Searchable abstracts of presentations at key conferences in endocrinology

ea0012p92 | Reproduction | SFE2006

Continuous administration of kisspeptin-54 leads to desensitisation of the hypothalamo-pituitary-gonadal axis and testicular degeneration

Appleby GF , Thompson EL , Murphy KG , Patterson M , Bewick GA , Stamp GWH , Todd JF , Ghatei MA , Bloom SR

Kisspeptin-54 is a neuropeptide encoded by the Kiss-1 gene with an important role in the regulation of reproduction and puberty. Acute peripheral or intra-hypothalamic administration of kisspeptin-54 potently stimulates the hypothalamo-pituitary-gonadal (HPG) axis via hypothalamic gonadotrophin releasing hormone (GnRH) neurons. However, the effects of chronic continuous kisspeptin administration are poorly characterised. Our studies investigated the effects of chronic, continu...

ea0011p690 | Reproduction | ECE2006

Chronic subcutaneous administration of kisspeptin-54 causes testicular degeneration in adult male rats

Thompson EL , Murphy KG , Patterson M , Bewick GA , Jethwa PH , Stamp GWH , Todd JF , Ghatei MA , Bloom SR

The kisspeptins are KiSS-1 gene-derived peptides which signal through the G protein coupled receptor 54 (GPR54), and have recently been shown to be critical regulators of reproduction. Acute intracerebroventricular (ICV) or peripheral administration of kisspeptin to rodents and primates, and peripheral administration to humans, stimulates the hypothalamic-pituitary gonadal (HPG) axis. This effect is thought to be mediated via the hypothalamic gonadotrophin-releasing hormone (G...