Publications by authors named "Tong-yu Tang"

Gastric peroral endoscopic myotomy (G-POME) is an emerging minimally invasive endoscopic technique involving the establishment of a submucosal tunnel around the pyloric sphincter. In 2013, Khashab used G-POME for the first time in the treatment of gastroparesis with enhanced therapeutic efficacy, providing a new direction for the treatment of gastroparesis. With the recent and rapid development of G-POME therapy technology, progress has been made in the treatment of gastroparesis and other upper digestive tract diseases, such as congenital hypertrophic pyloric stenosis and gastric sleeve stricture, with G-POME.

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Background: Cronkhite-Canada syndrome (CCS) is a rare sporadic polyposis syndrome that presents with gastrointestinal and ectodermal symptoms in addition to nutritional deficiencies. CCS combined with hypothyroidism is an even rarer condition, with no standard treatment guidelines.

Case Summary: The present study described 2 patients with CCS: A 67-year-old woman with concomitant hypothyroidism and 68-year-old man treated with endoscopic mucosal resection (EMR).

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Inflammatory bowel disease (IBD) is a complex chronic immune disease with two subtypes: Crohn's disease and ulcerative colitis. Considering the differences in pathogenesis, etiology, clinical presentation, and response to therapy among patients, gastroenterologists mainly rely on endoscopy to diagnose and treat IBD during clinical practice. However, as exemplified by the increasingly comprehensive ulcerative colitis endoscopic scoring system, the endoscopic diagnosis, evaluation, and treatment of IBD still rely on the subjective manipulation and judgment of endoscopists.

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There have been growing reports regarding the presence of Epstein-Barr virus (EBV) in the intestine portions of patients suffering from ulcerative colitis and Crohn's disease, collectively termed as inflammatory bowel disease (IBD). Indeed, the prevalence of EBV infection increases in IBD patients due to prolonged employment of immunosuppressive drugs including azathioprine and infliximab. In turn, coinfection with EBV increases the propensity of development of lymphoproliferative disorders in the gastrointestinal tract including Hodgkin lymphoma, non-Hodgkin lymphomas, and lymphoepithelioma-like cholangiocarcinoma.

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Article Synopsis
  • The study examines how hepatitis B surface antigen (HBsAg) interacts with beta 2-glycoprotein I (beta2GP I) to determine its role in the hepatitis B virus's ability to target the liver.
  • Researchers used Western blot techniques to analyze the binding characteristics of HBsAg with both reduced and non-reduced forms of beta2GP I, finding that their binding activities were similar.
  • The findings suggest that HBsAg's binding is influenced by specific amino acid sequences rather than the shape of beta2GP I, indicating that this interaction is significant in HBV infection and contributes to the virus's liver-targeting behavior.
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Aim: To study the relationship between microvessel density (MVD), telomerase activity and biological characteristics in hepatocellular carcinoma (HCC).

Methods: S-P immunohistochemical method and telomeric repeat amplification protocol (TRAP) were respectively used to analyze the MVD and telomerase activity in 58 HCC and adjacent normal tissues.

Results: The MVD in HCC with metastasis, lower differentiation or without intact capsule was significantly higher than that in HCC with intact capsule, higher differentiation, or without metastasis.

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Background: DNA immunization provides a promising approach to elicit protective humoral and cellular immune responses against HBV. This study was to construct an eukaryotic expression plasmid containing helper T lymphocyte epitope, which will enhance the immunogenicity of a novel hepatitis B virus (HBV) fusion protein DNA vaccine.

Methods: The target gene containing pan-DR helper T cell epitopes (PADRE) and HBsAg was amplified by polymerase chain reaction (PCR).

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