{"refrec":{"BRefID":4118,"RR":"<b>Elofsson, U.O.E.; Winberg, S.; Francis, R.C.; Mayer, I.; Nilsson, G.E.</b> (2000). Gonadotropin releasing hormone (GnRH) producing cells in the brain of sex changing fish, <b><i>in</i></b>: Norberg, B. <i>et al.</i> (Ed.) <i>Proceedings of the 6th International Symposium on the Reproductive Physiology of Fish, Bergen, Norway, July 4-9, 1999.</i> pp. 50-52","BEntID":4118,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Norberg, B. <i>et al.</i> <i>Proceedings of the 6th International Symposium on the Reproductive Physiology of Fish, Bergen, Norway, July 4-9, 1999. International Symposium on the Reproductive Physiology of Fish,</i> 6: pp. 50-52","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Elofsson, U.O.E.; Winberg, S.; Francis, R.C.; Mayer, I.; Nilsson, G.E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Elofsson, U.O.E. <i>et al.</i>","Englishabstract":"The known and proposed functions of the brain gonadotropin-releasing hormone (GnRH) system in reproductive endocrine pathways and behaviour makes it a likely key component in the process of socially induced post-maturational sex change. In the present study, the distribution of brain GnRH-immunoreactive (GnRH-ir) neurones was examined in some sex changing teleost species. The effects of gender, maturational state and gonadal androgens on GnRH-ir cell number and size were addressed. The results indicate that a long-term increase/decrease in preoptic area GnRH-ir cell number is part of a masculinization/demasculinization mechanism in female-to-male/male-to-female sex changing fish, and that a short-term change in GnRH-ir cell size is coupled to the seasonal spawning cycle. They further imply that gonadal androgens not are responsible for this plasticity in GnRH-ir neurones.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Gonadotropin releasing hormone (GnRH) producing cells in the brain of sex changing fish","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-08 01:30:34.533355","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2000,"MonPub":null,"DateUpdate":"2001-06-11","DateCreate":"2000-10-31","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":4118,"PubliDate":2000,"Pagination":"50-52","XtraPublOfAnaID":null,"ISBN":"82-7461-048-2","Volume":"6","Issue":null,"BRefMon":4111,"BRefMonRR":"<b>Norberg, B. <i>et al.</i></b> (2000). 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