The invention belongs to the technical field of medicines, and particularly relates to application of Northyriol in preparation of a
medicine for treating inflammatory diseases. According to the present invention, the Northoriol and the NLRP3
inflammasome have the binding capacity, and the Northoriol can inhibit the NLRP3 expression so as to reduce the IL-1beta
gene expression at the downstream of the NLRP3 expression, such that the IL-1beta
secretion in the mouse
bone marrow macrophages induced by the LPS and the Nigonicin can be significantly reduced in the concentration-
dependent manner; in an
ulcerative colitis model, Norathyriol effectively reduces a DAI
score, relieves
weight loss, colon shortening and
intestinal inflammation, and remarkably improves
pathological injuries of colon tissues, including
inflammatory cell infiltration,
epithelium shedding and crypt structure destruction. Besides, the Northyriol also has a remarkable
treatment effect on a pneumonia model, relieves
pulmonary edema and pulmonary alveolar structure damage, improves
weight loss and
T cell differentiation imbalance caused by H1N1 infection, and improves organ indexes, so that the Northyriol has dual effects of relieving
lung inflammation and regulating immune functions.