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Academic literature on the topic 'Acide étacrynique – usage thérapeutique'
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Dissertations / Theses on the topic "Acide étacrynique – usage thérapeutique"
El, Abbouchi Abdelmoula. "Synthèse et évaluation in vitro de nouveaux dérivés de l’acide éthacrynique comme agents anticancéreux." Thesis, Orléans, 2020. http://www.theses.fr/2020ORLE3148.
Full textNowadays, cancer is the second leading cause of death in the developed countries after cardiovascular disease. Basing on these statistics, we are interested in the design and synthesis of new molecules as new potent anticancer agents. From a chemical point of view, we carried out the modifications of the carboxylic acid function and the aromatic part of the ethacrynic acid (EA). The different structural modifications were made to design a diverse library of original EA analogs. In the first part of this manuscript, we prepared a new series of EA derivatives, carrying sulfonamide, urea or thiourea moieties via a peptide coupling reaction between the EA and aminosulfonamides, ureoamines or thioureamines, previously synthesized. The second part was reserved for the preparation of other families of EA bearing triazole moiety, using Huisgen cycloaddition reactions. Simultaneously, fluorescent EA derivatives have also been synthesized. In order to increase the reactivity of the Michael acceptor, the last part of this thesis was devoted to the modification of the aromatic ring of EA using new synthesis method. From a pharmacological aspect, all the obtained results showed that most of the synthesized EA derivatives exhibited significant antiproliferative activities with IC₅₀ values ranging from micromolar (µM) to nanomolar (nM) on a panel of cancer cell lines, with excellent selectivities (> 80%)
Dichou, Sofia. "Validation des méthodes de dosage de composants du sirop de chlorhydrate de méthadone." Paris 5, 1995. http://www.theses.fr/1995PA05P091.
Full textOkdah, Liliane. "Gestion patrimoniale des anciens agents antimicrobiens en les criblant contre des bactéries multi-résistantes modernes." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0593.
Full textThe emergence of beta-lactam and carbapenem resistant bacteria, resulted in the reintroduction of colistin as an agent of last resort to treat infections caused by these bacteria. However, chromosomal resistances and more recently plasmidic to colistin appeared. This problem of multidrug-resistant bacteria subsequently triggered the publication of alarming articles on the dangers of these germs. To answer the media dramatization related to this problem, my thesis project aims to propose therapeutic strategies to treat infections due to multiresistant bacteria.Initially, we tested the activity of a large panel including old antibiotics against carbapenem resistant bacteria and others resistant to colistin. Several families of antibiotics have been effective against these two types of resistant bacteria.In a second step, we evaluated the activity of combined antibiotics in order to detect a synergistic action. Two synergistic combinations were retained: colistin + sulfadiazine and colistin + fusidic acid. These combinations of antibiotics have shown a bactericidal effect on a collection of Gram-negative colistin-resistant bacteria, independent of the resistance mechanism
Ancla, Christophe. "Microgels sensibles au glucose pour la delivrance d’insuline." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14182/document.
Full textBioresponsive hydrogels can change many of their physical properties in response to the recognition of a target in the solution. In particular, changes in hydrogel swelling lead in turn to controllable changes in shape, volume, pore size, mechanical and optical properties. We focus our research on the development of glucose-responsive microgels which hold promising interest in the field of both sensing and drug delivery. These cross-linked polymer particles, made of highly swollen networks, can swell proportionally to the concentration of glucose in the surrounding medium. Since they are porous, they can entrap a drug and release it a rate dependent on their swelling degree, which is of particular interest in the case of insulin as a drug. Such systems could be used as self-regulated insulin delivery systems for diabetes treatment. With that aim, we have designed microgels able to sense glucose concentrations in the patho-physiological range, under physiological conditions. Insulin was successfully loaded into the nanogels and was shown to be released at a rate dependent on glucose concentration. Furthermore, microgels with a controlled internal structure were synthesized, such as core-shell microgels and capsules. These latter developments led to improvements in terms of insulin encapsulation efficiency and glucose-triggered delivery. Besides, other nanogel formulations were investigated, in order to improve both their biocompatibility as well as the selectivity of their response to glucose compared to other saccharides
Fromonot, Julien. "Implication de l'adénosine en physiopathologie cardiovasculaire." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM5041.
Full textAdenosine (ADO) is an ubiquitous nucleoside that comes from ATP and from the methionine cycle. Via A1 receptors (A1R), it promotes atrial fibrillation (AF). Via A2A receptors (A2AR), it leads to coronary vasodilatation. Thus, adenosine is a metabolic intermediate and a neurotransmitter of the cardiovascular system.The first study showed that adenosine plasma level (APL) is correlated with homocystein (Hcy) and uric acid in coronary artery disease (CAD) patients. Furthermore, APL and Hcy are correlated with the SYNTAX score which evaluate CAD severity. Finally, in cellulo, ADO induced a dose and time dependant increase of HCY production by human hepatocytes. We concluded that high APL may participate into the high HCY and uric acid levels. These data bring new highlight on the physiopathology of CAD.In the second work, APL increased significantly only in patients with positive exercise stress testing (EST). Furthermore, A2AR expression was lower in positive EST patients compared with those with negative EST. Then, we concluded that the low expression of A2AR in CAD patients with positive EST, participates in the lack of adaptive response (coronary vasodilatation) to the EST. This result suggests that low A2AR expression may be a biological marker of CAD.In the third study, patients with AF and no structural heart disease have a normal APL but an increase in A2AR expression. Because adenosine promotes AF, we concluded that high A2AR expression may participate into the triggering of AF by increasing the sensitivity to adenosine.In conclusion, drugs that modulate the purinergic system should be useful tools for the treatment of CAD or AF
Books on the topic "Acide étacrynique – usage thérapeutique"
Gervais, Gérard. Les oméga-3 pour guérir: Prévention, soulagement, rémission des malaises et maladies de type chronique. Montréal: Guérin, 2004.
Find full textSymposium on New Frontiers in Medical Sciences (1999 Padua, Italy). New frontiers in medical sciences: Redefining hyaluronan : proceedings of the Symposium, held in Padua, Italy, 17-19 June 1999. Edited by Abatangelo G and Weigel Paul H. New York, 2000.
Find full text(Editor), Giovanni Abatangelo, and Paul H. Weigel (Editor), eds. New Frontiers in Medical Sciences: Redefining Hyaluronan. Elsevier Science Pub Co, 2000.
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