Influence of 2 Br-alpha-ergocryptine (CB 154) on the secretion of prolactin, LH, FSH and testosterone and on testicular growth in rams subjected to different photoperiods
The influence of 2-Br-alpha-ergocryptine (CB 154) on the secretion of gonadotrophins and on testicular function has been studied in rams subjected to either a normal photoperiod or an abnormal photoperiod causing hyperprolactinaemia. The CB 154 treatment significantly lowered the mean frequency of L...
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| Veröffentlicht in: | Reproduction, nutrition, développement nutrition, développement, 1982, Vol.22 (6), p.989-998 |
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| container_title | Reproduction, nutrition, développement |
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| creator | Ravault, J P Barenton, B Blanc, M Daveau, A Garnier, D H Ortavant, R Pelletier, J de Reviers, M M Terqui, M |
| description | The influence of 2-Br-alpha-ergocryptine (CB 154) on the secretion of gonadotrophins and on testicular function has been studied in rams subjected to either a normal photoperiod or an abnormal photoperiod causing hyperprolactinaemia. The CB 154 treatment significantly lowered the mean frequency of LH and testosterone pulses in hyperprolactinaemic animals as compared to solvent-treated ones. Also, only those groups subjected to an abnormal photoperiod (groups 2 and 3) exhibited a significant rise in the frequency of LH and testosterone peaks after CB 154 was withdrawn. During treatment, plasma FSH concentrations increased significantly only in group 1 which was subjected to normal photoperiodic variations. Testicular growth was delayed in CB 154-treated rams compared to solvent-treated ones only in group 3 (hyperprolactinaemic). |
| doi_str_mv | 10.1051/rnd:19820710 |
| format | Article |
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Faculte des Sciences, Laboratoire de Physiologie Comparee ; Institut Agronomique et Veterinaire Hassan 2, Rabat (Morocco)</creatorcontrib><description>The influence of 2-Br-alpha-ergocryptine (CB 154) on the secretion of gonadotrophins and on testicular function has been studied in rams subjected to either a normal photoperiod or an abnormal photoperiod causing hyperprolactinaemia. The CB 154 treatment significantly lowered the mean frequency of LH and testosterone pulses in hyperprolactinaemic animals as compared to solvent-treated ones. Also, only those groups subjected to an abnormal photoperiod (groups 2 and 3) exhibited a significant rise in the frequency of LH and testosterone peaks after CB 154 was withdrawn. During treatment, plasma FSH concentrations increased significantly only in group 1 which was subjected to normal photoperiodic variations. Testicular growth was delayed in CB 154-treated rams compared to solvent-treated ones only in group 3 (hyperprolactinaemic).</description><identifier>ISSN: 0181-1916</identifier><identifier>DOI: 10.1051/rnd:19820710</identifier><identifier>PMID: 6819613</identifier><language>eng</language><publisher>France</publisher><subject>Animals ; Bromocriptine - pharmacology ; Follicle Stimulating Hormone - secretion ; Gonadotropins, Pituitary - secretion ; Light ; Luteinizing Hormone - secretion ; Male ; Periodicity ; Prolactin - blood ; Sheep - physiology ; Testis - drug effects ; Testis - growth & development ; Testis - physiology ; Testosterone - secretion</subject><ispartof>Reproduction, nutrition, développement, 1982, Vol.22 (6), p.989-998</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c347t-746ed8d97b75861701e40b8bc331627655bb7f82ed3a39d72845c5c9ab5d53853</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/6819613$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ravault, J P</creatorcontrib><creatorcontrib>Barenton, B</creatorcontrib><creatorcontrib>Blanc, M</creatorcontrib><creatorcontrib>Daveau, A</creatorcontrib><creatorcontrib>Garnier, D H</creatorcontrib><creatorcontrib>Ortavant, R</creatorcontrib><creatorcontrib>Pelletier, J</creatorcontrib><creatorcontrib>de Reviers, M M</creatorcontrib><creatorcontrib>Terqui, M</creatorcontrib><creatorcontrib>Universite de Tours (France). Faculte des Sciences, Laboratoire de Physiologie Comparee</creatorcontrib><creatorcontrib>Institut Agronomique et Veterinaire Hassan 2, Rabat (Morocco)</creatorcontrib><title>Influence of 2 Br-alpha-ergocryptine (CB 154) on the secretion of prolactin, LH, FSH and testosterone and on testicular growth in rams subjected to different photoperiods</title><title>Reproduction, nutrition, développement</title><addtitle>Reprod Nutr Dev</addtitle><description>The influence of 2-Br-alpha-ergocryptine (CB 154) on the secretion of gonadotrophins and on testicular function has been studied in rams subjected to either a normal photoperiod or an abnormal photoperiod causing hyperprolactinaemia. The CB 154 treatment significantly lowered the mean frequency of LH and testosterone pulses in hyperprolactinaemic animals as compared to solvent-treated ones. Also, only those groups subjected to an abnormal photoperiod (groups 2 and 3) exhibited a significant rise in the frequency of LH and testosterone peaks after CB 154 was withdrawn. During treatment, plasma FSH concentrations increased significantly only in group 1 which was subjected to normal photoperiodic variations. Testicular growth was delayed in CB 154-treated rams compared to solvent-treated ones only in group 3 (hyperprolactinaemic).</description><subject>Animals</subject><subject>Bromocriptine - pharmacology</subject><subject>Follicle Stimulating Hormone - secretion</subject><subject>Gonadotropins, Pituitary - secretion</subject><subject>Light</subject><subject>Luteinizing Hormone - secretion</subject><subject>Male</subject><subject>Periodicity</subject><subject>Prolactin - blood</subject><subject>Sheep - physiology</subject><subject>Testis - drug effects</subject><subject>Testis - growth & development</subject><subject>Testis - physiology</subject><subject>Testosterone - secretion</subject><issn>0181-1916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1982</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kU2P0zAQhn0ALcvCjSvIJwRSA_6Mnb2xFaUrVULi4xw59qT1KrWD7QjtX-JX4qqF02hmnvfVjF6EXlHygRJJP6bgbmmnGVGUPEHXhGra0I62z9DznB8IaVnL5RW6ajXtWsqv0Z_7ME4LBAs4jpjhu9SYaT6YBtI-2vQ4Fx8Av1vfYSrFexwDLgfAGWyC4mtXRXOKk7GVW-HddoU337fYBIcL5BJzgRSrwWlw0taZt8tkEt6n-LscsA84mWPGeRkewBaouoidH0dIEAqeD7HEGZKPLr9AT0czZXh5qTfo5-bzj_W22X39cr_-tGssF6o0SrTgtOvUoKRuqSIUBBn0YDmnLVOtlMOgRs3AccM7p5gW0krbmUE6ybXkN-jt2bc-9mupF_dHny1MkwkQl9xrwjomxAlcnUGbYs4Jxn5O_mjSY09Jf4qjr3H0_-Ko-OuL7zIcwf2HL1nU_ZvzfjSxN_vkc7_5VtWCEMWUFvwvaWKRjQ</recordid><startdate>1982</startdate><enddate>1982</enddate><creator>Ravault, J P</creator><creator>Barenton, B</creator><creator>Blanc, M</creator><creator>Daveau, A</creator><creator>Garnier, D H</creator><creator>Ortavant, R</creator><creator>Pelletier, J</creator><creator>de Reviers, M M</creator><creator>Terqui, M</creator><scope>FBQ</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>1982</creationdate><title>Influence of 2 Br-alpha-ergocryptine (CB 154) on the secretion of prolactin, LH, FSH and testosterone and on testicular growth in rams subjected to different photoperiods</title><author>Ravault, J P ; Barenton, B ; Blanc, M ; Daveau, A ; Garnier, D H ; Ortavant, R ; Pelletier, J ; de Reviers, M M ; Terqui, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c347t-746ed8d97b75861701e40b8bc331627655bb7f82ed3a39d72845c5c9ab5d53853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1982</creationdate><topic>Animals</topic><topic>Bromocriptine - pharmacology</topic><topic>Follicle Stimulating Hormone - secretion</topic><topic>Gonadotropins, Pituitary - secretion</topic><topic>Light</topic><topic>Luteinizing Hormone - secretion</topic><topic>Male</topic><topic>Periodicity</topic><topic>Prolactin - blood</topic><topic>Sheep - physiology</topic><topic>Testis - drug effects</topic><topic>Testis - growth & development</topic><topic>Testis - physiology</topic><topic>Testosterone - secretion</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ravault, J P</creatorcontrib><creatorcontrib>Barenton, B</creatorcontrib><creatorcontrib>Blanc, M</creatorcontrib><creatorcontrib>Daveau, A</creatorcontrib><creatorcontrib>Garnier, D H</creatorcontrib><creatorcontrib>Ortavant, R</creatorcontrib><creatorcontrib>Pelletier, J</creatorcontrib><creatorcontrib>de Reviers, M M</creatorcontrib><creatorcontrib>Terqui, M</creatorcontrib><creatorcontrib>Universite de Tours (France). Faculte des Sciences, Laboratoire de Physiologie Comparee</creatorcontrib><creatorcontrib>Institut Agronomique et Veterinaire Hassan 2, Rabat (Morocco)</creatorcontrib><collection>AGRIS</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>Reproduction, nutrition, développement</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ravault, J P</au><au>Barenton, B</au><au>Blanc, M</au><au>Daveau, A</au><au>Garnier, D H</au><au>Ortavant, R</au><au>Pelletier, J</au><au>de Reviers, M M</au><au>Terqui, M</au><aucorp>Universite de Tours (France). Faculte des Sciences, Laboratoire de Physiologie Comparee</aucorp><aucorp>Institut Agronomique et Veterinaire Hassan 2, Rabat (Morocco)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of 2 Br-alpha-ergocryptine (CB 154) on the secretion of prolactin, LH, FSH and testosterone and on testicular growth in rams subjected to different photoperiods</atitle><jtitle>Reproduction, nutrition, développement</jtitle><addtitle>Reprod Nutr Dev</addtitle><date>1982</date><risdate>1982</risdate><volume>22</volume><issue>6</issue><spage>989</spage><epage>998</epage><pages>989-998</pages><issn>0181-1916</issn><abstract>The influence of 2-Br-alpha-ergocryptine (CB 154) on the secretion of gonadotrophins and on testicular function has been studied in rams subjected to either a normal photoperiod or an abnormal photoperiod causing hyperprolactinaemia. The CB 154 treatment significantly lowered the mean frequency of LH and testosterone pulses in hyperprolactinaemic animals as compared to solvent-treated ones. Also, only those groups subjected to an abnormal photoperiod (groups 2 and 3) exhibited a significant rise in the frequency of LH and testosterone peaks after CB 154 was withdrawn. During treatment, plasma FSH concentrations increased significantly only in group 1 which was subjected to normal photoperiodic variations. Testicular growth was delayed in CB 154-treated rams compared to solvent-treated ones only in group 3 (hyperprolactinaemic).</abstract><cop>France</cop><pmid>6819613</pmid><doi>10.1051/rnd:19820710</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0181-1916 |
| ispartof | Reproduction, nutrition, développement, 1982, Vol.22 (6), p.989-998 |
| issn | 0181-1916 |
| language | eng |
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| source | MEDLINE; Alma/SFX Local Collection |
| subjects | Animals Bromocriptine - pharmacology Follicle Stimulating Hormone - secretion Gonadotropins, Pituitary - secretion Light Luteinizing Hormone - secretion Male Periodicity Prolactin - blood Sheep - physiology Testis - drug effects Testis - growth & development Testis - physiology Testosterone - secretion |
| title | Influence of 2 Br-alpha-ergocryptine (CB 154) on the secretion of prolactin, LH, FSH and testosterone and on testicular growth in rams subjected to different photoperiods |
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