Relative Gene Expression Analysis from Urine Samples of Patients with Prostate Disease
Conventional screening and diagnostic procedures in prostate complaints rely on PSA (Prostate Specific Antigen) concentration which is not specific for prostate cancer and frequently leads to unnecessary invasive procedures in order to exclude malignant disease. It is estimated that approximately 50% of persons who underwent tissue biopsy did so based on false positive PSA value. Therefore a proper and timely differential diagnosis of malignant disease using non-invasive techniques remains one of the biggest challenges in medicine. Urine is the invaluable source of biological information contained in small molecules i.e. RNA that is easily accessible and detectable using molecular genetics techniques. We describe economical and fast method for relative expression analysis applicable to any target gene using urine as a sample. Efficient non-invasive method for identification of malignant or high risk cases prove useful in reduction of patient distress during the diagnostic procedure and significantly reduce healthcare costs.
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