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Table 2 Histological disease scoring system

From: Lactobacillus paracasei R3 protects against dextran sulfate sodium (DSS)-induced colitis in mice via regulating Th17/Treg cell balance

Score Histological features
0 Normal colonic mucosa
1 Loss of one-third of the crypts
2 Loss of two-third of the crypts
3 The lamina propria is covered with a single lay inflammatory cell infiltration is present
4 Erosions and marked inflammatory cell infiltra