Table 1

Concentrations of human neutrophil lipocalin (HNL) and myeloperoxidase (MPO) (median, lower and upper quartiles) in perfusion fluids from sigmoidal/rectal segments of patients with proctitis and colitis, and of controls

SegmentHNL (μg/l)MPO (μg/l)
Statistical differences between the control group and patients with colitis and proctitis, as determined by the Mann-Whitney U test are indicated: *p<0.05, **p<0.01, ***p<0.001.
Statistical differences between the sigmoidal and rectal segments within the colitis and proctitis groups, as determined by Wilcoxon's signed rank test, are also indicated: †p<0.05,††p<0.01.
NS, not significant.
ProctitisSigmoidal (n=8) 13.4 (7.8–21.4)*** 17.6 (<8–76.2)*
Rectal (n=7)245 (149–557)***179 (139–581)**
ColitisSigmoidal (n=9)105 (19.6–586)***NS 83.4 (20.1–414)***NS
Rectal (n=10)358 (55.2–430)***270 (102–492)***
ControlsSigmoidal (n=18) <2†† <8
Rectal (n=18) 9.2 (3.3–13.2) <8 (<8–21.3)