ESPE2016 Free Communications Neuroendocrinology (6 abstracts)
aCukurova University, Division of Pediatric Endocrinology, Adana, Turkey; bCellular and Developmental Neurobiology Section, National Institute of Neurological Disorders and Stroke, Bethesda, USA; cDepartment of Pediatric Endocrinology, GATA Medical Faculty, Istanbul, Turkey; dDepartment of Pediatric Endocrinology, Diyarbakir Childrens State Hospital, Diyarbakir, Turkey; eDepartment of Endocrinology, Firat University, Elazig, Turkey
Background: GnRH neurons originate outside the CNS in the olfactory placode and migrate into the central nervous system, becoming integral components of the hypothalamic-pituitarygonadal axis (HPG).
Objective and hypotheses: We hypothesize that gene(s), whose products are important for pubertal development can be identified via autozygosity mapping together with whole exome sequencing in patients with idiopathic hypogonadotrophic hypogonadism (IHH)/Kallmann Syndrome (KS).
Method: We studied a cohort IHH/KS cases.
Results: Our studies revealed three independent families in which IHH/KS is associated with inactivating CCDC141 variants.
Conclusion: These results indicate that CCDC141 is required for successful migration of GnRH neurons to their final destination in the hypothalamus, and thus establishment of the central part of HPG axis.