BARELLI , Hélène

Background: Previous studies have shown that Alzheimer's disease (AD) is characterised by significant alterations of omega6 and omega3 polyunsaturated chains (PC) incorporated in phospholipids. Investigating the dynamics of PC changes during the natural history of AD, in the brain as well as in the blood, is key for highlighting the role of...

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Nous ́etudions la validit ́e des mod'eles de r ́eaction-diffusion de type Fisher-KPP pour la simulation de migration de feuillets cellulaires. Pour cela, nous avons effectu ́e des observations exp ́erimentales sur les monocouches de cellules MDCK. Les videoscopies obtenues sont segment ́ees et binaris ́ees, permettant d'obtenir avec pr ́ecision...

We address in this paper the ability of the Fisher-KPP equations to render some of the dynamical features of epithelial cell-sheets during wound closure. Our approach is based on nonlinear parameter identification, in a two-dimensional setting, and using advanced 2D image processing of the video acquired sequences. As original contribution, we...

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