Alzheimer’s disease (AD) is a neurodegenerative disease with proteopathy characterized by abnormalities in amyloid beta (Aβ) and tau proteins. Defective amyloid and tau propagate and aggregate, leading to eventual amyloid plaques and neurofibrillary tangles. New data show that a third proteopathy, an altered conformation of the scaffolding protein filamin A (FLNA), is critically linked to the a...

Shear distortion of amyloid-beta (Aβ) solutions accelerates amyloid cascade reactions that may yield different toxic oligomers than those formed in quiescent solutions. Recent experiments indicate that cerebrospinal fluid (CSF) and interstitial fluid (ISF) containing Aβ flow through narrow brain perivascular pathways and brain parenchyma. This paper suggests that such flow causes shear distorti...

how to cite this article: bhadbhade a, cheng dw. amyloid precursor protein processing in alzheimer’s disease. iranian journal of child neurology2012;6(1):1-5. alzheimer’s disease (ad) is a progressive neurodegenerative disorder and a leading cause of dementia. the ad is characterized by presence of intraneuronal tangles and extracellular plaques in the brain. the plaques are composed of dense a...

Alzheimer's disease (AD) is histopathologically characterized by the build-up of fibrillar amyloid beta (Aβ) in the form of amyloid plaques and the development of intraneuronal neurofibrillary tangles consisting of aggregated hyperphosphorylated Tau. Although amyloid fibrils were originally considered responsible for AD pathogenesis, recent convincing evidence strongly implicates soluble oligom...

introduction: retinoid signaling has been argued to have favorable effects on alzheimer's disease (ad). we studied the role of chronic intracerebroventricular (icv) injection of all-trans retinoic acid (atra) on the amyloid-beta (aβ) model of ad. methods: adult male rats weighing 260-330 g were divided into 12 groups of 8 each. six groups of rats received atra (3nm, 30nm, 3μm, 0.3mm, 30mm/...

objective: extracellular deposition of the beta-amyloid (aβ) peptide, which is the main finding in the pathophysiology of alzheimer’s disease (ad), leads to oxidative damage and apoptosis in neurons. melissa officinalis (m. officinalis) is a medicinal plant from the lamiaceae family that has neuroprotective activity. in the present study we have investigated the protective effect of the acidic ...

Alzheimer's disease (AD) is a devastating disorder that is clinically characterized by a comprehensive cognitive decline. Accumulation of the amyloid-beta (Aβ) peptide plays a pivotal role in the pathogenesis of AD. In AD, the conversion of Aβ from a physiological soluble monomeric form into insoluble fibrillar conformation is an important event. The most toxic form of Aβ is oligomers, which is...

Alzheimer's disease (AD) is marked by the accumulation of neuronal plaques from insoluble amyloid-beta (Aβ) peptides. Growing evidence for the role of Aβ oligomers in neuronal cell cytotoxicity and pathogenesis has prompted the development of novel techniques to better understand the early stages of aggregation. Near infrared (NIR) optical trapping was applied to characterize the early stages o...

BACKGROUND Currently available therapies for Alzheimer's disease (AD) do not treat the underlying cause of AD. Anecdotal observations in nursing homes from multiple studies strongly suggest an inverse relationship between cancer and AD. Therefore, we reasoned that oncology drugs may be effective against AD. METHODS We screened a library of all the FDA-approved oncology drugs and identified bi...

Identification of amyloid beta (Aβ) plaques in the cerebral cortex models Alzheimer’s Disease (AD) is critical importance for research into therapeutics. Here we propose an innovative framework which automatically measures Aβ a rodent model, based on anatomical segmentation using deep learning approach. The has three phases: data acquisition to enhance image quality preprocessing techniques and...