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Academic literature on the topic 'Molécules bioactives – Emploi en thérapeutique'
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Journal articles on the topic "Molécules bioactives – Emploi en thérapeutique"
Benamara, D., Z. Benamara, and S. Benamara. "Bénéfices santé des infusions végétales dans le traitement des pathologies à virus : aspects pratiques et théoriques concernant la Covid-19 (synthèse bibliographique)." Phytothérapie 19, no. 3 (June 2021): 134–41. http://dx.doi.org/10.3166/phyto-2021-0284.
Full textDissertations / Theses on the topic "Molécules bioactives – Emploi en thérapeutique"
Mayer, Claire. "Effets préventifs des micro-algues marines et de leurs molécules bioactives sur le syndrome métabolique et l’obésité." Thesis, Le Mans, 2019. http://www.theses.fr/2019LEMA1036.
Full textMetabolic syndrome is a pathophysiological state, including hyperglycemia, dyslipidemia and abdominal obesity as the main metabolic risk factors. This syndrome can also be associated with inflammation, insulin resistance, oxidative stress and nonalcoholic hepatic steatosis (NAFLD). Omega 3 polyunsaturated fatty acids (omega 3 PUFA) from fish oils exert protective effects against metabolic disorders associated with obesity. In an unfavourable economic and environmental context of fish oil production, marine microalgae could be an alternative source of omega 3 PUFA and have an interest for human nutrition. The objective of this work was to study the impact of the marine microalgae Phaeodactylum tricornutum (Phaeo), Tisochrysis lutea (Tiso) and Diacronema lutheri (Dia), used as food supplement, at a dose of 12%, in high-fat fed Wistar rats. The effects of extracts of total lipids and carotenoids from Phaeo were studied in vitro on palmitate-treated human hepatic HepG2 cells to mimic NAFLD. In vivo, the three studied microalgae have preventive effects on metabolic disturbances associated with the metabolic syndrome, with a greater efficiency for Phaeo. In vitro, the study demonstrated the preventive effect of lipid and carotenoid extracts from Phaeo, in the hepatic accumulation of triglycerides and cholesterol
Ejjoummany, Abdelaziz. "Design et fonctionnalisation d’hétérocycles originaux de type bicycliques [5-5] et tricycliques [6-5-6] à visée thérapeutique potentielle." Thesis, Orléans, 2020. http://www.theses.fr/2020ORLE3141.
Full textThe access to new original biologically active heterocyclic compounds, is one of the main objectives of our research group. In this context, the main purpose of this thesis is the design of three new families of heterocyclic compounds containing a pyrazolic motif that may exhibit biological activities, namely pyrido[1',2': 1.5]pyrazolo[4,3-d]pyrimidine, pyrrolo[3,4-c]pyrazole and pyrazolo[5,1-b]thiazole.This manuscript is essentially dedicated to a methodology work describing the different routes of access to these originals and potentially modular tricyclic and bicyclic precursors. The reactivity of these key synthons is then studied towards aromatic nucleophilic substitutions reactions and various pallado-catalyzed methods of functionalization (Activation with PyBrOP- (hetero) arylation, Liebeskind-Srogl, Suzuki-Miyaura, Buchwald-Hartwig, C-H arylation, aromatic nucleophilic substitution) to develop interesting libraries built around these unusual structures, thus opening numerous pharmacological perspectives
Robert, Valérie. "Les céramides : des molécules clés de l'épiderme." Nancy 1, 1996. http://www.theses.fr/1996NAN10073.
Full textConan, Sylvie. "Quinolones antibactériennes : synthèses de nouvelles fluoroquinolones et mise au point sur les molécules récentes." Paris 5, 1993. http://www.theses.fr/1993PA05P037.
Full textFoliot, Pascale. "Molécules génératrices de monoxyde d' azote : synthèse, mode de libération, applications pharmacologiques." Paris 5, 1995. http://www.theses.fr/1995PA05P217.
Full textMeyer, Maxime. "Conception et synthèse de nouvelles molécules bioactives duales : vers des composés antagonistes AT1 et agonistes PPAR[gamma]." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0221.
Full textSome angiotensin II-type 1 receptor (AT1) antagonists, used for blood pressure control, exhibit also an activity on peroxisome proliferator activated receptor [gamma] (PPAR[gamma]), which is involved in the control of glucose metabolism. Such compounds could be promising drugs for the treatment of both hypertension and type II diabetes, which are often concomitant. Therefore, we have rationally designed molecules potentially able to interact with both receptors involved in these diseases. We used the "design multiple ligands" concept, as previously developed by industrial pharmacists, to build up a diversified molecule set via combination of both pharmacophores of AT1 and PPAR[gamma] receptor antagonists and agonists, respectively. Molecular modeling experiments (docking) on PPAR[gamma] were conducted to rationalise the synthesis and allow us to predict in some extent the agonistic activity of the studied compounds
Morin, Marie-Pierre. "Les polyphénols du thé vert : des molécules à double action contre la maladie parodontale." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26448.
Full textMollet, Chloé. "Identification et caractérisations physico-chimiques et pharmacologiques de nouvelles molécules bioactives isolées à partir de venins d’animaux : exemple des peptides antimicrobiens." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0352.
Full textThe research for new bioactive molecules which can be used in therapeutic is a major public health issue, particularly in the treatment of certain diseases such as bacterial infections.The natural resistance of bacteria consecutive to overuse of antibiotics have resulted in the selection of pathogenic multi-drug resistant bacteria. Over the last few decades, resistance to conventional antibiotics has limited treatment options, resulting in a significant increase in mortality and morbidity in hospitals. Moreover, since 1970, only two new classes of antibiotics have been placed on the market. Venoms are known to be a rich source of unique and innovative pharmacologically active substances, such as antimicrobial peptides (PAMs), which represent an original alternative to small molecules for the development of new active and non-resistance inducing antibiotics.In our study, among the 200 venoms of animals studied for their antibacterial properties, at least six PAMs were isolated from an insect venom. The original peptide 1 inhibits the growth of Gram positive and negative bacteria but shows a high hemotoxicity (TI = 1,6-3,2). The solid phase synthesis of structural analogs allowed to identify R1W8 and I1N11, less toxic (TI = 18 et >800 respectively). The preliminary results of the action mechanism study suggest that these peptides have a pore-forming action on bacteria cytoplasmic membrane. These peptides can be used as models for the development of new antimicrobial agents
Balde, Elhadj Saïdou. "Identification de nouvelles molécules à potentiel anticancéreux." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210113.
Full textDoctorat en Sciences biomédicales et pharmaceutiques
info:eu-repo/semantics/nonPublished
Milane, Hadi. "La quercétine et ses dérivés : molécules à caractère pro-oxydant ou capteurs de radicaux libres;études et applications thérapeutiques." Université Louis Pasteur (Strasbourg) (1971-2008), 2004. https://publication-theses.unistra.fr/public/theses_doctorat/2004/MILANE_Hadi_2004.pdf.
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