Next, the distribution of the genetic causes and clinical phenotypes of the affected individuals were investigated, but no pattern could be identified that indicated a large difference between the genetic groups or between bvFTD and PPA connected to the levels of NEFM, NPTX2, VGF and AQP4 (Supplementary Fig. 2B). The gene discussed is VGF; the disease is behavioral variant of frontotemporal dementia.