49er, you're not educated enough to understand the mechanism behind how anything works, no offense brother.
The studies don't have to mean anything to you, they will still help more open-minded members of the community who can interpret their significance.
Oral steroids cause liver damage through cholestasis(when bile flow is disrupted in the liver). TUDCA is the reference drug to treat cholestasis, and not only does so with impressive potency but also causes a great decrease in liver enzymes AST/ALT.
We have many anecdotes, including OP's "The increases were rarely concerning and would drop to normal levels once I began supplementing with TUDCA."
If you want a healthier liver during oral AAS use, take TUDCA. Backed by science and real world experience.