Clinical Research Directory

The Prevalence and the Pathophysiological Role of Non-Helicobacter Pylori Helicobacter Spp. in Well-defined Gastric Diseases and (Pre-) Malignancies

The goal of this clinical trial is to discover the prevalence of NHPH bacteria (Non-Helicobacter pylori Helicobacter species) in patients with one of the following conditions: 1. Functional dyspepsia following the Rome IV criteria 2. Active chronic gastritis, non-H. pylori induced atrophic gastritis, intestinal metaplasia and non-H.pylori gastric dysplasia 3. Gastric cancer, including siewert type 2 and 3 esophagastric junction cancers In addition, patients undergoing bariatric surgery are included as a control group. This study will be conducted using a prospective analysis in the three targeted study populations. Biopsy specimens routinely taken during the medical procedure or via the resected material in patients belonging to the target groups will be used. Exclusion criteria: * Patients with a history of H. pylori infection diagnosed by serology, on gastric biopsy, by breath test or on antigen test in stool samples. * Pregnancy. * Underage patients (\< 18 years).

Association Between Microplastic Exposure and the Pathological Progression of Gastric Carcinogenesis

The objective of this clinical trial is to explore the correlation between the level of microplastic exposure and the risk of gastric mucosal carcinogenesis, and to evaluate the strength of its effect as an independent risk factor. The main questions it aims to answer include: Does the level of microplastic exposure increase the risk of gastric mucosal carcinogenesis? Can the correlation between the level of microplastic exposure and gastric mucosal carcinogenesis, as well as the sources of high - risk microplastic exposure, be explored through a questionnaire on external microplastic exposure? Researchers will complete a design structured questionnaire and ask participants to fill it out carefully and truthfully to determine whether the level of microplastic exposure increases the risk of gastric mucosal carcinogenesis.

To Develop Methods for the Rehabilitation of Chronic Gastroduodenal Pathology in Children.

The object of the study will be children and adolescents from 6 to 15 years old, living in the city of Tashkent and in the Tashkent region. We will study patients with various clinical forms of chronic gastroduodenal pathology (CGDP). The effect of enteral oxygen therapy in the recovery of patients with CGDP due to the positive effect of the active form of oxygen on the hematological system and on the regenerative processes in the gastrointestinal tract will be studied. At the same time, the effect of enteral oxygen therapy on enhancing the effectiveness of eradication therapy during the treatment of carrier Helicobacter pylori due to the neutralization of the products of urea hydrolysis around bacteria under the action of reactive oxygen species will be studied.