Results 121 to 130 of about 516,976 (376)

Why Abeta42 Is Much More Toxic Than Abeta40 [PDF]

arXiv, 2018
Amyloid precursor with 770 amino acids dimerizes and aggregates, as do its c terminal 99 amino acids and amyloid 40,42 amino acids fragments. The titled question has been discussed extensively, and here it is addressed further using thermodynamic scaling theory to analyze mutational trends in structural factors and kinetics.
arxiv  

Crucial role of non-specific interactions in amyloid nucleation [PDF]

, 2014
Protein oligomers have been implicated as toxic agents in a wide range of amyloid-related diseases. Yet it has remained unsolved whether the oligomers are a necessary step in the formation of amyloid fibrils, or just a dangerous by-product. Analogously, it has not been resolved if the amyloid nucleation process is a classical one-step nucleation ...
arxiv   +1 more source

Oncogenic Gain of Function in Glioblastoma Is Linked to Mutant p53 Amyloid Oligomers. [PDF]

, 2020
Tumor-associated p53 mutations endow cells with malignant phenotypes, including chemoresistance. Amyloid-like oligomers of mutant p53 transform this tumor suppressor into an oncogene.
de Oliveira, Guilherme AP, Ferretti, Giulia DS, Gratton, Enrico, Lima, Flavia RS, Motta, Michelle F, Norberto, Douglas R, Pedrote, Murilo M, Silva, Jerson L, Spohr, Tania CLS   +8 more
core   +1 more source

Amyloid Cardiomyopathy: All that sparkles is Amyloid [PDF]

International Cardiovascular Forum Journal, 2016
A 73 year old female with no past medical history presented to our emergency department (ED) with gradually worsening shortness of breath for a few weeks. She denied any associated complaints of chest pain, palpitations or dizziness. On physical exam, the patient had bilateral rales at the lung bases.
Jacob Shani, On Chen, Sameer Chadha, Abhinav Saxena, Adnan Sadiq   +4 more
openaire   +1 more source

Occurrence, Risk Factors, and Prognosis of Acute Cerebral Microinfarcts in CADASIL

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is the most common monogenic cerebral small vessel disease in adults. This study investigates the occurrence, risk factors, and prognosis of acute cerebral microinfarcts (ACMIs) in patients with CADASIL.
Xuejiao Men, Hui Li, Zhuoxin Guo, Bin Qin, Hengfang Ruan, Ruipeng Cai, Bingjun Zhang, Aimin Wu, Lei Wei, Yongqiang Dai, Haiyan Li, Zhengqi Lu   +11 more
wiley   +1 more source

Critical appraisal on mitochondrial dysfunction in Alzheimer’s disease

AGING MEDICINE, Volume 5, Issue 4, Page 272-280, December 2022., 2022
Amyloid plaques deposit on neurons in case of Alzheimer's Disease. Mitochondria play a vital role in pathogenesis of Alzheimer's Disease. Mitochondrial dysfunction can lead to formation of mPTP, alteration of complexes 1,3 and 4, deficits in bioenergetics with impaired mitochondrial biogenesis. Abstract It is widely recognized that Alzheimer's disease (
Faizan Ahmad, Punya Sachdeva
wiley   +1 more source

Mechanical Characterization of Amyloid Fibrils Using Coarse-Grained Normal Mode Analysis [PDF]

Advanced Functional Materials 2011, 2011
Recent experimental studies have shown that amyloid fibril formed by aggregation of {\beta} peptide exhibits excellent mechanical properties comparable to other protein materials such as actin filaments and microtubules. These excellent mechanical properties of amyloid fibrils are related to their functional role in disease expression.
arxiv  

CNS Mitochondria‐Derived Vesicle in Blood: Potential Biomarkers for Brain Mitochondria Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mitochondrial dysfunction is a hallmark of neurodegenerative diseases like Alzheimer's (AD) and Parkinson's (PD). Our goal was to develop practical, noninvasive methods to assess mitochondrial status through the detection of mitochondria‐derived vesicles (MDVs).
Qi Liu, Wentao Chen, Yahong Wu, Zhen Guo, Jun Chen, Chen Tian, Pan Wang, Shaopeng Zeng, Bin Xu, Jing Duan, Shilong Han, Xiao Xiong, Jing Zhang   +12 more
wiley   +1 more source

A pilot randomized controlled trial of WeiNaoKang (SaiLuoTong) in treating vascular dementia

AGING MEDICINE, Volume 5, Issue 4, Page 246-256, December 2022., 2022
A 16‐week randomized double‐blind, placebo‐controlled trial for vascular dementia was carried out with WeiNaoKang (or SaiLuoTong). There were significant differences in improvement in cognitive function and activities of daily living, favouring the treatment group.
Junguang Liu, Dennis Chang, Dennis Cordato, Kien Lee, Hugh Dixson, Alan Bensoussan, Daniel Kam Yin Chan   +6 more
wiley   +1 more source

Molecular dynamics simulations of mechanical failure in polymorphic arrangements of amyloid fibrils containing structural defects

Beilstein Journal of Nanotechnology, 2013
We examine how the different steric packing arrangements found in amyloid fibril polymorphs can modulate their mechanical properties using steered molecular dynamics simulations. Our calculations demonstrate that for fibrils containing structural defects,
Hlengisizwe Ndlovu, Alison E. Ashcroft, Sheena E. Radford, Sarah A. Harris   +3 more
doaj   +1 more source