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The presence of oligomeric aggregates, which is often observed during the process of amyloid formation, has recently attracted much attention since it has been associated with neurodegenerative conditions such as Alzheimer's and Parkinson's…

Biomolecules · Quantitative Biology 2009-01-14 Stefan Auer , Filip Meersman , Christopher M. Dobson , Michele Vendruscolo

We employ the Hopfield model as a simplified framework to explore both the memory deficits and the biochemical processes characteristic of Alzheimer's disease. By simulating neuronal death and synaptic degradation through increasing the…

Neurons and Cognition · Quantitative Biology 2024-10-11 Sai Nag Anurag Nangunoori , Akshara Karthic Mahadevan

Imaging-based early diagnosis of Alzheimer Disease (AD) has become an effective approach, especially by using nuclear medicine imaging techniques such as Positron Emission Topography (PET). In various literature it has been found that PET…

Machine Learning · Computer Science 2021-03-24 Jiaming Guo , Wei Qiu , Xiang Li , Xuandong Zhao , Ning Guo , Quanzheng Li

Membrane proteins serve a wide range of vital roles in the functioning of living organisms. Compared to other classes of proteins, determining membrane protein structures remains a challenge, in large part due to the difficulty in…

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…

Soft Condensed Matter · Physics 2014-07-08 John E. Straub , D. Thirumalai

The formation of amyloid plaques in the cortical and hippocampal brain regions caused by abnormal deposition of extracellular amyloid \b{eta}-protein (A\b{eta}) is a characteristic pathological hallmark of early Alzheimer's disease (AD),…

Medical Physics · Physics 2022-07-28 Zhenhui Zhang , Yujiao Shi , Qi Shen , Zhixiong Wang , Da Xing , Sihua Yang

MRI-based entorhinal cortical thickness (eCT) measurements predict cognitive decline in Alzheimer's disease (AD) with low cost and minimal invasiveness. Two prominent imaging paradigms, FreeSurfer (FS) and Advanced Normalization Tools…

Applications · Statistics 2022-04-08 Jesse W. Birchfield , Nicholas J. Tustison , Andrew J. Holbrook

Objective: We develop a deep learning framework based on the pre-trained Bidirectional Encoder Representations from Transformers (BERT) model using unstructured clinical notes from electronic health records (EHRs) to predict the risk of…

Alzheimer's disease (AD) causes alterations of brain network structure and function. The latter consists of connectivity changes between oscillatory processes at different frequency channels. We proposed a multi-layer network approach to…

Neurons and Cognition · Quantitative Biology 2017-10-17 Jeremy Guillon , Yohan Attal , Olivier Colliot , Valentina La Corte , Bruno Dubois , Denis Schwartz , Mario Chavez , Fabrizio De Vico Fallani

Alzheimer's disease is the most common neurodegenerative disease. The aim of this study is to infer structural changes in brain connectivity resulting from disease progression using cortical thickness measurements from a cohort of…

In this note, we apply the theory of stochastic homogenization to find the asymptotic behavior of the solution of a set of Smoluchowski's coagulation-diffusion equations with non-homogeneous Neumann boundary conditions. This system is meant…

Probability · Mathematics 2019-04-26 Bruno Franchi , Martin Heida , Silvia Lorenzani

The Fisher-Kolmogorov equation is a diffusion-reaction PDE that is used to model the accumulation of prionic proteins, which are responsible for many different neurological disorders. Likely, the most important and studied misfolded protein…

Numerical Analysis · Mathematics 2024-12-31 Mattia Corti , Francesca Bonizzoni , Paola F. Antonietti , Alfio M. Quarteroni

Two isoforms of beta amyloid peptides, Ab40 and Ab42, differ from each other only in the last two amino acids, IA, at the end of Ab42. They, however, differ significantly in their ability in inducing Alzheimer's disease (AD). The rate…

Biological Physics · Physics 2022-09-23 John Bridstrup , Jian-Min Yuan , John S. Schreck

Recent studies suggest that combined analysis of Magnetic resonance imaging~(MRI) that measures brain atrophy and positron emission tomography~(PET) that quantifies hypo-metabolism provides improved accuracy in diagnosing Alzheimer's…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Apoorva Sikka , Skand Vishwanath Peri , Deepti. R. Bathula

Alzheimer's disease (AD) is a devastating neurodegenerative disorder with no cure and limited treatment solutions that are unable to target any of the suspected causes. Increasing evidence suggests that one of the causes of…

Biological Physics · Physics 2017-04-28 Morgan Robinson , Brenda Yasie Lee , Zoya Leonenko

Gaining access to the cell interior is fundamental for many applications, such as electrical recording, drug and biomolecular delivery. A very promising technique consists of culturing cells on nano/micro pillars. The tight adhesion and…

Natively unstructured proteins defy the classical "one sequence-one structure" paradigm of protein science. Monomers of these proteins in pathological conditions can aggregate in the cell, a process that underlies socially relevant…

Antimicrobial peptides (AMPs) play important roles in cancer, autoimmune diseases, and aging. A critical aspect of AMP functionality is their targeted interaction with pathogen membranes, which often possess altered lipid compositions.…

In 2006 Mom\v{c}ilovi\'c et al. measured radioactvity levels of 210Po and 210Bi by alpha- and beta-measurements resp. to determine the natural distribuion of environmental radon daughters in the different brain areas of an Alzheimer Disease…

Medical Physics · Physics 2018-06-26 Michael S. Pravikoff , Christine Marquet , Philippe Hubert
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