Figure 1.
Effects of space radiation on the DNA methylation status of retrotransposon LINE-1 in the mouse heart. (A) Methylation of LINE-1 ORF2, as measured by methylation-sensitive real-time PCR. (B) Methylation of LINE-1 ORF1, as measured by pyrosequencing. Data are presented as mean ± SE. *p≤0.05, **p≤0.01, ANOVA with Dunnett’s test.