Endoscopic submucosal dissection versus surgery for T1b esophageal carcinoma: a single-center retrospective study.

Introduction: Endoscopic submucosal dissection (ESD) is a preferred treatment option for superficial esophageal squamous cell carcinoma (SESCC). However, only few studies compared long-term survival outcomes of ESD with surgery, especially for T1b SESCC. This study compared the overall survival (OS), disease-free survival (DSS), recurrence-free survival (RFS), and complication rates of both, to evaluate the value of ESD in patients with T1b SESCC.

Pathological characteristics and long-term prognosis of submucosal infiltrating carcinoma of the colon and rectum below 2 cm confirmed by endoscopic submucosal dissection.

The purpose of this study was to explore the correlation between additional surgery and the clinicopathological characteristics of colorectal cancer, as well as its impact on patient prognosis. A total of 119 patients with early colorectal cancer were selected and divided into an additional surgery group (28 cases) and a non-additional surgery group (91 cases). According to the tumor size, the patients were further divided into a large diameter group (54 cases, d≥1 cm and <2 cm) and a small diameter group (65 cases, d<1 cm).

An unusual cause of hemorrhagic shock in a 14-year-old child.

A 14-year-old girl underwent colonoscopy due to repeated flesh-washing watery stools and dull pain around the umbilicus for 10 days. She felt tired for 1 month with no other significant discomfort. The hemoglobin (Hb) is 66g/L, and the red blood cell (RBC) count was 3.

Is histological healing more clinically valuable than endoscopic healing in Crohn's disease?

Objectives: Small bowel (SB) endoscopic healing has not been well explored in patients with Crohn's disease (CD). This study aimed to assess the clinical utility of SB endoscopic mucosal and histological healing in patients with CD.

Methods: In total, 99 patients with CD in clinical-serological remission were retrospectively followed after they underwent colonoscopy and double-balloon enteroscopy.

Biomarkers of Metabolomics in Inflammatory Bowel Disease and Damp-Heat Syndrome: A Preliminary Study.

Aims: This study aims to investigate the potential biomarkers of inflammatory bowel disease (IBD) and IBD with damp-heat syndrome (IBD-DH) by metabolomics.

Methods: Plasma and urine samples were collected from 15 healthy controls and 30 IBD patients, including 15 IBD-DH and 15 IBD with spleen deficiency syndrome (IBD-SD), which was coded as SF8G and SF70 according to the International Classification of Diseases Eleventh Revision (ICD-11) issued by World Health Organization. Pseudotargeted metabolomics method was used based on ultra-high-performance liquid chromatography-high-resolution mass spectrometry and triple-quadrupole mass spectrometry.

Endoscopic submucosal dissection for exploration and removal of a gastric buried foreign body.

Foreign body (FB) fully embedded in the gastrointestinal tissue forming a buried FB is rare, characterized by deceiving endoscopic appearances, e.g., erosion, ulceration, or subepithelial lesion.

Successful treatment of an enormous rectal mucosa-associated lymphoid tissue lymphoma by endoscopic full-thickness resection: A case report.

Background: Colorectal mucosa-associated lymphoid tissue lymphoma (MALToma), a rare kind of nongastric MALToma, lacks consensus on its endoscopic features and standard therapies. According to previous studies on the clinical characteristics and outcomes of colorectal MALToma, endoscopic resection remains a good therapeutic strategy.

Case Summary: A 71-year-old woman suffered intermittent hematochezia for 1 mo, accompanied with abdominal pains but without weight loss, fever, chills or fatigue.

Characterization of photosynthesis, photoinhibition and the activities of C(4) pathway enzymes in a superhigh-yield rice, Liangyoupeijiu.

Characteristics of photosynthetic gas exchange, photoinhibition and C(4) pathway enzyme activities in both flag leaves and lemma were compared between a superhigh-yield rice (Oryza sativa L.) hybrid, Liangyoupeijiu and a traditional rice hybrid, Shanyou63. Liangyoupeijiu had a similar light saturated assimilation rate (Asat) to Shanyou63, but a much higher apparent quantum yield (AQY), carboxylation efficiency (CE) and quantum yield of CO(2) fixation (PhiCO(2)).

Photosynthetic light and CO2 utilization and C4 traits of two novel super-rice hybrids.

Characteristics of photosynthetic light and CO2 use efficiency from seedling to heading stage, and C4 pathway enzyme activities in both flag leaves and lemma were compared between two newly developed super-rice hybrids (Oryza sativa L.), Liangyoupeijiu and Hua-an 3, and a traditional rice hybrid, Shanyou 63. At seedling and tillering stages, Liangyoupeijiu and Hua-an 3 had higher net photosynthetic rates (Pn) and light saturated assimilation rates (Asat) than did Shanyou 63, at both normal (360 micromol mol(-1)) and doubled (720 micromol mol(-1)) CO2 concentrations.

Photosynthetic characteristics and tolerance to photo-oxidation of transgenic rice expressing C(4) photosynthesis enzymes.

The photosynthetic characteristics of four transgenic rice lines over-expressing rice NADP-malic enzyme (ME), and maize phosphoenolpyruvate carboxylase (PC), pyruvate,orthophosphate dikinase (PK), and PC+PK (CK) were investigated using outdoor-grown plants. Relative to untransformed wild-type (WT) rice, PC transgenic rice exhibited high PC activity (25-fold increase) and enhanced activity of carbonic anhydrase (more than two-fold increase), while the activity of ribulose-bisphosphate carboxylase/oxygenase (Rubisco) and its kinetic property were not significantly altered. The PC transgenic plants also showed a higher light intensity for saturation of photosynthesis, higher photosynthetic CO(2) uptake rate and carboxylation efficiency, and slightly reduced CO(2) compensation point.