Israel’s Weizmann Institute, working together with Israel’s Sheba Medical Center can detect inflammation in the intestines by analyzing a fecal sample for the genes expressed in the cells. It can help diagnose gastric disorders such as Crohn’s disease and ulcerative colitis and monitor their treatment.
https://wis-wander.weizmann.ac.il/life-sciences/noninvasive-test-gut-inflammation
https://gut.bmj.com/content/early/2022/01/18/gutjnl-2021-325516?rss=1