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    A metabolic perspective of late onset Alzheimer's disease

    Review
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    item_2-s2.0-85065390875.pdf (5.107Kb)
    Date
    2019
    DOI
    10.1016/j.phrs.2019.104255

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    Author
    Ettcheto M.
    Cano A.
    Busquets O.
    Manzine P.R.
    Sánchez-López E.
    Castro-Torres R.D.
    Beas-Zarate C.
    Verdaguer E.
    García M.L.
    Olloquequi J.
    Auladell C.
    Folch J.
    Camins A.
    Abstract
    After decades of research, the molecular neuropathology of Alzheimer's disease (AD)is still one of the hot topics in biomedical sciences. Some studies suggest that soluble amyloid β (Aβ)oligomers act as causative agents in the development of AD and could be initiators of its complex neurodegenerative cascade. On the other hand, there is also evidence pointing to Aβ oligomers as mere aggravators, with an arguable role in the origin of the disease. In this line of research, the relative contribution of soluble Aβ oligomers to neuronal damage associated with metabolic disorders such as Type 2 Diabetes Mellitus (T2DM)and obesity is being actively investigated. Some authors have proposed the endoplasmic reticulum (ER)stress and the induction of the unfolded protein response (UPR)as important mechanisms leading to an increase in Aβ production and the activation of neuroinflammatory processes. Following this line of thought, these mechanisms could also cause cognitive impairment. The present review summarizes the current understanding on the neuropathological role of Aβ associated with metabolic alterations induced by an obesogenic high fat diet (HFD)intake. It is believed that the combination of these two elements has a synergic effect, leading to the impairement of ER and mitochondrial functions, glial reactivity status alteration and inhibition of insulin receptor (IR)signalling. All these metabolic alterations would favour neuronal malfunction and, eventually, neuronal death by apoptosis, hence causing cognitive impairment and laying the foundations for late-onset AD (LOAD). Moreover, since drugs enhancing the activation of cerebral insulin pathway can constitute a suitable strategy for the prevention of AD, we also discuss the scope of therapeutic approaches such as intranasal administration of insulin in clinical trials with AD patients. © 2019 Elsevier Ltd
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    LA UNIVERSIDAD
    • Aseguramiento de Calidad
    • Internacional
    • Vinculación con el Medio
    • Más Transparencia
    • Acreditación
    • Reglamentos e instructivos
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    • Administración y Negocios
    • Arquitectura y Construcción
    • Ciencias de la Salud
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    • Derecho
    • Educación
    • Ingeniería
    INVESTIGACIÓN
    • Estructura
    • Comités de Ética
    • Institutos de Investigación
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    POSTGRADOS
    • Postgrados
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