IXICO PLC (LSE:IXI, OTC:PHYOF, FRA:PYPB) has expanded its scientific network in Alzheimer's and Parkinson's disease, adding three senior specialists to its advisory board and launching new Parkinson's research collaborations. The neuroscience imaging and biomarker analytics group said Professor Jeffrey Cummings and Professor Charles DeCarli have joined as Alzheimer's disease advisers, while Professor Stéphane Lehéricy has joined in the field of Parkinson's disease.