NeuralCipher Research overview
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BackgroundApolipoprotein E (APOE = gene, ApoE = protein) is a glycoprotein involved in the biological process of lipid transportation and metabolism, contributing to lipid homeostasis. APOE has been extensively studied for its correlation with neurodegenerative diseases, in particular Alzheimer's disease (AD), where the possession of the epsilon 4 (E4) allele is established as a risk factor for developing AD in non-familiar sporadic forms. Recently, evidence suggests a broad involvement of E4 also in other neurological conditions, where it has been shown to be a predictive marker for worse clinical outcomes in Parkinson's disease (PD), brain trauma, and disturbances of consciousness. The mechanisms underlying these associations are complex and involve amyloid-β (Aβ) peptide accumulation and neuroinflammation, although many others have yet to be identified.ObjectivesThe aim of this review is to overview the current knowledge on ApoE as a non-protagonist actor in processes underlying neurodegenerative diseases and its clinical significance in AD, PD, acquired brain trauma, and Disorders of Consciousness (DoC). Ethical implications of genetic testing for APOE variants and information disclosure will also be briefly discussed.
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