Results 31 to 40 of about 24,368 (229)
Alzheimer’s disease pathology is characterized by β-amyloid plaques and neurofibrillary tangles. Amyloid precursor protein is processed by β and γ secretase, resulting in the production of β-amyloid peptides with a length ranging from 38 to 43 amino ...
Alejandro Soto-Ospina +7 more
doaj +1 more source
Presenilin-1-Dependent Transcriptome Changes [PDF]
Familial forms of Alzheimer's disease (FADs) are caused by the expression of mutant presenilin 1 (PS1) or presenilin 2. Using DNA microarrays, we explored the brain transcription profiles of mice with conditional knock-out ofPS1(cKOPS1) in the forebrain.
Károly, Mirnics +10 more
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Presenilin 1 Glu318Gly Polymorphism [PDF]
The significance of the presenilin 1 (PSEN1) Glu318Gly polymorphism has been described as either a causal mutation with reduced penetrance or a benign polymorphism. When this polymorphism is found in a symptomatic person with a family history of dementia, counseling on recurrence risk becomes very problematic.To demonstrate that the PSEN1 Glu318Gly ...
Jill S, Goldman +5 more
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A patient with posterior cortical atrophy possesses a novel mutation in the presenilin 1 gene. [PDF]
Posterior cortical atrophy is a dementia syndrome with symptoms of cortical visual dysfunction, associated with amyloid plaques and neurofibrillary tangles predominantly affecting visual association cortex. Most patients diagnosed with posterior cortical
Emilia J Sitek +12 more
doaj +1 more source
Presenilin-1 mutations and Alzheimer’s disease [PDF]
Mutations in the PSEN1 gene, encoding presenilin-1 (PS1), are the most common cause of familial Alzheimer’s disease (FAD). PS1 functions as the catalytic subunit of γ-secretase, an intramembranous protease that cleaves a variety of type 1 transmembrane proteins, notably including the amyloid precursor protein (APP) and Notch.
Raymond J, Kelleher, Jie, Shen
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Presenilin 1 is essential for cardiac morphogenesis [PDF]
AbstractPresenilin 1 (PS1) is the gene responsible for the development of early‐onset familial Alzheimer's disease. PS1‐deficient mice have been reported to show defects in neurogenesis, somitogenesis and angiogenesis. Here, we report cardiac anomaly in PS1‐deficient mice: the mutant hearts exhibited ventricular septal defect, double outlet right ...
Mitsunari, Nakajima +3 more
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Structural biology of presenilin 1 complexes [PDF]
The presenilin genes were first identified as the site of missense mutations causing early onset autosomal dominant familial Alzheimer's disease. Subsequent work has shown that the presenilin proteins are the catalytic subunits of a hetero-tetrameric complex containing APH1, nicastrin and PEN-2.
Li, Yi +7 more
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Alzheimer's Disease-like Alterations in Peripheral Cells from Presenilin-1 Transgenic Mice
Many cases of early-onset inherited Alzheimer's disease (AD) are caused by mutations in the presenilin-1 (PS1) gene. Expression of PS1 mutations in cell culture systems and in primary neurons from transgenic mice increases their vulnerability to cell ...
Anne Eckert +6 more
doaj +1 more source
Presenilin/γ-secretase and inflammation
Presenilins (PS) are the catalytic components of γ-secretase, an aspartyl protease that regulates through proteolytic processing the function of multiple signaling proteins.
Carlos A Saura
doaj +1 more source
Pathogenic PSEN1 Thr119Ile Mutation in Two Korean Patients with Early-Onset Alzheimer’s Disease
We report a probable pathogenic Thr119Ile mutation in presenilin-1 (PSEN1) in two unrelated Korean patients, diagnosed with early onset Alzheimer’s disease (EOAD). The first patient presented with memory decline when she was 64 years old.
Eva Bagyinszky +8 more
doaj +1 more source

