Beta-amyloid Plaques
Beta-amyloid Plaques - Related Videos
03:14
Imaging Amyloid-Beta Plaques in Brain Tissue Sections by Immunolabeling and Curcumin Staining
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2025
Source: Maiti, P. et. al.,. Labeling and Imaging of Amyloid Plaques in Brain Tissue Using the Natural Polyphenol Curcumin. J. Vis. Exp. (2019)This video demonstrates the imaging procedure of amyloid-beta plaques in brain tissue sections using immunolabeling and curcumin staining. Immunolabeling provides specificity for amyloid-beta, while curcumin selectively binds β-sheet-rich fibrils, enhancing visualization. The co-localization of red and green fluorescence confirms the presence of plaques.
02:25
An Assay for Analyzing Test β-Glucan as an Immunotherapy Strategy against Brain Cancer Cells
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2025
This video demonstrates an in vitro assay utilizing β-glucans to activate microglial cells for the production of superoxide radicals, a reactive oxygen species. In brain cancer cells, the generated reactive oxidants actively suppress tumor cell proliferation and induce cell death.
06:02
Detection of Neuritic Plaques in Alzheimer's Disease Mouse Model
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Cited by 66 •
2011
One of the pathological characteristics of AD is the formation of Amyloid β protein positive neuritic plaques. In this protocol we describe two methods to detect neuritic plaques in transgenic AD model mice: immunohistochemical detection using the ABC and DAB method and fluorescent detection using thioflavin S staining method.
13:00
Plaque Assay: A Method to Determine Viral Titer as Plaque Forming Units (PFU)
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2023
Source: Tilde Andersson1, Rolf Lood1 1 Department of Clinical Sciences Lund, Division of Infection Medicine, Biomedical Center, Lund University, 221 00 Lund, Sweden Viruses that infect prokaryotic organisms, called bacteriophages or simply phages, were identified in the early 20th century by Twort (1) and d'Hérelle (2) independently. Phages have since been widely recognized for their therapeutic value (3) and their influence on human (4), as well as global, ecosystems (5). Current concerns have...
10:53
Plaque Assay for Murine Norovirus
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Cited by 99 •
2012
Here we describe a method to quantify infectious particles of murine norovirus (MNV), which is the only norovirus that efficiently replicates in cell culture. The plaque assay takes advantage of MNV’s tropism for murine macrophages and can be adapted for use with biological or environmental samples containing MNV.
FAQs
Beta-amyloid accumulation reflects a sequence of molecular events rather than a single deposition step. Enzymatic cleavage of amyloid precursor protein produces beta-amyloid fragments; these fragments can misfold and associate into oligomers and fibrils before collecting outside nerve cells as plaques. Following this progression helps researchers connect protein processing with the structural changes examined in Alzheimer’s disease.
Oligomers and fibrils are intermediate aggregate forms in the progression toward plaque accumulation. Distinguishing them matters because tissue may contain different stages of beta-amyloid organization, not only mature deposits. Researchers can therefore examine whether a disease process or therapy affects fragment formation, aggregation, or the later collection of material between nerve cells.
Plaques are studied with tau tangles, synaptic dysfunction, and neuroinflammation because Alzheimer’s disease research examines several connected features of neurodegeneration. This combined perspective prevents researchers from interpreting extracellular deposits in isolation. Comparing these findings helps place beta-amyloid accumulation within a broader biological context that includes changes affecting nerve-cell communication and inflammatory responses.
Researchers assess beta-amyloid plaques through brain imaging, cerebrospinal fluid analysis, and tissue examination. These approaches provide complementary ways to investigate plaque-related changes: imaging examines the brain, fluid analysis samples cerebrospinal fluid, and tissue examination evaluates biological material directly. Using more than one approach supports disease research and strengthens assessment of plaque-associated findings.
Plaque detection supports several research and clinical objectives, including investigating Alzheimer’s disease, contributing to diagnosis, and evaluating therapies. Its value extends beyond confirming that deposits are present because measurements can be considered alongside tau tangles, synaptic dysfunction, and neuroinflammation. This broader interpretation helps researchers relate plaque findings to the larger process of neurodegeneration.
Therapies targeting beta-amyloid may be designed either to reduce its production or to promote its clearance. Plaque-related detection methods provide ways to evaluate these therapeutic strategies during research. By examining findings through brain imaging, cerebrospinal fluid analysis, or tissue examination, investigators can assess treatment-related effects within studies focused on beta-amyloid biology.