Дисертації з теми "Maladies des voies biliaires"
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Bayart, Patricia. "La papillomatose des voies biliaires : intérêts diagnostiques et thérapeutiques de la cholangiographie endoscopique rétrograde : à propos de 12 cas." Montpellier 1, 1992. http://www.theses.fr/1992MON11014.
Barrau, Jean-Paul. "Les fistules biliodigestives d'origine lithiasique : à propos de 10 cas." Montpellier 1, 1989. http://www.theses.fr/1989MON11294.
Bondu, Frédéric. "Deux ans de cholangio-pancréatographie rétrograde endoscopique, diagnostique et thérapeutique : étude rétrospective à propos de 362 patients consécutifs." Montpellier 1, 1996. http://www.theses.fr/1996MON11131.
Perreault, Martin. "La glucuronidation des acides biliaires est une cible pharmacologique prometteuse pour le traitement des pathologies cholestatiques." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30126/30126.pdf.
Introduction: Glucuronidation redirect bile acids (BA) elimination toward the urine. During cholestasis, a condition characterized by a bile flow interruption, this metabolism may represent a pharmacological target, because it can be stimulated by numerous nuclear receptor agonists. The kidney also expresses all proteins involved in this biological pathway, therefore, this organ is suspected as a predominant player in BA homeostasis during cholestasis. Objective 1: Evaluate the effect of glucuronidation on BA toxicity. After determining the differential BAs toxicity in the selected liver model cell (HepG2) using molecular tests (caspase 3 activity measurement, necrosis and apoptosis evaluation by FACS and proliferation assessment using MTS reduction and total protein content evaluated by BCA), we have demonstrated that BA glucuronidation decreased their pro-necrotic and pro-apoptotic properties, and, therefore, their general toxicity. Objective 2: Characterizing the hepatic and renal BA glucuronidation. The expression (protein and mRNA) of various UGT was quantified in human liver and kidney. Then, the kinetic constants for BA glucuronidation in human kidney and liver extracts were determined, which led to the exposure of the allosteric properties of these reactions. Objective 3: Characterizing BA glucuronidation carried out by UGT2As. Microsomes over-expressing either UGT2A1, UGT2A2 or UGT2A3 have been used in enzyme assays to extrapolate the kinetic constants for BA glucuronidation by these enzymes. UGT2A1 and UGT2A2 Glucuronidation decreases BAs toxicity and seems to be performed by a oligomeric enzyme complex. Major differences have been observed between the liver and kidney enzymatic mechanism of BA glucuronidation, but they offers similar performance in normal physiological state. However, the kidney has a better ability to adapt to an overload of BA. In sum, the results presented in this thesis indicate that renal and hepatic BA glucuronidation is a therapeutic target for the treatment of cholestasis, however, it must be better characterized and optimized in order to be used.
Firrincieli, Delphine. "Le récepteur nucléaire de la vitamine D en physiopathologie hépatique : fonctions protectrices dans l'épithélium biliaire." Paris 6, 2012. http://www.theses.fr/2012PA066186.
Eucalipto-Revocat, Joëlle. "Cholangiopathies infectieuses au cours du SIDA : à propos de 5 observations et revue de la littérature." Aix-Marseille 2, 1991. http://www.theses.fr/1991AIX20064.
Gaujard, Véronique. "Lithiase de la voie biliaire principale du nourrisson." Montpellier 1, 1998. http://www.theses.fr/1998MON11043.
Boucaud, Laurent de. "Comparaison de l'IRM avec cholangiopancréatographie-IRM et de l'échoendoscopie dans la pathologie biliopancréatique." Bordeaux 2, 1998. http://www.theses.fr/1998BOR23039.
Bernard, Noëlle. "IIntérêt de l'étude biochimique de la bile associée à la recherche de microcristaux dans le diagnostic de la microlithiase." Angers, 1989. http://www.theses.fr/1989ANGE1056.
Prouvé, Alain. "Complications des endoprothèses biliaires transhépatiques." Bordeaux 2, 1990. http://www.theses.fr/1990BOR23064.
Khan, Memona. "Développement d’agents théranostiques IRM multifonctionnels ciblant le cholangiocarcinome." Electronic Thesis or Diss., Paris 13, 2024. http://www.theses.fr/2024PA131005.
Cholangiocarcinoma represents all cancers that develop in the bile ducts. It is a primary liver tumour that is difficult to diagnose because of its location. The main treatment is surgical resection but it also represents a major risk of death. Chemotherapy and radiotherapy also have a very limited effect on survival. That is why it is necessary to put in place original methods to deal with this problem.Gold nanoparticles are objects with very interesting physicochemical properties for the treatment of cancer. In the field of nanotheranostics, hybrid nanoparticles can be very interesting to serve both as vectors of therapeutic substances and imaging probes for diagnosis. The aim of this work was the design and development of hybrid polymeric nanotherapy agents whose optical and morphological properties will be optimized for their application, such as therapeutic targeting, diagnosis and therapy. To achieve this goal, we have developed complex multifunctional systems using bimeallic nanoparticles with gold and contrast agents. In order to develop anticancer nanovectors, these nanoparticles were functionalized by therapeutic agents (doxorubicin, cisplatin and gemctiabin) by the method developed in our laboratory, IN synthesis
Edeline, Julien. "Radiothérapie interne sélective et traitements systémiques dans les tumeurs hépatiques primitives : associations et comparaison des résultats." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1B031/document.
Selective Internal Radiation Therapy (SIRT) with microspheres loaded with Yttrium-90 is an emerging locoregional treatment of liver malignancies. In this work, we studied potential relationships between systemic treatment and SIRT in an in vitro model and two retrospective clinical studies. The results obtained may generate new hypotheses for clinical development. Regarding cholangiocarcinoma, concomitant use of chemotherapy may be associated with better outcomes, as suggested by both the in vitro and clinical retrospective data. Regarding hepatocellular carcinoma, our results confirmed previous interest in SIRT in case of portal vein thrombosis; our results might also suggest potential improvement by increasing the dose delivered, and the need to select patients with good targeting of the thrombosis as better candidate for SIRT. These results should be confirmed in prospective studies, currently ongoing
Bruneau, Alix. "Régulation de l'expression membranaire du transporteur de phospholipides biliaires ABCB4 : effet de mutations Functional Defect of Variants in the Adenosine Triphosphate–Binding Sites of ABCB4 and Their Rescue by the Cystic Fibrosis Transmembrane Conductance Regulator Potentiator, Ivacaftor (VX-770) Structural analogues of roscovitine rescue the intracellular traffic and the function of ER-retained ABCB4 variants in cell models." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS048.
ABCB4 is exclusively expressed at the canalicular membrane of hepatocytes where its function is to translocate phosphatidylcholine (PC) into bile. Variations in ABCB4 gene sequence are associated with several chronic and progressive liver diseases. The most severe is PFIC3 which develops early in childhood and most often requires liver transplantation. Less severe diseases are the intrahepatic cholestasis of pregnancy and the low phospholipid- associated cholelithiasis syndrome which occur in young adults. Up to now, about 500 disease-causing ABCB4 variants have been reported. A challenge is to find pharmacological treatments for the severe forms of the diseases. We have studied the effect of five disease-causing variations that reside in the highly conserved motifs of ABC transporters, involved in ATP binding. Using three-dimension structural modeling and in vitro studies, we showed that the five mutants were normally processed and targeted to the plasma membrane, whereas their PC secretion activity was dramatically decreased. PC secretion activity of the mutants was rescued by the clinically approved CFTR potentiator ivacaftor (VX-770). These results pave the way for personalized therapy in ABCB4-related diseases.The second part of my project was aimed at investigating the potential role of two ABCB4 partners, the kinase MRCKalpha and its effector the myosin light chain II (MLCII) in the expression and function of ABCB4. We found that downregulation of both partners didn’t affect the canalicular localization of ABCB4 but led to a reduction of its endocytosis. Our results open new insights into the mechanisms underlying the regulation of ABCB4 expression and function
VAN-HONACKER, GRELIN SABINE. "Papillomatose des voies biliaires : a propos d'un cas." Amiens, 1994. http://www.theses.fr/1994AMIEM035.
ASSOSSOU, IRENE. "La perforation spontanee des voies biliaires chez le nourrisson." Lyon 1, 1991. http://www.theses.fr/1991LYO1M151.
Uettwiller, Hervé. "Cancers de voies biliaires et anomalie de jonction des voies biliaires et pancreatiques : a propos de 9 cas de dilatations kystiques congenitales du choledoque." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR1M211.
Sananes, Jean-Christophe. "Exploration IRM des voies biliaires : intérêt de la séquence Haste." Bordeaux 2, 1994. http://www.theses.fr/1994BOR23011.
Gonnon, Didier. "Traitement percutane des lesions traumatiques et operatoires des voies biliaires." Aix-Marseille 2, 1991. http://www.theses.fr/1991AIX20825.
SINANIAN, JEAN-PAUL. "La papillomatose diffuse des voies biliaires : a propos d'une observation." Aix-Marseille 2, 1990. http://www.theses.fr/1990AIX20291.
COTEREL, BRIAND CHANTAL. "L'atresie des voies biliaires extra-hepatiques : a propos de 14 observations." Nantes, 1988. http://www.theses.fr/1988NANT164M.
CHICAN, FREDERIC. "Atresie des voies biliaires extrahepatiques : a propos de 16 observations remoises." Reims, 1991. http://www.theses.fr/1991REIMM060.
Gellis, Olivier. "Indication et utilite de l'echographie du foie et des voies biliaires." Bordeaux 2, 1988. http://www.theses.fr/1988BOR25057.
Pardies, Philippe Pierre-Henri. "Transplantation hépatique pour tumeurs primitives malignes du foie et des voies biliaires." Bordeaux 2, 1997. http://www.theses.fr/1997BOR23067.
Pinna, Michele. "Papillomatose des voies biliaires : a propos d'un cas ; revue de la litterature." Aix-Marseille 2, 1989. http://www.theses.fr/1989AIX20373.
Machu, Isabelle. "Anomalies congenitales des voies biliaires chez l'enfant : a propos de dix observations." Lille 2, 1994. http://www.theses.fr/1994LIL2M150.
Lundy, Sylvie. "Cathétérisme des voies biliaires et sphinctérotomie endoscopique : expérience montoise sur 6 ans." Bordeaux 2, 1993. http://www.theses.fr/1993BOR2M127.
TALON, BERNARD. "Etude de la radiotherapie dans les adenocarcinomes des voies biliaires extra-hepatiques." Lyon 1, 1989. http://www.theses.fr/1989LYO1M379.
FALLET, DEGAND VERONIQUE. "La dilatation kystique congenitale des voies biliaires : a propos de 2 observations." Reims, 1991. http://www.theses.fr/1991REIMM104.
RAYNAUD, FREDERIQUE. "Sphincterotomie endoscopique : notre experience dans le traitement des lithiases des voies biliaires." Toulouse 3, 1990. http://www.theses.fr/1990TOU31157.
Saab, Léa. "Hépatotoxicité idiosyncrasique liée à un stress inflammatoire : modèle de prédiction et mécanismes cellulaires et moléculaires." Thesis, Strasbourg, 2013. http://www.theses.fr/2013STRAJ027/document.
Idiosyncratic adverse drug reactions (IADRs) are considered as an important subset of ADRs, accounting for approximately 13% ofall acute liver failure cases and representing one of the leading causes for post-marketing drug withdrawal (Shaw et al. 2010). The lack of effective in vitro or in vivo models able to predict the hepatotoxic potential of idiosyncratic drugs before being approved formarketing on one hand, and the ambiguity of the mechanisms underlying their hepatic pathogenesis on the other hand render IADRs a perplexing human health problem (Shaw et al. 2010). Accordingly, the work presented in this thesis was based on three main objectives: 1) Development of a high throughput human-based cellular model for the prediction of inflammation associated idiosyncratic drug-induced hepatotoxicity; based on the synergistic exposure of HepG2 cells to potentially hepatotoxic drugs and proinflammatory mediators (LPS and TNF- ). 2) Elucidation of the hepatotoxic mechanisms underlying four known idiosyncratic drugs (trovafloxacin, nimesulide, telithromycin and nefazodone) with emphasis on oxidative stress, steatosis and cholestasis.3) Investigation of the molecular mechanisms underlying drug-inflammation synergistic induction of hepatocellular death Firstly, the results attained in this thesis demonstrated that the developed model is sensitive, specific and applicable to high throughputtoxicity screening of different categories of drugs. Secondly, our results demonstrated that the inflammation associated hepatotoxicpotentials of the four tested idiosyncratic drugs are mediated as follows: trovafloxacin exerts a cholestatic potential that involves thedown-regulation of both MDR1 and MRP2. Nimesulide promotes the intracellular accumulation of superoxide anions in addition topotently inhibiting MRP2. Telithromycin promotes hepatotoxicity predominately via a cholestatic mechanism that involves the downregulation of MDR1. Nefazodone favors the accumulation of superoxide anions in addition to its prominent steatotic potential and inhibitory effect on both MDR1 and MRP2. Although each of the idiosyncratic drugs exhibited a different mechanism of toxicity they all induced amplified hepatocellular death in presence of LPS and TNF- , which proved to be mediated via the intrinsic apoptotic pathway for trovafloxacin, the extrinsic for nefazodone and both apoptotic pathways for nimesulide and telithromycin. The amplified apoptotic potential of the four drugs proved to be based on the up-regulation of Bax and caspase 8 via an ERK½-dependent mechanism. These results indicate that the presented drug-inflammation model constitute an effective pre-clinical tool not only for the detection of inflammation-associated hepatotoxic drugs but also for the elucidation of their underlying mechanisms
Battaglin, Céline. "Atrésie des voies biliaires extra-hépatiques : revue des cas genevois sur 12 ans /." Genève : [s.n.], 2002. http://www.unige.ch/cyberdocuments/theses2002/BattaglinC/these.pdf.
Vivens, Frédérique. "Aspect tomodensitométrique normal et pathologique après chirurgie des voies biliaires et du pancréas." Montpellier 1, 1994. http://www.theses.fr/1994MON11122.
RIVIERE, ALAIN. "Adenocarcinomes des voies biliaires extra-hepatiques : a propos d'une serie de 50 cas." Toulouse 3, 1990. http://www.theses.fr/1990TOU31106.
Girard, Muriel. "Etude des facteurs de prédisposition génétique de destruction des voies biliaires en période néonatale." Paris 5, 2011. http://www.theses.fr/2011PA05T018.
We study the genetic predisposition to the Biliary Atresia (BA) and Neonatal Sclerosing Cholangitis (NSC) to identify new molecular actors of the biliary development. BA represents 70% of the of liver transplantation indication in children. BA incidence is the highest in Polynesians. In this population, we found births seasonality, indicating an environmental effect and demonstrate that incidence of the disease to the ethnic origin of the patients. By a pan-genomic genotyping of the cohort we found suggestive association with 58 SNPs delineating - coding genes implicated into a unique metabolic pathway that fits for the cholangipcytes destruction. NSC is a rare disease sometimes associated with ichtyosis. In the ichtyosis form of the disease, we (i) confirmed the Claudin-1 gene involvment, (ii) suggest a founder effect of the first exon mutation of Claudin-1 gene in the Moroccan population and (iii) suggest a modifying independant locus that could account of the intra-familial variability of the biliary desease. In the desease without ichtyosis, we demonstrated the absence of Claudin-1 gene mutation and we found two predisposition loci in 17q12 and 3q13. 12 by linkage analysis of a consanguineous family. An exome analysis of the patients is still in progress. This work, open also the involvment of the microRNAs in this field
Bourdy-Dubois, Jean-Louis. "Elaboration d'un mélange de drogues végétales à activité hépato-biliaire." Clermont-Ferrand 1, 1989. http://www.theses.fr/1989CLF15011.
Bachir-Cherif, Dalila. "Influence of bile-duct cannulation on the expression of DMPK-relevant enzymes in the rat." Strasbourg, 2011. https://publication-theses.unistra.fr/restreint/theses_doctorat/2011/BACHIR-CHERIF_Dalila_2011.pdf.
Lanchier-Queinnec, Crystèle. "Transplantation hépatique et atrésie des voies biliaires extra-hépatiques décompensée avant l'âge de un an." Bordeaux 2, 1993. http://www.theses.fr/1993BOR23111.
NUVOLI, DELIGNETTE ALEXANDRA. "Traitement de la lithiase des voies biliaires : place de la lithotritie par voie percutanee transhepatique." Lyon 1, 1990. http://www.theses.fr/1990LYO1M413.
Maysonnave, Christophe. "La fibrose hépatique congénitale : à propos d'un cas avec dilatation kystique des voies biliaires intra-hépatiques." Bordeaux 2, 1990. http://www.theses.fr/1990BOR25013.
Trottier, Jocelyn. "Profilage des acides biliaires chez le patient cholestatique : Effet de nouvelles approches thérapeutiques." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28405/28405.pdf.
Rosenblatt, Rémy. "Cholangiocarcinome sur dysplasie biliaire kystique : à propos d'une observation et revue de la littérature." Montpellier 1, 1988. http://www.theses.fr/1988MON11120.
Jouan, Marie-Hélène. "Intérêt d'un clampage modulé dans les hépatectomies droites : étude de 175 hépatectomies droites sur 8 ans." Bordeaux 2, 1998. http://www.theses.fr/1998BOR23047.
Garlatti, Virginie. "Systèmes effecteurs de l'immunité innée : reconnaissance et voies de signalisation." Grenoble 1, 2008. http://www.theses.fr/2008GRE10073.
The innate immune system triggers inflammatory defences against pathogens or dangerous cells but is also involved in the tolerogenic removal of apoptotic cells. Target recognition is mediated by a wide range of soluble or membrane proteins. Among them are the essential complement recognition proteins: mannose-binding lactin, C1q and ficolins. Whereas the structural recognition properties of mannose-binding lectin BL have been extensively studied, the corresponding properties of ficolins and C1q with their ligands had to be deciphered at the atomic level. This was thus the aim of the first part of the project presented here. This was experimentally studied through the X-ray structural analysis of the corresponding ficolins and C1q recognition domains, alone or in complex with several cognate ligands. We have shown that H- and M- ficolins possess only one binding site, conserved among fibrinogen-like domains. This conserved site does not seem to be active in L-ficolin, but new binding sites were discovered instead, defining a larger surface of recognition more suitable to the binding of elongated polymers. Interestingly, we also found a new binding site for phosphoserine in C1q. We also provided evidence for two unique properties of M-ficolin: the binding of Neu5Ac, a classical self-marker, and a pH-dependent conformational switch of the binding site. As recognition properties of a few recognition proteins do not explain the different behaviour of immune cells with altered-self debris, we initiated a new project to understand signalling pathways in phagocytes during apoptotic cells removal. Many data suggest that a GEF complex: ELMO/DOCK is common to many pathways activated by apoptotic cells recognition and is also a point of regulation. My work in this second project was to initiate the setup of cellular tools to study the behaviour of this complex in different model cell lines. I developed quantitative phagocytic tests and also tools for detection and surexpression of ELMO1 in different cells lines. We also observed the re-localisation of cellular ELMO1 in the phagocytic cup
Guillo, Sylvie. "La lithiase biliaire du nourrisson." Montpellier 1, 1995. http://www.theses.fr/1995MON11028.
Jost, Francis. "L'ascaridiose des voies biliaires et ses complications : a propos d'un cas chez une patiente porteuse d'une anastomose choledochoduodenale." Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR1M228.
Bonnet-Amar, Sylvie. "Atrésie des voies biliaires extra-hépatiques : l'expérience du service de chirurgie infantile de Montpellier de 1971 à 1988." Montpellier 1, 1990. http://www.theses.fr/1990MON11049.
MEIMOUN, MARC. "Interet de la scintigraphie des voies biliaires (mebrofenine marquee au technetium 99m) dans les cholangiopathies associees au sida." Aix-Marseille 2, 1992. http://www.theses.fr/1992AIX20803.
Brillet, Béatrice. "Les tumeurs bénignes de la voie biliaire principale : à propos d'un cas." Bordeaux 2, 1990. http://www.theses.fr/1990BOR25244.
Lescure, Alain. "Hémobilie post-traumatique : à propos d'un cas." Bordeaux 2, 1995. http://www.theses.fr/1995BOR2M139.
Waldschmidt, Ingrid. "Effet de l’effort, l’entrainement et l’inflammation sur l’immunité innée des voies respiratoires profondes du Trotteur Français." Caen, 2013. http://www.theses.fr/2013CAEN2095.
Lower airway diseases are a common problem in sport and racing horses. Because the innate immunity plays an essential role in lung defense mechanisms against pathogens, we aimed to assess the effect of acute exercise, training and inflammation on pulmonary innate immune responses. In the first step of these PhD research, we evaluate an experimental model to assess equine pulmonary innate immune response which could be used in several conditions. Alveolar macrophages were isolated from broncho-alveolar lavages using an adhesion method and stimulated by TLR 2/6, 3 and 4 agonists. TLR are receptors able to recognize pathogen associated molecular patterns and to induce an immune response. Best conditions of alveolar macrophages stimulations were selected using PCR method. Evaluation of alveolar macrophages response to TLR ligands was performed by measurement of cytokine production in culture supernatants by ELISA. TLR relative expression was quantified by PCR. This experimental model was used in the second step of this work to evaluate the effect of strenuous exercise and training on respiratory innate immunity of horses. A longitudinal study was organized using eight young standardbred horses. Horses were trained and respiratory samplings were performed at different step of the protocol. Results of this study show a moderate effect of strenuous exercise and a negative and prolonged effect of training on alveolar macrophage response against viruses and bacteria. Effect of respiratory inflammation was assessed on owner horses presented at Cirale for respiratory affections. Pulmonary innate immunity was evaluated using the experimental model and compared between healthy horses and horses suffering of IAD and bacterial infection. Results show that alveolar macrophage response of IAD horses was not different from those of healthy horses. Alveolar macrophage response to TLR 4 stimulation was higher in bacterial infection group than in healthy group but the low number of horses included in each group need to take these results with caution. To conclude, this PhD research provides an experimental model to evaluate the ability of alveolar macrophages to recognize pathogens and initiate an immune response. The effect of strenuous exercise and training was assessed using this experimental model and show the negative impact of training on viral and bacterial immunity, which partly explain the high sensitivity of horses to respiratory affections during training periods. Molecular mechanisms involved in IAD stay unknown; complementary studies including higher number of horses should be required to complete these data