KJ VENLO, GERMANY--(Marketwire - June 25, 2008) - Company expands portfolio by adding four new sample and assay solutions for this rapidly emerging area of molecular research Venlo, The Netherlands - June 25, 2008 - QIAGEN (Nasdaq: QGEN; Frankfurt, Prime Standard: QIA) today announced the launch of four new research products for the processing and analysis of microRNA (miRNA). miRNA are short nucleic acid molecules which are considered to play key roles in gene regulation processes and also have significant implications in various diseases such as cancer. QIAGEN's new product offerings add significant capabilities to biomedical research directed towards the identification of new molecular disease targets, pharma and academic research. The products meet the growing need for ready-to-use, convenient and reliable sample and assay technologies for miRNA applications and are expected to advance scientific research in this important area of study.