Figure 3From: Improved amplification efficiency on stool samples by addition of spermidine and its use for non-invasive detection of colorectal cancerInterference of PCR amplification by spermidine. From 50 ng of DNA, the amplification curves of PCR products of the Alb gene using spermidine in SG RT-PCR are shown from C (A) and S (B). The spermidine has been used at various concentrations, ranging from 1 mM to 10 mM.Back to article page