Skip to main content
Aller à la page d’accueil de la Commission européenne (s’ouvre dans une nouvelle fenêtre)
français fr
CORDIS - Résultats de la recherche de l’UE
CORDIS
Contenu archivé le 2024-04-30

Chronic microvascular disease in the brain and mechanisms of age related functional impairments

Objectif

Objectives:
The project would test the following hypotheses concerning the mechanisms leading to deve!opment of leukoaraiosis:
1. Leukoaraiosis results from diffuse decreases in subcortical capillary density that lead to chronic subcortical ischaemia.
2. Axonal damage or loss is a major cause of the chronic functional impairments associated with leukoaraiosis
3. Microvascular disease leading to leukoaraiosis is associated both with altered coupling of local haemodynamic responses to neuronal activation and with altered functional connectivities between cortical networks activated during cognitive tasks.

Chronic microvascular disease of the brain is a major cause of motor impairment and dementia with aging. Early diagnosis and treatment have been limited by the lack of reliablenon-invasive markers of disease. Although widespread periventricular white matter changes described as leukoaraiosis are characteristic of the MRI brainscans of affected individuals, the significance of these changes is uncertain, as they also can be found with apparently healthy aging. Such variable severity of clinical deficits associated with similar appearances by conventional imaging must reflect considerable pathological heterogeneity underlying the changes of leukoaraiosis. This proposal would link expertise in four European research centres for the coordinated application of positron emission tomooraphy (PET), magnetic resonance imaging (MRI) and spectroscopy (MRS), and functional magnetic resonance imaging (FMRI) for better characterisation of the pathophysiology of aging-related chronic microvascular disease of the brain. The healthy aging patients with leukoaraiosis with or without dementia and patients with chronic hypertension who are at risk of developing leukoaraisosis would be studied. Correlations would be made between neuroimaging measures and clinically-relevant functional impairments.

The project would test the following hypotheses concerning the mechanisms leading to development of leukoaraosis:
1. Leukoaraiosis results from diffuse decreases in subcortical capillary density that lead to chronic subcortical ischaemia;
2. Axonal damage or loss is a major cause of the chronic functional impairments associated with leukoaraiosis;
3. Microvascular disease leading to leukoaraiosis is associated both with altered coupling of local haemodvnamic responses to neuronal activation and with altered functional connectivity between cortical networks activated during cognitive tasks.

In the course of our work we would assess whether PET or advanced MR techniques could be used as sensitive and specific surrogate markers for monitoring the progression of this disease process. Availability of such markers would provide a powerful tool for enhancing the efficiency of drug development studies and for assessment of the risks of disability from this disease. By working together, the project partners would be able to integrate clinical data and technical expertise to an extent not possible in any single European centre. The partnership would enhance research training, particularly in the areas of neuroimaging and image analysis. Positive results from the work would encourage the dissemination of sophisticated new brain imaging technologies currently being developed and marketed by major European industries.05 05

Champ scientifique (EuroSciVoc)

CORDIS classe les projets avec EuroSciVoc, une taxonomie multilingue des domaines scientifiques, grâce à un processus semi-automatique basé sur des techniques TLN. Voir: Le vocabulaire scientifique européen.

Vous devez vous identifier ou vous inscrire pour utiliser cette fonction

Programme(s)

Programmes de financement pluriannuels qui définissent les priorités de l’UE en matière de recherche et d’innovation.

Thème(s)

Les appels à propositions sont divisés en thèmes. Un thème définit un sujet ou un domaine spécifique dans le cadre duquel les candidats peuvent soumettre des propositions. La description d’un thème comprend sa portée spécifique et l’impact attendu du projet financé.

Appel à propositions

Procédure par laquelle les candidats sont invités à soumettre des propositions de projet en vue de bénéficier d’un financement de l’UE.

Données non disponibles

Régime de financement

Régime de financement (ou «type d’action») à l’intérieur d’un programme présentant des caractéristiques communes. Le régime de financement précise le champ d’application de ce qui est financé, le taux de remboursement, les critères d’évaluation spécifiques pour bénéficier du financement et les formes simplifiées de couverture des coûts, telles que les montants forfaitaires.

CSC - Cost-sharing contracts

Coordinateur

The Chancellor, Masters and Scholars of the University of Oxford
Contribution de l’UE
Aucune donnée
Adresse
Woodstock Road
OX2 6HE Oxford
Royaume-Uni

Voir sur la carte

Coût total

Les coûts totaux encourus par l’organisation concernée pour participer au projet, y compris les coûts directs et indirects. Ce montant est un sous-ensemble du budget global du projet.

Aucune donnée

Participants (3)

Mon livret 0 0