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相关论文: On the statistical mechanics of prion diseases

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We present a theory for the laboratory and epidemiological data for incubation times in infectious prion diseases. The central feature of our model is that slow growth of misfolded protein-aggregates from small initial seeds controls the…

凝聚态物理 · 物理学 2016-08-16 R. V. Kulkarni , A. Slepoy , R. R. P. Singh , D. L. Cox , D. Mobley , F. Pázmándi

Transmissible spongiform encephalopathies like the bovine spongiform encephalopathy (BSE) and the Creutzfeldt-Jakob disease (CJD) in humans are neurodegenerative diseases for which prions are the attributed pathogenic agents. A widely…

统计力学 · 物理学 2009-11-10 A. S. Ferreira , M. A. A. da Silva , J. C. Cressoni

Prion is a misfolded protein found in mammals that causes infectious diseases of the nervous system in humans and animals. Prion diseases are invariably fatal and highly infectious neurodegenerative diseases that affect a wide variety of…

生物物理 · 物理学 2015-03-25 Jiapu Zhang , Feng Wang

Prion diseases cover a large range of neurodegenerative diseases in humans and animals, which are invariably fatal and highly infectious. By now there have not been some effective therapeutic approaches or medications to treat all prion…

生物物理 · 物理学 2012-10-30 Jiapu Zhang

We extend our previous stochastic cellular automata based model for areal aggregation of prion proteins on neuronal surfaces. The new anisotropic model allow us to simulate both strong beta-sheet and weaker attachment bonds between…

Prion diseases are invariably fatal and highly infectious neurodegenerative diseases that affect a wide variety of mammalian species such as sheep, goats, mice, humans, chimpanzees, hamsters, cattle, elks, deer, minks, cats, chicken, pigs,…

生物大分子 · 定量生物学 2013-12-02 Jiapu Zhang , Yuanli Zhang

Prions are misfolded proteins that transmit their structural arrangement to neighboring proteins. In biological systems, prion dynamics can produce a variety of complex functional outcomes. Yet, an understanding of prionic causes has been…

软凝聚态物质 · 物理学 2025-01-14 Mathieu Ouellet , Dani S. Bassett , Lee C. Bassett , Kieran A. Murphy , Shubhankar P. Patankar

A new mathematical model for the dynamics of prion proliferation involving an ordinary differential equation coupled with a partial integro-differential equation is analyzed, continuing earlier work. We show the well-posedness of this…

偏微分方程分析 · 数学 2007-05-23 Hans Engler , Jan Pruess , Glenn F. Webb

Many neurodegenerative diseases are related to the propagation and accumulation of toxic proteins throughout the brain. The lesions created by aggregates of these toxic proteins further lead to cell death and accelerated tissue atrophy. A…

神经元与认知 · 定量生物学 2018-10-17 Johannes Weickenmeier , Ellen Kuhl , Alain Goriely

We consider a model for the polymerization (fragmentation) process involved in infectious prion self-replication and study both its dynamics and non-zero steady state. We address several issues. Firstly, we give conditions leading to size…

Spatio-temporal pathogen spread is often partially observed at the metapopulation scale. Available data correspond to proxies and are incomplete, censored and heterogeneous. Moreover, representing such biological systems often leads to…

种群与进化 · 定量生物学 2023-12-04 Gaël Beaunée , Pauline Ezanno , Alain Joly , Pierre Nicolas , Elisabeta Vergu

Prion diseases (e.g. "mad cow" disease in cattle, chronic wasting disease in deer and elk, CJD in humans) have been a major public health concern affecting humans and almost all animals. However, dogs are strongly resistant to prion…

生物物理 · 物理学 2021-07-22 Jiapu Zhang

We investigate the folding behavior of protein sequences by numerically studying all sequences with maximally compact lattice model through exhaustive enumeration. We get the prion-like behavior of protein folding. Individual proteins…

生物大分子 · 定量生物学 2014-11-18 Yong-Yun Ji , You-Quan Li , Jun-Wen Mao , Xiao-Wei Tang

Prion-like proteins play crucial parts in biological processes in organisms ranging from yeast to humans. For instance, many neurodegenerative diseases are believed to be caused by the production of prion-like proteins in neural tissue. As…

定量方法 · 定量生物学 2024-11-19 Johannes G. Borgqvist , Christoffer Gretarsson Alexandersen

Prion and prion-like molecules are a type of self replicating aggregate protein that have been implicated in a variety of neurodegenerative diseases. Over recent decades the molecular dynamics of prions have been characterized both…

种群与进化 · 定量生物学 2022-07-06 Saul Acevedo , Alexander J. Stewart

Zoonotic disease transmission between animals and humans is a growing risk and the agricultural context acts as a likely point of transition, with individual heterogeneity acting as an important contributor. Thus, understanding the dynamics…

种群与进化 · 定量生物学 2024-12-10 Teddy Lazebnik , Orr Spiegel

Infectious diseases are caused by pathogenic microorganisms and can spread through different ways. Mathematical models and computational simulation have been used extensively to investigate the transmission and spread of infectious…

Infectious diseases in livestock are well-known to infect multiple hosts and persist through the combination of within- and between-host transmission pathways. Uncertainty remains about the epidemic consequences of the disease being…

定量方法 · 定量生物学 2022-01-17 Nicolas C. Cardenas , Abagael L. Sykes , Francisco P. N. Lopes , Gustavo Machado

Prion diseases are invariably fatal and highly infectious neurodegenerative diseases affecting humans and animals. The neurodegenerative diseases such as Creutzfeldt-Jakob disease, variant Creutzfeldt-Jakob diseases,…

生物物理 · 物理学 2014-01-23 Jiapu Zhang

Neurodegenerative diseases are characterized by the accumulation of misfolded proteins and widespread disruptions in brain function. Computational modeling has advanced our understanding of these processes, but efforts have traditionally…

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