Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Morphological change in the colon after intraluminal administration of acetic acid (AA). a: control group; b: AA group, colon injury characterized by distortion of normal crypt architecture, loss of goblet cells, denuded epithelium, and infiltrating lymphocyte; c: NAC group, histological changes were significantly improved by NAC treatment. A: goblet cells; B: denuded epithelium; C: lymphocyte
