| In order to assess counting performance of the Guava ViaCount assay
with mesenchymal stem cells, twelve cell samples were obtained and
counted using both the ViaCount assay performed on the Guava PCA™
system and a trypan blue-based assay on a hemacytometer1. In addition,
four of the samples were assayed after dilution to 50% of their initial concentration.
Data for total cell counts are shown in Figure 1 along with linear
regression statistics. In this study performed by Osiris Therapeutics,
Inc., a strong correlation between the two assays was observed, as indicated
by a slope of 1.02 and an R2 value of 0.985. |
