Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla)
European eels live most of their lives in freshwater until spawning migration to the Sargasso Sea. During seawater adaptation, eels modify their physiology, and their digestive system adapts to the new environment, drinking salt water to compensate for the continuous water loss. In that period, eels...
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Online Access: | http://hdl.handle.net/11585/182521 https://doi.org/10.1111/joa.12131 |
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ftunibolognairis:oai:cris.unibo.it:11585/182521 2024-05-12T07:52:59+00:00 Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) SORTENI, CATERINA CLAVENZANI, PAOLO DE GIORGIO, ROBERTO SIRRI, RUBINA MORDENTI, OLIVIERO DI BIASE, ANDREA PARMEGGIANI, ALBAMARIA MENCONI, VASCO CHIOCCHETTI, ROBERTO Sorteni C Clavenzani P De Giorgio R Sirri R Mordenti O Di Biase A Parmeggiani A Menconi V Chiocchetti R 2014 ELETTRONICO http://hdl.handle.net/11585/182521 https://doi.org/10.1111/joa.12131 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000329747000009 volume:224 issue:2 firstpage:180 lastpage:191 numberofpages:12 journal:JOURNAL OF ANATOMY http://hdl.handle.net/11585/182521 doi:10.1111/joa.12131 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84892541884 eel neuroplasticity enetric nervous system info:eu-repo/semantics/article 2014 ftunibolognairis https://doi.org/10.1111/joa.12131 2024-04-12T00:25:36Z European eels live most of their lives in freshwater until spawning migration to the Sargasso Sea. During seawater adaptation, eels modify their physiology, and their digestive system adapts to the new environment, drinking salt water to compensate for the continuous water loss. In that period, eels stop feeding until spawning. Thus, the eel represents a unique model to understand the adaptive changes of the enteric nervous system (ENS) to modified salinity and starvation. To this purpose, we assessed and compared the enteric neuronal density in the cranial portion of the intestine of freshwater eels (control), lagoon eels captured in brackish water before their migration to the Sargasso Sea (T0), and starved seawater eels hormonally induced to sexual maturity (T18; 18 weeks of starvation and treatment with standardized carp pituitary extract). Furthermore, we analyzed the modification of intestinal neuronal density of hormonally untreated eels during prolonged starvation (10 weeks) in seawater and freshwater. The density of myenteric (MP) and submucosal plexus (SMP) HuC/D-immunoreactive (Hu-IR) neurons was assessed in wholemount preparations and cryosections. The number of MP and SMP HuC/D-IR neurons progressively increased from the freshwater to the salty water habitat (control > T0 > T18; P < 0.05). Compared with freshwater eels, the number of MP and SMP HuC/ D-IR neurons significantly increased (P < 0.05) in the intestine of starved untreated salt water eels. In conclusion, high salinity evokes enteric neuroplasticity as indicated by the increasing number of HuC/D-IR MP and SMP neurons, a mechanism likely contributing to maintaining the body homeostasis of this fish in extreme conditions. Article in Journal/Newspaper Anguilla anguilla IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Journal of Anatomy 224 2 180 191 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
eel neuroplasticity enetric nervous system |
spellingShingle |
eel neuroplasticity enetric nervous system SORTENI, CATERINA CLAVENZANI, PAOLO DE GIORGIO, ROBERTO SIRRI, RUBINA MORDENTI, OLIVIERO DI BIASE, ANDREA PARMEGGIANI, ALBAMARIA MENCONI, VASCO CHIOCCHETTI, ROBERTO Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) |
topic_facet |
eel neuroplasticity enetric nervous system |
description |
European eels live most of their lives in freshwater until spawning migration to the Sargasso Sea. During seawater adaptation, eels modify their physiology, and their digestive system adapts to the new environment, drinking salt water to compensate for the continuous water loss. In that period, eels stop feeding until spawning. Thus, the eel represents a unique model to understand the adaptive changes of the enteric nervous system (ENS) to modified salinity and starvation. To this purpose, we assessed and compared the enteric neuronal density in the cranial portion of the intestine of freshwater eels (control), lagoon eels captured in brackish water before their migration to the Sargasso Sea (T0), and starved seawater eels hormonally induced to sexual maturity (T18; 18 weeks of starvation and treatment with standardized carp pituitary extract). Furthermore, we analyzed the modification of intestinal neuronal density of hormonally untreated eels during prolonged starvation (10 weeks) in seawater and freshwater. The density of myenteric (MP) and submucosal plexus (SMP) HuC/D-immunoreactive (Hu-IR) neurons was assessed in wholemount preparations and cryosections. The number of MP and SMP HuC/D-IR neurons progressively increased from the freshwater to the salty water habitat (control > T0 > T18; P < 0.05). Compared with freshwater eels, the number of MP and SMP HuC/ D-IR neurons significantly increased (P < 0.05) in the intestine of starved untreated salt water eels. In conclusion, high salinity evokes enteric neuroplasticity as indicated by the increasing number of HuC/D-IR MP and SMP neurons, a mechanism likely contributing to maintaining the body homeostasis of this fish in extreme conditions. |
author2 |
Sorteni C Clavenzani P De Giorgio R Sirri R Mordenti O Di Biase A Parmeggiani A Menconi V Chiocchetti R |
format |
Article in Journal/Newspaper |
author |
SORTENI, CATERINA CLAVENZANI, PAOLO DE GIORGIO, ROBERTO SIRRI, RUBINA MORDENTI, OLIVIERO DI BIASE, ANDREA PARMEGGIANI, ALBAMARIA MENCONI, VASCO CHIOCCHETTI, ROBERTO |
author_facet |
SORTENI, CATERINA CLAVENZANI, PAOLO DE GIORGIO, ROBERTO SIRRI, RUBINA MORDENTI, OLIVIERO DI BIASE, ANDREA PARMEGGIANI, ALBAMARIA MENCONI, VASCO CHIOCCHETTI, ROBERTO |
author_sort |
SORTENI, CATERINA |
title |
Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) |
title_short |
Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) |
title_full |
Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) |
title_fullStr |
Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) |
title_full_unstemmed |
Enteric neuroplasticity in seawater-adapted European eel “(Anguilla anguilla) |
title_sort |
enteric neuroplasticity in seawater-adapted european eel “(anguilla anguilla) |
publishDate |
2014 |
url |
http://hdl.handle.net/11585/182521 https://doi.org/10.1111/joa.12131 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000329747000009 volume:224 issue:2 firstpage:180 lastpage:191 numberofpages:12 journal:JOURNAL OF ANATOMY http://hdl.handle.net/11585/182521 doi:10.1111/joa.12131 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84892541884 |
op_doi |
https://doi.org/10.1111/joa.12131 |
container_title |
Journal of Anatomy |
container_volume |
224 |
container_issue |
2 |
container_start_page |
180 |
op_container_end_page |
191 |
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1798839655991345152 |