In the same period, Jiao and collaborators [88] reported a distinct and typical NGFR/p75NTR ECD profile in AD patients, characterized by a decreased CFS and an increased serum levels, compared to other diseases (i.e., Parkinson’s disease, stroke) as well as to the control group (elderly people without neurological disorders). The gene discussed is NGFR; the disease is myalgic encephalomeyelitis/chronic fatigue syndrome.