Fig. 1
From: Variation of global DNA methylation levels with age and in autistic children
Variation of global DNA methylation with age. Mean global DNA methylation of 5-year age groups are shown. Error bars indicate the standard errors of the mean, and the three arrows represent (a) increasing trend at age range 1–25 years, (b) increasing trend at age range 40–55 years, and (c) decreasing trend at age range 55–75 years. The two dashed lines indicate the two age ranges (25–40 and over 75 years) where there were no significant changes in methylation