Effect of probiotics on pro-inflammatory cytokines and NF-κB activation in ulcerative colitis

Table 2 Semi-quantitative index of nuclear factor-κB p65 expression in controls and ulcerative colitis patients

Reaction	Controls	Patients	Sulfasalazine	Probiotics
NF-κB	+ (6)	++++ (6)	+++ (4)	++ (2)
Immunostaining			++ (2)	+ (4)

Brackets indicate number of samples; n = 6 for each group. The intensity of staining for nuclear factor-κB (NF-κB) is represented in a semi-quantitative evaluation: +: Weak; ++: Moderate; +++: Strong; ++++: Intense reaction.