 This study isolated and analyzed exosomes from amniotic fluid, saliva, and urine to determine their protein and RNA content which could serve as a novel platform for diagnosis. The results demonstrate that exosomes carry a cyanase which can be analyzed and offers access to the transcriptome of the host organism while the exosomal lipid bilayer protects genetic information from degradation. The minimally invasive isolation technique opens new possibilities for diagnostics. This article was authored by Janssen Johannes WG, Rupp and Kathleen, Ridinger Johannes, and others.