Table 2.

Changes of Dopaminergic Markers in Peripheral Blood Lymphocytes in Parkinson's Disease. The Table Summarizes the Methodology Applied and the Findings Obtained. DA=Dopamine, DAT=Dopamine Transporter

Authors	Methodology	Findings
Le Fur et al. [74]	Receptor binding assay	Decreased D2-like receptor
Nagai et al. [78]	RT-PCR and Receptor binding assay	Decreased D3 receptor
Barbanti et al. [79]	Receptor binding assay	Increased D3 and D5 receptors
Caronti et al. [80]	Immunochemistry, HPLC with electrochemical detection	Decreased TH immunoreativity, Decreased intracellular DA concentration
Caronti et al. [81]	Immunochemistry	Decreased DAT immunoreactivity
Pellicano et al. [82]	Immunochemistry	Decreased DAT immunoreactivity
Buttarelli et al. [84]	Immunochemistry	Decreased DAT immunoreactivity
Pontieri and Colosimo [85]	Immunochemistry	Decreased DAT immunoreactivity