in organs and tissues of the infected animals, and influence of biotic and abiotic factors on formation of the natural centers of spreading of eustrongylidosis; diagnostics of eustrongylidosis.

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“…(nematodes) that infect mainly the gonads of marine fishes [65][66][67][68] and freshwater fish goby (Glossogobius giuris) [69], respectively. These gonad-infecting nematodes infect both the testes and ovaries of their hosts, wherein heavy infection may result to reduced fecundity or even total castration and further decline in the population of the host fish [69,70]. Furthermore, the most thoroughly documented example of endocrine disruption in wild fish is in roach (Rutilus rutilus), and it is conceivable that this disruption is not only due to chemical activity but also to cestode parasites such as Ligula intestinalis or species of the phylum Microspora.…”

Section: Parasitic Threats To Food Security and Sustainabilitymentioning

confidence: 99%

Updates on Aquatic Parasites in Fisheries: Implications to Food Safety, Food Security and Environmental Protection

Quiazon¹

2015

J Coast Zone Manag

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Journal of Coastal Zone Management AbstractCheap protein sources from fishery products come from both capture fishery and aquaculture industries. Despite the available technologies that help increase wild catch and aquaculture production, our food security is being threatened by several factors including parasitic infections. Zoonotic parasites infecting our fishery products are one of the several concerns for our food safety. Among these include the infections with the nematode Anisakis in marine fishes and cephalopods causing human anisakiasis and/or allergy-associated health risks, the nematode Gnathostoma causing gnathostomiasis, and food poisoning due to the myxozoan infection of the genus Kudoa. On the other hand, the increasing human population, dwindling fish catch from the wild, degradation of aquatic environment, and declining or slow growth of aquaculture sector due to parasitic diseases are all posing global threats to the security and sustainability of fish supplies. The wild fish populations are affected by the parasitic diseases that directly and indirectly affect fish reproduction, growth, and survival, whereas intensifications of aquaculture operations cause fish health problems associated to parasitic diseases resulting to decline in production. Despite these negative impacts of parasites, there are several parasite groups that are used as biological indicators for food chain structure, heavy metal contamination, environmental pollutions and fish stock assessment (i.e., nematodes Anisakis, Hysterothylacium, Anguillicola, Spirophilometra, Raphidascaris, and Philometra; acanthocephalans Pomphorhynchus, Serrasentis, and Acanthocephalus; cestodes Bothriocephalus, Monobothrium, and Ligula; monogenean Pseudorhabdosynochus; and digenean Didymodiclinus), as well as reducer of heavy metal accumulation in the body of their host fish (i.e., acanthocephalans Pomphorhynchus and Acanthocephalus). The use of these parasites for proper management of fishery resources can be of help in addressing food safety, fish security, and food sustainability, while at the same time managing our fishery resources. As we are addressing these global issues, these parasites that we are considering as threats can be of useful value to attain sustainable development.

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Pathological effects of Eustrongylides sp. larvae (Dioctophymatidae) infection in freshwater fish, Glossogobius giuris (Ham.) with special reference to ovaries

Cited by 10 publications

References 19 publications

Histopathology and the inflammatory response of European perch, Perca fluviatilis muscle infected with Eustrongylides sp. (Nematoda)

Histopathology and the inflammatory response of European perch, Perca fluviatilis muscle infected with Eustrongylides sp. (Nematoda)

Eustrongylides (Nematoda:Dioctophymatidae): epizootology and special characteristics of the development biology

Updates on Aquatic Parasites in Fisheries: Implications to Food Safety, Food Security and Environmental Protection

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