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Alzheimer's disease is a progressive neurodegenerative disorder associated with aging, which occurs both sporadically (the most common form of diagnosis) or due to familial passed mutations in genes associated with Alzheimer's pathology. [1] [2] Common symptoms associated with Alzheimer's disease include: memory loss, confusion, and mood ...
Alzheimer’s usually is a disease of people over age 65 and while simply getting older is the main risk, the APOE gene has long been known to play some role. It comes in three main varieties.
The biochemistry of Alzheimer's disease, the most common cause of dementia, is not yet very well understood. Alzheimer's disease (AD) has been identified as a proteopathy : a protein misfolding disease due to the accumulation of abnormally folded amyloid beta (Aβ) protein in the brain . [ 1 ]
Since telomere length has effects on health and mortality, this may have effects on health and the rate of aging in these offspring. The authors speculated that this effect may provide a mechanism by which populations have some plasticity in adapting longevity to different social and ecological contexts. [24]
Alzheimer's disease does not affect all memory capacities equally. Older memories of the person's life (episodic memory), facts learned (semantic memory), and implicit memory (the memory of the body on how to do things, such as using a fork to eat or how to drink from a glass) are affected to a lesser degree than new facts or memories. [42] [43]
It is an uncommon form of Alzheimer's, accounting for only 5–10% of all Alzheimer's cases. About 60% have a positive family history of Alzheimer's and 13% of them are inherited in an autosomal dominant manner. Most cases of early-onset Alzheimer's share the same traits as the "late-onset" form and are not caused by known genetic mutations.
Alzheimer's disease (AD) is a complex neurodegenerative disease that affects millions of people across the globe. [1] It is also a topic of interest in the East Asian population, especially as the burden of disease increases due to aging and population growth. [2] The pathogenesis of AD between ethnic groups is different. [3]
Thus, the genotype most at risk for Alzheimer's disease and at an earlier age is APOE4,4. Using genotype APOE3,3 as a benchmark (with the persons who have this genotype regarded as having a risk level of 1.0) and for white populations only, individuals with genotype APOE4,4 have an odds ratio of 14.9 of developing Alzheimer's disease ...
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