CAMKK2 and Parkinson disease: Furthermore, simple linear regression analysis indicated that the variations in PD patients’ temporal cortical CAMKK2 protein levels were not significantly related to their age (CAMKK2 in PD vs. age: Slope: 0.1032, p-value = 0.9025, R-squared = 0.0006124; Supplementary Figure S2A) or PMI (CAMKK2 in PD vs. PMI: Slope: -1.403, p-value = 0.1779, R-squared = 0.07137; Supplementary Figure S2B), indicating a disease-specific event not depending on PMI or age variables.