Results 71 to 80 of about 252,333 (374)

Self-assembly of protein amyloid: a competition between amorphous and ordered aggregation [PDF]

Physical Review E 80, 031922 (2009), 2008
Protein aggregation in the form of amyloid fibrils has important biological and technological implications. Although the self-assembly process is highly efficient, aggregates not in the fibrillar form would also occur and it is important to include these disordered species when discussing the thermodynamic equilibrium behavior of the system.
arxiv   +1 more source

Oxidation of Cholesterol by Amyloid Precursor Protein and β-Amyloid Peptide [PDF]

Journal of Biological Chemistry, 2005
Alzheimer's disease (AD) is characterized by accumulation of the neurotoxic peptide beta-amyloid, which is produced by proteolysis of amyloid precursor protein (APP). APP is a large membrane-bound copper-binding protein that is essential in maintaining synaptic function and may play a role in synaptogenesis. beta-Amyloid has been shown to contribute to
Daniel L. Alkon, Thomas J. Nelson
openaire   +3 more sources

Noninvasive Assessment of β‐Secretase Activity Through Click Chemistry‐Mediated Enrichment of Neuronal Extracellular Vesicles to Detect Alzheimer's Disease

Advanced Science, EarlyView.
This study presents the NEV β‐secretase activity assay, a groundbreaking method for noninvasive evaluation of β‐secretase activity in Alzheimer's disease (AD) patients, enabling the generation of individualized β‐secretase activity profiles.
Hyoyong Kim, Junseok Lee, Audrey Qian, You‐Ren Ji, Ryan Zhang, Qixin Hu, Christopher Kazu Williams, Han‐Yu Chuang, Matthew D. Smalley, Yaya Xu, Liang Gao, Mary C. Mayo, Ting Zhang, Edwin M. Posadas, Zaldy S. Tan, Harry V. Vinters, Keith Vossel, Shino Magaki, Yazhen Zhu, Hsian‐Rong Tseng   +19 more
wiley   +1 more source

Amyloid Fibril Solubility [PDF]

J. Phys. Chem. B, 2015, 119 (46), pp 14631-14636, 2015
It is well established that amyloid fibril solubility is protein specific, but how solubility depends on the interactions between the fibril building blocks is not clear. Here we use a simple protein model and perform Monte Carlo simulations to directly measure the solubility of amyloid fibrils as a function of the interaction between the fibril ...
arxiv   +1 more source

Insights into the physiological function of the β-amyloid precursor protein: beyond Alzheimer's disease

Journal of Neurochemistry, 2014
The β‐amyloid precursor protein (APP) has been extensively studied for its role as the precursor of the β‐amyloid protein (Aβ) of Alzheimer's disease. However, the normal function of APP remains largely unknown.
E. Dawkins, D. Small
semanticscholar   +1 more source

Microglial MS4A4A Protects against Epileptic Seizures in Alzheimer's Disease

Advanced Science, EarlyView.
This study has unveiled significant new insights into the role of MS4A4A in Alzheimer's disease‐related epilepsy, highlighting its impact on microglial phagocytosis, mitochondrial metabolism, and cytoskeleton, and demonstrating its therapeutic potential in epilepsy management.
Meng Jiang, Qingqing Li, Jianhui Chen, Ruochong Li, Jun Yao, Yong Hu, Haizheng Zhang, Lixin Cai, Maoguo Luo, Yu Sun, Wenwen Zeng   +10 more
wiley   +1 more source

Membrane-protein interactions hold the key to understanding amyloid formation [PDF]

J. Phys. Chem. Letters 5, 633-635 (2014), 2014
In this perspective we describe the critical role membranes play in modulating the structures of the Amyloid Precursor Proteins to produce the peptides involved in the Alzheimer's disease. Some of the key concepts related to protein aggregation including the potential role of the excited states of monomers in initiating protein aggregation are ...
arxiv  

The hidden hand of lipids in the amyloid cascade [PDF]

arXiv, 2022
Intrinsically disordered proteins (IDPs), such as amyloid polypeptide (IAPP), beta-amyloid (A\b{eta}), and {\alpha}-synuclein are linked to the insurgence of type 2 diabetes, Alzheimer's, and Parkinson's diseases, respectively. Common molecular mechanisms have been explored to elucidate the toxicity pathway of these proteins.
arxiv  

Data on thrombotic ischemic lesions in the presence or absence of amyloid ß-protein precursor or its homolog amyloid precursor-like protein-2 in mice

Data in Brief, 2016
Amyloid ß-protein precursor (AßPP) and amyloid precursor-like protein-2 (APLP2) are potent inhibitors of thrombosis, see related article “The influence of the amyloid ß-protein and its precursor in modulating cerebral thrombosis” (Van Nostrand, 2016) [1].
Feng Xu, William E. Van Nostrand
doaj  

Generation of Neural Organoids and Their Application in Disease Modeling and Regenerative Medicine

Advanced Science, EarlyView.
Neural organoids provide a versatile platform for neurological research. Advances in organoid technology have partially achieved human neural tissue complexity in terms of tissue structure, cell diversity, and neural signaling, offering insights into neural disorders and regenerative strategies. Technology advances from biomaterials, bio‐manufacturing,
Ruiqi Huang, Feng Gao, Liqun Yu, Haokun Chen, Rongrong Zhu   +4 more
wiley   +1 more source