The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells
The swimbladder functions as a hydrostatic organ in most bony fishes, including the European eel, Anguilla anguilla. Infection by the nematode Anguillicoloides crassus impairs swimbladder function, significantly compromising the success of the eel spawning migration. Swimbladders from 32 yellow eels...
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Online Access: | http://hdl.handle.net/11392/2485042 https://doi.org/10.1017/S0031182021000032 https://www.cambridge.org/core/journals/parasitology/article/abs/impact-of-anguillicoloides-crassus-nematoda-on-european-eel-swimbladder-histopathology-and-relationship-between-neuroendocrine-and-immune-cells/EC5C49910CC272E46ABE799702EAB110 |
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ftunivferrarair:oai:iris.unife.it:11392/2485042 2024-02-11T09:55:33+01:00 The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells Dezfuli B. S. Maestri C. Lorenzoni M. Carosi A. Maynard B. J. Bosi G. Dezfuli, B. S. Maestri, C. Lorenzoni, M. Carosi, A. Maynard, B. J. Bosi, G. 2021 ELETTRONICO http://hdl.handle.net/11392/2485042 https://doi.org/10.1017/S0031182021000032 https://www.cambridge.org/core/journals/parasitology/article/abs/impact-of-anguillicoloides-crassus-nematoda-on-european-eel-swimbladder-histopathology-and-relationship-between-neuroendocrine-and-immune-cells/EC5C49910CC272E46ABE799702EAB110 eng eng info:eu-repo/semantics/altIdentifier/pmid/33557973 info:eu-repo/semantics/altIdentifier/wos/WOS:000627425700012 volume:148 issue:5 firstpage:612 lastpage:622 numberofpages:11 journal:PARASITOLOGY http://hdl.handle.net/11392/2485042 doi:10.1017/S0031182021000032 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85100726467 https://www.cambridge.org/core/journals/parasitology/article/abs/impact-of-anguillicoloides-crassus-nematoda-on-european-eel-swimbladder-histopathology-and-relationship-between-neuroendocrine-and-immune-cells/EC5C49910CC272E46ABE799702EAB110 info:eu-repo/semantics/closedAccess Cellular response eel nematode neuronal change swimbladder info:eu-repo/semantics/article 2021 ftunivferrarair https://doi.org/10.1017/S0031182021000032 2024-01-24T17:44:52Z The swimbladder functions as a hydrostatic organ in most bony fishes, including the European eel, Anguilla anguilla. Infection by the nematode Anguillicoloides crassus impairs swimbladder function, significantly compromising the success of the eel spawning migration. Swimbladders from 32 yellow eels taken from Lake Trasimeno (Central Italy) were analysed by histopathology-and electron microscopy-based techniques. Sixteen eels (50%) harboured A. crassus in their swimbladders and intensity of infection ranged from 2 to 17 adult nematodes per organ (6.9 ± 1.6, mean ± s.e.). Gross observations of heavily infected swimbladders showed opacity and histological analysis found a papillose aspect to the mucosa and hyperplasia of the lamina propria, muscularis mucosae and submucosa. Inflammation, haemorrhages, dilation of blood vessels and epithelial erosion were common in infected swimbladders. In the epithelium of parasitized swimbladders, many empty spaces and lack of apical junctional complexes were frequent among the gas gland cells. In heavily infected swimbladders, we observed hyperplasia, cellular swelling and abundant vacuolization in the apical portion of the gas gland cells. Numerous mast cells and several macrophage aggregates were noticed in the mucosal layer of infected swimbladders. We found more nervous and endocrine elements immunoreactive to a panel of six rabbit polyclonal antibodies in infected swimbladders compared to uninfected. Article in Journal/Newspaper Anguilla anguilla Università degli Studi di Ferrara: CINECA IRIS Parasitology 148 5 612 622 |
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Open Polar |
collection |
Università degli Studi di Ferrara: CINECA IRIS |
op_collection_id |
ftunivferrarair |
language |
English |
topic |
Cellular response eel nematode neuronal change swimbladder |
spellingShingle |
Cellular response eel nematode neuronal change swimbladder Dezfuli B. S. Maestri C. Lorenzoni M. Carosi A. Maynard B. J. Bosi G. The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells |
topic_facet |
Cellular response eel nematode neuronal change swimbladder |
description |
The swimbladder functions as a hydrostatic organ in most bony fishes, including the European eel, Anguilla anguilla. Infection by the nematode Anguillicoloides crassus impairs swimbladder function, significantly compromising the success of the eel spawning migration. Swimbladders from 32 yellow eels taken from Lake Trasimeno (Central Italy) were analysed by histopathology-and electron microscopy-based techniques. Sixteen eels (50%) harboured A. crassus in their swimbladders and intensity of infection ranged from 2 to 17 adult nematodes per organ (6.9 ± 1.6, mean ± s.e.). Gross observations of heavily infected swimbladders showed opacity and histological analysis found a papillose aspect to the mucosa and hyperplasia of the lamina propria, muscularis mucosae and submucosa. Inflammation, haemorrhages, dilation of blood vessels and epithelial erosion were common in infected swimbladders. In the epithelium of parasitized swimbladders, many empty spaces and lack of apical junctional complexes were frequent among the gas gland cells. In heavily infected swimbladders, we observed hyperplasia, cellular swelling and abundant vacuolization in the apical portion of the gas gland cells. Numerous mast cells and several macrophage aggregates were noticed in the mucosal layer of infected swimbladders. We found more nervous and endocrine elements immunoreactive to a panel of six rabbit polyclonal antibodies in infected swimbladders compared to uninfected. |
author2 |
Dezfuli, B. S. Maestri, C. Lorenzoni, M. Carosi, A. Maynard, B. J. Bosi, G. |
format |
Article in Journal/Newspaper |
author |
Dezfuli B. S. Maestri C. Lorenzoni M. Carosi A. Maynard B. J. Bosi G. |
author_facet |
Dezfuli B. S. Maestri C. Lorenzoni M. Carosi A. Maynard B. J. Bosi G. |
author_sort |
Dezfuli B. S. |
title |
The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells |
title_short |
The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells |
title_full |
The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells |
title_fullStr |
The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells |
title_full_unstemmed |
The impact of Anguillicoloides crassus (Nematoda) on European eel swimbladder: Histopathology and relationship between neuroendocrine and immune cells |
title_sort |
impact of anguillicoloides crassus (nematoda) on european eel swimbladder: histopathology and relationship between neuroendocrine and immune cells |
publishDate |
2021 |
url |
http://hdl.handle.net/11392/2485042 https://doi.org/10.1017/S0031182021000032 https://www.cambridge.org/core/journals/parasitology/article/abs/impact-of-anguillicoloides-crassus-nematoda-on-european-eel-swimbladder-histopathology-and-relationship-between-neuroendocrine-and-immune-cells/EC5C49910CC272E46ABE799702EAB110 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/33557973 info:eu-repo/semantics/altIdentifier/wos/WOS:000627425700012 volume:148 issue:5 firstpage:612 lastpage:622 numberofpages:11 journal:PARASITOLOGY http://hdl.handle.net/11392/2485042 doi:10.1017/S0031182021000032 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85100726467 https://www.cambridge.org/core/journals/parasitology/article/abs/impact-of-anguillicoloides-crassus-nematoda-on-european-eel-swimbladder-histopathology-and-relationship-between-neuroendocrine-and-immune-cells/EC5C49910CC272E46ABE799702EAB110 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1017/S0031182021000032 |
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Parasitology |
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148 |
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