Platinum-ruthenium-iron embedded in nitrogen-doped ordered mesoporous carbon for adrenaline electrochemical sensing study.

A novel nitrogen-doped ordered mesoporous carbon (OMC) pore-embedded growth Pt-Ru-Fe nanoparticles (Pt-Ru-Fe@N-OMCs) composite was designed and synthesized for the first time. SBA-15 was used as a template, and dopamine was used as a carbon and nitrogen source and metal linking reagent. The oxidative self-polymerization reaction of dopamine was utilized to polymerize dopamine into two-dimensional ordered SBA-15 template pores.

Effects of dietary zinc deficiency on esophageal squamous cell proliferation and the mechanisms involved.

Background: Dietary zinc deficiency has been shown to be associated with the development of esophageal cancer in humans, but the exact mechanism of action is not known.

Aim: To observe the effects of dietary zinc deficiency on esophageal squamous cell proliferation.

Methods: Thirty C57BL/6 mice were randomly divided into three groups: A zinc-sufficient (ZS) group, zinc-deficient (ZD) group, and zinc-replenished (ZR) group.

Cleansing efficacy and safety of bowel preparation protocol using sodium picosulfate/magnesium citrate considering subjective experiences: An observational study.

Background: Research data from patient reports indicate that the least bearable part of colonoscopy is the administration of laxatives for bowel preparation.

Aim: To observe the intestinal cleansing efficacy and safety of sodium picosulfate/magnesium citrate and to discuss the patients' experiences due to the procedure.

Methods: Subjects hospitalized in the International Medical Center Ward of Peking University International Hospital, Beijing, China, from April 29 to October 29, 2020, for whom the colonoscopy was planned, were enrolled.

Effect of Helicobacter pylori infection on Barrett's esophagus and esophageal adenocarcinoma formation in a rat model of chronic gastroesophageal reflux.

Objectives: To investigate the relationship between Helicobacter pylori infection and Barrett's esophagus (BE), a rat model of chronic gastroesophageal reflux with H. pylori infection was established and the degree of inflammation, incidence of BE and esophageal adenocarcinoma (EA) were evaluated.

Methods: Eight-week-old male specific-pathogen-free SD rats were divided into five groups randomly: pseudo-operation group; esophagojejunum anastomosis (EJA) group; EJA with H.

Celecoxib inhibits Helicobacter pylori colonization-related factors.

Aim: To investigate the effect of celecoxib, a selective COX-2 inhibitor, on Helicobacter pylori (H. pylori) colonization-related factors and its mechanism.

Methods: After co-incubation with celecoxib, morphology of H.