This study assessed for the first time the association betweenthe rs823144 variant of the RAB29 gene and the relativeexpression level of RAB29 mRNA in peripheral bloodmononuclear cells (PBMCs) from PD patients and controls.The median relative expression of RAB29 mRNA in PBMCswas 1.00 (0.22–1.75) in PD patients and 0.96 (0.13–1.79) incontrols, with no statistically significant difference betweengroups ( p > 0.05). Here, RAB29 is linked to Parkinson disease.