GnRH2
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GnRH2, also known as gonadotropin-releasing hormone II or LHRH-II. Its gene is located on human chromosome 20.[1]
Most vertebrate species possess two or three forms of gonadotropin-releasing hormone (GnRH) expressed in three distinct brain regions. Although the function of the hypothalamic form (GnRH1; common to many vertebrates), in controlling the reproductive axis has been defined, the functions of the other two isoforms (GnRH2 and GnRH3) remain largely unknown.[2] The presence and conservation of GnRH2 across vertebrate species indicate important biological roles, but the absence of GnRH2 in rodents has greatly hampered the use of these vertebrate models and modern molecular tools to pursue its functions.[3]
A relatively well-documented function of GnRH2 is that the administration of GnRH2 has anorexigenic effects in female musk shrew,[4] mouse,[5] goldfish [6] and zebrafish,[7] but the mechanisms are still unclear.
See also
- Gonadotropin-releasing hormone (GnRH1)
- Gonadotropin-releasing hormone agonist
- Gonadotropin-releasing hormone antagonist
References
- ↑ EntrezGene 2797
- ↑ The Highly Conserved Gonadotropin-Releasing Hormone-2 Form Acts as a Melatonin-Releasing Factor in the Pineal of a Teleost Fish, the European Sea Bass Dicentrarchus labrax
- ↑ Comprehensive Analysis of GnRH2 Neuronal Projections in Zebrafish
- ↑ Kauffman, Alexander S.; Rissman, Emilie F. (2004). "The Evolutionarily Conserved Gonadotropin-Releasing Hormone II Modifies Food Intake". Endocrinology. 145: 686–691. doi:10.1210/en.2003-1150.
- ↑ Kauffman, Alexander S.; Rissman, Emilie F. (2004). "A Critical Role for the Evolutionarily Conserved Gonadotropin-Releasing Hormone II: Mediation of Energy Status and Female Sexual Behavior". Endocrinology. 145: 3639–3646. doi:10.1210/en.2004-0148.
- ↑ Matsuda, Kouhei; Nakamura, Kouta; Shimakura, Sei-Ichi; Miura, Tohru; Kageyama, Haruaki; Uchiyama, Minoru; Shioda, Seiji; Ando, Hironori (2008). "Inhibitory effect of chicken gonadotropin-releasing hormone II on food intake in the goldfish, Carassius auratus". Hormones and Behavior. 54: 83–89. doi:10.1016/j.yhbeh.2008.01.011.
- ↑ Gonadotropin-releasing hormone 2 suppresses food intake in the zebrafish, Danio rerio
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- Genes on human chromosome 20