Literatura académica sobre el tema "Modèles de progression de maladies"
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Artículos de revistas sobre el tema "Modèles de progression de maladies"
de Pontual, Laure, Geneviève Gourdon y Stéphanie Tomé. "Identification de nouveaux facteurs entraînant des contractions CTG.CAG dans la dystrophie myotonique de type 1". médecine/sciences 37 (noviembre de 2021): 6–10. http://dx.doi.org/10.1051/medsci/2021182.
Texto completoBoucquemont, J., M. Metzger, C. Combe, B. Stengel y K. Leffondré. "Quels modèles statistiques utiliser pour étudier les facteurs de risque de progression de la maladie rénale chronique ?" Néphrologie & Thérapeutique 10, n.º 5 (septiembre de 2014): 267. http://dx.doi.org/10.1016/j.nephro.2014.07.318.
Texto completoKorganow, A. S., J. C. Weber y T. Martin. "Modèles animaux et maladies auto-immunes". La Revue de Médecine Interne 20, n.º 3 (marzo de 1999): 283–86. http://dx.doi.org/10.1016/s0248-8663(99)83060-4.
Texto completoGuénet, Jean-Louis y Xavier Montagutelli. "Les modèles animaux des maladies humaines". Annales de l'Institut Pasteur / Actualités 9, n.º 4 (octubre de 1998): 291–98. http://dx.doi.org/10.1016/s0924-4204(99)80008-0.
Texto completoLangui, Dominique, François Lachapelle y Charles Duyckaerts. "Modèles animaux des maladies neuro-dégénératives". médecine/sciences 23, n.º 2 (febrero de 2007): 180–86. http://dx.doi.org/10.1051/medsci/2007232180.
Texto completoPineault, R., S. Provost, M. Hamel, A. Couture y JF Levesque. "L’influence des modèles d’organisation de soins de santé primaires sur l’expérience de soins de patients atteints de différentes maladies chroniques". Maladies chroniques et blessures au Canada 31, n.º 3 (junio de 2011): 120–32. http://dx.doi.org/10.24095/hpcdp.31.3.05f.
Texto completoTHEBAULT, A., E. J. PEELER, A. G. MURRAY, E. BRUN, A. GIOVANINNI y M. A. THRUSH. "Application de la modélisation en santé des espèces aquacoles". INRAE Productions Animales 20, n.º 3 (7 de septiembre de 2007): 223–26. http://dx.doi.org/10.20870/productions-animales.2007.20.3.3460.
Texto completoKahn, A. "Création de modèles animaux de maladies humaines héréditaires". médecine/sciences 3, n.º 6 (1987): 368. http://dx.doi.org/10.4267/10608/3699.
Texto completoSzwec, Gérard. "Les maladies de peau dans quelques modèles psychosomatiques". Revue française de psychosomatique 29, n.º 1 (2006): 31. http://dx.doi.org/10.3917/rfps.029.0031.
Texto completoHamm, Naomi C., Louise Pelletier, Joellyn Ellison, Lana Tennenhouse, Kim Reimer, J. Michael Paterson, Rolf Puchtinger, Sharon Bartholomew, Karen A. M. Phillips y Lisa M. Lix. "Tendances des taux d’incidence des maladies chroniques d’après le Système canadien de surveillance des maladies chroniques". Promotion de la santé et prévention des maladies chroniques au Canada 39, n.º 6/7 (junio de 2019): 238–47. http://dx.doi.org/10.24095/hpcdp.39.6/7.02f.
Texto completoTesis sobre el tema "Modèles de progression de maladies"
Sauty, Benoît. "Multimodal modelling of Alzheimer's Disease progression". Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS348.
Texto completoAlzheimer's disease (AD) is a multi-facet pathology, that can be monitored through a variety of data types. This thesis aims to leverage multimodal longitudinal data, especially imaging scans and cognitive tests, to provide a statistical description of the progression of AD and to enable individual forecasting of future decline. Mixed-effect disease progression models (DPMs) are commonly used for these tasks. In this context, our first contribution questions the frequent assumption that biomarkers follow linear or logistic functions over time, and we propose a geometric framework that assumes the data lie on a manifold and follow geodesics over time. We learn the Riemannian metric of the observation space and are able to model a wider variety of biomarkers, without priors on the shape of the trajectory over time. Using variational auto-encoders, we then extend this framework to neuroimaging data (MRI or PET scans), in order to provide high-dimensional progression models that describe the patterns of structural and functional alterations of the brain over the course of AD. We then apply this family of DPMs to clinical studies data in order to investigate the heterogeneity of AD progression, due to APOE-e4 genotype and sex on patterns of brain alterations. Lastly, we use said DPMs with a set of imaging and fluid biomarkers to identify the specific combinations of input features that best forecast cognitive declines in patients at different stages of the disease. The thesis demonstrates that DPMs can effectively model the progression of AD using a great variety of multimodal longitudinal data and provide valuable insights into the disease's clinical manifestations and progression. These findings can inform clinical trial design and facilitate more accurate prognosis and individualized treatment strategies for patients with AD
Boucquemont, Julie. "Modèles statistiques pour l'étude de la progression de la maladie rénale chronique". Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0411/document.
Texto completoThe objective of this thesis was to illustrate the benefit of using advanced statistical methods to study associations between risk factors and chrouic kidney disease (CKD) progression. In a first time, we conducted a literature review of statistical methods used to investigate risk factors of CKD progression, identified important methodological issues, and discussed solutions. In our sec ond work, we focused on survival analyses and issues with interval-censoring, which occurs when the event of interest is the progression to a specifie CKD stage, and competing risk with death. A comparison between standard survival models and the illness-death mode! for interval-censored data allowed us to illustrate the impact of modeling on the estimates of both the effects of risk factors and the probabilities of events, using data from the NephroTest cohort. Other works fo cused on analysis of longitudinal data on renal function. We illustrated the interest of linear mixed mode! in this context and presented its extension to account for sub-populations with different trajectories of renal function. We identified five classes, including one with a strong decline and one with an improvement of renal function over time. Severa! perspectives on predictions bind the two types of analyses presented in this thesis
Bône, Alexandre. "Learning adapted coordinate systems for the statistical analysis of anatomical shapes. Applications to Alzheimer's disease progression modeling". Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS273.
Texto completoThis thesis aims to build coordinate systems for shapes i.e. finite-dimensional metric spaces where shapes are represented by vectors. The goal of building such coordinate systems is to allow and facilitate the statistical analysis of shape data sets. The end-game motivation of our work is to predict and sub-type Alzheimer’s disease, based in part on knowledge extracted from banks of brain medical images. Even if these data banks are longitudinal, their variability remains mostly due to the large and normal inter-individual variability of the brain. The variability due to the progression of pathological alterations is of much smaller amplitude. The central objective of this thesis is to develop a coordinate system adapted for the statistical analysis of longitudinal shape data sets, able to disentangle these two sources of variability. As shown in the literature, the parallel transport operator can be leveraged to achieve this desired disentanglement, for instance by defining the notion of exp-parallel curves on a manifold. Using this tool on shape spaces comes however with theoretical and computational challenges, tackled in the first part of this thesis. Finally, if shape spaces are commonly equipped with a manifold-like structure in the field of computational anatomy, the underlying classes of diffeomorphisms are however most often largely built and parameterized without taking into account the data at hand. The last major objective of this thesis is to build deformation-based coordinate systems where the parameterization of deformations is adapted to the data set of interest
Couronné, Raphaël. "Modélisation de la progression de la maladie de Parkinson". Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS363.
Texto completoIn this work, we developed statistical methods to model disease progression from patient’s repeated measurements, with a focus on Parkinson’s Disease (PD). A key challenge lies in the inherent heterogeneity of PD across patients, to the extent that PD is now suspected to encompass multiple subtypes or motor phenotypes. To gain insights on disease progression, research studies propose to gather a broad range of marker measurements, at multiple timepoints for each patients. These data allow to investigate the disease’s patterns of progression via statistical modeling. In a first part, we modeled the progression of scalar markers of PD. We extended on a disease progression model, namely the longitudinal spatiotemporal model. We then proposed to address data missingness, and to model the joint progression of markers of different nature, such as clinical scores, and scalar measurements extracted on imaging modalities. With this method, we modeled early motor progression in PD, and, in a second work, the heterogeneity of idiopathic PD progression, with a focus on sleep symptoms. In a second, independent, part of the manuscript, we tackled the longitudinal modeling of medical images. For these higher dimensionality data, Deep Learning is often used, but mostly in cross sectional setups, ignoring the possible inner dynamics. We proposed to leverage Deep Learning as a dimensionality reduction tool to build a spatiotemporal coordinate system of disease progression. We first took advantage of this flexibility to handle multimodal data. Then we leveraged the self-supervision induced by assuming monotonicity over time, to offer higher flexibility in modeling temporal variability
Tabbekh, Mouna. "Rôle de CD5 dans la potentialisation de la réponse T cytotoxique et dans le contrôle de la progression tumorale dans un modèle in vivo". Thesis, Paris 11, 2011. http://www.theses.fr/2011PA11T026.
Texto completoA major challenge in tumor immunology is based on effective and prolonged induction of the effectorphase of antitumor immune response. A better understanding of the mechanisms involved in potentiatingthe antitumor activity of immune effectors, particularly the CTL infiltrating the tumor represents aconsiderable challenge in developing new approaches to immunotherapy. In this context we areparticularly interested in studying the role of CD5 in the control of tumor progression, particularly inpotentiating the cytotoxic activity of CTLs infiltrating B16 melanoma. Our results showed a significantdelay in tumor growth in CD5-/- mice as compared with wild type mice. The control of tumor growth inCD5-/- mice does not seem to correlate with a higher recruitment of T cells, but with increased cytotoxicityof infiltrating T cells against B16 cells. We have also shown that this response is transient and that thetumor escape from immune system takes place at a later stage of tumor progression. This tumor escapeappears to be associated with increased death by AICD of TIL CD8+ from CD5-/- mice as compared withTIL CD8+ from wild type mice wich correlated with the induction of FasL on the surface of TIL. In vivomodulation of Fas/FasL with an adenovirus AdFas-Fc protects tumor infiltrating T CD8+/CD5- fromapoptosis and thereby prevents the tumor escape. In addition, analysis of specific T lymphocyte repertoirein CD5-/- mice suggests that the control of tumor progression could be linked to a greater in situproliferation of specific CD5- T lymphocytes. Our results also show that immunization of CD5-/- miceusing different melanoma associated antigens contributes to the potentiation of antitumor immuneresponse. All these results highlight a particular interest in targeting of CD5 to improve currentapproaches to tumor immunotherapy
Peyre, Matthieu. "Modélisation de la tumorigenèse méningée chez la souris : progression tumorale liée à Nf2 et Cdkn2ab et voies alternatives d'oncogenèse". Paris 7, 2013. http://www.theses.fr/2013PA077109.
Texto completoMeningioma is the most common primary nervous System tumor. Although most tumors are benign , they can recur even after total resection, present with significant morbidity and there is a growing proportion, up to 30%, of aggressive variants (WHO grade II and III). The creation of relevant genetically engineered mouse models is the cornerstone of future advances in meningioma treatment through pre-clinical testing and thorough dissection of molecular mechanisms of tumorigenesis. We here present the creation and characterization in vivo and in vitro of two new genetically engineered mouse models of meningioma : one model of Grade ll-lll meningioma through bi-allelic A//2 inactivation and homozygous Cdkn2ab deletion and one model of PDGF-(3-induced meningioma, with or without bi-allelic A//2 inactivation. On the basis of recent whole genome studies, we also set the bases of two future A//2-independant GEM meningioma models through Akt and Smo activation. The establishment of mouse meningioma cell lines and a syngenic orthotopic meningioma mouse model allowed the evaluation of a new handheld confocal imaging device and will eventually lead to future « co-trials »
Pineau, sandra. "Etude de l'implication des microARNs dans la progression tumorale grâce au modèle réversible de la transformation leucocytaire induite par Theileria". Paris 7, 2011. http://www.theses.fr/2011PA077133.
Texto completoThe acquisition and maintenance of cellular identity involve an equilibrium between proliferation and differentiation. Imbalance between those two states can result in different types of diseases, including cancer. Tumor progression is a multistep process in which genetic and epigenetic modifications sequentially alter gene expression. To examine the impact of these mechanisms, we are studing a unique model of reversible bovine leukocyte transformation induced by an intracellular eukaryotic parasite: Theileria. Bovine leukocytes infected with Theileria exhibit a cancerous phenotype, but when the parasite is eliminated cells enter quiescence or apoptosis. We describe a three-partner positive feedback loop. We show that the microRNA-155 represses the expression of the protein DET1, a member of the COP1 complex which ubiquitinates c-Jun. We show that AP-1 activates thé expression of BIC which contains miR-155. This loop maintains the miR-155 and AP-1 action on their target genes and stimulates cell proliferation. Finally, we demonstrate that the deregulation of any loop member alters the expression of the two other members and leads to apoptosis. We have identified a new target of the microRNA let-7: Polycomb protein EZH2. EZH2 and let-7 expression were inversely correlated ; LIN28 expression, a let-7 post-transcriptional repressor, was correlated with EZH2 expression in models of cancer and cell differentiation. My results suggest a direct inhibition of EZH2 expression by let-7, correlates with of EZH2 target genes including ADRB2 protein involved in invasive processes. I also showed that let-7 overexpression in transformed cells decreased the invasive capacity
Rederstorff, Mathieu. "Etude du rôle du sélénium et de la sélénoprotéine N dans les pathologies musculaires". Université Louis Pasteur (Strasbourg) (1971-2008), 2006. https://publication-theses.unistra.fr/public/theses_doctorat/2006/REDERSTORFF_Mathieu_2006.pdf.
Texto completoDelacôte, Claire. "Vers une meilleure compréhension de la maladie du foie liée à l'alcool et des facteurs influençant sa progression : approche de modélisation". Thesis, Lille 2, 2020. http://www.theses.fr/2020LIL2S029.
Texto completoIn France, excessive alcohol consumption is the leading cause of cirrhosis and hepatocellular carcinoma (HCC), ahead of viral hepatitis and metabolic syndrome. In 2016, there were nearly 10,500 deaths by cirrhosis or HCC, despite a significant decrease in per capita alcohol consumption since 1960 (26L in 1960, 11.7L in 2017).Alcohol drinkers are at risk of developing alcohol-related liver disease (ALD). It progresses from the initial stage of steatosis to more advanced stages of fibrosis and cirrhosis, which may lead to complications: decompensation and HCC. ALD is an asymptomatic disease prior to the onset of complications, and many patients are diagnosed late with life-threatening consequences.Implementing early actions targeting excessive alcohol drinkers could help to reduce liver morbidity and mortality through the avoidance or earlier diagnosis of complications. The evaluation of the possible benefit of such public health actions requires, on the one hand, knowledge of the different stages leading to the development of complications and, on the other hand, knowledge of the impact of risk factors on progression, in order to be able to determine the populations to target. Among the risk factors identified, the metabolic syndrome plays an important role. Thus, in order to understand the mechanisms of evolution of ALD, it is necessary to study in parallel those leading to non-alcoholic fatty liver disease (NAFLD).The natural history of ALD is still poorly described, especially for the stages preceding cirrhosis. Mathematical modeling provides a conceptual framework to overcome the ethical issues that would arise from a cohort study of the evolution of ALD.The main objective of this work is to mathematically reconstruct the natural history of ALD and to predict the associated morbidity and mortality. The secondary objectives are to estimate the incidence of this pathology and to identify the at-risk population. For this purpose, we developed a Markov model that simulates the trajectory of cohorts of individuals from the moment they start at-risk alcohol consumption until their death. It integrates the main risk factors described as associated with the progression of ALD in the literature (sex, age, overweight and obesity, amount of alcohol, genetic polymorphism). Unknown parameters of progression are estimated by a back-calculation method.Three steps were necessary to supply and calibrate this model : 1) characterize mortality by decompensated cirrhosis and HCC related to alcohol consumption or metabolic syndrome from data provided by the French National Hospital Discharge database; 2) set up a Markov model on hospitalization data of excessive consumers to estimate the progression of fibrosis; 3) implement a Markov model on survey data from the general French population to estimate the process of entry into at-risk alcohol consumption or the onset of overweight and obesity.In conclusion, this work is the first to characterize the progression of ALD in the general French population. It is based on robust epidemiological data to which new insights are provided. The developed tools could be used to test the impact of public health policies that could be implemented in populations most likely to develop liver damage
Buatois, Simon. "Novel pharmacometric methods to improve clinical drug development in progressive diseases". Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC133.
Texto completoIn the mid-1990, model-based approaches were mainly used as supporting tools for drug development. Restricted to the “rescue mode” in situations of drug development failure, the impact of model-based approaches was relatively limited. Nowadays, the merits of these approaches are widely recognised by stakeholders in healthcare and have a crucial role in drug development for progressive diseases. Despite their numerous advantages, model-based approaches present important drawbacks limiting their use in confirmatory trials. Traditional pharmacometric (PMX) analyses relies on model selection, and consequently ignores model structure uncertainty when generating statistical inference. The problem of model selection is potentially leading to over-optimistic confidence intervals and resulting in a type I error inflation. Two projects of this thesis aimed at investigating the value of innovative PMX approaches to address part of these shortcomings in a hypothetical dose-finding study for a progressive disorder. The model averaging approach coupled to a combined likelihood ratio test showed promising results and represents an additional step towards the use of PMX for primary analysis in dose-finding studies. In the learning phase, PMX is a key discipline with applications at every stage of drug development to gain insight into drug, mechanism and disease characteristics with the ultimate goal to aid efficient drug development. In this thesis, the merits of PMX analysis were evaluated, in the context of Parkinson’s disease. An item-response theory longitudinal model was successfully developed to precisely describe the disease progression of Parkinson’s disease patients while acknowledging the composite nature of a patient-reported outcome. To conclude, this thesis enhances the use of PMX to aid efficient drug development and/or regulatory decisions in drug development
Libros sobre el tema "Modèles de progression de maladies"
1951-, Morgan Douglas W. y Marshall Lisa A. 1954-, eds. In vivo models of inflammation. Basel: Birkhauser Verlag, 1999.
Buscar texto completoComité national d'évaluation de la recherche (France). Recherche sur l'animal et santé de l'homme. Paris: Documentation française, 2003.
Buscar texto completoNelson, Trisalyn. Using conditional spatial randomization to identify insect infestation hot spots. Victoria, B.C: Pacific Forestry Centre, 2007.
Buscar texto completoH, McNeill John, ed. Experimental models of diabetes. Boca Raton, Fla: CRC Press LLC, 1999.
Buscar texto completoBjörklund, Niklas. Source or sink stands: Can stand parameters be used to predict mountain pine beetle brood production with enough precision to be useful for assigning treatment priorities? Victoria, B.C: Pacific Forestry Centre, 2008.
Buscar texto completo1955-, Chow Shein-Chung y Liu Jen-pei 1952-, eds. Design and analysis of animal studies in pharmaceutical development. New York, NY: Marcel Dekker, Inc., 1998.
Buscar texto completoFilaretova, L. P. (Li︠u︡dmila Pavlovna) y Takeuchi K. (Koji), eds. Cell/tissue injury and cytoprotection/organoprotection in the gastrointestinal tract: Mechanisms, prevention, and treatment. Basel: Karger, 2012.
Buscar texto completoRobertson, C. Preliminary risk rating for mountain pine beetle infestation of lodgepole pine forests over large areas with ordinal regression modelling. Victoria, B.C: Pacific Forestry Centre, 2009.
Buscar texto completoJörg, Traber, Gispen Willem Hendrik y International Tropon-Bayer Symposium on Aging of the Brain (2nd : 1984 : Cologne, Germany), eds. Senile dementia of Alzheimer type: Early diagnosis, neuropathology, and animal models. Berlin: Springer-Verlag, 1985.
Buscar texto completo1959-, Rigalli Alfredo y Di Loreto, Veronica Elina, 1968-, eds. Experimental surgical models in the laboratory rat. Boca Raton: Taylor & Francis, 2009.
Buscar texto completoCapítulos de libros sobre el tema "Modèles de progression de maladies"
ALIZON, Samuel. "Phylodynamique". En Modèles et méthodes pour l’évolution biologique, 269–91. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9069.ch11.
Texto completoBÉAL, Jonas, Élisabeth REMY y Laurence CALZONE. "Connecter les modèles logiques aux données omiques". En Approches symboliques de la modélisation et de l’analyse des systèmes biologiques. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9029.ch4.
Texto completoROBIN, Diane, Léa MERLET y Patrice MARCHAND. "Aspects réglementaires du biocontrôle". En Biocontrôle des maladies des plantes, 11–28. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9098.ch1.
Texto completoRane, Bhushan Rajendra, Mounika Shankaraiah Bharath, Rutuja Raju Patil, Raj K. Keservani y Ashish S. Jain. "Novel Approaches in Nutraceuticals". En Advances in Medical Diagnosis, Treatment, and Care, 241–66. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4453-2.ch011.
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