The interesting part of the research is that the authors identified a common player that might progress the development of chronic diseases: high uric acid levels.
Uric acid has historically been associated with gout. But more recently, there has been growing interest in the role of uric acid on the development of chronic diseases like metabolic disease, cardiovascular disease and Alzheimer.
An interesting (imo) pop-medscience video by Dr. David Perlmutter - Uric Acid: A KEY Cause of Weight Gain, Diabetes, Heart Disease & Dementia https://www.youtube.com/watch?v=QZ6jPCcFNa8