The LRRK2 R1441G+M1646T haplotype is associated with slower motor symptom progression in Parkinson's disease
This study demonstrates that Parkinson's disease patients carrying the LRRK2 R1441G+M1646T haplotype experience significantly slower motor symptom progression compared to those with sporadic PD or the M1646T variant alone, highlighting a distinct, milder disease trajectory associated with this specific genetic combination.