VENLO, The Netherlands, May 7, 2007 (PRIME NEWSWIRE) -- QIAGEN N.V. (Nasdaq:QGEN) (Frankfurt:QIA), the world's leading provider of sample and assay technologies for research in life sciences, applied testing and molecular diagnostics, today introduced a pioneering technology which creates a new dimension of capabilities for assays targeting microRNAs (miRNAs). miRNA-related research in academia, pharma and molecular diagnostics can be considered one of the most rapidly evolving fields in today's life sciences.