Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits

Alzheimer's disease (AD) and Type 2 Diabetes Mellitus (T2DM) are two of the most prevalent diseases in the elderly population worldwide. A growing body of epidemiological studies suggest that people with T2DM are at a higher risk of developing AD. Likewise, AD brains are less capable of glucose...

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Main Authors: Shreyasi Chatterjee, Amritpal Mudher
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-06-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fnins.2018.00383/full
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author Shreyasi Chatterjee
Amritpal Mudher
author_facet Shreyasi Chatterjee
Amritpal Mudher
author_sort Shreyasi Chatterjee
collection DOAJ
description Alzheimer's disease (AD) and Type 2 Diabetes Mellitus (T2DM) are two of the most prevalent diseases in the elderly population worldwide. A growing body of epidemiological studies suggest that people with T2DM are at a higher risk of developing AD. Likewise, AD brains are less capable of glucose uptake from the surroundings resembling a condition of brain insulin resistance. Pathologically AD is characterized by extracellular plaques of Aβ and intracellular neurofibrillary tangles of hyperphosphorylated tau. T2DM, on the other hand is a metabolic disorder characterized by hyperglycemia and insulin resistance. In this review we have discussed how Insulin resistance in T2DM directly exacerbates Aβ and tau pathologies and elucidated the pathophysiological traits of synaptic dysfunction, inflammation, and autophagic impairments that are common to both diseases and indirectly impact Aβ and tau functions in the neurons. Elucidation of the underlying pathways that connect these two diseases will be immensely valuable for designing novel drug targets for Alzheimer's disease.
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spelling doaj.art-16007c3daddd47eba921379bd01279602022-12-22T03:57:11ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2018-06-011210.3389/fnins.2018.00383359050Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological TraitsShreyasi ChatterjeeAmritpal MudherAlzheimer's disease (AD) and Type 2 Diabetes Mellitus (T2DM) are two of the most prevalent diseases in the elderly population worldwide. A growing body of epidemiological studies suggest that people with T2DM are at a higher risk of developing AD. Likewise, AD brains are less capable of glucose uptake from the surroundings resembling a condition of brain insulin resistance. Pathologically AD is characterized by extracellular plaques of Aβ and intracellular neurofibrillary tangles of hyperphosphorylated tau. T2DM, on the other hand is a metabolic disorder characterized by hyperglycemia and insulin resistance. In this review we have discussed how Insulin resistance in T2DM directly exacerbates Aβ and tau pathologies and elucidated the pathophysiological traits of synaptic dysfunction, inflammation, and autophagic impairments that are common to both diseases and indirectly impact Aβ and tau functions in the neurons. Elucidation of the underlying pathways that connect these two diseases will be immensely valuable for designing novel drug targets for Alzheimer's disease.https://www.frontiersin.org/article/10.3389/fnins.2018.00383/fullinsulin resistancetau proteinsabeta oligomerssynaptic dysfunctionautophagyinflammation
spellingShingle Shreyasi Chatterjee
Amritpal Mudher
Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits
Frontiers in Neuroscience
insulin resistance
tau proteins
abeta oligomers
synaptic dysfunction
autophagy
inflammation
title Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits
title_full Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits
title_fullStr Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits
title_full_unstemmed Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits
title_short Alzheimer's Disease and Type 2 Diabetes: A Critical Assessment of the Shared Pathological Traits
title_sort alzheimer s disease and type 2 diabetes a critical assessment of the shared pathological traits
topic insulin resistance
tau proteins
abeta oligomers
synaptic dysfunction
autophagy
inflammation
url https://www.frontiersin.org/article/10.3389/fnins.2018.00383/full
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