LRRK2 and Parkinson disease: The authors detected specific protein differences between LRRK2-G2019S-PD, LRRK2-G2019S-NMC, and HC, with the largest protein phosphorylation differences between LRRK2-G2019S-PD and LRRK2-G2019S-NMC, suggesting the presence of specific phosphorylation events associated with changes from asymptomatic to manifest PD [71].