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Effects of sleep deprivation and adrenergic inhibition on glymphatic flow in humans

Objetivo

Sufficient sleep is a key determinant of health, and sleep loss is associated with severe health risks. Nevertheless, the reason for why we sleep is not yet understood. Recently, a molecular function of sleep was described in rodents. The ‘glymphatic system’ (GS) is a sleep dependent macroscopic pathway of the brain that facilitates the removal of metabolites, including amyloid-beta. This project will for the first time reveal a sleep-driven human GS and show whether glymphatic flow (GF) can be linked to cognitive impairments associated with sleep loss. Secondly, I will promote GF with the adrenergic antagonist Carvedilol. This manipulation of glymphatic clearance may define new approaches for treating sleep-disorders and Alzheimer’s disease, or reduce or delay our need for sleep.
I will investigate the human GS by applying state of the art, 5-10 Hz, ultra-fast MR sequences across sleep and wakefulness. Preliminary data show that these sequences enable the detection of cardiac, respiration, and slow pulsations, previously considered noise in fMRI imaging and distorted by aliasing effects. These pulsations are now believed to drive GF. The project will be a major step forward for sleep and neuroscience research, but also provide a key step in my career, demonstrating independent work and allowing me to learn advanced data-analysis skills and develop a novel imaging method, which I can apply in future studies. The chosen host institution is perfectly situated for the project, as they have established expertise and an exceptional skill-set in analyzing novel neuroimaging data including ultra-fast MRI. Secondly, my host provides unique infrastructure that allows for completion of the study, with key personnel in neuropsychology and data-analysis, as well as the world leading experts in glymphatic mechanisms. The project forms a foundation for a more general approach to integrate imaging of sleep-regulation and glymphatic mechanisms with patient or trait specific data.

Ámbito científico (EuroSciVoc)

Palabras clave

Programa(s)

Tema(s)

Régimen de financiación

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Convocatoria de propuestas

(se abrirá en una nueva ventana) H2020-MSCA-IF-2017

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Coordinador

REGION HOVEDSTADEN
Aportación neta de la UEn
€ 200 194,80
Dirección
KONGENS VAENGE 2
3400 Hillerod
Dinamarca
Región
Danmark Hovedstaden Københavns omegn
Tipo de actividad
Public bodies (excluding Research Organisations and Secondary or Higher Education Establishments)
Enlaces
Coste total
€ 200 194,80