"OLE significantly induced testicular steroidogenesis in diabetic rat as evidenced by elevated P450 scc and 17β-HSD mRNA expression"
https://pmc.ncbi.nlm.nih.gov/articles/PMC6438850/

P450scc increases Pregnenolone
https://en.m.wikipedia.org/wiki/Cholesterol_side-chain_cleavage_enzyme

It increases mating success /fertility by 50% in diabetic rats in the above study.