Table 4.

Histological score (mean ± SE)

Group	Time point
	3	6	12
Sham	1.67 ± 2.16	0.50 ± 0.55	0.50 ± 0.55
PP	8.83 ± 1.94b	7.83 ± 0.75b	7.50 ± 1.05b
SAP	9.67 ± 1.37b	10.33 ± 1.21bd	11.33 ± 1.75bd

^bP < 0.01 vs sham,

^dP < 0.01 vs PP.