ncbi.nlm.nih.gov/pubmed/263...
..Conclusion: This study showed beneficial effects of CoQ10 supplementation on inflammatory cytokines and oxidative stress in rheumatoid arthritis patients.
I think this is generally a useful supplement to take especially for anyone over 40ish. Heart, Blood Pressure and lung beneficial from what I have read too. Only generally prescribed for those on Statins (ugh).
Can't quite fathom how beneficial though.
What I like about CoQ10 is that it is a natural substance that is just produced less by the body as we age. So likely to have only benefits.