Fecal 16S rRNA Gene Sequencing Analysis of Changes in the Gut Microbiota of Rats with Low-Dose Aspirin-Related Intestinal Injury

Table 1

Reuter scoring criteria for the small intestinal ulcer index in rats.

Ulcer score	0	1	2	3	4	5
Ulcer degree	No ulceration	Local congestion, no ulcer	Ulcers without congestion or intestinal wall thickening	Ulcers and inflammation in 1 site	Ulcers or inflammatory reactions in 2 or more sites	Perforation