Longitudinal Study on Bacterial Production of LPC and LPA in Patients With Inflammatory Bowel Disease

Inclusion Criteria: * 18 and 70 years of age * Crohn's disease diagnosis with history of past or current moderate or severe chronic abdominal pain that persist despite colitis being in remission (absence of overt inflammation on CT or MRI imaging, and baseline fecal calprotectin of less than 200 μg/g of stool), or in presence of mild inflammation defined by colonoscopy (Simple Endoscopic Score for Crohn's Disease score: 0-10), * Ulcerative colitis diagnosis with history of past or current moderate or severe chronic abdominal pain that persist despite colitis being in remission (absence of overt inflammation on CT or MRI imaging, and baseline fecal calprotectin less than 200 μg/g of stool) or in presence of mild inflammation defined by colonoscopy (Endoscopic Mayo score: 0-1) Exclusion Criteria: * Current acid anti-secretory and antacid medications * Antibiotics, antibacterial agents or probiotics, currently, or within the last 8 weeks * Current pain treatment with opioids or NSAIDs (acetaminophen is permitted) * Alcohol or drug abuse * Concurrent systemic disease and/or laboratory abnormalities considered by investigators to be a risk or that could interfere with data collection