View clinical trials related to Gastritis, Atrophic.
Filter by:The goal of the study is to understand whether blood levels of hormones produced or metabolized in the stomach reflect the health of the stomach lining. Specifically the study will determine whether the concentration of ghrelin, gastrin, pepsinogens and vitamin B12 reflect the condition of the stomach lining. Hormone concentrations for people with normal/mild gastritis will be compared to people with long-term inflammation of the stomach (chronic atrophic gastritis), and people with pre-cancerous cellular changes (intestinal metaplasia).
Gastric cancer has a very poor prognosis. The disease is often diagnosed at a late stage, when curative treatment options are limited or ineffective. There is a condition that predisposes to gastric cancer, known in medical terms as Gastric intestinal metaplasia (GIM). This pre-cancerous condition can be diagnosed with an endoscopic camera test, but it often very subtle and can be missed at routine endoscopy. There is evidence that about 7% of gastric cancers are missed at previous endoscopy. The Cytosponge-trefoil factor 3 (TFF-3) is a pill on a string combined to a molecular biomarker which could help early diagnosis of gastric cancer and GIM. Cytosponge-TFF3 has been showed in previous research to be useful to diagnose Barrett's oesophagus, a condition of the food pipe similar to GIM. The aim of this study is to investigate the utility of the Cytosponge in combination with molecular biomakers to diagnose GIM
This will be a pilot study investigating the feasibility of using pressurized irrigation of the stomach mucosa to obtain gastric aspirate cell samples for analysis and identification of premalignant lesions of the stomach.
Spleen Deficiency Syndrome(SDS)is a widely researched issue, but due to the limitations of the research methods, the scientific mechanism of SDS is biased and not comprehensive. SDS would be researched in this project deeply and systematically with modern life-scientific methods. Based on the previous work, the participants, with SDS, suffering from Qi deficiency syndrome--chronic superficial gastritis--chronic atrophic gastritis--gastric cancer would be included, and the corresponding research would be conducted at the molecular-cell-gastric tissue level, and at the same time, systematical biological database of SDS would be built by systematical biological methods, such as pioneered SPARS sequencing technology created in our research group, proteomics and metabonomics. Under the above work, the investigators would conduct data mining and molecular network analysis, and then verify the key functions. By analyzing the systematical biological features of syndrome and its relationships with constitution and disease, this study would provide a new basis for objective reality of syndrome, and also offer a crucial premise of revealing biological basis for syndrome correctly, which is of important theoretical and practical significance.
i. To determine whether Confocal Laser Endomicroscopy (CLE) with optical biopsy and targeted mucosal biopsy improves the diagnostic yield of gastric IM/IN/CA in high risk populations compared to WLE with standard biopsy protocol. ii. To determine whether CLE with optical biopsy and targeted biopsy, as compared to WLE with standard biopsy, can reduce the number of biopsies needed per patient for detection of gastric IM/IN/carcinoma without the loss of corresponding diagnostic yield. iii. To compare the sensitivity and specificity of CLE with WLE for the detection of gastric IM/IN/CA.