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Träfflista för sökning "WFRF:(Lannfelt L) ;pers:(Hardy J)"

Sökning: WFRF:(Lannfelt L) > Hardy J

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  • Pulit, S. L., et al. (författare)
  • Atrial fibrillation genetic risk differentiates cardioembolic stroke from other stroke subtypes
  • 2018
  • Ingår i: Neurology-Genetics. - : Ovid Technologies (Wolters Kluwer Health). - 2376-7839. ; 4:6
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective We sought to assess whether genetic risk factors for atrial fibrillation (AF) can explain cardioembolic stroke risk. We evaluated genetic correlations between a previous genetic study of AF and AF in the presence of cardioembolic stroke using genome-wide genotypes from the Stroke Genetics Network (N = 3,190 AF cases, 3,000 cardioembolic stroke cases, and 28,026 referents). We tested whether a previously validated AF polygenic risk score (PRS) associated with cardioembolic and other stroke subtypes after accounting for AF clinical risk factors. We observed a strong correlation between previously reported genetic risk for AF, AF in the presence of stroke, and cardioembolic stroke (Pearson r = 0.77 and 0.76, respectively, across SNPs with p < 4.4 x 10(-4) in the previous AF meta-analysis). An AF PRS, adjusted for clinical AF risk factors, was associated with cardioembolic stroke (odds ratio [OR] per SD = 1.40, p = 1.45 x 10(-48)), explaining similar to 20% of the heritable component of cardioembolic stroke risk. The AF PRS was also associated with stroke of undetermined cause (OR per SD = 1.07,p = 0.004), but no other primary stroke subtypes (all p > 0.1). Genetic risk of AF is associated with cardioembolic stroke, independent of clinical risk factors. Studies are warranted to determine whether AF genetic risk can serve as a biomarker for strokes caused by AF.
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  • Hampel, H., et al. (författare)
  • The Amyloid-beta Pathway in Alzheimer's Disease
  • 2021
  • Ingår i: Molecular Psychiatry. - : Springer Science and Business Media LLC. - 1359-4184 .- 1476-5578. ; 26, s. 5481-5503
  • Tidskriftsartikel (refereegranskat)abstract
    • Breakthroughs in molecular medicine have positioned the amyloid-beta (A beta) pathway at the center of Alzheimer's disease (AD) pathophysiology. While the detailed molecular mechanisms of the pathway and the spatial-temporal dynamics leading to synaptic failure, neurodegeneration, and clinical onset are still under intense investigation, the established biochemical alterations of the A beta cycle remain the core biological hallmark of AD and are promising targets for the development of disease-modifying therapies. Here, we systematically review and update the vast state-of-the-art literature of A beta science with evidence from basic research studies to human genetic and multi-modal biomarker investigations, which supports a crucial role of A beta pathway dyshomeostasis in AD pathophysiological dynamics. We discuss the evidence highlighting a differentiated interaction of distinct A beta species with other AD-related biological mechanisms, such as tau-mediated, neuroimmune and inflammatory changes, as well as a neurochemical imbalance. Through the lens of the latest development of multimodal in vivo biomarkers of AD, this cross-disciplinary review examines the compelling hypothesis- and data-driven rationale for A beta-targeting therapeutic strategies in development for the early treatment of AD.
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  • Hampel, H., et al. (författare)
  • The amyloid-beta pathway in Alzheimer's disease: a plain language summary
  • 2023
  • Ingår i: Neurodegenerative Disease Management. - : Future Medicine Ltd. - 1758-2024 .- 1758-2032. ; 13:3, s. 141-9
  • Tidskriftsartikel (refereegranskat)abstract
    • What is this summary about? This plain language summary of an article published in Molecular Psychiatry, reviews the evidence supporting the role of the amyloid-b (Ab) pathway and its dysregulation in Alzheimer's disease (AD), and highlights the rationale for drugs targeting the A beta pathway in the early stages of the disease. Why is this important? A beta is a protein fragment (or peptide) that exists in several forms distinguished by their size, shape/structure, degree of solubility and disease relevance. The accumulation of A beta plaques is a hallmark of AD. However, smaller, soluble aggregates of A beta - including Ab protofibrils - also play a role in the disease. Because A beta-related disease mechanisms are complex, the diagnosis, treatment and management of AD should be reflective of and guided by up-to-date scientific knowledge and research findings in this area. This article describes the A beta protein and its role in AD, summarizing the evidence showing that altered A beta clearance from the brain may lead to the imbalance, toxic buildup and misfolding of the protein - triggering a cascade of cellular, molecular and systematic events that ultimately lead to AD. What are the key takeaways? The physiological balance of brain A beta levels in the context of AD is complex. Despite many unanswered questions, mounting evidence indicates that A beta has a central role in driving AD progression. A better understanding of the A beta pathway biology will help identify the best therapeutic targets for AD and inform treatment approaches.
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