Mov Disord. 2013 May 27. doi: 10.1002/mds.25507. [Epub ahead of print]
González-Aramburu I, Sánchez-Juan P, Jesús S, Gorostidi A, Fernández-Juan E, Carrillo F, Sierra M, Gómez-Garre P, Cáceres-Redondo MT, Berciano J, Ruiz-Martínez J, Combarros O, Mir P, Infante J.
Source
Service of Neurology, Universitary Hospital Marqués de Valdecilla (IFIMAV), University of Cantabria (UC), Santander, Spain.
Abstract
BACKGROUND:
Low serum uric acid (UA) levels have been associated with increased Parkinson's disease (PD) risk and accelerated disease progression. We analyzed the effect of polymorphisms in 9 genes influencing serum UA concentration on the risk of PD.
METHODS:
We genotyped SLC2A9 rs734553, ABCG2 rs2231142, SLC17A1 rs1183201, SLC22A11 rs17300741, SLC22A12 rs505802, GCKR rs780094, PDZK1 rs12129861, LRRC16A+SCGN rs742132, and SLC16A9 rs12356193 in 1061 PD patients and 754 controls. For each subject we calculated a cumulative genetic risk score (GRS), defined as the total number of PD-risk alleles (range, 2-15) associated to lower serum UA levels. Serum UA levels were measured in a subgroup of 365 PD cases and 132 controls.
RESULTS:
Serum UA levels were significantly lower in men with PD than in controls. Subjects (both men and women) carrying more than 9 risk alleles (third GRS tertile) had a 1.5 higher risk of developing PD than subjects with less than 8 risk alleles (first GRS tertile). An inverse correlation was observed between higher GRS and lower serum UA concentration in both men and women.
CONCLUSIONS:
Genetic variability influencing serum UA levels might modify susceptibility to PD. © 2013 Movement Disorder Society.
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