Academic literature on the topic 'Propriétés antimicrobiennes'
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Journal articles on the topic "Propriétés antimicrobiennes":
Tittikpina, NK, A. Agban, KA Gbogbo, YP Houkou, H. Pereki, K. Batawila, and K. Akpagana. "Évaluation des propriétés antimicrobiennes de Pterocarpus erinaceusDaniellia oliveri." International Journal of Biological and Chemical Sciences 7, no. 4 (February 20, 2014): 1586. http://dx.doi.org/10.4314/ijbcs.v7i4.15.
DUCROT, C., D. FRIC, A. C. LALMANACH, V. MONNET, P. SANDERS, and C. SCHOULER. "Perspectives d’alternatives thérapeutiques antimicrobiennes aux antibiotiques en élevage." INRA Productions Animales 30, no. 1 (June 14, 2018): 77–88. http://dx.doi.org/10.20870/productions-animales.2017.30.1.2234.
Diarrassouba, Dolourou, Solange Aka, Karamoko Ouattara, Issa Bagre, Nanga Yesse Zinzindorf, Koffi Marcellin Dje, and Yao Guillaume Loukou. "Evaluation of the phytochemical composition and antimicrobial properties of two aromatic plants used in the production of sweet wort and tchapalo, two artisanal beverages from Côte d'Ivoire." International Journal of Biological and Chemical Sciences 14, no. 9 (March 25, 2021): 3215–30. http://dx.doi.org/10.4314/ijbcs.v14i9.19.
Kpemissi, Eyana Amana, Komlan Batawila, Kouami Kokou, Kossi Koumaglo, Comlan de Souza, Philippe Bouchet, and Koffi Akpagana. "Propriétés antimicrobiennes de trois plantes psammophiles du littoral togolais menacées de disparition." Acta Botanica Gallica 150, no. 1 (March 2003): 107–15. http://dx.doi.org/10.1080/12538078.2003.10515990.
Balsamo, A. "Synthèses et propriétés antimicrobiennes de (E)-3-aminoxy-2-méthoxyimino propionyl pénicillines et céphalosporines." European Journal of Medicinal Chemistry 25, no. 3 (April 1990): 227–33. http://dx.doi.org/10.1016/0223-5234(90)90205-h.
Alitonou, Guy, Félicien Avlessi, Valentin D. Wotto, Edwige Ahoussi, J. Dangou, and Dominique C. K. Sohounhloué. "Composition chimique, propriétés antimicrobiennes et activités sur les tiques de l'huile essentielle d'Eucalyptus tereticornis Sm." Comptes Rendus Chimie 7, no. 10-11 (October 2004): 1051–55. http://dx.doi.org/10.1016/j.crci.2003.11.014.
Adeyemi, D. K., A. O. Adeluola, M. J. Akinbile, O. O. Johnson, and G. A. Ayoola. "Green synthesis of Ag, Zn and Cu nanoparticles from aqueous extract of Spondias mombin leaves and evaluation of their antibacterial activity." African Journal of Clinical and Experimental Microbiology 21, no. 2 (February 17, 2020): 106–13. http://dx.doi.org/10.4314/ajcem.v21i2.4.
Hilan, C., D. Bouaoun, J. Aoun, R. Sfeir, and F. Garabeth. "Propriétés antimicrobiennes et toxicité par détermination de la DL50 de l’huile essentielle de Prangos asperula Boissier." Phytothérapie 7, no. 1 (February 2009): 8–14. http://dx.doi.org/10.1007/s10298-008-0357-4.
Djeri, B., A. Awussi, K. Anani, G. Boguido, K. Soncy, Y. Adjrah, T. Tchacondo, Y. Ameyapoh, LM Bawa, and DS Karou. "Évaluation des propriétés antimicrobiennes des javels vendues à Lomé sur quelques germes isolés de l’eau de consommation." Journal of Applied Biosciences 97 (March 31, 2016): 9152. http://dx.doi.org/10.4314/jab.v97i1.2.
Oyedele, A. O., and E. O. Akinkunmi. "Comparative evaluation of hydrophilic bases for improved delivery of Benzoic acid and Salicylic acid in antimicrobial ointment." African Journal of Clinical and Experimental Microbiology 22, no. 1 (January 26, 2021): 74–87. http://dx.doi.org/10.4314/ajcem.v22i1.10.
Dissertations / Theses on the topic "Propriétés antimicrobiennes":
Thiebault, Nicolas. "Propriétés antimicrobiennes et anti-inflammatoires de saccharides : étude structure / activité." Amiens, 2008. http://www.theses.fr/2008AMIE0100.
The aim of this work was to synthesize and characterize the carbohydrates derivatives modified in anomeric position or in primary position regioselectively. In the first time, a regioselective disubstitution of maltotriose (DP3) was carried out and optimized in only one step giving a key intermediary to the accesses of dialkylmaltotriosides derivatives. Then, we carried out the synthesis of S-alkylglycosides and O-alkylglycosides modified in anomeric position, with good yields, in order to undertake a study structure/activity. In the second time, we evaluated the antimicrobial properties of all these compounds. We observed that the S-alkylglycosides derivatives exhibit weak or no activity whereas the O-alkylmaltodextrines compounds alone or in mixture showed interesting antimicrobial activities. In the third time, an evaluation of the anti-inflammatory drug activity of all these compounds was carried out. Once again, the S-alkylglycosides derivatives presented weak or no activity, while the O-alkylmaltodextrines derivatives alone showed significative anti-inflammatory drug activities. Moreover, mixtures of the latter led to a synergy of action on the inhibition of IL8 never yet described in the literature
Mandoukou, Landry. "Etude des propriétés antimicrobiennes d'ologosaccharides cycliques naturels et fonctionnalisés : les cyclodextrines." Amiens, 2006. http://www.theses.fr/2006AMIE0609.
Poupet, Cyril. "Caractérisation in vivo des propriétés antimicrobiennes de la souche probiotique Lcr35®." Thesis, Université Clermont Auvergne (2017-2020), 2020. http://www.theses.fr/2020CLFAC008.
Antibiotics and antifungals are one of the greatest discoveries of medicine and have helped save millions of lives. However, their effectiveness is threatened by the adaptation of microorganisms that become resistant. This phenomenon is particularly related to the abnormally high consumption of antimicrobial molecules, especially in France. Even though these resistances are mainly acquired by bacteria, pathogenic yeasts such as the genus Candida do not escape the rule. Therefore, the scientific community and health services must implement as soon as possible alternatives to traditional drugs. Among these alternatives, the use of probiotic microorganisms whose antifungal potential has already been demonstrated using preclinical models (cell cultures, laboratory animals) and clinical studies is particularly promising. This is the case of the Live Biotherapeutic Microorganism Lactobacillus rhamnosus Lcr35® strain whose anti-C. albicans has been demonstrated in previous work but failed to describe the mechanisms of action. Understanding them has become a strategic need for the development of new treatments for humans.An innovative experimental approach, using the nematode model Caenorhabditis elegans, has been implemented. The aim was to simulate a fungal infection and treat it with Lcr35® using preventive and curative approaches. These were followed by means of tests of longevity and survival of the host, by the study of its transcriptome (in a targeted and global way), all in connection with the follow-up of the activity of a factor transcription, DAF-16. We thus demonstrated that Lcr35® induced a significantly increased survival of the host, including after infection by Candida. The analysis of the transcriptome of C. elegans and the use of mutant strains showed the involvement of the p38 MAPK and DAF-2 / DAF-16 signaling pathways, pathways involved in longevity and pathogen control. Also, in vitro Caco-2 intestinal cell assays showed significant inhibition of pathogen growth and adhesion by Lcr35®. These results suggest that the bacterium Lcr35® has a direct action on the pathogen causing its death but also by modulating the transcriptional response of the host via highly conserved signaling pathways. Further study, targeting the host metabolome, would allow a better understanding of the mechanisms and adapt the industrial design of LBM according to the therapeutic target
Baixe, Sébastien. "Développement d’un hydrogel injectable à propriétés antimicrobiennes pour la prévention des péri-implantites." Thesis, Strasbourg, 2019. https://publication-theses.unistra.fr/restreint/theses_doctorat/2019/Baixe_Sebastien_2019_ED182.pdf.
Periimplant diseases are an oral infection caused by bacteria, especially P. gingivalis that is a periodontal pathogen involved in inflammatory response, leading to a destruction of implant-supporting tissues (periimplantitis). Currently, effective treatments consist in surgical techniques with systemic broad-spectrum antibiotics and antiseptics. Nevertheless, these therapies may fail because of the hollow spaces in the implant-abutment connection, that are completely contaminated by bacteria in proximity of soft tissues. For our experiment, we have chosen an alginate-catechol-based gel at 1% (for an easy manipulation), that is bioinspired from the system of adhesion of marine mussels’ pads. Physicochemical framework of this gel in wet conditions are tunable with an oral application. We show that AC 1% is stable for one month in PBS at 37°C. Gelation kinetics is rapid (under one minute) and reproducible in rheometer assays. Tacking tests highlight good adhesive results on metal and soft tissues. AC 1% can be combinate with pluronic bisSH 18% to provide a gel with better physicochemical properties. D-CTL is a natural antimicrobial peptide with a Dextrogyre conformation (D-CTL) that is more efficient, without bacterial resistance. CTL mixed to the gel strengths its mechanical properties and has a bactericide activity against P. gingivalis, E. coli et C. albicans. Between 1 and 10 % of the peptide initially introduced in gel are released. HPLC and mass spectrometer indicate that most of the fragments are conserved in the active site of D-CTL and remain efficient. Biocompatibility tests on human fibroblast show results closed to 100%. Gels are assessed in vitro on implant/abutment assemblies put in sealing boxes. Bacteria colonize microgaps between implant and abutment, abutment and crown and its rough surfaces, but are shown to stop at the interface with gel. AC 1%+ D-CTL is a promising candidate for a dental implant application
Marcillaud, Laurence. "Etude des propriétés antimicrobiennes d'un extrait végétal : applications dans les domaines viticole et œnologique." Bordeaux 2, 1998. http://www.theses.fr/1998BOR20632.
Barakat, Rana. "Etude des propriétés biologiques et antimicrobiennes de la pyocyanine, pigment redox-actif produit par Pseudomonas aeruginosa." Phd thesis, Université de La Rochelle, 2012. http://tel.archives-ouvertes.fr/tel-00825873.
Batdorj, Batjargal. "Les produits laitiers mongols, source de bactéries lactiques aux propriétés antimicrobiennes : identification, purification, caractérisation et application." Nantes, 2006. http://www.theses.fr/2006NANT2042.
Two lactic acid bacteria were isolated from mongolian traditional fermented dairy products. They show a strong antimicrobial activity against some food-born pathogens. They were identified on the basis of their morphological, biochemical and molecular biological characteristics. Enterococcus durans A5-11 was isolated from mongolian airag. A three-step purification procedure was developed to separate two bacteriocins with molecular mass of 5206 and 5218 Da, respectively. They are thermostable and not sensitive to acid and alkaline conditions. E. Durans A5-11 shows antifungal properties during its growth on defatted sunflower meal. Lactobacillus delbrueckii subsp. Lactis T31 producing 5 mM/l H2O2 was isolated from mongolian yoghurt. A significant decrease of pathogens was observed in mixed cultures of L. Delbrueckii subsp. Lactis T31 with either E. Coli or L. Innocua
Vandekerckove, Pascal. "Pouvoir antiseptique de celluloses fonctionnalisées par des ammoniums quaternaires : applications au développement d'un nouveau "biotextile" à propriétés antimicrobiennes." Lille 1, 1986. http://www.theses.fr/1986LIL10169.
Naigre, Ruth. "Carbonylation asymétrique de monoterpènes catalysée par des complexes du Palladium en vue d'obtenir des propriétés antimicrobiennes et phytosanitaires." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT043G.
Moulari, Brice. "Propriétés antimicrobiennes in vitro d'extraits de deux plantes africaines : rôle de l'astilbine : potentialisation du pouvoir antibactérien par nanoencapsulation." Besançon, 2005. http://www.theses.fr/2005BESA3004.
The increasingly frequent emergence of fungal and bacterial strains resistant to classical antimicrobial agents, contributes to significantly amplify the gravity of the fungal and bacterial infections. Limitations of synthesized compounds in the treatment of chronic diseases require the development of new molecules. So, the plants represent an interesting and cheaper alternative. Ln the course of the study of medicinal plants from Africa, Cassytha filiformis L. (Lauraceae) and Harungana madagascariensis Lam. Ex Pair. (Hypericaceae), two plants largely used in African traditional medicine, were investigated. We carried out in vitro antimicrobials screening of the extracts of two plants against human pathogenic fungi and cutaneous bacteria. The different MIC [minimal inhibitive concentrations] were determined. The ethyl acetate extract of the leaves of Harungana madagascariensis was found to display interesting antibacterial properties against saprophytic cutaneous bacteria. Based on this screening, a detailed investigation of the ethyl acetate leaves extract was realised. Subsequently, the bacteriostatic and the bactericidal activities of this extract against cutaneous and oral bacteria were determined. Ln addition, this extract was fractionated and the fractions were tested against bacteria by bioautographic method. The bioactive compound was purified, isolated and identified by chromatographic and spectroscopic techniques, as a flavanone : astilbin. Finally, the in vitro potentialization of the antibacterial activity of the ethanolic and ethyl acetate leaf extracts of Harungana madagascariensis was obtained using PLGA-nanoparticles (PLGA = poly d,I-lactide-co-glycolide acid)