Browsing by Author "Grau-Rivera, Oriol"

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  • Amyloid beta, tau, synaptic, neurodegeneration, and glial biomarkers in the preclinical stage of the Alzheimer's continuum
    Milà Alomà, Marta; Salvadó, Gemma; Gispert López, Juan Domingo; Vilor Tejedor, Natàlia, 1988-; Grau-Rivera, Oriol; Sala Vila, Aleix; Sánchez Benavides, Gonzalo; Arenaza Urquijo, Eider M.; Crous-Bou, Marta; González de Echávarri, José Maria; Minguillón, Carolina; Fauria, Karine; Simon, Maryline; Kollmorgen, Gwendlyn; Zetterberg, Henrik; Blennow, Kaj; Suárez-Calvet, Marc; Molinuevo, José Luis; ALFA Study (Wiley, 2020)
    Introduction: The biological pathways involved in the preclinical stage of the Alzheimer's continuum are not well understood. Methods: We used NeuroToolKit and Elecsys® immunoassays to measure cerebrospinal fluid (CSF) ...
  • Amyloid-β positive individuals with subjective cognitive decline present increased CSF neurofilament light levels that relate to lower hippocampal volume
    Sánchez Benavides, Gonzalo; Suárez-Calvet, Marc; Milà Alomà, Marta; Arenaza Urquijo, Eider M.; Grau-Rivera, Oriol; Operto, Grégory; Domingo Gispert, Juan; Vilor Tejedor, Natàlia, 1988-; Sala Vila, Aleix; Crous-Bou, Marta; González de Echávarri, José Maria; Minguillón, Carolina; Fauria, Karine; Simon, Maryline; Kollmorgen, Gwendlyn; Zetterberg, Henrik; Blennow, Kaj; Molinuevo, José Luis; ALFA Study (Elsevier, 2021)
    Neurofilament light chain (NfL) is an axonal protein that when measured in cerebrospinal fluid (CSF) serves as a biomarker of neurodegeneration. We aimed at investigating the association among CSF NfL, presence of Subjective ...
  • Association between insomnia and cognitive performance, gray matter volume, and white matter microstructure in cognitively unimpaired adults
    Grau-Rivera, Oriol; Operto, Grégory; Falcón, Carles; Sánchez Benavides, Gonzalo; Cacciaglia, Raffaele; Brugulat Serrat, Anna, 1986-; Gramunt Fombuena, Nina; Salvadó, Gemma; Suárez-Calvet, Marc; Minguillón, Carolina; Iranzo, Alex; Gispert López, Juan Domingo; Molinuevo, José Luis; ALFA Study (BioMed Central, 2020)
    Background: Mounting evidence links poor sleep quality with a higher risk of late-life dementia. However, the structural and cognitive correlates of insomnia are still not well understood. The study aims were to characterize ...
  • Association of weight change with cerebrospinal fluid biomarkers and amyloid positron emission tomography in preclinical Alzheimer's disease
    Grau-Rivera, Oriol; Navalpotro Gómez, Irene; Sánchez Benavides, Gonzalo; Suárez-Calvet, Marc; Milà Alomà, Marta; Arenaza Urquijo, Eider M.; Salvadó, Gemma; Sala Vila, Aleix; Shekari, Mahnaz; González de Echávarri, José Maria; Minguillón, Carolina; Niñerola-Baizán, Aida; Perissinotti, Andrés; Simon, Maryline; Kollmorgen, Gwendlyn; Zetterberg, Henrik; Blennow, Kaj; Gispert López, Juan Domingo; Molinuevo, José Luis; ALFA Study (BioMed Central, 2021)
    Background: Recognizing clinical manifestations heralding the development of Alzheimer's disease (AD)-related cognitive impairment could improve the identification of individuals at higher risk of AD who may benefit from ...
  • Associations between air pollution and biomarkers of Alzheimer's disease in cognitively unimpaired individuals
    Alemany, Silvia; Vilor Tejedor, Natàlia, 1988-; Milà Alomà, Marta; Suárez-Calvet, Marc; Salvadó, Gemma; Arenaza Urquijo, Eider M.; Sánchez Benavides, Gonzalo; Grau-Rivera, Oriol; Minguillón, Carolina; Fauria, Karine; Domingo Gispert, Juan; Gascon Merlos, Mireia, 1984-; Nieuwenhuijsen, Mark J.; Sunyer Deu, Jordi; ALFA Study (Elsevier, 2021)
    Background: Air quality contributes to incidence of Alzheimer's disease (AD) although the underlying neurobiological mechanisms are unclear. This study was aimed to examine the association between air pollution and ...
  • Centiloid cut-off values for optimal agreement between PET and CSF core AD biomarkers
    Salvadó, Gemma; Molinuevo, José Luis; Brugulat Serrat, Anna, 1986-; Falcón, Carles; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Pavía Segura, Javier; Niñerola-Baizán, Aida; Perissinotti, Andrés; Lomeña, Francisco; Minguillón, Carolina; Fauria, Karine; Zetterberg, Henrik; Blennow, Kaj; Gispert López, Juan Domingo; Alzheimer’s Disease Neuroimaging Initiative (BioMed Central, 2019)
    Background: The Centiloid scale has been developed to standardize measurements of amyloid PET imaging. Reference cut-off values of this continuous measurement enable the consistent operationalization of decision-making for ...
  • Clinical reporting following the quantification of cerebrospinal fluid biomarkers in Alzheimer's disease: an international overview
    Delaby, Constance; Grau-Rivera, Oriol; Puig-Pijoan, Albert; Suárez-Calvet, Marc; Lehmann, Sylvain (Wiley, 2021)
    Introduction: the current practice of quantifying cerebrospinal fluid (CSF) biomarkers as an aid in the diagnosis of Alzheimer's disease (AD) varies from center to center. For a same biochemical profile, interpretation and ...
  • Cognitively unimpaired individuals with a low burden of Aβ pathology have a distinct CSF biomarker profile
    Milà Alomà, Marta; Shekari, Mahnaz; Salvadó, Gemma; Gispert López, Juan Domingo; Arenaza Urquijo, Eider M.; Operto, Grégory; Falcón, Carles; Vilor Tejedor, Natàlia, 1988-; Grau-Rivera, Oriol; Sala Vila, Aleix; Sánchez Benavides, Gonzalo; González de Echávarri, José Maria; Minguillón, Carolina; Suárez-Calvet, Marc; Molinuevo, José Luis; ALFA Study (BioMed Central, 2021)
    Background: Understanding the changes that occur in the transitional stage between absent and overt amyloid-β (Aβ) pathology within the Alzheimer's continuum is crucial to develop therapeutic and preventive strategies. The ...
  • Cross-sectional and longitudinal association of sleep and Alzheimer biomarkers in cognitively unimpaired adults
    Blackman, Jonathan; Stankeviciute, Laura; Arenaza Urquijo, Eider M.; Suárez-Calvet, Marc; Sánchez Benavides, Gonzalo; Vilor Tejedor, Natàlia, 1988-; Iranzo, Alejandro; Molinuevo, José Luis; Gispert López, Juan Domingo; Coulthard, Elizabeth; Grau-Rivera, Oriol; European Prevention of Alzheimer’s Disease (EPAD) Consortium (Oxford University Press, 2022)
    Sleep abnormalities are prevalent in Alzheimer's disease, with sleep quality already impaired at its preclinical stage. Epidemiological and experimental data point to sleep abnormalities contributing to the risk of Alzheimer's ...
  • CSF glial biomarkers YKL40 and sTREM2 are associated with longitudinal volume and diffusivity changes in cognitively unimpaired individuals
    Falcón, Carles; Monté-Rubio, Gemma C.; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Sánchez Valle, Raquel; Rami, Lorena; Bosch, Beatriz; Haass, Christian; Gispert López, Juan Domingo; Molinuevo, José Luis (Elsevier, 2019)
    Cerebrospinal fluid (CSF) YKL40 and sTREM2 are astroglial and microglial activity biomarkers, respectively. We assessed whether CSF YKL40 and sTREM2 baseline levels are associated with longitudinal brain volume and diffusivity ...
  • CSF synaptic biomarkers in the preclinical stage of Alzheimer disease and their association with MRI and PET: a cross-sectional study
    Milà Alomà, Marta; Brinkmalm, Ann; Ashton, Nicholas J.; Kvartsberg, Hlin; Shekari, Mahnaz; Operto, Grégory; Salvadó, Gemma; Falcon, Carles; Domingo Gispert, Juan; Vilor Tejedor, Natàlia, 1988-; Arenaza Urquijo, Eider M.; Grau-Rivera, Oriol; Sala Vila, Aleix; Sanchez-Benavides, Gonzalo; González de Echávarri, José Maria; Minguillón, Carolina; Fauria, Karine; Niñerola-Baizán, Aida; Perissinotti, Andrés; Kollmorgen, Gwendlyn; Suridjan, Ivonne; Zetterberg, Henrik; Molinuevo, José Luis; Blennow, Kaj; Suárez-Calvet, Marc; ALFA Study (Lippincott Williams & Wilkins, 2021)
    Background and objectives: To determine whether CSF synaptic biomarkers are altered in the early preclinical stage of the Alzheimer continuum and associated with Alzheimer disease (AD) risk factors, primary pathology, and ...
  • Description of a European memory clinic cohort undergoing amyloid-PET: the AMYPAD diagnostic and patient management study
    Altomare, Daniele; Grau-Rivera, Oriol; Gispert López, Juan Domingo; Minguillón, Carolina; Frisoni, Giovanni B.; AMYPAD Consortium (Wiley, 2022)
    Introduction: AMYPAD Diagnostic and Patient Management Study (DPMS) aims to investigate the clinical utility and cost-effectiveness of amyloid-PET in Europe. Here we present participants' baseline features and discuss the ...
  • DHA intake relates to better cerebrovascular and neurodegeneration neuroimaging phenotypes in middle-aged adults at increased genetic risk of Alzheimer disease
    Sala Vila, Aleix; Arenaza Urquijo, Eider M.; Sánchez Benavides, Gonzalo; Suárez-Calvet, Marc; Milà Alomà, Marta; Grau-Rivera, Oriol; González de Echávarri, José Maria; Crous-Bou, Marta; Minguillón, Carolina; Fauria, Karine; Operto, Grégory; Falcón, Carles; Salvadó, Gemma; Cacciaglia, Raffaele; Ingala, Silvia; Barkhof, Frederik; Schröder, Helmut, 1958-; Scarmeas, Nikolaos; Gispert López, Juan Domingo; Molinuevo, José Luis; ALFA Study (American Society for Nutrition, 2021)
    Background: The number of APOE-ε4 alleles is a major nonmodifiable risk factor for sporadic Alzheimer disease (AD). There is increasing evidence on the benefits of dietary DHA (22:6n-3) before the onset of AD symptoms, ...
  • Effect of BDNF Val66Met on hippocampal subfields volumes and compensatory interaction with APOE-ε4 in middle-age cognitively unimpaired individuals from the ALFA study
    Vilor Tejedor, Natàlia, 1988-; Operto, Grégory; Evans, Tavia E.; Falcón, Carles; Crous-Bou, Marta; Minguillón, Carolina; Cacciaglia, Raffaele; Milà Alomà, Marta; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Garrido Martín, Diego, 1992-; Morán, Sebastián; Esteller, Manel; Adams, Hieab H.; Molinuevo, José Luis; Guigó Serra, Roderic; Gispert López, Juan Domingo; ALFA Study (Springer, 2020)
    Background: Current evidence supports the involvement of brain-derived neurotrophic factor (BDNF) Val66Met polymorphism, and the ε4 allele of APOE gene in hippocampal-dependent functions. Previous studies on the association ...
  • Enhancing the sensitivity of memory tests: reference data for the free and cued selective reminding test and the logical memory task from cognitively healthy subjects with normal alzheimer's disease cerebrospinal fluid biomarker levels
    Brugulat Serrat, Anna, 1986-; Cañas-Martínez, Alba; Canals-Gispert, Lidia; Marne, Paula; Gramunt Fombuena, Nina; Suárez-Calvet, Marc; Arenaza Urquijo, Eider M.; Grau-Rivera, Oriol; González de Echávarri, José Maria; Minguillón, Carolina; Fauria, Karine; Kollmorgen, Gwendlyn; Suridjan, Ivonne; Zetterberg, Henrik; Blennow, Kaj; Gispert López, Juan Domingo; Molinuevo, José Luis; Sánchez Benavides, Gonzalo; ALFA Study (IOS Press, 2021)
    Background: Cognitive performance of a given individual should be interpreted in the context of reference standards obtained in cognitively healthy populations. Recent evidence has shown that removing asymptomatic individuals ...
  • Episodic memory and executive functions in cognitively healthy individuals display distinct neuroanatomical correlates which are differentially modulated by aging
    Cacciaglia, Raffaele; Molinuevo, José Luis; Sánchez Benavides, Gonzalo; Falcón, Carles; Gramunt Fombuena, Nina; Brugulat Serrat, Anna, 1986-; Grau-Rivera, Oriol; Gispert López, Juan Domingo; ALFA Study (Wiley, 2018)
    The neuroanatomical bases of episodic memory (EM) and executive functions (EFs) have been widely addressed in patients with brain damage and in individuals with neurologic disorders. These studies reported that larger brain ...
  • Exploring cognitive and biological correlates of sleep quality and their potential links with Alzheimer's disease (ALFASleep project). Protocol for an observational study
    Fauria, Karine; Minguillón, Carolina; Sánchez Benavides, Gonzalo; Arenaza Urquijo, Eider M.; Suárez-Calvet, Marc; Domingo Gispert, Juan; Grau-Rivera, Oriol (BMJ Publishing Group, 2022)
    Introduction: the growing worldwide prevalence of Alzheimer's disease (AD) and the lack of effective treatments pose a dire medical challenge. Sleep disruption is also prevalent in the ageing population and is increasingly ...
  • Novel tau biomarkers phosphorylated at T181, T217 or T231 rise in the initial stages of the preclinical Alzheimer's continuum when only subtle changes in Aβ pathology are detected
    Suárez-Calvet, Marc; Milà Alomà, Marta; Gispert López, Juan Domingo; Salvadó, Gemma; Minguillón, Carolina; Shekari, Mahnaz; Grau-Rivera, Oriol; Arenaza Urquijo, Eider M.; Sala Vila, Aleix; González de Echávarri, José Maria; Molinuevo, José Luis; ALFA Study (Wiley, 2020)
    In Alzheimer's disease (AD), tau phosphorylation in the brain and its subsequent release into cerebrospinal fluid (CSF) and blood is a dynamic process that changes during disease evolution. The main aim of our study was ...
  • Patterns of white matter hyperintensities associated with cognition in middle-aged cognitively healthy individuals
    Brugulat Serrat, Anna, 1986-; Salvadó, Gemma; Sudre, Carole H.; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Falcón, Carles; Sánchez Benavides, Gonzalo; Gramunt Fombuena, Nina; Fauria, Karine; Cardoso, M. Jorge; Barkhof, Frederik; Molinuevo, José Luis; Gispert López, Juan Domingo; ALFA Study (Springer, 2019)
    White matter hyperintensities (WMH) are commonly detected in the brain of elderly individuals and have been associated with a negative impact on multiple cognitive domains. We aim to investigate the impact of global and ...
  • Perivascular spaces are associated with tau pathophysiology and synaptic dysfunction in early Alzheimer's continuum
    Vilor Tejedor, Natàlia, 1988-; Ciampa, Iacopo; Operto, Grégory; Falcón, Carles; Suárez-Calvet, Marc; Crous-Bou, Marta; Shekari, Mahnaz; Arenaza Urquijo, Eider M.; Milà Alomà, Marta; Grau-Rivera, Oriol; Minguillón, Carolina; Kollmorgen, Gwendlyn; Zetterberg, Henrik; Blennow, Kaj; Guigó Serra, Roderic; Molinuevo, José Luis; Gispert López, Juan Domingo; ALFA Study (BioMed Central, 2021)
    Background: Perivascular spaces (PVS) have an important role in the elimination of metabolic waste from the brain. It has been hypothesized that the enlargement of PVS (ePVS) could be affected by pathophysiological mechanisms ...