. 2013 Sep 11;2013:853976. doi: 10.1155/2013/853976

Table 4.

The myeloperoxidase activity (MPO) (nm) in the distal colons of rats that received rectal TNBS (to induce colitis) or saline solution (S) after treatment for 5 or 12 days with propolis hydroalcoholic solution (TNBS-P and SP) or mesalazine solution (TNBS-M). The animals were euthanized 7 or 14 days after the colitis was induced. The results are expressed as the mean ± standard deviation (n = 5).

MPO activity (OD 450 nm)
Group/time (days)	Day 7	Day 14
S	0.185 ± 0.041^a	0.166 ± 0.071^a
TNBS	0.618 ± 0.161^b	0.659 ± 0.124^b
SP	0.068 ± 0.074^a	0.180 ± 0.097^a
TNBS-P	0.720 ± 0.051^b	0.823 ± 0.029^c
TNBS-M	0.749 ± 0.172^b	0.782 ± 0.046^bc

^a,b,cThe means followed by different letters in the same column are significantly different according a to two-way ANOVA model and the Bonferroni post-test (P < 0.05).