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Amyloid beta-protein (Aβ) is the major constituent of amyloid fibrils composing β-amyloid plaques and cerebrovascular amyloid in Alzheimer's disease (AD). We studied the effect of metal cations on preformed fibrils of synthetic Aβ by Thioflavin T (ThT) fluorescence spectroscopy and electronmicroscopy (EM) in negative staining. The amount of cross beta-pleated sheet structure of Aβ 1–40 fibrils was...
In vitro aggregation and fibrillization of synthetic amyloid beta-protein Aβ 1–40 was assessed in the conditioned media from rhabdomyosarcoma (CRL 1598, HTB 82, HTB 153, CCL 136), adenocarcinoma (CCL 218), neuroblastoma (SY5Y), and COS cells cultured in the absence and presence of 10% heat-inactivated fetal bovine serum (FBS). The aggregation and formation of cross β-pleated sheet structures in Aβ...
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