Table 2.

Histopathologic scores and BrdU labeling index in the three groups of rats^a

Group	Score	BrdU-LI (% of Cells)
^aData are ± SEM from five rats per group. BrdU-LI, 5-bromo-2′-deoxyuridine labeling index.
^bSignificantly different from Sham group.
^cSignificantly different from ARF.
Sham	0.0 ± 0.0	0.4 ± 1.7
ARF	1.3 ± 0.2^b	10.3 ± 2.6^b
ARF+IGF-I	1.9 ± 0.1^b,^c	12.0 ± 1.9^b