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. 2013 Jan 8;8(1):e51317. doi: 10.1371/journal.pone.0051317

Figure 2. Occurrence of DNA damage in frozen and freeze-dried lymphocytes.

Figure 2

(a) DNA breakage in fresh vs frozen lymphocytes and (b) in fresh vs freeze-dried lymphocytes. Left profile: red line = fresh (control) cell counts; green line = frozen lymphocytes cell counts; blue line = proportion of cells with damaged DNA. Right profile: red line = fresh (control) cell counts; green line = freeze-dried lymphocytes, cell counts; blue line; proportion of cells with damaged DNA. (c) Percentage of cells with DNA fragmentation (8.2% frozen and 39.2% freeze-dried cells with DNA damage) (p<0.0001, Fisher's exact test). DNA break of X-axis is the alpha t index.