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Systematic meta-analysis and replication of genome-wide expression studies of Parkinson's disease: 2


ABSTRACT: Systematic meta-analysis and replication of genome-wide expression studies identifies molecular pathways of Parkinson's disease. Examination of substantia nigra from postmortem brains of 8 patients with Parkinson's disease (PD). The substantia nigra samples from 8 PD subjects were obtained from the Human Brain and Spinal Fluid Resource Center, VAMC, Los Angeles, CA, the Mind Unit Brain Bank at the University of Rochester, Rochester, NY, and from Dr. E. Masliah at UCSD, San Diego, CA, and 9 control subjects were obtained from the University of Rochester Alzheimer's Disease Center brain bank. The RNA was extracted using Trizol reagent (Invitrogen), DNAse treated with Qiagen DNAse, and analyzed on a bioanalyzer. The complementary RNA was fragmented and hybridized to Affymetrix human U133A arrays. The total 17 Affymetrix .CEL files were normalized to "all probe sets" in a standardized matter, and scaled to 100 by the MAS5 algorithm implemented in the Bioconductor package.

ORGANISM(S): Homo sapiens

SUBMITTER: Bin Zheng 

PROVIDER: E-GEOD-20163 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

PGC-1α, a potential therapeutic target for early intervention in Parkinson's disease.

Zheng Bin B   Liao Zhixiang Z   Locascio Joseph J JJ   Lesniak Kristen A KA   Roderick Sarah S SS   Watt Marla L ML   Eklund Aron C AC   Zhang-James Yanli Y   Kim Peter D PD   Hauser Michael A MA   Grünblatt Edna E   Moran Linda B LB   Mandel Silvia A SA   Riederer Peter P   Miller Renee M RM   Federoff Howard J HJ   Wüllner Ullrich U   Papapetropoulos Spyridon S   Youdim Moussa B MB   Cantuti-Castelvetri Ippolita I   Young Anne B AB   Vance Jeffery M JM   Davis Richard L RL   Hedreen John C JC   Adler Charles H CH   Beach Thomas G TG   Graeber Manuel B MB   Middleton Frank A FA   Rochet Jean-Christophe JC   Scherzer Clemens R CR  

Science translational medicine 20101001 52


Parkinson's disease affects 5 million people worldwide, but the molecular mechanisms underlying its pathogenesis are still unclear. Here, we report a genome-wide meta-analysis of gene sets (groups of genes that encode the same biological pathway or process) in 410 samples from patients with symptomatic Parkinson's and subclinical disease and healthy controls. We analyzed 6.8 million raw data points from nine genome-wide expression studies, and 185 laser-captured human dopaminergic neuron and sub  ...[more]

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