The American Gastroenterological Association recently released a clinical practice guideline on the use of biomarkers in the management of ulcerative colitis (Gastroenterology 2023;164[3]: 344-372). Lead author Siddharth Singh, MD, a gastroenterologist and an associate professor at UC San Diego Health, told Gastroenterology & Endoscopy News about the impetus for the guideline and what it means to GI