amyloid plaque


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amyloid plaque

A pathologic lesion of Alzheimer’s brains, which is characterised by aggregated amyloid staining material.

Pathology
Congo red staining of tissue reveals an apple-green coloured birefringence when viewed with crossed polarising lenses.

amyloid plaque

Neurology A pathologic lesion of Alzheimer's brains characterized by aggregated amyloid staining material. See Alzheimer's disease, Neurofibrillary tangle.
References in periodicals archive ?
In patients treated up to 48 months, amyloid plaque continued to decrease in a dose- and time-Amyloid plaque levels in the 10 mg/kg fixed-dose at 48 months remained at a level considered below the quantitative cut-point that discriminates between a positive and negative scan.
Sandrock: The presence of amyloid plaques is a pathological hallmark of Alzheimer's disease.
"Astrocyte activation peaks roughly twenty years before the expected symptoms and then goes into decline, in contrast to the accumulation of amyloid plaques, which increases constantly over time until clinical symptoms show.
"The amyloid plaques were more diffuse and appeared at an earlier stage than the tau tangles.
All had their brains scanned using a tracer chemical that binds with amyloid plaques so that they show up on the images.
Zhang (11) stated that Curcumin helps the macrophages to clear amyloid plaque indirectly through immune system.
Complete regression of amyloid plaques in middle aged mice and significant reduction of plaques in the cortex and hippocampus of old mice were reported at the end of the study.
Researchers in St Louis tested the sleep patterns of 100 people aged 45 to 80, and found that 25% of the participants had evidence of amyloid plaques, which can appear years before the symptoms of Alzheimer's begin.
During the past decade, a second "wave" of drug development for AD was based on the prevention of and/ or removal of amyloid plaques, or the reduction of the toxic proteins found in the plaques, A[beta].
It is believed to stop the spread of amyloid plaques that damage the wiring in the brain and lead to Alzheimer's and other forms of dementia.
Like other aging mammals, old cats have signs of amyloid plaque and neurofibrillary tangles in their brains similar to those in humans with Alzheimer's disease.
His work, which has previously shown that oxidative stress precedes the onset of amyloid plaques, will elucidate the role of aluminum as a modulator of brain oxidative damage, and will examine the hypothesis that vitamin E, a dietary antioxidant, could delay the onset of amyloid plaque deposition in the animal model.