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• W4386019279 abstract "AbstractAmyloid-β peptide, the predominant proteinaceous component of senile plaques, is responsible for the incidence of Alzheimer's disease (AD), an age-associated neurodegenerative disorder. Specifically, the amyloid-β(1-42) (Aβ1-42) isoform, known for its high toxicity, is the predominant biomarker for the preliminary diagnosis of AD. The aggregation of the Aβ1-42 peptides can be affected by the components of the cellular medium through changing their structures and molecular interactions. In this study, we investigated the effect of sodium dodecyl sulfate (SDS) at much lower concentrations than the critical micelle concentration (CMC) on Aβ1-42 aggregation. For this purpose, we studied mono-, di-, tri- and tetramers of Aβ1-42 peptide in two different concentrations of SDS molecules (10 and 40 molecules) using a 300 ns molecular dynamics simulation for each system. The distance between the center of mass (COM) of Aβ1-42 peptides confirms that an increase in the number of SDS molecules decreases their aggregation probability due to greater interaction with SDS molecules. Besides, the less compactness parameter reveals the reduced aggregation probability of Aβ1-42 peptides. Based on the energetic FEL landscapes, SDS molecules with the concentration closer to the CMC are an effective inhibitory agent to prevent the formation of Aβ1-42 fibrils. Also, the aggregation direction of the peptide pairs can be predicted by determining the direction of the accumulation-deterrent forces.Communicated by Ramaswamy H. SarmaKeywords: Alzheimer's diseasesodium dodecyl sulfateamyloid betaMD simulationcritical micelle concentration Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThe author(s) reported there is no funding associated with the work featured in this article." @default.
• W4386019279 created "2023-08-22" @default.
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• W4386019279 date "2023-08-20" @default.
• W4386019279 modified "2023-10-09" @default.
• W4386019279 title "Reducing the assemblies of amyloid-beta multimers by sodium dodecyl sulfate surfactant at concentrations lower than critical micelle concentration: molecular dynamics simulation exploration" @default.
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• W4386019279 doi "https://doi.org/10.1080/07391102.2023.2247086" @default.
• W4386019279 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37599504" @default.
• W4386019279 hasPublicationYear "2023" @default.
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