Harm avoidance, anxiety, and response to novelty in the adolescent S-100beta transgenic mouse: role of serotonin and relevance to Down syndrome
S-100beta is an astroglial-derived protein, which plays a role in brain development and maintenance, and is known to play a specific role in the regulation of growth of the serotonergic neuronal system. In humans, the gene for S-100beta is found on chromosome 21, within the region that is considered...
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Veröffentlicht in: | Neuropsychopharmacology (New York, N.Y.) N.Y.), 2003-10, Vol.28 (10), p.1810-1816 |
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description | S-100beta is an astroglial-derived protein, which plays a role in brain development and maintenance, and is known to play a specific role in the regulation of growth of the serotonergic neuronal system. In humans, the gene for S-100beta is found on chromosome 21, within the region that is considered important for the phenotype of Down syndrome (DS). Thus, we have been studying a model of DS, the S-100beta transgenic mouse. In the current study, we have examined anxiety and responses to novelty in adolescent (60-90 days) animals, at a time when we have shown the animals to be relatively lacking in serotonin innervation, compared to their CD-1 nontransgenic controls. In a test for approach/avoidance, the light/dark test, the S-100beta transgenic mice animals showed no differences from control CD-1 mice. However, in the hole-board test for exploratory behavior, the S-100beta animals were found to be less responsive to the inhibiting effects of the serotonin receptor 5-HT1A agonist, buspirone. Three tests were used to measure response to novelty. In the open field, the S-100beta animals showed greater activity longer than the control animals, and in the Y-maze test, the S-100beta animals spent more time in the novel arm. In a test for novelty-induced gnawing, the S-100beta animals were also more active than control animals. All of these suggest that the S-100beta transgenic mice are slower to habituate to novelty than control animals. Finally, we tested the animals in a new procedure that we are proposing as a test for harm avoidance. In this apparatus, the S-100beta animals showed more approaches to a novel and potentially harmful object than the control mice did. These results are discussed in reference to the known lack of serotonin in the animals, and to the behavioral phenotype of DS. |
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In humans, the gene for S-100beta is found on chromosome 21, within the region that is considered important for the phenotype of Down syndrome (DS). Thus, we have been studying a model of DS, the S-100beta transgenic mouse. In the current study, we have examined anxiety and responses to novelty in adolescent (60-90 days) animals, at a time when we have shown the animals to be relatively lacking in serotonin innervation, compared to their CD-1 nontransgenic controls. In a test for approach/avoidance, the light/dark test, the S-100beta transgenic mice animals showed no differences from control CD-1 mice. However, in the hole-board test for exploratory behavior, the S-100beta animals were found to be less responsive to the inhibiting effects of the serotonin receptor 5-HT1A agonist, buspirone. Three tests were used to measure response to novelty. In the open field, the S-100beta animals showed greater activity longer than the control animals, and in the Y-maze test, the S-100beta animals spent more time in the novel arm. In a test for novelty-induced gnawing, the S-100beta animals were also more active than control animals. All of these suggest that the S-100beta transgenic mice are slower to habituate to novelty than control animals. Finally, we tested the animals in a new procedure that we are proposing as a test for harm avoidance. In this apparatus, the S-100beta animals showed more approaches to a novel and potentially harmful object than the control mice did. These results are discussed in reference to the known lack of serotonin in the animals, and to the behavioral phenotype of DS.</description><identifier>ISSN: 0893-133X</identifier><identifier>PMID: 12888777</identifier><language>eng</language><publisher>England</publisher><subject>Animals ; Anxiety - physiopathology ; Avoidance Learning - drug effects ; Behavior, Animal ; Buspirone - pharmacology ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Down Syndrome - physiopathology ; Exploratory Behavior - drug effects ; Maze Learning - drug effects ; Mice ; Mice, Inbred Strains ; Mice, Transgenic ; Nerve Growth Factors - genetics ; Reaction Time - drug effects ; S100 Calcium Binding Protein beta Subunit ; S100 Proteins - genetics ; Serotonin - physiology ; Serotonin Receptor Agonists - pharmacology ; Time Factors ; Weight Lifting - physiology</subject><ispartof>Neuropsychopharmacology (New York, N.Y.), 2003-10, Vol.28 (10), p.1810-1816</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12888777$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bell, Kimberly</creatorcontrib><creatorcontrib>Shokrian, David</creatorcontrib><creatorcontrib>Potenzieri, Carl</creatorcontrib><creatorcontrib>Whitaker-Azmitia, Patricia M</creatorcontrib><title>Harm avoidance, anxiety, and response to novelty in the adolescent S-100beta transgenic mouse: role of serotonin and relevance to Down syndrome</title><title>Neuropsychopharmacology (New York, N.Y.)</title><addtitle>Neuropsychopharmacology</addtitle><description>S-100beta is an astroglial-derived protein, which plays a role in brain development and maintenance, and is known to play a specific role in the regulation of growth of the serotonergic neuronal system. In humans, the gene for S-100beta is found on chromosome 21, within the region that is considered important for the phenotype of Down syndrome (DS). Thus, we have been studying a model of DS, the S-100beta transgenic mouse. In the current study, we have examined anxiety and responses to novelty in adolescent (60-90 days) animals, at a time when we have shown the animals to be relatively lacking in serotonin innervation, compared to their CD-1 nontransgenic controls. In a test for approach/avoidance, the light/dark test, the S-100beta transgenic mice animals showed no differences from control CD-1 mice. However, in the hole-board test for exploratory behavior, the S-100beta animals were found to be less responsive to the inhibiting effects of the serotonin receptor 5-HT1A agonist, buspirone. Three tests were used to measure response to novelty. In the open field, the S-100beta animals showed greater activity longer than the control animals, and in the Y-maze test, the S-100beta animals spent more time in the novel arm. In a test for novelty-induced gnawing, the S-100beta animals were also more active than control animals. All of these suggest that the S-100beta transgenic mice are slower to habituate to novelty than control animals. Finally, we tested the animals in a new procedure that we are proposing as a test for harm avoidance. In this apparatus, the S-100beta animals showed more approaches to a novel and potentially harmful object than the control mice did. These results are discussed in reference to the known lack of serotonin in the animals, and to the behavioral phenotype of DS.</description><subject>Animals</subject><subject>Anxiety - physiopathology</subject><subject>Avoidance Learning - drug effects</subject><subject>Behavior, Animal</subject><subject>Buspirone - pharmacology</subject><subject>Disease Models, Animal</subject><subject>Dose-Response Relationship, Drug</subject><subject>Down Syndrome - physiopathology</subject><subject>Exploratory Behavior - drug effects</subject><subject>Maze Learning - drug effects</subject><subject>Mice</subject><subject>Mice, Inbred Strains</subject><subject>Mice, Transgenic</subject><subject>Nerve Growth Factors - genetics</subject><subject>Reaction Time - drug effects</subject><subject>S100 Calcium Binding Protein beta Subunit</subject><subject>S100 Proteins - genetics</subject><subject>Serotonin - physiology</subject><subject>Serotonin Receptor Agonists - pharmacology</subject><subject>Time Factors</subject><subject>Weight Lifting - physiology</subject><issn>0893-133X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo1kMtOwzAQRb0A0VL4BTQrVkSy4zp22KHyKFIlFoDELrLjKQQldrDdQr6CXyZVy2pmce6ZxxGZUlXyjHH-NiGnMX5SyoQs1AmZsFwpJaWckt-lDh3orW-sdjVegXY_DaZh11gIGHvvIkLy4PwW2zRA4yB9IGjrW4w1ugTPGaPUYNKQgnbxHV1TQ-c3Ea8hjBT4NUQMPnk3hvfeFre7eTvxrf92EAdng-_wjByvdRvx_FBn5PX-7mWxzFZPD4-Lm1XWszxPGVKm5tYUtTA8z20uqKyR2qIUWBQGmTIaa6oEp9wyLOe1MnJeCEYZE_m6NHxGLvfePvivDcZUdc14Tdtqh-PmlRSS0ZEfwYsDuDEd2qoPTafDUP2_kP8BYYVt6g</recordid><startdate>200310</startdate><enddate>200310</enddate><creator>Bell, Kimberly</creator><creator>Shokrian, David</creator><creator>Potenzieri, Carl</creator><creator>Whitaker-Azmitia, Patricia M</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>200310</creationdate><title>Harm avoidance, anxiety, and response to novelty in the adolescent S-100beta transgenic mouse: role of serotonin and relevance to Down syndrome</title><author>Bell, Kimberly ; Shokrian, David ; Potenzieri, Carl ; Whitaker-Azmitia, Patricia M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p122t-e0184db6c5b322d2507ce0d695e66be18baec085303d1e94c8b7465101152f9b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Animals</topic><topic>Anxiety - physiopathology</topic><topic>Avoidance Learning - drug effects</topic><topic>Behavior, Animal</topic><topic>Buspirone - pharmacology</topic><topic>Disease Models, Animal</topic><topic>Dose-Response Relationship, Drug</topic><topic>Down Syndrome - physiopathology</topic><topic>Exploratory Behavior - drug effects</topic><topic>Maze Learning - drug effects</topic><topic>Mice</topic><topic>Mice, Inbred Strains</topic><topic>Mice, Transgenic</topic><topic>Nerve Growth Factors - genetics</topic><topic>Reaction Time - drug effects</topic><topic>S100 Calcium Binding Protein beta Subunit</topic><topic>S100 Proteins - genetics</topic><topic>Serotonin - physiology</topic><topic>Serotonin Receptor Agonists - pharmacology</topic><topic>Time Factors</topic><topic>Weight Lifting - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bell, Kimberly</creatorcontrib><creatorcontrib>Shokrian, David</creatorcontrib><creatorcontrib>Potenzieri, Carl</creatorcontrib><creatorcontrib>Whitaker-Azmitia, Patricia M</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Neuropsychopharmacology (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bell, Kimberly</au><au>Shokrian, David</au><au>Potenzieri, Carl</au><au>Whitaker-Azmitia, Patricia M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Harm avoidance, anxiety, and response to novelty in the adolescent S-100beta transgenic mouse: role of serotonin and relevance to Down syndrome</atitle><jtitle>Neuropsychopharmacology (New York, N.Y.)</jtitle><addtitle>Neuropsychopharmacology</addtitle><date>2003-10</date><risdate>2003</risdate><volume>28</volume><issue>10</issue><spage>1810</spage><epage>1816</epage><pages>1810-1816</pages><issn>0893-133X</issn><abstract>S-100beta is an astroglial-derived protein, which plays a role in brain development and maintenance, and is known to play a specific role in the regulation of growth of the serotonergic neuronal system. In humans, the gene for S-100beta is found on chromosome 21, within the region that is considered important for the phenotype of Down syndrome (DS). Thus, we have been studying a model of DS, the S-100beta transgenic mouse. In the current study, we have examined anxiety and responses to novelty in adolescent (60-90 days) animals, at a time when we have shown the animals to be relatively lacking in serotonin innervation, compared to their CD-1 nontransgenic controls. In a test for approach/avoidance, the light/dark test, the S-100beta transgenic mice animals showed no differences from control CD-1 mice. However, in the hole-board test for exploratory behavior, the S-100beta animals were found to be less responsive to the inhibiting effects of the serotonin receptor 5-HT1A agonist, buspirone. Three tests were used to measure response to novelty. In the open field, the S-100beta animals showed greater activity longer than the control animals, and in the Y-maze test, the S-100beta animals spent more time in the novel arm. In a test for novelty-induced gnawing, the S-100beta animals were also more active than control animals. All of these suggest that the S-100beta transgenic mice are slower to habituate to novelty than control animals. Finally, we tested the animals in a new procedure that we are proposing as a test for harm avoidance. In this apparatus, the S-100beta animals showed more approaches to a novel and potentially harmful object than the control mice did. These results are discussed in reference to the known lack of serotonin in the animals, and to the behavioral phenotype of DS.</abstract><cop>England</cop><pmid>12888777</pmid><tpages>7</tpages></addata></record> |
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subjects | Animals Anxiety - physiopathology Avoidance Learning - drug effects Behavior, Animal Buspirone - pharmacology Disease Models, Animal Dose-Response Relationship, Drug Down Syndrome - physiopathology Exploratory Behavior - drug effects Maze Learning - drug effects Mice Mice, Inbred Strains Mice, Transgenic Nerve Growth Factors - genetics Reaction Time - drug effects S100 Calcium Binding Protein beta Subunit S100 Proteins - genetics Serotonin - physiology Serotonin Receptor Agonists - pharmacology Time Factors Weight Lifting - physiology |
title | Harm avoidance, anxiety, and response to novelty in the adolescent S-100beta transgenic mouse: role of serotonin and relevance to Down syndrome |
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