Fig. 2
From: DNA methylation biomarkers of intellectual/developmental disability across the lifespan
Potential for epigenetic biomarkers for IDDs from accessible tissue sources across the lifespan. Color gradient represents the higher impacts of cumulative exposures on IDD and epigenetic changes in utero and early life. Several accessible “surrogate” tissues, some specific to distinct life stages, can be used for DNA methylation analyses and biomarkers that reflect brain and cognition as well as other health conditions that develop across the life course. BioRender.com was used for some images