Distribution of somatostatin immunoreactive neurons and fibres in the central nervous system of a chondrostean, the Siberian sturgeon (Acipenser baeri).
Identifieur interne : 000244 ( Ncbi/Merge ); précédent : 000243; suivant : 000245Distribution of somatostatin immunoreactive neurons and fibres in the central nervous system of a chondrostean, the Siberian sturgeon (Acipenser baeri).
Auteurs : Fátima Adrio [Espagne] ; Ram N Anad N ; Isabel Rodríguez-MoldesSource :
- Brain research [ 0006-8993 ] ; 2008.
English descriptors
- KwdEn :
- Animals, Axons (metabolism), Brain (anatomy & histology), Brain (metabolism), Brain Mapping, Evolution, Molecular, Fishes (anatomy & histology), Fishes (metabolism), Hypothalamo-Hypophyseal System (anatomy & histology), Hypothalamo-Hypophyseal System (metabolism), Hypothalamus (anatomy & histology), Hypothalamus (metabolism), Immunohistochemistry, Median Eminence (anatomy & histology), Median Eminence (metabolism), Neural Pathways (anatomy & histology), Neural Pathways (metabolism), Neurons (metabolism), Phylogeny, Preoptic Area (anatomy & histology), Preoptic Area (metabolism), Somatostatin (metabolism), Species Specificity, Spinal Cord (anatomy & histology), Spinal Cord (metabolism).
- MESH :
- chemical , metabolism : Somatostatin.
- anatomy & histology : Brain, Fishes, Hypothalamo-Hypophyseal System, Hypothalamus, Median Eminence, Neural Pathways, Preoptic Area, Spinal Cord.
- metabolism : Axons, Brain, Fishes, Hypothalamo-Hypophyseal System, Hypothalamus, Median Eminence, Neural Pathways, Neurons, Preoptic Area, Spinal Cord.
- Animals, Brain Mapping, Evolution, Molecular, Immunohistochemistry, Phylogeny, Species Specificity.
Abstract
Somatostatin (SOM) is a neuropeptide that is widely distributed in the central nervous system of vertebrates. Two isoforms of somatostatin (SS1 and SS2) have been characterized in sturgeon and in situ hybridisation studies in the sturgeon brain have demonstrated that mRNAs of the two somatostatin precursors (PSS1 and PSS2) are differentially expressed in neurons [Trabucchi, M., Tostivint, H., Lihrmann, I., Sollars, C., Vallarino, M., Dores, R.M., Vaudry, H., 2002. Polygenic expression of somatostatin in the sturgeon Acipenser transmontanus: molecular cloning and distribution of the mRNAs encoding two somatostatin precursors. J. Comp. Neurol. 443, 332-345.]. However, neither the morphology of somatostatinergic neurons nor the patterns of innervation have yet been characterized. To gain further insight into the evolution of this system in primitive bony fishes, we studied the distribution of somatostatin-immunoreactive (SOM-ir) cells and fibres in the brain of the Siberian sturgeon (Acipenser baeri). Most SOM-ir cells were found in the preoptic area and hypothalamus and abundant SOM-ir fibres coursed along the hypothalamic floor towards the median eminence, suggesting a hypophysiotrophic role for SOM in sturgeon. In addition, SOM-ir cells and fibres were observed in extrahypothalamic regions such as the telencephalon thalamus, rhombencephalon and spinal cord, which also suggests neuromodulatory and/or neurotransmitter functions for this peptide. Overall there was a good correlation between the distribution of SOM-ir neurons throughout the brain of A. baeri and that of PSS1 mRNA in Acipenser transmontanus. Comparative analysis of the results with those obtained in other groups of fishes and tetrapods indicates that widespread distribution of this peptide in the brain is shared by early vertebrate lines and that the general organization of the somatostatinergic systems has been well-conserved during evolution.
DOI: 10.1016/j.brainres.2008.03.002
PubMed: 18400215
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Eminence</term><term>Neural Pathways</term><term>Preoptic Area</term><term>Spinal Cord</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Axons</term><term>Brain</term><term>Fishes</term><term>Hypothalamo-Hypophyseal System</term><term>Hypothalamus</term><term>Median Eminence</term><term>Neural Pathways</term><term>Neurons</term><term>Preoptic Area</term><term>Spinal Cord</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Brain Mapping</term><term>Evolution, Molecular</term><term>Immunohistochemistry</term><term>Phylogeny</term><term>Species Specificity</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Somatostatin (SOM) is a neuropeptide that is widely distributed in the central nervous system of vertebrates. Two isoforms of somatostatin (SS1 and SS2) have been characterized in sturgeon and in situ hybridisation studies in the sturgeon brain have demonstrated that mRNAs of the two somatostatin precursors (PSS1 and PSS2) are differentially expressed in neurons [Trabucchi, M., Tostivint, H., Lihrmann, I., Sollars, C., Vallarino, M., Dores, R.M., Vaudry, H., 2002. Polygenic expression of somatostatin in the sturgeon Acipenser transmontanus: molecular cloning and distribution of the mRNAs encoding two somatostatin precursors. J. Comp. Neurol. 443, 332-345.]. However, neither the morphology of somatostatinergic neurons nor the patterns of innervation have yet been characterized. To gain further insight into the evolution of this system in primitive bony fishes, we studied the distribution of somatostatin-immunoreactive (SOM-ir) cells and fibres in the brain of the Siberian sturgeon (Acipenser baeri). Most SOM-ir cells were found in the preoptic area and hypothalamus and abundant SOM-ir fibres coursed along the hypothalamic floor towards the median eminence, suggesting a hypophysiotrophic role for SOM in sturgeon. In addition, SOM-ir cells and fibres were observed in extrahypothalamic regions such as the telencephalon thalamus, rhombencephalon and spinal cord, which also suggests neuromodulatory and/or neurotransmitter functions for this peptide. Overall there was a good correlation between the distribution of SOM-ir neurons throughout the brain of A. baeri and that of PSS1 mRNA in Acipenser transmontanus. Comparative analysis of the results with those obtained in other groups of fishes and tetrapods indicates that widespread distribution of this peptide in the brain is shared by early vertebrate lines and that the general organization of the somatostatinergic systems has been well-conserved during evolution.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18400215</PMID><DateCreated><Year>2008</Year><Month>04</Month><Day>28</Day></DateCreated><DateCompleted><Year>2008</Year><Month>08</Month><Day>11</Day></DateCompleted><DateRevised><Year>2008</Year><Month>04</Month><Day>28</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0006-8993</ISSN><JournalIssue CitedMedium="Print"><Volume>1209</Volume><PubDate><Year>2008</Year><Month>May</Month><Day>13</Day></PubDate></JournalIssue><Title>Brain research</Title><ISOAbbreviation>Brain Res.</ISOAbbreviation></Journal><ArticleTitle>Distribution of somatostatin immunoreactive neurons and fibres in the central nervous system of a chondrostean, the Siberian sturgeon (Acipenser baeri).</ArticleTitle><Pagination><MedlinePgn>92-104</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.brainres.2008.03.002</ELocationID><Abstract><AbstractText>Somatostatin (SOM) is a neuropeptide that is widely distributed in the central nervous system of vertebrates. Two isoforms of somatostatin (SS1 and SS2) have been characterized in sturgeon and in situ hybridisation studies in the sturgeon brain have demonstrated that mRNAs of the two somatostatin precursors (PSS1 and PSS2) are differentially expressed in neurons [Trabucchi, M., Tostivint, H., Lihrmann, I., Sollars, C., Vallarino, M., Dores, R.M., Vaudry, H., 2002. Polygenic expression of somatostatin in the sturgeon Acipenser transmontanus: molecular cloning and distribution of the mRNAs encoding two somatostatin precursors. J. Comp. Neurol. 443, 332-345.]. However, neither the morphology of somatostatinergic neurons nor the patterns of innervation have yet been characterized. To gain further insight into the evolution of this system in primitive bony fishes, we studied the distribution of somatostatin-immunoreactive (SOM-ir) cells and fibres in the brain of the Siberian sturgeon (Acipenser baeri). Most SOM-ir cells were found in the preoptic area and hypothalamus and abundant SOM-ir fibres coursed along the hypothalamic floor towards the median eminence, suggesting a hypophysiotrophic role for SOM in sturgeon. In addition, SOM-ir cells and fibres were observed in extrahypothalamic regions such as the telencephalon thalamus, rhombencephalon and spinal cord, which also suggests neuromodulatory and/or neurotransmitter functions for this peptide. Overall there was a good correlation between the distribution of SOM-ir neurons throughout the brain of A. baeri and that of PSS1 mRNA in Acipenser transmontanus. Comparative analysis of the results with those obtained in other groups of fishes and tetrapods indicates that widespread distribution of this peptide in the brain is shared by early vertebrate lines and that the general organization of the somatostatinergic systems has been well-conserved during evolution.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Adrio</LastName><ForeName>Fátima</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Department of Cell Biology and Ecology, Faculty of Biology, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain. bfatima@usc.es</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Anadón</LastName><ForeName>Ramón</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Rodríguez-Moldes</LastName><ForeName>Isabel</ForeName><Initials>I</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2008</Year><Month>03</Month><Day>18</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Brain Res</MedlineTA><NlmUniqueID>0045503</NlmUniqueID><ISSNLinking>0006-8993</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>51110-01-1</RegistryNumber><NameOfSubstance UI="D013004">Somatostatin</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001369" MajorTopicYN="N">Axons</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001921" MajorTopicYN="N">Brain</DescriptorName><QualifierName UI="Q000033" 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MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011301" MajorTopicYN="N">Preoptic Area</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013004" MajorTopicYN="N">Somatostatin</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013116" MajorTopicYN="N">Spinal Cord</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate 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IdType="doi">10.1016/j.brainres.2008.03.002</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country><region><li>Galice</li></region><settlement><li>Santiago de Compostela</li></settlement><orgName><li>Université de Saint-Jacques-de-Compostelle</li></orgName></list><tree><noCountry><name sortKey="Anad N, Ram N" sort="Anad N, Ram N" uniqKey="Anad N R" first="Ram N" last="Anad N">Ram N Anad N</name><name sortKey="Rodriguez Moldes, Isabel" sort="Rodriguez Moldes, Isabel" uniqKey="Rodriguez Moldes I" first="Isabel" last="Rodríguez-Moldes">Isabel Rodríguez-Moldes</name></noCountry><country name="Espagne"><region name="Galice"><name sortKey="Adrio, Fatima" sort="Adrio, Fatima" uniqKey="Adrio F" first="Fátima" last="Adrio">Fátima Adrio</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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