Single molecule array measures of LRRK2 kinase activity in serum link Parkinson’s disease severity to peripheral inflammation oleh Yuan Yuan, Huizhong Li, Kashyap Sreeram, Tuyana Malankhanova, Ravindra Boddu, Samuel Strader, Allison Chang, Nicole Bryant, Talene A. Yacoubian, David G. Standaert, Madalynn Erb, Darren J. Moore, Laurie H. Sanders, Michael W. Lutz, Dmitry Velmeshev, Andrew B. West