5-ASA	5-aminosalicylates
CAT	Catalase
COS	Chitosan oligosaccharides
DAI	Disease activity index
DSS	Dextran sulfate sodium
GSH-Px	Glutathione peroxidase
H&E	Hematoxylin and eosin
IBD	Inflammatory bowel disorder
IECs	Intestinal epithelial cells
IOD	Integrated optical density
LPS	Cellular endotoxin lipopolysaccharides
MDA	Malondialdehyde
MPO	Myeloperoxidase
OPA	Oligosaccharides from P. Americana
OTUs	Operational taxonomic units
P. Americana	Periplaneta Americana
PAE	P. americana extract
PMP	Phenyl-3-methyl-5-pyrazolone
ROS	Reactive oxygen species
SCFAs	Short-chain fatty acids
SOD	Superoxide dismutase
TFA	Trifluoroacetic acid
TJs	Tight junctions
TLR4	Toll-like receptor 4
VC	Ascorbic acid
ZO-1	Zonula occludens-1