Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.)
The European eel, Anguilla anguilla, is a major warm water fish species cultured in North and South Europe. A total of 140 eels measuring 28–92 cm in total length (70.9 ± 14.7, mean ± SD cm), collected on 10 separate occasions during October 2005 to May 2006 from the Comacchio lagoons, were examined...
Published in: | Aquaculture |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2009
|
Subjects: | |
Online Access: | http://hdl.handle.net/11392/1377412 https://doi.org/10.1016/j.aquaculture.2009.07.029 |
id |
ftunivferrarair:oai:iris.unife.it:11392/1377412 |
---|---|
record_format |
openpolar |
spelling |
ftunivferrarair:oai:iris.unife.it:11392/1377412 2024-02-11T09:55:30+01:00 Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) SAYYAF DEZFULI, Bahram GIARI, Luisa C. Szekely G. Giovinazzo K. Hills SAYYAF DEZFULI, Bahram C., Szekely G., Giovinazzo K., Hill Giari, Luisa 2009 STAMPA http://hdl.handle.net/11392/1377412 https://doi.org/10.1016/j.aquaculture.2009.07.029 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000271345500001 volume:296 firstpage:1 lastpage:6 numberofpages:6 journal:AQUACULTURE http://hdl.handle.net/11392/1377412 doi:10.1016/j.aquaculture.2009.07.029 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-70349211576 eel intestine cellular response endoparasitic worms info:eu-repo/semantics/article 2009 ftunivferrarair https://doi.org/10.1016/j.aquaculture.2009.07.029 2024-01-24T17:38:58Z The European eel, Anguilla anguilla, is a major warm water fish species cultured in North and South Europe. A total of 140 eels measuring 28–92 cm in total length (70.9 ± 14.7, mean ± SD cm), collected on 10 separate occasions during October 2005 to May 2006 from the Comacchio lagoons, were examined. Ninety-six (69%) harbored parasitic helminths. Of infected eels, 55% contained 3 digenean species, 2% a single cestode species, and 5% 2 nematode species. Intestinal pathology associated with digenean and cestode infection was minimal. The main damage caused by digeneans was destruction of the mucosal epithelium of the villi. Necrosis and degeneration of epithelial cells were also evident. At the site of digenean infection, a high number of rodlet cells (RCs) and mucous cells were observed in the epithelium, with both types of cells exhibiting discharge activity. The number of RCs per area (30.000 µm2) in parasitized A. anguilla (10.83 ± 7.08, mean ± SD, n = 40) was significantly greater than in uninfected (2.18 ± 2.15, mean ± SD, n = 40, t-test, P<0.01). The majority of RCs in both infected and uninfected intestine were mature cells and presented the typical cell cortex. The number of mucous cells per area (30.000 µm2) was significantly higher in intestine of parasitized eels (70.58 ± 17.95, mean ± SD, n = 40) than in uninfected (27.18 ± 5.58, mean ± SD, n = 40, t-test, P<0.01). Severe intestinal damage was caused by Contracaecum rudolphii A larvae encysted within the tunica propria and over the external surface of the stomach and intestine. At these sites, conspicuous granulomas showing chronic inflammatory responses characterized by infiltration of mast cells and fibroblasts were observed. Article in Journal/Newspaper Anguilla anguilla European eel Università degli Studi di Ferrara: CINECA IRIS Aquaculture 296 1-2 1 6 |
institution |
Open Polar |
collection |
Università degli Studi di Ferrara: CINECA IRIS |
op_collection_id |
ftunivferrarair |
language |
English |
topic |
eel intestine cellular response endoparasitic worms |
spellingShingle |
eel intestine cellular response endoparasitic worms SAYYAF DEZFULI, Bahram GIARI, Luisa C. Szekely G. Giovinazzo K. Hills Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) |
topic_facet |
eel intestine cellular response endoparasitic worms |
description |
The European eel, Anguilla anguilla, is a major warm water fish species cultured in North and South Europe. A total of 140 eels measuring 28–92 cm in total length (70.9 ± 14.7, mean ± SD cm), collected on 10 separate occasions during October 2005 to May 2006 from the Comacchio lagoons, were examined. Ninety-six (69%) harbored parasitic helminths. Of infected eels, 55% contained 3 digenean species, 2% a single cestode species, and 5% 2 nematode species. Intestinal pathology associated with digenean and cestode infection was minimal. The main damage caused by digeneans was destruction of the mucosal epithelium of the villi. Necrosis and degeneration of epithelial cells were also evident. At the site of digenean infection, a high number of rodlet cells (RCs) and mucous cells were observed in the epithelium, with both types of cells exhibiting discharge activity. The number of RCs per area (30.000 µm2) in parasitized A. anguilla (10.83 ± 7.08, mean ± SD, n = 40) was significantly greater than in uninfected (2.18 ± 2.15, mean ± SD, n = 40, t-test, P<0.01). The majority of RCs in both infected and uninfected intestine were mature cells and presented the typical cell cortex. The number of mucous cells per area (30.000 µm2) was significantly higher in intestine of parasitized eels (70.58 ± 17.95, mean ± SD, n = 40) than in uninfected (27.18 ± 5.58, mean ± SD, n = 40, t-test, P<0.01). Severe intestinal damage was caused by Contracaecum rudolphii A larvae encysted within the tunica propria and over the external surface of the stomach and intestine. At these sites, conspicuous granulomas showing chronic inflammatory responses characterized by infiltration of mast cells and fibroblasts were observed. |
author2 |
SAYYAF DEZFULI, Bahram C., Szekely G., Giovinazzo K., Hill Giari, Luisa |
format |
Article in Journal/Newspaper |
author |
SAYYAF DEZFULI, Bahram GIARI, Luisa C. Szekely G. Giovinazzo K. Hills |
author_facet |
SAYYAF DEZFULI, Bahram GIARI, Luisa C. Szekely G. Giovinazzo K. Hills |
author_sort |
SAYYAF DEZFULI, Bahram |
title |
Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) |
title_short |
Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) |
title_full |
Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) |
title_fullStr |
Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) |
title_full_unstemmed |
Inflammatory response to parasitic helminths in the digestive tract of Anguilla anguilla (L.) |
title_sort |
inflammatory response to parasitic helminths in the digestive tract of anguilla anguilla (l.) |
publishDate |
2009 |
url |
http://hdl.handle.net/11392/1377412 https://doi.org/10.1016/j.aquaculture.2009.07.029 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000271345500001 volume:296 firstpage:1 lastpage:6 numberofpages:6 journal:AQUACULTURE http://hdl.handle.net/11392/1377412 doi:10.1016/j.aquaculture.2009.07.029 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-70349211576 |
op_doi |
https://doi.org/10.1016/j.aquaculture.2009.07.029 |
container_title |
Aquaculture |
container_volume |
296 |
container_issue |
1-2 |
container_start_page |
1 |
op_container_end_page |
6 |
_version_ |
1790596782404665344 |