Brain arginine vasotocin concentrations related to sexual behaviors and hydromineral balance in an amphibian

Arginine vasotocin (AVT), a potent stimulator of sexual behaviors and regulator of hydromineral balance in male rough-skinned newts ( Taricha granulosa), was measured in 11 brain areas using microdissection and radioimmunoassay procedures. A 60-min test for sexual behaviors was used to segregrate ma...

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Veröffentlicht in:Hormones and behavior 1988-03, Vol.22 (1), p.66-75
Hauptverfasser: Zoeller, R.Thomas, Moore, Frank L.
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description Arginine vasotocin (AVT), a potent stimulator of sexual behaviors and regulator of hydromineral balance in male rough-skinned newts ( Taricha granulosa), was measured in 11 brain areas using microdissection and radioimmunoassay procedures. A 60-min test for sexual behaviors was used to segregrate males into two groups: sexually responsive (initiated amplectic clasping behaviors) and sexually unresponsive (exhibited no sexual behaviors). Compared to sexually unresponsive males, sexually responsive males had significantly higher concentrations of immunoreactive (ir) AVT in the dorsal preoptic area, optic tectum, ventral infundibular nucleus, and cerebrospinal fluid. These results provide evidence for a behavioral action of endogenous AVT in T. granulosa. In another study, irAVT was measured in normal males (control newts maintained in water) and males that were dehydrated for 6 hr. Compared to normal males, dehydrated males had significantly lower concentrations of irAVT in the ventral preoptic area, but not in the other 10 areas of the brain. That different brain areas are associated with sexual behaviors and hydromineral balance suggests that there are some neuroanatomical separations between the behavioral and hydromineral aspects of the vasotocinergic system in this amphibian.
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Psychology</topic><topic>Male</topic><topic>Non mammalian vertebrate reproduction</topic><topic>Preoptic Area - analysis</topic><topic>Salamandridae</topic><topic>Sexual Behavior, Animal - physiology</topic><topic>Superior Colliculi - analysis</topic><topic>Taricha granulosa</topic><topic>Vasotocin - analysis</topic><topic>Vasotocin - cerebrospinal fluid</topic><topic>Vertebrates: reproduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zoeller, R.Thomas</creatorcontrib><creatorcontrib>Moore, Frank L.</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>Animal Behavior Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Hormones and behavior</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zoeller, R.Thomas</au><au>Moore, Frank L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Brain arginine vasotocin concentrations related to sexual behaviors and hydromineral balance in an amphibian</atitle><jtitle>Hormones and behavior</jtitle><addtitle>Horm Behav</addtitle><date>1988-03-01</date><risdate>1988</risdate><volume>22</volume><issue>1</issue><spage>66</spage><epage>75</epage><pages>66-75</pages><issn>0018-506X</issn><eissn>1095-6867</eissn><coden>HOBEAO</coden><abstract>Arginine vasotocin (AVT), a potent stimulator of sexual behaviors and regulator of hydromineral balance in male rough-skinned newts ( Taricha granulosa), was measured in 11 brain areas using microdissection and radioimmunoassay procedures. A 60-min test for sexual behaviors was used to segregrate males into two groups: sexually responsive (initiated amplectic clasping behaviors) and sexually unresponsive (exhibited no sexual behaviors). Compared to sexually unresponsive males, sexually responsive males had significantly higher concentrations of immunoreactive (ir) AVT in the dorsal preoptic area, optic tectum, ventral infundibular nucleus, and cerebrospinal fluid. These results provide evidence for a behavioral action of endogenous AVT in T. granulosa. In another study, irAVT was measured in normal males (control newts maintained in water) and males that were dehydrated for 6 hr. Compared to normal males, dehydrated males had significantly lower concentrations of irAVT in the ventral preoptic area, but not in the other 10 areas of the brain. 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source MEDLINE; Elsevier ScienceDirect Journals Complete
subjects Animals
Arcuate Nucleus of Hypothalamus - analysis
Biological and medical sciences
Brain Chemistry
Corticosterone - blood
Dehydration - physiopathology
Fundamental and applied biological sciences. Psychology
Male
Non mammalian vertebrate reproduction
Preoptic Area - analysis
Salamandridae
Sexual Behavior, Animal - physiology
Superior Colliculi - analysis
Taricha granulosa
Vasotocin - analysis
Vasotocin - cerebrospinal fluid
Vertebrates: reproduction
title Brain arginine vasotocin concentrations related to sexual behaviors and hydromineral balance in an amphibian
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