Dissertations / Theses on the topic 'Solutions parentérales'
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Koycha, Maléka. "Émulsions nutritives intraveineuses : aspects physico-chimiques et étude de stabilité." Université Joseph Fourier (Grenoble), 1991. http://www.theses.fr/1991GRE18001.
Full textDurance, Loïc. "Développement d'une méthode de stérilisation par la chaleur de solutions injectables conditionnées en polyéthylène basse densité." Amiens, 2003. http://www.theses.fr/2003AMIED003.
Full textThe solutions for injection are usually packaged in glass flasks and sterilised by moist steam. Is the current tendency to substitute glass by the plastic because it reduce the obstruction of conditioning while increasing its shock-proofness and allows a board elimination of the wastes by incineration. Only some plastics meet both public health regulations and ecological requirements. Among them, low density polyethylene (LDPE) offers various advantages. It possesses virtually no additive, which limits the interaction hazards between plastic and chemical substances used in injection preparations. Its destruction does not bring chlorine-containing waste or other toxic matter into the atmosphere. Moreover, it is fully adapted to the various manufacturing technologies for large-scale production as the blow-fill-an-seal. However, the temperature value admitted for sterilisation is 121°C, whereas LDPE exhibits a melting point at about 117°C. Therfore, we have developped an alternative cycle of sterilisation based on F0 concept at a temperature lower than 121°C and such as it respected the LDPE containers integrity. The efficiency on the micro-organisms destruction have been calculated aid of stocks spores of Bacillus Stearothermophilus introduced into the recipients which contained water for injection as base solution. The sterilised products have been followed throughout this period. The information obtained by this work have the aim of documenting a manufacturing authorization file about products for injection for its recording with the benefit of a pharmaceutical industry of Amiens
Michon, Chantal. "Assurance de la qualité des solutions pour nutrition parentérale." Paris 5, 1990. http://www.theses.fr/1990PA05P080.
Full textChanty, François. "Apports osmotiques des solutions de nutrition parentérale pédiatrique." Paris 5, 1990. http://www.theses.fr/1990PA05P102.
Full textSahnoune, Millot Meriem. "Interactions entre médicaments injectables et polymères des dispositifs médicaux de perfusion : Expérience versus Simulation moléculaire." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0016.
Full textPolymeric materials are widely used for the infusion of medications, but they are known to interact with certain drugs. Container-content interactions between a medical infusion device and a drug are likely to alter the therapeutic care of the patient through the release of additives or loss of drug through sorption. These interactions are variable, and depend on the composition of both the device and the drug (active ingredient, excipients).The study focuses on the interactions between infusion tubes and drugs diluted in water-based solution. Two active pharmaceutical ingredients (API) with different lipophilicity were studied: paracetamol and diazepam. Different polymers are studied for infusion tubings: polyethylene (PE) and polyvinyl chloride (PVC). PVC tubings are plasticized with plasticizers to obtain the needed flexibility and ease of use. In this work three plasticizers were selected: DINCH, DEHT (DEHTP) and TOTM (TEHTM).Drug solutions were put into contact with the various infusion tubes. Liquid chromatography was used to quantify the API and plasticizers in the solutions after contact with the infusion tubings. This experimental study made it possible to follow changes in the concentration of the API and plasticizers in the solution, by varying the contact time.Molecular simulation allowed better understanding of the sorption phenomena and of the plasticizers’ migration at molecular and interfacial level, whilst considering the interactions and the miscroscopic specificities. Energy characterizations were used to gain an improved understanding of the interactions leading to drug adsorption and plasticizer release. The Potential of Mean Force (PMF) method was used to calculate the free energy associated with adsorption of the API.Initially, the study focused on sorption phenomena, more specifically on interactions between API and PE and pure PVC surfaces. This first step enabled us to study the interactions with more complex surfaces, such as plasticized PVCs. Finally, the last part studied the release of the plasticizers into the solution in contact with the tubings, as well as the influence of the composition of the solutions on the adsorption of the APIs.In conclusion, the experimental results validated the simulation methodologies, whilst the simulation results provided a molecular vision of the API adsorption and plasticizer migration phenomena. The combination of these two approaches offers considerable added value for the design of new materials and/or the rationalization of experiments
Anglade, Pascale. "Les solutions pour nutrition parentérale : fabrication, contrôle, stabilité." Paris 5, 1989. http://www.theses.fr/1989PA05P006.
Full textOlivier, Anne-Louise. "Nutrition parentérale : intérêt et étude comparative des solutions d'acides aminés." Paris 5, 1990. http://www.theses.fr/1990PA05P166.
Full textMartineau, Christine. "Stabilité des vitamines dans les mélanges de nutrition parentérale en pédiatrie." Paris 5, 1990. http://www.theses.fr/1990PA05P143.
Full textChoux, Chantal. "Conception et réception d'une unité de fabrication de solutions pour nutrition parentérale à l'hôpital." Paris 5, 1991. http://www.theses.fr/1991PA05P195.
Full textTopin, Agnès. "Contribution à l'étude de quelques interactions acides aminés-glucose dans des solutions de nutrition parentérale." Paris 5, 1993. http://www.theses.fr/1993PA05P029.
Full textRey, Jean-Baptiste. "Stabilité galénique de formules-types de mélanges ternaires destinés à la nutrition parentérale en pédiatrie/ Jean-Baptiste Rey." Paris 5, 1999. http://www.theses.fr/1999PA05P100.
Full textMatéos, Anne. "Caractérisation d'une nouvelle espèce : Rouxiella chamberiensis : phylogénie, physiologie, étude des réservoirs et mise au point d'une technique de diagnostic rapide." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC207.
Full textThe contamination of several parenteral nutrition bags (PNB) with unknown bacterium started an investigation, which is still ongoing. The essential objectives were: to characterize this bacterium taxonomically to allow to recognize it in others contexts. Sequencing the rrs gene (encoding 16S rRNA) allowed to position the unknown bacterium in the family Enteriobacteriaceae, close to genera Ewingella, Rahnella, Serratia, Yersinia and Hafnia. Whole genome sequencing was done. Five genes were used for a MLSA (multi-locus sequence analysis) study. The MLSA phylogenetic tree showed the bacterium (six isolates were only one strain) to represent a new genus of the family Enteriobacteriaceae, named Rouxiella, the species being Rouxiella chamberiensis. One isolate have been designated as the type strain and deposited in two collections in two different countries (CIP, France and DSMZ, Germany). The physical and biochemical properties of R. chamberiensis were used in a formal species description. R. chamberiensis failed to grow at 37 °C, this does not plead for a pathogenic action for human, negative results in tests for reduction of nitrate (which is rare in the Enterobacteriaceae, excepted Erwinia), and fermented a few carbohydrates. The name Rouxiella chamberiensis has been approved by publication in International Journal of Systematic and Evolutionary Microbiology. When this new genus and species has been published, other researchers have isolated environmental strains close to Rouxiella chamberiensis. Collaboration with a German team allowed us to describe two new species of Rouxiella, "R. badensis" and "R. sylvae"
Du, Merle Thibaud. "Méthodologie de validation du nettoyage : application à la fabrication de produits pour usage parentéral." Paris 5, 1995. http://www.theses.fr/1995PA05P216.
Full textRoche, Marine. "Développement de méthodes analytiques pour l'étude de la stabilité et de la compatibilité de médicaments sous forme de solution ou de systèmes dispersés. Application en anesthésie-réanimation." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILS021.
Full textThe research subject of this PhD focused on the development of analytical methods to assess the stability or incompatibilities of injectable anaesthetic drugs in solution or in dispersed systems.The first part of this work involved a study of the stability of cisatracurium besylate ampoules produced by the pharmacy of Lille University Hospital to ensure continuity of care for intensive care patients in the context of supply disruptions caused by the COVID-19 pandemic. The stability study was conducted on a batch of 4,000 ampoules stored at 2-8°C for 18 months. This study required the validation of a stability-indicating HPLC-UV method for the determination of cisatracurium and laudanosine, one of its degradation products described as a marker of its instability. In addition, the use of an HPLC-mass spectrometry method enabled the identification of degradation products and the study of degradation pathways. Our results showed that cisatracurium solutions at 10mg/mL were stable for 15 months under our preparation and storage conditions. The main degradation pathway observed under our study conditions (ester hydrolysis) differed from that previously described (Hofmann pathway). This highlights the imponderability of conducting stability studies under conditions representative of the actual use of drugs. The second part of this thesis led us to study the incompatibility between different drugs used in anaesthesia and intensive care units. The models studied were the simultaneous administration of propofol and alpha-2 adrenergic receptor agonists (α2A; clonidine or dexmedetomidine) used in multimodal analgesia. The data available in the literature refers to concentrations and ratios that are not representative of those encountered in hospital wards, potentially exposing patients to drug hazards. We assessed the compatibility of propofol-α2A combinations under conditions mimicking those encountered in critical care units. Eight conditions per combination were evaluated over 96 hours, in triplicate, varying the simulated mass flow rates for each drug and for patient weights of 45 and 150 kg. To assess the chemical compatibility of these combinations, we developed and validated 3 stability-indicating HPLC-UV assay methods to study the stability of propofol, clonidine and dexmedetomidine in combination for 96 hours. The physical compatibility of the emulsion in combination was assessed using a granulometer coupled to a zeta potential measurement (with positive and negative controls). Our results demonstrated the physico-chemical stability of propofol-α2A mixtures representative of those used in current practice.In conclusion, the results of this work have provided scientific validation of hospital pharmacy and care service practices. They also highlighted the fundamental role of pharmacists in guaranteeing the quality of patient drug management, by using their skills in analytical chemistry to assess compatibility and stability data
Alliod, Océane. "Development and valorization of a membrane emulsification process for the production of nanoemulsions." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1264/document.
Full textNanoemulsions are interesting carriers for applications such as cosmetics, pharmaceutical and food. They are produced usually by low or high energy techniques. In this work, a process involving moderate pressure, premix membrane emulsification (PME) was proposed as an alternative. Oil-in-water (O/W) and water-in-oil (W/O) nanoemulsions were produced with a pilot scale set-up composed of a controlled high pressure syringe pump and Shirasu Porous Glass (SPG) membrane. First, the influence of process and composition parameters on droplet sizes and pressures was extensively studied with model compositions to optimize the production. Thus, nanoemulsions down to 260 nm for O/W and around 600 nm for W/O were successfully produced. Then, the set-up was used to produce nanoemulsions of specific compositions: O/W and W/O nanoemulsions stabilized with polypeptidic surfactants and O/W nanoemulsions suitable for injection. Finally, the set-up developed was compared to two traditional high energy processes, microfludizer and ultrasound in terms of droplet size and active preservation. No real difference between the three processes was seen on active preservation with the model active chosen. However, regarding droplet size, PME produced monodispersed droplets of 335 nm compared to the other processes which produced nanoemulsions of around 150 nm but with the presence of micron size droplets detected by laser diffraction and optical microscopy. Therefore, PME nanoemulsions are also suitable for parenterals applications with no additional filtration step required
Côté, François. "Contamination des solutions d’hyper-alimentation intraveineuses (HAIV) néonatales, effet de l’ascorbylperoxyde au foie." Thèse, 2008. http://hdl.handle.net/1866/2827.
Full textIntroduction: Intravenous hyperalimentation (IVHA) often contributes to the survival of preterm newborns, but it is also an important source of oxidizing molecules. The lack of adequate protection from ambient light generates, in vitro, through the photo-excitation of riboflavin, H2O2, organic peroxides and a peroxidated derivative of vitamin C: ascorbylperoxide (AscOOH). Certain data from our laboratory linked the infusion of IVHA to lipid disorders in our animal model. The hypothesis is that AscOOH is an oxidant that is responsible for some of the biological effects observed. My objectives are: 1) to develop a method for quantitation of AscOOH, 2) to demonstrate, using the guinea pig model used by our laboratory, relations between the tissue concentration of this molecule and metabolic and redox parameters in the liver and plasma, and 3) to confirm the physiological effect of AscOOH in a cell culture model. Method: Different promising internal standards were tested for AscOOH quantitation by mass spectrometry after HPLC separation (LC-MS). Mobile phases and chromatography conditions have been optimized. For objective #2, 3 days old guinea pig pups (n = 11) received an intravenous dose of AscOOH (between 0 and 3.3mM). Animals were sacrificed on the 4th day of treatment for tissue gathering. Tissues AscOOH concentrations were determined by LC-MS. The triglyceride and cholesterol levels were measured by spectrophotometry using a commercial kit. The oxidized and reduced glutathione were measured by capillary electrophoresis. The linear relations obtained are expressed by the square of the correlation coefficient (r2), and processed by ANOVA. Results: The validation of the LC-MS method for AscOOH quantification has been achieved. In animals, the concentration of urinary AscOOH by creatinine correlates positively with the dose received, negatively with blood lipids, and negatively with blood and erythrocyte redox, indicating a less oxidized environment. Conclusion: The urinary AscOOH concentration may be a good indicator of the oxidation state of clinical IVHA. Our data in animals suggest an interaction between AscOOH and liver metabolism producing a drop in plasma concentration of cholesterol and triglycerides. The cell model was not able to clarify the molecular mechanism of AscOOH action on metabolism.