Browsing by Author "Kollmorgen, Gwendlyn"

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  • Age, sex and APOE-ε4 modify the balance between soluble and fibrillar β-amyloid in non-demented individuals: topographical patterns across two independent cohorts
    Cacciaglia, Raffaele; Salvadó, Gemma; Molinuevo, José Luis; Shekari, Mahnaz; Falcón, Carles; Operto, Grégory; Suárez-Calvet, Marc; Milà Alomà, Marta; Sala, Arianna; Rodriguez-Vieitez, Elena; Kollmorgen, Gwendlyn; Suridjan, Ivonne; Blennow, Kaj; Zetterberg, Henrik; Gispert López, Juan Domingo; Alzheimer’s Disease Neuroimaging Initiative; ALFA Study (Nature Research, 2022)
    Amyloid (Aβ) pathology is the earliest detectable pathophysiological event along the Alzheimer's continuum, which can be measured both in the cerebrospinal fluid (CSF) and by Positron Emission Tomography (PET). Yet, these ...
  • 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 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 ...
  • Astrocyte biomarkers GFAP and YKL-40 mediate early Alzheimer's disease progression
    Pelkmans, Wiesje; Shekari, Mahnaz; Brugulat Serrat, Anna, 1986-; Sánchez Benavides, Gonzalo; Minguillón, Carolina; Fauria, Karine; Molinuevo, José Luis; Grau-Rivera, Oriol; González Escalante, Armand; Kollmorgen, Gwendlyn; Carboni, Margherita; Ashton, Nicholas J.; Zetterberg, Henrik; Blennow, Kaj; Suárez-Calvet, Marc; Gispert López, Juan Domingo; ALFA Study (Wiley, 2024)
    Introduction: We studied how biomarkers of reactive astrogliosis mediate the pathogenic cascade in the earliest Alzheimer's disease (AD) stages. Methods: We performed path analysis on data from 384 cognitively unimpaired ...
  • Cerebral amyloid-β load is associated with neurodegeneration and gliosis: Mediation by p-tau and interactions with risk factors early in the Alzheimer's continuum
    Salvadó, Gemma; Milà Alomà, Marta; Shekari, Mahnaz; Minguillón, Carolina; Fauria, Karine; Niñerola-Baizán, Aida; Perissinotti, Andrés; Kollmorgen, Gwendlyn; Buckley, Christopher, 1948-; Farrar, Gill; Zetterberg, Henrik; Blennow, Kaj; Suárez-Calvet, Marc; Molinuevo, José Luis; Gispert López, Juan Domingo; ALFA Study (Wiley, 2021)
    Introduction: The association between cerebral amyloid-β accumulation and downstream CSF biomarkers is not fully understood, particularly in asymptomatic stages. Methods: In 318 cognitively unimpaired participants, we ...
  • CSF glial biomarkers are associated with cognition in individuals at risk of Alzheimer's disease
    Warmenhoven, Noëlle; Sánchez Benavides, Gonzalo; González Escalante, Armand; Milà Alomà, Marta; Shekari, Mahnaz; López Martos, David; Ortiz Romero, Paula, 1994-; Kollmorgen, Gwendlyn; Quijano Rubio, Clara; Minguillón, Carolina; Gispert López, Juan Domingo; Vilor Tejedor, Natàlia, 1988-; Arenaza Urquijo, Eider M.; Palpatzis, Eleni; Ashton, Nicholas J.; Zetterberg, Henrik; Blennow, Kaj; Suárez-Calvet, Marc; Grau-Rivera, Oriol; ALFA Study (Wiley, 2024)
    Introduction: We examined whether baseline glial markers soluble triggering receptor expressed on myeloid cell 2 (sTREM2), chitinase 3-like protein 1 (YKL-40), and glial fibrillary acidic protein (GFAP) in cerebrospinal ...
  • 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 ...
  • 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 ...
  • Identifying clinically useful biomarkers in neurodegenerative disease through a collaborative approach: the NeuroToolKit
    Johnson, Sterling C.; Suárez-Calvet, Marc; Suridjan, Ivonne; Minguillón, Carolina; Gispert López, Juan Domingo; Jonaitis, Erin; Michna, Agatha; Carboni, Margherita; Bittner, Tobias; Rabe, Christina; Kollmorgen, Gwendlyn; Zetterberg, Henrik; Blennow, Kaj (BioMed Central, 2023)
    Background: Alzheimer's disease (AD) is a complex and heterogeneous disease, which requires reliable biomarkers for diagnosis and monitoring disease activity. Preanalytical protocol and technical variability associated ...
  • Lifetime stressful events associated with Alzheimer's Pathologies, neuroinflammation and brain structure in a risk enriched cohort
    Palpatzis, Eleni; Akinci, Muge; Aguilar Dominguez, Pablo; Garcia Prat, Marina; Blennow, Kaj; Zetterberg, Henrik; Carboni, Margherita; Kollmorgen, Gwendlyn; Wild, Norbert; Fauria, Karine; Falcón, Carles; Gispert López, Juan Domingo; Suárez-Calvet, Marc; Grau-Rivera, Oriol; Sánchez Benavides, Gonzalo; Arenaza Urquijo, Eider M.; ALFA Study (Wiley, 2024)
    Objective: Along with the known effects of stress on brain structure and inflammatory processes, increasing evidence suggest a role of chronic stress in the pathogenesis of Alzheimer's disease (AD). We investigated the ...
  • 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 ...
  • Prepandemic alzheimer disease biomarkers and anxious-depressive symptoms during the COVID-19 confinement in cognitively unimpaired adults
    Akinci, Muge; Peña-Gómez, Cleofé; Operto, Grégory; Fuentes-Julian, Sherezade; Deulofeu, Carme; Sánchez Benavides, Gonzalo; Milà Alomà, Marta; Grau-Rivera, Oriol; Gramunt Fombuena, Nina; Navarro i Cuartiellas, Arcadi, 1969-; Minguillón, Carolina; Fauria, Karine; Suridjan, Ivonne; Kollmorgen, Gwendlyn; Bayfield, Anna; Blennow, Kaj; Zetterberg, Henrik; Molinuevo, José Luis; Suárez-Calvet, Marc; Gispert López, Juan Domingo; Arenaza Urquijo, Eider M.; ALFA Study (Lippincott Williams & Wilkins, 2022)
    Background and objectives: Increased anxious-depressive symptomatology is observed in the preclinical stage of Alzheimer disease (AD), which may accelerate disease progression. We investigated whether β-amyloid, cortical ...
  • Sex/gender effects of glial reactivity on preclinical Alzheimer's disease pathology
    Vila-Castelar, Clara; Akinci, Muge; Palpatzis, Eleni; Aguilar Dominguez, Pablo; Operto, Grégory; Kollmorgen, Gwendlyn; Quijano Rubio, Clara; Blennow, Kaj; Zetterberg, Henrik; Falcón, Carles; Fauria, Karine; Gispert López, Juan Domingo; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Arenaza Urquijo, Eider M.; ALFA Study (Nature Research, 2024)
    Glial reactivity may contribute to sex/gender differences in Alzheimer's disease (AD) pathophysiology. Here, we investigated the differential effect of cerebrospinal fluid (CSF) glial markers on AD pathology and neurodegeneration ...

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