Publications related to Crohn's disease

High field brain proton magnetic resonance spectroscopy and volumetry in children with chronic, compensated liver disease-A pilot study

Lijing Xin, Cristina Ramona Cudalbu, Bénédicte Marie Maréchal, Sarah Lachat

Background: There is increasing evidence that children or young adults having acquired liver disease in childhood display neurocognitive impairment which may become more apparent as they grow older. The molecular, cellular and morphological underpinnings o ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2023

Identifying genetic and dietary modulators of metabolic disorders using systems genetics

Xiaoxu Li

Long-term consumption of lipid-rich foods can contribute to common metabolic diseases and systemic low-grade inflammation. However, dietary responses and the development of non-communicable diseases are shaped by genetic factors and gene-by-environment int ...

EPFL2023

FOXC2 controls adult lymphatic endothelial specialization, function, and gut lymphatic barrier preventing multiorgan failure

Mauro Delorenzi, Alexis Rapin, Dominique Velin, Esther Bovay, François Renevey

The mechanisms maintaining adult lymphatic vascular specialization throughout life and their role in coordinating inter-organ communication to sustain homeostasis remain elusive. We report that inactivation of the mechanosensitive transcription factor Foxc ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Obesity-associated deficits in inhibitory control are phenocopied to mice through gut microbiota changes in one-carbon and aromatic amino acids metabolic pathways

Xavier Fernandez-Real Girona

Background Inhibitory control (IC) is critical to keep long-term goals in everyday life. Bidirectional relationships between IC deficits and obesity are behind unhealthy eating and physical exercise habits. ...

BMJ PUBLISHING GROUP2021

Dietary Fiber Is Essential to Maintain Intestinal Size, L-Cell Secretion, and Intestinal Integrity in Mice

Kristina Schoonjans

Dietary fiber has been linked to improved gut health, yet the mechanisms behind this association remain poorly understood. One proposed mechanism is through its influence on the secretion of gut hormones, including glucagon-like peptide-1 (GLP-1) and gluca ...

FRONTIERS MEDIA SA2021

NCoR1 Protects Mice From Dextran Sodium Sulfate Induced Colitis by Guarding Colonic Crypt Cells From Luminal Insult

Johan Auwerx

BACKGROUND & AIMS: Colonic stem cells are essential for producing the mucosal lining, which in turn protects stem cells from insult by luminal factors. Discovery of genetic and biochemical events that control stem cell proliferation and differentiation can ...

2020

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

Kristina Schoonjans, Alessia Perino, Maroun Bou Sleiman, 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

De novo development of proteolytically resistant therapeutic peptides for oral administration

Christian Heinis, Luciano Andres Abriata, Florence Pojer, Xudong Kong, Vanessa Carle, Kaycie Marie Butler, Jun Moriya

The oral administration of peptide drugs is hampered by their metabolic instability and limited intestinal uptake. Here, we describe a method for the generation of small target-specific peptides (less than 1,600 Da in size) that resist gastrointestinal pro ...

2020

Bile acids drive colonic secretion of glucagon-like-peptide 1 and peptide-YY in rodents

Kristina Schoonjans

A large number of glucagon-like-peptide-1(GLP-1)- and peptide-YY (PYY)-producing L cells are located in the colon, but little is known about their contribution to whole body metabolism. Since bile acids (BAs) increase GLP-1 and PYY release, and since BAs s ...

AMER PHYSIOLOGICAL SOC2019

Identification and characterisation of small-molecule inhibitors targeting STING

Simone Margret Haag

The recognition of pathogen-derived nucleic acids is a critical mechanism by which the innate immune system detects viral infection. Upon activation, nucleic acid sensors initiate the expression of type I interferons and other inflammatory mediators, subse ...

EPFL2019

Diet modulates cecum bacterial diversity and physiological phenotypes across the BXD mouse genetic reference population

Johan Auwerx, Evan Graehl Williams

The BXD family has become one of the preeminent genetic reference populations to understand the genetic and environmental control of phenotypic variation. Here we evaluate the responses to different levels of fat in the diet using both chow diet (CD, 13-18 ...

2019

Short term exposure to fine particulate matter and hospital admission risks and costs in the Medicare population: time stratified, case crossover study

Yun Wang, Christine Choirat

OBJECTIVE To assess risks and costs of hospital admission associated with short term exposure to fine particulate matter with diameter less than 2.5 mu m (PM2.5) for 214 mutually exclusive disease groups. DESIGN Time stratified, case crossover analyses wit ...

BMJ2019

Absence of specific alternatively spliced exon of CD44 in macrophages prevents colitis

Ulrich Hoffmann, Riccardo Sabatini

CD44 is a transmembrane molecule appearing in numerous isoforms generated by insertions of alternatively spliced variant exons (CD44v) and having various binding partners. CD44v7 on T cells was proposed to promote colitis by preventing T-cell apoptosis. He ...

NATURE PUBLISHING GROUP2018

Oral application of Escherichia coli bacteriophage: safety tests in healthy and diarrheal children from Bangladesh

Patrick Descombes

A T4-like coliphage cocktail was given with different oral doses to healthy Bangladeshi children in a placebo-controlled randomized phase I safety trial. Fecal phage detection was oral dose dependent suggesting passive gut transit of coliphages through the ...

Wiley-Blackwell2017

MRS studies of neuroenergetics and glutamate/glutamine exchange in rats: Extensions to hyperammonemic models

Cristina Ramona Cudalbu, Bernard Lanz, Veronika Rackayová

In vivo Magnetic Resonance Spectroscopy is a useful tool to characterize brain biochemistry as well as its alteration in a large number of major central nervous system diseases. The present review will focus on the study of the glutamate-glutamine cycle, a ...

Elsevier2017

A Monolithic Approach to Fluid–Composite Structure Interaction

Simone Deparis, Davide Forti, Annalisa Quaini

We study a nonlinear fluid–structure interaction (FSI) problem between an incompressible, viscous fluid and a composite elastic structure consisting of two layers: a thin layer (membrane) in direct contact with the fluid, and a thick layer (3D linearly ela ...

Springer Verlag2017

Intimate gut interactions: helminths and the microbiota

Nicola Harris

Changing exposure to intestinal helminths, or alterations in our intestinal microbiome, have been independently proposed to underlie the increasing incidence of chronic inflammatory diseases including allergy, autoimmunity and inflammatory bowel disease (I ...

Inst Biochemistry & Cell Biology2016

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

SIRT2 Deficiency Modulates Macrophage Polarization and Susceptibility to Experimental Colitis

Johan Auwerx, Kristina Schoonjans, Alessia Perino, Adrienne Joëlle Laurence Mottis, Alessandra Piersigilli, Keir Joe Menzies, Hiroyasu Yamamoto, Giuseppe Lo Sasso

Background: SIRT2 belongs to a highly conserved family of NAD(+)-dependent deacylases, consisting of seven members (SIRT1-SIRT7), which vary in subcellular localizations and have substrates ranging from histones to transcription factors and enzymes. Recent ...

Public Library of Science2014

Loss of Sirt1 function improves intestinal anti-bacterial defense and protects from colitis-induced colorectal cancer

Johan Auwerx, Kristina Schoonjans, Laurent Mouchiroud, Dongryeol Ryu, Elena Katsyuba, Alessandra Piersigilli, Giuseppe Lo Sasso

Dysfunction of Paneth and goblet cells in the intestine contributes to inflammatory bowel disease (IBD) and colitis-associated colorectal cancer (CAC). Here, we report a role for the NAD+-dependent histone deacetylase SIRT1 in the control of anti-bacterial ...

Public Library of Science2014