I posted some studied in the past on the estrogenic and pro-cortisol effects of PUFA, as well as the pro-androgen effects of SFA. One of those studies showed that PUFA increases cortisol synthesis even in the absence of ACTH, which suggests that they may have pituitary hormonal-like effects...
Increasing 5-AR activity has received a lot of interest lately due to its therapeutic effects on mood disorders as well as issues with excess cortisol (5-AR deactivates cortisol). Unfortunately, the official story is that there are no freely available compounds that can stimulate 5-AR activity...