Endocrine Abstracts

Self-limited delayed puberty is a condition that is frequently familial with strong genetic determinants. It has been linked to coding region sequence variation by next generation sequencing of affected individuals, identifying genetic regulation of gonadotropin-releasing hormone (GnRH) pathways underlying this condition. However, the role of epigenetic modifiers of human pubertal timing is underexplored. The Hypothalamic-pituitary-gonadal (HPG) axis is unique as it is active ...

Loss of function of succinate dehydrogenase (SDH), caused by mutations in each of the 4 subunits – SDHA/B/C and D – is associated with development of phaeochromocytomas and paragangliomas (PPGLs). The mutations lead to loss of enzymatic activity and subsequent accumulation of the oncometabolite succinate, a driver of tumourigenesis. It is well established but poorly understood why mutations in SDHB are associated with more aggressi...