Key words: amino acid imbalance, Parkinson’s disease The content of aminoacid in blood serum of the patients with Parkinson’s disease BOGDANOVA Iryna Pages: 5-8 Ukrains'kyi Visnyk Psykhonevrolohii 2011, Volume 19, issue 3 (68) Index UDK: 616.858-008.6:547.466:612.015