Table 2.

Comparisons of the number of p-Tau protein positive cells in the CA1 region of rat hippocampus (n = 5)

Groups	Preoperative	Postoperative
		2 w	4 w	8 w	12 w
Sham operation	12.34±3.56	13.25±4.16	12.21±3.06	14.06±3.23	13.81±3.78
2VO	13.15±3.63	31.25±4.08*	45.65±4.94*	58.63±5.26**,Δ	71.95±7.08**,Δ

Data were shown as mean ± SD;

^* P < 0.01, compared with sham operation group;

^** P < 0.001, compared with sham operation group;

^Δ P < 0.01, compared among the time points.