Looking at the paper, the rue seed extract gave
some level of protection for that particular handful of lab rats, apparently as a model for alcohol abusing subjects. Their subjective perception of the experience was not recorded, of course.
From what I have gathered, the combined vasodilating effects of the ethanol and the rue can make for a subjectively unpleasant experience, I would surmise perhaps leading to headache or postural hypotension. This could be risky when we consider as well that both substances are known to cause impairment of balance.
The risk of falling over and getting injured is alone sufficient reason to avoid combining rue with alcohol. In other instances where liver function is being impaired it would seem there is a possibility that Peganum harmala seed extract would confer some protection to the organ.
Interestingly, this is yet another instance where a yellow plant extract benefits liver function.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli