Science and Education Publishing American Journal of Medical Case Reports 2374-216X 5 3 2017 4 12 Mechanisms of Luteinising Hormone Regulation in Female Steroidogenesis 65 68 EN David Cadagan Sciences Department, Staffordshire University, UK Christopher Towlson AJMCR2017536 10.12691/ajmcr-5-3-6 2016 11 6 2017 2 11 2017 4 10 Understanding the mechanisms of steroidogenic regulation in female fertility is fundamental to determining dysfunction. Research has revealed a strong relationship between fertility and metabolic disturbances. With many endocrine signals involved in activation of steroidogenic cascades, it has become necessary to map the complex cross-talk between these regulatory systems and this review looks to establish this based on current understanding. Luteininsing hormone is a vital endocrine hormone that is already known to signal via these pathways, although its involvement in metabolic disturbance is less understood. Studies investigating activation of the LH receptor in key steroidogenic cells, ovarian theca and granulosa, have highlighted overlaps in important signaling cascades including PKC/MAPK/PKA and PI3K. Here, we review LH and its signaling cross-talk in key steroidogenic pathways.