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Concept

Enzyme digestive

Publications associées (23)

Fate and effects of microplastic particles in a periphyton-grazer system

Kristin Schirmer

In the aquatic environment, microplastic particles (MP) can accumulate in microbial communities that cover submerged substrata, i.e. in periphyton. Despite periphyton being the essential food source for grazers in the benthic zones, MP transfer from periph ...

Elsevier Sci Ltd2024

Novel cathepsin inhibitors

Bruno Emanuel Ferreira De Sousa Correia, Elisa Oricchio, Aaron Simone Petruzzella

The present invention relates to a cathepsin inhibitor comprising or consisting of Formula (I) (X1)(X2)(X3)(X4)(Y)(X5)(X6)(X7) wherein (X1) is an amino acid selected from K, L, F and M; (X2) is an amino acid selected from L, A, D, E, F, G, H, I, K, M, N, S ...

2023

Metabolic, cellular and defense responses to single and co-exposure to carbamazepine and methylmercury in Dreissena polymorpha

Florian Frédéric Vincent Breider, Dominique Grandjean

Carbamazepine (CBZ) and Hg are widespread and persistent micropollutants in aquatic environments. Both pollutants are known to trigger similar toxicity mechanisms, e.g. reactive oxygen species (ROS) production. Here, their effects were assessed in the zebr ...

2022

An optimized high throughput platform, from genetic transformation to fermentation, to screen for secreted laccases in Aspergillus niger

Laure Marie Colette Leynaud-Kieffer Curran

Many challenges are faced in the conversion of biomass into advanced biofuels, one of which is finding the correct organism for the job. The filamentous fungus Aspergillus niger has been chosen as a biocatalyst for cellulose, hemicellulose, and lignin degr ...

EPFL2021

Sex Differences in Comorbidity Combinations in the Swedish Population

Patrick Karl Alois Neff

High comorbidity rates, especially mental-physical comorbidity, constitute an increasing health care burden, with women and men being differentially affected. To gain an overview of comorbidity rates stratified by sex across a range of different conditions ...

MDPI2022

In vitro acute toxicity assessment of tire tread particles using rainbow trout cell lines of gill and intestine

Kristin Schirmer, Florian Frédéric Vincent Breider, Benoît Jean Dominique Ferrari, Thibault Béranger Masset

Tire and road wear particles (TRWP) are generated by the abrasion of tires while driving, and recent questions were raised in regards to their potential contribution to microplastics released into the aquatic environment and their potential toxicological i ...

2021

Dual Valorization of Lignin as a Versatile and Renewable Matrix for Enzyme Immobilization and (Flow) Bioprocess Engineering

Jeremy Luterbacher, Stefania Bertella, Jean Thierry C Behaghel de Bueren

Lignin has emerged as an attractive alternative in the search for more eco-friendly and less costly materials for enzyme immobilization. In this work, the terephthalic aldehyde-stabilization of lignin is carried out during its extraction to develop a serie ...

2021

Microfluidics and cell-free synthetic biology in the development of new diagnostic and therapeutic platforms

Grégoire Michielin

In phenylketonuria, absence or malfunction of the phenylalanine hydroxylase enzyme results in toxic accumulation of phenylalanine in the body. An injectable recombinant enzyme therapy was recently approved and has the potential to improve the quality of li ...

EPFL2021

Patient respiratory-triggered quantitative T-2 mapping in the pancreas

Tobias Kober, Reto Meuli, Josefina Adriana Maria Bastiaansen, Tom Hilbert

Background Long acquisition times and motion sensitivity limit T-2 mapping in the abdomen. Accelerated mapping at 3 T may allow for quantitative assessment of diffuse pancreatic disease in patients during free-breathing. Purpose To test the feasibility of ...

2019

Pediatric Size Swallowable Glass Pill for Digestive Motility Analysis

Catherine Dehollain, Vincent Schlageter, Onur Kazanç, Jose Luis Merino Panadés

A glass pill for digestive motility tracking with wireless communication is presented. The pill encapsulates three magnetic transmitter coils with a 125 kHz signal, the circuitry required to control the magnetic coil output and the battery. The system prov ...

IEEE2018

Anatomy and Physiology of the Digestive Tract of Drosophila melanogaster

Bruno Lemaitre

The gastrointestinal tract has recently come to the forefront of multiple research fields. It is now recognized as a major source of signals modulating food intake, insulin secretion and energy balance. It is also a key player in immunity and, through its ...

GENETICS SOCIETY AMERICA2018

Hippo, TGF-beta, and Src-MAPK pathways regulate transcription of the upd3 cytokine in Drosophila enterocytes upon bacterial infection

Bart Deplancke

Cytokine signaling is responsible for coordinating conserved epithelial regeneration and immune responses in the digestive tract. In the Drosophila midgut, Upd3 is a major cytokine, which is induced in enterocytes (EC) and enteroblasts (EB) upon oral infec ...

Public Library of Science2017

Alkaline phosphatase-fused repebody as a new format of immuno-reagent for an immunoassay

Oliver Hantschel

Enzyme-linked immunoassays based on an antibody-antigen interaction are widely used in biological and medical sciences. However, the conjugation of an enzyme to antibodies needs an additional chemical process, usually resulting in randomly cross-linked mol ...

Elsevier2016

Oral transfer of chemical cues, growth proteins and hormones in social insects

Laurent Keller, Laure Menin, Daniel Ortiz Trujillo, Oksana Riba Grognuz

Social insects frequently engage in oral fluid exchange trophallaxis between adults, and between adults and larvae. Although trophallaxis is widely considered a food-sharing mechanism, we hypothesized that endogenous components of this fluid might underlie ...

Elife Sciences Publications Ltd2016

Label-free fast 3D coherent imaging reveals pancreatic islet micro-vascularization and dynamic blood flow

Theo Lasser, Anne Grapin-Botton, Daniel Pawel Szlag, Arno Pino Bouwens, Jérôme Extermann, Corinne Berclaz, Paul James Marchand, David Nguyen

In diabetes, pancreatic beta-cells play a key role. These cells are clustered within structures called islets of Langerhans inside the pancreas and produce insulin, which is directly secreted into the blood stream. The dense vascularization of islets of La ...

2016

Redefining the metabolic landscape through TGF-beta/Activin signaling in Drosophila melanogaster

Wen Bin Chng

Multicellular organisms assess their nutritional state and adapt their metabolic landscape to match their energy demands. In this thesis, we address a longstanding conundrum of how an organism coordinates digestive enzyme expression in response to its nutr ...

EPFL2015

Gut physiology mediates a trade-off between adaptation to malnutrition and susceptibility to food-borne pathogens

Bruno Lemaitre, Sveta Chakrabarti

The animal gut plays a central role in tackling two common ecological challenges, nutrient shortage and food-borne parasites, the former by efficient digestion and nutrient absorption, the latter by acting as an immune organ and a barrier. It remains unkno ...

Wiley-Blackwell2015

Cyclin Y phosphorylation- and 14-3-3-binding-dependent activation of PCTAIRE-1/CDK16

PCTAIRE-1 [also known as cyclin-dependent kinase 16 (CDK16)] is implicated in various physiological processes such as neurite outgrowth and vesicle trafficking; however, its molecular regulation and downstream targets are largely unknown. Cyclin Y has rece ...

Portland Press Ltd2015

Transforming Growth Factor beta/Activin Signaling Functions as a Sugar-Sensing Feedback Loop to Regulate Digestive Enzyme Expression

Bruno Lemaitre, Maroun Bou Sleiman, Wen Bin Chng

Organisms need to assess their nutritional state and adapt their digestive capacity to the demands for various nutrients. Modulation of digestive enzyme production represents a rational step to regulate nutriment uptake. However, the role of digestion in n ...

Elsevier2014

In Vitro Pancreas Organogenesis from Dispersed Mouse Embryonic Progenitors

Anne Grapin-Botton, Chiara Greggio, Filippo De Franceschi

The pancreas is an essential organ that regulates glucose homeostasis and secretes digestive enzymes. Research on pancreas embryogenesis has led to the development of protocols to produce pancreatic cells from stem cells. The whole embryonic organ can be c ...

Journal Of Visualized Experiments2014