The 25-35 fragment of the amyloid β (Aβ) peptide is a naturally occurring proteolytic by-product of its larger parent molecule that retains the amyloid characteristics and toxicity of the full length parent molecule. Aggregation of this peptide occurs rapidly in aqueous solutions and thus characterization of its folding process is very difficult. In the present study, early stages of Aβ(25–35) ...

Evidence shows that an abnormal deposition of amyloid beta-peptide25-35 (Aβ25-35) was the primary cause of the pathogenesis of Alzheimer's disease (AD). And the elimination of Aβ25-35 is considered an important target for the treatment of AD. Triptolide (TP), isolated from Tripterygium wilfordii Hook.f. (TWHF), has been shown to possess a broad spectrum of biological profiles, including neurotr...

The 25-35 fragment of the amyloid β(Aβ) peptide is a naturally occurring proteolytic by-product of its larger parent molecule that retains the amyloid characteristics and toxicity of the full length parent molecule. Aggregation of this peptide occurs rapidly in aqueous solutions and thus characterization of its folding process is very difficult. In the present study, early stages of Aβ(25-35) f...

The balance between protein folding and misfolding is a crucial determinant of amyloid assembly. Transient intermediates that are sparsely populated during protein folding have been identified as key players in amyloid aggregation. However, due to their ephemeral nature, structural characterization of these species remains challenging. Here, using the power of nonuniformly sampled NMR methods w...

Alzheimer's disease (AD) is a disorder with multiple pathophysiological causes, destructive outcomes, and no available definitive cure. Pelargonidin (Pel), an anthocyanin derivative, is an estrogen receptor agonist with little estrogen side effects. This study was designed to assess Pel memory enhancing effects on the a rat Amyloid Beta25-35 (Aβ) intrahippocampal microinjections model of AD in ...

....................................................................................................................................1 1. Computational studies of protein folding and aggregation ..........................................3 1.1 Overview ....................................................................................................................3 1.2 Protein structure..........

In recent years the issues of protein stability, folding and aggregation have become central in several pathological conditions and in particular in amyloid diseases. Here, we review the recent developments on the molecular mechanisms of amyloid formation by transthyretin (TTR), in particular, in what concerns to protein conformational stability, protein folding and

alzheimer’s disease (ad) is a disorder with multiple pathophysiological causes, destructive outcomes, and no available definitive cure. pelargonidin (pel), an anthocyanin derivative, is an estrogen receptor agonist with little estrogen side effects. this study was designed to assess pel memory enhancing effects on the a rat amyloid beta 25-35 (aβ) intrahippocampal microinjections model of ad in...