Establishing reliable biomarkers for assessing and validating clinical diagnosis at early prodromal stages of Parkinson’s disease is crucial for developing therapies to slow or halt disease progression. Here, we present the largest study to date using whole blood gene expression profiling from over 500 individuals to identify an 87-gene blood-based signature. Our gene signature effectively differentiates between idiopathic PD patients and controls in both a validation cohort and an independent test cohort, and further highlights mitochondrial metabolism and ubiquitination/proteasomal degradation as potential pathways disrupted in Parkinson’s disease.
Analysis of blood-based gene expression in idiopathic Parkinson disease.
Sex, Specimen part, Subject
View SamplesSexual dimorphism of the behaviors or physiological functions in mammals is mainly due to the sex difference of the brain. The goal of this study is to identify genes mediating sexaul dimorphism of the brain.
Microarray analysis of perinatal-estrogen-induced changes in gene expression related to brain sexual differentiation in mice.
Sex, Specimen part
View SamplesThe functioning of a specific tissue depends on the expression pattern of the different genes. We used microarrays to compare gene expression across different murine tissues, to get a better understanding in the expression pattern and functioning of the different tissues. With this analysis, we were not only able to identify genes that were specifically expressed in a spicific tissue but, as important, we also identified genes that were specifically repressed in a tissue, compared to al the other analysed tissues.
Tissue-specific disallowance of housekeeping genes: the other face of cell differentiation.
Sex, Specimen part
View Samples