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Academic literature on the topic 'Venin – Emploi en cosmétologie'
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Dissertations / Theses on the topic "Venin – Emploi en cosmétologie"
Le, Thao Nhi. "Le frelon asiatique (Vespa velutina nigrithorax) : Stratégies d’études sur l’identification de nouvelles molécules actives pour la dermacosmétique." Thesis, Orléans, 2020. http://www.theses.fr/2020ORLE3143.
Full textThe search for new compounds to prevent or attenuate skin aging is a priority in current research in cosmetics. In this context, Asian Hornet venom (Vespa velutina nigrithorax) has been studied as a particular source of potentially bioactive molecules for dermacosmetic interest.The first study focused on the implementation of a reliable venom extraction and sampling protocol. Then, the peptide - small molecules fraction was selected to evaluate, in comparison with crude venom, the presence of active molecules with respect to antioxidant, anti-microbial (C. acnes) and enzyme inhibition (tyrosinase, elastase, collagenase) activity in-tubo and in-cellulo. These studies led to the identification in crude venom, by UHPLC-ESI-QTOF-HRMS/MS, of one molecule responsible for antioxidant activity on HaCaT keratinocytes.In a second study, a peptidomic approach based on UHPLC-ESI-QTOF-HRMS/MS followed by statistical processing (PCA, PLS-DA) was applied to the differential study of venom, according to the collection period, castes and behavior. The latter aims at evaluating the influence of these different factors on the venom molecular heritage. At the same time, in a third study, a ligand/enzyme interaction screening approach by mass spectrometry on solid-supported elastase enzymes was developed. The aim of this method is to detect the presence of inhibitors or substrates in more or less complex fractions. Two hornet venom peptides presenting in the hornet venom were identified to be capable of interacting with the enzyme elastase. Their peptide sequences were then partially obtained by de novo sequencing
Vilarem, Bertrand. "Formes nouvelles en cosmétologie." Toulouse 3, 1993. http://www.theses.fr/1993TOU32013.
Full textBourbigot, Carnot Gwénaëlle. "Etude et valorisation en cosmétologie de Himanthalia elongata (L. ) S. F. Gray et Halidrys siliquosa (L. ) Lyngbye." Nantes, 2000. http://www.theses.fr/2000NANT10VS.
Full textIndjearabian, Mélina. "Les alpha-hydroxy acides en dermo-cosmétologie." Paris 5, 1999. http://www.theses.fr/1999PA05P057.
Full textFreville, Marie-Christine. "Contribution de l'utilisation de la chitine en cosmétologie." Paris 5, 1990. http://www.theses.fr/1990PA05P140.
Full textSémizian, Carina. "Les acides de fruits en dermo-cosmétologie." Aix-Marseille 2, 1996. http://www.theses.fr/1996AIX22516.
Full textZidi, Mohamed. "Venin des Vipéridés : composition chimique et utilisation thérapeutique." Bordeaux 2, 1992. http://www.theses.fr/1992BOR2P063.
Full textRoullet, Florence. "Essais de formulation de microémulsions à partir de tensioactifs fluorés." Lyon 1, 1997. http://www.theses.fr/1997LYO1P006.
Full textFoing, Muriel. "Les méthodes d'étude des liposomes en cosmétologie." Paris 5, 1992. http://www.theses.fr/1992PA05P016.
Full textRoman, Sandrine. "La cosmétologie orale existe-t-elle ?" Toulouse 3, 1997. http://www.theses.fr/1997TOU32015.
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