Results 81 to 90 of about 94,035 (378)

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  

Immunopurification and protease inhibitory properties of protease nexin-2/amyloid beta-protein precursor.

Journal of Biological Chemistry, 1990
Protease nexin-2 (PN-2) is a protease inhibitor that is synthesized and secreted by a variety of extravascular cells including human fibroblasts. It forms sodium dodecyl sulfate-stable complexes with trypsin, the epidermal growth factor binding protein and the gamma-subunit of nerve growth factor.
J S Farrow, Dennis D. Cunningham, W E Van Nostrand, S L Wagner   +3 more
openaire   +3 more sources

Amyloid precursor protein processing in human neurons with an allelic series of the PSEN1 intron 4 deletion mutation and total presenilin-1 knockout [PDF]

, 2019
Mutations in presenilin-1 (PSEN1), encoding the catalytic subunit of the amyloid precursor protein-processing enzyme γ-secretase, cause familial Alzheimer’s disease.
Arber, C, Fox, NC, Hardy, J, Pocock, JM, Ryan, NS, Toombs, J, Villegas-Llerena, C, Wray, S, Zetterberg, H   +8 more
core  

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

Treadmill exercise in combination with acousto-optic and olfactory stimulation improves cognitive function in APP/PS1 mice through the brain-derived neurotrophic factor- and Cygb-associated signaling pathways

Neural Regeneration Research
A reduction in adult neurogenesis is associated with behavioral abnormalities in patients with Alzheimer’s disease. Consequently, enhancing adult neurogenesis represents a promising therapeutic approach for mitigating disease symptoms and progression ...
Biao Xiao, Chaoyang Chu, Zhicheng Lin, Tianyuan Fang, Yuyu Zhou, Chuxia Zhang, Jianghui Shan, Shiyu Chen, Liping Li   +8 more
doaj   +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  

Inflammation as a Central Mechanism in Alzheimer\u27s Disease [PDF]

, 2018
Alzheimer\u27s disease (AD) is a progressive neurodegenerative disorder that is characterized by cognitive decline and the presence of two core pathologies, amyloid β plaques and neurofibrillary tangles.
Bemiller, Shane M., Kinney, Jefferson W., Lamb, Bruce T., Leisgang, Amanda M., Murtishaw, Andrew S., Salazar, Arnold M.   +5 more
core   +2 more sources

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

SYSTEMIC AMYLOIDOSIS: FINDING ON AUTOPSY. REPORT OF TWO CASES (IN SPANISH)

Revista Ciencias Biomédicas, 2014
Introduction: amyloidosis is the extracellular accumulation of amyloid material, which causes damage in the functioning of organs and tissues. It is characterized by the presence of protein folding, which acquire the capacity of self-assembly creating
Martínez-Muñoz Elsa, Baena-Del Valle Javier, Barrios-Barreto Rina, Herrera-Lomonaco Sandra, Redondo-Bermúdez César, Miranda-Marzola María del Carmen   +5 more
doaj  

A Cubic Equation of State for Amyloid Plaque Formation [PDF]

arXiv, 2013
Protein function depends on both protein structure and amino acid (aa) sequence. Here we show that modular features of both structure and function can be quantified from the aa sequence alone for the amyloid 770 aa precursor protein A4. Both the new second order hydropathicity scale, based on evolutionary optimization (self-organized criticality), and ...
arxiv