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Themed collection Towards understanding and treating Alzheimer’s disease

29 items
Review Article

Biological and pharmacological activities of amaryllidaceae alkaloids

This review discusses the recent developments on biological and pharmacological activities of amaryllidaceae alkaloids with IC50 or EC50 values since 2005, supporting the potential therapeutic possibilities for the use of these compounds.

Graphical abstract: Biological and pharmacological activities of amaryllidaceae alkaloids
Review Article

Drug-like chelating agents: a potential lead for Alzheimer's disease

This review systematically discusses the drug-like chelating agents for AD as well as their potential applications in the future.

Graphical abstract: Drug-like chelating agents: a potential lead for Alzheimer's disease
Review Article

Biologically active isoquinoline alkaloids with drug-like properties from the genus Corydalis

Corydalis plants are rich sources of isoquinoline alkaloids with various biological activities as well as drug-like properties.

Graphical abstract: Biologically active isoquinoline alkaloids with drug-like properties from the genus Corydalis
Review Article

Recent developments in chemistry and biology of curcumin analogues

This review highlights the different chemical modifications done on curcumin, their structure–activity relationship and a comprehensive look at the current clinical status of its analogues.

Graphical abstract: Recent developments in chemistry and biology of curcumin analogues
Communication

High-throughput metabolomics analysis discovers salivary biomarkers for predicting mild cognitive impairment and Alzheimer's disease

Mild cognitive impairment (MCI) confers an increased risk of developing Alzheimer's disease (AD).

Graphical abstract: High-throughput metabolomics analysis discovers salivary biomarkers for predicting mild cognitive impairment and Alzheimer's disease
Communication

Metabolomics-based screening of salivary biomarkers for early diagnosis of Alzheimer's disease

Early diagnosis of Alzheimer's disease (AD) is an attractive strategy to increase the survival rate of patients.

Graphical abstract: Metabolomics-based screening of salivary biomarkers for early diagnosis of Alzheimer's disease
Communication

Self-assembly of Cu(II) with amyloid β19–20 peptide: relevant to Alzheimer's disease

The Aβ19–20 peptide tends to self-assemble into well-ordered tubular structures under physiological conditions, while in the presence of equimolar Cu(II), they assembled into homogeneous microvesicles. The chelator can competitively bind to Cu(II) from the Cu(II)–Aβ19–20 complex, resulting in reforming of the peptide tubular structure.

Graphical abstract: Self-assembly of Cu(ii) with amyloid β19–20 peptide: relevant to Alzheimer's disease
Paper

The role of caffeine as an inhibitor in the aggregation of amyloid forming peptides: a unified molecular dynamics simulation and experimental study

10 : 1 or more caffeine to SwP ratio can prevent the formation of β-sheet conformation.

Graphical abstract: The role of caffeine as an inhibitor in the aggregation of amyloid forming peptides: a unified molecular dynamics simulation and experimental study
Paper

Low generation anionic dendrimers modulate islet amyloid polypeptide self-assembly and inhibit pancreatic β-cell toxicity

The self-assembly and cytotoxicity of the amyloidogenic peptide IAPP can be controlled with low generation anionic dendrimers.

Graphical abstract: Low generation anionic dendrimers modulate islet amyloid polypeptide self-assembly and inhibit pancreatic β-cell toxicity
Paper

Tacrine-allyl/propargylcysteine–benzothiazole trihybrids as potential anti-Alzheimer's drug candidates

Eight novel trihybrids as potential anti-Alzheimer's drugs showed high AChEI and anti-Aβ aggregation capacity, moderate anti-ROS activity and low MAO inhibition.

Graphical abstract: Tacrine-allyl/propargylcysteine–benzothiazole trihybrids as potential anti-Alzheimer's drug candidates
Paper

Radiolabeled pyridinyl analogues of dibenzylideneacetone as β-amyloid imaging probes

In continuation of our investigation of the dibenzylideneacetone scaffold as Aβ imaging probes, a series of derivatives containing pyridine rings with lower lipophilicity was synthesized and evaluated.

Graphical abstract: Radiolabeled pyridinyl analogues of dibenzylideneacetone as β-amyloid imaging probes
Paper

Cetyltrimethylammonium bromide (CTAB) promote amyloid fibril formation in carbohydrate binding protein (concanavalin A) at physiological pH

Low concentration of CTAB provoked cross β-sheet formation whereas high concentrations of CTAB direct to alpha helix induction in Con A.

Graphical abstract: Cetyltrimethylammonium bromide (CTAB) promote amyloid fibril formation in carbohydrate binding protein (concanavalin A) at physiological pH
Paper

Fluorescent gold nanoclusters for in vivo target imaging of Alzheimer's disease

Fluorescent gold nanoclusters for in vivo target imaging provides a new way for rapid and early diagnosis of Alzheimer's disease.

Graphical abstract: Fluorescent gold nanoclusters for in vivo target imaging of Alzheimer's disease
Paper

Understanding the structural requirements of cyclic sulfone hydroxyethylamines as hBACE1 inhibitors against Aβ plaques in Alzheimer's disease: a predictive QSAR approach

Beta (β)-site amyloid precursor protein cleaving enzyme 1 (BACE1) is one of the most important targets in Alzheimer's disease (AD), which is responsible for production and accumulation of beta amyloid (Aβ).

Graphical abstract: Understanding the structural requirements of cyclic sulfone hydroxyethylamines as hBACE1 inhibitors against Aβ plaques in Alzheimer's disease: a predictive QSAR approach
Paper

Synthesis and evaluation of neuroprotective 4-O-substituted chrysotoxine derivatives as potential multifunctional agents for the treatment of Alzheimer's disease

A series of 4-O-substituted chrysotoxine (CTX) derivatives were designed, synthesized and evaluated as multifunctional agents for the treatment of Alzheimer's disease (AD).

Graphical abstract: Synthesis and evaluation of neuroprotective 4-O-substituted chrysotoxine derivatives as potential multifunctional agents for the treatment of Alzheimer's disease
Paper

Bisphenol analogues differently affect human islet polypeptide amyloid formation

Bisphenols (BPs) are widely used in the production of plastic material, misfolded human islet amyloid polypeptide (hIAPP) is a causal factor in diabetes. We demonstrated BPs analogues show different effects on hIAPP amyloid formation.

Graphical abstract: Bisphenol analogues differently affect human islet polypeptide amyloid formation
Paper

Design, synthesis and evaluation of clioquinol–ebselen hybrids as multi-target-directed ligands against Alzheimer's disease

A novel series of compounds obtained by fusing the metal-chelating agent clioquinol and the antioxidant ebselen were designed, synthesized and evaluated as multi-target-directed ligands against Alzheimer's disease (AD).

Graphical abstract: Design, synthesis and evaluation of clioquinol–ebselen hybrids as multi-target-directed ligands against Alzheimer's disease
Paper

Synthesis and evaluation of 6-substituted 3-arylcoumarin derivatives as multifunctional acetylcholinesterase/monoamine oxidase B dual inhibitors for the treatment of Alzheimer’s disease

Compounds 5o and 5p were both multifunctional hAChE/hMAO-B dual inhibitors for the treatment of AD.

Graphical abstract: Synthesis and evaluation of 6-substituted 3-arylcoumarin derivatives as multifunctional acetylcholinesterase/monoamine oxidase B dual inhibitors for the treatment of Alzheimer’s disease
Paper

Amyloid fibrils as rapid and efficient nano-biosorbents for removal of dye pollutants

Amyloid fibrils: promising nano-biosorbents for removing dye pollutants. These protein nanofibers have special structures with exposed net +/−charges and hydrophobic regions for rapid and efficient adsorption of various dyes.

Graphical abstract: Amyloid fibrils as rapid and efficient nano-biosorbents for removal of dye pollutants
Paper

Multifunctional 3-Schiff base-4-hydroxycoumarin derivatives with monoamine oxidase inhibition, anti-β-amyloid aggregation, metal chelation, antioxidant and neuroprotection properties against Alzheimer's disease

These 3-Schiff base-4-hydroxycoumarin derivatives were multifunctional agents with monoamine oxidase inhibition, anti-β-amyloid aggregation, metal chelation, antioxidant and neuroprotection properties against Alzheimer's disease.

Graphical abstract: Multifunctional 3-Schiff base-4-hydroxycoumarin derivatives with monoamine oxidase inhibition, anti-β-amyloid aggregation, metal chelation, antioxidant and neuroprotection properties against Alzheimer's disease
Paper

The mechanisms of flavonoids inhibiting conformational transition of amyloid-β42 monomer: a comparative molecular dynamics simulation study

Flavonoids can bind Aβ42 to inhibit the aggregation of Aβ42 monomer.

Graphical abstract: The mechanisms of flavonoids inhibiting conformational transition of amyloid-β42 monomer: a comparative molecular dynamics simulation study
Paper

Extrinsic plasmalogens suppress neuronal apoptosis in mouse neuroblastoma Neuro-2A cells: importance of plasmalogen molecular species

Plasmalogen, especially those having 22:6, suppressed neuronal apoptosis via death receptor and mitochondrial pathways. These mechanisms of action of plasmalogen may be responsible for regulation of membrane functions and second messenger production.

Graphical abstract: Extrinsic plasmalogens suppress neuronal apoptosis in mouse neuroblastoma Neuro-2A cells: importance of plasmalogen molecular species
Paper

Curcumin induces structural change and reduces the growth of amyloid-β fibrils: a QCM-D study

Curcumin inhibited Aβ fibril growth through leading to the structural conversion of the growing fibril to a more loosely constructed aggregate.

Graphical abstract: Curcumin induces structural change and reduces the growth of amyloid-β fibrils: a QCM-D study
Paper

Ruthenium complexes as inhibitors of human islet amyloid polypeptide aggregation, an effect that prevents beta cell apoptosis

Herein we show that ruthenium complexes could inhibit fibrosis of hIAPP and protect the hIAPP-induced cell damage by suppressing ROS generation, indicating the application potential of the complexes in treatment of T2DM by targeting hIAPP.

Graphical abstract: Ruthenium complexes as inhibitors of human islet amyloid polypeptide aggregation, an effect that prevents beta cell apoptosis
Paper

Design of a structural framework with potential use to develop balanced multifunctional agents against Alzheimer's disease

A series of small molecules had been designed, synthesized, and evaluated as multifunctional ligands against Alzheimer's disease (AD).

Graphical abstract: Design of a structural framework with potential use to develop balanced multifunctional agents against Alzheimer's disease
Paper

Inhibition of insulin amyloid fibril formation by ferulic acid, a natural compound found in many vegetables and fruits

The effect of Ferulic acid on insulin amyloid fibril formation has been studied using different biophysical methods in vitro.

Graphical abstract: Inhibition of insulin amyloid fibril formation by ferulic acid, a natural compound found in many vegetables and fruits
Paper

Zn2+, Cd2+ and Cu2+ mediated formation of amyloid like fibrils by the monomers of β-sheet rich peanut agglutinin

Formation of amyloid like nano fibrils of pea nut agglutinin that is rich in beta sheet secondary structure under thermal conditions in the presence of Zn2+, Cd2+ and Cu2+, and their affinity to contain plasmid PBR322 have been demonstrated by microscopy.

Graphical abstract: Zn2+, Cd2+ and Cu2+ mediated formation of amyloid like fibrils by the monomers of β-sheet rich peanut agglutinin
Paper

Role of zinc and copper metal ions in amyloid β-peptides Aβ1–40 and Aβ1–42 aggregation

Conformational structural changes of Aβ1–40 and Aβ1–42 monomers during the interaction of Cu2+ and Zn2+ metal ions.

Graphical abstract: Role of zinc and copper metal ions in amyloid β-peptides Aβ1–40 and Aβ1–42 aggregation
Paper

Exploring structural requirements of leads for improving activity and selectivity against CDK5/p25 in Alzheimer's disease: an in silico approach

A congeneric series of 224 cyclin-dependant kinase 5/p25 (CDK5/p25) inhibitors was exploited to understand the structural requirements for improving activity against CDK5/p25 and selectivity over CDK2.

Graphical abstract: Exploring structural requirements of leads for improving activity and selectivity against CDK5/p25 in Alzheimer's disease: an in silico approach
29 items

About this collection

This collection, Guest Edited by Associate Editor Dr. Surajit Ghosh, celebrates World Alzheimer’s month - an international campaign to raise awareness.

Over the past couple of years RSC Advances has published a variety of research which enhances our understanding of neurological diseases such as Alzheimer’s disease (AD). This collections focuses on various aspects of AD including; nanoscience, metabolomics and metal based early detection, surface plasmon resonance, quantitative structure-activity relationship (QSAR) models for better designing of inhibitors, chemical inhibitors, imaging probes, and small molecules for in vivo imaging. We hope this range of significant contributions from various research groups will inspire many researchers working within this field.

To mark world Alzheimer’s month, this collection will be free* to access throughout September.

*Access is free through a personal publishing account.

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