Table 1.

Summary of transcriptional changes by ischemia or ischemia+EPO at 2 and 6 h

Change	Total	Up by EPO	Down by EPO
2 h
Up by ischemia	385	0	5
Down by ischemia	240	4	0
Unaffected	39,707	7	28
6 h
Up by ischemia	1,115	25	4
Down by ischemia	442	9	1
Unaffected	37,677	52	19

Expression changes at P < 0.05, 1.5-fold, were considered. Ischemia was compared with sham-operated rats, and EPO-treated ischemic rats were compared with ischemia alone.