Figure 3From: A comparison of cryopreservation methods: Slow-cooling vs. rapid-cooling based on cell viability, oxidative stress, apoptosis, and CD34+ enumeration of human umbilical cord blood mononucleated cellsOne result of the TUNEL assay on cells that were previously cryopreserved. The percentage of cells experiencing DNA fragmentation (M1) was ± 1.15%, while that of cells that did not experience DNA fragmentation was 98.85%.Back to article page