Table 2.

Reproducibility of Arrays

Treatment	Regression	Correlation coefficient
Saline	1.1271x–1.280	0.9484
LPS	0.9459x–1.040	0.9715
SP	1.1363x–0.126	0.9528
Antigen	0.9245x–0.620	0.9840

Mice were treated with SP, LPS, antigen, and saline and sacrificed 24 hours after stimulation. Bladders from all experimental treatments were randomly distributed into the following groups: A) RNA extraction (n = 3); B) replicate of RNA extraction (see Materials and Methods). Regression lines were obtained by plotting gene expression results of group A versus B.