by Kumamoto University (Left) The number of hypermethylated DNA regions in both neuronal and non-neuronal cells is reduced in the bipolar patient group (BD) compared to the healthy group (CT). (Right) Methylation status of the BDNF (brain-derived neurotrophic factor) receptor gene (NTRK2), which is important for mental and neurological functions. The upper panel shows the hypermethylated...