Fig. 2.

Schematic overview of studies. Observation and intervention studies were evaluated in relation to measurements of different redox biomarkers. Depicted in light yellow are measured exogenous antioxidants in blood, turquoise shows endogenous antioxidants and oxidative stress markers are depicted by pink color. Both, healthy participants as well as patients were included. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)