Insulin stimulates testosterone biosynthesis by human thecal cells from women with polycystic ovary syndrome by activating its own receptor and using inositolglycan mediators as the signal transduction system - Nestler, J E; Jakubowicz, D J; de Vargas, A F; Brik, C; Quintero, N; Medina, F (J Clin Endocrinol Metab, 1998)