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Articoli di riviste sul tema "Composés anti-inflammatoires"
Vetter, Mathieu, e Philippe Saas. "« Fort comme la mort », où comment l’efferocytose contrôle la résolution de l’inflammation". médecine/sciences 40, n. 5 (maggio 2024): 428–36. http://dx.doi.org/10.1051/medsci/2024050.
Testo completoBouyahya, A., A. Et-Touys, A. Khouchlaa, A. El-Baaboua, A. Benjouad, S. Amzazi, N. Dakka e Y. Bakri. "Notes ethnobotaniques et phytopharmacologiques sur Inula viscosa". Phytothérapie 16, S1 (dicembre 2018): S263—S268. http://dx.doi.org/10.3166/phyto-2019-0157.
Testo completoMonzango, Guy Lambert Sibo, Justin Esimo Mboloko, Arsène Lobota Mputu, Emmanuel Nzau Ngoma, Laetitia Monka Itewa, Maxime Fastrez e Emile Darai. "Endométriose et supplémentation nutritionnelle : une revue de littérature". Annales Africaines de Medecine 15, n. 2 (30 aprile 2022): e4605-e4613. http://dx.doi.org/10.4314/aamed.v15i2.9.
Testo completoAlighardashi, Abolghasem, Marie-Noëlle Pons e Olivier Potier. "Présence et devenir des médicaments dans les eaux usées urbaines, une analyse bibliographique". Revue des sciences de l'eau 21, n. 4 (20 ottobre 2008): 413–26. http://dx.doi.org/10.7202/019164ar.
Testo completoKakwi, D. G., S. Awolumate, B. S. Audu, D. O. Oshinbajo, F. A. Oyedapo, M. Y. Mohammed e K. M. Ositimehin. "Some aspects of histology of liver and intestine of Cyprinus carpio fingerlings fed raw and processed Mucuna pruriens diets". Nigerian Journal of Animal Production 48, n. 3 (6 marzo 2021): 50–62. http://dx.doi.org/10.51791/njap.v48i3.2968.
Testo completoDermane, A., K. M. Apetse, K. Assogba, A. K. P. Apeti, K. M. Guinhouya, S. Apeti, K. Anayo e A. A. K. Balogou. "Profil polymédication et pathologique des personnes âgées vues en consultation gériatrique à Lomé". Journal de la Recherche Scientifique de l’Université de Lomé 26, n. 1 (18 aprile 2024): 273–89. http://dx.doi.org/10.4314/jrsul.v26i1.33.
Testo completoMeite, Ladji, Rita Szabo, Patrick Mazellier e Joseph De Laat. "Cinétique de phototransformation de polluants organiques émergents en solution aqueuse diluée". 23, n. 1 (25 gennaio 2010): 31–39. http://dx.doi.org/10.7202/038923ar.
Testo completoNacoulma, Aminata P., Yissé Kassoum Combia, Cheick Noukani Palm, Romaric Méda e Martin Kiendrebéogo. "Caractères microscopiques, physico-chimiques et phytochimiques des poudres de quatre Méliacées à propriété anti-inflammatoire". Journal Africain de Technologie Pharmaceutique et Biopharmacie (JATPB) 2, n. 3 (20 dicembre 2023). http://dx.doi.org/10.57220/jatpb.v2i3.100.
Testo completoMaman Noura, Oumarou, Amadou Tidjani Ilagouma, Wendkouni Leila Marie Esther Belem-Kabré, Mathieu Nitiéma, Boubacar Yaro, Tata Kadiatou Traoré, Moussa Ouédraogo e Noufou Ouédraogo. "Étude phytochimique et tocolytique des macérés éthanolique des feuilles et des écorces du tronc de Sclerocarya birrea (A. Rich.) Hochst (Anacardiaceae) récoltés à Matamèye (Niger)". Journal Africain de Technologie Pharmaceutique et Biopharmacie (JATPB) 2, n. 3 (20 dicembre 2023). http://dx.doi.org/10.57220/jatpb.v2i3.101.
Testo completoBonou-Selegbe, Isanorelle, Josias B. G. Yameogo, Hermine Zime Diawara, Salfo Ouédraogo, Charles B. Sombié e Rasmané Semdé. "Optimisation de la préparation de nanoemulsions d’huile essentielle de Cymbopogon citratus (DC." Journal Africain de Technologie Pharmaceutique et Biopharmacie (JATPB) 2, n. 3 (20 dicembre 2023). http://dx.doi.org/10.57220/jatpb.v2i3.160.
Testo completoTesi sul tema "Composés anti-inflammatoires"
El, Mardi Saïd. "Synthèse de nouveaux ligands du cuivre et étude de complexes cuivriques à visée antiinflammatoire". Tours, 1996. http://www.theses.fr/1996TOUR4008.
Testo completoPinna, Guillaume François. "Analyse des mécanismes d'action de composés inhibiteurs de l'expression de cytokines inflammatoires : identification de composés d'intérêt thérapeutique". Strasbourg 1, 2003. https://publication-theses.unistra.fr/public/theses_doctorat/2003/PINNA_Guillaume_Francois_2003.pdf.
Testo completoIn chronic inflammatory diseases, among the numerous mediators there are critical ones for protective host responses, including defense against microbial invasion and tumor genesis. However, the production of specific pro inflammatory cytokines must be tightly regulated and compartmentalized to prevent their over expression that may end in chronic inflammation e. G. Crohn's disease (CD) and rheumatoid arthritis (RA). In today's therapy, TNF-a inhibition is the main target among the inflammatory cytokines. Indeed, its neutralization is of benefit in a wide range of inflammatory diseases as assessed by anti-TNF-a therapeutics in CD or RA. However, this treatment is not effective for all patients and at times unwanted secondary effects emerge. The first part of this work focused on the identification of innovative TNF-a inhibitory compounds, using an in vitro cell-based assay to screen an in-house chemical library (1600 compounds). Four molecules were found to be highly effective in reducing TNF-a production without any apparent toxicity in an animal model of acute inflammation. The investigation of several pathways controlling TNF-a expression in the monocytic cell line THP-1 led us to find that two out of four compounds act at transcriptional level and that one of them partially inhibits NF-kB translocation. Additionaly, chemical derivatives of these compounds allowed us to find a slightly more potent TNF-a inhibitor in vivo. In the second part of this work, we studied a natural triterpenic compound, Celastrol. This molecule was found to be a very potent inhibitor of TNF-a, IL-1b, IL-6 and l'IL-8 secretion by human mononuclear cells. Analysis of its mechanism of action in THP-1 suggested a pre- and post-transcriptional regulation through NF-kB translocation and p38 inhibitions. Altogether, these results indicate that Celastrol and the four compounds indentified out of the screening are of therapeutic interest in the treatment of chronic inflammatory diseases
Maurent, Kelly. "Synthèse de composés phénoliques de type diarylheptanoïde : évaluation de leurs propriétés antioxydantes et anti-inflammatoires". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30255/document.
Testo completoAtherosclerosis is one of the first cause of mortality in industrialized countries. It leads to cerebrovascular accident, stroke and all of the coronary heart diseases. Two key steps induce atherosclerosis : 1) an oxidative stress leading to the low density lipoproteins oxidationand initiating atherogenesis ; 2) a self-sustained inflammatory process allowing the last steps development of atherogenesis giving the atheroma plaque formation. This pathology is silent until it appears suddenly with the consequences mentionned above. The synthetic or natural antioxidants use to fight atherosclerosis is effective in vitro but not in vivo. One the basis of these informations, one of the proposed strategies is to inhibit both oxidative stress and inflammation. Therefore, it will be interesting to design molecules with a dual activity : antioxidant and anti-inflammatory. Natural phenolic compounds are well-know for their antioxidant activities due to the phenol moiety wich is able to trap free radicals. As part of our project, we are interested in macrocyclic diaryl heptanoids wich are phenolic compounds extracted from different plants and under-exploited despite interesting biological properties. Among them, tedarene A, a natural macrocycle type cyclodecaphane, extracted in 2012 from a marine sponge, Tedania Ignis, exhibits anti-inflammatory and antioxidant property. During this Ph.D work, the fisrt total synthesis of tedarene A was carried out. The key steps involved the stereocontrolled introduction of the diene system (Z,E) not conjugated to the phenol moiety and the cyclization of the diarylheptanoid macrocycle using Ullmann conditions. Various analogs of tedarene A were also designed and prepared. Structural changes were introduced onto the heptanoid chain part of synthesized macrocycles. Tedarene A and the various synthesized linear and macrocyclic diarylheptanoid analogues were evaluated for their antioxidant and anti-inflammatory activities
Eid, Georges. "Nouveaux dérivés lipophiles ou amphiphiles de composés phénoliques bio-sourcés à propriétés antioxydantes, anti-inflammatoires et/ ou anti-prolifératives". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0166.
Testo completoThe decrease in easily accessible petrochemical resources has given over the past ten years a growing interest in the use of raw materials of renewable origin. The primary wood processing industry generates large amounts of waste each year which are currently either recycled to other sectors such as paper mills or the panel industry, or used as a source of energy, and therefore to markets with low added value. The project is situated in this context of sustainable development, circular economy and valorization of co-products of the wood industry by the exploitation of secondary metabolites present in wood, such as phenolic compounds, and more precisely flavonoids, which are indeed of interest in various fields because of their biological activities.The objective of this work is to functionalize accessible and abundant compounds in order to obtain polyfunctional compounds with 2-in-1 properties and thus be able to simplify cosmetic formulations. Functionalization has been considered by two routes: chemical hemisynthesis and/or enzymatic catalysis.By chemical hemisynthesis we were able to obtain bi-modular compounds by combining a fatty acid and a non-glycosylated flavonoid, in this case we worked with catechin. Direct acylations on the phenolic hydroxyls of catechin have been studied and the regioselectivity has been demonstrated by NMR spectroscopy and confirmed by molecular modelling. We have also obtained tri-modular compounds by chemical hemisynthesis by combining different amino acids, as well as fatty acids of variable length with catechin. Three different trimodular structures have been synthesized.By enzymatic hemisynthesis we have synthesized tri-modular compounds, from glycosylated flavonoids, rutin and narignin, aiming for the grafting of fatty acids of different chain lengths but this time on the glycosidic part of the flavonoids. We have also synthesized penta-modular compounds resulting from the grafting of a dicarboxylic acid on naringin or rutin. These compounds comprise two flavonoid entities grafted on either side of the carbon chain of the diacid.At the end of these syntheses, the physico-chemical properties of the products were studied, in particular their solubility in water, their anti-radical properties but also the surfactant properties. Some biological activities have also been studied such as antiproliferative activity against CaCo2 cells. In order to understand the effect of the structure of the compounds on their antioxidant capacity, molecular modeling work has been undertaken; correlations between the antioxidant activity of compounds determined experimentally and chemical reactivity descriptors calculated in silico were sought
Gueiffier, Alain. "Hétérocyclisation en série imidazo [1,2-a] pyridinique : synthèse, structure, pharmacologie". Montpellier 1, 1989. http://www.theses.fr/1989MON13505.
Testo completoChaik, Asma. "Activité anti-inflammatoire des composés insaponifables d'astrocaryum vulgare". Toulouse 3, 2003. http://www.theses.fr/2003TOU30009.
Testo completoJaussaud, Philippe. "Étude de transformations métaboliques de la flunixine chez le cheval et de composés de synthèse à activité anthelminthique chez des rongeurs". Lyon 1, 1986. http://www.theses.fr/1986LYO1T083.
Testo completoTaulier, Eric. "Synthèse de tétrahétérodécalines chirales. Etude conformationnelle et application en synthèse asymétrique". Aix-Marseille 3, 1998. http://www.theses.fr/1998AIX30092.
Testo completoBreton, Jérôme. "Caractérisation des effets anti-inflammatoires de plusieurs composés polysaccharidiques (type fibre alimentaire) et de différentes souches de micro-algues (Chlorella spp)". Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10198.
Testo completoBeneficial immune effects of fibers are mainly indirect, via the prebiotic effect. Chlorellas are a green freshwater micro-algae which have been the subject of intense research in recent years. This work attemps to characterize the direct immunological effects of fibers and micro-alga strains in vitro and then in vivo for the most promising candidates. None of fibers tested induce the production of cytokine by peripheral blood mononuclear cells and intestinal epithelial cells. However, only one from all fibers almost completely inhibited the production of pro-inflammatory cytokines induced by bacteria. This fiber seems to have direct immuno-suppressive effects. Among the micro-alga tested, none of them could induce the production of cytokines and all seem to be inert. However, the product Algomed® which is an atomized form of Chlorella sorokiniana induces a strong immune response. The impact of two antagonist fibers as well as chlorella preparations has been evaluated in two murine experimental colitis model mimicking human pathologies of inflammatory bowel disease. Administration of chlorella had no effect on the colitis neither on the pro-inflammatory markers. Fibers have been administred either in long and short term treatments in order to dissociate the direct immunological effect from indirect (prebiotics) ones. In the TNBS colitis model, we highlighted a direct effect of a specific fiber on the murine immune system. This intrinsic, fiber-dependant immunomodulatory potential may extend prebiotic-mediated protection in inflammatory bowel diseases
Zou, Yu. "Dendrimères et dendrons phosphorés : synthèse, propriétés et applications en nanomédecine". Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSES093.
Testo completoThe objective of this thesis work was to prepare new phosphorous dendrimers or phosphorous dendrons, either neutral, cationic or anionic, with the aim of broadening the range of applications in the field of nanomedicine as molecules active by per se. or in combination with certain medications. In Chapter 1, the synthesis of a new polycationic phosphorus dendrimer comprising 5 pyrrolidinium groups on the surface and a protonated amine was successfully completed. This dendrimer associated with microRNA-30d makes it possible to obtain polyplexes which are transferred into cancer cells in an optimal N/P ratio of 10. These polyplexes are cytocompatible and transfer miR-30d to suppress glycolysis associated with SLC2A1. The inhibition of the migration and invasion of murine cancer cells in vitro and in vivo were thus demonstrated. This dendrimer can be considered as an important component for therapy based on the use of miR-30d. In Chapter 2, we develop a drug delivery system capable of penetrating BBB (blood brain barrier) to provide treatment for degenerative disorders. For this, the formation of a nanocomplex was developed consisting of a phosphorus dendrimer carrying hydroxyl groups on the surface, combined with fibronectin, which regulates proliferation and differentiation and cell motility. In a mouse model of Parkinson's disease, effective penetration at the level of the BBB of the phosphorous dendrimer assembly AK-123 and fibronectin was demonstrated, exerting an anti-inflammatory and antioxidant activity allowing to decrease effectively the symptoms observed and demonstrating the great potential for clinical treatment of Parkinson's disease but also hold great promise to be used to tackle other neurodegenerative disorders. In Chapter 3, the results obtained in the field of Parkinson's disease during the combined action of a generation 2 phosphorous dendrimer comprising 48 hydroxyl groups on the surface and fibronectin have encouraged us to diversify the nature and structure of these dendrimers in order to have first indications of their activity in general and to possibly approach a SAR (structure activity relationship) study. According to these, we prepared a whole set of new neutral phosphorus dendrimers of generations 1 and 2, characterized by internal structures different from those of the dendrimers used in the previous chapter, incorporating long chains on the surface and also comprising hydroxyl groups. These dendrimers have the advantage of having protonated amine groups allowing solubility in an aqueous medium. We were also able to prepare neutral and charged phosphorous dendrons. Preliminary results concerning their properties have been demonstrated. In Chapter 4, the aim of this study was focused on the synthesis of original anionic phosphorus dendrimers and the application of these dendrimers, and particularly of the dendrimer AK 137 which presents optimal anti-inflammatory activity and great efficiency for the delivery of proteins. We demonstrate that the AK-137@FN NCs association blocks the activation of certain signalling pathways (NF-kB and P13K/Akt), induces the polarization of macrophages towards M2 phenotypes, inhibits the secretion of pro-cytokines. (TNF-alpha, IL-1beta and IL6) and increases the antioxidant properties of FN in vitro. The therapeutic effects of the AK-137@FN combination have been demonstrated in ALI (acute lung injury) and AGA (acute gout arthritis) mouse models without observation of systemic toxicity