Myriam Barandiaran
Carlos III Health Institute
NeuropsychologyPsychologyCognitionFrontotemporal dementiaDementia
What is this?
Publications 20
BACKGROUND Abnormal cholesterol metabolism changes the neuronal membrane and may promote amyloidogenesis. Oxysterols in cerebrospinal fluid (CSF) are related to Alzheimer's disease (AD) biomarkers in mild cognitive impairment and dementia. Cholesterol turnover is important for axonal and white matter (WM) microstructure maintenance. OBJECTIVE We aim to demonstrate that the association of oxysterols, AD biomarkers, and WM microstructure occurs early in asymptomatic individuals. METHODS We studied...
#1Katrina M. Moore (UCL Institute of Neurology)H-Index: 1
#2Rhian S. Convery (UCL Institute of Neurology)H-Index: 2
Last. John C. van Swieten (EUR: Erasmus University Rotterdam)H-Index: 53
view all 38 authors...
AbstractImpaired semantic knowledge is a characteristic feature of some forms of frontotemporal dementia (FTD), particularly the sporadic disorder semantic dementia. Less is known about semantic co...
#1Katrina M. Moore (UCL: University College London)H-Index: 1
#2Jennifer M. Nicholas (Lond: University of London)H-Index: 20
Last. Daniel H. GeschwindH-Index: 129
view all 171 authors...
Summary Background Frontotemporal dementia is a heterogenous neurodegenerative disorder, with about a third of cases being genetic. Most of this genetic component is accounted for by mutations in GRN, MAPT, and C9orf72. In this study, we aimed to complement previous phenotypic studies by doing an international study of age at symptom onset, age at death, and disease duration in individuals with mutations in GRN, MAPT, and C9orf72. Methods In this international, retrospective cohort study, we col...
5 CitationsSource
#1Timothy Rittman (University of Cambridge)H-Index: 19
#2Robin J Borchert (University of Cambridge)H-Index: 4
Last. Miren ZulaicaH-Index: 2
view all 125 authors...
The presymptomatic phase of neurodegenerative diseases are characterized by structural brain changes without significant clinical features. We set out to investigate the contribution of functional network resilience to preserved cognition in presymptomatic genetic frontotemporal dementia. We studied 172 people from families carrying genetic abnormalities in C9orf72, MAPT, or PGRN. Networks were extracted from functional MRI data and assessed using graph theoretical analysis. We found that despit...
3 CitationsSource
#1Enrico Premi (University of Brescia)H-Index: 18
#2Vince D. Calhoun (UNM: University of New Mexico)H-Index: 93
Last. Miren ZulaicaH-Index: 2
view all 133 authors...
Abstract Frontotemporal Dementia (FTD) is preceded by a long period of subtle brain changes, occurring in the absence of overt cognitive symptoms, that need to be still fully characterized. Dynamic network analysis based on resting-state magnetic resonance imaging (rs-fMRI) is a potentially powerful tool for the study of preclinical FTD. In the present study, we employed a "chronnectome" approach (recurring, time-varying patterns of connectivity) to evaluate measures of dynamic connectivity in 4...
2 CitationsSource
OBJECTIVE: The assessment of individuals from families affected by familial frontotemporal dementia (FTD) allows the evaluation of preclinical or pre-diagnosis disease markers. The current work aims to investigate the existence of a cognitive phase in GRN mutation carriers before overt clinical symptoms begin. METHODS: We performed a longitudinal neuropsychological analysis (three assessments in 4 years) in a group of presymptomatic c.709-1G>A progranulin (GRN) (n=15) mutation carriers and non-c...
Many factors may converge in healthy ageing in the oldest old, but their association and predictive power on healthy o functionally impaired ageing has yet to be demonstrated. By detecting healthy ageing and in turn, poor ageing, we could take action to prevent chronic diseases associated with age. We conducted a pilot study comparing results of a set of markers (peripheral blood mononuclear cell telomere length or PBMC, circulating Aβ peptides, anti-Aβ antibodies, and ApoE status) previously as...
2 CitationsSource
#1Fermin MorenoH-Index: 13
Last. Suzee E. LeeH-Index: 18
view all 13 authors...
BACKGROUND: The co-occurrence of the c.709-1G>A GRN mutation and the p.A152T MAPT variant has been identified in 18 Basque families affected by frontotemporal dementia (FTD). We aimed to investigate the influence of the p.A152T MAPT variant on the clinical and neuropathological features of these Basque GRN families. METHODS AND FINDINGS: We compared clinical characteristics of 14 patients who carried the c.709-1G>A GRN mutation (GRN+/A152T-) with 21 patients who carried both the c.709-1G>A GRN m...
1 CitationsSource
#1Pau PastorH-Index: 38
#2Fermin MorenoH-Index: 13
Last. Pascual Sánchez-JuanH-Index: 29
view all 38 authors...
Spanish Ministry of Science and Innovation SAF 2006-10126 (2006–2009) and SAF2010-22329-C02-01 (2011–2013) to P.P and by the UTE project FIMA to P.P. Grants from the Ministry of Science (SAF2010-15558) and CIBERNED. Agust´in Ruiz is supported by grant PI13/02434 (Accion Estrategica en Salud. Instituto de Salud Carlos III. Ministerio de Economia y Competitividad, Spain). Grant: Consolider (CSD2010-00045).
15 CitationsSource