Colonoscopy

Bile Acids Signal via TGR5 to Activate Intestinal Stem Cells and Epithelial Regeneration

Kristina Schoonjans, Maroun Bou Sleiman, Alessia Perino, Giovanni Sorrentino, Ece Yildiz, Gaby El Alam

BACKGROUND & AIMS: Renewal and patterning of the intestinal epithelium is coordinated by intestinal stem cells (ISCs); dietary and metabolic factors provide signals to the niche that control ISC activity. Bile acids (BAs), metabolites in the gut, signal nu ...

2020

miR-511-3p, embedded in the macrophage mannose receptor gene, contributes to intestinal inflammation

Michele De Palma, Mario Leonardo Squadrito

MiR-511-3p is embedded in intron 5 of the CD206/MRC1 gene Mrc1, expressed by macrophage and dendritic cell populations. CD206 and miR-511-3p expression are co-regulated, and their contribution to intestinal inflammation is unclear. We investigated their ro ...

Nature Publishing Group2016

Instrumentation of a Clinical Colonoscope for Surgical Simulation

Hannes Bleuler, Evren Samur, Lionel Flaction

This paper describes the instrumentation of a clinical colonoscope needed for a novel colonoscopy simulation framework. The simulator consists of a compact and portable haptic interface and a virtual reality environment to provide real-time visualization. ...

2008

A modular simulation framework for colonoscopy using a new haptic device

Hannes Bleuler, Evren Samur, Ulrich Spälter

We have developed a multi-threaded framework for colonoscopy simulation utilising OpenGL with an interface to a real-time prototype colonoscopy haptic device. A modular framework has enabled us to support multiple haptic devices and efficiently integrate n ...

IOS Press2008

Clinical photodynamic therapy for superficial cancer in the esophagus and the bronchi: 514 nm compared with 630 nm light irradiation after sensitization with Photofrin II

Hubert van den Bergh, Georges Wagnières

Photodynamic therapy (PDT) for cancer in the esophagus and bronchi with red (630 nm) light may occasionally lead to wall perforation and fistula. Therefore, the clin. use of a less penetrating wavelength (514 nm) was investigated for the curative treatment ...

1998