Biomarkers, as defined by NIH, are "characteristics that are objectively
measured and evaluated as an indicator of normal biologic processes, pathogenic
processes, or pharmacologic responses to a therapeutic intervention." A
biomarker has to be reliable, measurable, specific, and predicative.
Understanding the multivariate nature of a disease and drug response depends on
molecular profiling at epigenetic, genetic, and protein levels. QIAGEN's
PCR Arrays, microRNA Arrays, Epigenetics ChIP Arrays, Methylation PCR Arrays,
and Biology-on-Arrays can all be used to identify and validate biomarkers. See details here.
Recommended Pathways For Biomarkers