Results 61 to 70 of about 249,317 (377)

Plasma Amyloid-β Oligomerization Tendency Predicts Amyloid PET Positivity

Clinical Interventions in Aging, 2021
Jung-Min Pyun,1 Ji Sun Ryu,2 Ryan Lee,2 Kyu Hawn Shim,3 Young Chul Youn,4 Nayoung Ryoo,5 Sang-Won Han,5 Young Ho Park,5 Sungmin Kang,2 Seong Soo A An,6 SangYun Kim5 1Department of Neurology, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu-si,
Pyun JM, Ryu JS, Lee R, Shim KH, Youn YC, Ryoo N, Han SW, Park YH, Kang S, An SS, Kim SY   +10 more
doaj  

The Effect of 24-Hydroxy Cholesterol on Production of Reactive Oxygen Species (ROS) in Cultured Astrocytes Treated by Beta Amyloid

مجله دانشکده پزشکی اصفهان, 2018
Background: Alzheimer's disease is a neurodegenerative disorder characterized by the accumulation of beta-amyloid plaques outside the cells, and intracellular hyperphosphorylation of tau protein.
Zahra Nazeri, Shirin Azizidoost, Maryam Cheraghzadeh, Bahar Sepiani, Alireza Kheirollah   +4 more
doaj   +1 more source

Autophagy in cancer and protein conformational disorders

FEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Mechanical stretching of amyloid Abeta11-42 fibrils using steered molecular dynamics [PDF]

arXiv, 2021
Mechanical strength of amyloid beta fibrils has been known to be correlated with neuronal cell death. Here, we resorted to steered molecular dynamics (SMD) simulations to mechanically stretch a single S-shape amyloid beta Abeta11-42 dodecamer fibril in vacuum.
arxiv  

The novel amyloid-beta peptide aptamer inhibits intracellular amyloid-beta peptide toxicity

Neural Regeneration Research, 2013
Amyloid β peptide binding alcohol dehydrogenase (ABAD) decoy peptide (DP) can competitively antagonize binding of amyloid β peptide to ABAD and inhibit the cytotoxic effects of amyloid β peptide. Based on peptide aptamers, the present study inserted ABAD-DP into the disulfide bond of human thioredoxin (TRX) using molecular cloning technique to ...
Lihe Che, Yi Yang, Yu Yang, Jiang Wu, Chi Ma, Xu Wang, Mingyue Jia, Mingyu Wang   +7 more
openaire   +2 more sources

Mapping Hsp104 interactions using cross‐linking mass spectrometry

FEBS Open Bio, EarlyView.
This study examines how cross‐linking mass spectrometry can be utilized to analyze ATP‐induced conformational changes in Hsp104 and its interactions with substrates. We developed an analytical pipeline to distinguish between intra‐ and inter‐subunit contacts within the hexameric homo‐oligomer and discovered contacts between Hsp104 and a selected ...
Kinga Westphal, Karolina Michalska, Andrzej Joachimiak, Lukasz A. Joachimiak   +3 more
wiley   +1 more source

Molecular simulations of amyloid beta assemblies

Advances in Physics: X, 2020
Several neurodegenerative disorders arise from the abnormal protein aggregation in the nervous tissue leading tointracellular inclusions or extracellular aggregates in specific brain areas.
Gianvito Grasso, Andrea Danani
doaj   +1 more source

Gold Nanoparticles Mediate Improved Detection of β-amyloid Aggregates by Fluorescence

Nanomaterials, 2020
The early detection of the amyloid beta peptide aggregates involved in Alzheimer’s disease is crucial to test new potential treatments. In this research, we improved the detection of amyloid beta peptide aggregates in vitro and ex vivo by fluorescence ...
Pedro Jara-Guajardo, Pablo Cabrera, Freddy Celis, Mónica Soler, Isadora Berlanga, Nicole Parra-Muñoz, Gerardo Acosta, Fernando Albericio, Fanny Guzman, Marcelo Campos, Alejandra Alvarez, Francisco Morales-Zavala, Marcelo J Kogan   +12 more
doaj   +1 more source

Neurotoxic amyloid β‐peptide and tau produce cytokine‐like effects on PMCA in glioblastoma cell lines, enhancing its activity and isoforms expression

FEBS Open Bio, EarlyView.
Two biomarkers of Alzheimer's disease, amyloid β‐peptide (Aβ) and tau, induce the transformation of U‐251 and other glioblastoma cell lines into neurotoxic A1‐like reactive astrocytes. This transformation is produced by cytokines and is followed by upregulation of PMCA activity and isoform expression, and is closely associated with inflammation, as ...
María Berrocal, Alberto Alvarez‐Barrientos, Ana M. Mata   +2 more
wiley   +1 more source

Opening Amyloid-Windows to the Secondary Structure of Proteins: The Amyloidogenecity Increases Tenfold Inside Beta-Sheets [PDF]

arXiv, 2022
Methods from artificial intelligence (AI), in general, and machine learning, in particular, have kept conquering new territories in numerous areas of science. Most of the applications of these techniques are restricted to the classification of large data sets, but new scientific knowledge can seldom be inferred from these tools. Here we show that an AI-
arxiv