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Translating network hyperexcitability in preclinical familial Alzheimer's disease

Translating network hyperexcitability in preclinical familial Alzheimer's disease - T-REX

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON49729
Enrollment
15
Registered
2020-09-28
Start date
2020-12-01
Completion date
Unknown
Last updated
2024-04-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's Disease Inheritable Dementia

Interventions

None listed

Sponsors

Vrije Universiteit Medisch Centrum
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Potential subjects need to have a dominantly inherited Alzheimer's Disease (DIAD) mutation and must be at least 18 years of age.

Exclusion criteria

Exclusion criteria: Participants who show dementia due to (familial) AD will be excluded from the study. In addition, participants who have for example cardiac pacemakers, ICD's or other intracorporal devices which excessively interfer with MEG-signals may be excluded. Additional contra-indications for MRI scanning (e.g. implanted metals), current or planned pregnancy and subjects with severe claustrophobia cannot participate.

Design outcomes

Primary

MeasureTime frame
Hippocampal and global brain MEG based measures of oscillatory brain activity, represented in total broadband power and E/I balance (from 1/f of the powerspectrum or new method for fE/I, based on DFA and power.

Secondary

MeasureTime frame
MEG-based measures of: - oscillatory activity, represented in (average) peak frequency and relative power of the following frequency bands: theta (4-8 Hz), alpha (8*13 Hz), beta (13-30 Hz), and gamma (30-48Hz). - functional connectivity between target regions in specific frequency bands, expressed as amplitude envelope correlation corrected (AECc) for volume conduction. - functional network measures by the use of graph theoretical measures, including degree, modularity, path length, betweenness centrality. Structural MRI: - Structural connectome - Grey & White matter volumes - White matter integrity & microbleeds Neuropsychological performance - Scores from different tests will be used as indices of cognitive performance on different domains - Score of the working memory task during the MEG recording will be used as indicator for working memory

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)