Periodontal and gastric convergences within the hypothalamic ventromedial nucleus area — single unit study on anesthetized rats
Unitary activities were recorded in the ventromedial nucleus of the hypothalamus (VHM) of anesthetized rats. Cells responding to periodontal stimulation (100–200 g disto-mesial traction applied to an upper incisive) were selected. The effects of gastric stimulation (2–5 ml distension) were then inve...
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| Veröffentlicht in: | Behavioural brain research 1995-12, Vol.72 (1), p.33-37 |
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| creator | Trub, M. Mei, N. Orofino, J. |
| description | Unitary activities were recorded in the ventromedial nucleus of the hypothalamus (VHM) of anesthetized rats. Cells responding to periodontal stimulation (100–200 g disto-mesial traction applied to an upper incisive) were selected. The effects of gastric stimulation (2–5 ml distension) were then investigated. Out of the 40 cells activated (22 cells) or inhibited (18 cells) by periodontal stimulation, only seventeen were influenced by gastric stimulation. Eight of them responded in the same way and nine in the opposite way. Unlike the periodontal stimulation, which elicited specific spatio-temporal patterns, the gastric stimulation had only weak effects. These data nevertheless demonstrate that periodontal-gastric convergences exist in the VHM nucleus, which is consistent with the role previously ascribed to this area in alimentary behaviour. |
| doi_str_mv | 10.1016/0166-4328(95)00027-5 |
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Cells responding to periodontal stimulation (100–200 g disto-mesial traction applied to an upper incisive) were selected. The effects of gastric stimulation (2–5 ml distension) were then investigated. Out of the 40 cells activated (22 cells) or inhibited (18 cells) by periodontal stimulation, only seventeen were influenced by gastric stimulation. Eight of them responded in the same way and nine in the opposite way. Unlike the periodontal stimulation, which elicited specific spatio-temporal patterns, the gastric stimulation had only weak effects. 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Cells responding to periodontal stimulation (100–200 g disto-mesial traction applied to an upper incisive) were selected. The effects of gastric stimulation (2–5 ml distension) were then investigated. Out of the 40 cells activated (22 cells) or inhibited (18 cells) by periodontal stimulation, only seventeen were influenced by gastric stimulation. Eight of them responded in the same way and nine in the opposite way. Unlike the periodontal stimulation, which elicited specific spatio-temporal patterns, the gastric stimulation had only weak effects. These data nevertheless demonstrate that periodontal-gastric convergences exist in the VHM nucleus, which is consistent with the role previously ascribed to this area in alimentary behaviour.</description><subject>Afferent Pathways - cytology</subject><subject>Afferent Pathways - physiology</subject><subject>Anatomical correlates of behavior</subject><subject>Anesthesia</subject><subject>Animals</subject><subject>Behavioral psychophysiology</subject><subject>Biological and medical sciences</subject><subject>Electric Stimulation</subject><subject>Female</subject><subject>Food intake regulation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gastric afferent</subject><subject>Gingiva - innervation</subject><subject>Gingiva - physiology</subject><subject>Hypothalamic convergence</subject><subject>Male</subject><subject>Microelectrodes</subject><subject>Periodontal afferent</subject><subject>Psychology. Psychoanalysis. 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Psychophysiology</subject><subject>Rat</subject><subject>Rats</subject><subject>Rats, Wistar</subject><subject>Stomach - innervation</subject><subject>Stomach - physiology</subject><subject>Ventromedial Hypothalamic Nucleus - cytology</subject><subject>Ventromedial Hypothalamic Nucleus - physiology</subject><subject>Ventromedial nucleus of the hypothalamus</subject><issn>0166-4328</issn><issn>1872-7549</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kcGOFCEQhonRrLOrb6AJB2N2D63QDQ1cNjEbdzXZRA96JjRUz2B6YAR6NuNJ38En9ElknMkcPRAO9VXx1wdCLyh5Qwnt39bTN6xr5aXiV4SQVjT8EVpQKdpGcKYeo8UJeYrOc_5WIUY4PUNnUkgpOVugX58h-ehiKGbCJji8NLkkb7GNYQtpCcFCxg--rHzAZQV4tdvEsjKTWVdoC6GkuAbna3eY7QRzxiaBwX9-_sbZh-UEeA6-4Fxmt8Mx1Dcg1znF_wCHkyn5GXoyminD8-N9gb7evv9y86G5_3T38ebdfWNbTkojRkbcqIgQ1DJFqXFDN1AJrHOS0W5klI29GpyAgSmiBiLbrneSirqxocx2F-j1Ye4mxe9zDaHXPluYppoozlkLoUjFuwqyA2hTzDnBqDfJr03aaUr03rzea9V7rVpx_c-85rXt5XH-PFQjp6aj6lp_daybbM00JhOszyesVX3PiarY9QGD6mLrIels_f4XnE9gi3bR_z_HX-mdok0</recordid><startdate>19951214</startdate><enddate>19951214</enddate><creator>Trub, M.</creator><creator>Mei, N.</creator><creator>Orofino, J.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19951214</creationdate><title>Periodontal and gastric convergences within the hypothalamic ventromedial nucleus area — single unit study on anesthetized rats</title><author>Trub, M. ; Mei, N. ; Orofino, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c250t-7f40df90771c4911adb3b18e43d8413f414f69bd7eb4909b08236d817405a14c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Afferent Pathways - cytology</topic><topic>Afferent Pathways - physiology</topic><topic>Anatomical correlates of behavior</topic><topic>Anesthesia</topic><topic>Animals</topic><topic>Behavioral psychophysiology</topic><topic>Biological and medical sciences</topic><topic>Electric Stimulation</topic><topic>Female</topic><topic>Food intake regulation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gastric afferent</topic><topic>Gingiva - innervation</topic><topic>Gingiva - physiology</topic><topic>Hypothalamic convergence</topic><topic>Male</topic><topic>Microelectrodes</topic><topic>Periodontal afferent</topic><topic>Psychology. Psychoanalysis. Psychiatry</topic><topic>Psychology. Psychophysiology</topic><topic>Rat</topic><topic>Rats</topic><topic>Rats, Wistar</topic><topic>Stomach - innervation</topic><topic>Stomach - physiology</topic><topic>Ventromedial Hypothalamic Nucleus - cytology</topic><topic>Ventromedial Hypothalamic Nucleus - physiology</topic><topic>Ventromedial nucleus of the hypothalamus</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Trub, M.</creatorcontrib><creatorcontrib>Mei, N.</creatorcontrib><creatorcontrib>Orofino, J.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Behavioural brain research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Trub, M.</au><au>Mei, N.</au><au>Orofino, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Periodontal and gastric convergences within the hypothalamic ventromedial nucleus area — single unit study on anesthetized rats</atitle><jtitle>Behavioural brain research</jtitle><addtitle>Behav Brain Res</addtitle><date>1995-12-14</date><risdate>1995</risdate><volume>72</volume><issue>1</issue><spage>33</spage><epage>37</epage><pages>33-37</pages><issn>0166-4328</issn><eissn>1872-7549</eissn><coden>BBREDI</coden><abstract>Unitary activities were recorded in the ventromedial nucleus of the hypothalamus (VHM) of anesthetized rats. Cells responding to periodontal stimulation (100–200 g disto-mesial traction applied to an upper incisive) were selected. The effects of gastric stimulation (2–5 ml distension) were then investigated. Out of the 40 cells activated (22 cells) or inhibited (18 cells) by periodontal stimulation, only seventeen were influenced by gastric stimulation. Eight of them responded in the same way and nine in the opposite way. Unlike the periodontal stimulation, which elicited specific spatio-temporal patterns, the gastric stimulation had only weak effects. These data nevertheless demonstrate that periodontal-gastric convergences exist in the VHM nucleus, which is consistent with the role previously ascribed to this area in alimentary behaviour.</abstract><cop>Shannon</cop><pub>Elsevier B.V</pub><pmid>8788854</pmid><doi>10.1016/0166-4328(95)00027-5</doi><tpages>5</tpages></addata></record> |
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| ispartof | Behavioural brain research, 1995-12, Vol.72 (1), p.33-37 |
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| subjects | Afferent Pathways - cytology Afferent Pathways - physiology Anatomical correlates of behavior Anesthesia Animals Behavioral psychophysiology Biological and medical sciences Electric Stimulation Female Food intake regulation Fundamental and applied biological sciences. Psychology Gastric afferent Gingiva - innervation Gingiva - physiology Hypothalamic convergence Male Microelectrodes Periodontal afferent Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Rat Rats Rats, Wistar Stomach - innervation Stomach - physiology Ventromedial Hypothalamic Nucleus - cytology Ventromedial Hypothalamic Nucleus - physiology Ventromedial nucleus of the hypothalamus |
| title | Periodontal and gastric convergences within the hypothalamic ventromedial nucleus area — single unit study on anesthetized rats |
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