Dissertationen zum Thema „Facteurs de risque de maladie cardiaque“
Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an
Machen Sie sich mit Top-50 Dissertationen für die Forschung zum Thema "Facteurs de risque de maladie cardiaque" bekannt.
Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.
Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.
Sehen Sie die Dissertationen für verschiedene Spezialgebieten durch und erstellen Sie Ihre Bibliographie auf korrekte Weise.
Jouven, Xavier. „Mortalité et troubles du rythme cardiaque dans la population“. Paris 11, 2000. http://www.theses.fr/2000PA11T064.
Der volle Inhalt der QuelleIn the population, cardiac arrhythrnias are associated with an increased cardiovascular morbidity and mortality. We used epidemiological anaysis toidentify predictors of cardiovascular mortality associated with isolated atrial fibrillation, and with premature ventricular depolarizations, and new risk factors for sudden death. Data were issued from the Paris Prospective Study I which included 7 746 middle-aged men (42 to 53 years) between 1967 and 1972, and their mortality was followed until January 1994. Isolated atrial fibrillation was associated with an increased cardiovascular mortality with a relative risk of 4. 31[2. 14-8. 68]. The occurrence of frequent premature ventricular depolarizations during exercise was associated with an increased cardiovascular mortality, with a relative tisk of 2. 53 [1. 65-3. 88], similar to that associated with a positive exercise test. A parental history of sudden death was a specific risk factor for the occurrence of sudden death, whereas diabetic status, high resting heart rate, and high plasma level of circulating non esterified fatty acids were independent risk factors for sudden death but not for fatal myocardial infarction. Athough further studies are required, some form of primary prevention may be considered
Bonnet, Guillaume. „Stratification du risque cardio-vasculaire et de mortalité chez le patient transplanté cardiaque“. Electronic Thesis or Diss., Université Paris Cité, 2021. http://www.theses.fr/2021UNIP5251.
Der volle Inhalt der QuelleMore than 5000 heart transplants are performed each year worldwide, with a median post-transplant survival of more than 12 years. Risk stratification of post-transplant outcomes has become a priority for the transplant community, particularly in the face of the new French allocation system and following the recent revision of the US cardiac allocation system. The objective of this work was to identify ways to improve the risk stratification of cardiovascular events and mortality in heart transplant patients. First, in our analysis of a contemporary United Network for Organ Sharing (UNOS) cohort, we showed that circulatory support status at the time of transplantation was associated with large differences in patient characteristics and prognosis, and influenced post-transplant predictive models. However, the development of specific predictive models for each type of circulatory support had a limited impact on the statistical performance of the predictive models. Beyond the limitations that these approaches may represent on large national databases (low level of granularity with the absence of immunological data, missing data in the follow-up), we have constituted a multicentric and highly phenotyped prospective Ile-de-France database of heart transplant patients. Within this specific population and following a detailed medical review of the causes of death, our results showed that sudden death was a large cause of death beyond the first year post-transplant. We demonstrated that the annual incidence of sudden death was 25 times higher than in the general population. The risk of sudden death was significantly higher in younger recipients. Five variables were independently associated with sudden death: older donor age, younger recipient age, ethnicity, pre-existing donor-specific antibodies and left ventricular ejection fraction. Our results provide new insights into the epidemiology of sudden death after heart transplantation. Finally, we identified, for the first time, 4 distinct trajectories of long-term progression of cardiac allograft vasculopathy using an innovative unsupervised approach. These 4 trajectories were consistent and validated in geographically distinct cohorts (Europe and USA). We found that these trajectories were associated with specific donor and recipient characteristics, ongoing disease processes including rejection, and early immunological profiles after transplantation. Thus, patient trajectory assessment that can be performed at an early stage after transplantation can optimise post-transplant risk stratification. These different avenues can lead to the development of new risk stratification tools, which can sometimes be transposed to daily practice. The identification of subgroups of high-risk patients would lead to more aggressive preventive strategies to improve overall long-term survival
Solinhac, Ganne Patricia. „Les troubles de la conduction au cours des myopathies : à propos de 2 observations“. Bordeaux 2, 2000. http://www.theses.fr/2000BOR2M110.
Der volle Inhalt der QuelleRoudaut-Laffort, Alexa. „Les neuroleptiques et les troubles du rythme et de la conduction cardiaque“. Bordeaux 2, 1999. http://www.theses.fr/1999BOR2P068.
Der volle Inhalt der QuelleDelrieux, Frédéric. „Complications cardio-vasculaires dans la maladie de Behçet : à propos d'un cas à la révélation exceptionnelle“. Bordeaux 2, 1999. http://www.theses.fr/1999BOR2M169.
Der volle Inhalt der QuelleBlocquel, Laurence. „Troubles de la conduction sous interféron : à propos d'une observation“. Bordeaux 2, 2000. http://www.theses.fr/2000BOR2M097.
Der volle Inhalt der QuelleDucamp, Philippe. „Complications cardiaques tardives de la radiothérapie : à propos de deux cas étudiés au CHU Haut-Lévêque (Pessac)“. Bordeaux 2, 1999. http://www.theses.fr/1999BOR2M138.
Der volle Inhalt der QuellePouplin, Luc Lepelletier Didier. „Médiastinite après chirurgie cardiaque chez l'adulte facteurs de risque de mortalité /“. [S.l.] : [s.n.], 2007. http://castore.univ-nantes.fr/castore/GetOAIRef?idDoc=21956.
Der volle Inhalt der QuelleArtignan, Juliette. „Décrire et comprendre les mécanismes d'observance au traitement médicamenteux chez les patients polypathologiques : application aux maladies cardiovasculaires et au cancer du sein“. Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPASR001.
Der volle Inhalt der QuelleMultimorbidity raises significant concerns for clinicians and policymakers, both from a health and economic perspective, due to its complex management and the pressure it exerts on healthcare systems. Medication compliance, compromised by the multiplication of drug treatments, represents one of the challenges posed. In this thesis, we explored the mechanisms underlying medication-taking decisions made by patients with multimorbidity using both quantitative and qualitative methods. We focused on patients with cardiovascular conditions and, among them, women with breast cancer.The first two parts used data from the French National Health Data System (SNDS). First, using survival models, we showed that compliance with cardiovascular drugs was associated with better persistence with endocrine therapy over five years in women over 50 with non-metastatic hormone-dependent breast cancer. A third of the patients discontinued endocrine therapy and over half were non-compliant to at least one of their cardiovascular drug. Second, we identified cardiovascular drug compliance trajectories over three years - one year before and two years after a cancer diagnosis. The mean trajectory showed a decline in compliance over time, more pronounced in the months following the diagnosis. This trajectory masked highly heterogeneous behaviours, revealed using a group-based trajectory model. Six distinct trajectories were identified. Half of the women belonged to a trajectory of high and stable adherence throughout the study period. Other trajectories were relatively stable over time but at insufficient levels of compliance, while others experienced a marked decline following the diagnosis. Patients included in each trajectory differed according to various characteristics: type of surgery, chemotherapy and the presence of metastases, reflecting cancer severity.The third part adopted a qualitative approach to examine the underlying rationales for compliance decisions in a sample of 20 multimorbid patients with cardiovascular conditions. Many shared common concerns about their treatments, particularly the fear of excessive medication use, and managed complex situations involving contradictory or ambiguous medical recommendations. In this context, we identified two main approaches used by patients to explain why they did or did not follow their prescriptions. Some completely delegated decisions about their treatments to their doctors, while others meticulously examined their prescriptions to ensure they aligned with their own evaluation. These approaches represented the opposite sides of a continuum of behaviours, where patients were positioned based on their health cultural capital and socio-economic status. The results of this thesis provide insights into the compliance behaviours of patients with multimorbidity and suggest strengthening individualised approaches to better support them
Olié, Valérie. „La maladie veineuse thromboembolique : étude des facteurs de risque de récidive“. Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00719318.
Der volle Inhalt der QuelleCowppli-Bony, Kwassy Pascale Ahou. „Epidémiologie de la démence : facteurs de risque vasculaire, accident vasculaire cérébral et risque de démence“. Bordeaux 2, 2007. http://www.theses.fr/2007BOR21503.
Der volle Inhalt der QuelleIn France for some years, public health strategies for dementia namely Alzheimer disease (AD), is more and more recognized as a necessary priority. Prevention of incident cases of dementia and medico social management of demented patients are key points of these strategies. Vascular risk factors (VRF) are more and more evocated for a contribution to AD pathogenesis which to date remains unclear. So VRF are a hope for the prevention of AD which is the most frequent type of dementia. However an important question remains debate : Do VRF have a "direct" influence on AD risk or do they have only an "indirect" influence on this risk with vascular disease as a stroke ? The diagnosis of AD at an early stage which has potential advantage for the patient and his family is mainly based on the generalist practitioner. This thesis of epidemiology assess in a french population, (1) the influence of diabetes mellitus, hypercholesterolemia, hypertension, smoking and stroke on the risk of incident dementia (2) the validity of a neuropsychological memory test for the screening of AD which could be used by the general practitioner
Marquis, Karine. „Facteurs de risque de la maladie cardiovasculaire chez les patients atteints d'une maladie pulmonaire obstructive chronique“. Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25524/25524.pdf.
Der volle Inhalt der QuelleGuay, Simon-Pierre. „Étude des déterminants épigénétiques de facteurs de risque de la maladie cardiovasculaire“. Thèse, Université de Sherbrooke, 2014. http://savoirs.usherbrooke.ca/handle/11143/5304.
Der volle Inhalt der QuelleGiroux, Élodie. „Épidémiologie des facteurs de risque : genèse d'une nouvelle approche de la maladie“. Paris 1, 2006. http://www.theses.fr/2006PA010665.
Der volle Inhalt der QuelleEmpana, Jean-Philippe. „Facteurs de risque de la mort subite d'origine cardiaque de l'adulte en population générale“. Paris 11, 2005. http://www.theses.fr/2005PA11T013.
Der volle Inhalt der QuelleBastien, Marjorie. „Étude des facteurs de risque de la maladie cardiovasculaire chez les patients avec maladie de l'aorte thoracique“. Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28641/28641.pdf.
Der volle Inhalt der QuelleMoranne, Olivier. „Facteurs de risque de progression et de complications de la maladie rénale chronique“. Paris 11, 2008. http://www.theses.fr/2008PA11T023.
Der volle Inhalt der QuelleBouhali, Tarek. „L'adiponectine, un modulateur du risque de maladie coronarienne athérosclérotique dans l'hypercholestérolémie familiale“. Thèse, Université Laval, 2006. http://constellation.uqac.ca/468/1/24822437.pdf.
Der volle Inhalt der QuelleDamon, Didier. „Statut matrimonial du sujet âgé et risque de démence ou de maladie d'Alzheimer : résultats de l'enquête longitudinale Paquid“. Bordeaux 2, 1997. http://www.theses.fr/1997BOR2M076.
Der volle Inhalt der QuelleBennia, Fatiha. „Le risque cardiovasculaire : l'environnement de diffusion des facteurs de risque modifiables“. Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM5060/document.
Der volle Inhalt der QuelleHealth is a dynamic and multifactor construction which has both an individual and a social dimension. The latter may have a direct or indirect effect on the behaviour of individuals and their life choices. The Framingham study has revealed that cardiovascular risk is multifactorial and, as such, its estimate should be global. However, the assessment of global cardiovascular risk methods do not take into account the living environment of individuals, which would factor the development of modifiable risk factors. Through this work, we highlight the characteristics of the environment of dissemination of modifiable cardiovascular risk factors: metabolic and behavioural. Since decades, the North region of France has, for cardiovascular diseases, a high level of global and premature mortality. We are asked about the determinants of the situation of this region, by comparing it to other French regions and by exploring the link between a high cardiovascular risk and an unfavourable economic situation. Thus, we are interested in the link between the distribution of cardiovascular risk and the distribution of income, using normative criteria based on the concept of expected social dominance in terms of poverty. Shedding a light on factors favouring the occurrence of cardiovascular problems and analyzing the knowledge about the individual’s life environment allows a better understanding of the mechanisms of diffusion of the modifiable risk factors, with a double objective to lower the incidence and prevalence of cardiovascular diseases and to reduce the social inequalities in health
Helmer, Catherine. „Aspects épidémiologiques des dém̀ences et de la maladie d'Alzheimer : facteurs de risque et pronostic“. Bordeaux 2, 2000. http://www.theses.fr/2000BOR28900.
Der volle Inhalt der QuelleDementia represents a major Public Health problem which care is deficient for the moment. However, several possibilities exist to face this problem. It is necessary to develop the prevention of this disease acting on its factors. We analysed the effect of several potential risk factors of dementia and Alzheimer's disease (marital status, profession, tobacco, diabetes). Some of these factors provide tracks of prevention ; others could allow to develop actions of prevention. It is of prime importance to continue analysing the risk factors of this disease on which it will be possible to act, with a particular interest for the vascular factors. In addition to prevention, it is also necessary to improve the care of the demented persons and their relatives,, as soon as the disease is diagnosed and at every stage of its evolution. Assessment of the needs of the demented population is required to improve the care, which implicates to know better the consequences of the disease. We present here the analysis of the consequences of dementia in term of mortality, carried out by using biostatistic models allowing to take into account the specific methodological difficulties of this analysis. The other major consequences of the dementia, in particular the disability and institutionalisation, will have also to be taken into account. After the phase of observation, it will be necessary to promote the intervention studies, as well in the field of prevention as in the field of care
Bouaziz, Borji Lobna. „Les gènes de prédisposition à la maladie thromboembolique veineuse dans une population tunisienne“. Reims, 2006. http://theses.univ-reims.fr/exl-doc/GED00000301.pdf.
Der volle Inhalt der Quelle@Venous thromboembolism is one of the major causes of morbidity and mortality in different parts of the world, including Tunisia, adding a high cost to national health programs. Genetic risk factors responsible for thrombophilia have been reconized to have an important role in caucasian populations. Studies about the association between genetic risk factors and venous thromboembolism studies are lacking in the Tunisian population. The first part of this document is an epidemiological study aiming at determining the frequency of FV Leiden, FII G20210A and MTHFR C677T mutations in healthy and thrombophilic Tunisian populations and to estimate the risk of venous thrombosis. We also, have presented data about the frequency and odd- ratio of factor V Cambridge, factor V Hong Kong and haplotype HR2 polymorphisms in Tunisia. Our study suggests that factor V Leiden mutation is present in the tunisian population at a frequency similar to that reported in European population and that it is associated with an increased risk for venous thrombembolism in Tunisians. In the second part, we evaluate the use of thrombin generation assay in the screening of patients who require specific thrombophilic risk factor testing. Thrombin generation assay is performed in platelet rich plasma , with and without immunopurified activated protein C, and with and without Protac®, a fast-activating PC activator isolated from the venom of Agkistrodon Contortrix. Specific profiles of thrombin generation corresponding to each type of thrombophilic risk factor were analysed. Receiver-operating characteristics (ROC) curves analysis was performed to determine relevant cut-offs for the identification of patients who need further testing (negative predictive value, 100%)
Bouaziz, Borji Lobna Nguyen Philippe. „Les gènes de prédisposition à la maladie thromboembolique veineuse dans une population tunisienne“. S.n. : S.l, 2006. http://scdurca.univ-reims.fr/exl-doc/GED00000301.pdf.
Der volle Inhalt der QuelleTitre provenant de l'écran-titre. Bibliogr. p.110-155.
Guerchet, Maëlenn. „Démences en Afrique Subsaharienne : outils, prévalence et facteurs de risque“. Limoges, 2010. https://aurore.unilim.fr/theses/nxfile/default/fe688b2d-faf5-4218-aa10-892e966abae9/blobholder:0/2010LIMO310D.pdf.
Der volle Inhalt der QuelleGiven the ageing population worldwide and the consequent epidemiological transitions, dementia is now a major public health concern in developing countries. The burden of dementia implies human, social, and economical consequences. First estimates of dementia prevalence in developing countries reported low rates (<5%) contrasting with observations made in developed countries, ranging from 5 to 20%. Few studies have been carried out in Africa whereas african elderly population will dramatically increase by 2025. During this PhD thesis, we studied the different tools allowing to screen dementia in low income countries, where culture differences and illiteracy are important. The determination of age in epidemiological studies focused on neurodegenerative disorders like dementia is of great importance, so a method to estimate the age with historical landmarks was validated. Three population-based studies were carried out in french speaking african countries: in Djidja (Benin), in Bangui (Central African Republic) and in Brazzaville (Congo), in order to estimate prevalence of dementia in elderly over 65 years and to study risk factors for this affection. By a door-to-door approach, these studies allowed to screen about 500 subjects in each study site with the Community Screening Interview for Dementia (CSI-D) and the Five Words Test. The prevalence of dementia was low in the rural area of Benin (2. 6%), whereas it was higher in Central African cities (8. 1% in Bangui and 6. 7% in Brazzaville). Age and current depressive symptoms were the two factors most significantly associated with dementia in these populations. Surprisingly, the absence of schooling was never associated with dementia. The association between dementia and Lower-Extremities Peripheral Artery Disease (PAD) has particularly been explored in Central Africa, using the ankle-brachial index as a marker of PAD and general atherosclerosis. While the prevalence of PAD was high in elder population (15. 0% in Bangui and 32. 4% in Brazzaville), a low ABI (<0. 9) was often associated with dementia, even after adjustment on CVD and dementia risk factors. Researches on dementia in low-income countries have increased during the last years. Prevalence of dementia seems to vary between different regions of Africa, and between urban and rural areas. Beyond the usual risk factors for dementia, our studies highlighted the role of psychosocial risk factors in low income countries
Compeyrot, Sandrine. „Facteurs de risque de maladie veino-occlusive hépatique après allogreffe de moelle osseuse pédiatrique“. Montpellier 1, 2001. http://www.theses.fr/2001MON11001.
Der volle Inhalt der QuelleHelmer, Catherine. „Absence d'association entre période de naissance et risque de démence ou de maladie d'Alzheimer : analyse des données de la cohorte Paquid, 1988-1996“. Bordeaux 2, 1997. http://www.theses.fr/1997BOR23093.
Der volle Inhalt der QuelleGilleron, Véronique. „Niveau d'études et risque de démence : résultats de l'enquête Paquid“. Bordeaux 2, 1997. http://www.theses.fr/1997BOR28473.
Der volle Inhalt der QuelleLachance, Philippe. „Corrélation entre certains polymorphismes génétiques et l'expression de certains facteurs de risque de maladie coronarienne“. Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26472/26472.pdf.
Der volle Inhalt der QuelleRouch-Leroyer, Isabelle. „Performances neuropsychologiques et risque de démence ou de maladie d'Alzheimer : analyse des données de la cohorte Paquid“. Bordeaux 2, 1995. http://www.theses.fr/1995BOR23082.
Der volle Inhalt der QuellePiché, Marie-Eve. „Étude des facteurs de risque associés à la maladie cardiovasculaire et au diabète de type 2“. Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24206/24206.pdf.
Der volle Inhalt der QuelleAl, Frouh Fadi. „Analyse des facteurs de risque de maladie thromboembolique veineuse (MTEV) chez les femmes sous contraception oestroprogestative“. Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0663/document.
Der volle Inhalt der QuelleThe aim of our first study was to identify the genetic and environmental determinants of venous thromboembolism (VTE) risk in a large sample of women using combined oral contraceptives (COC). A total of 968 women with a personal history of VTE during COC use were compared with 874 women under COC, but no personal history of VTE. After adjustment for confounding factors, the main environmental determinants of VTE were smoking odds ratio (OR = 1.65) and a body mass index greater than 35 kg.m-2 (OR = 3.46). In addition, severe hereditary thrombophilia (OR = 2.13) and non-O blood groups (OR = 1.98) have been shown to be important genetic risk factors for VTE under COC. First-degree family history of VTE predicts thrombophilia poorly. In conclusion, this study confirms the influence of smoking and obesity and for the first time the impact of ABO blood group on the risk of VTE in women under COC It also confirms the low sensitivity of the family history of VTE to detect hereditary thrombophilia. The purpose of the second study was to study, in COC users, the impact of newly identified genetic polymorphisms by genome-wide as associated with the risk of VTE in the general population. Nine polymorphisms on the KNG1, F11, F5, F2, PROCR, FGG, TSPAN15 and SLC44A2 genes were genotyped in a sample of 766 patients and 464 controls in the PILGRIM study. Only the rs2289252 polymorphism on the F11 was significantly associated with the risk of VTE. The presence of the F11 rs2289252-A allele was associated with an increased risk of VTE (OR = 1.6). In addition, the combination of the rs2289252-A allele and the non-O blood group was associated with an OR risk of 4
Masson, Philippe. „Etude des facteurs de risque de calcification rénale chez l'enfant broncho-dysplasique“. Bordeaux 2, 1992. http://www.theses.fr/1992BOR23016.
Der volle Inhalt der QuelleCazal, Julien. „Prévenir la maladie cardiovasculaire : socio-éthnologie du risque et de l'incitation sanitaire“. Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1727/.
Der volle Inhalt der QuellePrevention of cardiovascular disease is a major public health issue. The aim of the management is to train the patient so that he could adopt healthy behavior to reduce the risk of serious complications. Medical institution act in this direction on the development of self-government. From an ethnographic study conducted in two devices support (detection, rehabilitation) and interviews (n = 59) with professional and patient, research shows how to build "the self-caregiver" by training in risk and promoting change in lifestyle. The first part characterizes the intervention logic specific to each device and shows that the self-government is considered as an individualized or collective approach to risk depending on whether the detection or rehabilitation. The second part is, following an interactionist perspective, the construction of the risk and self-government within the devices. It shows that detection prevails risk learning through a comprehensive, multifactorial health, while in rehabilitation it is learning to live with the risk by a physical discipline. Finally, the third part shows, following a cultural approach to risk, how the medical establishment and the patient think the risk symmetrically. Three positions are determined in relation to the social positions of patients: the "admnistered" who is in the delegation to the medical community, the "medical helper" partner device that adheres to a model of prevention, "the patient-citizen "who is critical of the medical institution
Nascimento, Stieffatre Marli Aparecida. „Maladie mentale et résilience : la réinsertion socioprofessionnelle des personnes souffrant de troubles mentaux graves“. Paris 8, 2009. http://www.theses.fr/2009PA083605.
Der volle Inhalt der QuelleThe study of resilience in people with mental disorders begun since few years and publications are scarce. The psychological dysfunction is now considered as an evidence that protective factors were absent or unable to prevent the occurrence of mental disorders. However, this not imply that is impossible to develop in psychiatric patients capacities that may facilitate the implementation of the process leading to a better adaptation, to resilience. Retrospective study of 267 files, discussions with professionals working in the field of the rehabilitation, semi-directive interviews with patients and the administration of a self esteem scale showed that that implementation of the resilience process is possible. Results showed also that early traumatic events are related to poorer outomes. On the other hand, people with higher self esteem, with the feeling that they control theirs functioning and their environment, give a sense to their life and make plans for the future. The analysis of individual dynamics allowed the identification of the resilience process stages. The present dissertation proves the relevance of the resilience theory for the care and the follow-up of the psychiatric patients
Chouraki, Vincent. „Études d’association pangénomique appliquées à la recherche de nouveaux facteurs de risque génétique de la maladie d’Alzheimer“. Thesis, Lille 2, 2013. http://www.theses.fr/2013LIL2S011/document.
Der volle Inhalt der QuelleDementia is a syndrom caused by several brain diseases progressively deteriorating cognitivefunctions and occurs more frequently in the elderly. The increased number of patients withdementia due to the ageing of the general population and the high cost of care add up tomake dementia a concerning public health issue.Alzheimer’s disease (AD) is the most common form of dementia. It is often diagnosedafter 65 years old and has a strong genetic component. Familial forms exist and are mainlycaused by mutations in the amyloid-b protein precursor, presenilin 1 and presenilin 2 genes.However, the vast majority of cases result from the complex interaction of environmental factors with susceptibility genes.Using a candidate gene approach, numerous genes associated with AD risk were identified,but due to technical and methodological problems, only the apoliprotein E (APOE) genewas replicated. Genome-wide association studies (GWAS) aim to identify frequent geneticvariants associated with disease risk in a hypothesis-free manner. Starting 2009, severalconsortia aiming to perform this type of analyses in the field of AD robustly identified fournew genes associated with AD risk, CLU, PICALM, CR1 and BIN1. However, these genes puttogether only explain a small proportion of the total genetic variance of AD and the searchfor new susceptibility genes remains an important goal for AD research.In this work, we first tried to replicate the results of the top genes reported using thecandidate gene approach, using GWAS data from the European Alzheimer’s Disease Initiative(EADI). Most of these genes showed weak levels of association. Using GWAS, we were ableto identify 19 new genes associated with AD risk besides APOE, including 11 that had notbeen reported by previous studies, first through an informal collaboration between consortia,then under the name of International Genomics of Alzheimer’s Disease Project (IGAP).Assuming that use of endophenotypes related to AD would be relevant for the discoveryof genetic variants involved in the early pathophysiology of AD, we then performed aGWAS of plasma amyloid-b (Ab) concentrations. This study showed suggestive asssociationsbetween the CTXN3 gene on chromosome 5 and Ab1−42 plasma levels.To sum up, using GWAS enabled us to identify new genes associated with AD risk. Thesegenes point to interesting new research hypotheses and hopefully, to a better understandingof AD pathophysiology and development of effective drugs
Chouraki, Vincent. „Études d'association pangénomique appliquées à la recherche de nouveaux facteurs de risque génétique de la maladie d'Alzheimer“. Phd thesis, Université du Droit et de la Santé - Lille II, 2013. http://tel.archives-ouvertes.fr/tel-00966817.
Der volle Inhalt der QuelleArtero, Sylvaine. „Détection des troubles cognitifs légers (MCI) : algorithmes diagnostiques, dépistage et validité prédictive“. Montpellier 1, 2004. http://www.theses.fr/2004MON1T004.
Der volle Inhalt der QuelleBauer, Charlotte. „Contribution à l'étude des facteurs de risque pour la maladie d'Alzheimer : analyse de candidats identifiés par étude d'association pangénomique ou GWAS“. Electronic Thesis or Diss., Université Côte d'Azur, 2023. http://www.theses.fr/2023COAZ6049.
Der volle Inhalt der QuelleAlzheimer's disease (AD) is characterized by memory loss, cognitive impairment and loss of autonomy. AD is a rare disease before the age of 65. In fact, about 1% of AD patients are younger than 65 and these forms are essentially hereditary familial forms called early onset Familial Alzheimer's disease (FAD). As with any chronic disease, there is an individual susceptibility depending on aging and other environmental factors that promotes more or less the onset of the disease. The risk of developing AD is generally increased by 1.5 if one first-degree parent is affected. It is increased by 2 if two or more are affected. This individual susceptibility is partly determined by our genome. Knowledge of the genes responsible for this susceptibility, identified during the Alzheimer's Plan (2008-2012) by GWAS (Genome-Wide Association Studies), provides a better understanding of disease progression. Some susceptibility genes are involved in amyloid peptide metabolism, while others are involved in lipid metabolism, innate immunity, inflammation, synaptic function or hippocampal function. This diversity testifies to the great complexity of the disease's underlying mechanisms. One of the histopathological markers of AD is the presence in the brain of extracellular deposits consisting mainly of the amyloid Ab peptide. This peptide is derived from the cleavage of bAPP (b-Amyloid Precursor Protein) by b- and g-secretase activities, which release the peptide's amino- and carboxy-terminal ends respectively. In this thesis, I will focus on the SorLA protein (Sorting protein-related receptor containing LDLR class-A repeats), a member of the sortilin family of transport proteins first described in 1997. Studies based on autopsies of human brains suggest the importance of SorLA in this organ. In addition, there is an association between genetic variants in the SORL1 gene (often mutations or SNPs for single nucleotide polymorphisms) and late-onset familial forms of AD, making it a risk factor. Over the past 20 years, several researchers have proposed that SorLA is involved in the endocytosis recycling of the bAPP protein. More succinctly, I'll study at the Pyk2 protein (Proline-rich Tyrosine Kinase 2), and its PTK2B gene (Protein Tyrosine Kinase 2 beta), initially described in cancers as Focal Adhesion Kinase (FAK) for its roles in migration, survival or proliferation, but increasingly studied in AD as described as another risk factor by GWAS
Lanoy, Léonard Fisch Alain. „Maladie veineuse thrombo-embolique et voyage aérien de courte durée réalités et perspectives /“. Créteil : Université de Paris-Val-de-Marne, 2009. http://doxa.scd.univ-paris12.fr:80/theses/th0512111.pdf.
Der volle Inhalt der QuelleSénage, Thomas. „Etude de la détérioration valvulaire structurelle des prothèses valvulaires biologiques cardiaques : validation d'une méthodologie adaptée pour estimer son incidence, ses facteurs de risque et son impact sur la survie des patients“. Thesis, Nantes, 2016. http://www.theses.fr/2016NANT1033/document.
Der volle Inhalt der QuelleWith a prevalence of 2% of patients older than 65 years old, the aortic valve stenosis is the main valvular heart disease with more than 200000 aortic valve replacement worldwide. The structural valve deterioration (SVD) remains the major flaw of implanted bioprostheses. However, due to methodological pitfalls observed in the current literature, its incidence may be underestimated. As an example, a true concern appeared lately concerning the Mitroflow® valve (SORIN group, Model LX/12A), with very early SVD observed in serval centers. Indeed, the true incidence of SVD for this valve remained unclear in the literature. We sought here to assess precisely the SVD incidence, the associated risk factors, and its impact on the patient survival. First, we used a extended Cox model, as the more frequent model used in published studies, and we reported an unusual and early SVD rate. Secondly, the Patient-Prosthesis Mismatch is still debated as a risk factor of SVD and we carried out an original model using propensity scores (IPW: Inverse probability weighting) in a multistate model to answer this question. At last, with an updated follow-up, we handled the intervalcensoring and competing risk through a multivariable illness-death model for interval censored data in order to get a better estimation of the true incidence of SVD and its impact in our cohort
Houle, Julie. „Approche socio-cognitive en réadaptation cardiaque : effets sur l'observance à l'activité physique, les facteurs de risque et la qualité de vie“. Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28029/28029.pdf.
Der volle Inhalt der QuelleLe, Flem Léna. „Etude du promoteur du gène de la thrombomoduline dans la maladie thrombotique veineuse“. Paris 5, 1997. http://www.theses.fr/1997PA05P031.
Der volle Inhalt der QuelleMoisan, Frédéric. „Prévalence et facteurs de risque professionnels de la maladie de Parkinson parmi les affiliés à la Mutualité Sociale Agricole“. Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00703143.
Der volle Inhalt der QuelleNoboa, Maria Soledad. „La prise en compte des facteurs temps dépendants dans l'évaluation du risque de récidive de la maladie veineuse thromboembolique“. Brest, 2008. http://www.theses.fr/2008BRES3073.
Der volle Inhalt der QuelleRouamba, Jérémi. „Peuplements, paysages et risque de maladie du sommeil à l'embouchure du Rio Pongo (Guinée-Conakry)“. Bordeaux 3, 2011. http://www.theses.fr/2011BOR30041.
Der volle Inhalt der QuelleSince second half of the XXe century, Coastal Guinea knows important dynamic of settlement, and particularly at the mouths of large rivers, where are located sleeping sickness foci. It is the case in the river mouth of Rio Pongo (prefecture of Boffa) where particular geographical conditions support the presence of men, tsetse flies and sleeping sickness. The aim of our work is to localize and characterize settlements, landscapes and activities at risk of contracting sleeping sickness in this territory very exploited by men. The settlement is characterized by villages located on mainland at the mainland/mangrove interface and on islands, generally composed by mangrove trees. A major part of the mainland population has activities on islands and a part of islands population came to mainland. The daily and seasonally mobility related to activities is carried out by using channels mangrove, privileged meeting places of men and tsetse flies. Our results show that mobility constitutes the main reason of the persistence of the disease in the mouth of Rio Pongo, because responsible of a high tsetse/human contact and of the low rate of villagers frequentation to medical survey. Our study permit to locate, identify and treat on a hierarchical basis, areas with trypanosome risk transmission in the mouth of Rio Pongo. That will be useful to orientate medical and entomological control
Boussuges, Alain. „Maladie de décompression : modifications hématologiques et détection des bulles circulantes“. Aix-Marseille 2, 1998. http://theses.univ-amu.fr.lama.univ-amu.fr/1998AIX20669.pdf.
Der volle Inhalt der QuelleBetter knowledge of the nitrogen supersaturation and desaturation phenomenoms together with their circulatory and biological consequences would be necessary for a better analysis of the physiopathology of the decompression illness (DCI). In this aim, we studied some parameters which could modify the production of nitrogen circulating bubbles, as an indice of nitrogen supersaturation. We demonstrated a lower circulating bubbles grade, following SCUBA dive with a lower ascent rate. We did not detect circulating bubbles after repeated and deep breath-hold living in underwater fishing divers. During those experimentations, continuous Doppler with blind positionning of the transducer appeared limited because of poor signal quality, in some subjects. In consequence, we developped a new method for the detection of circulating bubbles, which associates two-dimensionnal (2D) echocardiography and pulsed Doppler guided by 2D echocardiography. We performed a comparative study with the traditionnal continuous Doppler and we validated its performance. We think that this method for the detection of venous gas bubbles can also be proposed to critically ill patients suspected of iatrogenic venous gas embolism. Nitrogen supersaturation and desaturation phenomens may not resume DCI. We retrospectively analysed the clinical manifestations of an important population of patients victims of neurological decompression illness and we elaborated a gravity score of neurological DCI, which is necessary to allow comparaison of cohorts of patients. This first study underligned the difficulty to appreciate the individual severity with the only initial clinical signs. The venous haematocrit level may be another biological indice of severity as we demonstrated a correlation between an high haematocrit level and persistent neurological sequelae. At the contrary, we did not found any association between the severity of an accident and the activation of the coagulation
Laviolette, Louis. „Les femmes et la maladie pulmonaire obstructive chronique (MPOC)“. Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23752/23752.pdf.
Der volle Inhalt der QuelleLesage, Moussavou-Nzamba Mélissa. „Perception d'un programme d'activité physique et de prévention primaire et secondaire chez des personnes présentant une maladie cardiovasculaire ou des facteurs de risque reliés à cette maladie“. Thèse, Université du Québec à Trois-Rivières, 2008. http://depot-e.uqtr.ca/1857/1/030081831.pdf.
Der volle Inhalt der QuelleGaertner, Sébastien. „Impact des facteurs de risque cardio-vasculaire majeurs d'athérosclérose et du vieillissement sur la fonction endothéliale des vaisseaux fémoraux dans le risque de thrombose veineuse“. Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAJ119/document.
Der volle Inhalt der QuelleIdentification of risk factors for venous thromboembolism (VTE) is a major concern for the prevention of the disease and its recurrence. We have shown in humans that the cumulative cardiovascular risk factors (CVFR) for atherosclerosis were associated with unprovoked VTE, its severity and the risk of recurrence. Aging, CVRF and VTE risk factor, induced an endothelial dysfunction in the rat femoral vein involving cyclooxygenases (COX) associated with potential pro-thrombogenic prostanoids generation. In the young obese ZSF1 rat, cumulative CVRF induced early venous endothelial dysfunction related to COX-1 and 2. Omega-3 treatment in aging rats modulates arachidonic acid pathway leading to COX-2-mediated formation of less deleterious prostanoids, associated with a decreased thrombogenic risk, making omega-3 a potential adjuvant treatment for VTE
Hamdi, Leila. „Recherche de facteurs de risque immunologiques associés au lymphome hodgkinien de l’enfant“. Thesis, Paris 11, 2013. http://www.theses.fr/2013PA114844/document.
Der volle Inhalt der QuelleHodgkin’s Lymphoma (HL) is one of the most frequent lymphomas occurring in childhood. In young children, there is a high predominance in boys and frequent association with Epstein-Barr Virus (EBV). Cohort studies have shown that patients affected by several immune deficiency syndromes - e.g. X-linked lymphoproliferative syndrome (XLP), functional deficit of Fas/FasL pathway and common variable immunodeficiency (CVID) - are risk factors of HL. We intend to search for qualitative and quantitative immune deficiencies as susceptibility factors to child's HL in a prospective study related to Euronet –PHL C1 protocol. Eighty-three patients at diagnosis of HL have been analysed. Median age of the study population is 13 years, (5-18 years). Gender-ratio M/F is 1.1 with a larger male predominance before the age of 10 (gender-ratio of 3). The search for a defect of NKT population that would be suggesting of XLP was negative in all patients. A moderate expansion of circulating TCRαβ+ double negative cells (DNT) has been detected in 5 patients. This expansion has been further explored in the hypothesis of a defect of Fas/FasL pathway by plasmatic quantification of Fas ligand and Il-10. This led to the exclusionof the diagnosis of ALPS. An unexpected high frequency of B-cell lymphopenia has been detected in 31 out of 83 patients (37%). Peripheral B cell lymphopenia was associated with the following poor prognostic factors: advanced stages (p<0.04), low hemoglobin (p<0.06) and B symptoms (p<0.01). B-cell lymphopenia was not statistically correlated with morphology (subtype, amount of tumor cells and necrosis). Remarkably, B-lymphocytic counts were significantly higher in patients with in situ EBV (<0.05).Only a B lymphopenia with low IgG level suggesting DICV was detected. We extended the analysis to all the 395 patients included in the protocol EURONET, so we identified 4 patients with CVID. These cases will be further explored by molecular analyses. In parallel, the specific T-cells response against EBV was studied by flow cytometry in 15 patients and ELISPOT assay in 9 patients with HL. Flow cytometry , suggested a decrease in production of IL-2 by CD4 T cells in patients with high EBV viral load in response to EBV latent and lytic-cycle peptides and autologous lymphoblatoid cells lines compared to controls or patients with LH-EBV-. The ELISPOT-IFNγ assay was used to determine the frequency of T cells that produced IFNγ in response to peptides. One patient demonstrated inappropriate EBV-specific T-cell IFNγ production (<10 IFNγ secreted T cells and >1,000 EBV copies per 250000 PBMCs). These cases will be further explored by molecular analyses.Our findings confirm the known epidemiological data of HL now mainly associated to NS subtype in children and adolescents and EBV status in HL at this age. We show that peripheral B cell lymphopenia in paediatric and adolescent HL patients is frequent and associated with poor prognosis factors. We confirm the association between CVID and HL