Figure 4

PERV expression level in different tissues. The expression level and comparisons are shown here with quantitative analysis results of PERV expression in different organs of xeno-1 pig 002 and a landrace pig using real-time PCR specific for PERV-pol mRNA normalized to 1 μg total RNA, student’s t-test was performed for static analysis between groups. The black bars indicate the viral load of the XENO-1 herd animal and the white bars indicate the commercial Landrace pig samples. *, P < 0.05.