Table 4.

Number of MMP-9 and NF-κB positive cells in each group (n=6, ‾X ±S)

Group	MMP-9	NF-κB
Sham operation group	9.31±2.96	7.17 ± 1.98
IR group	30.78±5.79▲	40.82 ± 8.73▲
TPO intervention group	22.41±4.58▲■	24.67 ± 6.33▲■

^▲Compared with the sham operation group, P<0.05; ^■Compared with the IR group, P<0.05