Concept

Acide gras

Publications associées (265)

Culture conditions affect fatty acid content along with wound-activated production of polyunsaturated aldehydes in Thalassiosira rotula (Coscinodiscophyceae)

The nutritional value of diatoms for grazers has been frequently addressed in experiments. However, little is known about the effects of culture conditions on the quality of algae as food for higher trophic levels. We examined the fatty acid composition of ...

2010

Transcriptional regulation of lipid homeostasis in mycobacteria

Stewart Cole, Claudia Sala

Mycolic acids are major components of the cell envelope of mycobacteria, such as Mycobacterium tuberculosis, and play an important role in its architecture, impermeability and interaction with the environment. Synthesis of mycolic acids is carried out by t ...

2010

The biphenyl-monitored effective size of unsaturated functional or fluorinated ortho substituents

The size of a series of typical substituents has been probed by dynamic NMR measurements of the barriers to aryl-aryl rotation of the corresponding biphenyls. The resulting B values are meaningful because only mono-ortho substituted compounds were investig ...

2010

Association of hemolytic activity of Pseudomonas entomophila, a versatile soil bacterium, with cyclic lipopeptide production

Bruno Lemaitre, Christoph Keel

Pseudomonas entomophila is an entomopathogenic bacterium that is able to infect and kill Drosophila melanogaster upon ingestion. Its genome sequence suggests that it is a versatile soil bacterium closely related to Pseudomonas putida. The GacS/GacA two-com ...

2010

Influence of physical factors and geochemical conditions on groundwater acidification during enhanced reductive dechlorination

David Andrew Barry, Alessandro Brovelli, Clare Robinson

Enhanced reductive dehalogenation is an attractive in-situ treatment technology for chlorinated contaminants. The process includes two acid-forming microbial reactions, that is, fermentation of an organic substrate to hydrogen and short chain fatty acids f ...

2010

Pd-Catalyzed Intramolecular Oxyalkynylation of Alkenes with Hypervalent Iodine

Jérôme Waser, Stefano Nicolai, Davinia Fernández González, Stéphane Erard

The first example of intramolecular oxyalkynylation of nonactivated alkenes using oxidative Pd chemistry is reported. Both phenol and aromatic or aliphatic acid derivatives could be used under operator-friendly conditions (room temperature, technical solve ...

American Chemical Society2010

A tissue-engineered model of the intestinal lacteal for evaluating lipid transport by lymphatics

Melody Swartz, Sandeep Raghunathan, James Brandon Dixon

Lacteals are the entry point of all dietary lipids into the circulation, yet little is known about the active regulation of lipid uptake by these lymphatic vessels, and there lacks in vitro models to study the lacteal-enterocyte interface. We describe an i ...

Wiley-Blackwell2009

Multi-physical processes in geomechanics. An introduction to constitutive modeling and coupling aspects

Lyesse Laloui

This paper is the basis for a course dedicated to the geomechanics modelling, taking into account multiphysics couplings. A number of different coupling are discussed, with respectively the fluid flow (saturated and unsaturated) and the thermal transfers i ...

2009

Structure-activity relationship study of betulinic acid, a novel and selective TGR5 agonist, and its synthetic derivatives: potential impact in diabetes

Johan Auwerx, Kristina Schoonjans

We describe here the biological screening of a collection of natural occurring triterpenoids against the G protein-coupled receptor TGR5, known to be activated by bile acids and which mediates some important cell functions. This work revealed that betulini ...

2009

Desiccation shrinkage and its controlling properties: multiphysics

Lyesse Laloui, Hervé Péron

We examine the pore space evolution during saturated stage of soil drying as obtained via porosimetry. This is modeled at a microscale using Poiseuille flow through the capillary vessels of the size of the actual modal pores, with deformable walls driven b ...

CIMNE2009

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