Active clinical trials for "Digestive System Diseases"

Confocal laser endomicroscopy (CLE) is a newly endoscopic device that enables microscopic view of the digestive tract. The purpose of this study is to determine if confocal laser endomicroscopy can improve detection of digestive disease include inflammation, dysplasia, and early cancer, and if confocal laser endomicroscopy has competitive advantage, compared with other device such as Narrow Band Imaging and Autofluoresecence Imaging.

In the investigators study, the investigators will focus on the screening of the related proteins and miRNA to IBS in order to reveal the possible clues or molecular mechanism for this disorder.

This study plans to understand the prevalence and clinical characteristics of pediatric functional gastrointestinal disorders in mainland China through multi-center investigation and clinical epidemiological analysis, to reveal the prevalence characteristics and related factors of functional gastrointestinal disorders in children of all ages in mainland China, to establish a diagnostic standard system for pediatric functional gastrointestinal disorders in mainland China, to provide evidence-based basis for the formulation of new Roman standard for functional gastrointestinal disorders, and to provide new ideas and treatment basis for the diagnosis and treatment of functional gastrointestinal disorders in children.

This study proposes to establish a CT radiomics-based prediction model for identifying metastasis of each station lymph nodes in gastric cancer.

Helicobacter pylori (H.pylori) is a major human pathogenic bacterium in gastric mucosa which is linked to the development of gastritis, peptic ulcer disease, mucosa-associated lymphoid tissue lymphoma and gastric cancer. However the regulatory mechanism of H.pylori-induced immune response is not clear. Long non-coding RNA (lncRNA) has recently emerged as key post-transcriptional regulators of gene expression, differentiation. The investigators had a preliminary results which THRIL (TNFα and hnRNPL related immunoregulatory lincRNA) and PACER(p50-associated COX-2 extragenic RNA) played a potential role in H.pylori induced inflammatory cascade. However, there wasn't a previous study about expression of THRIL, PACER in a human tissue. Therefore, the investigators aimed to evaluate the expression of THRIL, PACER in patients with gastrointestinal disease according to H.pylori infection.

Despite a greater understanding of NEC physiopathology, modest progress has been done in terms of intervention and prevention of the disease over the past three decades, being the mortality rate unchanged. Investigators intend to leverage our knowledge and technical expertise developed with fetal enteroids to further investigate the processes leading to NEC by deriving and performing functional studies on human intestinal enteroids generated from intestinal resection for therapeutic reasons in NEC and non-NEC patients Generate a tissue biorepository composed of: enteroids and other lamina propria cells Comparative studies of the gene expression profile of tissue, epithelial enteroids and underlying lamina propria of NEC, non-NEC, hypoxic and non-hypoxic infants In vitro functional studies for the evaluation of critical factors in NEC pathophysiology In vitro functional studies to identify the activation of processes leading to intestinal epithelium necroptosis and/or apoptosis in bacteria challenged and hypoxic conditions Correlative studies of the impact of perinatal variables on the intestinal barrier functionality at baseline and challenged with pathogens In vitro comparison of the intestinal barrier functionality in infants complicated by condition of prenatal hypoxia versus non hypoxic infants Validation the NEC enteroids as an in vitro model for the identification of treatments and prevention of NEC

The purpose of this study is to analysize the relationship between the characteristics of tongue image and the diagnosis of gastrointestinal diseases , then develop and validate a deep learning algorithm for the diagnosis of gastrointestinal diseases depending on tongue images, so as to improve the objectiveness and intelligence of tongue diagnosis. At the same time, gastrointestinal flora of common tongue images were analyzed in order to provide a microecological basis for understanding the relationship between tongue images and digestive tract diseases.

This is a multi-centered, retrospective, observational study aimed at observing the current status of the management of gastrointestinal surgery during the COVID-19 pandemic, particularly the changes on surgery protocols and other key aspects of surgical workflow, so as to share experience with colleagues both domestic and abroad.

cross sectional study to detect frequency of functional gastrointestinal disorders among schhol aged children complaining of recurrent abdominal pain

Extramural venous invasion (EMVI) is the spread of microscopic tumour cells into the veins around the tumour. Rectal cancer treatment has improved greatly over recent years. However, it is important for us to learn as much about the tumours as possible in order to develop newer therapies. Current treatments may benefit from new genetic information relating to the cancer. We hope to identify genetic differences in certain types of rectal cancer which will allow future treatments.