... line), in the presence of 100 lM neurotoxin (•, dotted line), in thepresence of 200 lM neurotoxin ( , dottedline) and in the presence of neurotoxin and 50 lM dopamine (h, dashed line).Modulation ... overexpressing a-synuclein have shown theformation of aggregates of the protein on exposure todopamine [16]. In vitro experiments probably provide abetter understanding of the role of various interactingcomponents. ... (C), in the presence of 100 lM MPP+(D), in the presence of 200 lM MPP+(E), in the presence of 100 lM MPTP and 50 lM dopamine (F), in the presence of 200 lM MPTP and 50 lM dopamine (G), in the...