Results 31 to 40 of about 1,107,761 (194)

Fibril fragmentation in amyloid assembly and cytotoxicity: When size matters [PDF]

, 2010
Amyloid assemblies are associated with several debilitating human disorders. Understanding the intra- and extracellular assembly of normally soluble proteins and peptides into amyloid aggregates and how they disrupt normal cellular functions is therefore
Xue, Wei-Feng, Hellewell, Andrew L., Hewitt, Eric W., Radford, Sheena E.   +3 more
core   +1 more source

The Contribution of S100B Suppression by Arundic Acid to the Inhibition of the Glio-Toxicity Induced by Beta-Amyloid in an Astrocytes Culture [PDF]

Journal of Advanced Biomedical Sciences, 2019
Background & Objective: It has been shown that glial activation has important role in the pathophysiology of Alzheimer’s disease. S100B is an astrocyte specific factor with deleterious effects on the neuronal and non-neuronal cells in the central nervous
Mahshid Hosseini, Mojtaba Keshavarz, Mahmood Vessal   +2 more
doaj  

Intranasal neprilysin rapidly eliminates amyloid-beta plaques, but causes plaque compensations: the explanation why the amyloid-beta cascade may fail?

Neural Regeneration Research, 2022
Neurodegenerative brain disorders are a major burden in our society, such as Alzheimer´s disease. In order to repair or prevent such diseases, drugs are designed which enter the brain, but the blood-brain barrier limits their entry and the search for ...
Christian Humpel
doaj   +1 more source

Sinomenine inhibits amyloid beta-induced astrocyte activation and protects neurons against indirect toxicity

Molecular Brain, 2020
Amyloid beta is a major constituent of the plaques found in the brains of patients suffering from Alzheimer’s disease (AD). A growing body of research work suggests that neuroinflammation plays important roles in the development of AD. Thus, considerable
Deepali Singh, Apurva Agrawal, Chitra Mohinder Singh Singal, Hriday Shanker Pandey, Pankaj Seth, Shiv Kumar Sharma   +5 more
doaj   +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

A Physiological Role for Amyloid Beta Protein: Enhancement of Learning and Memory [PDF]

, 2008
Amyloid beta protein (A[beta]) is well recognized as having a significant role in the pathogenesis of Alzheimer's disease (AD). The reason for the presence of A[beta] and its physiological role in non-disease states is not clear.
John Morley, Steven N. Johnson, Lin Xu, William Banks, Kelvin A. Yamada, Susan Farr   +5 more
core  

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

In-vitro interaction studies between the amyloid PET tracer florbetaben and the amyloid-beta targeting antibodies lecanemab and donanemab on AD brain samples reveal no interferences

Alzheimer’s Research & Therapy
Background Amyloid PET imaging enables the in vivo visualization and quantification of amyloid-beta deposits in the brain. In research and clinical settings, it is further used to monitor amyloid-beta burden as well as the biological response to disease ...
Andre Mueller, Aleksandar Jovalekic, Marianne Chapleau, Julius Seidel, Maria Ritter, Eva-Maria Bickel, Nadine Kiessling, Emer MacSweeney, Andrew W. Stephens, Norman Koglin   +9 more
doaj   +1 more source

Neutron diffraction reveals sequence-specific membrane insertion of pre-fibrillar islet amyloid polypeptide and inhibition by rifampicin [PDF]

, 2005
Human islet amyloid polypeptide (hIAPP) forms amyloid deposits in non-insulin-dependent diabetes mellitus (NIDDM). Pre-fibrillar hIAPP oligomers (in contrast to monomeric IAPP or mature fibrils) increase membrane permeability, suggesting an important ...
Bradshaw, Jeremy P., Bradshaw, Jeremy, Hauss, T, Ashley, Richard H., Balali-Mood, K, Bradshaw, J. P., Balali-Mood, K., Hauß, Thomas, Ashley, R.H., Balali-Mood, Kia, Ashley, R. A., Ashley, R H, Balali Mood, K., Hau , T., Bradshaw, J.P.   +14 more
core   +1 more source