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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ftpubmed:oai:pubmedcentral.nih.gov:3969061 2023-05-15T13:28:00+02:00 Enteric neuroplasticity in seawater-adapted European eel (Anguilla anguilla) Sorteni, C Clavenzani, P De Giorgio, R Portnoy, O Sirri, R Mordenti, O Di Biase, A Parmeggiani, A Menconi, V Chiocchetti, R 2014-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3969061/ http://www.ncbi.nlm.nih.gov/pubmed/24433383 https://doi.org/10.1111/joa.12131 en eng Blackwell Publishing Ltd http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3969061/ http://www.ncbi.nlm.nih.gov/pubmed/24433383 http://dx.doi.org/10.1111/joa.12131 © 2013 Anatomical Society Research Articles Text 2014 ftpubmed https://doi.org/10.1111/joa.12131 2016-02-07T01:01:51Z 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. Text Anguilla anguilla PubMed Central (PMC) Journal of Anatomy 224 2 180 191 |
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Research Articles Sorteni, C Clavenzani, P De Giorgio, R Portnoy, O Sirri, R Mordenti, O Di Biase, A Parmeggiani, A Menconi, V Chiocchetti, R Enteric neuroplasticity in seawater-adapted European eel (Anguilla anguilla) |
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Research Articles |
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. |
format |
Text |
author |
Sorteni, C Clavenzani, P De Giorgio, R Portnoy, O Sirri, R Mordenti, O Di Biase, A Parmeggiani, A Menconi, V Chiocchetti, R |
author_facet |
Sorteni, C Clavenzani, P De Giorgio, R Portnoy, O Sirri, R Mordenti, O Di Biase, A Parmeggiani, A Menconi, V Chiocchetti, R |
author_sort |
Sorteni, C |
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) |
publisher |
Blackwell Publishing Ltd |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3969061/ http://www.ncbi.nlm.nih.gov/pubmed/24433383 https://doi.org/10.1111/joa.12131 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3969061/ http://www.ncbi.nlm.nih.gov/pubmed/24433383 http://dx.doi.org/10.1111/joa.12131 |
op_rights |
© 2013 Anatomical Society |
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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1766401633434992640 |