Table 3.

Proliferation index (% labeled cells) before and after treatment

Crypt Segment2 g pre2 g post4 g pre4 g post
Proximal third0.5 ± 0.9a0.6 ± 1.40.3 ± 0.6a0.3 ± 0.8
Middle third11.9 ± 4.2a11.8 ± 7.212.8 ± 6.1a16.4 ± 10.3
Distal third25.2 ± 5.3a23.5 ± 8.028.7 ± 9.1a30.9 ± 7.7

NOTE: Data are expressed as mean ± SD. Proliferation index is calculated as number of labeled cells/number of total cells in that portion of the crypt which is arbitrarily divided into 3 segments.

  • aNo significant difference between pre- and posttreatment values by paired t test, at a significance level of 0.05.