RT Journal Article
T1 The effects of white matter hyperintensities on MEG power spectra in population with mild cognitive impairment
A1 Torres Simón, Lucía
A1 Cuesta Prieto, Pablo
A1 del Cerro León, Alberto
A1 Chino, Brenda
A1 Orozco, Lucia H.
A1 Marsh, Elisabeth B.
A1 Gil Gregorio, Pedro
A1 Maestu Unturbe, Fernando
AB Cerebrovascular disease is responsible for up to 20% of cases of dementia worldwide, but also it is a major comorbid contributor to the progression of other neurodegenerative diseases, like Alzheimer’s disease. White matter hyperintensities (WMH) are the most prevalent imaging marker in cerebrovascular disease. The presence and progression of WMH in the brain have been associated with general cognitive impairment and the risk to develop all types of dementia. The aim of this piece of work is the assessment of brain functional differences in an MCI population based on the WMH volume. One-hundred and twenty-nine individuals with mild cognitive impairment (MCI) underwent a neuropsychological evaluation, MRI assessment (T1 and Flair), and MEG recordings (5 min of eyes closed resting state). Those participants were further classified into vascular MCI (vMCI; n = 61, mean age 75 ± 4 years, 35 females) or non-vascular MCI (nvMCI; n = 56, mean age 72 ± 5 years, 36 females) according to their WMH total volume, assessed with an automatic detection toolbox, LST (SPM12). We used a completely data-driven approach to evaluate the differences in the power spectra between the groups. Interestingly, three clusters emerged: One cluster with widespread larger theta power and two clusters located in both temporal regions with smaller beta power for vMCI compared to nvMCI. Those power signatures were also associated with cognitive performance and hippocampal volume. Early identification and classification of dementia pathogenesis is a crucially important goal for the search for more effective management approaches. These findings could help to understand and try to palliate the contribution of WMH to particular symptoms in mixed dementia progress.
PB Frontiers
SN 1662-5161
YR 2023
FD 2023-02-15
LK https://hdl.handle.net/20.500.14352/100909
UL https://hdl.handle.net/20.500.14352/100909
LA eng
NO Torres-Simon L, Cuesta P, del Cerro-Leon A, Chino B, Orozco LH, Marsh EB, Gil P and Maestu F (2023) The effects of white matter hyperintensities on MEG power spectra in population with mild cognitive impairment. Front. Hum. Neurosci. 17:1068216. doi: 10.3389/fnhum.2023.1068216
DS Docta Complutense
RD 27 sept 2024