Comparison of Two Methods of RNA Extraction from Formalin-Fixed Paraffin-Embedded Tissue Specimens

Figure 1

Standard PCR amplification of the β-actin gene. Amplification was detectable in the samples run in lanes 2–8, 10, and 12-13, with product corresponding to a 203-bp band. No detectable amplification occurred in the samples run in lanes 9 and 11. Lane 1 contains the 100-bp ladder, and lane 14 contains the negative control with DNase/RNase-free water rather than DNA.