Figure 1From: Serum antibodies from Parkinson's disease patients react with neuronal membrane proteins from a mouse dopaminergic cell line and affect its dopamine expressionELISA reactivity of human sera with membrane proteins isolated from MN9D neuronal cells. Black bars represent reactivity of sera from 8 control individuals, and gray bars represent sera from 19 IPD patients. Bars represent the mean and standard error of the mean of five individual experiments. *P < 0.05 compared to control sera.Back to article page