Hi there - I don't know what you found out - but if you have kidney failure problems - what I have taken is some Homeopathic remedies for my condition and it has greatly improved my kidneys.
I took Urea 200C One pill (pellet) a Day for One week on an empty stomach. I also took Benzoicum Acidum 30C - four pills (pellets) in a 9 oz water bottle - which I shook well - they I drank One third of it a day between meals.
I also take CoQ10 - 60 mg. Three times a day - and that has helped and protected my kidneys from further damage.