Clinical Research Directory

UC Davis Cohort of Pre-Malignant and Malignant Gastro-Intestinal DisEases Study

To establish a prospective cohort of individuals diagnosed with gastric pre-malignant conditions (chronic gastritis, atrophic gastritis, autoimmune gastritis, intestinal metaplasia, intestinal dysplasia) to monitor and study disease progression. The Investigators will like to survey cohort participants for lifestyle behaviors and environmental exposures associated with gastric pre-malignancy and cancer. Analyzing patient biospecimens to identify and characterize host and microbiome biomarkers associated with initiation and progression of gastric pre-malignancies.

Relationship Between Diet and Gastritis

Chronic gastritis (CG) is a prevalent and persistent inflammatory condition that affects the gastric mucosa, carrying a significant global burden. Although CG may remain asymptomatic in some cases, many patients experience gastrointestinal (GI) symptoms such as epigastric pain, bloating, nausea, vomiting, and appetite loss. Diet plays a crucial role in both the development and progression of CG. there is a significant relationship between dietary behaviors, GI symptoms, and quality of life (QoL) in CG patients. Poor dietary habits have been associated with increased symptom severity, while healthier eating behaviors correlate with better physical and mental well-being. Most research has focused on dietary risk factors in gastric cancer patients, with limited studies exploring their impact on CG and its symptoms. Furthermore, while nutritional adjustments are frequently recommended in clinical practices such as reducing coffee and alcohol intake and avoiding heavy smoking, there is a lack of comprehensive studies evaluating the relationship between eating habits, food preferences, and symptom severity in CG patients